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Use a vendor directory for repeatable builds - fixes #816

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This is using godep to manage the vendor directory.
This commit is contained in:
Nick Craig-Wood 2016-10-31 15:50:02 +00:00
parent 01be5bff02
commit f7af730b50
637 changed files with 247384 additions and 11 deletions
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Apache License
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http://www.apache.org/licenses/
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5. Submission of Contributions. Unless You explicitly state otherwise,
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on Your own behalf and on Your sole responsibility, not on behalf
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incurred by, or claims asserted against, such Contributor by reason
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3
vendor/github.com/aws/aws-sdk-go/NOTICE.txt generated vendored Normal file
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AWS SDK for Go
Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
Copyright 2014-2015 Stripe, Inc.

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vendor/github.com/aws/aws-sdk-go/aws/awserr/error.go generated vendored Normal file
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// Package awserr represents API error interface accessors for the SDK.
package awserr
// An Error wraps lower level errors with code, message and an original error.
// The underlying concrete error type may also satisfy other interfaces which
// can be to used to obtain more specific information about the error.
//
// Calling Error() or String() will always include the full information about
// an error based on its underlying type.
//
// Example:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if awsErr, ok := err.(awserr.Error); ok {
// // Get error details
// log.Println("Error:", awsErr.Code(), awsErr.Message())
//
// // Prints out full error message, including original error if there was one.
// log.Println("Error:", awsErr.Error())
//
// // Get original error
// if origErr := awsErr.OrigErr(); origErr != nil {
// // operate on original error.
// }
// } else {
// fmt.Println(err.Error())
// }
// }
//
type Error interface {
// Satisfy the generic error interface.
error
// Returns the short phrase depicting the classification of the error.
Code() string
// Returns the error details message.
Message() string
// Returns the original error if one was set. Nil is returned if not set.
OrigErr() error
}
// BatchError is a batch of errors which also wraps lower level errors with
// code, message, and original errors. Calling Error() will include all errors
// that occurred in the batch.
//
// Deprecated: Replaced with BatchedErrors. Only defined for backwards
// compatibility.
type BatchError interface {
// Satisfy the generic error interface.
error
// Returns the short phrase depicting the classification of the error.
Code() string
// Returns the error details message.
Message() string
// Returns the original error if one was set. Nil is returned if not set.
OrigErrs() []error
}
// BatchedErrors is a batch of errors which also wraps lower level errors with
// code, message, and original errors. Calling Error() will include all errors
// that occurred in the batch.
//
// Replaces BatchError
type BatchedErrors interface {
// Satisfy the base Error interface.
Error
// Returns the original error if one was set. Nil is returned if not set.
OrigErrs() []error
}
// New returns an Error object described by the code, message, and origErr.
//
// If origErr satisfies the Error interface it will not be wrapped within a new
// Error object and will instead be returned.
func New(code, message string, origErr error) Error {
var errs []error
if origErr != nil {
errs = append(errs, origErr)
}
return newBaseError(code, message, errs)
}
// NewBatchError returns an BatchedErrors with a collection of errors as an
// array of errors.
func NewBatchError(code, message string, errs []error) BatchedErrors {
return newBaseError(code, message, errs)
}
// A RequestFailure is an interface to extract request failure information from
// an Error such as the request ID of the failed request returned by a service.
// RequestFailures may not always have a requestID value if the request failed
// prior to reaching the service such as a connection error.
//
// Example:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if reqerr, ok := err.(RequestFailure); ok {
// log.Println("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID())
// } else {
// log.Println("Error:", err.Error())
// }
// }
//
// Combined with awserr.Error:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if awsErr, ok := err.(awserr.Error); ok {
// // Generic AWS Error with Code, Message, and original error (if any)
// fmt.Println(awsErr.Code(), awsErr.Message(), awsErr.OrigErr())
//
// if reqErr, ok := err.(awserr.RequestFailure); ok {
// // A service error occurred
// fmt.Println(reqErr.StatusCode(), reqErr.RequestID())
// }
// } else {
// fmt.Println(err.Error())
// }
// }
//
type RequestFailure interface {
Error
// The status code of the HTTP response.
StatusCode() int
// The request ID returned by the service for a request failure. This will
// be empty if no request ID is available such as the request failed due
// to a connection error.
RequestID() string
}
// NewRequestFailure returns a new request error wrapper for the given Error
// provided.
func NewRequestFailure(err Error, statusCode int, reqID string) RequestFailure {
return newRequestError(err, statusCode, reqID)
}

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vendor/github.com/aws/aws-sdk-go/aws/awserr/types.go generated vendored Normal file
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package awserr
import "fmt"
// SprintError returns a string of the formatted error code.
//
// Both extra and origErr are optional. If they are included their lines
// will be added, but if they are not included their lines will be ignored.
func SprintError(code, message, extra string, origErr error) string {
msg := fmt.Sprintf("%s: %s", code, message)
if extra != "" {
msg = fmt.Sprintf("%s\n\t%s", msg, extra)
}
if origErr != nil {
msg = fmt.Sprintf("%s\ncaused by: %s", msg, origErr.Error())
}
return msg
}
// A baseError wraps the code and message which defines an error. It also
// can be used to wrap an original error object.
//
// Should be used as the root for errors satisfying the awserr.Error. Also
// for any error which does not fit into a specific error wrapper type.
type baseError struct {
// Classification of error
code string
// Detailed information about error
message string
// Optional original error this error is based off of. Allows building
// chained errors.
errs []error
}
// newBaseError returns an error object for the code, message, and errors.
//
// code is a short no whitespace phrase depicting the classification of
// the error that is being created.
//
// message is the free flow string containing detailed information about the
// error.
//
// origErrs is the error objects which will be nested under the new errors to
// be returned.
func newBaseError(code, message string, origErrs []error) *baseError {
b := &baseError{
code: code,
message: message,
errs: origErrs,
}
return b
}
// Error returns the string representation of the error.
//
// See ErrorWithExtra for formatting.
//
// Satisfies the error interface.
func (b baseError) Error() string {
size := len(b.errs)
if size > 0 {
return SprintError(b.code, b.message, "", errorList(b.errs))
}
return SprintError(b.code, b.message, "", nil)
}
// String returns the string representation of the error.
// Alias for Error to satisfy the stringer interface.
func (b baseError) String() string {
return b.Error()
}
// Code returns the short phrase depicting the classification of the error.
func (b baseError) Code() string {
return b.code
}
// Message returns the error details message.
func (b baseError) Message() string {
return b.message
}
// OrigErr returns the original error if one was set. Nil is returned if no
// error was set. This only returns the first element in the list. If the full
// list is needed, use BatchedErrors.
func (b baseError) OrigErr() error {
switch len(b.errs) {
case 0:
return nil
case 1:
return b.errs[0]
default:
if err, ok := b.errs[0].(Error); ok {
return NewBatchError(err.Code(), err.Message(), b.errs[1:])
}
return NewBatchError("BatchedErrors",
"multiple errors occurred", b.errs)
}
}
// OrigErrs returns the original errors if one was set. An empty slice is
// returned if no error was set.
func (b baseError) OrigErrs() []error {
return b.errs
}
// So that the Error interface type can be included as an anonymous field
// in the requestError struct and not conflict with the error.Error() method.
type awsError Error
// A requestError wraps a request or service error.
//
// Composed of baseError for code, message, and original error.
type requestError struct {
awsError
statusCode int
requestID string
}
// newRequestError returns a wrapped error with additional information for
// request status code, and service requestID.
//
// Should be used to wrap all request which involve service requests. Even if
// the request failed without a service response, but had an HTTP status code
// that may be meaningful.
//
// Also wraps original errors via the baseError.
func newRequestError(err Error, statusCode int, requestID string) *requestError {
return &requestError{
awsError: err,
statusCode: statusCode,
requestID: requestID,
}
}
// Error returns the string representation of the error.
// Satisfies the error interface.
func (r requestError) Error() string {
extra := fmt.Sprintf("status code: %d, request id: %s",
r.statusCode, r.requestID)
return SprintError(r.Code(), r.Message(), extra, r.OrigErr())
}
// String returns the string representation of the error.
// Alias for Error to satisfy the stringer interface.
func (r requestError) String() string {
return r.Error()
}
// StatusCode returns the wrapped status code for the error
func (r requestError) StatusCode() int {
return r.statusCode
}
// RequestID returns the wrapped requestID
func (r requestError) RequestID() string {
return r.requestID
}
// OrigErrs returns the original errors if one was set. An empty slice is
// returned if no error was set.
func (r requestError) OrigErrs() []error {
if b, ok := r.awsError.(BatchedErrors); ok {
return b.OrigErrs()
}
return []error{r.OrigErr()}
}
// An error list that satisfies the golang interface
type errorList []error
// Error returns the string representation of the error.
//
// Satisfies the error interface.
func (e errorList) Error() string {
msg := ""
// How do we want to handle the array size being zero
if size := len(e); size > 0 {
for i := 0; i < size; i++ {
msg += fmt.Sprintf("%s", e[i].Error())
// We check the next index to see if it is within the slice.
// If it is, then we append a newline. We do this, because unit tests
// could be broken with the additional '\n'
if i+1 < size {
msg += "\n"
}
}
}
return msg
}

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vendor/github.com/aws/aws-sdk-go/aws/awsutil/copy.go generated vendored Normal file
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package awsutil
import (
"io"
"reflect"
"time"
)
// Copy deeply copies a src structure to dst. Useful for copying request and
// response structures.
//
// Can copy between structs of different type, but will only copy fields which
// are assignable, and exist in both structs. Fields which are not assignable,
// or do not exist in both structs are ignored.
func Copy(dst, src interface{}) {
dstval := reflect.ValueOf(dst)
if !dstval.IsValid() {
panic("Copy dst cannot be nil")
}
rcopy(dstval, reflect.ValueOf(src), true)
}
// CopyOf returns a copy of src while also allocating the memory for dst.
// src must be a pointer type or this operation will fail.
func CopyOf(src interface{}) (dst interface{}) {
dsti := reflect.New(reflect.TypeOf(src).Elem())
dst = dsti.Interface()
rcopy(dsti, reflect.ValueOf(src), true)
return
}
// rcopy performs a recursive copy of values from the source to destination.
//
// root is used to skip certain aspects of the copy which are not valid
// for the root node of a object.
func rcopy(dst, src reflect.Value, root bool) {
if !src.IsValid() {
return
}
switch src.Kind() {
case reflect.Ptr:
if _, ok := src.Interface().(io.Reader); ok {
if dst.Kind() == reflect.Ptr && dst.Elem().CanSet() {
dst.Elem().Set(src)
} else if dst.CanSet() {
dst.Set(src)
}
} else {
e := src.Type().Elem()
if dst.CanSet() && !src.IsNil() {
if _, ok := src.Interface().(*time.Time); !ok {
dst.Set(reflect.New(e))
} else {
tempValue := reflect.New(e)
tempValue.Elem().Set(src.Elem())
// Sets time.Time's unexported values
dst.Set(tempValue)
}
}
if src.Elem().IsValid() {
// Keep the current root state since the depth hasn't changed
rcopy(dst.Elem(), src.Elem(), root)
}
}
case reflect.Struct:
t := dst.Type()
for i := 0; i < t.NumField(); i++ {
name := t.Field(i).Name
srcVal := src.FieldByName(name)
dstVal := dst.FieldByName(name)
if srcVal.IsValid() && dstVal.CanSet() {
rcopy(dstVal, srcVal, false)
}
}
case reflect.Slice:
if src.IsNil() {
break
}
s := reflect.MakeSlice(src.Type(), src.Len(), src.Cap())
dst.Set(s)
for i := 0; i < src.Len(); i++ {
rcopy(dst.Index(i), src.Index(i), false)
}
case reflect.Map:
if src.IsNil() {
break
}
s := reflect.MakeMap(src.Type())
dst.Set(s)
for _, k := range src.MapKeys() {
v := src.MapIndex(k)
v2 := reflect.New(v.Type()).Elem()
rcopy(v2, v, false)
dst.SetMapIndex(k, v2)
}
default:
// Assign the value if possible. If its not assignable, the value would
// need to be converted and the impact of that may be unexpected, or is
// not compatible with the dst type.
if src.Type().AssignableTo(dst.Type()) {
dst.Set(src)
}
}
}

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vendor/github.com/aws/aws-sdk-go/aws/awsutil/equal.go generated vendored Normal file
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package awsutil
import (
"reflect"
)
// DeepEqual returns if the two values are deeply equal like reflect.DeepEqual.
// In addition to this, this method will also dereference the input values if
// possible so the DeepEqual performed will not fail if one parameter is a
// pointer and the other is not.
//
// DeepEqual will not perform indirection of nested values of the input parameters.
func DeepEqual(a, b interface{}) bool {
ra := reflect.Indirect(reflect.ValueOf(a))
rb := reflect.Indirect(reflect.ValueOf(b))
if raValid, rbValid := ra.IsValid(), rb.IsValid(); !raValid && !rbValid {
// If the elements are both nil, and of the same type the are equal
// If they are of different types they are not equal
return reflect.TypeOf(a) == reflect.TypeOf(b)
} else if raValid != rbValid {
// Both values must be valid to be equal
return false
}
return reflect.DeepEqual(ra.Interface(), rb.Interface())
}

222
vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go generated vendored Normal file
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package awsutil
import (
"reflect"
"regexp"
"strconv"
"strings"
"github.com/jmespath/go-jmespath"
)
var indexRe = regexp.MustCompile(`(.+)\[(-?\d+)?\]$`)
// rValuesAtPath returns a slice of values found in value v. The values
// in v are explored recursively so all nested values are collected.
func rValuesAtPath(v interface{}, path string, createPath, caseSensitive, nilTerm bool) []reflect.Value {
pathparts := strings.Split(path, "||")
if len(pathparts) > 1 {
for _, pathpart := range pathparts {
vals := rValuesAtPath(v, pathpart, createPath, caseSensitive, nilTerm)
if len(vals) > 0 {
return vals
}
}
return nil
}
values := []reflect.Value{reflect.Indirect(reflect.ValueOf(v))}
components := strings.Split(path, ".")
for len(values) > 0 && len(components) > 0 {
var index *int64
var indexStar bool
c := strings.TrimSpace(components[0])
if c == "" { // no actual component, illegal syntax
return nil
} else if caseSensitive && c != "*" && strings.ToLower(c[0:1]) == c[0:1] {
// TODO normalize case for user
return nil // don't support unexported fields
}
// parse this component
if m := indexRe.FindStringSubmatch(c); m != nil {
c = m[1]
if m[2] == "" {
index = nil
indexStar = true
} else {
i, _ := strconv.ParseInt(m[2], 10, 32)
index = &i
indexStar = false
}
}
nextvals := []reflect.Value{}
for _, value := range values {
// pull component name out of struct member
if value.Kind() != reflect.Struct {
continue
}
if c == "*" { // pull all members
for i := 0; i < value.NumField(); i++ {
if f := reflect.Indirect(value.Field(i)); f.IsValid() {
nextvals = append(nextvals, f)
}
}
continue
}
value = value.FieldByNameFunc(func(name string) bool {
if c == name {
return true
} else if !caseSensitive && strings.ToLower(name) == strings.ToLower(c) {
return true
}
return false
})
if nilTerm && value.Kind() == reflect.Ptr && len(components[1:]) == 0 {
if !value.IsNil() {
value.Set(reflect.Zero(value.Type()))
}
return []reflect.Value{value}
}
if createPath && value.Kind() == reflect.Ptr && value.IsNil() {
// TODO if the value is the terminus it should not be created
// if the value to be set to its position is nil.
value.Set(reflect.New(value.Type().Elem()))
value = value.Elem()
} else {
value = reflect.Indirect(value)
}
if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
if !createPath && value.IsNil() {
value = reflect.ValueOf(nil)
}
}
if value.IsValid() {
nextvals = append(nextvals, value)
}
}
values = nextvals
if indexStar || index != nil {
nextvals = []reflect.Value{}
for _, valItem := range values {
value := reflect.Indirect(valItem)
if value.Kind() != reflect.Slice {
continue
}
if indexStar { // grab all indices
for i := 0; i < value.Len(); i++ {
idx := reflect.Indirect(value.Index(i))
if idx.IsValid() {
nextvals = append(nextvals, idx)
}
}
continue
}
// pull out index
i := int(*index)
if i >= value.Len() { // check out of bounds
if createPath {
// TODO resize slice
} else {
continue
}
} else if i < 0 { // support negative indexing
i = value.Len() + i
}
value = reflect.Indirect(value.Index(i))
if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
if !createPath && value.IsNil() {
value = reflect.ValueOf(nil)
}
}
if value.IsValid() {
nextvals = append(nextvals, value)
}
}
values = nextvals
}
components = components[1:]
}
return values
}
// ValuesAtPath returns a list of values at the case insensitive lexical
// path inside of a structure.
func ValuesAtPath(i interface{}, path string) ([]interface{}, error) {
result, err := jmespath.Search(path, i)
if err != nil {
return nil, err
}
v := reflect.ValueOf(result)
if !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil()) {
return nil, nil
}
if s, ok := result.([]interface{}); ok {
return s, err
}
if v.Kind() == reflect.Map && v.Len() == 0 {
return nil, nil
}
if v.Kind() == reflect.Slice {
out := make([]interface{}, v.Len())
for i := 0; i < v.Len(); i++ {
out[i] = v.Index(i).Interface()
}
return out, nil
}
return []interface{}{result}, nil
}
// SetValueAtPath sets a value at the case insensitive lexical path inside
// of a structure.
func SetValueAtPath(i interface{}, path string, v interface{}) {
if rvals := rValuesAtPath(i, path, true, false, v == nil); rvals != nil {
for _, rval := range rvals {
if rval.Kind() == reflect.Ptr && rval.IsNil() {
continue
}
setValue(rval, v)
}
}
}
func setValue(dstVal reflect.Value, src interface{}) {
if dstVal.Kind() == reflect.Ptr {
dstVal = reflect.Indirect(dstVal)
}
srcVal := reflect.ValueOf(src)
if !srcVal.IsValid() { // src is literal nil
if dstVal.CanAddr() {
// Convert to pointer so that pointer's value can be nil'ed
// dstVal = dstVal.Addr()
}
dstVal.Set(reflect.Zero(dstVal.Type()))
} else if srcVal.Kind() == reflect.Ptr {
if srcVal.IsNil() {
srcVal = reflect.Zero(dstVal.Type())
} else {
srcVal = reflect.ValueOf(src).Elem()
}
dstVal.Set(srcVal)
} else {
dstVal.Set(srcVal)
}
}

107
vendor/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go generated vendored Normal file
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package awsutil
import (
"bytes"
"fmt"
"io"
"reflect"
"strings"
)
// Prettify returns the string representation of a value.
func Prettify(i interface{}) string {
var buf bytes.Buffer
prettify(reflect.ValueOf(i), 0, &buf)
return buf.String()
}
// prettify will recursively walk value v to build a textual
// representation of the value.
func prettify(v reflect.Value, indent int, buf *bytes.Buffer) {
for v.Kind() == reflect.Ptr {
v = v.Elem()
}
switch v.Kind() {
case reflect.Struct:
strtype := v.Type().String()
if strtype == "time.Time" {
fmt.Fprintf(buf, "%s", v.Interface())
break
} else if strings.HasPrefix(strtype, "io.") {
buf.WriteString("<buffer>")
break
}
buf.WriteString("{\n")
names := []string{}
for i := 0; i < v.Type().NumField(); i++ {
name := v.Type().Field(i).Name
f := v.Field(i)
if name[0:1] == strings.ToLower(name[0:1]) {
continue // ignore unexported fields
}
if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice || f.Kind() == reflect.Map) && f.IsNil() {
continue // ignore unset fields
}
names = append(names, name)
}
for i, n := range names {
val := v.FieldByName(n)
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(n + ": ")
prettify(val, indent+2, buf)
if i < len(names)-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
case reflect.Slice:
nl, id, id2 := "", "", ""
if v.Len() > 3 {
nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
}
buf.WriteString("[" + nl)
for i := 0; i < v.Len(); i++ {
buf.WriteString(id2)
prettify(v.Index(i), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString("," + nl)
}
}
buf.WriteString(nl + id + "]")
case reflect.Map:
buf.WriteString("{\n")
for i, k := range v.MapKeys() {
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(k.String() + ": ")
prettify(v.MapIndex(k), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
default:
if !v.IsValid() {
fmt.Fprint(buf, "<invalid value>")
return
}
format := "%v"
switch v.Interface().(type) {
case string:
format = "%q"
case io.ReadSeeker, io.Reader:
format = "buffer(%p)"
}
fmt.Fprintf(buf, format, v.Interface())
}
}

89
vendor/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go generated vendored Normal file
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@ -0,0 +1,89 @@
package awsutil
import (
"bytes"
"fmt"
"reflect"
"strings"
)
// StringValue returns the string representation of a value.
func StringValue(i interface{}) string {
var buf bytes.Buffer
stringValue(reflect.ValueOf(i), 0, &buf)
return buf.String()
}
func stringValue(v reflect.Value, indent int, buf *bytes.Buffer) {
for v.Kind() == reflect.Ptr {
v = v.Elem()
}
switch v.Kind() {
case reflect.Struct:
buf.WriteString("{\n")
names := []string{}
for i := 0; i < v.Type().NumField(); i++ {
name := v.Type().Field(i).Name
f := v.Field(i)
if name[0:1] == strings.ToLower(name[0:1]) {
continue // ignore unexported fields
}
if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice) && f.IsNil() {
continue // ignore unset fields
}
names = append(names, name)
}
for i, n := range names {
val := v.FieldByName(n)
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(n + ": ")
stringValue(val, indent+2, buf)
if i < len(names)-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
case reflect.Slice:
nl, id, id2 := "", "", ""
if v.Len() > 3 {
nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
}
buf.WriteString("[" + nl)
for i := 0; i < v.Len(); i++ {
buf.WriteString(id2)
stringValue(v.Index(i), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString("," + nl)
}
}
buf.WriteString(nl + id + "]")
case reflect.Map:
buf.WriteString("{\n")
for i, k := range v.MapKeys() {
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(k.String() + ": ")
stringValue(v.MapIndex(k), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
default:
format := "%v"
switch v.Interface().(type) {
case string:
format = "%q"
}
fmt.Fprintf(buf, format, v.Interface())
}
}

139
vendor/github.com/aws/aws-sdk-go/aws/client/client.go generated vendored Normal file
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@ -0,0 +1,139 @@
package client
import (
"fmt"
"io/ioutil"
"net/http/httputil"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
)
// A Config provides configuration to a service client instance.
type Config struct {
Config *aws.Config
Handlers request.Handlers
Endpoint, SigningRegion string
}
// ConfigProvider provides a generic way for a service client to receive
// the ClientConfig without circular dependencies.
type ConfigProvider interface {
ClientConfig(serviceName string, cfgs ...*aws.Config) Config
}
// A Client implements the base client request and response handling
// used by all service clients.
type Client struct {
request.Retryer
metadata.ClientInfo
Config aws.Config
Handlers request.Handlers
}
// New will return a pointer to a new initialized service client.
func New(cfg aws.Config, info metadata.ClientInfo, handlers request.Handlers, options ...func(*Client)) *Client {
svc := &Client{
Config: cfg,
ClientInfo: info,
Handlers: handlers,
}
switch retryer, ok := cfg.Retryer.(request.Retryer); {
case ok:
svc.Retryer = retryer
case cfg.Retryer != nil && cfg.Logger != nil:
s := fmt.Sprintf("WARNING: %T does not implement request.Retryer; using DefaultRetryer instead", cfg.Retryer)
cfg.Logger.Log(s)
fallthrough
default:
maxRetries := aws.IntValue(cfg.MaxRetries)
if cfg.MaxRetries == nil || maxRetries == aws.UseServiceDefaultRetries {
maxRetries = 3
}
svc.Retryer = DefaultRetryer{NumMaxRetries: maxRetries}
}
svc.AddDebugHandlers()
for _, option := range options {
option(svc)
}
return svc
}
// NewRequest returns a new Request pointer for the service API
// operation and parameters.
func (c *Client) NewRequest(operation *request.Operation, params interface{}, data interface{}) *request.Request {
return request.New(c.Config, c.ClientInfo, c.Handlers, c.Retryer, operation, params, data)
}
// AddDebugHandlers injects debug logging handlers into the service to log request
// debug information.
func (c *Client) AddDebugHandlers() {
if !c.Config.LogLevel.AtLeast(aws.LogDebug) {
return
}
c.Handlers.Send.PushFront(logRequest)
c.Handlers.Send.PushBack(logResponse)
}
const logReqMsg = `DEBUG: Request %s/%s Details:
---[ REQUEST POST-SIGN ]-----------------------------
%s
-----------------------------------------------------`
const logReqErrMsg = `DEBUG ERROR: Request %s/%s:
---[ REQUEST DUMP ERROR ]-----------------------------
%s
-----------------------------------------------------`
func logRequest(r *request.Request) {
logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
dumpedBody, err := httputil.DumpRequestOut(r.HTTPRequest, logBody)
if err != nil {
r.Config.Logger.Log(fmt.Sprintf(logReqErrMsg, r.ClientInfo.ServiceName, r.Operation.Name, err))
return
}
if logBody {
// Reset the request body because dumpRequest will re-wrap the r.HTTPRequest's
// Body as a NoOpCloser and will not be reset after read by the HTTP
// client reader.
r.Body.Seek(r.BodyStart, 0)
r.HTTPRequest.Body = ioutil.NopCloser(r.Body)
}
r.Config.Logger.Log(fmt.Sprintf(logReqMsg, r.ClientInfo.ServiceName, r.Operation.Name, string(dumpedBody)))
}
const logRespMsg = `DEBUG: Response %s/%s Details:
---[ RESPONSE ]--------------------------------------
%s
-----------------------------------------------------`
const logRespErrMsg = `DEBUG ERROR: Response %s/%s:
---[ RESPONSE DUMP ERROR ]-----------------------------
%s
-----------------------------------------------------`
func logResponse(r *request.Request) {
var msg = "no response data"
if r.HTTPResponse != nil {
logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
dumpedBody, err := httputil.DumpResponse(r.HTTPResponse, logBody)
if err != nil {
r.Config.Logger.Log(fmt.Sprintf(logRespErrMsg, r.ClientInfo.ServiceName, r.Operation.Name, err))
return
}
msg = string(dumpedBody)
} else if r.Error != nil {
msg = r.Error.Error()
}
r.Config.Logger.Log(fmt.Sprintf(logRespMsg, r.ClientInfo.ServiceName, r.Operation.Name, msg))
}

90
vendor/github.com/aws/aws-sdk-go/aws/client/default_retryer.go generated vendored Normal file
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package client
import (
"math/rand"
"sync"
"time"
"github.com/aws/aws-sdk-go/aws/request"
)
// DefaultRetryer implements basic retry logic using exponential backoff for
// most services. If you want to implement custom retry logic, implement the
// request.Retryer interface or create a structure type that composes this
// struct and override the specific methods. For example, to override only
// the MaxRetries method:
//
// type retryer struct {
// service.DefaultRetryer
// }
//
// // This implementation always has 100 max retries
// func (d retryer) MaxRetries() uint { return 100 }
type DefaultRetryer struct {
NumMaxRetries int
}
// MaxRetries returns the number of maximum returns the service will use to make
// an individual API request.
func (d DefaultRetryer) MaxRetries() int {
return d.NumMaxRetries
}
var seededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})
// RetryRules returns the delay duration before retrying this request again
func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration {
// Set the upper limit of delay in retrying at ~five minutes
minTime := 30
throttle := d.shouldThrottle(r)
if throttle {
minTime = 500
}
retryCount := r.RetryCount
if retryCount > 13 {
retryCount = 13
} else if throttle && retryCount > 8 {
retryCount = 8
}
delay := (1 << uint(retryCount)) * (seededRand.Intn(minTime) + minTime)
return time.Duration(delay) * time.Millisecond
}
// ShouldRetry returns true if the request should be retried.
func (d DefaultRetryer) ShouldRetry(r *request.Request) bool {
if r.HTTPResponse.StatusCode >= 500 {
return true
}
return r.IsErrorRetryable() || d.shouldThrottle(r)
}
// ShouldThrottle returns true if the request should be throttled.
func (d DefaultRetryer) shouldThrottle(r *request.Request) bool {
if r.HTTPResponse.StatusCode == 502 ||
r.HTTPResponse.StatusCode == 503 ||
r.HTTPResponse.StatusCode == 504 {
return true
}
return r.IsErrorThrottle()
}
// lockedSource is a thread-safe implementation of rand.Source
type lockedSource struct {
lk sync.Mutex
src rand.Source
}
func (r *lockedSource) Int63() (n int64) {
r.lk.Lock()
n = r.src.Int63()
r.lk.Unlock()
return
}
func (r *lockedSource) Seed(seed int64) {
r.lk.Lock()
r.src.Seed(seed)
r.lk.Unlock()
}

12
vendor/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go generated vendored Normal file
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@ -0,0 +1,12 @@
package metadata
// ClientInfo wraps immutable data from the client.Client structure.
type ClientInfo struct {
ServiceName string
APIVersion string
Endpoint string
SigningName string
SigningRegion string
JSONVersion string
TargetPrefix string
}

422
vendor/github.com/aws/aws-sdk-go/aws/config.go generated vendored Normal file
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@ -0,0 +1,422 @@
package aws
import (
"net/http"
"time"
"github.com/aws/aws-sdk-go/aws/credentials"
)
// UseServiceDefaultRetries instructs the config to use the service's own
// default number of retries. This will be the default action if
// Config.MaxRetries is nil also.
const UseServiceDefaultRetries = -1
// RequestRetryer is an alias for a type that implements the request.Retryer
// interface.
type RequestRetryer interface{}
// A Config provides service configuration for service clients. By default,
// all clients will use the defaults.DefaultConfig tructure.
//
// // Create Session with MaxRetry configuration to be shared by multiple
// // service clients.
// sess, err := session.NewSession(&aws.Config{
// MaxRetries: aws.Int(3),
// })
//
// // Create S3 service client with a specific Region.
// svc := s3.New(sess, &aws.Config{
// Region: aws.String("us-west-2"),
// })
type Config struct {
// Enables verbose error printing of all credential chain errors.
// Should be used when wanting to see all errors while attempting to
// retrieve credentials.
CredentialsChainVerboseErrors *bool
// The credentials object to use when signing requests. Defaults to a
// chain of credential providers to search for credentials in environment
// variables, shared credential file, and EC2 Instance Roles.
Credentials *credentials.Credentials
// An optional endpoint URL (hostname only or fully qualified URI)
// that overrides the default generated endpoint for a client. Set this
// to `""` to use the default generated endpoint.
//
// @note You must still provide a `Region` value when specifying an
// endpoint for a client.
Endpoint *string
// The region to send requests to. This parameter is required and must
// be configured globally or on a per-client basis unless otherwise
// noted. A full list of regions is found in the "Regions and Endpoints"
// document.
//
// @see http://docs.aws.amazon.com/general/latest/gr/rande.html
// AWS Regions and Endpoints
Region *string
// Set this to `true` to disable SSL when sending requests. Defaults
// to `false`.
DisableSSL *bool
// The HTTP client to use when sending requests. Defaults to
// `http.DefaultClient`.
HTTPClient *http.Client
// An integer value representing the logging level. The default log level
// is zero (LogOff), which represents no logging. To enable logging set
// to a LogLevel Value.
LogLevel *LogLevelType
// The logger writer interface to write logging messages to. Defaults to
// standard out.
Logger Logger
// The maximum number of times that a request will be retried for failures.
// Defaults to -1, which defers the max retry setting to the service
// specific configuration.
MaxRetries *int
// Retryer guides how HTTP requests should be retried in case of
// recoverable failures.
//
// When nil or the value does not implement the request.Retryer interface,
// the request.DefaultRetryer will be used.
//
// When both Retryer and MaxRetries are non-nil, the former is used and
// the latter ignored.
//
// To set the Retryer field in a type-safe manner and with chaining, use
// the request.WithRetryer helper function:
//
// cfg := request.WithRetryer(aws.NewConfig(), myRetryer)
//
Retryer RequestRetryer
// Disables semantic parameter validation, which validates input for
// missing required fields and/or other semantic request input errors.
DisableParamValidation *bool
// Disables the computation of request and response checksums, e.g.,
// CRC32 checksums in Amazon DynamoDB.
DisableComputeChecksums *bool
// Set this to `true` to force the request to use path-style addressing,
// i.e., `http://s3.amazonaws.com/BUCKET/KEY`. By default, the S3 client
// will use virtual hosted bucket addressing when possible
// (`http://BUCKET.s3.amazonaws.com/KEY`).
//
// @note This configuration option is specific to the Amazon S3 service.
// @see http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html
// Amazon S3: Virtual Hosting of Buckets
S3ForcePathStyle *bool
// Set this to `true` to disable the SDK adding the `Expect: 100-Continue`
// header to PUT requests over 2MB of content. 100-Continue instructs the
// HTTP client not to send the body until the service responds with a
// `continue` status. This is useful to prevent sending the request body
// until after the request is authenticated, and validated.
//
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html
//
// 100-Continue is only enabled for Go 1.6 and above. See `http.Transport`'s
// `ExpectContinueTimeout` for information on adjusting the continue wait
// timeout. https://golang.org/pkg/net/http/#Transport
//
// You should use this flag to disble 100-Continue if you experience issues
// with proxies or third party S3 compatible services.
S3Disable100Continue *bool
// Set this to `true` to enable S3 Accelerate feature. For all operations
// compatible with S3 Accelerate will use the accelerate endpoint for
// requests. Requests not compatible will fall back to normal S3 requests.
//
// The bucket must be enable for accelerate to be used with S3 client with
// accelerate enabled. If the bucket is not enabled for accelerate an error
// will be returned. The bucket name must be DNS compatible to also work
// with accelerate.
//
// Not compatible with UseDualStack requests will fail if both flags are
// specified.
S3UseAccelerate *bool
// Set this to `true` to disable the EC2Metadata client from overriding the
// default http.Client's Timeout. This is helpful if you do not want the
// EC2Metadata client to create a new http.Client. This options is only
// meaningful if you're not already using a custom HTTP client with the
// SDK. Enabled by default.
//
// Must be set and provided to the session.NewSession() in order to disable
// the EC2Metadata overriding the timeout for default credentials chain.
//
// Example:
// sess, err := session.NewSession(aws.NewConfig().WithEC2MetadataDiableTimeoutOverride(true))
//
// svc := s3.New(sess)
//
EC2MetadataDisableTimeoutOverride *bool
// Instructs the endpiont to be generated for a service client to
// be the dual stack endpoint. The dual stack endpoint will support
// both IPv4 and IPv6 addressing.
//
// Setting this for a service which does not support dual stack will fail
// to make requets. It is not recommended to set this value on the session
// as it will apply to all service clients created with the session. Even
// services which don't support dual stack endpoints.
//
// If the Endpoint config value is also provided the UseDualStack flag
// will be ignored.
//
// Only supported with.
//
// sess, err := session.NewSession()
//
// svc := s3.New(sess, &aws.Config{
// UseDualStack: aws.Bool(true),
// })
UseDualStack *bool
// SleepDelay is an override for the func the SDK will call when sleeping
// during the lifecycle of a request. Specifically this will be used for
// request delays. This value should only be used for testing. To adjust
// the delay of a request see the aws/client.DefaultRetryer and
// aws/request.Retryer.
SleepDelay func(time.Duration)
}
// NewConfig returns a new Config pointer that can be chained with builder
// methods to set multiple configuration values inline without using pointers.
//
// // Create Session with MaxRetry configuration to be shared by multiple
// // service clients.
// sess, err := session.NewSession(aws.NewConfig().
// WithMaxRetries(3),
// )
//
// // Create S3 service client with a specific Region.
// svc := s3.New(sess, aws.NewConfig().
// WithRegion("us-west-2"),
// )
func NewConfig() *Config {
return &Config{}
}
// WithCredentialsChainVerboseErrors sets a config verbose errors boolean and returning
// a Config pointer.
func (c *Config) WithCredentialsChainVerboseErrors(verboseErrs bool) *Config {
c.CredentialsChainVerboseErrors = &verboseErrs
return c
}
// WithCredentials sets a config Credentials value returning a Config pointer
// for chaining.
func (c *Config) WithCredentials(creds *credentials.Credentials) *Config {
c.Credentials = creds
return c
}
// WithEndpoint sets a config Endpoint value returning a Config pointer for
// chaining.
func (c *Config) WithEndpoint(endpoint string) *Config {
c.Endpoint = &endpoint
return c
}
// WithRegion sets a config Region value returning a Config pointer for
// chaining.
func (c *Config) WithRegion(region string) *Config {
c.Region = &region
return c
}
// WithDisableSSL sets a config DisableSSL value returning a Config pointer
// for chaining.
func (c *Config) WithDisableSSL(disable bool) *Config {
c.DisableSSL = &disable
return c
}
// WithHTTPClient sets a config HTTPClient value returning a Config pointer
// for chaining.
func (c *Config) WithHTTPClient(client *http.Client) *Config {
c.HTTPClient = client
return c
}
// WithMaxRetries sets a config MaxRetries value returning a Config pointer
// for chaining.
func (c *Config) WithMaxRetries(max int) *Config {
c.MaxRetries = &max
return c
}
// WithDisableParamValidation sets a config DisableParamValidation value
// returning a Config pointer for chaining.
func (c *Config) WithDisableParamValidation(disable bool) *Config {
c.DisableParamValidation = &disable
return c
}
// WithDisableComputeChecksums sets a config DisableComputeChecksums value
// returning a Config pointer for chaining.
func (c *Config) WithDisableComputeChecksums(disable bool) *Config {
c.DisableComputeChecksums = &disable
return c
}
// WithLogLevel sets a config LogLevel value returning a Config pointer for
// chaining.
func (c *Config) WithLogLevel(level LogLevelType) *Config {
c.LogLevel = &level
return c
}
// WithLogger sets a config Logger value returning a Config pointer for
// chaining.
func (c *Config) WithLogger(logger Logger) *Config {
c.Logger = logger
return c
}
// WithS3ForcePathStyle sets a config S3ForcePathStyle value returning a Config
// pointer for chaining.
func (c *Config) WithS3ForcePathStyle(force bool) *Config {
c.S3ForcePathStyle = &force
return c
}
// WithS3Disable100Continue sets a config S3Disable100Continue value returning
// a Config pointer for chaining.
func (c *Config) WithS3Disable100Continue(disable bool) *Config {
c.S3Disable100Continue = &disable
return c
}
// WithS3UseAccelerate sets a config S3UseAccelerate value returning a Config
// pointer for chaining.
func (c *Config) WithS3UseAccelerate(enable bool) *Config {
c.S3UseAccelerate = &enable
return c
}
// WithUseDualStack sets a config UseDualStack value returning a Config
// pointer for chaining.
func (c *Config) WithUseDualStack(enable bool) *Config {
c.UseDualStack = &enable
return c
}
// WithEC2MetadataDisableTimeoutOverride sets a config EC2MetadataDisableTimeoutOverride value
// returning a Config pointer for chaining.
func (c *Config) WithEC2MetadataDisableTimeoutOverride(enable bool) *Config {
c.EC2MetadataDisableTimeoutOverride = &enable
return c
}
// WithSleepDelay overrides the function used to sleep while waiting for the
// next retry. Defaults to time.Sleep.
func (c *Config) WithSleepDelay(fn func(time.Duration)) *Config {
c.SleepDelay = fn
return c
}
// MergeIn merges the passed in configs into the existing config object.
func (c *Config) MergeIn(cfgs ...*Config) {
for _, other := range cfgs {
mergeInConfig(c, other)
}
}
func mergeInConfig(dst *Config, other *Config) {
if other == nil {
return
}
if other.CredentialsChainVerboseErrors != nil {
dst.CredentialsChainVerboseErrors = other.CredentialsChainVerboseErrors
}
if other.Credentials != nil {
dst.Credentials = other.Credentials
}
if other.Endpoint != nil {
dst.Endpoint = other.Endpoint
}
if other.Region != nil {
dst.Region = other.Region
}
if other.DisableSSL != nil {
dst.DisableSSL = other.DisableSSL
}
if other.HTTPClient != nil {
dst.HTTPClient = other.HTTPClient
}
if other.LogLevel != nil {
dst.LogLevel = other.LogLevel
}
if other.Logger != nil {
dst.Logger = other.Logger
}
if other.MaxRetries != nil {
dst.MaxRetries = other.MaxRetries
}
if other.Retryer != nil {
dst.Retryer = other.Retryer
}
if other.DisableParamValidation != nil {
dst.DisableParamValidation = other.DisableParamValidation
}
if other.DisableComputeChecksums != nil {
dst.DisableComputeChecksums = other.DisableComputeChecksums
}
if other.S3ForcePathStyle != nil {
dst.S3ForcePathStyle = other.S3ForcePathStyle
}
if other.S3Disable100Continue != nil {
dst.S3Disable100Continue = other.S3Disable100Continue
}
if other.S3UseAccelerate != nil {
dst.S3UseAccelerate = other.S3UseAccelerate
}
if other.UseDualStack != nil {
dst.UseDualStack = other.UseDualStack
}
if other.EC2MetadataDisableTimeoutOverride != nil {
dst.EC2MetadataDisableTimeoutOverride = other.EC2MetadataDisableTimeoutOverride
}
if other.SleepDelay != nil {
dst.SleepDelay = other.SleepDelay
}
}
// Copy will return a shallow copy of the Config object. If any additional
// configurations are provided they will be merged into the new config returned.
func (c *Config) Copy(cfgs ...*Config) *Config {
dst := &Config{}
dst.MergeIn(c)
for _, cfg := range cfgs {
dst.MergeIn(cfg)
}
return dst
}

369
vendor/github.com/aws/aws-sdk-go/aws/convert_types.go generated vendored Normal file
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@ -0,0 +1,369 @@
package aws
import "time"
// String returns a pointer to the string value passed in.
func String(v string) *string {
return &v
}
// StringValue returns the value of the string pointer passed in or
// "" if the pointer is nil.
func StringValue(v *string) string {
if v != nil {
return *v
}
return ""
}
// StringSlice converts a slice of string values into a slice of
// string pointers
func StringSlice(src []string) []*string {
dst := make([]*string, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// StringValueSlice converts a slice of string pointers into a slice of
// string values
func StringValueSlice(src []*string) []string {
dst := make([]string, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// StringMap converts a string map of string values into a string
// map of string pointers
func StringMap(src map[string]string) map[string]*string {
dst := make(map[string]*string)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// StringValueMap converts a string map of string pointers into a string
// map of string values
func StringValueMap(src map[string]*string) map[string]string {
dst := make(map[string]string)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Bool returns a pointer to the bool value passed in.
func Bool(v bool) *bool {
return &v
}
// BoolValue returns the value of the bool pointer passed in or
// false if the pointer is nil.
func BoolValue(v *bool) bool {
if v != nil {
return *v
}
return false
}
// BoolSlice converts a slice of bool values into a slice of
// bool pointers
func BoolSlice(src []bool) []*bool {
dst := make([]*bool, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// BoolValueSlice converts a slice of bool pointers into a slice of
// bool values
func BoolValueSlice(src []*bool) []bool {
dst := make([]bool, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// BoolMap converts a string map of bool values into a string
// map of bool pointers
func BoolMap(src map[string]bool) map[string]*bool {
dst := make(map[string]*bool)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// BoolValueMap converts a string map of bool pointers into a string
// map of bool values
func BoolValueMap(src map[string]*bool) map[string]bool {
dst := make(map[string]bool)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Int returns a pointer to the int value passed in.
func Int(v int) *int {
return &v
}
// IntValue returns the value of the int pointer passed in or
// 0 if the pointer is nil.
func IntValue(v *int) int {
if v != nil {
return *v
}
return 0
}
// IntSlice converts a slice of int values into a slice of
// int pointers
func IntSlice(src []int) []*int {
dst := make([]*int, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// IntValueSlice converts a slice of int pointers into a slice of
// int values
func IntValueSlice(src []*int) []int {
dst := make([]int, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// IntMap converts a string map of int values into a string
// map of int pointers
func IntMap(src map[string]int) map[string]*int {
dst := make(map[string]*int)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// IntValueMap converts a string map of int pointers into a string
// map of int values
func IntValueMap(src map[string]*int) map[string]int {
dst := make(map[string]int)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Int64 returns a pointer to the int64 value passed in.
func Int64(v int64) *int64 {
return &v
}
// Int64Value returns the value of the int64 pointer passed in or
// 0 if the pointer is nil.
func Int64Value(v *int64) int64 {
if v != nil {
return *v
}
return 0
}
// Int64Slice converts a slice of int64 values into a slice of
// int64 pointers
func Int64Slice(src []int64) []*int64 {
dst := make([]*int64, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// Int64ValueSlice converts a slice of int64 pointers into a slice of
// int64 values
func Int64ValueSlice(src []*int64) []int64 {
dst := make([]int64, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// Int64Map converts a string map of int64 values into a string
// map of int64 pointers
func Int64Map(src map[string]int64) map[string]*int64 {
dst := make(map[string]*int64)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// Int64ValueMap converts a string map of int64 pointers into a string
// map of int64 values
func Int64ValueMap(src map[string]*int64) map[string]int64 {
dst := make(map[string]int64)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Float64 returns a pointer to the float64 value passed in.
func Float64(v float64) *float64 {
return &v
}
// Float64Value returns the value of the float64 pointer passed in or
// 0 if the pointer is nil.
func Float64Value(v *float64) float64 {
if v != nil {
return *v
}
return 0
}
// Float64Slice converts a slice of float64 values into a slice of
// float64 pointers
func Float64Slice(src []float64) []*float64 {
dst := make([]*float64, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// Float64ValueSlice converts a slice of float64 pointers into a slice of
// float64 values
func Float64ValueSlice(src []*float64) []float64 {
dst := make([]float64, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// Float64Map converts a string map of float64 values into a string
// map of float64 pointers
func Float64Map(src map[string]float64) map[string]*float64 {
dst := make(map[string]*float64)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// Float64ValueMap converts a string map of float64 pointers into a string
// map of float64 values
func Float64ValueMap(src map[string]*float64) map[string]float64 {
dst := make(map[string]float64)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Time returns a pointer to the time.Time value passed in.
func Time(v time.Time) *time.Time {
return &v
}
// TimeValue returns the value of the time.Time pointer passed in or
// time.Time{} if the pointer is nil.
func TimeValue(v *time.Time) time.Time {
if v != nil {
return *v
}
return time.Time{}
}
// TimeUnixMilli returns a Unix timestamp in milliseconds from "January 1, 1970 UTC".
// The result is undefined if the Unix time cannot be represented by an int64.
// Which includes calling TimeUnixMilli on a zero Time is undefined.
//
// This utility is useful for service API's such as CloudWatch Logs which require
// their unix time values to be in milliseconds.
//
// See Go stdlib https://golang.org/pkg/time/#Time.UnixNano for more information.
func TimeUnixMilli(t time.Time) int64 {
return t.UnixNano() / int64(time.Millisecond/time.Nanosecond)
}
// TimeSlice converts a slice of time.Time values into a slice of
// time.Time pointers
func TimeSlice(src []time.Time) []*time.Time {
dst := make([]*time.Time, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// TimeValueSlice converts a slice of time.Time pointers into a slice of
// time.Time values
func TimeValueSlice(src []*time.Time) []time.Time {
dst := make([]time.Time, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// TimeMap converts a string map of time.Time values into a string
// map of time.Time pointers
func TimeMap(src map[string]time.Time) map[string]*time.Time {
dst := make(map[string]*time.Time)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// TimeValueMap converts a string map of time.Time pointers into a string
// map of time.Time values
func TimeValueMap(src map[string]*time.Time) map[string]time.Time {
dst := make(map[string]time.Time)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}

152
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go generated vendored Normal file
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package corehandlers
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"regexp"
"runtime"
"strconv"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// Interface for matching types which also have a Len method.
type lener interface {
Len() int
}
// BuildContentLengthHandler builds the content length of a request based on the body,
// or will use the HTTPRequest.Header's "Content-Length" if defined. If unable
// to determine request body length and no "Content-Length" was specified it will panic.
//
// The Content-Length will only be aded to the request if the length of the body
// is greater than 0. If the body is empty or the current `Content-Length`
// header is <= 0, the header will also be stripped.
var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLengthHandler", Fn: func(r *request.Request) {
var length int64
if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
length, _ = strconv.ParseInt(slength, 10, 64)
} else {
switch body := r.Body.(type) {
case nil:
length = 0
case lener:
length = int64(body.Len())
case io.Seeker:
r.BodyStart, _ = body.Seek(0, 1)
end, _ := body.Seek(0, 2)
body.Seek(r.BodyStart, 0) // make sure to seek back to original location
length = end - r.BodyStart
default:
panic("Cannot get length of body, must provide `ContentLength`")
}
}
if length > 0 {
r.HTTPRequest.ContentLength = length
r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length))
} else {
r.HTTPRequest.ContentLength = 0
r.HTTPRequest.Header.Del("Content-Length")
}
}}
// SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent.
var SDKVersionUserAgentHandler = request.NamedHandler{
Name: "core.SDKVersionUserAgentHandler",
Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion,
runtime.Version(), runtime.GOOS, runtime.GOARCH),
}
var reStatusCode = regexp.MustCompile(`^(\d{3})`)
// SendHandler is a request handler to send service request using HTTP client.
var SendHandler = request.NamedHandler{Name: "core.SendHandler", Fn: func(r *request.Request) {
var err error
r.HTTPResponse, err = r.Config.HTTPClient.Do(r.HTTPRequest)
if err != nil {
// Prevent leaking if an HTTPResponse was returned. Clean up
// the body.
if r.HTTPResponse != nil {
r.HTTPResponse.Body.Close()
}
// Capture the case where url.Error is returned for error processing
// response. e.g. 301 without location header comes back as string
// error and r.HTTPResponse is nil. Other url redirect errors will
// comeback in a similar method.
if e, ok := err.(*url.Error); ok && e.Err != nil {
if s := reStatusCode.FindStringSubmatch(e.Err.Error()); s != nil {
code, _ := strconv.ParseInt(s[1], 10, 64)
r.HTTPResponse = &http.Response{
StatusCode: int(code),
Status: http.StatusText(int(code)),
Body: ioutil.NopCloser(bytes.NewReader([]byte{})),
}
return
}
}
if r.HTTPResponse == nil {
// Add a dummy request response object to ensure the HTTPResponse
// value is consistent.
r.HTTPResponse = &http.Response{
StatusCode: int(0),
Status: http.StatusText(int(0)),
Body: ioutil.NopCloser(bytes.NewReader([]byte{})),
}
}
// Catch all other request errors.
r.Error = awserr.New("RequestError", "send request failed", err)
r.Retryable = aws.Bool(true) // network errors are retryable
}
}}
// ValidateResponseHandler is a request handler to validate service response.
var ValidateResponseHandler = request.NamedHandler{Name: "core.ValidateResponseHandler", Fn: func(r *request.Request) {
if r.HTTPResponse.StatusCode == 0 || r.HTTPResponse.StatusCode >= 300 {
// this may be replaced by an UnmarshalError handler
r.Error = awserr.New("UnknownError", "unknown error", nil)
}
}}
// AfterRetryHandler performs final checks to determine if the request should
// be retried and how long to delay.
var AfterRetryHandler = request.NamedHandler{Name: "core.AfterRetryHandler", Fn: func(r *request.Request) {
// If one of the other handlers already set the retry state
// we don't want to override it based on the service's state
if r.Retryable == nil {
r.Retryable = aws.Bool(r.ShouldRetry(r))
}
if r.WillRetry() {
r.RetryDelay = r.RetryRules(r)
r.Config.SleepDelay(r.RetryDelay)
// when the expired token exception occurs the credentials
// need to be expired locally so that the next request to
// get credentials will trigger a credentials refresh.
if r.IsErrorExpired() {
r.Config.Credentials.Expire()
}
r.RetryCount++
r.Error = nil
}
}}
// ValidateEndpointHandler is a request handler to validate a request had the
// appropriate Region and Endpoint set. Will set r.Error if the endpoint or
// region is not valid.
var ValidateEndpointHandler = request.NamedHandler{Name: "core.ValidateEndpointHandler", Fn: func(r *request.Request) {
if r.ClientInfo.SigningRegion == "" && aws.StringValue(r.Config.Region) == "" {
r.Error = aws.ErrMissingRegion
} else if r.ClientInfo.Endpoint == "" {
r.Error = aws.ErrMissingEndpoint
}
}}

17
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go generated vendored Normal file
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package corehandlers
import "github.com/aws/aws-sdk-go/aws/request"
// ValidateParametersHandler is a request handler to validate the input parameters.
// Validating parameters only has meaning if done prior to the request being sent.
var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) {
if !r.ParamsFilled() {
return
}
if v, ok := r.Params.(request.Validator); ok {
if err := v.Validate(); err != nil {
r.Error = err
}
}
}}

100
vendor/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go generated vendored Normal file
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package credentials
import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
var (
// ErrNoValidProvidersFoundInChain Is returned when there are no valid
// providers in the ChainProvider.
//
// This has been deprecated. For verbose error messaging set
// aws.Config.CredentialsChainVerboseErrors to true
//
// @readonly
ErrNoValidProvidersFoundInChain = awserr.New("NoCredentialProviders",
`no valid providers in chain. Deprecated.
For verbose messaging see aws.Config.CredentialsChainVerboseErrors`,
nil)
)
// A ChainProvider will search for a provider which returns credentials
// and cache that provider until Retrieve is called again.
//
// The ChainProvider provides a way of chaining multiple providers together
// which will pick the first available using priority order of the Providers
// in the list.
//
// If none of the Providers retrieve valid credentials Value, ChainProvider's
// Retrieve() will return the error ErrNoValidProvidersFoundInChain.
//
// If a Provider is found which returns valid credentials Value ChainProvider
// will cache that Provider for all calls to IsExpired(), until Retrieve is
// called again.
//
// Example of ChainProvider to be used with an EnvProvider and EC2RoleProvider.
// In this example EnvProvider will first check if any credentials are available
// vai the environment variables. If there are none ChainProvider will check
// the next Provider in the list, EC2RoleProvider in this case. If EC2RoleProvider
// does not return any credentials ChainProvider will return the error
// ErrNoValidProvidersFoundInChain
//
// creds := NewChainCredentials(
// []Provider{
// &EnvProvider{},
// &EC2RoleProvider{
// Client: ec2metadata.New(sess),
// },
// })
//
// // Usage of ChainCredentials with aws.Config
// svc := ec2.New(&aws.Config{Credentials: creds})
//
type ChainProvider struct {
Providers []Provider
curr Provider
VerboseErrors bool
}
// NewChainCredentials returns a pointer to a new Credentials object
// wrapping a chain of providers.
func NewChainCredentials(providers []Provider) *Credentials {
return NewCredentials(&ChainProvider{
Providers: append([]Provider{}, providers...),
})
}
// Retrieve returns the credentials value or error if no provider returned
// without error.
//
// If a provider is found it will be cached and any calls to IsExpired()
// will return the expired state of the cached provider.
func (c *ChainProvider) Retrieve() (Value, error) {
var errs []error
for _, p := range c.Providers {
creds, err := p.Retrieve()
if err == nil {
c.curr = p
return creds, nil
}
errs = append(errs, err)
}
c.curr = nil
var err error
err = ErrNoValidProvidersFoundInChain
if c.VerboseErrors {
err = awserr.NewBatchError("NoCredentialProviders", "no valid providers in chain", errs)
}
return Value{}, err
}
// IsExpired will returned the expired state of the currently cached provider
// if there is one. If there is no current provider, true will be returned.
func (c *ChainProvider) IsExpired() bool {
if c.curr != nil {
return c.curr.IsExpired()
}
return true
}

223
vendor/github.com/aws/aws-sdk-go/aws/credentials/credentials.go generated vendored Normal file
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// Package credentials provides credential retrieval and management
//
// The Credentials is the primary method of getting access to and managing
// credentials Values. Using dependency injection retrieval of the credential
// values is handled by a object which satisfies the Provider interface.
//
// By default the Credentials.Get() will cache the successful result of a
// Provider's Retrieve() until Provider.IsExpired() returns true. At which
// point Credentials will call Provider's Retrieve() to get new credential Value.
//
// The Provider is responsible for determining when credentials Value have expired.
// It is also important to note that Credentials will always call Retrieve the
// first time Credentials.Get() is called.
//
// Example of using the environment variable credentials.
//
// creds := NewEnvCredentials()
//
// // Retrieve the credentials value
// credValue, err := creds.Get()
// if err != nil {
// // handle error
// }
//
// Example of forcing credentials to expire and be refreshed on the next Get().
// This may be helpful to proactively expire credentials and refresh them sooner
// than they would naturally expire on their own.
//
// creds := NewCredentials(&EC2RoleProvider{})
// creds.Expire()
// credsValue, err := creds.Get()
// // New credentials will be retrieved instead of from cache.
//
//
// Custom Provider
//
// Each Provider built into this package also provides a helper method to generate
// a Credentials pointer setup with the provider. To use a custom Provider just
// create a type which satisfies the Provider interface and pass it to the
// NewCredentials method.
//
// type MyProvider struct{}
// func (m *MyProvider) Retrieve() (Value, error) {...}
// func (m *MyProvider) IsExpired() bool {...}
//
// creds := NewCredentials(&MyProvider{})
// credValue, err := creds.Get()
//
package credentials
import (
"sync"
"time"
)
// AnonymousCredentials is an empty Credential object that can be used as
// dummy placeholder credentials for requests that do not need signed.
//
// This Credentials can be used to configure a service to not sign requests
// when making service API calls. For example, when accessing public
// s3 buckets.
//
// svc := s3.New(&aws.Config{Credentials: AnonymousCredentials})
// // Access public S3 buckets.
//
// @readonly
var AnonymousCredentials = NewStaticCredentials("", "", "")
// A Value is the AWS credentials value for individual credential fields.
type Value struct {
// AWS Access key ID
AccessKeyID string
// AWS Secret Access Key
SecretAccessKey string
// AWS Session Token
SessionToken string
// Provider used to get credentials
ProviderName string
}
// A Provider is the interface for any component which will provide credentials
// Value. A provider is required to manage its own Expired state, and what to
// be expired means.
//
// The Provider should not need to implement its own mutexes, because
// that will be managed by Credentials.
type Provider interface {
// Refresh returns nil if it successfully retrieved the value.
// Error is returned if the value were not obtainable, or empty.
Retrieve() (Value, error)
// IsExpired returns if the credentials are no longer valid, and need
// to be retrieved.
IsExpired() bool
}
// A Expiry provides shared expiration logic to be used by credentials
// providers to implement expiry functionality.
//
// The best method to use this struct is as an anonymous field within the
// provider's struct.
//
// Example:
// type EC2RoleProvider struct {
// Expiry
// ...
// }
type Expiry struct {
// The date/time when to expire on
expiration time.Time
// If set will be used by IsExpired to determine the current time.
// Defaults to time.Now if CurrentTime is not set. Available for testing
// to be able to mock out the current time.
CurrentTime func() time.Time
}
// SetExpiration sets the expiration IsExpired will check when called.
//
// If window is greater than 0 the expiration time will be reduced by the
// window value.
//
// Using a window is helpful to trigger credentials to expire sooner than
// the expiration time given to ensure no requests are made with expired
// tokens.
func (e *Expiry) SetExpiration(expiration time.Time, window time.Duration) {
e.expiration = expiration
if window > 0 {
e.expiration = e.expiration.Add(-window)
}
}
// IsExpired returns if the credentials are expired.
func (e *Expiry) IsExpired() bool {
if e.CurrentTime == nil {
e.CurrentTime = time.Now
}
return e.expiration.Before(e.CurrentTime())
}
// A Credentials provides synchronous safe retrieval of AWS credentials Value.
// Credentials will cache the credentials value until they expire. Once the value
// expires the next Get will attempt to retrieve valid credentials.
//
// Credentials is safe to use across multiple goroutines and will manage the
// synchronous state so the Providers do not need to implement their own
// synchronization.
//
// The first Credentials.Get() will always call Provider.Retrieve() to get the
// first instance of the credentials Value. All calls to Get() after that
// will return the cached credentials Value until IsExpired() returns true.
type Credentials struct {
creds Value
forceRefresh bool
m sync.Mutex
provider Provider
}
// NewCredentials returns a pointer to a new Credentials with the provider set.
func NewCredentials(provider Provider) *Credentials {
return &Credentials{
provider: provider,
forceRefresh: true,
}
}
// Get returns the credentials value, or error if the credentials Value failed
// to be retrieved.
//
// Will return the cached credentials Value if it has not expired. If the
// credentials Value has expired the Provider's Retrieve() will be called
// to refresh the credentials.
//
// If Credentials.Expire() was called the credentials Value will be force
// expired, and the next call to Get() will cause them to be refreshed.
func (c *Credentials) Get() (Value, error) {
c.m.Lock()
defer c.m.Unlock()
if c.isExpired() {
creds, err := c.provider.Retrieve()
if err != nil {
return Value{}, err
}
c.creds = creds
c.forceRefresh = false
}
return c.creds, nil
}
// Expire expires the credentials and forces them to be retrieved on the
// next call to Get().
//
// This will override the Provider's expired state, and force Credentials
// to call the Provider's Retrieve().
func (c *Credentials) Expire() {
c.m.Lock()
defer c.m.Unlock()
c.forceRefresh = true
}
// IsExpired returns if the credentials are no longer valid, and need
// to be retrieved.
//
// If the Credentials were forced to be expired with Expire() this will
// reflect that override.
func (c *Credentials) IsExpired() bool {
c.m.Lock()
defer c.m.Unlock()
return c.isExpired()
}
// isExpired helper method wrapping the definition of expired credentials.
func (c *Credentials) isExpired() bool {
return c.forceRefresh || c.provider.IsExpired()
}

178
vendor/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go generated vendored Normal file
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package ec2rolecreds
import (
"bufio"
"encoding/json"
"fmt"
"path"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
)
// ProviderName provides a name of EC2Role provider
const ProviderName = "EC2RoleProvider"
// A EC2RoleProvider retrieves credentials from the EC2 service, and keeps track if
// those credentials are expired.
//
// Example how to configure the EC2RoleProvider with custom http Client, Endpoint
// or ExpiryWindow
//
// p := &ec2rolecreds.EC2RoleProvider{
// // Pass in a custom timeout to be used when requesting
// // IAM EC2 Role credentials.
// Client: ec2metadata.New(sess, aws.Config{
// HTTPClient: &http.Client{Timeout: 10 * time.Second},
// }),
//
// // Do not use early expiry of credentials. If a non zero value is
// // specified the credentials will be expired early
// ExpiryWindow: 0,
// }
type EC2RoleProvider struct {
credentials.Expiry
// Required EC2Metadata client to use when connecting to EC2 metadata service.
Client *ec2metadata.EC2Metadata
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewCredentials returns a pointer to a new Credentials object wrapping
// the EC2RoleProvider. Takes a ConfigProvider to create a EC2Metadata client.
// The ConfigProvider is satisfied by the session.Session type.
func NewCredentials(c client.ConfigProvider, options ...func(*EC2RoleProvider)) *credentials.Credentials {
p := &EC2RoleProvider{
Client: ec2metadata.New(c),
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping
// the EC2RoleProvider. Takes a EC2Metadata client to use when connecting to EC2
// metadata service.
func NewCredentialsWithClient(client *ec2metadata.EC2Metadata, options ...func(*EC2RoleProvider)) *credentials.Credentials {
p := &EC2RoleProvider{
Client: client,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// Retrieve retrieves credentials from the EC2 service.
// Error will be returned if the request fails, or unable to extract
// the desired credentials.
func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) {
credsList, err := requestCredList(m.Client)
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
if len(credsList) == 0 {
return credentials.Value{ProviderName: ProviderName}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil)
}
credsName := credsList[0]
roleCreds, err := requestCred(m.Client, credsName)
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
m.SetExpiration(roleCreds.Expiration, m.ExpiryWindow)
return credentials.Value{
AccessKeyID: roleCreds.AccessKeyID,
SecretAccessKey: roleCreds.SecretAccessKey,
SessionToken: roleCreds.Token,
ProviderName: ProviderName,
}, nil
}
// A ec2RoleCredRespBody provides the shape for unmarshalling credential
// request responses.
type ec2RoleCredRespBody struct {
// Success State
Expiration time.Time
AccessKeyID string
SecretAccessKey string
Token string
// Error state
Code string
Message string
}
const iamSecurityCredsPath = "/iam/security-credentials"
// requestCredList requests a list of credentials from the EC2 service.
// If there are no credentials, or there is an error making or receiving the request
func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) {
resp, err := client.GetMetadata(iamSecurityCredsPath)
if err != nil {
return nil, awserr.New("EC2RoleRequestError", "no EC2 instance role found", err)
}
credsList := []string{}
s := bufio.NewScanner(strings.NewReader(resp))
for s.Scan() {
credsList = append(credsList, s.Text())
}
if err := s.Err(); err != nil {
return nil, awserr.New("SerializationError", "failed to read EC2 instance role from metadata service", err)
}
return credsList, nil
}
// requestCred requests the credentials for a specific credentials from the EC2 service.
//
// If the credentials cannot be found, or there is an error reading the response
// and error will be returned.
func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCredRespBody, error) {
resp, err := client.GetMetadata(path.Join(iamSecurityCredsPath, credsName))
if err != nil {
return ec2RoleCredRespBody{},
awserr.New("EC2RoleRequestError",
fmt.Sprintf("failed to get %s EC2 instance role credentials", credsName),
err)
}
respCreds := ec2RoleCredRespBody{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&respCreds); err != nil {
return ec2RoleCredRespBody{},
awserr.New("SerializationError",
fmt.Sprintf("failed to decode %s EC2 instance role credentials", credsName),
err)
}
if respCreds.Code != "Success" {
// If an error code was returned something failed requesting the role.
return ec2RoleCredRespBody{}, awserr.New(respCreds.Code, respCreds.Message, nil)
}
return respCreds, nil
}

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vendor/github.com/aws/aws-sdk-go/aws/credentials/endpointcreds/provider.go generated vendored Normal file
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// Package endpointcreds provides support for retrieving credentials from an
// arbitrary HTTP endpoint.
//
// The credentials endpoint Provider can receive both static and refreshable
// credentials that will expire. Credentials are static when an "Expiration"
// value is not provided in the endpoint's response.
//
// Static credentials will never expire once they have been retrieved. The format
// of the static credentials response:
// {
// "AccessKeyId" : "MUA...",
// "SecretAccessKey" : "/7PC5om....",
// }
//
// Refreshable credentials will expire within the "ExpiryWindow" of the Expiration
// value in the response. The format of the refreshable credentials response:
// {
// "AccessKeyId" : "MUA...",
// "SecretAccessKey" : "/7PC5om....",
// "Token" : "AQoDY....=",
// "Expiration" : "2016-02-25T06:03:31Z"
// }
//
// Errors should be returned in the following format and only returned with 400
// or 500 HTTP status codes.
// {
// "code": "ErrorCode",
// "message": "Helpful error message."
// }
package endpointcreds
import (
"encoding/json"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
)
// ProviderName is the name of the credentials provider.
const ProviderName = `CredentialsEndpointProvider`
// Provider satisfies the credentials.Provider interface, and is a client to
// retrieve credentials from an arbitrary endpoint.
type Provider struct {
staticCreds bool
credentials.Expiry
// Requires a AWS Client to make HTTP requests to the endpoint with.
// the Endpoint the request will be made to is provided by the aws.Config's
// Endpoint value.
Client *client.Client
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewProviderClient returns a credentials Provider for retrieving AWS credentials
// from arbitrary endpoint.
func NewProviderClient(cfg aws.Config, handlers request.Handlers, endpoint string, options ...func(*Provider)) credentials.Provider {
p := &Provider{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: "CredentialsEndpoint",
Endpoint: endpoint,
},
handlers,
),
}
p.Client.Handlers.Unmarshal.PushBack(unmarshalHandler)
p.Client.Handlers.UnmarshalError.PushBack(unmarshalError)
p.Client.Handlers.Validate.Clear()
p.Client.Handlers.Validate.PushBack(validateEndpointHandler)
for _, option := range options {
option(p)
}
return p
}
// NewCredentialsClient returns a Credentials wrapper for retrieving credentials
// from an arbitrary endpoint concurrently. The client will request the
func NewCredentialsClient(cfg aws.Config, handlers request.Handlers, endpoint string, options ...func(*Provider)) *credentials.Credentials {
return credentials.NewCredentials(NewProviderClient(cfg, handlers, endpoint, options...))
}
// IsExpired returns true if the credentials retrieved are expired, or not yet
// retrieved.
func (p *Provider) IsExpired() bool {
if p.staticCreds {
return false
}
return p.Expiry.IsExpired()
}
// Retrieve will attempt to request the credentials from the endpoint the Provider
// was configured for. And error will be returned if the retrieval fails.
func (p *Provider) Retrieve() (credentials.Value, error) {
resp, err := p.getCredentials()
if err != nil {
return credentials.Value{ProviderName: ProviderName},
awserr.New("CredentialsEndpointError", "failed to load credentials", err)
}
if resp.Expiration != nil {
p.SetExpiration(*resp.Expiration, p.ExpiryWindow)
} else {
p.staticCreds = true
}
return credentials.Value{
AccessKeyID: resp.AccessKeyID,
SecretAccessKey: resp.SecretAccessKey,
SessionToken: resp.Token,
ProviderName: ProviderName,
}, nil
}
type getCredentialsOutput struct {
Expiration *time.Time
AccessKeyID string
SecretAccessKey string
Token string
}
type errorOutput struct {
Code string `json:"code"`
Message string `json:"message"`
}
func (p *Provider) getCredentials() (*getCredentialsOutput, error) {
op := &request.Operation{
Name: "GetCredentials",
HTTPMethod: "GET",
}
out := &getCredentialsOutput{}
req := p.Client.NewRequest(op, nil, out)
req.HTTPRequest.Header.Set("Accept", "application/json")
return out, req.Send()
}
func validateEndpointHandler(r *request.Request) {
if len(r.ClientInfo.Endpoint) == 0 {
r.Error = aws.ErrMissingEndpoint
}
}
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
out := r.Data.(*getCredentialsOutput)
if err := json.NewDecoder(r.HTTPResponse.Body).Decode(&out); err != nil {
r.Error = awserr.New("SerializationError",
"failed to decode endpoint credentials",
err,
)
}
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
var errOut errorOutput
if err := json.NewDecoder(r.HTTPResponse.Body).Decode(&errOut); err != nil {
r.Error = awserr.New("SerializationError",
"failed to decode endpoint credentials",
err,
)
}
// Response body format is not consistent between metadata endpoints.
// Grab the error message as a string and include that as the source error
r.Error = awserr.New(errOut.Code, errOut.Message, nil)
}

77
vendor/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go generated vendored Normal file
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package credentials
import (
"os"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// EnvProviderName provides a name of Env provider
const EnvProviderName = "EnvProvider"
var (
// ErrAccessKeyIDNotFound is returned when the AWS Access Key ID can't be
// found in the process's environment.
//
// @readonly
ErrAccessKeyIDNotFound = awserr.New("EnvAccessKeyNotFound", "AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY not found in environment", nil)
// ErrSecretAccessKeyNotFound is returned when the AWS Secret Access Key
// can't be found in the process's environment.
//
// @readonly
ErrSecretAccessKeyNotFound = awserr.New("EnvSecretNotFound", "AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY not found in environment", nil)
)
// A EnvProvider retrieves credentials from the environment variables of the
// running process. Environment credentials never expire.
//
// Environment variables used:
//
// * Access Key ID: AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY
// * Secret Access Key: AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY
type EnvProvider struct {
retrieved bool
}
// NewEnvCredentials returns a pointer to a new Credentials object
// wrapping the environment variable provider.
func NewEnvCredentials() *Credentials {
return NewCredentials(&EnvProvider{})
}
// Retrieve retrieves the keys from the environment.
func (e *EnvProvider) Retrieve() (Value, error) {
e.retrieved = false
id := os.Getenv("AWS_ACCESS_KEY_ID")
if id == "" {
id = os.Getenv("AWS_ACCESS_KEY")
}
secret := os.Getenv("AWS_SECRET_ACCESS_KEY")
if secret == "" {
secret = os.Getenv("AWS_SECRET_KEY")
}
if id == "" {
return Value{ProviderName: EnvProviderName}, ErrAccessKeyIDNotFound
}
if secret == "" {
return Value{ProviderName: EnvProviderName}, ErrSecretAccessKeyNotFound
}
e.retrieved = true
return Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: os.Getenv("AWS_SESSION_TOKEN"),
ProviderName: EnvProviderName,
}, nil
}
// IsExpired returns if the credentials have been retrieved.
func (e *EnvProvider) IsExpired() bool {
return !e.retrieved
}

12
vendor/github.com/aws/aws-sdk-go/aws/credentials/example.ini generated vendored Normal file
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[default]
aws_access_key_id = accessKey
aws_secret_access_key = secret
aws_session_token = token
[no_token]
aws_access_key_id = accessKey
aws_secret_access_key = secret
[with_colon]
aws_access_key_id: accessKey
aws_secret_access_key: secret

151
vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go generated vendored Normal file
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package credentials
import (
"fmt"
"os"
"path/filepath"
"github.com/go-ini/ini"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// SharedCredsProviderName provides a name of SharedCreds provider
const SharedCredsProviderName = "SharedCredentialsProvider"
var (
// ErrSharedCredentialsHomeNotFound is emitted when the user directory cannot be found.
//
// @readonly
ErrSharedCredentialsHomeNotFound = awserr.New("UserHomeNotFound", "user home directory not found.", nil)
)
// A SharedCredentialsProvider retrieves credentials from the current user's home
// directory, and keeps track if those credentials are expired.
//
// Profile ini file example: $HOME/.aws/credentials
type SharedCredentialsProvider struct {
// Path to the shared credentials file.
//
// If empty will look for "AWS_SHARED_CREDENTIALS_FILE" env variable. If the
// env value is empty will default to current user's home directory.
// Linux/OSX: "$HOME/.aws/credentials"
// Windows: "%USERPROFILE%\.aws\credentials"
Filename string
// AWS Profile to extract credentials from the shared credentials file. If empty
// will default to environment variable "AWS_PROFILE" or "default" if
// environment variable is also not set.
Profile string
// retrieved states if the credentials have been successfully retrieved.
retrieved bool
}
// NewSharedCredentials returns a pointer to a new Credentials object
// wrapping the Profile file provider.
func NewSharedCredentials(filename, profile string) *Credentials {
return NewCredentials(&SharedCredentialsProvider{
Filename: filename,
Profile: profile,
})
}
// Retrieve reads and extracts the shared credentials from the current
// users home directory.
func (p *SharedCredentialsProvider) Retrieve() (Value, error) {
p.retrieved = false
filename, err := p.filename()
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, err
}
creds, err := loadProfile(filename, p.profile())
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, err
}
p.retrieved = true
return creds, nil
}
// IsExpired returns if the shared credentials have expired.
func (p *SharedCredentialsProvider) IsExpired() bool {
return !p.retrieved
}
// loadProfiles loads from the file pointed to by shared credentials filename for profile.
// The credentials retrieved from the profile will be returned or error. Error will be
// returned if it fails to read from the file, or the data is invalid.
func loadProfile(filename, profile string) (Value, error) {
config, err := ini.Load(filename)
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err)
}
iniProfile, err := config.GetSection(profile)
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to get profile", err)
}
id, err := iniProfile.GetKey("aws_access_key_id")
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsAccessKey",
fmt.Sprintf("shared credentials %s in %s did not contain aws_access_key_id", profile, filename),
err)
}
secret, err := iniProfile.GetKey("aws_secret_access_key")
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsSecret",
fmt.Sprintf("shared credentials %s in %s did not contain aws_secret_access_key", profile, filename),
nil)
}
// Default to empty string if not found
token := iniProfile.Key("aws_session_token")
return Value{
AccessKeyID: id.String(),
SecretAccessKey: secret.String(),
SessionToken: token.String(),
ProviderName: SharedCredsProviderName,
}, nil
}
// filename returns the filename to use to read AWS shared credentials.
//
// Will return an error if the user's home directory path cannot be found.
func (p *SharedCredentialsProvider) filename() (string, error) {
if p.Filename == "" {
if p.Filename = os.Getenv("AWS_SHARED_CREDENTIALS_FILE"); p.Filename != "" {
return p.Filename, nil
}
homeDir := os.Getenv("HOME") // *nix
if homeDir == "" { // Windows
homeDir = os.Getenv("USERPROFILE")
}
if homeDir == "" {
return "", ErrSharedCredentialsHomeNotFound
}
p.Filename = filepath.Join(homeDir, ".aws", "credentials")
}
return p.Filename, nil
}
// profile returns the AWS shared credentials profile. If empty will read
// environment variable "AWS_PROFILE". If that is not set profile will
// return "default".
func (p *SharedCredentialsProvider) profile() string {
if p.Profile == "" {
p.Profile = os.Getenv("AWS_PROFILE")
}
if p.Profile == "" {
p.Profile = "default"
}
return p.Profile
}

57
vendor/github.com/aws/aws-sdk-go/aws/credentials/static_provider.go generated vendored Normal file
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package credentials
import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
// StaticProviderName provides a name of Static provider
const StaticProviderName = "StaticProvider"
var (
// ErrStaticCredentialsEmpty is emitted when static credentials are empty.
//
// @readonly
ErrStaticCredentialsEmpty = awserr.New("EmptyStaticCreds", "static credentials are empty", nil)
)
// A StaticProvider is a set of credentials which are set programmatically,
// and will never expire.
type StaticProvider struct {
Value
}
// NewStaticCredentials returns a pointer to a new Credentials object
// wrapping a static credentials value provider.
func NewStaticCredentials(id, secret, token string) *Credentials {
return NewCredentials(&StaticProvider{Value: Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: token,
}})
}
// NewStaticCredentialsFromCreds returns a pointer to a new Credentials object
// wrapping the static credentials value provide. Same as NewStaticCredentials
// but takes the creds Value instead of individual fields
func NewStaticCredentialsFromCreds(creds Value) *Credentials {
return NewCredentials(&StaticProvider{Value: creds})
}
// Retrieve returns the credentials or error if the credentials are invalid.
func (s *StaticProvider) Retrieve() (Value, error) {
if s.AccessKeyID == "" || s.SecretAccessKey == "" {
return Value{ProviderName: StaticProviderName}, ErrStaticCredentialsEmpty
}
if len(s.Value.ProviderName) == 0 {
s.Value.ProviderName = StaticProviderName
}
return s.Value, nil
}
// IsExpired returns if the credentials are expired.
//
// For StaticProvider, the credentials never expired.
func (s *StaticProvider) IsExpired() bool {
return false
}

161
vendor/github.com/aws/aws-sdk-go/aws/credentials/stscreds/assume_role_provider.go generated vendored Normal file
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// Package stscreds are credential Providers to retrieve STS AWS credentials.
//
// STS provides multiple ways to retrieve credentials which can be used when making
// future AWS service API operation calls.
package stscreds
import (
"fmt"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/service/sts"
)
// ProviderName provides a name of AssumeRole provider
const ProviderName = "AssumeRoleProvider"
// AssumeRoler represents the minimal subset of the STS client API used by this provider.
type AssumeRoler interface {
AssumeRole(input *sts.AssumeRoleInput) (*sts.AssumeRoleOutput, error)
}
// DefaultDuration is the default amount of time in minutes that the credentials
// will be valid for.
var DefaultDuration = time.Duration(15) * time.Minute
// AssumeRoleProvider retrieves temporary credentials from the STS service, and
// keeps track of their expiration time. This provider must be used explicitly,
// as it is not included in the credentials chain.
type AssumeRoleProvider struct {
credentials.Expiry
// STS client to make assume role request with.
Client AssumeRoler
// Role to be assumed.
RoleARN string
// Session name, if you wish to reuse the credentials elsewhere.
RoleSessionName string
// Expiry duration of the STS credentials. Defaults to 15 minutes if not set.
Duration time.Duration
// Optional ExternalID to pass along, defaults to nil if not set.
ExternalID *string
// The policy plain text must be 2048 bytes or shorter. However, an internal
// conversion compresses it into a packed binary format with a separate limit.
// The PackedPolicySize response element indicates by percentage how close to
// the upper size limit the policy is, with 100% equaling the maximum allowed
// size.
Policy *string
// The identification number of the MFA device that is associated with the user
// who is making the AssumeRole call. Specify this value if the trust policy
// of the role being assumed includes a condition that requires MFA authentication.
// The value is either the serial number for a hardware device (such as GAHT12345678)
// or an Amazon Resource Name (ARN) for a virtual device (such as arn:aws:iam::123456789012:mfa/user).
SerialNumber *string
// The value provided by the MFA device, if the trust policy of the role being
// assumed requires MFA (that is, if the policy includes a condition that tests
// for MFA). If the role being assumed requires MFA and if the TokenCode value
// is missing or expired, the AssumeRole call returns an "access denied" error.
TokenCode *string
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewCredentials returns a pointer to a new Credentials object wrapping the
// AssumeRoleProvider. The credentials will expire every 15 minutes and the
// role will be named after a nanosecond timestamp of this operation.
//
// Takes a Config provider to create the STS client. The ConfigProvider is
// satisfied by the session.Session type.
func NewCredentials(c client.ConfigProvider, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials {
p := &AssumeRoleProvider{
Client: sts.New(c),
RoleARN: roleARN,
Duration: DefaultDuration,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping the
// AssumeRoleProvider. The credentials will expire every 15 minutes and the
// role will be named after a nanosecond timestamp of this operation.
//
// Takes an AssumeRoler which can be satisfiede by the STS client.
func NewCredentialsWithClient(svc AssumeRoler, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials {
p := &AssumeRoleProvider{
Client: svc,
RoleARN: roleARN,
Duration: DefaultDuration,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// Retrieve generates a new set of temporary credentials using STS.
func (p *AssumeRoleProvider) Retrieve() (credentials.Value, error) {
// Apply defaults where parameters are not set.
if p.RoleSessionName == "" {
// Try to work out a role name that will hopefully end up unique.
p.RoleSessionName = fmt.Sprintf("%d", time.Now().UTC().UnixNano())
}
if p.Duration == 0 {
// Expire as often as AWS permits.
p.Duration = DefaultDuration
}
input := &sts.AssumeRoleInput{
DurationSeconds: aws.Int64(int64(p.Duration / time.Second)),
RoleArn: aws.String(p.RoleARN),
RoleSessionName: aws.String(p.RoleSessionName),
ExternalId: p.ExternalID,
}
if p.Policy != nil {
input.Policy = p.Policy
}
if p.SerialNumber != nil && p.TokenCode != nil {
input.SerialNumber = p.SerialNumber
input.TokenCode = p.TokenCode
}
roleOutput, err := p.Client.AssumeRole(input)
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
// We will proactively generate new credentials before they expire.
p.SetExpiration(*roleOutput.Credentials.Expiration, p.ExpiryWindow)
return credentials.Value{
AccessKeyID: *roleOutput.Credentials.AccessKeyId,
SecretAccessKey: *roleOutput.Credentials.SecretAccessKey,
SessionToken: *roleOutput.Credentials.SessionToken,
ProviderName: ProviderName,
}, nil
}

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// Package defaults is a collection of helpers to retrieve the SDK's default
// configuration and handlers.
//
// Generally this package shouldn't be used directly, but session.Session
// instead. This package is useful when you need to reset the defaults
// of a session or service client to the SDK defaults before setting
// additional parameters.
package defaults
import (
"fmt"
"net/http"
"os"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/corehandlers"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
"github.com/aws/aws-sdk-go/aws/credentials/endpointcreds"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/endpoints"
)
// A Defaults provides a collection of default values for SDK clients.
type Defaults struct {
Config *aws.Config
Handlers request.Handlers
}
// Get returns the SDK's default values with Config and handlers pre-configured.
func Get() Defaults {
cfg := Config()
handlers := Handlers()
cfg.Credentials = CredChain(cfg, handlers)
return Defaults{
Config: cfg,
Handlers: handlers,
}
}
// Config returns the default configuration without credentials.
// To retrieve a config with credentials also included use
// `defaults.Get().Config` instead.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the configuration of an
// existing service client or session.
func Config() *aws.Config {
return aws.NewConfig().
WithCredentials(credentials.AnonymousCredentials).
WithRegion(os.Getenv("AWS_REGION")).
WithHTTPClient(http.DefaultClient).
WithMaxRetries(aws.UseServiceDefaultRetries).
WithLogger(aws.NewDefaultLogger()).
WithLogLevel(aws.LogOff).
WithSleepDelay(time.Sleep)
}
// Handlers returns the default request handlers.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the request handlers of an
// existing service client or session.
func Handlers() request.Handlers {
var handlers request.Handlers
handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
handlers.Validate.AfterEachFn = request.HandlerListStopOnError
handlers.Build.PushBackNamed(corehandlers.SDKVersionUserAgentHandler)
handlers.Build.AfterEachFn = request.HandlerListStopOnError
handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler)
handlers.Send.PushBackNamed(corehandlers.SendHandler)
handlers.AfterRetry.PushBackNamed(corehandlers.AfterRetryHandler)
handlers.ValidateResponse.PushBackNamed(corehandlers.ValidateResponseHandler)
return handlers
}
// CredChain returns the default credential chain.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the credentials of an
// existing service client or session's Config.
func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials {
return credentials.NewCredentials(&credentials.ChainProvider{
VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors),
Providers: []credentials.Provider{
&credentials.EnvProvider{},
&credentials.SharedCredentialsProvider{Filename: "", Profile: ""},
RemoteCredProvider(*cfg, handlers),
},
})
}
// RemoteCredProvider returns a credenitials provider for the default remote
// endpoints such as EC2 or ECS Roles.
func RemoteCredProvider(cfg aws.Config, handlers request.Handlers) credentials.Provider {
ecsCredURI := os.Getenv("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI")
if len(ecsCredURI) > 0 {
return ecsCredProvider(cfg, handlers, ecsCredURI)
}
return ec2RoleProvider(cfg, handlers)
}
func ecsCredProvider(cfg aws.Config, handlers request.Handlers, uri string) credentials.Provider {
const host = `169.254.170.2`
return endpointcreds.NewProviderClient(cfg, handlers,
fmt.Sprintf("http://%s%s", host, uri),
func(p *endpointcreds.Provider) {
p.ExpiryWindow = 5 * time.Minute
},
)
}
func ec2RoleProvider(cfg aws.Config, handlers request.Handlers) credentials.Provider {
endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName,
aws.StringValue(cfg.Region), true, false)
return &ec2rolecreds.EC2RoleProvider{
Client: ec2metadata.NewClient(cfg, handlers, endpoint, signingRegion),
ExpiryWindow: 5 * time.Minute,
}
}

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package ec2metadata
import (
"encoding/json"
"fmt"
"path"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// GetMetadata uses the path provided to request information from the EC2
// instance metdata service. The content will be returned as a string, or
// error if the request failed.
func (c *EC2Metadata) GetMetadata(p string) (string, error) {
op := &request.Operation{
Name: "GetMetadata",
HTTPMethod: "GET",
HTTPPath: path.Join("/", "meta-data", p),
}
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
}
// GetDynamicData uses the path provided to request information from the EC2
// instance metadata service for dynamic data. The content will be returned
// as a string, or error if the request failed.
func (c *EC2Metadata) GetDynamicData(p string) (string, error) {
op := &request.Operation{
Name: "GetDynamicData",
HTTPMethod: "GET",
HTTPPath: path.Join("/", "dynamic", p),
}
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
}
// GetInstanceIdentityDocument retrieves an identity document describing an
// instance. Error is returned if the request fails or is unable to parse
// the response.
func (c *EC2Metadata) GetInstanceIdentityDocument() (EC2InstanceIdentityDocument, error) {
resp, err := c.GetDynamicData("instance-identity/document")
if err != nil {
return EC2InstanceIdentityDocument{},
awserr.New("EC2MetadataRequestError",
"failed to get EC2 instance identity document", err)
}
doc := EC2InstanceIdentityDocument{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&doc); err != nil {
return EC2InstanceIdentityDocument{},
awserr.New("SerializationError",
"failed to decode EC2 instance identity document", err)
}
return doc, nil
}
// IAMInfo retrieves IAM info from the metadata API
func (c *EC2Metadata) IAMInfo() (EC2IAMInfo, error) {
resp, err := c.GetMetadata("iam/info")
if err != nil {
return EC2IAMInfo{},
awserr.New("EC2MetadataRequestError",
"failed to get EC2 IAM info", err)
}
info := EC2IAMInfo{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&info); err != nil {
return EC2IAMInfo{},
awserr.New("SerializationError",
"failed to decode EC2 IAM info", err)
}
if info.Code != "Success" {
errMsg := fmt.Sprintf("failed to get EC2 IAM Info (%s)", info.Code)
return EC2IAMInfo{},
awserr.New("EC2MetadataError", errMsg, nil)
}
return info, nil
}
// Region returns the region the instance is running in.
func (c *EC2Metadata) Region() (string, error) {
resp, err := c.GetMetadata("placement/availability-zone")
if err != nil {
return "", err
}
// returns region without the suffix. Eg: us-west-2a becomes us-west-2
return resp[:len(resp)-1], nil
}
// Available returns if the application has access to the EC2 Metadata service.
// Can be used to determine if application is running within an EC2 Instance and
// the metadata service is available.
func (c *EC2Metadata) Available() bool {
if _, err := c.GetMetadata("instance-id"); err != nil {
return false
}
return true
}
// An EC2IAMInfo provides the shape for unmarshalling
// an IAM info from the metadata API
type EC2IAMInfo struct {
Code string
LastUpdated time.Time
InstanceProfileArn string
InstanceProfileID string
}
// An EC2InstanceIdentityDocument provides the shape for unmarshalling
// an instance identity document
type EC2InstanceIdentityDocument struct {
DevpayProductCodes []string `json:"devpayProductCodes"`
AvailabilityZone string `json:"availabilityZone"`
PrivateIP string `json:"privateIp"`
Version string `json:"version"`
Region string `json:"region"`
InstanceID string `json:"instanceId"`
BillingProducts []string `json:"billingProducts"`
InstanceType string `json:"instanceType"`
AccountID string `json:"accountId"`
PendingTime time.Time `json:"pendingTime"`
ImageID string `json:"imageId"`
KernelID string `json:"kernelId"`
RamdiskID string `json:"ramdiskId"`
Architecture string `json:"architecture"`
}

124
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go generated vendored Normal file
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// Package ec2metadata provides the client for making API calls to the
// EC2 Metadata service.
package ec2metadata
import (
"bytes"
"errors"
"io"
"net/http"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
)
// ServiceName is the name of the service.
const ServiceName = "ec2metadata"
// A EC2Metadata is an EC2 Metadata service Client.
type EC2Metadata struct {
*client.Client
}
// New creates a new instance of the EC2Metadata client with a session.
// This client is safe to use across multiple goroutines.
//
//
// Example:
// // Create a EC2Metadata client from just a session.
// svc := ec2metadata.New(mySession)
//
// // Create a EC2Metadata client with additional configuration
// svc := ec2metadata.New(mySession, aws.NewConfig().WithLogLevel(aws.LogDebugHTTPBody))
func New(p client.ConfigProvider, cfgs ...*aws.Config) *EC2Metadata {
c := p.ClientConfig(ServiceName, cfgs...)
return NewClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion)
}
// NewClient returns a new EC2Metadata client. Should be used to create
// a client when not using a session. Generally using just New with a session
// is preferred.
//
// If an unmodified HTTP client is provided from the stdlib default, or no client
// the EC2RoleProvider's EC2Metadata HTTP client's timeout will be shortened.
// To disable this set Config.EC2MetadataDisableTimeoutOverride to false. Enabled by default.
func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion string, opts ...func(*client.Client)) *EC2Metadata {
if !aws.BoolValue(cfg.EC2MetadataDisableTimeoutOverride) && httpClientZero(cfg.HTTPClient) {
// If the http client is unmodified and this feature is not disabled
// set custom timeouts for EC2Metadata requests.
cfg.HTTPClient = &http.Client{
// use a shorter timeout than default because the metadata
// service is local if it is running, and to fail faster
// if not running on an ec2 instance.
Timeout: 5 * time.Second,
}
}
svc := &EC2Metadata{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: ServiceName,
Endpoint: endpoint,
APIVersion: "latest",
},
handlers,
),
}
svc.Handlers.Unmarshal.PushBack(unmarshalHandler)
svc.Handlers.UnmarshalError.PushBack(unmarshalError)
svc.Handlers.Validate.Clear()
svc.Handlers.Validate.PushBack(validateEndpointHandler)
// Add additional options to the service config
for _, option := range opts {
option(svc.Client)
}
return svc
}
func httpClientZero(c *http.Client) bool {
return c == nil || (c.Transport == nil && c.CheckRedirect == nil && c.Jar == nil && c.Timeout == 0)
}
type metadataOutput struct {
Content string
}
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata respose", err)
return
}
if data, ok := r.Data.(*metadataOutput); ok {
data.Content = b.String()
}
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata error respose", err)
return
}
// Response body format is not consistent between metadata endpoints.
// Grab the error message as a string and include that as the source error
r.Error = awserr.New("EC2MetadataError", "failed to make EC2Metadata request", errors.New(b.String()))
}
func validateEndpointHandler(r *request.Request) {
if r.ClientInfo.Endpoint == "" {
r.Error = aws.ErrMissingEndpoint
}
}

17
vendor/github.com/aws/aws-sdk-go/aws/errors.go generated vendored Normal file
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package aws
import "github.com/aws/aws-sdk-go/aws/awserr"
var (
// ErrMissingRegion is an error that is returned if region configuration is
// not found.
//
// @readonly
ErrMissingRegion = awserr.New("MissingRegion", "could not find region configuration", nil)
// ErrMissingEndpoint is an error that is returned if an endpoint cannot be
// resolved for a service.
//
// @readonly
ErrMissingEndpoint = awserr.New("MissingEndpoint", "'Endpoint' configuration is required for this service", nil)
)

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package aws
import (
"log"
"os"
)
// A LogLevelType defines the level logging should be performed at. Used to instruct
// the SDK which statements should be logged.
type LogLevelType uint
// LogLevel returns the pointer to a LogLevel. Should be used to workaround
// not being able to take the address of a non-composite literal.
func LogLevel(l LogLevelType) *LogLevelType {
return &l
}
// Value returns the LogLevel value or the default value LogOff if the LogLevel
// is nil. Safe to use on nil value LogLevelTypes.
func (l *LogLevelType) Value() LogLevelType {
if l != nil {
return *l
}
return LogOff
}
// Matches returns true if the v LogLevel is enabled by this LogLevel. Should be
// used with logging sub levels. Is safe to use on nil value LogLevelTypes. If
// LogLevel is nill, will default to LogOff comparison.
func (l *LogLevelType) Matches(v LogLevelType) bool {
c := l.Value()
return c&v == v
}
// AtLeast returns true if this LogLevel is at least high enough to satisfies v.
// Is safe to use on nil value LogLevelTypes. If LogLevel is nill, will default
// to LogOff comparison.
func (l *LogLevelType) AtLeast(v LogLevelType) bool {
c := l.Value()
return c >= v
}
const (
// LogOff states that no logging should be performed by the SDK. This is the
// default state of the SDK, and should be use to disable all logging.
LogOff LogLevelType = iota * 0x1000
// LogDebug state that debug output should be logged by the SDK. This should
// be used to inspect request made and responses received.
LogDebug
)
// Debug Logging Sub Levels
const (
// LogDebugWithSigning states that the SDK should log request signing and
// presigning events. This should be used to log the signing details of
// requests for debugging. Will also enable LogDebug.
LogDebugWithSigning LogLevelType = LogDebug | (1 << iota)
// LogDebugWithHTTPBody states the SDK should log HTTP request and response
// HTTP bodys in addition to the headers and path. This should be used to
// see the body content of requests and responses made while using the SDK
// Will also enable LogDebug.
LogDebugWithHTTPBody
// LogDebugWithRequestRetries states the SDK should log when service requests will
// be retried. This should be used to log when you want to log when service
// requests are being retried. Will also enable LogDebug.
LogDebugWithRequestRetries
// LogDebugWithRequestErrors states the SDK should log when service requests fail
// to build, send, validate, or unmarshal.
LogDebugWithRequestErrors
)
// A Logger is a minimalistic interface for the SDK to log messages to. Should
// be used to provide custom logging writers for the SDK to use.
type Logger interface {
Log(...interface{})
}
// A LoggerFunc is a convenience type to convert a function taking a variadic
// list of arguments and wrap it so the Logger interface can be used.
//
// Example:
// s3.New(sess, &aws.Config{Logger: aws.LoggerFunc(func(args ...interface{}) {
// fmt.Fprintln(os.Stdout, args...)
// })})
type LoggerFunc func(...interface{})
// Log calls the wrapped function with the arguments provided
func (f LoggerFunc) Log(args ...interface{}) {
f(args...)
}
// NewDefaultLogger returns a Logger which will write log messages to stdout, and
// use same formatting runes as the stdlib log.Logger
func NewDefaultLogger() Logger {
return &defaultLogger{
logger: log.New(os.Stdout, "", log.LstdFlags),
}
}
// A defaultLogger provides a minimalistic logger satisfying the Logger interface.
type defaultLogger struct {
logger *log.Logger
}
// Log logs the parameters to the stdlib logger. See log.Println.
func (l defaultLogger) Log(args ...interface{}) {
l.logger.Println(args...)
}

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vendor/github.com/aws/aws-sdk-go/aws/request/handlers.go generated vendored Normal file
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package request
import (
"fmt"
"strings"
)
// A Handlers provides a collection of request handlers for various
// stages of handling requests.
type Handlers struct {
Validate HandlerList
Build HandlerList
Sign HandlerList
Send HandlerList
ValidateResponse HandlerList
Unmarshal HandlerList
UnmarshalMeta HandlerList
UnmarshalError HandlerList
Retry HandlerList
AfterRetry HandlerList
}
// Copy returns of this handler's lists.
func (h *Handlers) Copy() Handlers {
return Handlers{
Validate: h.Validate.copy(),
Build: h.Build.copy(),
Sign: h.Sign.copy(),
Send: h.Send.copy(),
ValidateResponse: h.ValidateResponse.copy(),
Unmarshal: h.Unmarshal.copy(),
UnmarshalError: h.UnmarshalError.copy(),
UnmarshalMeta: h.UnmarshalMeta.copy(),
Retry: h.Retry.copy(),
AfterRetry: h.AfterRetry.copy(),
}
}
// Clear removes callback functions for all handlers
func (h *Handlers) Clear() {
h.Validate.Clear()
h.Build.Clear()
h.Send.Clear()
h.Sign.Clear()
h.Unmarshal.Clear()
h.UnmarshalMeta.Clear()
h.UnmarshalError.Clear()
h.ValidateResponse.Clear()
h.Retry.Clear()
h.AfterRetry.Clear()
}
// A HandlerListRunItem represents an entry in the HandlerList which
// is being run.
type HandlerListRunItem struct {
Index int
Handler NamedHandler
Request *Request
}
// A HandlerList manages zero or more handlers in a list.
type HandlerList struct {
list []NamedHandler
// Called after each request handler in the list is called. If set
// and the func returns true the HandlerList will continue to iterate
// over the request handlers. If false is returned the HandlerList
// will stop iterating.
//
// Should be used if extra logic to be performed between each handler
// in the list. This can be used to terminate a list's iteration
// based on a condition such as error like, HandlerListStopOnError.
// Or for logging like HandlerListLogItem.
AfterEachFn func(item HandlerListRunItem) bool
}
// A NamedHandler is a struct that contains a name and function callback.
type NamedHandler struct {
Name string
Fn func(*Request)
}
// copy creates a copy of the handler list.
func (l *HandlerList) copy() HandlerList {
n := HandlerList{
AfterEachFn: l.AfterEachFn,
}
n.list = append([]NamedHandler{}, l.list...)
return n
}
// Clear clears the handler list.
func (l *HandlerList) Clear() {
l.list = []NamedHandler{}
}
// Len returns the number of handlers in the list.
func (l *HandlerList) Len() int {
return len(l.list)
}
// PushBack pushes handler f to the back of the handler list.
func (l *HandlerList) PushBack(f func(*Request)) {
l.list = append(l.list, NamedHandler{"__anonymous", f})
}
// PushFront pushes handler f to the front of the handler list.
func (l *HandlerList) PushFront(f func(*Request)) {
l.list = append([]NamedHandler{{"__anonymous", f}}, l.list...)
}
// PushBackNamed pushes named handler f to the back of the handler list.
func (l *HandlerList) PushBackNamed(n NamedHandler) {
l.list = append(l.list, n)
}
// PushFrontNamed pushes named handler f to the front of the handler list.
func (l *HandlerList) PushFrontNamed(n NamedHandler) {
l.list = append([]NamedHandler{n}, l.list...)
}
// Remove removes a NamedHandler n
func (l *HandlerList) Remove(n NamedHandler) {
newlist := []NamedHandler{}
for _, m := range l.list {
if m.Name != n.Name {
newlist = append(newlist, m)
}
}
l.list = newlist
}
// Run executes all handlers in the list with a given request object.
func (l *HandlerList) Run(r *Request) {
for i, h := range l.list {
h.Fn(r)
item := HandlerListRunItem{
Index: i, Handler: h, Request: r,
}
if l.AfterEachFn != nil && !l.AfterEachFn(item) {
return
}
}
}
// HandlerListLogItem logs the request handler and the state of the
// request's Error value. Always returns true to continue iterating
// request handlers in a HandlerList.
func HandlerListLogItem(item HandlerListRunItem) bool {
if item.Request.Config.Logger == nil {
return true
}
item.Request.Config.Logger.Log("DEBUG: RequestHandler",
item.Index, item.Handler.Name, item.Request.Error)
return true
}
// HandlerListStopOnError returns false to stop the HandlerList iterating
// over request handlers if Request.Error is not nil. True otherwise
// to continue iterating.
func HandlerListStopOnError(item HandlerListRunItem) bool {
return item.Request.Error == nil
}
// MakeAddToUserAgentHandler will add the name/version pair to the User-Agent request
// header. If the extra parameters are provided they will be added as metadata to the
// name/version pair resulting in the following format.
// "name/version (extra0; extra1; ...)"
// The user agent part will be concatenated with this current request's user agent string.
func MakeAddToUserAgentHandler(name, version string, extra ...string) func(*Request) {
ua := fmt.Sprintf("%s/%s", name, version)
if len(extra) > 0 {
ua += fmt.Sprintf(" (%s)", strings.Join(extra, "; "))
}
return func(r *Request) {
AddToUserAgent(r, ua)
}
}
// MakeAddToUserAgentFreeFormHandler adds the input to the User-Agent request header.
// The input string will be concatenated with the current request's user agent string.
func MakeAddToUserAgentFreeFormHandler(s string) func(*Request) {
return func(r *Request) {
AddToUserAgent(r, s)
}
}

24
vendor/github.com/aws/aws-sdk-go/aws/request/http_request.go generated vendored Normal file
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package request
import (
"io"
"net/http"
"net/url"
)
func copyHTTPRequest(r *http.Request, body io.ReadCloser) *http.Request {
req := new(http.Request)
*req = *r
req.URL = &url.URL{}
*req.URL = *r.URL
req.Body = body
req.Header = http.Header{}
for k, v := range r.Header {
for _, vv := range v {
req.Header.Add(k, vv)
}
}
return req
}

49
vendor/github.com/aws/aws-sdk-go/aws/request/offset_reader.go generated vendored Normal file
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package request
import (
"io"
"sync"
)
// offsetReader is a thread-safe io.ReadCloser to prevent racing
// with retrying requests
type offsetReader struct {
buf io.ReadSeeker
lock sync.RWMutex
closed bool
}
func newOffsetReader(buf io.ReadSeeker, offset int64) *offsetReader {
reader := &offsetReader{}
buf.Seek(offset, 0)
reader.buf = buf
return reader
}
// Close is a thread-safe close. Uses the write lock.
func (o *offsetReader) Close() error {
o.lock.Lock()
defer o.lock.Unlock()
o.closed = true
return nil
}
// Read is a thread-safe read using a read lock.
func (o *offsetReader) Read(p []byte) (int, error) {
o.lock.RLock()
defer o.lock.RUnlock()
if o.closed {
return 0, io.EOF
}
return o.buf.Read(p)
}
// CloseAndCopy will return a new offsetReader with a copy of the old buffer
// and close the old buffer.
func (o *offsetReader) CloseAndCopy(offset int64) *offsetReader {
o.Close()
return newOffsetReader(o.buf, offset)
}

326
vendor/github.com/aws/aws-sdk-go/aws/request/request.go generated vendored Normal file
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package request
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client/metadata"
)
// A Request is the service request to be made.
type Request struct {
Config aws.Config
ClientInfo metadata.ClientInfo
Handlers Handlers
Retryer
Time time.Time
ExpireTime time.Duration
Operation *Operation
HTTPRequest *http.Request
HTTPResponse *http.Response
Body io.ReadSeeker
BodyStart int64 // offset from beginning of Body that the request body starts
Params interface{}
Error error
Data interface{}
RequestID string
RetryCount int
Retryable *bool
RetryDelay time.Duration
NotHoist bool
SignedHeaderVals http.Header
LastSignedAt time.Time
built bool
}
// An Operation is the service API operation to be made.
type Operation struct {
Name string
HTTPMethod string
HTTPPath string
*Paginator
}
// Paginator keeps track of pagination configuration for an API operation.
type Paginator struct {
InputTokens []string
OutputTokens []string
LimitToken string
TruncationToken string
}
// New returns a new Request pointer for the service API
// operation and parameters.
//
// Params is any value of input parameters to be the request payload.
// Data is pointer value to an object which the request's response
// payload will be deserialized to.
func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers,
retryer Retryer, operation *Operation, params interface{}, data interface{}) *Request {
method := operation.HTTPMethod
if method == "" {
method = "POST"
}
httpReq, _ := http.NewRequest(method, "", nil)
var err error
httpReq.URL, err = url.Parse(clientInfo.Endpoint + operation.HTTPPath)
if err != nil {
httpReq.URL = &url.URL{}
err = awserr.New("InvalidEndpointURL", "invalid endpoint uri", err)
}
r := &Request{
Config: cfg,
ClientInfo: clientInfo,
Handlers: handlers.Copy(),
Retryer: retryer,
Time: time.Now(),
ExpireTime: 0,
Operation: operation,
HTTPRequest: httpReq,
Body: nil,
Params: params,
Error: err,
Data: data,
}
r.SetBufferBody([]byte{})
return r
}
// WillRetry returns if the request's can be retried.
func (r *Request) WillRetry() bool {
return r.Error != nil && aws.BoolValue(r.Retryable) && r.RetryCount < r.MaxRetries()
}
// ParamsFilled returns if the request's parameters have been populated
// and the parameters are valid. False is returned if no parameters are
// provided or invalid.
func (r *Request) ParamsFilled() bool {
return r.Params != nil && reflect.ValueOf(r.Params).Elem().IsValid()
}
// DataFilled returns true if the request's data for response deserialization
// target has been set and is a valid. False is returned if data is not
// set, or is invalid.
func (r *Request) DataFilled() bool {
return r.Data != nil && reflect.ValueOf(r.Data).Elem().IsValid()
}
// SetBufferBody will set the request's body bytes that will be sent to
// the service API.
func (r *Request) SetBufferBody(buf []byte) {
r.SetReaderBody(bytes.NewReader(buf))
}
// SetStringBody sets the body of the request to be backed by a string.
func (r *Request) SetStringBody(s string) {
r.SetReaderBody(strings.NewReader(s))
}
// SetReaderBody will set the request's body reader.
func (r *Request) SetReaderBody(reader io.ReadSeeker) {
r.HTTPRequest.Body = newOffsetReader(reader, 0)
r.Body = reader
}
// Presign returns the request's signed URL. Error will be returned
// if the signing fails.
func (r *Request) Presign(expireTime time.Duration) (string, error) {
r.ExpireTime = expireTime
r.NotHoist = false
r.Sign()
if r.Error != nil {
return "", r.Error
}
return r.HTTPRequest.URL.String(), nil
}
// PresignRequest behaves just like presign, but hoists all headers and signs them.
// Also returns the signed hash back to the user
func (r *Request) PresignRequest(expireTime time.Duration) (string, http.Header, error) {
r.ExpireTime = expireTime
r.NotHoist = true
r.Sign()
if r.Error != nil {
return "", nil, r.Error
}
return r.HTTPRequest.URL.String(), r.SignedHeaderVals, nil
}
func debugLogReqError(r *Request, stage string, retrying bool, err error) {
if !r.Config.LogLevel.Matches(aws.LogDebugWithRequestErrors) {
return
}
retryStr := "not retrying"
if retrying {
retryStr = "will retry"
}
r.Config.Logger.Log(fmt.Sprintf("DEBUG: %s %s/%s failed, %s, error %v",
stage, r.ClientInfo.ServiceName, r.Operation.Name, retryStr, err))
}
// Build will build the request's object so it can be signed and sent
// to the service. Build will also validate all the request's parameters.
// Anny additional build Handlers set on this request will be run
// in the order they were set.
//
// The request will only be built once. Multiple calls to build will have
// no effect.
//
// If any Validate or Build errors occur the build will stop and the error
// which occurred will be returned.
func (r *Request) Build() error {
if !r.built {
r.Handlers.Validate.Run(r)
if r.Error != nil {
debugLogReqError(r, "Validate Request", false, r.Error)
return r.Error
}
r.Handlers.Build.Run(r)
if r.Error != nil {
debugLogReqError(r, "Build Request", false, r.Error)
return r.Error
}
r.built = true
}
return r.Error
}
// Sign will sign the request returning error if errors are encountered.
//
// Send will build the request prior to signing. All Sign Handlers will
// be executed in the order they were set.
func (r *Request) Sign() error {
r.Build()
if r.Error != nil {
debugLogReqError(r, "Build Request", false, r.Error)
return r.Error
}
r.Handlers.Sign.Run(r)
return r.Error
}
// Send will send the request returning error if errors are encountered.
//
// Send will sign the request prior to sending. All Send Handlers will
// be executed in the order they were set.
//
// Canceling a request is non-deterministic. If a request has been canceled,
// then the transport will choose, randomly, one of the state channels during
// reads or getting the connection.
//
// readLoop() and getConn(req *Request, cm connectMethod)
// https://github.com/golang/go/blob/master/src/net/http/transport.go
func (r *Request) Send() error {
for {
if aws.BoolValue(r.Retryable) {
if r.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) {
r.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d",
r.ClientInfo.ServiceName, r.Operation.Name, r.RetryCount))
}
var body io.ReadCloser
if reader, ok := r.HTTPRequest.Body.(*offsetReader); ok {
body = reader.CloseAndCopy(r.BodyStart)
} else {
if r.Config.Logger != nil {
r.Config.Logger.Log("Request body type has been overwritten. May cause race conditions")
}
r.Body.Seek(r.BodyStart, 0)
body = ioutil.NopCloser(r.Body)
}
r.HTTPRequest = copyHTTPRequest(r.HTTPRequest, body)
if r.HTTPResponse != nil && r.HTTPResponse.Body != nil {
// Closing response body. Since we are setting a new request to send off, this
// response will get squashed and leaked.
r.HTTPResponse.Body.Close()
}
}
r.Sign()
if r.Error != nil {
return r.Error
}
r.Retryable = nil
r.Handlers.Send.Run(r)
if r.Error != nil {
if strings.Contains(r.Error.Error(), "net/http: request canceled") {
return r.Error
}
err := r.Error
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Send Request", false, r.Error)
return r.Error
}
debugLogReqError(r, "Send Request", true, err)
continue
}
r.Handlers.UnmarshalMeta.Run(r)
r.Handlers.ValidateResponse.Run(r)
if r.Error != nil {
err := r.Error
r.Handlers.UnmarshalError.Run(r)
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Validate Response", false, r.Error)
return r.Error
}
debugLogReqError(r, "Validate Response", true, err)
continue
}
r.Handlers.Unmarshal.Run(r)
if r.Error != nil {
err := r.Error
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Unmarshal Response", false, r.Error)
return r.Error
}
debugLogReqError(r, "Unmarshal Response", true, err)
continue
}
break
}
return nil
}
// AddToUserAgent adds the string to the end of the request's current user agent.
func AddToUserAgent(r *Request, s string) {
curUA := r.HTTPRequest.Header.Get("User-Agent")
if len(curUA) > 0 {
s = curUA + " " + s
}
r.HTTPRequest.Header.Set("User-Agent", s)
}

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vendor/github.com/aws/aws-sdk-go/aws/request/request_pagination.go generated vendored Normal file
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package request
import (
"reflect"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awsutil"
)
//type Paginater interface {
// HasNextPage() bool
// NextPage() *Request
// EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error
//}
// HasNextPage returns true if this request has more pages of data available.
func (r *Request) HasNextPage() bool {
return len(r.nextPageTokens()) > 0
}
// nextPageTokens returns the tokens to use when asking for the next page of
// data.
func (r *Request) nextPageTokens() []interface{} {
if r.Operation.Paginator == nil {
return nil
}
if r.Operation.TruncationToken != "" {
tr, _ := awsutil.ValuesAtPath(r.Data, r.Operation.TruncationToken)
if len(tr) == 0 {
return nil
}
switch v := tr[0].(type) {
case *bool:
if !aws.BoolValue(v) {
return nil
}
case bool:
if v == false {
return nil
}
}
}
tokens := []interface{}{}
tokenAdded := false
for _, outToken := range r.Operation.OutputTokens {
v, _ := awsutil.ValuesAtPath(r.Data, outToken)
if len(v) > 0 {
tokens = append(tokens, v[0])
tokenAdded = true
} else {
tokens = append(tokens, nil)
}
}
if !tokenAdded {
return nil
}
return tokens
}
// NextPage returns a new Request that can be executed to return the next
// page of result data. Call .Send() on this request to execute it.
func (r *Request) NextPage() *Request {
tokens := r.nextPageTokens()
if len(tokens) == 0 {
return nil
}
data := reflect.New(reflect.TypeOf(r.Data).Elem()).Interface()
nr := New(r.Config, r.ClientInfo, r.Handlers, r.Retryer, r.Operation, awsutil.CopyOf(r.Params), data)
for i, intok := range nr.Operation.InputTokens {
awsutil.SetValueAtPath(nr.Params, intok, tokens[i])
}
return nr
}
// EachPage iterates over each page of a paginated request object. The fn
// parameter should be a function with the following sample signature:
//
// func(page *T, lastPage bool) bool {
// return true // return false to stop iterating
// }
//
// Where "T" is the structure type matching the output structure of the given
// operation. For example, a request object generated by
// DynamoDB.ListTablesRequest() would expect to see dynamodb.ListTablesOutput
// as the structure "T". The lastPage value represents whether the page is
// the last page of data or not. The return value of this function should
// return true to keep iterating or false to stop.
func (r *Request) EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error {
for page := r; page != nil; page = page.NextPage() {
if err := page.Send(); err != nil {
return err
}
if getNextPage := fn(page.Data, !page.HasNextPage()); !getNextPage {
return page.Error
}
}
return nil
}

101
vendor/github.com/aws/aws-sdk-go/aws/request/retryer.go generated vendored Normal file
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package request
import (
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// Retryer is an interface to control retry logic for a given service.
// The default implementation used by most services is the service.DefaultRetryer
// structure, which contains basic retry logic using exponential backoff.
type Retryer interface {
RetryRules(*Request) time.Duration
ShouldRetry(*Request) bool
MaxRetries() int
}
// WithRetryer sets a config Retryer value to the given Config returning it
// for chaining.
func WithRetryer(cfg *aws.Config, retryer Retryer) *aws.Config {
cfg.Retryer = retryer
return cfg
}
// retryableCodes is a collection of service response codes which are retry-able
// without any further action.
var retryableCodes = map[string]struct{}{
"RequestError": {},
"RequestTimeout": {},
}
var throttleCodes = map[string]struct{}{
"ProvisionedThroughputExceededException": {},
"Throttling": {},
"ThrottlingException": {},
"RequestLimitExceeded": {},
"RequestThrottled": {},
"LimitExceededException": {}, // Deleting 10+ DynamoDb tables at once
"TooManyRequestsException": {}, // Lambda functions
}
// credsExpiredCodes is a collection of error codes which signify the credentials
// need to be refreshed. Expired tokens require refreshing of credentials, and
// resigning before the request can be retried.
var credsExpiredCodes = map[string]struct{}{
"ExpiredToken": {},
"ExpiredTokenException": {},
"RequestExpired": {}, // EC2 Only
}
func isCodeThrottle(code string) bool {
_, ok := throttleCodes[code]
return ok
}
func isCodeRetryable(code string) bool {
if _, ok := retryableCodes[code]; ok {
return true
}
return isCodeExpiredCreds(code)
}
func isCodeExpiredCreds(code string) bool {
_, ok := credsExpiredCodes[code]
return ok
}
// IsErrorRetryable returns whether the error is retryable, based on its Code.
// Returns false if the request has no Error set.
func (r *Request) IsErrorRetryable() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeRetryable(err.Code())
}
}
return false
}
// IsErrorThrottle returns whether the error is to be throttled based on its code.
// Returns false if the request has no Error set
func (r *Request) IsErrorThrottle() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeThrottle(err.Code())
}
}
return false
}
// IsErrorExpired returns whether the error code is a credential expiry error.
// Returns false if the request has no Error set.
func (r *Request) IsErrorExpired() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeExpiredCreds(err.Code())
}
}
return false
}

234
vendor/github.com/aws/aws-sdk-go/aws/request/validation.go generated vendored Normal file
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package request
import (
"bytes"
"fmt"
"github.com/aws/aws-sdk-go/aws/awserr"
)
const (
// InvalidParameterErrCode is the error code for invalid parameters errors
InvalidParameterErrCode = "InvalidParameter"
// ParamRequiredErrCode is the error code for required parameter errors
ParamRequiredErrCode = "ParamRequiredError"
// ParamMinValueErrCode is the error code for fields with too low of a
// number value.
ParamMinValueErrCode = "ParamMinValueError"
// ParamMinLenErrCode is the error code for fields without enough elements.
ParamMinLenErrCode = "ParamMinLenError"
)
// Validator provides a way for types to perform validation logic on their
// input values that external code can use to determine if a type's values
// are valid.
type Validator interface {
Validate() error
}
// An ErrInvalidParams provides wrapping of invalid parameter errors found when
// validating API operation input parameters.
type ErrInvalidParams struct {
// Context is the base context of the invalid parameter group.
Context string
errs []ErrInvalidParam
}
// Add adds a new invalid parameter error to the collection of invalid
// parameters. The context of the invalid parameter will be updated to reflect
// this collection.
func (e *ErrInvalidParams) Add(err ErrInvalidParam) {
err.SetContext(e.Context)
e.errs = append(e.errs, err)
}
// AddNested adds the invalid parameter errors from another ErrInvalidParams
// value into this collection. The nested errors will have their nested context
// updated and base context to reflect the merging.
//
// Use for nested validations errors.
func (e *ErrInvalidParams) AddNested(nestedCtx string, nested ErrInvalidParams) {
for _, err := range nested.errs {
err.SetContext(e.Context)
err.AddNestedContext(nestedCtx)
e.errs = append(e.errs, err)
}
}
// Len returns the number of invalid parameter errors
func (e ErrInvalidParams) Len() int {
return len(e.errs)
}
// Code returns the code of the error
func (e ErrInvalidParams) Code() string {
return InvalidParameterErrCode
}
// Message returns the message of the error
func (e ErrInvalidParams) Message() string {
return fmt.Sprintf("%d validation error(s) found.", len(e.errs))
}
// Error returns the string formatted form of the invalid parameters.
func (e ErrInvalidParams) Error() string {
w := &bytes.Buffer{}
fmt.Fprintf(w, "%s: %s\n", e.Code(), e.Message())
for _, err := range e.errs {
fmt.Fprintf(w, "- %s\n", err.Message())
}
return w.String()
}
// OrigErr returns the invalid parameters as a awserr.BatchedErrors value
func (e ErrInvalidParams) OrigErr() error {
return awserr.NewBatchError(
InvalidParameterErrCode, e.Message(), e.OrigErrs())
}
// OrigErrs returns a slice of the invalid parameters
func (e ErrInvalidParams) OrigErrs() []error {
errs := make([]error, len(e.errs))
for i := 0; i < len(errs); i++ {
errs[i] = e.errs[i]
}
return errs
}
// An ErrInvalidParam represents an invalid parameter error type.
type ErrInvalidParam interface {
awserr.Error
// Field name the error occurred on.
Field() string
// SetContext updates the context of the error.
SetContext(string)
// AddNestedContext updates the error's context to include a nested level.
AddNestedContext(string)
}
type errInvalidParam struct {
context string
nestedContext string
field string
code string
msg string
}
// Code returns the error code for the type of invalid parameter.
func (e *errInvalidParam) Code() string {
return e.code
}
// Message returns the reason the parameter was invalid, and its context.
func (e *errInvalidParam) Message() string {
return fmt.Sprintf("%s, %s.", e.msg, e.Field())
}
// Error returns the string version of the invalid parameter error.
func (e *errInvalidParam) Error() string {
return fmt.Sprintf("%s: %s", e.code, e.Message())
}
// OrigErr returns nil, Implemented for awserr.Error interface.
func (e *errInvalidParam) OrigErr() error {
return nil
}
// Field Returns the field and context the error occurred.
func (e *errInvalidParam) Field() string {
field := e.context
if len(field) > 0 {
field += "."
}
if len(e.nestedContext) > 0 {
field += fmt.Sprintf("%s.", e.nestedContext)
}
field += e.field
return field
}
// SetContext updates the base context of the error.
func (e *errInvalidParam) SetContext(ctx string) {
e.context = ctx
}
// AddNestedContext prepends a context to the field's path.
func (e *errInvalidParam) AddNestedContext(ctx string) {
if len(e.nestedContext) == 0 {
e.nestedContext = ctx
} else {
e.nestedContext = fmt.Sprintf("%s.%s", ctx, e.nestedContext)
}
}
// An ErrParamRequired represents an required parameter error.
type ErrParamRequired struct {
errInvalidParam
}
// NewErrParamRequired creates a new required parameter error.
func NewErrParamRequired(field string) *ErrParamRequired {
return &ErrParamRequired{
errInvalidParam{
code: ParamRequiredErrCode,
field: field,
msg: fmt.Sprintf("missing required field"),
},
}
}
// An ErrParamMinValue represents a minimum value parameter error.
type ErrParamMinValue struct {
errInvalidParam
min float64
}
// NewErrParamMinValue creates a new minimum value parameter error.
func NewErrParamMinValue(field string, min float64) *ErrParamMinValue {
return &ErrParamMinValue{
errInvalidParam: errInvalidParam{
code: ParamMinValueErrCode,
field: field,
msg: fmt.Sprintf("minimum field value of %v", min),
},
min: min,
}
}
// MinValue returns the field's require minimum value.
//
// float64 is returned for both int and float min values.
func (e *ErrParamMinValue) MinValue() float64 {
return e.min
}
// An ErrParamMinLen represents a minimum length parameter error.
type ErrParamMinLen struct {
errInvalidParam
min int
}
// NewErrParamMinLen creates a new minimum length parameter error.
func NewErrParamMinLen(field string, min int) *ErrParamMinLen {
return &ErrParamMinLen{
errInvalidParam: errInvalidParam{
code: ParamMinValueErrCode,
field: field,
msg: fmt.Sprintf("minimum field size of %v", min),
},
min: min,
}
}
// MinLen returns the field's required minimum length.
func (e *ErrParamMinLen) MinLen() int {
return e.min
}

223
vendor/github.com/aws/aws-sdk-go/aws/session/doc.go generated vendored Normal file
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/*
Package session provides configuration for the SDK's service clients.
Sessions can be shared across all service clients that share the same base
configuration. The Session is built from the SDK's default configuration and
request handlers.
Sessions should be cached when possible, because creating a new Session will
load all configuration values from the environment, and config files each time
the Session is created. Sharing the Session value across all of your service
clients will ensure the configuration is loaded the fewest number of times possible.
Concurrency
Sessions are safe to use concurrently as long as the Session is not being
modified. The SDK will not modify the Session once the Session has been created.
Creating service clients concurrently from a shared Session is safe.
Sessions from Shared Config
Sessions can be created using the method above that will only load the
additional config if the AWS_SDK_LOAD_CONFIG environment variable is set.
Alternatively you can explicitly create a Session with shared config enabled.
To do this you can use NewSessionWithOptions to configure how the Session will
be created. Using the NewSessionWithOptions with SharedConfigState set to
SharedConfigEnabled will create the session as if the AWS_SDK_LOAD_CONFIG
environment variable was set.
Creating Sessions
When creating Sessions optional aws.Config values can be passed in that will
override the default, or loaded config values the Session is being created
with. This allows you to provide additional, or case based, configuration
as needed.
By default NewSession will only load credentials from the shared credentials
file (~/.aws/credentials). If the AWS_SDK_LOAD_CONFIG environment variable is
set to a truthy value the Session will be created from the configuration
values from the shared config (~/.aws/config) and shared credentials
(~/.aws/credentials) files. See the section Sessions from Shared Config for
more information.
Create a Session with the default config and request handlers. With credentials
region, and profile loaded from the environment and shared config automatically.
Requires the AWS_PROFILE to be set, or "default" is used.
// Create Session
sess, err := session.NewSession()
// Create a Session with a custom region
sess, err := session.NewSession(&aws.Config{Region: aws.String("us-east-1")})
// Create a S3 client instance from a session
sess, err := session.NewSession()
if err != nil {
// Handle Session creation error
}
svc := s3.New(sess)
Create Session With Option Overrides
In addition to NewSession, Sessions can be created using NewSessionWithOptions.
This func allows you to control and override how the Session will be created
through code instead of being driven by environment variables only.
Use NewSessionWithOptions when you want to provide the config profile, or
override the shared config state (AWS_SDK_LOAD_CONFIG).
// Equivalent to session.New
sess, err := session.NewSessionWithOptions(session.Options{})
// Specify profile to load for the session's config
sess, err := session.NewSessionWithOptions(session.Options{
Profile: "profile_name",
})
// Specify profile for config and region for requests
sess, err := session.NewSessionWithOptions(session.Options{
Config: aws.Config{Region: aws.String("us-east-1")},
Profile: "profile_name",
})
// Force enable Shared Config support
sess, err := session.NewSessionWithOptions(session.Options{
SharedConfigState: SharedConfigEnable,
})
Adding Handlers
You can add handlers to a session for processing HTTP requests. All service
clients that use the session inherit the handlers. For example, the following
handler logs every request and its payload made by a service client:
// Create a session, and add additional handlers for all service
// clients created with the Session to inherit. Adds logging handler.
sess, err := session.NewSession()
sess.Handlers.Send.PushFront(func(r *request.Request) {
// Log every request made and its payload
logger.Println("Request: %s/%s, Payload: %s",
r.ClientInfo.ServiceName, r.Operation, r.Params)
})
Deprecated "New" function
The New session function has been deprecated because it does not provide good
way to return errors that occur when loading the configuration files and values.
Because of this, NewSession was created so errors can be retrieved when
creating a session fails.
Shared Config Fields
By default the SDK will only load the shared credentials file's (~/.aws/credentials)
credentials values, and all other config is provided by the environment variables,
SDK defaults, and user provided aws.Config values.
If the AWS_SDK_LOAD_CONFIG environment variable is set, or SharedConfigEnable
option is used to create the Session the full shared config values will be
loaded. This includes credentials, region, and support for assume role. In
addition the Session will load its configuration from both the shared config
file (~/.aws/config) and shared credentials file (~/.aws/credentials). Both
files have the same format.
If both config files are present the configuration from both files will be
read. The Session will be created from configuration values from the shared
credentials file (~/.aws/credentials) over those in the shared credentials
file (~/.aws/config).
Credentials are the values the SDK should use for authenticating requests with
AWS Services. They arfrom a configuration file will need to include both
aws_access_key_id and aws_secret_access_key must be provided together in the
same file to be considered valid. The values will be ignored if not a complete
group. aws_session_token is an optional field that can be provided if both of
the other two fields are also provided.
aws_access_key_id = AKID
aws_secret_access_key = SECRET
aws_session_token = TOKEN
Assume Role values allow you to configure the SDK to assume an IAM role using
a set of credentials provided in a config file via the source_profile field.
Both "role_arn" and "source_profile" are required. The SDK does not support
assuming a role with MFA token Via the Session's constructor. You can use the
stscreds.AssumeRoleProvider credentials provider to specify custom
configuration and support for MFA.
role_arn = arn:aws:iam::<account_number>:role/<role_name>
source_profile = profile_with_creds
external_id = 1234
mfa_serial = not supported!
role_session_name = session_name
Region is the region the SDK should use for looking up AWS service endpoints
and signing requests.
region = us-east-1
Environment Variables
When a Session is created several environment variables can be set to adjust
how the SDK functions, and what configuration data it loads when creating
Sessions. All environment values are optional, but some values like credentials
require multiple of the values to set or the partial values will be ignored.
All environment variable values are strings unless otherwise noted.
Environment configuration values. If set both Access Key ID and Secret Access
Key must be provided. Session Token and optionally also be provided, but is
not required.
# Access Key ID
AWS_ACCESS_KEY_ID=AKID
AWS_ACCESS_KEY=AKID # only read if AWS_ACCESS_KEY_ID is not set.
# Secret Access Key
AWS_SECRET_ACCESS_KEY=SECRET
AWS_SECRET_KEY=SECRET=SECRET # only read if AWS_SECRET_ACCESS_KEY is not set.
# Session Token
AWS_SESSION_TOKEN=TOKEN
Region value will instruct the SDK where to make service API requests to. If is
not provided in the environment the region must be provided before a service
client request is made.
AWS_REGION=us-east-1
# AWS_DEFAULT_REGION is only read if AWS_SDK_LOAD_CONFIG is also set,
# and AWS_REGION is not also set.
AWS_DEFAULT_REGION=us-east-1
Profile name the SDK should load use when loading shared config from the
configuration files. If not provided "default" will be used as the profile name.
AWS_PROFILE=my_profile
# AWS_DEFAULT_PROFILE is only read if AWS_SDK_LOAD_CONFIG is also set,
# and AWS_PROFILE is not also set.
AWS_DEFAULT_PROFILE=my_profile
SDK load config instructs the SDK to load the shared config in addition to
shared credentials. This also expands the configuration loaded so the shared
credentials will have parity with the shared config file. This also enables
Region and Profile support for the AWS_DEFAULT_REGION and AWS_DEFAULT_PROFILE
env values as well.
AWS_SDK_LOAD_CONFIG=1
Shared credentials file path can be set to instruct the SDK to use an alternative
file for the shared credentials. If not set the file will be loaded from
$HOME/.aws/credentials on Linux/Unix based systems, and
%USERPROFILE%\.aws\credentials on Windows.
AWS_SHARED_CREDENTIALS_FILE=$HOME/my_shared_credentials
Shared config file path can be set to instruct the SDK to use an alternative
file for the shared config. If not set the file will be loaded from
$HOME/.aws/config on Linux/Unix based systems, and
%USERPROFILE%\.aws\config on Windows.
AWS_CONFIG_FILE=$HOME/my_shared_config
*/
package session

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package session
import (
"os"
"path/filepath"
"strconv"
"github.com/aws/aws-sdk-go/aws/credentials"
)
// envConfig is a collection of environment values the SDK will read
// setup config from. All environment values are optional. But some values
// such as credentials require multiple values to be complete or the values
// will be ignored.
type envConfig struct {
// Environment configuration values. If set both Access Key ID and Secret Access
// Key must be provided. Session Token and optionally also be provided, but is
// not required.
//
// # Access Key ID
// AWS_ACCESS_KEY_ID=AKID
// AWS_ACCESS_KEY=AKID # only read if AWS_ACCESS_KEY_ID is not set.
//
// # Secret Access Key
// AWS_SECRET_ACCESS_KEY=SECRET
// AWS_SECRET_KEY=SECRET=SECRET # only read if AWS_SECRET_ACCESS_KEY is not set.
//
// # Session Token
// AWS_SESSION_TOKEN=TOKEN
Creds credentials.Value
// Region value will instruct the SDK where to make service API requests to. If is
// not provided in the environment the region must be provided before a service
// client request is made.
//
// AWS_REGION=us-east-1
//
// # AWS_DEFAULT_REGION is only read if AWS_SDK_LOAD_CONFIG is also set,
// # and AWS_REGION is not also set.
// AWS_DEFAULT_REGION=us-east-1
Region string
// Profile name the SDK should load use when loading shared configuration from the
// shared configuration files. If not provided "default" will be used as the
// profile name.
//
// AWS_PROFILE=my_profile
//
// # AWS_DEFAULT_PROFILE is only read if AWS_SDK_LOAD_CONFIG is also set,
// # and AWS_PROFILE is not also set.
// AWS_DEFAULT_PROFILE=my_profile
Profile string
// SDK load config instructs the SDK to load the shared config in addition to
// shared credentials. This also expands the configuration loaded from the shared
// credentials to have parity with the shared config file. This also enables
// Region and Profile support for the AWS_DEFAULT_REGION and AWS_DEFAULT_PROFILE
// env values as well.
//
// AWS_SDK_LOAD_CONFIG=1
EnableSharedConfig bool
// Shared credentials file path can be set to instruct the SDK to use an alternate
// file for the shared credentials. If not set the file will be loaded from
// $HOME/.aws/credentials on Linux/Unix based systems, and
// %USERPROFILE%\.aws\credentials on Windows.
//
// AWS_SHARED_CREDENTIALS_FILE=$HOME/my_shared_credentials
SharedCredentialsFile string
// Shared config file path can be set to instruct the SDK to use an alternate
// file for the shared config. If not set the file will be loaded from
// $HOME/.aws/config on Linux/Unix based systems, and
// %USERPROFILE%\.aws\config on Windows.
//
// AWS_CONFIG_FILE=$HOME/my_shared_config
SharedConfigFile string
}
var (
credAccessEnvKey = []string{
"AWS_ACCESS_KEY_ID",
"AWS_ACCESS_KEY",
}
credSecretEnvKey = []string{
"AWS_SECRET_ACCESS_KEY",
"AWS_SECRET_KEY",
}
credSessionEnvKey = []string{
"AWS_SESSION_TOKEN",
}
regionEnvKeys = []string{
"AWS_REGION",
"AWS_DEFAULT_REGION", // Only read if AWS_SDK_LOAD_CONFIG is also set
}
profileEnvKeys = []string{
"AWS_PROFILE",
"AWS_DEFAULT_PROFILE", // Only read if AWS_SDK_LOAD_CONFIG is also set
}
)
// loadEnvConfig retrieves the SDK's environment configuration.
// See `envConfig` for the values that will be retrieved.
//
// If the environment variable `AWS_SDK_LOAD_CONFIG` is set to a truthy value
// the shared SDK config will be loaded in addition to the SDK's specific
// configuration values.
func loadEnvConfig() envConfig {
enableSharedConfig, _ := strconv.ParseBool(os.Getenv("AWS_SDK_LOAD_CONFIG"))
return envConfigLoad(enableSharedConfig)
}
// loadEnvSharedConfig retrieves the SDK's environment configuration, and the
// SDK shared config. See `envConfig` for the values that will be retrieved.
//
// Loads the shared configuration in addition to the SDK's specific configuration.
// This will load the same values as `loadEnvConfig` if the `AWS_SDK_LOAD_CONFIG`
// environment variable is set.
func loadSharedEnvConfig() envConfig {
return envConfigLoad(true)
}
func envConfigLoad(enableSharedConfig bool) envConfig {
cfg := envConfig{}
cfg.EnableSharedConfig = enableSharedConfig
setFromEnvVal(&cfg.Creds.AccessKeyID, credAccessEnvKey)
setFromEnvVal(&cfg.Creds.SecretAccessKey, credSecretEnvKey)
setFromEnvVal(&cfg.Creds.SessionToken, credSessionEnvKey)
// Require logical grouping of credentials
if len(cfg.Creds.AccessKeyID) == 0 || len(cfg.Creds.SecretAccessKey) == 0 {
cfg.Creds = credentials.Value{}
} else {
cfg.Creds.ProviderName = "EnvConfigCredentials"
}
regionKeys := regionEnvKeys
profileKeys := profileEnvKeys
if !cfg.EnableSharedConfig {
regionKeys = regionKeys[:1]
profileKeys = profileKeys[:1]
}
setFromEnvVal(&cfg.Region, regionKeys)
setFromEnvVal(&cfg.Profile, profileKeys)
cfg.SharedCredentialsFile = sharedCredentialsFilename()
cfg.SharedConfigFile = sharedConfigFilename()
return cfg
}
func setFromEnvVal(dst *string, keys []string) {
for _, k := range keys {
if v := os.Getenv(k); len(v) > 0 {
*dst = v
break
}
}
}
func sharedCredentialsFilename() string {
if name := os.Getenv("AWS_SHARED_CREDENTIALS_FILE"); len(name) > 0 {
return name
}
return filepath.Join(userHomeDir(), ".aws", "credentials")
}
func sharedConfigFilename() string {
if name := os.Getenv("AWS_CONFIG_FILE"); len(name) > 0 {
return name
}
return filepath.Join(userHomeDir(), ".aws", "config")
}
func userHomeDir() string {
homeDir := os.Getenv("HOME") // *nix
if len(homeDir) == 0 { // windows
homeDir = os.Getenv("USERPROFILE")
}
return homeDir
}

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package session
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/corehandlers"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
"github.com/aws/aws-sdk-go/aws/defaults"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/endpoints"
)
// A Session provides a central location to create service clients from and
// store configurations and request handlers for those services.
//
// Sessions are safe to create service clients concurrently, but it is not safe
// to mutate the Session concurrently.
//
// The Session satisfies the service client's client.ClientConfigProvider.
type Session struct {
Config *aws.Config
Handlers request.Handlers
}
// New creates a new instance of the handlers merging in the provided configs
// on top of the SDK's default configurations. Once the Session is created it
// can be mutated to modify the Config or Handlers. The Session is safe to be
// read concurrently, but it should not be written to concurrently.
//
// If the AWS_SDK_LOAD_CONFIG environment is set to a truthy value, the New
// method could now encounter an error when loading the configuration. When
// The environment variable is set, and an error occurs, New will return a
// session that will fail all requests reporting the error that occured while
// loading the session. Use NewSession to get the error when creating the
// session.
//
// If the AWS_SDK_LOAD_CONFIG environment variable is set to a truthy value
// the shared config file (~/.aws/config) will also be loaded, in addition to
// the shared credentials file (~/.aws/config). Values set in both the
// shared config, and shared credentials will be taken from the shared
// credentials file.
//
// Deprecated: Use NewSession functiions to create sessions instead. NewSession
// has the same functionality as New except an error can be returned when the
// func is called instead of waiting to receive an error until a request is made.
func New(cfgs ...*aws.Config) *Session {
// load initial config from environment
envCfg := loadEnvConfig()
if envCfg.EnableSharedConfig {
s, err := newSession(envCfg, cfgs...)
if err != nil {
// Old session.New expected all errors to be discovered when
// a request is made, and would report the errors then. This
// needs to be replicated if an error occurs while creating
// the session.
msg := "failed to create session with AWS_SDK_LOAD_CONFIG enabled. " +
"Use session.NewSession to handle errors occuring during session creation."
// Session creation failed, need to report the error and prevent
// any requests from succeeding.
s = &Session{Config: defaults.Config()}
s.Config.MergeIn(cfgs...)
s.Config.Logger.Log("ERROR:", msg, "Error:", err)
s.Handlers.Validate.PushBack(func(r *request.Request) {
r.Error = err
})
}
return s
}
return oldNewSession(cfgs...)
}
// NewSession returns a new Session created from SDK defaults, config files,
// environment, and user provided config files. Once the Session is created
// it can be mutated to modify the Config or Handlers. The Session is safe to
// be read concurrently, but it should not be written to concurrently.
//
// If the AWS_SDK_LOAD_CONFIG environment variable is set to a truthy value
// the shared config file (~/.aws/config) will also be loaded in addition to
// the shared credentials file (~/.aws/config). Values set in both the
// shared config, and shared credentials will be taken from the shared
// credentials file. Enabling the Shared Config will also allow the Session
// to be built with retrieving credentials with AssumeRole set in the config.
//
// See the NewSessionWithOptions func for information on how to override or
// control through code how the Session will be created. Such as specifing the
// config profile, and controlling if shared config is enabled or not.
func NewSession(cfgs ...*aws.Config) (*Session, error) {
envCfg := loadEnvConfig()
return newSession(envCfg, cfgs...)
}
// SharedConfigState provides the ability to optionally override the state
// of the session's creation based on the shared config being enabled or
// disabled.
type SharedConfigState int
const (
// SharedConfigStateFromEnv does not override any state of the
// AWS_SDK_LOAD_CONFIG env var. It is the default value of the
// SharedConfigState type.
SharedConfigStateFromEnv SharedConfigState = iota
// SharedConfigDisable overrides the AWS_SDK_LOAD_CONFIG env var value
// and disables the shared config functionality.
SharedConfigDisable
// SharedConfigEnable overrides the AWS_SDK_LOAD_CONFIG env var value
// and enables the shared config functionality.
SharedConfigEnable
)
// Options provides the means to control how a Session is created and what
// configuration values will be loaded.
//
type Options struct {
// Provides config values for the SDK to use when creating service clients
// and making API requests to services. Any value set in with this field
// will override the associated value provided by the SDK defaults,
// environment or config files where relevent.
//
// If not set, configuration values from from SDK defaults, environment,
// config will be used.
Config aws.Config
// Overrides the config profile the Session should be created from. If not
// set the value of the environment variable will be loaded (AWS_PROFILE,
// or AWS_DEFAULT_PROFILE if the Shared Config is enabled).
//
// If not set and environment variables are not set the "default"
// (DefaultSharedConfigProfile) will be used as the profile to load the
// session config from.
Profile string
// Instructs how the Session will be created based on the AWS_SDK_LOAD_CONFIG
// environment variable. By default a Session will be created using the
// value provided by the AWS_SDK_LOAD_CONFIG environment variable.
//
// Setting this value to SharedConfigEnable or SharedConfigDisable
// will allow you to override the AWS_SDK_LOAD_CONFIG environment variable
// and enable or disable the shared config functionality.
SharedConfigState SharedConfigState
}
// NewSessionWithOptions returns a new Session created from SDK defaults, config files,
// environment, and user provided config files. This func uses the Options
// values to configure how the Session is created.
//
// If the AWS_SDK_LOAD_CONFIG environment variable is set to a truthy value
// the shared config file (~/.aws/config) will also be loaded in addition to
// the shared credentials file (~/.aws/config). Values set in both the
// shared config, and shared credentials will be taken from the shared
// credentials file. Enabling the Shared Config will also allow the Session
// to be built with retrieving credentials with AssumeRole set in the config.
//
// // Equivalent to session.New
// sess, err := session.NewSessionWithOptions(session.Options{})
//
// // Specify profile to load for the session's config
// sess, err := session.NewSessionWithOptions(session.Options{
// Profile: "profile_name",
// })
//
// // Specify profile for config and region for requests
// sess, err := session.NewSessionWithOptions(session.Options{
// Config: aws.Config{Region: aws.String("us-east-1")},
// Profile: "profile_name",
// })
//
// // Force enable Shared Config support
// sess, err := session.NewSessionWithOptions(session.Options{
// SharedConfigState: SharedConfigEnable,
// })
func NewSessionWithOptions(opts Options) (*Session, error) {
var envCfg envConfig
if opts.SharedConfigState == SharedConfigEnable {
envCfg = loadSharedEnvConfig()
} else {
envCfg = loadEnvConfig()
}
if len(opts.Profile) > 0 {
envCfg.Profile = opts.Profile
}
switch opts.SharedConfigState {
case SharedConfigDisable:
envCfg.EnableSharedConfig = false
case SharedConfigEnable:
envCfg.EnableSharedConfig = true
}
return newSession(envCfg, &opts.Config)
}
// Must is a helper function to ensure the Session is valid and there was no
// error when calling a NewSession function.
//
// This helper is intended to be used in variable initialization to load the
// Session and configuration at startup. Such as:
//
// var sess = session.Must(session.NewSession())
func Must(sess *Session, err error) *Session {
if err != nil {
panic(err)
}
return sess
}
func oldNewSession(cfgs ...*aws.Config) *Session {
cfg := defaults.Config()
handlers := defaults.Handlers()
// Apply the passed in configs so the configuration can be applied to the
// default credential chain
cfg.MergeIn(cfgs...)
cfg.Credentials = defaults.CredChain(cfg, handlers)
// Reapply any passed in configs to override credentials if set
cfg.MergeIn(cfgs...)
s := &Session{
Config: cfg,
Handlers: handlers,
}
initHandlers(s)
return s
}
func newSession(envCfg envConfig, cfgs ...*aws.Config) (*Session, error) {
cfg := defaults.Config()
handlers := defaults.Handlers()
// Get a merged version of the user provided config to determine if
// credentials were.
userCfg := &aws.Config{}
userCfg.MergeIn(cfgs...)
// Order config files will be loaded in with later files overwriting
// previous config file values.
cfgFiles := []string{envCfg.SharedConfigFile, envCfg.SharedCredentialsFile}
if !envCfg.EnableSharedConfig {
// The shared config file (~/.aws/config) is only loaded if instructed
// to load via the envConfig.EnableSharedConfig (AWS_SDK_LOAD_CONFIG).
cfgFiles = cfgFiles[1:]
}
// Load additional config from file(s)
sharedCfg, err := loadSharedConfig(envCfg.Profile, cfgFiles)
if err != nil {
return nil, err
}
mergeConfigSrcs(cfg, userCfg, envCfg, sharedCfg, handlers)
s := &Session{
Config: cfg,
Handlers: handlers,
}
initHandlers(s)
return s, nil
}
func mergeConfigSrcs(cfg, userCfg *aws.Config, envCfg envConfig, sharedCfg sharedConfig, handlers request.Handlers) {
// Merge in user provided configuration
cfg.MergeIn(userCfg)
// Region if not already set by user
if len(aws.StringValue(cfg.Region)) == 0 {
if len(envCfg.Region) > 0 {
cfg.WithRegion(envCfg.Region)
} else if envCfg.EnableSharedConfig && len(sharedCfg.Region) > 0 {
cfg.WithRegion(sharedCfg.Region)
}
}
// Configure credentials if not already set
if cfg.Credentials == credentials.AnonymousCredentials && userCfg.Credentials == nil {
if len(envCfg.Creds.AccessKeyID) > 0 {
cfg.Credentials = credentials.NewStaticCredentialsFromCreds(
envCfg.Creds,
)
} else if envCfg.EnableSharedConfig && len(sharedCfg.AssumeRole.RoleARN) > 0 && sharedCfg.AssumeRoleSource != nil {
cfgCp := *cfg
cfgCp.Credentials = credentials.NewStaticCredentialsFromCreds(
sharedCfg.AssumeRoleSource.Creds,
)
cfg.Credentials = stscreds.NewCredentials(
&Session{
Config: &cfgCp,
Handlers: handlers.Copy(),
},
sharedCfg.AssumeRole.RoleARN,
func(opt *stscreds.AssumeRoleProvider) {
opt.RoleSessionName = sharedCfg.AssumeRole.RoleSessionName
if len(sharedCfg.AssumeRole.ExternalID) > 0 {
opt.ExternalID = aws.String(sharedCfg.AssumeRole.ExternalID)
}
// MFA not supported
},
)
} else if len(sharedCfg.Creds.AccessKeyID) > 0 {
cfg.Credentials = credentials.NewStaticCredentialsFromCreds(
sharedCfg.Creds,
)
} else {
// Fallback to default credentials provider, include mock errors
// for the credential chain so user can identify why credentials
// failed to be retrieved.
cfg.Credentials = credentials.NewCredentials(&credentials.ChainProvider{
VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors),
Providers: []credentials.Provider{
&credProviderError{Err: awserr.New("EnvAccessKeyNotFound", "failed to find credentials in the environment.", nil)},
&credProviderError{Err: awserr.New("SharedCredsLoad", fmt.Sprintf("failed to load profile, %s.", envCfg.Profile), nil)},
defaults.RemoteCredProvider(*cfg, handlers),
},
})
}
}
}
type credProviderError struct {
Err error
}
var emptyCreds = credentials.Value{}
func (c credProviderError) Retrieve() (credentials.Value, error) {
return credentials.Value{}, c.Err
}
func (c credProviderError) IsExpired() bool {
return true
}
func initHandlers(s *Session) {
// Add the Validate parameter handler if it is not disabled.
s.Handlers.Validate.Remove(corehandlers.ValidateParametersHandler)
if !aws.BoolValue(s.Config.DisableParamValidation) {
s.Handlers.Validate.PushBackNamed(corehandlers.ValidateParametersHandler)
}
}
// Copy creates and returns a copy of the current Session, coping the config
// and handlers. If any additional configs are provided they will be merged
// on top of the Session's copied config.
//
// // Create a copy of the current Session, configured for the us-west-2 region.
// sess.Copy(&aws.Config{Region: aws.String("us-west-2")})
func (s *Session) Copy(cfgs ...*aws.Config) *Session {
newSession := &Session{
Config: s.Config.Copy(cfgs...),
Handlers: s.Handlers.Copy(),
}
initHandlers(newSession)
return newSession
}
// ClientConfig satisfies the client.ConfigProvider interface and is used to
// configure the service client instances. Passing the Session to the service
// client's constructor (New) will use this method to configure the client.
func (s *Session) ClientConfig(serviceName string, cfgs ...*aws.Config) client.Config {
s = s.Copy(cfgs...)
endpoint, signingRegion := endpoints.NormalizeEndpoint(
aws.StringValue(s.Config.Endpoint),
serviceName,
aws.StringValue(s.Config.Region),
aws.BoolValue(s.Config.DisableSSL),
aws.BoolValue(s.Config.UseDualStack),
)
return client.Config{
Config: s.Config,
Handlers: s.Handlers,
Endpoint: endpoint,
SigningRegion: signingRegion,
}
}

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package session
import (
"fmt"
"os"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/go-ini/ini"
)
const (
// Static Credentials group
accessKeyIDKey = `aws_access_key_id` // group required
secretAccessKey = `aws_secret_access_key` // group required
sessionTokenKey = `aws_session_token` // optional
// Assume Role Credentials group
roleArnKey = `role_arn` // group required
sourceProfileKey = `source_profile` // group required
externalIDKey = `external_id` // optional
mfaSerialKey = `mfa_serial` // optional
roleSessionNameKey = `role_session_name` // optional
// Additional Config fields
regionKey = `region`
// DefaultSharedConfigProfile is the default profile to be used when
// loading configuration from the config files if another profile name
// is not provided.
DefaultSharedConfigProfile = `default`
)
type assumeRoleConfig struct {
RoleARN string
SourceProfile string
ExternalID string
MFASerial string
RoleSessionName string
}
// sharedConfig represents the configuration fields of the SDK config files.
type sharedConfig struct {
// Credentials values from the config file. Both aws_access_key_id
// and aws_secret_access_key must be provided together in the same file
// to be considered valid. The values will be ignored if not a complete group.
// aws_session_token is an optional field that can be provided if both of the
// other two fields are also provided.
//
// aws_access_key_id
// aws_secret_access_key
// aws_session_token
Creds credentials.Value
AssumeRole assumeRoleConfig
AssumeRoleSource *sharedConfig
// Region is the region the SDK should use for looking up AWS service endpoints
// and signing requests.
//
// region
Region string
}
type sharedConfigFile struct {
Filename string
IniData *ini.File
}
// loadSharedConfig retrieves the configuration from the list of files
// using the profile provided. The order the files are listed will determine
// precedence. Values in subsequent files will overwrite values defined in
// earlier files.
//
// For example, given two files A and B. Both define credentials. If the order
// of the files are A then B, B's credential values will be used instead of A's.
//
// See sharedConfig.setFromFile for information how the config files
// will be loaded.
func loadSharedConfig(profile string, filenames []string) (sharedConfig, error) {
if len(profile) == 0 {
profile = DefaultSharedConfigProfile
}
files, err := loadSharedConfigIniFiles(filenames)
if err != nil {
return sharedConfig{}, err
}
cfg := sharedConfig{}
if err = cfg.setFromIniFiles(profile, files); err != nil {
return sharedConfig{}, err
}
if len(cfg.AssumeRole.SourceProfile) > 0 {
if err := cfg.setAssumeRoleSource(profile, files); err != nil {
return sharedConfig{}, err
}
}
return cfg, nil
}
func loadSharedConfigIniFiles(filenames []string) ([]sharedConfigFile, error) {
files := make([]sharedConfigFile, 0, len(filenames))
for _, filename := range filenames {
if _, err := os.Stat(filename); os.IsNotExist(err) {
// Trim files from the list that don't exist.
continue
}
f, err := ini.Load(filename)
if err != nil {
return nil, SharedConfigLoadError{Filename: filename}
}
files = append(files, sharedConfigFile{
Filename: filename, IniData: f,
})
}
return files, nil
}
func (cfg *sharedConfig) setAssumeRoleSource(origProfile string, files []sharedConfigFile) error {
var assumeRoleSrc sharedConfig
// Multiple level assume role chains are not support
if cfg.AssumeRole.SourceProfile == origProfile {
assumeRoleSrc = *cfg
assumeRoleSrc.AssumeRole = assumeRoleConfig{}
} else {
err := assumeRoleSrc.setFromIniFiles(cfg.AssumeRole.SourceProfile, files)
if err != nil {
return err
}
}
if len(assumeRoleSrc.Creds.AccessKeyID) == 0 {
return SharedConfigAssumeRoleError{RoleARN: cfg.AssumeRole.RoleARN}
}
cfg.AssumeRoleSource = &assumeRoleSrc
return nil
}
func (cfg *sharedConfig) setFromIniFiles(profile string, files []sharedConfigFile) error {
// Trim files from the list that don't exist.
for _, f := range files {
if err := cfg.setFromIniFile(profile, f); err != nil {
if _, ok := err.(SharedConfigProfileNotExistsError); ok {
// Ignore proviles missings
continue
}
return err
}
}
return nil
}
// setFromFile loads the configuration from the file using
// the profile provided. A sharedConfig pointer type value is used so that
// multiple config file loadings can be chained.
//
// Only loads complete logically grouped values, and will not set fields in cfg
// for incomplete grouped values in the config. Such as credentials. For example
// if a config file only includes aws_access_key_id but no aws_secret_access_key
// the aws_access_key_id will be ignored.
func (cfg *sharedConfig) setFromIniFile(profile string, file sharedConfigFile) error {
section, err := file.IniData.GetSection(profile)
if err != nil {
// Fallback to to alternate profile name: profile <name>
section, err = file.IniData.GetSection(fmt.Sprintf("profile %s", profile))
if err != nil {
return SharedConfigProfileNotExistsError{Profile: profile, Err: err}
}
}
// Shared Credentials
akid := section.Key(accessKeyIDKey).String()
secret := section.Key(secretAccessKey).String()
if len(akid) > 0 && len(secret) > 0 {
cfg.Creds = credentials.Value{
AccessKeyID: akid,
SecretAccessKey: secret,
SessionToken: section.Key(sessionTokenKey).String(),
ProviderName: fmt.Sprintf("SharedConfigCredentials: %s", file.Filename),
}
}
// Assume Role
roleArn := section.Key(roleArnKey).String()
srcProfile := section.Key(sourceProfileKey).String()
if len(roleArn) > 0 && len(srcProfile) > 0 {
cfg.AssumeRole = assumeRoleConfig{
RoleARN: roleArn,
SourceProfile: srcProfile,
ExternalID: section.Key(externalIDKey).String(),
MFASerial: section.Key(mfaSerialKey).String(),
RoleSessionName: section.Key(roleSessionNameKey).String(),
}
}
// Region
if v := section.Key(regionKey).String(); len(v) > 0 {
cfg.Region = v
}
return nil
}
// SharedConfigLoadError is an error for the shared config file failed to load.
type SharedConfigLoadError struct {
Filename string
Err error
}
// Code is the short id of the error.
func (e SharedConfigLoadError) Code() string {
return "SharedConfigLoadError"
}
// Message is the description of the error
func (e SharedConfigLoadError) Message() string {
return fmt.Sprintf("failed to load config file, %s", e.Filename)
}
// OrigErr is the underlying error that caused the failure.
func (e SharedConfigLoadError) OrigErr() error {
return e.Err
}
// Error satisfies the error interface.
func (e SharedConfigLoadError) Error() string {
return awserr.SprintError(e.Code(), e.Message(), "", e.Err)
}
// SharedConfigProfileNotExistsError is an error for the shared config when
// the profile was not find in the config file.
type SharedConfigProfileNotExistsError struct {
Profile string
Err error
}
// Code is the short id of the error.
func (e SharedConfigProfileNotExistsError) Code() string {
return "SharedConfigProfileNotExistsError"
}
// Message is the description of the error
func (e SharedConfigProfileNotExistsError) Message() string {
return fmt.Sprintf("failed to get profile, %s", e.Profile)
}
// OrigErr is the underlying error that caused the failure.
func (e SharedConfigProfileNotExistsError) OrigErr() error {
return e.Err
}
// Error satisfies the error interface.
func (e SharedConfigProfileNotExistsError) Error() string {
return awserr.SprintError(e.Code(), e.Message(), "", e.Err)
}
// SharedConfigAssumeRoleError is an error for the shared config when the
// profile contains assume role information, but that information is invalid
// or not complete.
type SharedConfigAssumeRoleError struct {
RoleARN string
}
// Code is the short id of the error.
func (e SharedConfigAssumeRoleError) Code() string {
return "SharedConfigAssumeRoleError"
}
// Message is the description of the error
func (e SharedConfigAssumeRoleError) Message() string {
return fmt.Sprintf("failed to load assume role for %s, source profile has no shared credentials",
e.RoleARN)
}
// OrigErr is the underlying error that caused the failure.
func (e SharedConfigAssumeRoleError) OrigErr() error {
return nil
}
// Error satisfies the error interface.
func (e SharedConfigAssumeRoleError) Error() string {
return awserr.SprintError(e.Code(), e.Message(), "", nil)
}

82
vendor/github.com/aws/aws-sdk-go/aws/signer/v4/header_rules.go generated vendored Normal file
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package v4
import (
"net/http"
"strings"
)
// validator houses a set of rule needed for validation of a
// string value
type rules []rule
// rule interface allows for more flexible rules and just simply
// checks whether or not a value adheres to that rule
type rule interface {
IsValid(value string) bool
}
// IsValid will iterate through all rules and see if any rules
// apply to the value and supports nested rules
func (r rules) IsValid(value string) bool {
for _, rule := range r {
if rule.IsValid(value) {
return true
}
}
return false
}
// mapRule generic rule for maps
type mapRule map[string]struct{}
// IsValid for the map rule satisfies whether it exists in the map
func (m mapRule) IsValid(value string) bool {
_, ok := m[value]
return ok
}
// whitelist is a generic rule for whitelisting
type whitelist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (w whitelist) IsValid(value string) bool {
return w.rule.IsValid(value)
}
// blacklist is a generic rule for blacklisting
type blacklist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (b blacklist) IsValid(value string) bool {
return !b.rule.IsValid(value)
}
type patterns []string
// IsValid for patterns checks each pattern and returns if a match has
// been found
func (p patterns) IsValid(value string) bool {
for _, pattern := range p {
if strings.HasPrefix(http.CanonicalHeaderKey(value), pattern) {
return true
}
}
return false
}
// inclusiveRules rules allow for rules to depend on one another
type inclusiveRules []rule
// IsValid will return true if all rules are true
func (r inclusiveRules) IsValid(value string) bool {
for _, rule := range r {
if !rule.IsValid(value) {
return false
}
}
return true
}

665
vendor/github.com/aws/aws-sdk-go/aws/signer/v4/v4.go generated vendored Normal file
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// Package v4 implements signing for AWS V4 signer
//
// Provides request signing for request that need to be signed with
// AWS V4 Signatures.
package v4
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/rest"
)
const (
authHeaderPrefix = "AWS4-HMAC-SHA256"
timeFormat = "20060102T150405Z"
shortTimeFormat = "20060102"
// emptyStringSHA256 is a SHA256 of an empty string
emptyStringSHA256 = `e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855`
)
var ignoredHeaders = rules{
blacklist{
mapRule{
"Authorization": struct{}{},
"User-Agent": struct{}{},
},
},
}
// requiredSignedHeaders is a whitelist for build canonical headers.
var requiredSignedHeaders = rules{
whitelist{
mapRule{
"Cache-Control": struct{}{},
"Content-Disposition": struct{}{},
"Content-Encoding": struct{}{},
"Content-Language": struct{}{},
"Content-Md5": struct{}{},
"Content-Type": struct{}{},
"Expires": struct{}{},
"If-Match": struct{}{},
"If-Modified-Since": struct{}{},
"If-None-Match": struct{}{},
"If-Unmodified-Since": struct{}{},
"Range": struct{}{},
"X-Amz-Acl": struct{}{},
"X-Amz-Copy-Source": struct{}{},
"X-Amz-Copy-Source-If-Match": struct{}{},
"X-Amz-Copy-Source-If-Modified-Since": struct{}{},
"X-Amz-Copy-Source-If-None-Match": struct{}{},
"X-Amz-Copy-Source-If-Unmodified-Since": struct{}{},
"X-Amz-Copy-Source-Range": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Grant-Full-control": struct{}{},
"X-Amz-Grant-Read": struct{}{},
"X-Amz-Grant-Read-Acp": struct{}{},
"X-Amz-Grant-Write": struct{}{},
"X-Amz-Grant-Write-Acp": struct{}{},
"X-Amz-Metadata-Directive": struct{}{},
"X-Amz-Mfa": struct{}{},
"X-Amz-Request-Payer": struct{}{},
"X-Amz-Server-Side-Encryption": struct{}{},
"X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Storage-Class": struct{}{},
"X-Amz-Website-Redirect-Location": struct{}{},
},
},
patterns{"X-Amz-Meta-"},
}
// allowedHoisting is a whitelist for build query headers. The boolean value
// represents whether or not it is a pattern.
var allowedQueryHoisting = inclusiveRules{
blacklist{requiredSignedHeaders},
patterns{"X-Amz-"},
}
// Signer applies AWS v4 signing to given request. Use this to sign requests
// that need to be signed with AWS V4 Signatures.
type Signer struct {
// The authentication credentials the request will be signed against.
// This value must be set to sign requests.
Credentials *credentials.Credentials
// Sets the log level the signer should use when reporting information to
// the logger. If the logger is nil nothing will be logged. See
// aws.LogLevelType for more information on available logging levels
//
// By default nothing will be logged.
Debug aws.LogLevelType
// The logger loging information will be written to. If there the logger
// is nil, nothing will be logged.
Logger aws.Logger
// Disables the Signer's moving HTTP header key/value pairs from the HTTP
// request header to the request's query string. This is most commonly used
// with pre-signed requests preventing headers from being added to the
// request's query string.
DisableHeaderHoisting bool
// currentTimeFn returns the time value which represents the current time.
// This value should only be used for testing. If it is nil the default
// time.Now will be used.
currentTimeFn func() time.Time
}
// NewSigner returns a Signer pointer configured with the credentials and optional
// option values provided. If not options are provided the Signer will use its
// default configuration.
func NewSigner(credentials *credentials.Credentials, options ...func(*Signer)) *Signer {
v4 := &Signer{
Credentials: credentials,
}
for _, option := range options {
option(v4)
}
return v4
}
type signingCtx struct {
ServiceName string
Region string
Request *http.Request
Body io.ReadSeeker
Query url.Values
Time time.Time
ExpireTime time.Duration
SignedHeaderVals http.Header
credValues credentials.Value
isPresign bool
formattedTime string
formattedShortTime string
bodyDigest string
signedHeaders string
canonicalHeaders string
canonicalString string
credentialString string
stringToSign string
signature string
authorization string
}
// Sign signs AWS v4 requests with the provided body, service name, region the
// request is made to, and time the request is signed at. The signTime allows
// you to specify that a request is signed for the future, and cannot be
// used until then.
//
// Returns a list of HTTP headers that were included in the signature or an
// error if signing the request failed. Generally for signed requests this value
// is not needed as the full request context will be captured by the http.Request
// value. It is included for reference though.
//
// Sign will set the request's Body to be the `body` parameter passed in. If
// the body is not already an io.ReadCloser, it will be wrapped within one. If
// a `nil` body parameter passed to Sign, the request's Body field will be
// also set to nil. Its important to note that this functionality will not
// change the request's ContentLength of the request.
//
// Sign differs from Presign in that it will sign the request using HTTP
// header values. This type of signing is intended for http.Request values that
// will not be shared, or are shared in a way the header values on the request
// will not be lost.
//
// The requests body is an io.ReadSeeker so the SHA256 of the body can be
// generated. To bypass the signer computing the hash you can set the
// "X-Amz-Content-Sha256" header with a precomputed value. The signer will
// only compute the hash if the request header value is empty.
func (v4 Signer) Sign(r *http.Request, body io.ReadSeeker, service, region string, signTime time.Time) (http.Header, error) {
return v4.signWithBody(r, body, service, region, 0, signTime)
}
// Presign signs AWS v4 requests with the provided body, service name, region
// the request is made to, and time the request is signed at. The signTime
// allows you to specify that a request is signed for the future, and cannot
// be used until then.
//
// Returns a list of HTTP headers that were included in the signature or an
// error if signing the request failed. For presigned requests these headers
// and their values must be included on the HTTP request when it is made. This
// is helpful to know what header values need to be shared with the party the
// presigned request will be distributed to.
//
// Presign differs from Sign in that it will sign the request using query string
// instead of header values. This allows you to share the Presigned Request's
// URL with third parties, or distribute it throughout your system with minimal
// dependencies.
//
// Presign also takes an exp value which is the duration the
// signed request will be valid after the signing time. This is allows you to
// set when the request will expire.
//
// The requests body is an io.ReadSeeker so the SHA256 of the body can be
// generated. To bypass the signer computing the hash you can set the
// "X-Amz-Content-Sha256" header with a precomputed value. The signer will
// only compute the hash if the request header value is empty.
//
// Presigning a S3 request will not compute the body's SHA256 hash by default.
// This is done due to the general use case for S3 presigned URLs is to share
// PUT/GET capabilities. If you would like to include the body's SHA256 in the
// presigned request's signature you can set the "X-Amz-Content-Sha256"
// HTTP header and that will be included in the request's signature.
func (v4 Signer) Presign(r *http.Request, body io.ReadSeeker, service, region string, exp time.Duration, signTime time.Time) (http.Header, error) {
return v4.signWithBody(r, body, service, region, exp, signTime)
}
func (v4 Signer) signWithBody(r *http.Request, body io.ReadSeeker, service, region string, exp time.Duration, signTime time.Time) (http.Header, error) {
currentTimeFn := v4.currentTimeFn
if currentTimeFn == nil {
currentTimeFn = time.Now
}
ctx := &signingCtx{
Request: r,
Body: body,
Query: r.URL.Query(),
Time: signTime,
ExpireTime: exp,
isPresign: exp != 0,
ServiceName: service,
Region: region,
}
if ctx.isRequestSigned() {
if !v4.Credentials.IsExpired() && currentTimeFn().Before(ctx.Time.Add(10*time.Minute)) {
// If the request is already signed, and the credentials have not
// expired, and the request is not too old ignore the signing request.
return ctx.SignedHeaderVals, nil
}
ctx.Time = currentTimeFn()
ctx.handlePresignRemoval()
}
var err error
ctx.credValues, err = v4.Credentials.Get()
if err != nil {
return http.Header{}, err
}
ctx.assignAmzQueryValues()
ctx.build(v4.DisableHeaderHoisting)
// If the request is not presigned the body should be attached to it. This
// prevents the confusion of wanting to send a signed request without
// the body the request was signed for attached.
if !ctx.isPresign {
var reader io.ReadCloser
if body != nil {
var ok bool
if reader, ok = body.(io.ReadCloser); !ok {
reader = ioutil.NopCloser(body)
}
}
r.Body = reader
}
if v4.Debug.Matches(aws.LogDebugWithSigning) {
v4.logSigningInfo(ctx)
}
return ctx.SignedHeaderVals, nil
}
func (ctx *signingCtx) handlePresignRemoval() {
if !ctx.isPresign {
return
}
// The credentials have expired for this request. The current signing
// is invalid, and needs to be request because the request will fail.
ctx.removePresign()
// Update the request's query string to ensure the values stays in
// sync in the case retrieving the new credentials fails.
ctx.Request.URL.RawQuery = ctx.Query.Encode()
}
func (ctx *signingCtx) assignAmzQueryValues() {
if ctx.isPresign {
ctx.Query.Set("X-Amz-Algorithm", authHeaderPrefix)
if ctx.credValues.SessionToken != "" {
ctx.Query.Set("X-Amz-Security-Token", ctx.credValues.SessionToken)
} else {
ctx.Query.Del("X-Amz-Security-Token")
}
return
}
if ctx.credValues.SessionToken != "" {
ctx.Request.Header.Set("X-Amz-Security-Token", ctx.credValues.SessionToken)
}
}
// SignRequestHandler is a named request handler the SDK will use to sign
// service client request with using the V4 signature.
var SignRequestHandler = request.NamedHandler{
Name: "v4.SignRequestHandler", Fn: SignSDKRequest,
}
// SignSDKRequest signs an AWS request with the V4 signature. This
// request handler is bested used only with the SDK's built in service client's
// API operation requests.
//
// This function should not be used on its on its own, but in conjunction with
// an AWS service client's API operation call. To sign a standalone request
// not created by a service client's API operation method use the "Sign" or
// "Presign" functions of the "Signer" type.
//
// If the credentials of the request's config are set to
// credentials.AnonymousCredentials the request will not be signed.
func SignSDKRequest(req *request.Request) {
signSDKRequestWithCurrTime(req, time.Now)
}
func signSDKRequestWithCurrTime(req *request.Request, curTimeFn func() time.Time) {
// If the request does not need to be signed ignore the signing of the
// request if the AnonymousCredentials object is used.
if req.Config.Credentials == credentials.AnonymousCredentials {
return
}
region := req.ClientInfo.SigningRegion
if region == "" {
region = aws.StringValue(req.Config.Region)
}
name := req.ClientInfo.SigningName
if name == "" {
name = req.ClientInfo.ServiceName
}
v4 := NewSigner(req.Config.Credentials, func(v4 *Signer) {
v4.Debug = req.Config.LogLevel.Value()
v4.Logger = req.Config.Logger
v4.DisableHeaderHoisting = req.NotHoist
v4.currentTimeFn = curTimeFn
})
signingTime := req.Time
if !req.LastSignedAt.IsZero() {
signingTime = req.LastSignedAt
}
signedHeaders, err := v4.signWithBody(req.HTTPRequest, req.Body, name, region, req.ExpireTime, signingTime)
if err != nil {
req.Error = err
req.SignedHeaderVals = nil
return
}
req.SignedHeaderVals = signedHeaders
req.LastSignedAt = curTimeFn()
}
const logSignInfoMsg = `DEBUG: Request Signature:
---[ CANONICAL STRING ]-----------------------------
%s
---[ STRING TO SIGN ]--------------------------------
%s%s
-----------------------------------------------------`
const logSignedURLMsg = `
---[ SIGNED URL ]------------------------------------
%s`
func (v4 *Signer) logSigningInfo(ctx *signingCtx) {
signedURLMsg := ""
if ctx.isPresign {
signedURLMsg = fmt.Sprintf(logSignedURLMsg, ctx.Request.URL.String())
}
msg := fmt.Sprintf(logSignInfoMsg, ctx.canonicalString, ctx.stringToSign, signedURLMsg)
v4.Logger.Log(msg)
}
func (ctx *signingCtx) build(disableHeaderHoisting bool) {
ctx.buildTime() // no depends
ctx.buildCredentialString() // no depends
unsignedHeaders := ctx.Request.Header
if ctx.isPresign {
if !disableHeaderHoisting {
urlValues := url.Values{}
urlValues, unsignedHeaders = buildQuery(allowedQueryHoisting, unsignedHeaders) // no depends
for k := range urlValues {
ctx.Query[k] = urlValues[k]
}
}
}
ctx.buildBodyDigest()
ctx.buildCanonicalHeaders(ignoredHeaders, unsignedHeaders)
ctx.buildCanonicalString() // depends on canon headers / signed headers
ctx.buildStringToSign() // depends on canon string
ctx.buildSignature() // depends on string to sign
if ctx.isPresign {
ctx.Request.URL.RawQuery += "&X-Amz-Signature=" + ctx.signature
} else {
parts := []string{
authHeaderPrefix + " Credential=" + ctx.credValues.AccessKeyID + "/" + ctx.credentialString,
"SignedHeaders=" + ctx.signedHeaders,
"Signature=" + ctx.signature,
}
ctx.Request.Header.Set("Authorization", strings.Join(parts, ", "))
}
}
func (ctx *signingCtx) buildTime() {
ctx.formattedTime = ctx.Time.UTC().Format(timeFormat)
ctx.formattedShortTime = ctx.Time.UTC().Format(shortTimeFormat)
if ctx.isPresign {
duration := int64(ctx.ExpireTime / time.Second)
ctx.Query.Set("X-Amz-Date", ctx.formattedTime)
ctx.Query.Set("X-Amz-Expires", strconv.FormatInt(duration, 10))
} else {
ctx.Request.Header.Set("X-Amz-Date", ctx.formattedTime)
}
}
func (ctx *signingCtx) buildCredentialString() {
ctx.credentialString = strings.Join([]string{
ctx.formattedShortTime,
ctx.Region,
ctx.ServiceName,
"aws4_request",
}, "/")
if ctx.isPresign {
ctx.Query.Set("X-Amz-Credential", ctx.credValues.AccessKeyID+"/"+ctx.credentialString)
}
}
func buildQuery(r rule, header http.Header) (url.Values, http.Header) {
query := url.Values{}
unsignedHeaders := http.Header{}
for k, h := range header {
if r.IsValid(k) {
query[k] = h
} else {
unsignedHeaders[k] = h
}
}
return query, unsignedHeaders
}
func (ctx *signingCtx) buildCanonicalHeaders(r rule, header http.Header) {
var headers []string
headers = append(headers, "host")
for k, v := range header {
canonicalKey := http.CanonicalHeaderKey(k)
if !r.IsValid(canonicalKey) {
continue // ignored header
}
if ctx.SignedHeaderVals == nil {
ctx.SignedHeaderVals = make(http.Header)
}
lowerCaseKey := strings.ToLower(k)
if _, ok := ctx.SignedHeaderVals[lowerCaseKey]; ok {
// include additional values
ctx.SignedHeaderVals[lowerCaseKey] = append(ctx.SignedHeaderVals[lowerCaseKey], v...)
continue
}
headers = append(headers, lowerCaseKey)
ctx.SignedHeaderVals[lowerCaseKey] = v
}
sort.Strings(headers)
ctx.signedHeaders = strings.Join(headers, ";")
if ctx.isPresign {
ctx.Query.Set("X-Amz-SignedHeaders", ctx.signedHeaders)
}
headerValues := make([]string, len(headers))
for i, k := range headers {
if k == "host" {
headerValues[i] = "host:" + ctx.Request.URL.Host
} else {
headerValues[i] = k + ":" +
strings.Join(ctx.SignedHeaderVals[k], ",")
}
}
ctx.canonicalHeaders = strings.Join(stripExcessSpaces(headerValues), "\n")
}
func (ctx *signingCtx) buildCanonicalString() {
ctx.Request.URL.RawQuery = strings.Replace(ctx.Query.Encode(), "+", "%20", -1)
uri := ctx.Request.URL.Opaque
if uri != "" {
uri = "/" + strings.Join(strings.Split(uri, "/")[3:], "/")
} else {
uri = ctx.Request.URL.Path
}
if uri == "" {
uri = "/"
}
if ctx.ServiceName != "s3" {
uri = rest.EscapePath(uri, false)
}
ctx.canonicalString = strings.Join([]string{
ctx.Request.Method,
uri,
ctx.Request.URL.RawQuery,
ctx.canonicalHeaders + "\n",
ctx.signedHeaders,
ctx.bodyDigest,
}, "\n")
}
func (ctx *signingCtx) buildStringToSign() {
ctx.stringToSign = strings.Join([]string{
authHeaderPrefix,
ctx.formattedTime,
ctx.credentialString,
hex.EncodeToString(makeSha256([]byte(ctx.canonicalString))),
}, "\n")
}
func (ctx *signingCtx) buildSignature() {
secret := ctx.credValues.SecretAccessKey
date := makeHmac([]byte("AWS4"+secret), []byte(ctx.formattedShortTime))
region := makeHmac(date, []byte(ctx.Region))
service := makeHmac(region, []byte(ctx.ServiceName))
credentials := makeHmac(service, []byte("aws4_request"))
signature := makeHmac(credentials, []byte(ctx.stringToSign))
ctx.signature = hex.EncodeToString(signature)
}
func (ctx *signingCtx) buildBodyDigest() {
hash := ctx.Request.Header.Get("X-Amz-Content-Sha256")
if hash == "" {
if ctx.isPresign && ctx.ServiceName == "s3" {
hash = "UNSIGNED-PAYLOAD"
} else if ctx.Body == nil {
hash = emptyStringSHA256
} else {
hash = hex.EncodeToString(makeSha256Reader(ctx.Body))
}
if ctx.ServiceName == "s3" || ctx.ServiceName == "glacier" {
ctx.Request.Header.Set("X-Amz-Content-Sha256", hash)
}
}
ctx.bodyDigest = hash
}
// isRequestSigned returns if the request is currently signed or presigned
func (ctx *signingCtx) isRequestSigned() bool {
if ctx.isPresign && ctx.Query.Get("X-Amz-Signature") != "" {
return true
}
if ctx.Request.Header.Get("Authorization") != "" {
return true
}
return false
}
// unsign removes signing flags for both signed and presigned requests.
func (ctx *signingCtx) removePresign() {
ctx.Query.Del("X-Amz-Algorithm")
ctx.Query.Del("X-Amz-Signature")
ctx.Query.Del("X-Amz-Security-Token")
ctx.Query.Del("X-Amz-Date")
ctx.Query.Del("X-Amz-Expires")
ctx.Query.Del("X-Amz-Credential")
ctx.Query.Del("X-Amz-SignedHeaders")
}
func makeHmac(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256(data []byte) []byte {
hash := sha256.New()
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256Reader(reader io.ReadSeeker) []byte {
hash := sha256.New()
start, _ := reader.Seek(0, 1)
defer reader.Seek(start, 0)
io.Copy(hash, reader)
return hash.Sum(nil)
}
const doubleSpaces = " "
var doubleSpaceBytes = []byte(doubleSpaces)
func stripExcessSpaces(headerVals []string) []string {
vals := make([]string, len(headerVals))
for i, str := range headerVals {
// Trim leading and trailing spaces
trimmed := strings.TrimSpace(str)
idx := strings.Index(trimmed, doubleSpaces)
var buf []byte
for idx > -1 {
// Multiple adjacent spaces found
if buf == nil {
// first time create the buffer
buf = []byte(trimmed)
}
stripToIdx := -1
for j := idx + 1; j < len(buf); j++ {
if buf[j] != ' ' {
buf = append(buf[:idx+1], buf[j:]...)
stripToIdx = j
break
}
}
if stripToIdx >= 0 {
idx = bytes.Index(buf[stripToIdx:], doubleSpaceBytes)
if idx >= 0 {
idx += stripToIdx
}
} else {
idx = -1
}
}
if buf != nil {
vals[i] = string(buf)
} else {
vals[i] = trimmed
}
}
return vals
}

106
vendor/github.com/aws/aws-sdk-go/aws/types.go generated vendored Normal file
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@ -0,0 +1,106 @@
package aws
import (
"io"
"sync"
)
// ReadSeekCloser wraps a io.Reader returning a ReaderSeekerCloser
func ReadSeekCloser(r io.Reader) ReaderSeekerCloser {
return ReaderSeekerCloser{r}
}
// ReaderSeekerCloser represents a reader that can also delegate io.Seeker and
// io.Closer interfaces to the underlying object if they are available.
type ReaderSeekerCloser struct {
r io.Reader
}
// Read reads from the reader up to size of p. The number of bytes read, and
// error if it occurred will be returned.
//
// If the reader is not an io.Reader zero bytes read, and nil error will be returned.
//
// Performs the same functionality as io.Reader Read
func (r ReaderSeekerCloser) Read(p []byte) (int, error) {
switch t := r.r.(type) {
case io.Reader:
return t.Read(p)
}
return 0, nil
}
// Seek sets the offset for the next Read to offset, interpreted according to
// whence: 0 means relative to the origin of the file, 1 means relative to the
// current offset, and 2 means relative to the end. Seek returns the new offset
// and an error, if any.
//
// If the ReaderSeekerCloser is not an io.Seeker nothing will be done.
func (r ReaderSeekerCloser) Seek(offset int64, whence int) (int64, error) {
switch t := r.r.(type) {
case io.Seeker:
return t.Seek(offset, whence)
}
return int64(0), nil
}
// Close closes the ReaderSeekerCloser.
//
// If the ReaderSeekerCloser is not an io.Closer nothing will be done.
func (r ReaderSeekerCloser) Close() error {
switch t := r.r.(type) {
case io.Closer:
return t.Close()
}
return nil
}
// A WriteAtBuffer provides a in memory buffer supporting the io.WriterAt interface
// Can be used with the s3manager.Downloader to download content to a buffer
// in memory. Safe to use concurrently.
type WriteAtBuffer struct {
buf []byte
m sync.Mutex
// GrowthCoeff defines the growth rate of the internal buffer. By
// default, the growth rate is 1, where expanding the internal
// buffer will allocate only enough capacity to fit the new expected
// length.
GrowthCoeff float64
}
// NewWriteAtBuffer creates a WriteAtBuffer with an internal buffer
// provided by buf.
func NewWriteAtBuffer(buf []byte) *WriteAtBuffer {
return &WriteAtBuffer{buf: buf}
}
// WriteAt writes a slice of bytes to a buffer starting at the position provided
// The number of bytes written will be returned, or error. Can overwrite previous
// written slices if the write ats overlap.
func (b *WriteAtBuffer) WriteAt(p []byte, pos int64) (n int, err error) {
pLen := len(p)
expLen := pos + int64(pLen)
b.m.Lock()
defer b.m.Unlock()
if int64(len(b.buf)) < expLen {
if int64(cap(b.buf)) < expLen {
if b.GrowthCoeff < 1 {
b.GrowthCoeff = 1
}
newBuf := make([]byte, expLen, int64(b.GrowthCoeff*float64(expLen)))
copy(newBuf, b.buf)
b.buf = newBuf
}
b.buf = b.buf[:expLen]
}
copy(b.buf[pos:], p)
return pLen, nil
}
// Bytes returns a slice of bytes written to the buffer.
func (b *WriteAtBuffer) Bytes() []byte {
b.m.Lock()
defer b.m.Unlock()
return b.buf[:len(b.buf):len(b.buf)]
}

8
vendor/github.com/aws/aws-sdk-go/aws/version.go generated vendored Normal file
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@ -0,0 +1,8 @@
// Package aws provides core functionality for making requests to AWS services.
package aws
// SDKName is the name of this AWS SDK
const SDKName = "aws-sdk-go"
// SDKVersion is the version of this SDK
const SDKVersion = "1.4.14"

70
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints.go generated vendored Normal file
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@ -0,0 +1,70 @@
// Package endpoints validates regional endpoints for services.
package endpoints
//go:generate go run ../model/cli/gen-endpoints/main.go endpoints.json endpoints_map.go
//go:generate gofmt -s -w endpoints_map.go
import (
"fmt"
"regexp"
"strings"
)
// NormalizeEndpoint takes and endpoint and service API information to return a
// normalized endpoint and signing region. If the endpoint is not an empty string
// the service name and region will be used to look up the service's API endpoint.
// If the endpoint is provided the scheme will be added if it is not present.
func NormalizeEndpoint(endpoint, serviceName, region string, disableSSL, useDualStack bool) (normEndpoint, signingRegion string) {
if endpoint == "" {
return EndpointForRegion(serviceName, region, disableSSL, useDualStack)
}
return AddScheme(endpoint, disableSSL), ""
}
// EndpointForRegion returns an endpoint and its signing region for a service and region.
// if the service and region pair are not found endpoint and signingRegion will be empty.
func EndpointForRegion(svcName, region string, disableSSL, useDualStack bool) (endpoint, signingRegion string) {
dualStackField := ""
if useDualStack {
dualStackField = "/dualstack"
}
derivedKeys := []string{
region + "/" + svcName + dualStackField,
region + "/*" + dualStackField,
"*/" + svcName + dualStackField,
"*/*" + dualStackField,
}
for _, key := range derivedKeys {
if val, ok := endpointsMap.Endpoints[key]; ok {
ep := val.Endpoint
ep = strings.Replace(ep, "{region}", region, -1)
ep = strings.Replace(ep, "{service}", svcName, -1)
endpoint = ep
signingRegion = val.SigningRegion
break
}
}
return AddScheme(endpoint, disableSSL), signingRegion
}
// Regular expression to determine if the endpoint string is prefixed with a scheme.
var schemeRE = regexp.MustCompile("^([^:]+)://")
// AddScheme adds the HTTP or HTTPS schemes to a endpoint URL if there is no
// scheme. If disableSSL is true HTTP will be added instead of the default HTTPS.
func AddScheme(endpoint string, disableSSL bool) string {
if endpoint != "" && !schemeRE.MatchString(endpoint) {
scheme := "https"
if disableSSL {
scheme = "http"
}
endpoint = fmt.Sprintf("%s://%s", scheme, endpoint)
}
return endpoint
}

78
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json generated vendored Normal file
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@ -0,0 +1,78 @@
{
"version": 2,
"endpoints": {
"*/*": {
"endpoint": "{service}.{region}.amazonaws.com"
},
"cn-north-1/*": {
"endpoint": "{service}.{region}.amazonaws.com.cn",
"signatureVersion": "v4"
},
"cn-north-1/ec2metadata": {
"endpoint": "http://169.254.169.254/latest"
},
"us-gov-west-1/iam": {
"endpoint": "iam.us-gov.amazonaws.com"
},
"us-gov-west-1/sts": {
"endpoint": "sts.us-gov-west-1.amazonaws.com"
},
"us-gov-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"us-gov-west-1/ec2metadata": {
"endpoint": "http://169.254.169.254/latest"
},
"*/cloudfront": {
"endpoint": "cloudfront.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/cloudsearchdomain": {
"endpoint": "",
"signingRegion": "us-east-1"
},
"*/data.iot": {
"endpoint": "",
"signingRegion": "us-east-1"
},
"*/ec2metadata": {
"endpoint": "http://169.254.169.254/latest"
},
"*/iam": {
"endpoint": "iam.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/importexport": {
"endpoint": "importexport.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/route53": {
"endpoint": "route53.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/sts": {
"endpoint": "sts.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/waf": {
"endpoint": "waf.amazonaws.com",
"signingRegion": "us-east-1"
},
"us-east-1/sdb": {
"endpoint": "sdb.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"*/s3/dualstack": {
"endpoint": "s3.dualstack.{region}.amazonaws.com"
},
"us-east-1/s3": {
"endpoint": "s3.amazonaws.com"
},
"eu-central-1/s3": {
"endpoint": "{service}.{region}.amazonaws.com"
}
}
}

91
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go generated vendored Normal file
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package endpoints
// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
type endpointStruct struct {
Version int
Endpoints map[string]endpointEntry
}
type endpointEntry struct {
Endpoint string
SigningRegion string
}
var endpointsMap = endpointStruct{
Version: 2,
Endpoints: map[string]endpointEntry{
"*/*": {
Endpoint: "{service}.{region}.amazonaws.com",
},
"*/cloudfront": {
Endpoint: "cloudfront.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/cloudsearchdomain": {
Endpoint: "",
SigningRegion: "us-east-1",
},
"*/data.iot": {
Endpoint: "",
SigningRegion: "us-east-1",
},
"*/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
},
"*/iam": {
Endpoint: "iam.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/importexport": {
Endpoint: "importexport.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/route53": {
Endpoint: "route53.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"*/s3/dualstack": {
Endpoint: "s3.dualstack.{region}.amazonaws.com",
},
"*/sts": {
Endpoint: "sts.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/waf": {
Endpoint: "waf.amazonaws.com",
SigningRegion: "us-east-1",
},
"cn-north-1/*": {
Endpoint: "{service}.{region}.amazonaws.com.cn",
},
"cn-north-1/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
},
"eu-central-1/s3": {
Endpoint: "{service}.{region}.amazonaws.com",
},
"us-east-1/s3": {
Endpoint: "s3.amazonaws.com",
},
"us-east-1/sdb": {
Endpoint: "sdb.amazonaws.com",
SigningRegion: "us-east-1",
},
"us-gov-west-1/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
},
"us-gov-west-1/iam": {
Endpoint: "iam.us-gov.amazonaws.com",
},
"us-gov-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-gov-west-1/sts": {
Endpoint: "sts.us-gov-west-1.amazonaws.com",
},
},
}

75
vendor/github.com/aws/aws-sdk-go/private/protocol/idempotency.go generated vendored Normal file
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@ -0,0 +1,75 @@
package protocol
import (
"crypto/rand"
"fmt"
"reflect"
)
// RandReader is the random reader the protocol package will use to read
// random bytes from. This is exported for testing, and should not be used.
var RandReader = rand.Reader
const idempotencyTokenFillTag = `idempotencyToken`
// CanSetIdempotencyToken returns true if the struct field should be
// automatically populated with a Idempotency token.
//
// Only *string and string type fields that are tagged with idempotencyToken
// which are not already set can be auto filled.
func CanSetIdempotencyToken(v reflect.Value, f reflect.StructField) bool {
switch u := v.Interface().(type) {
// To auto fill an Idempotency token the field must be a string,
// tagged for auto fill, and have a zero value.
case *string:
return u == nil && len(f.Tag.Get(idempotencyTokenFillTag)) != 0
case string:
return len(u) == 0 && len(f.Tag.Get(idempotencyTokenFillTag)) != 0
}
return false
}
// GetIdempotencyToken returns a randomly generated idempotency token.
func GetIdempotencyToken() string {
b := make([]byte, 16)
RandReader.Read(b)
return UUIDVersion4(b)
}
// SetIdempotencyToken will set the value provided with a Idempotency Token.
// Given that the value can be set. Will panic if value is not setable.
func SetIdempotencyToken(v reflect.Value) {
if v.Kind() == reflect.Ptr {
if v.IsNil() && v.CanSet() {
v.Set(reflect.New(v.Type().Elem()))
}
v = v.Elem()
}
v = reflect.Indirect(v)
if !v.CanSet() {
panic(fmt.Sprintf("unable to set idempotnecy token %v", v))
}
b := make([]byte, 16)
_, err := rand.Read(b)
if err != nil {
// TODO handle error
return
}
v.Set(reflect.ValueOf(UUIDVersion4(b)))
}
// UUIDVersion4 returns a Version 4 random UUID from the byte slice provided
func UUIDVersion4(u []byte) string {
// https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_.28random.29
// 13th character is "4"
u[6] = (u[6] | 0x40) & 0x4F
// 17th character is "8", "9", "a", or "b"
u[8] = (u[8] | 0x80) & 0xBF
return fmt.Sprintf(`%X-%X-%X-%X-%X`, u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
}

36
vendor/github.com/aws/aws-sdk-go/private/protocol/query/build.go generated vendored Normal file
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@ -0,0 +1,36 @@
// Package query provides serialization of AWS query requests, and responses.
package query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/query.json build_test.go
import (
"net/url"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/query/queryutil"
)
// BuildHandler is a named request handler for building query protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.query.Build", Fn: Build}
// Build builds a request for an AWS Query service.
func Build(r *request.Request) {
body := url.Values{
"Action": {r.Operation.Name},
"Version": {r.ClientInfo.APIVersion},
}
if err := queryutil.Parse(body, r.Params, false); err != nil {
r.Error = awserr.New("SerializationError", "failed encoding Query request", err)
return
}
if r.ExpireTime == 0 {
r.HTTPRequest.Method = "POST"
r.HTTPRequest.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
r.SetBufferBody([]byte(body.Encode()))
} else { // This is a pre-signed request
r.HTTPRequest.Method = "GET"
r.HTTPRequest.URL.RawQuery = body.Encode()
}
}

230
vendor/github.com/aws/aws-sdk-go/private/protocol/query/queryutil/queryutil.go generated vendored Normal file
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@ -0,0 +1,230 @@
package queryutil
import (
"encoding/base64"
"fmt"
"net/url"
"reflect"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// Parse parses an object i and fills a url.Values object. The isEC2 flag
// indicates if this is the EC2 Query sub-protocol.
func Parse(body url.Values, i interface{}, isEC2 bool) error {
q := queryParser{isEC2: isEC2}
return q.parseValue(body, reflect.ValueOf(i), "", "")
}
func elemOf(value reflect.Value) reflect.Value {
for value.Kind() == reflect.Ptr {
value = value.Elem()
}
return value
}
type queryParser struct {
isEC2 bool
}
func (q *queryParser) parseValue(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
value = elemOf(value)
// no need to handle zero values
if !value.IsValid() {
return nil
}
t := tag.Get("type")
if t == "" {
switch value.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
return q.parseStruct(v, value, prefix)
case "list":
return q.parseList(v, value, prefix, tag)
case "map":
return q.parseMap(v, value, prefix, tag)
default:
return q.parseScalar(v, value, prefix, tag)
}
}
func (q *queryParser) parseStruct(v url.Values, value reflect.Value, prefix string) error {
if !value.IsValid() {
return nil
}
t := value.Type()
for i := 0; i < value.NumField(); i++ {
elemValue := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
elemValue = reflect.ValueOf(token)
}
var name string
if q.isEC2 {
name = field.Tag.Get("queryName")
}
if name == "" {
if field.Tag.Get("flattened") != "" && field.Tag.Get("locationNameList") != "" {
name = field.Tag.Get("locationNameList")
} else if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
if name != "" && q.isEC2 {
name = strings.ToUpper(name[0:1]) + name[1:]
}
}
if name == "" {
name = field.Name
}
if prefix != "" {
name = prefix + "." + name
}
if err := q.parseValue(v, elemValue, name, field.Tag); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseList(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
// If it's empty, generate an empty value
if !value.IsNil() && value.Len() == 0 {
v.Set(prefix, "")
return nil
}
// check for unflattened list member
if !q.isEC2 && tag.Get("flattened") == "" {
prefix += ".member"
}
for i := 0; i < value.Len(); i++ {
slicePrefix := prefix
if slicePrefix == "" {
slicePrefix = strconv.Itoa(i + 1)
} else {
slicePrefix = slicePrefix + "." + strconv.Itoa(i+1)
}
if err := q.parseValue(v, value.Index(i), slicePrefix, ""); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseMap(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
// If it's empty, generate an empty value
if !value.IsNil() && value.Len() == 0 {
v.Set(prefix, "")
return nil
}
// check for unflattened list member
if !q.isEC2 && tag.Get("flattened") == "" {
prefix += ".entry"
}
// sort keys for improved serialization consistency.
// this is not strictly necessary for protocol support.
mapKeyValues := value.MapKeys()
mapKeys := map[string]reflect.Value{}
mapKeyNames := make([]string, len(mapKeyValues))
for i, mapKey := range mapKeyValues {
name := mapKey.String()
mapKeys[name] = mapKey
mapKeyNames[i] = name
}
sort.Strings(mapKeyNames)
for i, mapKeyName := range mapKeyNames {
mapKey := mapKeys[mapKeyName]
mapValue := value.MapIndex(mapKey)
kname := tag.Get("locationNameKey")
if kname == "" {
kname = "key"
}
vname := tag.Get("locationNameValue")
if vname == "" {
vname = "value"
}
// serialize key
var keyName string
if prefix == "" {
keyName = strconv.Itoa(i+1) + "." + kname
} else {
keyName = prefix + "." + strconv.Itoa(i+1) + "." + kname
}
if err := q.parseValue(v, mapKey, keyName, ""); err != nil {
return err
}
// serialize value
var valueName string
if prefix == "" {
valueName = strconv.Itoa(i+1) + "." + vname
} else {
valueName = prefix + "." + strconv.Itoa(i+1) + "." + vname
}
if err := q.parseValue(v, mapValue, valueName, ""); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseScalar(v url.Values, r reflect.Value, name string, tag reflect.StructTag) error {
switch value := r.Interface().(type) {
case string:
v.Set(name, value)
case []byte:
if !r.IsNil() {
v.Set(name, base64.StdEncoding.EncodeToString(value))
}
case bool:
v.Set(name, strconv.FormatBool(value))
case int64:
v.Set(name, strconv.FormatInt(value, 10))
case int:
v.Set(name, strconv.Itoa(value))
case float64:
v.Set(name, strconv.FormatFloat(value, 'f', -1, 64))
case float32:
v.Set(name, strconv.FormatFloat(float64(value), 'f', -1, 32))
case time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
v.Set(name, value.UTC().Format(ISO8601UTC))
default:
return fmt.Errorf("unsupported value for param %s: %v (%s)", name, r.Interface(), r.Type().Name())
}
return nil
}

35
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal.go generated vendored Normal file
View file

@ -0,0 +1,35 @@
package query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/query.json unmarshal_test.go
import (
"encoding/xml"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// UnmarshalHandler is a named request handler for unmarshaling query protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.query.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling query protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalMeta", Fn: UnmarshalMeta}
// Unmarshal unmarshals a response for an AWS Query service.
func Unmarshal(r *request.Request) {
defer r.HTTPResponse.Body.Close()
if r.DataFilled() {
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, r.Operation.Name+"Result")
if err != nil {
r.Error = awserr.New("SerializationError", "failed decoding Query response", err)
return
}
}
}
// UnmarshalMeta unmarshals header response values for an AWS Query service.
func UnmarshalMeta(r *request.Request) {
r.RequestID = r.HTTPResponse.Header.Get("X-Amzn-Requestid")
}

66
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal_error.go generated vendored Normal file
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package query
import (
"encoding/xml"
"io/ioutil"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
type xmlErrorResponse struct {
XMLName xml.Name `xml:"ErrorResponse"`
Code string `xml:"Error>Code"`
Message string `xml:"Error>Message"`
RequestID string `xml:"RequestId"`
}
type xmlServiceUnavailableResponse struct {
XMLName xml.Name `xml:"ServiceUnavailableException"`
}
// UnmarshalErrorHandler is a name request handler to unmarshal request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalError", Fn: UnmarshalError}
// UnmarshalError unmarshals an error response for an AWS Query service.
func UnmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
bodyBytes, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to read from query HTTP response body", err)
return
}
// First check for specific error
resp := xmlErrorResponse{}
decodeErr := xml.Unmarshal(bodyBytes, &resp)
if decodeErr == nil {
reqID := resp.RequestID
if reqID == "" {
reqID = r.RequestID
}
r.Error = awserr.NewRequestFailure(
awserr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
reqID,
)
return
}
// Check for unhandled error
servUnavailResp := xmlServiceUnavailableResponse{}
unavailErr := xml.Unmarshal(bodyBytes, &servUnavailResp)
if unavailErr == nil {
r.Error = awserr.NewRequestFailure(
awserr.New("ServiceUnavailableException", "service is unavailable", nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
return
}
// Failed to retrieve any error message from the response body
r.Error = awserr.New("SerializationError",
"failed to decode query XML error response", decodeErr)
}

256
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/build.go generated vendored Normal file
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// Package rest provides RESTful serialization of AWS requests and responses.
package rest
import (
"bytes"
"encoding/base64"
"fmt"
"io"
"net/http"
"net/url"
"path"
"reflect"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// RFC822 returns an RFC822 formatted timestamp for AWS protocols
const RFC822 = "Mon, 2 Jan 2006 15:04:05 GMT"
// Whether the byte value can be sent without escaping in AWS URLs
var noEscape [256]bool
var errValueNotSet = fmt.Errorf("value not set")
func init() {
for i := 0; i < len(noEscape); i++ {
// AWS expects every character except these to be escaped
noEscape[i] = (i >= 'A' && i <= 'Z') ||
(i >= 'a' && i <= 'z') ||
(i >= '0' && i <= '9') ||
i == '-' ||
i == '.' ||
i == '_' ||
i == '~'
}
}
// BuildHandler is a named request handler for building rest protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.rest.Build", Fn: Build}
// Build builds the REST component of a service request.
func Build(r *request.Request) {
if r.ParamsFilled() {
v := reflect.ValueOf(r.Params).Elem()
buildLocationElements(r, v)
buildBody(r, v)
}
}
func buildLocationElements(r *request.Request, v reflect.Value) {
query := r.HTTPRequest.URL.Query()
for i := 0; i < v.NumField(); i++ {
m := v.Field(i)
if n := v.Type().Field(i).Name; n[0:1] == strings.ToLower(n[0:1]) {
continue
}
if m.IsValid() {
field := v.Type().Field(i)
name := field.Tag.Get("locationName")
if name == "" {
name = field.Name
}
if m.Kind() == reflect.Ptr {
m = m.Elem()
}
if !m.IsValid() {
continue
}
var err error
switch field.Tag.Get("location") {
case "headers": // header maps
err = buildHeaderMap(&r.HTTPRequest.Header, m, field.Tag.Get("locationName"))
case "header":
err = buildHeader(&r.HTTPRequest.Header, m, name)
case "uri":
err = buildURI(r.HTTPRequest.URL, m, name)
case "querystring":
err = buildQueryString(query, m, name)
}
r.Error = err
}
if r.Error != nil {
return
}
}
r.HTTPRequest.URL.RawQuery = query.Encode()
updatePath(r.HTTPRequest.URL, r.HTTPRequest.URL.Path)
}
func buildBody(r *request.Request, v reflect.Value) {
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
pfield, _ := v.Type().FieldByName(payloadName)
if ptag := pfield.Tag.Get("type"); ptag != "" && ptag != "structure" {
payload := reflect.Indirect(v.FieldByName(payloadName))
if payload.IsValid() && payload.Interface() != nil {
switch reader := payload.Interface().(type) {
case io.ReadSeeker:
r.SetReaderBody(reader)
case []byte:
r.SetBufferBody(reader)
case string:
r.SetStringBody(reader)
default:
r.Error = awserr.New("SerializationError",
"failed to encode REST request",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
func buildHeader(header *http.Header, v reflect.Value, name string) error {
str, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
header.Add(name, str)
return nil
}
func buildHeaderMap(header *http.Header, v reflect.Value, prefix string) error {
for _, key := range v.MapKeys() {
str, err := convertType(v.MapIndex(key))
if err == errValueNotSet {
continue
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
header.Add(prefix+key.String(), str)
}
return nil
}
func buildURI(u *url.URL, v reflect.Value, name string) error {
value, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
uri := u.Path
uri = strings.Replace(uri, "{"+name+"}", EscapePath(value, true), -1)
uri = strings.Replace(uri, "{"+name+"+}", EscapePath(value, false), -1)
u.Path = uri
return nil
}
func buildQueryString(query url.Values, v reflect.Value, name string) error {
switch value := v.Interface().(type) {
case []*string:
for _, item := range value {
query.Add(name, *item)
}
case map[string]*string:
for key, item := range value {
query.Add(key, *item)
}
case map[string][]*string:
for key, items := range value {
for _, item := range items {
query.Add(key, *item)
}
}
default:
str, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
query.Set(name, str)
}
return nil
}
func updatePath(url *url.URL, urlPath string) {
scheme, query := url.Scheme, url.RawQuery
hasSlash := strings.HasSuffix(urlPath, "/")
// clean up path
urlPath = path.Clean(urlPath)
if hasSlash && !strings.HasSuffix(urlPath, "/") {
urlPath += "/"
}
// get formatted URL minus scheme so we can build this into Opaque
url.Scheme, url.Path, url.RawQuery = "", "", ""
s := url.String()
url.Scheme = scheme
url.RawQuery = query
// build opaque URI
url.Opaque = s + urlPath
}
// EscapePath escapes part of a URL path in Amazon style
func EscapePath(path string, encodeSep bool) string {
var buf bytes.Buffer
for i := 0; i < len(path); i++ {
c := path[i]
if noEscape[c] || (c == '/' && !encodeSep) {
buf.WriteByte(c)
} else {
fmt.Fprintf(&buf, "%%%02X", c)
}
}
return buf.String()
}
func convertType(v reflect.Value) (string, error) {
v = reflect.Indirect(v)
if !v.IsValid() {
return "", errValueNotSet
}
var str string
switch value := v.Interface().(type) {
case string:
str = value
case []byte:
str = base64.StdEncoding.EncodeToString(value)
case bool:
str = strconv.FormatBool(value)
case int64:
str = strconv.FormatInt(value, 10)
case float64:
str = strconv.FormatFloat(value, 'f', -1, 64)
case time.Time:
str = value.UTC().Format(RFC822)
default:
err := fmt.Errorf("Unsupported value for param %v (%s)", v.Interface(), v.Type())
return "", err
}
return str, nil
}

45
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/payload.go generated vendored Normal file
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@ -0,0 +1,45 @@
package rest
import "reflect"
// PayloadMember returns the payload field member of i if there is one, or nil.
func PayloadMember(i interface{}) interface{} {
if i == nil {
return nil
}
v := reflect.ValueOf(i).Elem()
if !v.IsValid() {
return nil
}
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
field, _ := v.Type().FieldByName(payloadName)
if field.Tag.Get("type") != "structure" {
return nil
}
payload := v.FieldByName(payloadName)
if payload.IsValid() || (payload.Kind() == reflect.Ptr && !payload.IsNil()) {
return payload.Interface()
}
}
}
return nil
}
// PayloadType returns the type of a payload field member of i if there is one, or "".
func PayloadType(i interface{}) string {
v := reflect.Indirect(reflect.ValueOf(i))
if !v.IsValid() {
return ""
}
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
if member, ok := v.Type().FieldByName(payloadName); ok {
return member.Tag.Get("type")
}
}
}
return ""
}

198
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/unmarshal.go generated vendored Normal file
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@ -0,0 +1,198 @@
package rest
import (
"encoding/base64"
"fmt"
"io"
"io/ioutil"
"net/http"
"reflect"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// UnmarshalHandler is a named request handler for unmarshaling rest protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.rest.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling rest protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.rest.UnmarshalMeta", Fn: UnmarshalMeta}
// Unmarshal unmarshals the REST component of a response in a REST service.
func Unmarshal(r *request.Request) {
if r.DataFilled() {
v := reflect.Indirect(reflect.ValueOf(r.Data))
unmarshalBody(r, v)
}
}
// UnmarshalMeta unmarshals the REST metadata of a response in a REST service
func UnmarshalMeta(r *request.Request) {
r.RequestID = r.HTTPResponse.Header.Get("X-Amzn-Requestid")
if r.RequestID == "" {
// Alternative version of request id in the header
r.RequestID = r.HTTPResponse.Header.Get("X-Amz-Request-Id")
}
if r.DataFilled() {
v := reflect.Indirect(reflect.ValueOf(r.Data))
unmarshalLocationElements(r, v)
}
}
func unmarshalBody(r *request.Request, v reflect.Value) {
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
pfield, _ := v.Type().FieldByName(payloadName)
if ptag := pfield.Tag.Get("type"); ptag != "" && ptag != "structure" {
payload := v.FieldByName(payloadName)
if payload.IsValid() {
switch payload.Interface().(type) {
case []byte:
defer r.HTTPResponse.Body.Close()
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
} else {
payload.Set(reflect.ValueOf(b))
}
case *string:
defer r.HTTPResponse.Body.Close()
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
} else {
str := string(b)
payload.Set(reflect.ValueOf(&str))
}
default:
switch payload.Type().String() {
case "io.ReadSeeker":
payload.Set(reflect.ValueOf(aws.ReadSeekCloser(r.HTTPResponse.Body)))
case "aws.ReadSeekCloser", "io.ReadCloser":
payload.Set(reflect.ValueOf(r.HTTPResponse.Body))
default:
io.Copy(ioutil.Discard, r.HTTPResponse.Body)
defer r.HTTPResponse.Body.Close()
r.Error = awserr.New("SerializationError",
"failed to decode REST response",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
}
func unmarshalLocationElements(r *request.Request, v reflect.Value) {
for i := 0; i < v.NumField(); i++ {
m, field := v.Field(i), v.Type().Field(i)
if n := field.Name; n[0:1] == strings.ToLower(n[0:1]) {
continue
}
if m.IsValid() {
name := field.Tag.Get("locationName")
if name == "" {
name = field.Name
}
switch field.Tag.Get("location") {
case "statusCode":
unmarshalStatusCode(m, r.HTTPResponse.StatusCode)
case "header":
err := unmarshalHeader(m, r.HTTPResponse.Header.Get(name))
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
break
}
case "headers":
prefix := field.Tag.Get("locationName")
err := unmarshalHeaderMap(m, r.HTTPResponse.Header, prefix)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
break
}
}
}
if r.Error != nil {
return
}
}
}
func unmarshalStatusCode(v reflect.Value, statusCode int) {
if !v.IsValid() {
return
}
switch v.Interface().(type) {
case *int64:
s := int64(statusCode)
v.Set(reflect.ValueOf(&s))
}
}
func unmarshalHeaderMap(r reflect.Value, headers http.Header, prefix string) error {
switch r.Interface().(type) {
case map[string]*string: // we only support string map value types
out := map[string]*string{}
for k, v := range headers {
k = http.CanonicalHeaderKey(k)
if strings.HasPrefix(strings.ToLower(k), strings.ToLower(prefix)) {
out[k[len(prefix):]] = &v[0]
}
}
r.Set(reflect.ValueOf(out))
}
return nil
}
func unmarshalHeader(v reflect.Value, header string) error {
if !v.IsValid() || (header == "" && v.Elem().Kind() != reflect.String) {
return nil
}
switch v.Interface().(type) {
case *string:
v.Set(reflect.ValueOf(&header))
case []byte:
b, err := base64.StdEncoding.DecodeString(header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&b))
case *bool:
b, err := strconv.ParseBool(header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&b))
case *int64:
i, err := strconv.ParseInt(header, 10, 64)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&i))
case *float64:
f, err := strconv.ParseFloat(header, 64)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&f))
case *time.Time:
t, err := time.Parse(RFC822, header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&t))
default:
err := fmt.Errorf("Unsupported value for param %v (%s)", v.Interface(), v.Type())
return err
}
return nil
}

69
vendor/github.com/aws/aws-sdk-go/private/protocol/restxml/restxml.go generated vendored Normal file
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// Package restxml provides RESTful XML serialization of AWS
// requests and responses.
package restxml
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/rest-xml.json build_test.go
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/rest-xml.json unmarshal_test.go
import (
"bytes"
"encoding/xml"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/query"
"github.com/aws/aws-sdk-go/private/protocol/rest"
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// BuildHandler is a named request handler for building restxml protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.restxml.Build", Fn: Build}
// UnmarshalHandler is a named request handler for unmarshaling restxml protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.restxml.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling restxml protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.restxml.UnmarshalMeta", Fn: UnmarshalMeta}
// UnmarshalErrorHandler is a named request handler for unmarshaling restxml protocol request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.restxml.UnmarshalError", Fn: UnmarshalError}
// Build builds a request payload for the REST XML protocol.
func Build(r *request.Request) {
rest.Build(r)
if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
var buf bytes.Buffer
err := xmlutil.BuildXML(r.Params, xml.NewEncoder(&buf))
if err != nil {
r.Error = awserr.New("SerializationError", "failed to encode rest XML request", err)
return
}
r.SetBufferBody(buf.Bytes())
}
}
// Unmarshal unmarshals a payload response for the REST XML protocol.
func Unmarshal(r *request.Request) {
if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
defer r.HTTPResponse.Body.Close()
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, "")
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST XML response", err)
return
}
} else {
rest.Unmarshal(r)
}
}
// UnmarshalMeta unmarshals response headers for the REST XML protocol.
func UnmarshalMeta(r *request.Request) {
rest.UnmarshalMeta(r)
}
// UnmarshalError unmarshals a response error for the REST XML protocol.
func UnmarshalError(r *request.Request) {
query.UnmarshalError(r)
}

21
vendor/github.com/aws/aws-sdk-go/private/protocol/unmarshal.go generated vendored Normal file
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@ -0,0 +1,21 @@
package protocol
import (
"io"
"io/ioutil"
"github.com/aws/aws-sdk-go/aws/request"
)
// UnmarshalDiscardBodyHandler is a named request handler to empty and close a response's body
var UnmarshalDiscardBodyHandler = request.NamedHandler{Name: "awssdk.shared.UnmarshalDiscardBody", Fn: UnmarshalDiscardBody}
// UnmarshalDiscardBody is a request handler to empty a response's body and closing it.
func UnmarshalDiscardBody(r *request.Request) {
if r.HTTPResponse == nil || r.HTTPResponse.Body == nil {
return
}
io.Copy(ioutil.Discard, r.HTTPResponse.Body)
r.HTTPResponse.Body.Close()
}

293
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/build.go generated vendored Normal file
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// Package xmlutil provides XML serialization of AWS requests and responses.
package xmlutil
import (
"encoding/base64"
"encoding/xml"
"fmt"
"reflect"
"sort"
"strconv"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// BuildXML will serialize params into an xml.Encoder.
// Error will be returned if the serialization of any of the params or nested values fails.
func BuildXML(params interface{}, e *xml.Encoder) error {
b := xmlBuilder{encoder: e, namespaces: map[string]string{}}
root := NewXMLElement(xml.Name{})
if err := b.buildValue(reflect.ValueOf(params), root, ""); err != nil {
return err
}
for _, c := range root.Children {
for _, v := range c {
return StructToXML(e, v, false)
}
}
return nil
}
// Returns the reflection element of a value, if it is a pointer.
func elemOf(value reflect.Value) reflect.Value {
for value.Kind() == reflect.Ptr {
value = value.Elem()
}
return value
}
// A xmlBuilder serializes values from Go code to XML
type xmlBuilder struct {
encoder *xml.Encoder
namespaces map[string]string
}
// buildValue generic XMLNode builder for any type. Will build value for their specific type
// struct, list, map, scalar.
//
// Also takes a "type" tag value to set what type a value should be converted to XMLNode as. If
// type is not provided reflect will be used to determine the value's type.
func (b *xmlBuilder) buildValue(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
value = elemOf(value)
if !value.IsValid() { // no need to handle zero values
return nil
} else if tag.Get("location") != "" { // don't handle non-body location values
return nil
}
t := tag.Get("type")
if t == "" {
switch value.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := value.Type().FieldByName("_"); ok {
tag = tag + reflect.StructTag(" ") + field.Tag
}
return b.buildStruct(value, current, tag)
case "list":
return b.buildList(value, current, tag)
case "map":
return b.buildMap(value, current, tag)
default:
return b.buildScalar(value, current, tag)
}
}
// buildStruct adds a struct and its fields to the current XMLNode. All fields any any nested
// types are converted to XMLNodes also.
func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if !value.IsValid() {
return nil
}
fieldAdded := false
// unwrap payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := value.Type().FieldByName(payload)
tag = field.Tag
value = elemOf(value.FieldByName(payload))
if !value.IsValid() {
return nil
}
}
child := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
// there is an xmlNamespace associated with this struct
if prefix, uri := tag.Get("xmlPrefix"), tag.Get("xmlURI"); uri != "" {
ns := xml.Attr{
Name: xml.Name{Local: "xmlns"},
Value: uri,
}
if prefix != "" {
b.namespaces[prefix] = uri // register the namespace
ns.Name.Local = "xmlns:" + prefix
}
child.Attr = append(child.Attr, ns)
}
t := value.Type()
for i := 0; i < value.NumField(); i++ {
member := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
mTag := field.Tag
if mTag.Get("location") != "" { // skip non-body members
continue
}
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
member = reflect.ValueOf(token)
}
memberName := mTag.Get("locationName")
if memberName == "" {
memberName = field.Name
mTag = reflect.StructTag(string(mTag) + ` locationName:"` + memberName + `"`)
}
if err := b.buildValue(member, child, mTag); err != nil {
return err
}
fieldAdded = true
}
if fieldAdded { // only append this child if we have one ore more valid members
current.AddChild(child)
}
return nil
}
// buildList adds the value's list items to the current XMLNode as children nodes. All
// nested values in the list are converted to XMLNodes also.
func (b *xmlBuilder) buildList(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if value.IsNil() { // don't build omitted lists
return nil
}
// check for unflattened list member
flattened := tag.Get("flattened") != ""
xname := xml.Name{Local: tag.Get("locationName")}
if flattened {
for i := 0; i < value.Len(); i++ {
child := NewXMLElement(xname)
current.AddChild(child)
if err := b.buildValue(value.Index(i), child, ""); err != nil {
return err
}
}
} else {
list := NewXMLElement(xname)
current.AddChild(list)
for i := 0; i < value.Len(); i++ {
iname := tag.Get("locationNameList")
if iname == "" {
iname = "member"
}
child := NewXMLElement(xml.Name{Local: iname})
list.AddChild(child)
if err := b.buildValue(value.Index(i), child, ""); err != nil {
return err
}
}
}
return nil
}
// buildMap adds the value's key/value pairs to the current XMLNode as children nodes. All
// nested values in the map are converted to XMLNodes also.
//
// Error will be returned if it is unable to build the map's values into XMLNodes
func (b *xmlBuilder) buildMap(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if value.IsNil() { // don't build omitted maps
return nil
}
maproot := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
current.AddChild(maproot)
current = maproot
kname, vname := "key", "value"
if n := tag.Get("locationNameKey"); n != "" {
kname = n
}
if n := tag.Get("locationNameValue"); n != "" {
vname = n
}
// sorting is not required for compliance, but it makes testing easier
keys := make([]string, value.Len())
for i, k := range value.MapKeys() {
keys[i] = k.String()
}
sort.Strings(keys)
for _, k := range keys {
v := value.MapIndex(reflect.ValueOf(k))
mapcur := current
if tag.Get("flattened") == "" { // add "entry" tag to non-flat maps
child := NewXMLElement(xml.Name{Local: "entry"})
mapcur.AddChild(child)
mapcur = child
}
kchild := NewXMLElement(xml.Name{Local: kname})
kchild.Text = k
vchild := NewXMLElement(xml.Name{Local: vname})
mapcur.AddChild(kchild)
mapcur.AddChild(vchild)
if err := b.buildValue(v, vchild, ""); err != nil {
return err
}
}
return nil
}
// buildScalar will convert the value into a string and append it as a attribute or child
// of the current XMLNode.
//
// The value will be added as an attribute if tag contains a "xmlAttribute" attribute value.
//
// Error will be returned if the value type is unsupported.
func (b *xmlBuilder) buildScalar(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
var str string
switch converted := value.Interface().(type) {
case string:
str = converted
case []byte:
if !value.IsNil() {
str = base64.StdEncoding.EncodeToString(converted)
}
case bool:
str = strconv.FormatBool(converted)
case int64:
str = strconv.FormatInt(converted, 10)
case int:
str = strconv.Itoa(converted)
case float64:
str = strconv.FormatFloat(converted, 'f', -1, 64)
case float32:
str = strconv.FormatFloat(float64(converted), 'f', -1, 32)
case time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
str = converted.UTC().Format(ISO8601UTC)
default:
return fmt.Errorf("unsupported value for param %s: %v (%s)",
tag.Get("locationName"), value.Interface(), value.Type().Name())
}
xname := xml.Name{Local: tag.Get("locationName")}
if tag.Get("xmlAttribute") != "" { // put into current node's attribute list
attr := xml.Attr{Name: xname, Value: str}
current.Attr = append(current.Attr, attr)
} else { // regular text node
current.AddChild(&XMLNode{Name: xname, Text: str})
}
return nil
}

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vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/unmarshal.go generated vendored Normal file
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package xmlutil
import (
"encoding/base64"
"encoding/xml"
"fmt"
"io"
"reflect"
"strconv"
"strings"
"time"
)
// UnmarshalXML deserializes an xml.Decoder into the container v. V
// needs to match the shape of the XML expected to be decoded.
// If the shape doesn't match unmarshaling will fail.
func UnmarshalXML(v interface{}, d *xml.Decoder, wrapper string) error {
n, _ := XMLToStruct(d, nil)
if n.Children != nil {
for _, root := range n.Children {
for _, c := range root {
if wrappedChild, ok := c.Children[wrapper]; ok {
c = wrappedChild[0] // pull out wrapped element
}
err := parse(reflect.ValueOf(v), c, "")
if err != nil {
if err == io.EOF {
return nil
}
return err
}
}
}
return nil
}
return nil
}
// parse deserializes any value from the XMLNode. The type tag is used to infer the type, or reflect
// will be used to determine the type from r.
func parse(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
rtype := r.Type()
if rtype.Kind() == reflect.Ptr {
rtype = rtype.Elem() // check kind of actual element type
}
t := tag.Get("type")
if t == "" {
switch rtype.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := rtype.FieldByName("_"); ok {
tag = field.Tag
}
return parseStruct(r, node, tag)
case "list":
return parseList(r, node, tag)
case "map":
return parseMap(r, node, tag)
default:
return parseScalar(r, node, tag)
}
}
// parseStruct deserializes a structure and its fields from an XMLNode. Any nested
// types in the structure will also be deserialized.
func parseStruct(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
t := r.Type()
if r.Kind() == reflect.Ptr {
if r.IsNil() { // create the structure if it's nil
s := reflect.New(r.Type().Elem())
r.Set(s)
r = s
}
r = r.Elem()
t = t.Elem()
}
// unwrap any payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := t.FieldByName(payload)
return parseStruct(r.FieldByName(payload), node, field.Tag)
}
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
if c := field.Name[0:1]; strings.ToLower(c) == c {
continue // ignore unexported fields
}
// figure out what this field is called
name := field.Name
if field.Tag.Get("flattened") != "" && field.Tag.Get("locationNameList") != "" {
name = field.Tag.Get("locationNameList")
} else if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
// try to find the field by name in elements
elems := node.Children[name]
if elems == nil { // try to find the field in attributes
for _, a := range node.Attr {
if name == a.Name.Local {
// turn this into a text node for de-serializing
elems = []*XMLNode{{Text: a.Value}}
}
}
}
member := r.FieldByName(field.Name)
for _, elem := range elems {
err := parse(member, elem, field.Tag)
if err != nil {
return err
}
}
}
return nil
}
// parseList deserializes a list of values from an XML node. Each list entry
// will also be deserialized.
func parseList(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
t := r.Type()
if tag.Get("flattened") == "" { // look at all item entries
mname := "member"
if name := tag.Get("locationNameList"); name != "" {
mname = name
}
if Children, ok := node.Children[mname]; ok {
if r.IsNil() {
r.Set(reflect.MakeSlice(t, len(Children), len(Children)))
}
for i, c := range Children {
err := parse(r.Index(i), c, "")
if err != nil {
return err
}
}
}
} else { // flattened list means this is a single element
if r.IsNil() {
r.Set(reflect.MakeSlice(t, 0, 0))
}
childR := reflect.Zero(t.Elem())
r.Set(reflect.Append(r, childR))
err := parse(r.Index(r.Len()-1), node, "")
if err != nil {
return err
}
}
return nil
}
// parseMap deserializes a map from an XMLNode. The direct children of the XMLNode
// will also be deserialized as map entries.
func parseMap(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
if r.IsNil() {
r.Set(reflect.MakeMap(r.Type()))
}
if tag.Get("flattened") == "" { // look at all child entries
for _, entry := range node.Children["entry"] {
parseMapEntry(r, entry, tag)
}
} else { // this element is itself an entry
parseMapEntry(r, node, tag)
}
return nil
}
// parseMapEntry deserializes a map entry from a XML node.
func parseMapEntry(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
kname, vname := "key", "value"
if n := tag.Get("locationNameKey"); n != "" {
kname = n
}
if n := tag.Get("locationNameValue"); n != "" {
vname = n
}
keys, ok := node.Children[kname]
values := node.Children[vname]
if ok {
for i, key := range keys {
keyR := reflect.ValueOf(key.Text)
value := values[i]
valueR := reflect.New(r.Type().Elem()).Elem()
parse(valueR, value, "")
r.SetMapIndex(keyR, valueR)
}
}
return nil
}
// parseScaller deserializes an XMLNode value into a concrete type based on the
// interface type of r.
//
// Error is returned if the deserialization fails due to invalid type conversion,
// or unsupported interface type.
func parseScalar(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
switch r.Interface().(type) {
case *string:
r.Set(reflect.ValueOf(&node.Text))
return nil
case []byte:
b, err := base64.StdEncoding.DecodeString(node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(b))
case *bool:
v, err := strconv.ParseBool(node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *int64:
v, err := strconv.ParseInt(node.Text, 10, 64)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *float64:
v, err := strconv.ParseFloat(node.Text, 64)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
t, err := time.Parse(ISO8601UTC, node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&t))
default:
return fmt.Errorf("unsupported value: %v (%s)", r.Interface(), r.Type())
}
return nil
}

105
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/xml_to_struct.go generated vendored Normal file
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package xmlutil
import (
"encoding/xml"
"io"
"sort"
)
// A XMLNode contains the values to be encoded or decoded.
type XMLNode struct {
Name xml.Name `json:",omitempty"`
Children map[string][]*XMLNode `json:",omitempty"`
Text string `json:",omitempty"`
Attr []xml.Attr `json:",omitempty"`
}
// NewXMLElement returns a pointer to a new XMLNode initialized to default values.
func NewXMLElement(name xml.Name) *XMLNode {
return &XMLNode{
Name: name,
Children: map[string][]*XMLNode{},
Attr: []xml.Attr{},
}
}
// AddChild adds child to the XMLNode.
func (n *XMLNode) AddChild(child *XMLNode) {
if _, ok := n.Children[child.Name.Local]; !ok {
n.Children[child.Name.Local] = []*XMLNode{}
}
n.Children[child.Name.Local] = append(n.Children[child.Name.Local], child)
}
// XMLToStruct converts a xml.Decoder stream to XMLNode with nested values.
func XMLToStruct(d *xml.Decoder, s *xml.StartElement) (*XMLNode, error) {
out := &XMLNode{}
for {
tok, err := d.Token()
if tok == nil || err == io.EOF {
break
}
if err != nil {
return out, err
}
switch typed := tok.(type) {
case xml.CharData:
out.Text = string(typed.Copy())
case xml.StartElement:
el := typed.Copy()
out.Attr = el.Attr
if out.Children == nil {
out.Children = map[string][]*XMLNode{}
}
name := typed.Name.Local
slice := out.Children[name]
if slice == nil {
slice = []*XMLNode{}
}
node, e := XMLToStruct(d, &el)
if e != nil {
return out, e
}
node.Name = typed.Name
slice = append(slice, node)
out.Children[name] = slice
case xml.EndElement:
if s != nil && s.Name.Local == typed.Name.Local { // matching end token
return out, nil
}
}
}
return out, nil
}
// StructToXML writes an XMLNode to a xml.Encoder as tokens.
func StructToXML(e *xml.Encoder, node *XMLNode, sorted bool) error {
e.EncodeToken(xml.StartElement{Name: node.Name, Attr: node.Attr})
if node.Text != "" {
e.EncodeToken(xml.CharData([]byte(node.Text)))
} else if sorted {
sortedNames := []string{}
for k := range node.Children {
sortedNames = append(sortedNames, k)
}
sort.Strings(sortedNames)
for _, k := range sortedNames {
for _, v := range node.Children[k] {
StructToXML(e, v, sorted)
}
}
} else {
for _, c := range node.Children {
for _, v := range c {
StructToXML(e, v, sorted)
}
}
}
e.EncodeToken(xml.EndElement{Name: node.Name})
return e.Flush()
}

134
vendor/github.com/aws/aws-sdk-go/private/waiter/waiter.go generated vendored Normal file
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package waiter
import (
"fmt"
"reflect"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/request"
)
// A Config provides a collection of configuration values to setup a generated
// waiter code with.
type Config struct {
Name string
Delay int
MaxAttempts int
Operation string
Acceptors []WaitAcceptor
}
// A WaitAcceptor provides the information needed to wait for an API operation
// to complete.
type WaitAcceptor struct {
Expected interface{}
Matcher string
State string
Argument string
}
// A Waiter provides waiting for an operation to complete.
type Waiter struct {
Config
Client interface{}
Input interface{}
}
// Wait waits for an operation to complete, expire max attempts, or fail. Error
// is returned if the operation fails.
func (w *Waiter) Wait() error {
client := reflect.ValueOf(w.Client)
in := reflect.ValueOf(w.Input)
method := client.MethodByName(w.Config.Operation + "Request")
for i := 0; i < w.MaxAttempts; i++ {
res := method.Call([]reflect.Value{in})
req := res[0].Interface().(*request.Request)
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("Waiter"))
err := req.Send()
for _, a := range w.Acceptors {
result := false
var vals []interface{}
switch a.Matcher {
case "pathAll", "path":
// Require all matches to be equal for result to match
vals, _ = awsutil.ValuesAtPath(req.Data, a.Argument)
if len(vals) == 0 {
break
}
result = true
for _, val := range vals {
if !awsutil.DeepEqual(val, a.Expected) {
result = false
break
}
}
case "pathAny":
// Only a single match needs to equal for the result to match
vals, _ = awsutil.ValuesAtPath(req.Data, a.Argument)
for _, val := range vals {
if awsutil.DeepEqual(val, a.Expected) {
result = true
break
}
}
case "status":
s := a.Expected.(int)
result = s == req.HTTPResponse.StatusCode
case "error":
if aerr, ok := err.(awserr.Error); ok {
result = aerr.Code() == a.Expected.(string)
}
case "pathList":
// ignored matcher
default:
logf(client, "WARNING: Waiter for %s encountered unexpected matcher: %s",
w.Config.Operation, a.Matcher)
}
if !result {
// If there was no matching result found there is nothing more to do
// for this response, retry the request.
continue
}
switch a.State {
case "success":
// waiter completed
return nil
case "failure":
// Waiter failure state triggered
return awserr.New("ResourceNotReady",
fmt.Sprintf("failed waiting for successful resource state"), err)
case "retry":
// clear the error and retry the operation
err = nil
default:
logf(client, "WARNING: Waiter for %s encountered unexpected state: %s",
w.Config.Operation, a.State)
}
}
if err != nil {
return err
}
time.Sleep(time.Second * time.Duration(w.Delay))
}
return awserr.New("ResourceNotReady",
fmt.Sprintf("exceeded %d wait attempts", w.MaxAttempts), nil)
}
func logf(client reflect.Value, msg string, args ...interface{}) {
cfgVal := client.FieldByName("Config")
if !cfgVal.IsValid() {
return
}
if cfg, ok := cfgVal.Interface().(*aws.Config); ok && cfg.Logger != nil {
cfg.Logger.Log(fmt.Sprintf(msg, args...))
}
}

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vendor/github.com/aws/aws-sdk-go/service/s3/api.go generated vendored Normal file
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43
vendor/github.com/aws/aws-sdk-go/service/s3/bucket_location.go generated vendored Normal file
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package s3
import (
"io/ioutil"
"regexp"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/request"
)
var reBucketLocation = regexp.MustCompile(`>([^<>]+)<\/Location`)
func buildGetBucketLocation(r *request.Request) {
if r.DataFilled() {
out := r.Data.(*GetBucketLocationOutput)
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed reading response body", err)
return
}
match := reBucketLocation.FindSubmatch(b)
if len(match) > 1 {
loc := string(match[1])
out.LocationConstraint = &loc
}
}
}
func populateLocationConstraint(r *request.Request) {
if r.ParamsFilled() && aws.StringValue(r.Config.Region) != "us-east-1" {
in := r.Params.(*CreateBucketInput)
if in.CreateBucketConfiguration == nil {
r.Params = awsutil.CopyOf(r.Params)
in = r.Params.(*CreateBucketInput)
in.CreateBucketConfiguration = &CreateBucketConfiguration{
LocationConstraint: r.Config.Region,
}
}
}
}

36
vendor/github.com/aws/aws-sdk-go/service/s3/content_md5.go generated vendored Normal file
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package s3
import (
"crypto/md5"
"encoding/base64"
"io"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// contentMD5 computes and sets the HTTP Content-MD5 header for requests that
// require it.
func contentMD5(r *request.Request) {
h := md5.New()
// hash the body. seek back to the first position after reading to reset
// the body for transmission. copy errors may be assumed to be from the
// body.
_, err := io.Copy(h, r.Body)
if err != nil {
r.Error = awserr.New("ContentMD5", "failed to read body", err)
return
}
_, err = r.Body.Seek(0, 0)
if err != nil {
r.Error = awserr.New("ContentMD5", "failed to seek body", err)
return
}
// encode the md5 checksum in base64 and set the request header.
sum := h.Sum(nil)
sum64 := make([]byte, base64.StdEncoding.EncodedLen(len(sum)))
base64.StdEncoding.Encode(sum64, sum)
r.HTTPRequest.Header.Set("Content-MD5", string(sum64))
}

46
vendor/github.com/aws/aws-sdk-go/service/s3/customizations.go generated vendored Normal file
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package s3
import (
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/request"
)
func init() {
initClient = defaultInitClientFn
initRequest = defaultInitRequestFn
}
func defaultInitClientFn(c *client.Client) {
// Support building custom endpoints based on config
c.Handlers.Build.PushFront(updateEndpointForS3Config)
// Require SSL when using SSE keys
c.Handlers.Validate.PushBack(validateSSERequiresSSL)
c.Handlers.Build.PushBack(computeSSEKeys)
// S3 uses custom error unmarshaling logic
c.Handlers.UnmarshalError.Clear()
c.Handlers.UnmarshalError.PushBack(unmarshalError)
}
func defaultInitRequestFn(r *request.Request) {
// Add reuest handlers for specific platforms.
// e.g. 100-continue support for PUT requests using Go 1.6
platformRequestHandlers(r)
switch r.Operation.Name {
case opPutBucketCors, opPutBucketLifecycle, opPutBucketPolicy,
opPutBucketTagging, opDeleteObjects, opPutBucketLifecycleConfiguration,
opPutBucketReplication:
// These S3 operations require Content-MD5 to be set
r.Handlers.Build.PushBack(contentMD5)
case opGetBucketLocation:
// GetBucketLocation has custom parsing logic
r.Handlers.Unmarshal.PushFront(buildGetBucketLocation)
case opCreateBucket:
// Auto-populate LocationConstraint with current region
r.Handlers.Validate.PushFront(populateLocationConstraint)
case opCopyObject, opUploadPartCopy, opCompleteMultipartUpload:
r.Handlers.Unmarshal.PushFront(copyMultipartStatusOKUnmarhsalError)
}
}

173
vendor/github.com/aws/aws-sdk-go/service/s3/host_style_bucket.go generated vendored Normal file
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package s3
import (
"fmt"
"net/url"
"regexp"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/request"
)
// an operationBlacklist is a list of operation names that should a
// request handler should not be executed with.
type operationBlacklist []string
// Continue will return true of the Request's operation name is not
// in the blacklist. False otherwise.
func (b operationBlacklist) Continue(r *request.Request) bool {
for i := 0; i < len(b); i++ {
if b[i] == r.Operation.Name {
return false
}
}
return true
}
var accelerateOpBlacklist = operationBlacklist{
opListBuckets, opCreateBucket, opDeleteBucket,
}
// Request handler to automatically add the bucket name to the endpoint domain
// if possible. This style of bucket is valid for all bucket names which are
// DNS compatible and do not contain "."
func updateEndpointForS3Config(r *request.Request) {
forceHostStyle := aws.BoolValue(r.Config.S3ForcePathStyle)
accelerate := aws.BoolValue(r.Config.S3UseAccelerate)
useDualStack := aws.BoolValue(r.Config.UseDualStack)
if useDualStack && accelerate {
r.Error = awserr.New("InvalidParameterException",
fmt.Sprintf("configuration aws.Config.UseDualStack is not compatible with aws.Config.Accelerate"),
nil)
return
}
if accelerate && accelerateOpBlacklist.Continue(r) {
if forceHostStyle {
if r.Config.Logger != nil {
r.Config.Logger.Log("ERROR: aws.Config.S3UseAccelerate is not compatible with aws.Config.S3ForcePathStyle, ignoring S3ForcePathStyle.")
}
}
updateEndpointForAccelerate(r)
} else if !forceHostStyle && r.Operation.Name != opGetBucketLocation {
updateEndpointForHostStyle(r)
}
}
func updateEndpointForHostStyle(r *request.Request) {
bucket, ok := bucketNameFromReqParams(r.Params)
if !ok {
// Ignore operation requests if the bucketname was not provided
// if this is an input validation error the validation handler
// will report it.
return
}
if !hostCompatibleBucketName(r.HTTPRequest.URL, bucket) {
// bucket name must be valid to put into the host
return
}
moveBucketToHost(r.HTTPRequest.URL, bucket)
}
func updateEndpointForAccelerate(r *request.Request) {
bucket, ok := bucketNameFromReqParams(r.Params)
if !ok {
// Ignore operation requests if the bucketname was not provided
// if this is an input validation error the validation handler
// will report it.
return
}
if !hostCompatibleBucketName(r.HTTPRequest.URL, bucket) {
r.Error = awserr.New("InvalidParameterException",
fmt.Sprintf("bucket name %s is not compatibile with S3 Accelerate", bucket),
nil)
return
}
// Change endpoint from s3(-[a-z0-1-])?.amazonaws.com to s3-accelerate.amazonaws.com
r.HTTPRequest.URL.Host = replaceHostRegion(r.HTTPRequest.URL.Host, "accelerate")
moveBucketToHost(r.HTTPRequest.URL, bucket)
}
// Attempts to retrieve the bucket name from the request input parameters.
// If no bucket is found, or the field is empty "", false will be returned.
func bucketNameFromReqParams(params interface{}) (string, bool) {
b, _ := awsutil.ValuesAtPath(params, "Bucket")
if len(b) == 0 {
return "", false
}
if bucket, ok := b[0].(*string); ok {
if bucketStr := aws.StringValue(bucket); bucketStr != "" {
return bucketStr, true
}
}
return "", false
}
// hostCompatibleBucketName returns true if the request should
// put the bucket in the host. This is false if S3ForcePathStyle is
// explicitly set or if the bucket is not DNS compatible.
func hostCompatibleBucketName(u *url.URL, bucket string) bool {
// Bucket might be DNS compatible but dots in the hostname will fail
// certificate validation, so do not use host-style.
if u.Scheme == "https" && strings.Contains(bucket, ".") {
return false
}
// if the bucket is DNS compatible
return dnsCompatibleBucketName(bucket)
}
var reDomain = regexp.MustCompile(`^[a-z0-9][a-z0-9\.\-]{1,61}[a-z0-9]$`)
var reIPAddress = regexp.MustCompile(`^(\d+\.){3}\d+$`)
// dnsCompatibleBucketName returns true if the bucket name is DNS compatible.
// Buckets created outside of the classic region MUST be DNS compatible.
func dnsCompatibleBucketName(bucket string) bool {
return reDomain.MatchString(bucket) &&
!reIPAddress.MatchString(bucket) &&
!strings.Contains(bucket, "..")
}
// moveBucketToHost moves the bucket name from the URI path to URL host.
func moveBucketToHost(u *url.URL, bucket string) {
u.Host = bucket + "." + u.Host
u.Path = strings.Replace(u.Path, "/{Bucket}", "", -1)
if u.Path == "" {
u.Path = "/"
}
}
const s3HostPrefix = "s3"
// replaceHostRegion replaces the S3 region string in the host with the
// value provided. If v is empty the host prefix returned will be s3.
func replaceHostRegion(host, v string) string {
if !strings.HasPrefix(host, s3HostPrefix) {
return host
}
suffix := host[len(s3HostPrefix):]
for i := len(s3HostPrefix); i < len(host); i++ {
if host[i] == '.' {
// Trim until '.' leave the it in place.
suffix = host[i:]
break
}
}
if len(v) == 0 {
return fmt.Sprintf("s3%s", suffix)
}
return fmt.Sprintf("s3-%s%s", v, suffix)
}

8
vendor/github.com/aws/aws-sdk-go/service/s3/platform_handlers.go generated vendored Normal file
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@ -0,0 +1,8 @@
// +build !go1.6
package s3
import "github.com/aws/aws-sdk-go/aws/request"
func platformRequestHandlers(r *request.Request) {
}

28
vendor/github.com/aws/aws-sdk-go/service/s3/platform_handlers_go1.6.go generated vendored Normal file
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// +build go1.6
package s3
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/request"
)
func platformRequestHandlers(r *request.Request) {
if r.Operation.HTTPMethod == "PUT" {
// 100-Continue should only be used on put requests.
r.Handlers.Sign.PushBack(add100Continue)
}
}
func add100Continue(r *request.Request) {
if aws.BoolValue(r.Config.S3Disable100Continue) {
return
}
if r.HTTPRequest.ContentLength < 1024*1024*2 {
// Ignore requests smaller than 2MB. This helps prevent delaying
// requests unnecessarily.
return
}
r.HTTPRequest.Header.Set("Expect", "100-Continue")
}

317
vendor/github.com/aws/aws-sdk-go/service/s3/s3iface/interface.go generated vendored Normal file
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// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
// Package s3iface provides an interface to enable mocking the Amazon Simple Storage Service service client
// for testing your code.
//
// It is important to note that this interface will have breaking changes
// when the service model is updated and adds new API operations, paginators,
// and waiters.
package s3iface
import (
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/service/s3"
)
// S3API provides an interface to enable mocking the
// s3.S3 service client's API operation,
// paginators, and waiters. This make unit testing your code that calls out
// to the SDK's service client's calls easier.
//
// The best way to use this interface is so the SDK's service client's calls
// can be stubbed out for unit testing your code with the SDK without needing
// to inject custom request handlers into the the SDK's request pipeline.
//
// // myFunc uses an SDK service client to make a request to
// // Amazon Simple Storage Service.
// func myFunc(svc s3iface.S3API) bool {
// // Make svc.AbortMultipartUpload request
// }
//
// func main() {
// sess := session.New()
// svc := s3.New(sess)
//
// myFunc(svc)
// }
//
// In your _test.go file:
//
// // Define a mock struct to be used in your unit tests of myFunc.
// type mockS3Client struct {
// s3iface.S3API
// }
// func (m *mockS3Client) AbortMultipartUpload(input *s3.AbortMultipartUploadInput) (*s3.AbortMultipartUploadOutput, error) {
// // mock response/functionality
// }
//
// TestMyFunc(t *testing.T) {
// // Setup Test
// mockSvc := &mockS3Client{}
//
// myfunc(mockSvc)
//
// // Verify myFunc's functionality
// }
//
// It is important to note that this interface will have breaking changes
// when the service model is updated and adds new API operations, paginators,
// and waiters. Its suggested to use the pattern above for testing, or using
// tooling to generate mocks to satisfy the interfaces.
type S3API interface {
AbortMultipartUploadRequest(*s3.AbortMultipartUploadInput) (*request.Request, *s3.AbortMultipartUploadOutput)
AbortMultipartUpload(*s3.AbortMultipartUploadInput) (*s3.AbortMultipartUploadOutput, error)
CompleteMultipartUploadRequest(*s3.CompleteMultipartUploadInput) (*request.Request, *s3.CompleteMultipartUploadOutput)
CompleteMultipartUpload(*s3.CompleteMultipartUploadInput) (*s3.CompleteMultipartUploadOutput, error)
CopyObjectRequest(*s3.CopyObjectInput) (*request.Request, *s3.CopyObjectOutput)
CopyObject(*s3.CopyObjectInput) (*s3.CopyObjectOutput, error)
CreateBucketRequest(*s3.CreateBucketInput) (*request.Request, *s3.CreateBucketOutput)
CreateBucket(*s3.CreateBucketInput) (*s3.CreateBucketOutput, error)
CreateMultipartUploadRequest(*s3.CreateMultipartUploadInput) (*request.Request, *s3.CreateMultipartUploadOutput)
CreateMultipartUpload(*s3.CreateMultipartUploadInput) (*s3.CreateMultipartUploadOutput, error)
DeleteBucketRequest(*s3.DeleteBucketInput) (*request.Request, *s3.DeleteBucketOutput)
DeleteBucket(*s3.DeleteBucketInput) (*s3.DeleteBucketOutput, error)
DeleteBucketCorsRequest(*s3.DeleteBucketCorsInput) (*request.Request, *s3.DeleteBucketCorsOutput)
DeleteBucketCors(*s3.DeleteBucketCorsInput) (*s3.DeleteBucketCorsOutput, error)
DeleteBucketLifecycleRequest(*s3.DeleteBucketLifecycleInput) (*request.Request, *s3.DeleteBucketLifecycleOutput)
DeleteBucketLifecycle(*s3.DeleteBucketLifecycleInput) (*s3.DeleteBucketLifecycleOutput, error)
DeleteBucketPolicyRequest(*s3.DeleteBucketPolicyInput) (*request.Request, *s3.DeleteBucketPolicyOutput)
DeleteBucketPolicy(*s3.DeleteBucketPolicyInput) (*s3.DeleteBucketPolicyOutput, error)
DeleteBucketReplicationRequest(*s3.DeleteBucketReplicationInput) (*request.Request, *s3.DeleteBucketReplicationOutput)
DeleteBucketReplication(*s3.DeleteBucketReplicationInput) (*s3.DeleteBucketReplicationOutput, error)
DeleteBucketTaggingRequest(*s3.DeleteBucketTaggingInput) (*request.Request, *s3.DeleteBucketTaggingOutput)
DeleteBucketTagging(*s3.DeleteBucketTaggingInput) (*s3.DeleteBucketTaggingOutput, error)
DeleteBucketWebsiteRequest(*s3.DeleteBucketWebsiteInput) (*request.Request, *s3.DeleteBucketWebsiteOutput)
DeleteBucketWebsite(*s3.DeleteBucketWebsiteInput) (*s3.DeleteBucketWebsiteOutput, error)
DeleteObjectRequest(*s3.DeleteObjectInput) (*request.Request, *s3.DeleteObjectOutput)
DeleteObject(*s3.DeleteObjectInput) (*s3.DeleteObjectOutput, error)
DeleteObjectsRequest(*s3.DeleteObjectsInput) (*request.Request, *s3.DeleteObjectsOutput)
DeleteObjects(*s3.DeleteObjectsInput) (*s3.DeleteObjectsOutput, error)
GetBucketAccelerateConfigurationRequest(*s3.GetBucketAccelerateConfigurationInput) (*request.Request, *s3.GetBucketAccelerateConfigurationOutput)
GetBucketAccelerateConfiguration(*s3.GetBucketAccelerateConfigurationInput) (*s3.GetBucketAccelerateConfigurationOutput, error)
GetBucketAclRequest(*s3.GetBucketAclInput) (*request.Request, *s3.GetBucketAclOutput)
GetBucketAcl(*s3.GetBucketAclInput) (*s3.GetBucketAclOutput, error)
GetBucketCorsRequest(*s3.GetBucketCorsInput) (*request.Request, *s3.GetBucketCorsOutput)
GetBucketCors(*s3.GetBucketCorsInput) (*s3.GetBucketCorsOutput, error)
GetBucketLifecycleRequest(*s3.GetBucketLifecycleInput) (*request.Request, *s3.GetBucketLifecycleOutput)
GetBucketLifecycle(*s3.GetBucketLifecycleInput) (*s3.GetBucketLifecycleOutput, error)
GetBucketLifecycleConfigurationRequest(*s3.GetBucketLifecycleConfigurationInput) (*request.Request, *s3.GetBucketLifecycleConfigurationOutput)
GetBucketLifecycleConfiguration(*s3.GetBucketLifecycleConfigurationInput) (*s3.GetBucketLifecycleConfigurationOutput, error)
GetBucketLocationRequest(*s3.GetBucketLocationInput) (*request.Request, *s3.GetBucketLocationOutput)
GetBucketLocation(*s3.GetBucketLocationInput) (*s3.GetBucketLocationOutput, error)
GetBucketLoggingRequest(*s3.GetBucketLoggingInput) (*request.Request, *s3.GetBucketLoggingOutput)
GetBucketLogging(*s3.GetBucketLoggingInput) (*s3.GetBucketLoggingOutput, error)
GetBucketNotificationRequest(*s3.GetBucketNotificationConfigurationRequest) (*request.Request, *s3.NotificationConfigurationDeprecated)
GetBucketNotification(*s3.GetBucketNotificationConfigurationRequest) (*s3.NotificationConfigurationDeprecated, error)
GetBucketNotificationConfigurationRequest(*s3.GetBucketNotificationConfigurationRequest) (*request.Request, *s3.NotificationConfiguration)
GetBucketNotificationConfiguration(*s3.GetBucketNotificationConfigurationRequest) (*s3.NotificationConfiguration, error)
GetBucketPolicyRequest(*s3.GetBucketPolicyInput) (*request.Request, *s3.GetBucketPolicyOutput)
GetBucketPolicy(*s3.GetBucketPolicyInput) (*s3.GetBucketPolicyOutput, error)
GetBucketReplicationRequest(*s3.GetBucketReplicationInput) (*request.Request, *s3.GetBucketReplicationOutput)
GetBucketReplication(*s3.GetBucketReplicationInput) (*s3.GetBucketReplicationOutput, error)
GetBucketRequestPaymentRequest(*s3.GetBucketRequestPaymentInput) (*request.Request, *s3.GetBucketRequestPaymentOutput)
GetBucketRequestPayment(*s3.GetBucketRequestPaymentInput) (*s3.GetBucketRequestPaymentOutput, error)
GetBucketTaggingRequest(*s3.GetBucketTaggingInput) (*request.Request, *s3.GetBucketTaggingOutput)
GetBucketTagging(*s3.GetBucketTaggingInput) (*s3.GetBucketTaggingOutput, error)
GetBucketVersioningRequest(*s3.GetBucketVersioningInput) (*request.Request, *s3.GetBucketVersioningOutput)
GetBucketVersioning(*s3.GetBucketVersioningInput) (*s3.GetBucketVersioningOutput, error)
GetBucketWebsiteRequest(*s3.GetBucketWebsiteInput) (*request.Request, *s3.GetBucketWebsiteOutput)
GetBucketWebsite(*s3.GetBucketWebsiteInput) (*s3.GetBucketWebsiteOutput, error)
GetObjectRequest(*s3.GetObjectInput) (*request.Request, *s3.GetObjectOutput)
GetObject(*s3.GetObjectInput) (*s3.GetObjectOutput, error)
GetObjectAclRequest(*s3.GetObjectAclInput) (*request.Request, *s3.GetObjectAclOutput)
GetObjectAcl(*s3.GetObjectAclInput) (*s3.GetObjectAclOutput, error)
GetObjectTorrentRequest(*s3.GetObjectTorrentInput) (*request.Request, *s3.GetObjectTorrentOutput)
GetObjectTorrent(*s3.GetObjectTorrentInput) (*s3.GetObjectTorrentOutput, error)
HeadBucketRequest(*s3.HeadBucketInput) (*request.Request, *s3.HeadBucketOutput)
HeadBucket(*s3.HeadBucketInput) (*s3.HeadBucketOutput, error)
HeadObjectRequest(*s3.HeadObjectInput) (*request.Request, *s3.HeadObjectOutput)
HeadObject(*s3.HeadObjectInput) (*s3.HeadObjectOutput, error)
ListBucketsRequest(*s3.ListBucketsInput) (*request.Request, *s3.ListBucketsOutput)
ListBuckets(*s3.ListBucketsInput) (*s3.ListBucketsOutput, error)
ListMultipartUploadsRequest(*s3.ListMultipartUploadsInput) (*request.Request, *s3.ListMultipartUploadsOutput)
ListMultipartUploads(*s3.ListMultipartUploadsInput) (*s3.ListMultipartUploadsOutput, error)
ListMultipartUploadsPages(*s3.ListMultipartUploadsInput, func(*s3.ListMultipartUploadsOutput, bool) bool) error
ListObjectVersionsRequest(*s3.ListObjectVersionsInput) (*request.Request, *s3.ListObjectVersionsOutput)
ListObjectVersions(*s3.ListObjectVersionsInput) (*s3.ListObjectVersionsOutput, error)
ListObjectVersionsPages(*s3.ListObjectVersionsInput, func(*s3.ListObjectVersionsOutput, bool) bool) error
ListObjectsRequest(*s3.ListObjectsInput) (*request.Request, *s3.ListObjectsOutput)
ListObjects(*s3.ListObjectsInput) (*s3.ListObjectsOutput, error)
ListObjectsPages(*s3.ListObjectsInput, func(*s3.ListObjectsOutput, bool) bool) error
ListObjectsV2Request(*s3.ListObjectsV2Input) (*request.Request, *s3.ListObjectsV2Output)
ListObjectsV2(*s3.ListObjectsV2Input) (*s3.ListObjectsV2Output, error)
ListObjectsV2Pages(*s3.ListObjectsV2Input, func(*s3.ListObjectsV2Output, bool) bool) error
ListPartsRequest(*s3.ListPartsInput) (*request.Request, *s3.ListPartsOutput)
ListParts(*s3.ListPartsInput) (*s3.ListPartsOutput, error)
ListPartsPages(*s3.ListPartsInput, func(*s3.ListPartsOutput, bool) bool) error
PutBucketAccelerateConfigurationRequest(*s3.PutBucketAccelerateConfigurationInput) (*request.Request, *s3.PutBucketAccelerateConfigurationOutput)
PutBucketAccelerateConfiguration(*s3.PutBucketAccelerateConfigurationInput) (*s3.PutBucketAccelerateConfigurationOutput, error)
PutBucketAclRequest(*s3.PutBucketAclInput) (*request.Request, *s3.PutBucketAclOutput)
PutBucketAcl(*s3.PutBucketAclInput) (*s3.PutBucketAclOutput, error)
PutBucketCorsRequest(*s3.PutBucketCorsInput) (*request.Request, *s3.PutBucketCorsOutput)
PutBucketCors(*s3.PutBucketCorsInput) (*s3.PutBucketCorsOutput, error)
PutBucketLifecycleRequest(*s3.PutBucketLifecycleInput) (*request.Request, *s3.PutBucketLifecycleOutput)
PutBucketLifecycle(*s3.PutBucketLifecycleInput) (*s3.PutBucketLifecycleOutput, error)
PutBucketLifecycleConfigurationRequest(*s3.PutBucketLifecycleConfigurationInput) (*request.Request, *s3.PutBucketLifecycleConfigurationOutput)
PutBucketLifecycleConfiguration(*s3.PutBucketLifecycleConfigurationInput) (*s3.PutBucketLifecycleConfigurationOutput, error)
PutBucketLoggingRequest(*s3.PutBucketLoggingInput) (*request.Request, *s3.PutBucketLoggingOutput)
PutBucketLogging(*s3.PutBucketLoggingInput) (*s3.PutBucketLoggingOutput, error)
PutBucketNotificationRequest(*s3.PutBucketNotificationInput) (*request.Request, *s3.PutBucketNotificationOutput)
PutBucketNotification(*s3.PutBucketNotificationInput) (*s3.PutBucketNotificationOutput, error)
PutBucketNotificationConfigurationRequest(*s3.PutBucketNotificationConfigurationInput) (*request.Request, *s3.PutBucketNotificationConfigurationOutput)
PutBucketNotificationConfiguration(*s3.PutBucketNotificationConfigurationInput) (*s3.PutBucketNotificationConfigurationOutput, error)
PutBucketPolicyRequest(*s3.PutBucketPolicyInput) (*request.Request, *s3.PutBucketPolicyOutput)
PutBucketPolicy(*s3.PutBucketPolicyInput) (*s3.PutBucketPolicyOutput, error)
PutBucketReplicationRequest(*s3.PutBucketReplicationInput) (*request.Request, *s3.PutBucketReplicationOutput)
PutBucketReplication(*s3.PutBucketReplicationInput) (*s3.PutBucketReplicationOutput, error)
PutBucketRequestPaymentRequest(*s3.PutBucketRequestPaymentInput) (*request.Request, *s3.PutBucketRequestPaymentOutput)
PutBucketRequestPayment(*s3.PutBucketRequestPaymentInput) (*s3.PutBucketRequestPaymentOutput, error)
PutBucketTaggingRequest(*s3.PutBucketTaggingInput) (*request.Request, *s3.PutBucketTaggingOutput)
PutBucketTagging(*s3.PutBucketTaggingInput) (*s3.PutBucketTaggingOutput, error)
PutBucketVersioningRequest(*s3.PutBucketVersioningInput) (*request.Request, *s3.PutBucketVersioningOutput)
PutBucketVersioning(*s3.PutBucketVersioningInput) (*s3.PutBucketVersioningOutput, error)
PutBucketWebsiteRequest(*s3.PutBucketWebsiteInput) (*request.Request, *s3.PutBucketWebsiteOutput)
PutBucketWebsite(*s3.PutBucketWebsiteInput) (*s3.PutBucketWebsiteOutput, error)
PutObjectRequest(*s3.PutObjectInput) (*request.Request, *s3.PutObjectOutput)
PutObject(*s3.PutObjectInput) (*s3.PutObjectOutput, error)
PutObjectAclRequest(*s3.PutObjectAclInput) (*request.Request, *s3.PutObjectAclOutput)
PutObjectAcl(*s3.PutObjectAclInput) (*s3.PutObjectAclOutput, error)
RestoreObjectRequest(*s3.RestoreObjectInput) (*request.Request, *s3.RestoreObjectOutput)
RestoreObject(*s3.RestoreObjectInput) (*s3.RestoreObjectOutput, error)
UploadPartRequest(*s3.UploadPartInput) (*request.Request, *s3.UploadPartOutput)
UploadPart(*s3.UploadPartInput) (*s3.UploadPartOutput, error)
UploadPartCopyRequest(*s3.UploadPartCopyInput) (*request.Request, *s3.UploadPartCopyOutput)
UploadPartCopy(*s3.UploadPartCopyInput) (*s3.UploadPartCopyOutput, error)
WaitUntilBucketExists(*s3.HeadBucketInput) error
WaitUntilBucketNotExists(*s3.HeadBucketInput) error
WaitUntilObjectExists(*s3.HeadObjectInput) error
WaitUntilObjectNotExists(*s3.HeadObjectInput) error
}
var _ S3API = (*s3.S3)(nil)

3
vendor/github.com/aws/aws-sdk-go/service/s3/s3manager/doc.go generated vendored Normal file
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// Package s3manager provides utilities to upload and download objects from
// S3 concurrently. Helpful for when working with large objects.
package s3manager

395
vendor/github.com/aws/aws-sdk-go/service/s3/s3manager/download.go generated vendored Normal file
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@ -0,0 +1,395 @@
package s3manager
import (
"fmt"
"io"
"net/http"
"strconv"
"strings"
"sync"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3iface"
)
// DefaultDownloadPartSize is the default range of bytes to get at a time when
// using Download().
const DefaultDownloadPartSize = 1024 * 1024 * 5
// DefaultDownloadConcurrency is the default number of goroutines to spin up
// when using Download().
const DefaultDownloadConcurrency = 5
// The Downloader structure that calls Download(). It is safe to call Download()
// on this structure for multiple objects and across concurrent goroutines.
// Mutating the Downloader's properties is not safe to be done concurrently.
type Downloader struct {
// The buffer size (in bytes) to use when buffering data into chunks and
// sending them as parts to S3. The minimum allowed part size is 5MB, and
// if this value is set to zero, the DefaultPartSize value will be used.
PartSize int64
// The number of goroutines to spin up in parallel when sending parts.
// If this is set to zero, the DefaultDownloadConcurrency value will be used.
Concurrency int
// An S3 client to use when performing downloads.
S3 s3iface.S3API
}
// NewDownloader creates a new Downloader instance to downloads objects from
// S3 in concurrent chunks. Pass in additional functional options to customize
// the downloader behavior. Requires a client.ConfigProvider in order to create
// a S3 service client. The session.Session satisfies the client.ConfigProvider
// interface.
//
// Example:
// // The session the S3 Downloader will use
// sess, err := session.NewSession()
//
// // Create a downloader with the session and default options
// downloader := s3manager.NewDownloader(sess)
//
// // Create a downloader with the session and custom options
// downloader := s3manager.NewDownloader(sess, func(d *s3manager.Downloader) {
// d.PartSize = 64 * 1024 * 1024 // 64MB per part
// })
func NewDownloader(c client.ConfigProvider, options ...func(*Downloader)) *Downloader {
d := &Downloader{
S3: s3.New(c),
PartSize: DefaultDownloadPartSize,
Concurrency: DefaultDownloadConcurrency,
}
for _, option := range options {
option(d)
}
return d
}
// NewDownloaderWithClient creates a new Downloader instance to downloads
// objects from S3 in concurrent chunks. Pass in additional functional
// options to customize the downloader behavior. Requires a S3 service client
// to make S3 API calls.
//
// Example:
// // The session the S3 Downloader will use
// sess, err := session.NewSession()
//
// // The S3 client the S3 Downloader will use
// s3Svc := s3.new(sess)
//
// // Create a downloader with the s3 client and default options
// downloader := s3manager.NewDownloaderWithClient(s3Svc)
//
// // Create a downloader with the s3 client and custom options
// downloader := s3manager.NewDownloaderWithClient(s3Svc, func(d *s3manager.Downloader) {
// d.PartSize = 64 * 1024 * 1024 // 64MB per part
// })
func NewDownloaderWithClient(svc s3iface.S3API, options ...func(*Downloader)) *Downloader {
d := &Downloader{
S3: svc,
PartSize: DefaultDownloadPartSize,
Concurrency: DefaultDownloadConcurrency,
}
for _, option := range options {
option(d)
}
return d
}
type maxRetrier interface {
MaxRetries() int
}
// Download downloads an object in S3 and writes the payload into w using
// concurrent GET requests.
//
// Additional functional options can be provided to configure the individual
// download. These options are copies of the Downloader instance Download is called from.
// Modifying the options will not impact the original Downloader instance.
//
// It is safe to call this method concurrently across goroutines.
//
// The w io.WriterAt can be satisfied by an os.File to do multipart concurrent
// downloads, or in memory []byte wrapper using aws.WriteAtBuffer.
func (d Downloader) Download(w io.WriterAt, input *s3.GetObjectInput, options ...func(*Downloader)) (n int64, err error) {
impl := downloader{w: w, in: input, ctx: d}
for _, option := range options {
option(&impl.ctx)
}
if s, ok := d.S3.(maxRetrier); ok {
impl.partBodyMaxRetries = s.MaxRetries()
}
impl.totalBytes = -1
if impl.ctx.Concurrency == 0 {
impl.ctx.Concurrency = DefaultDownloadConcurrency
}
if impl.ctx.PartSize == 0 {
impl.ctx.PartSize = DefaultDownloadPartSize
}
return impl.download()
}
// downloader is the implementation structure used internally by Downloader.
type downloader struct {
ctx Downloader
in *s3.GetObjectInput
w io.WriterAt
wg sync.WaitGroup
m sync.Mutex
pos int64
totalBytes int64
written int64
err error
partBodyMaxRetries int
}
// download performs the implementation of the object download across ranged
// GETs.
func (d *downloader) download() (n int64, err error) {
// Spin off first worker to check additional header information
d.getChunk()
if total := d.getTotalBytes(); total >= 0 {
// Spin up workers
ch := make(chan dlchunk, d.ctx.Concurrency)
for i := 0; i < d.ctx.Concurrency; i++ {
d.wg.Add(1)
go d.downloadPart(ch)
}
// Assign work
for d.getErr() == nil {
if d.pos >= total {
break // We're finished queuing chunks
}
// Queue the next range of bytes to read.
ch <- dlchunk{w: d.w, start: d.pos, size: d.ctx.PartSize}
d.pos += d.ctx.PartSize
}
// Wait for completion
close(ch)
d.wg.Wait()
} else {
// Checking if we read anything new
for d.err == nil {
d.getChunk()
}
// We expect a 416 error letting us know we are done downloading the
// total bytes. Since we do not know the content's length, this will
// keep grabbing chunks of data until the range of bytes specified in
// the request is out of range of the content. Once, this happens, a
// 416 should occur.
e, ok := d.err.(awserr.RequestFailure)
if ok && e.StatusCode() == http.StatusRequestedRangeNotSatisfiable {
d.err = nil
}
}
// Return error
return d.written, d.err
}
// downloadPart is an individual goroutine worker reading from the ch channel
// and performing a GetObject request on the data with a given byte range.
//
// If this is the first worker, this operation also resolves the total number
// of bytes to be read so that the worker manager knows when it is finished.
func (d *downloader) downloadPart(ch chan dlchunk) {
defer d.wg.Done()
for {
chunk, ok := <-ch
if !ok || d.getErr() != nil {
break
}
if err := d.downloadChunk(chunk); err != nil {
d.setErr(err)
break
}
}
}
// getChunk grabs a chunk of data from the body.
// Not thread safe. Should only used when grabbing data on a single thread.
func (d *downloader) getChunk() {
if d.getErr() != nil {
return
}
chunk := dlchunk{w: d.w, start: d.pos, size: d.ctx.PartSize}
d.pos += d.ctx.PartSize
if err := d.downloadChunk(chunk); err != nil {
d.setErr(err)
}
}
// downloadChunk downloads the chunk froom s3
func (d *downloader) downloadChunk(chunk dlchunk) error {
in := &s3.GetObjectInput{}
awsutil.Copy(in, d.in)
// Get the next byte range of data
rng := fmt.Sprintf("bytes=%d-%d", chunk.start, chunk.start+chunk.size-1)
in.Range = &rng
var n int64
var err error
for retry := 0; retry <= d.partBodyMaxRetries; retry++ {
req, resp := d.ctx.S3.GetObjectRequest(in)
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
err = req.Send()
if err != nil {
return err
}
d.setTotalBytes(resp) // Set total if not yet set.
n, err = io.Copy(&chunk, resp.Body)
resp.Body.Close()
if err == nil {
break
}
chunk.cur = 0
logMessage(d.ctx.S3, aws.LogDebugWithRequestRetries,
fmt.Sprintf("DEBUG: object part body download interrupted %s, err, %v, retrying attempt %d",
aws.StringValue(in.Key), err, retry))
}
d.incrWritten(n)
return err
}
func logMessage(svc s3iface.S3API, level aws.LogLevelType, msg string) {
s, ok := svc.(*s3.S3)
if !ok {
return
}
if s.Config.Logger == nil {
return
}
if s.Config.LogLevel.Matches(level) {
s.Config.Logger.Log(msg)
}
}
// getTotalBytes is a thread-safe getter for retrieving the total byte status.
func (d *downloader) getTotalBytes() int64 {
d.m.Lock()
defer d.m.Unlock()
return d.totalBytes
}
// setTotalBytes is a thread-safe setter for setting the total byte status.
// Will extract the object's total bytes from the Content-Range if the file
// will be chunked, or Content-Length. Content-Length is used when the response
// does not include a Content-Range. Meaning the object was not chunked. This
// occurs when the full file fits within the PartSize directive.
func (d *downloader) setTotalBytes(resp *s3.GetObjectOutput) {
d.m.Lock()
defer d.m.Unlock()
if d.totalBytes >= 0 {
return
}
if resp.ContentRange == nil {
// ContentRange is nil when the full file contents is provied, and
// is not chunked. Use ContentLength instead.
if resp.ContentLength != nil {
d.totalBytes = *resp.ContentLength
return
}
} else {
parts := strings.Split(*resp.ContentRange, "/")
total := int64(-1)
var err error
// Checking for whether or not a numbered total exists
// If one does not exist, we will assume the total to be -1, undefined,
// and sequentially download each chunk until hitting a 416 error
totalStr := parts[len(parts)-1]
if totalStr != "*" {
total, err = strconv.ParseInt(totalStr, 10, 64)
if err != nil {
d.err = err
return
}
}
d.totalBytes = total
}
}
func (d *downloader) incrWritten(n int64) {
d.m.Lock()
defer d.m.Unlock()
d.written += n
}
// getErr is a thread-safe getter for the error object
func (d *downloader) getErr() error {
d.m.Lock()
defer d.m.Unlock()
return d.err
}
// setErr is a thread-safe setter for the error object
func (d *downloader) setErr(e error) {
d.m.Lock()
defer d.m.Unlock()
d.err = e
}
// dlchunk represents a single chunk of data to write by the worker routine.
// This structure also implements an io.SectionReader style interface for
// io.WriterAt, effectively making it an io.SectionWriter (which does not
// exist).
type dlchunk struct {
w io.WriterAt
start int64
size int64
cur int64
}
// Write wraps io.WriterAt for the dlchunk, writing from the dlchunk's start
// position to its end (or EOF).
func (c *dlchunk) Write(p []byte) (n int, err error) {
if c.cur >= c.size {
return 0, io.EOF
}
n, err = c.w.WriteAt(p, c.start+c.cur)
c.cur += int64(n)
return
}

683
vendor/github.com/aws/aws-sdk-go/service/s3/s3manager/upload.go generated vendored Normal file
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@ -0,0 +1,683 @@
package s3manager
import (
"bytes"
"fmt"
"io"
"sort"
"sync"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3iface"
)
// MaxUploadParts is the maximum allowed number of parts in a multi-part upload
// on Amazon S3.
const MaxUploadParts = 10000
// MinUploadPartSize is the minimum allowed part size when uploading a part to
// Amazon S3.
const MinUploadPartSize int64 = 1024 * 1024 * 5
// DefaultUploadPartSize is the default part size to buffer chunks of a
// payload into.
const DefaultUploadPartSize = MinUploadPartSize
// DefaultUploadConcurrency is the default number of goroutines to spin up when
// using Upload().
const DefaultUploadConcurrency = 5
// A MultiUploadFailure wraps a failed S3 multipart upload. An error returned
// will satisfy this interface when a multi part upload failed to upload all
// chucks to S3. In the case of a failure the UploadID is needed to operate on
// the chunks, if any, which were uploaded.
//
// Example:
//
// u := s3manager.NewUploader(opts)
// output, err := u.upload(input)
// if err != nil {
// if multierr, ok := err.(s3manager.MultiUploadFailure); ok {
// // Process error and its associated uploadID
// fmt.Println("Error:", multierr.Code(), multierr.Message(), multierr.UploadID())
// } else {
// // Process error generically
// fmt.Println("Error:", err.Error())
// }
// }
//
type MultiUploadFailure interface {
awserr.Error
// Returns the upload id for the S3 multipart upload that failed.
UploadID() string
}
// So that the Error interface type can be included as an anonymous field
// in the multiUploadError struct and not conflict with the error.Error() method.
type awsError awserr.Error
// A multiUploadError wraps the upload ID of a failed s3 multipart upload.
// Composed of BaseError for code, message, and original error
//
// Should be used for an error that occurred failing a S3 multipart upload,
// and a upload ID is available. If an uploadID is not available a more relevant
type multiUploadError struct {
awsError
// ID for multipart upload which failed.
uploadID string
}
// Error returns the string representation of the error.
//
// See apierr.BaseError ErrorWithExtra for output format
//
// Satisfies the error interface.
func (m multiUploadError) Error() string {
extra := fmt.Sprintf("upload id: %s", m.uploadID)
return awserr.SprintError(m.Code(), m.Message(), extra, m.OrigErr())
}
// String returns the string representation of the error.
// Alias for Error to satisfy the stringer interface.
func (m multiUploadError) String() string {
return m.Error()
}
// UploadID returns the id of the S3 upload which failed.
func (m multiUploadError) UploadID() string {
return m.uploadID
}
// UploadInput contains all input for upload requests to Amazon S3.
type UploadInput struct {
// The canned ACL to apply to the object.
ACL *string `location:"header" locationName:"x-amz-acl" type:"string"`
Bucket *string `location:"uri" locationName:"Bucket" type:"string" required:"true"`
// Specifies caching behavior along the request/reply chain.
CacheControl *string `location:"header" locationName:"Cache-Control" type:"string"`
// Specifies presentational information for the object.
ContentDisposition *string `location:"header" locationName:"Content-Disposition" type:"string"`
// Specifies what content encodings have been applied to the object and thus
// what decoding mechanisms must be applied to obtain the media-type referenced
// by the Content-Type header field.
ContentEncoding *string `location:"header" locationName:"Content-Encoding" type:"string"`
// The language the content is in.
ContentLanguage *string `location:"header" locationName:"Content-Language" type:"string"`
// A standard MIME type describing the format of the object data.
ContentType *string `location:"header" locationName:"Content-Type" type:"string"`
// The date and time at which the object is no longer cacheable.
Expires *time.Time `location:"header" locationName:"Expires" type:"timestamp" timestampFormat:"rfc822"`
// Gives the grantee READ, READ_ACP, and WRITE_ACP permissions on the object.
GrantFullControl *string `location:"header" locationName:"x-amz-grant-full-control" type:"string"`
// Allows grantee to read the object data and its metadata.
GrantRead *string `location:"header" locationName:"x-amz-grant-read" type:"string"`
// Allows grantee to read the object ACL.
GrantReadACP *string `location:"header" locationName:"x-amz-grant-read-acp" type:"string"`
// Allows grantee to write the ACL for the applicable object.
GrantWriteACP *string `location:"header" locationName:"x-amz-grant-write-acp" type:"string"`
Key *string `location:"uri" locationName:"Key" type:"string" required:"true"`
// A map of metadata to store with the object in S3.
Metadata map[string]*string `location:"headers" locationName:"x-amz-meta-" type:"map"`
// Confirms that the requester knows that she or he will be charged for the
// request. Bucket owners need not specify this parameter in their requests.
// Documentation on downloading objects from requester pays buckets can be found
// at http://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectsinRequesterPaysBuckets.html
RequestPayer *string `location:"header" locationName:"x-amz-request-payer" type:"string"`
// Specifies the algorithm to use to when encrypting the object (e.g., AES256,
// aws:kms).
SSECustomerAlgorithm *string `location:"header" locationName:"x-amz-server-side-encryption-customer-algorithm" type:"string"`
// Specifies the customer-provided encryption key for Amazon S3 to use in encrypting
// data. This value is used to store the object and then it is discarded; Amazon
// does not store the encryption key. The key must be appropriate for use with
// the algorithm specified in the x-amz-server-side​-encryption​-customer-algorithm
// header.
SSECustomerKey *string `location:"header" locationName:"x-amz-server-side-encryption-customer-key" type:"string"`
// Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321.
// Amazon S3 uses this header for a message integrity check to ensure the encryption
// key was transmitted without error.
SSECustomerKeyMD5 *string `location:"header" locationName:"x-amz-server-side-encryption-customer-key-MD5" type:"string"`
// Specifies the AWS KMS key ID to use for object encryption. All GET and PUT
// requests for an object protected by AWS KMS will fail if not made via SSL
// or using SigV4. Documentation on configuring any of the officially supported
// AWS SDKs and CLI can be found at http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingAWSSDK.html#specify-signature-version
SSEKMSKeyId *string `location:"header" locationName:"x-amz-server-side-encryption-aws-kms-key-id" type:"string"`
// The Server-side encryption algorithm used when storing this object in S3
// (e.g., AES256, aws:kms).
ServerSideEncryption *string `location:"header" locationName:"x-amz-server-side-encryption" type:"string"`
// The type of storage to use for the object. Defaults to 'STANDARD'.
StorageClass *string `location:"header" locationName:"x-amz-storage-class" type:"string"`
// If the bucket is configured as a website, redirects requests for this object
// to another object in the same bucket or to an external URL. Amazon S3 stores
// the value of this header in the object metadata.
WebsiteRedirectLocation *string `location:"header" locationName:"x-amz-website-redirect-location" type:"string"`
// The readable body payload to send to S3.
Body io.Reader
}
// UploadOutput represents a response from the Upload() call.
type UploadOutput struct {
// The URL where the object was uploaded to.
Location string
// The version of the object that was uploaded. Will only be populated if
// the S3 Bucket is versioned. If the bucket is not versioned this field
// will not be set.
VersionID *string
// The ID for a multipart upload to S3. In the case of an error the error
// can be cast to the MultiUploadFailure interface to extract the upload ID.
UploadID string
}
// The Uploader structure that calls Upload(). It is safe to call Upload()
// on this structure for multiple objects and across concurrent goroutines.
// Mutating the Uploader's properties is not safe to be done concurrently.
type Uploader struct {
// The buffer size (in bytes) to use when buffering data into chunks and
// sending them as parts to S3. The minimum allowed part size is 5MB, and
// if this value is set to zero, the DefaultPartSize value will be used.
PartSize int64
// The number of goroutines to spin up in parallel when sending parts.
// If this is set to zero, the DefaultUploadConcurrency value will be used.
Concurrency int
// Setting this value to true will cause the SDK to avoid calling
// AbortMultipartUpload on a failure, leaving all successfully uploaded
// parts on S3 for manual recovery.
//
// Note that storing parts of an incomplete multipart upload counts towards
// space usage on S3 and will add additional costs if not cleaned up.
LeavePartsOnError bool
// MaxUploadParts is the max number of parts which will be uploaded to S3.
// Will be used to calculate the partsize of the object to be uploaded.
// E.g: 5GB file, with MaxUploadParts set to 100, will upload the file
// as 100, 50MB parts.
// With a limited of s3.MaxUploadParts (10,000 parts).
MaxUploadParts int
// The client to use when uploading to S3.
S3 s3iface.S3API
}
// NewUploader creates a new Uploader instance to upload objects to S3. Pass In
// additional functional options to customize the uploader's behavior. Requires a
// client.ConfigProvider in order to create a S3 service client. The session.Session
// satisfies the client.ConfigProvider interface.
//
// Example:
// // The session the S3 Uploader will use
// sess, err := session.NewSession()
//
// // Create an uploader with the session and default options
// uploader := s3manager.NewUploader(sess)
//
// // Create an uploader with the session and custom options
// uploader := s3manager.NewUploader(session, func(u *s3manager.Uploader) {
// u.PartSize = 64 * 1024 * 1024 // 64MB per part
// })
func NewUploader(c client.ConfigProvider, options ...func(*Uploader)) *Uploader {
u := &Uploader{
S3: s3.New(c),
PartSize: DefaultUploadPartSize,
Concurrency: DefaultUploadConcurrency,
LeavePartsOnError: false,
MaxUploadParts: MaxUploadParts,
}
for _, option := range options {
option(u)
}
return u
}
// NewUploaderWithClient creates a new Uploader instance to upload objects to S3. Pass in
// additional functional options to customize the uploader's behavior. Requires
// a S3 service client to make S3 API calls.
//
// Example:
// // The session the S3 Uploader will use
// sess, err := session.NewSession()
//
// // S3 service client the Upload manager will use.
// s3Svc := s3.New(sess)
//
// // Create an uploader with S3 client and default options
// uploader := s3manager.NewUploaderWithClient(s3Svc)
//
// // Create an uploader with S3 client and custom options
// uploader := s3manager.NewUploaderWithClient(s3Svc, func(u *s3manager.Uploader) {
// u.PartSize = 64 * 1024 * 1024 // 64MB per part
// })
func NewUploaderWithClient(svc s3iface.S3API, options ...func(*Uploader)) *Uploader {
u := &Uploader{
S3: svc,
PartSize: DefaultUploadPartSize,
Concurrency: DefaultUploadConcurrency,
LeavePartsOnError: false,
MaxUploadParts: MaxUploadParts,
}
for _, option := range options {
option(u)
}
return u
}
// Upload uploads an object to S3, intelligently buffering large files into
// smaller chunks and sending them in parallel across multiple goroutines. You
// can configure the buffer size and concurrency through the Uploader's parameters.
//
// Additional functional options can be provided to configure the individual
// upload. These options are copies of the Uploader instance Upload is called from.
// Modifying the options will not impact the original Uploader instance.
//
// It is safe to call this method concurrently across goroutines.
//
// Example:
// // Upload input parameters
// upParams := &s3manager.UploadInput{
// Bucket: &bucketName,
// Key: &keyName,
// Body: file,
// }
//
// // Perform an upload.
// result, err := uploader.Upload(upParams)
//
// // Perform upload with options different than the those in the Uploader.
// result, err := uploader.Upload(upParams, func(u *s3manager.Uploader) {
// u.PartSize = 10 * 1024 * 1024 // 10MB part size
// u.LeavePartsOnError = true // Don't delete the parts if the upload fails.
// })
func (u Uploader) Upload(input *UploadInput, options ...func(*Uploader)) (*UploadOutput, error) {
i := uploader{in: input, ctx: u}
for _, option := range options {
option(&i.ctx)
}
return i.upload()
}
// internal structure to manage an upload to S3.
type uploader struct {
ctx Uploader
in *UploadInput
readerPos int64 // current reader position
totalSize int64 // set to -1 if the size is not known
}
// internal logic for deciding whether to upload a single part or use a
// multipart upload.
func (u *uploader) upload() (*UploadOutput, error) {
u.init()
if u.ctx.PartSize < MinUploadPartSize {
msg := fmt.Sprintf("part size must be at least %d bytes", MinUploadPartSize)
return nil, awserr.New("ConfigError", msg, nil)
}
// Do one read to determine if we have more than one part
reader, _, err := u.nextReader()
if err == io.EOF { // single part
return u.singlePart(reader)
} else if err != nil {
return nil, awserr.New("ReadRequestBody", "read upload data failed", err)
}
mu := multiuploader{uploader: u}
return mu.upload(reader)
}
// init will initialize all default options.
func (u *uploader) init() {
if u.ctx.Concurrency == 0 {
u.ctx.Concurrency = DefaultUploadConcurrency
}
if u.ctx.PartSize == 0 {
u.ctx.PartSize = DefaultUploadPartSize
}
// Try to get the total size for some optimizations
u.initSize()
}
// initSize tries to detect the total stream size, setting u.totalSize. If
// the size is not known, totalSize is set to -1.
func (u *uploader) initSize() {
u.totalSize = -1
switch r := u.in.Body.(type) {
case io.Seeker:
pos, _ := r.Seek(0, 1)
defer r.Seek(pos, 0)
n, err := r.Seek(0, 2)
if err != nil {
return
}
u.totalSize = n
// Try to adjust partSize if it is too small and account for
// integer division truncation.
if u.totalSize/u.ctx.PartSize >= int64(u.ctx.MaxUploadParts) {
// Add one to the part size to account for remainders
// during the size calculation. e.g odd number of bytes.
u.ctx.PartSize = (u.totalSize / int64(u.ctx.MaxUploadParts)) + 1
}
}
}
// nextReader returns a seekable reader representing the next packet of data.
// This operation increases the shared u.readerPos counter, but note that it
// does not need to be wrapped in a mutex because nextReader is only called
// from the main thread.
func (u *uploader) nextReader() (io.ReadSeeker, int, error) {
type readerAtSeeker interface {
io.ReaderAt
io.ReadSeeker
}
switch r := u.in.Body.(type) {
case readerAtSeeker:
var err error
n := u.ctx.PartSize
if u.totalSize >= 0 {
bytesLeft := u.totalSize - u.readerPos
if bytesLeft <= u.ctx.PartSize {
err = io.EOF
n = bytesLeft
}
}
reader := io.NewSectionReader(r, u.readerPos, n)
u.readerPos += n
return reader, int(n), err
default:
part := make([]byte, u.ctx.PartSize)
n, err := readFillBuf(r, part)
u.readerPos += int64(n)
return bytes.NewReader(part[0:n]), n, err
}
}
func readFillBuf(r io.Reader, b []byte) (offset int, err error) {
for offset < len(b) && err == nil {
var n int
n, err = r.Read(b[offset:])
offset += n
}
return offset, err
}
// singlePart contains upload logic for uploading a single chunk via
// a regular PutObject request. Multipart requests require at least two
// parts, or at least 5MB of data.
func (u *uploader) singlePart(buf io.ReadSeeker) (*UploadOutput, error) {
params := &s3.PutObjectInput{}
awsutil.Copy(params, u.in)
params.Body = buf
req, out := u.ctx.S3.PutObjectRequest(params)
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
if err := req.Send(); err != nil {
return nil, err
}
url := req.HTTPRequest.URL.String()
return &UploadOutput{
Location: url,
VersionID: out.VersionId,
}, nil
}
// internal structure to manage a specific multipart upload to S3.
type multiuploader struct {
*uploader
wg sync.WaitGroup
m sync.Mutex
err error
uploadID string
parts completedParts
}
// keeps track of a single chunk of data being sent to S3.
type chunk struct {
buf io.ReadSeeker
num int64
}
// completedParts is a wrapper to make parts sortable by their part number,
// since S3 required this list to be sent in sorted order.
type completedParts []*s3.CompletedPart
func (a completedParts) Len() int { return len(a) }
func (a completedParts) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a completedParts) Less(i, j int) bool { return *a[i].PartNumber < *a[j].PartNumber }
// upload will perform a multipart upload using the firstBuf buffer containing
// the first chunk of data.
func (u *multiuploader) upload(firstBuf io.ReadSeeker) (*UploadOutput, error) {
params := &s3.CreateMultipartUploadInput{}
awsutil.Copy(params, u.in)
// Create the multipart
req, resp := u.ctx.S3.CreateMultipartUploadRequest(params)
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
if err := req.Send(); err != nil {
return nil, err
}
u.uploadID = *resp.UploadId
// Create the workers
ch := make(chan chunk, u.ctx.Concurrency)
for i := 0; i < u.ctx.Concurrency; i++ {
u.wg.Add(1)
go u.readChunk(ch)
}
// Send part 1 to the workers
var num int64 = 1
ch <- chunk{buf: firstBuf, num: num}
// Read and queue the rest of the parts
var err error
for u.geterr() == nil && err == nil {
num++
// This upload exceeded maximum number of supported parts, error now.
if num > int64(u.ctx.MaxUploadParts) || num > int64(MaxUploadParts) {
var msg string
if num > int64(u.ctx.MaxUploadParts) {
msg = fmt.Sprintf("exceeded total allowed configured MaxUploadParts (%d). Adjust PartSize to fit in this limit",
u.ctx.MaxUploadParts)
} else {
msg = fmt.Sprintf("exceeded total allowed S3 limit MaxUploadParts (%d). Adjust PartSize to fit in this limit",
MaxUploadParts)
}
u.seterr(awserr.New("TotalPartsExceeded", msg, nil))
break
}
var reader io.ReadSeeker
var nextChunkLen int
reader, nextChunkLen, err = u.nextReader()
if err != nil && err != io.EOF {
u.seterr(awserr.New(
"ReadRequestBody",
"read multipart upload data failed",
err))
break
}
if nextChunkLen == 0 {
// No need to upload empty part, if file was empty to start
// with empty single part would of been created and never
// started multipart upload.
break
}
ch <- chunk{buf: reader, num: num}
}
// Close the channel, wait for workers, and complete upload
close(ch)
u.wg.Wait()
complete := u.complete()
if err := u.geterr(); err != nil {
return nil, &multiUploadError{
awsError: awserr.New(
"MultipartUpload",
"upload multipart failed",
err),
uploadID: u.uploadID,
}
}
return &UploadOutput{
Location: aws.StringValue(complete.Location),
VersionID: complete.VersionId,
UploadID: u.uploadID,
}, nil
}
// readChunk runs in worker goroutines to pull chunks off of the ch channel
// and send() them as UploadPart requests.
func (u *multiuploader) readChunk(ch chan chunk) {
defer u.wg.Done()
for {
data, ok := <-ch
if !ok {
break
}
if u.geterr() == nil {
if err := u.send(data); err != nil {
u.seterr(err)
}
}
}
}
// send performs an UploadPart request and keeps track of the completed
// part information.
func (u *multiuploader) send(c chunk) error {
req, resp := u.ctx.S3.UploadPartRequest(&s3.UploadPartInput{
Bucket: u.in.Bucket,
Key: u.in.Key,
Body: c.buf,
UploadId: &u.uploadID,
PartNumber: &c.num,
})
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
if err := req.Send(); err != nil {
return err
}
n := c.num
completed := &s3.CompletedPart{ETag: resp.ETag, PartNumber: &n}
u.m.Lock()
u.parts = append(u.parts, completed)
u.m.Unlock()
return nil
}
// geterr is a thread-safe getter for the error object
func (u *multiuploader) geterr() error {
u.m.Lock()
defer u.m.Unlock()
return u.err
}
// seterr is a thread-safe setter for the error object
func (u *multiuploader) seterr(e error) {
u.m.Lock()
defer u.m.Unlock()
u.err = e
}
// fail will abort the multipart unless LeavePartsOnError is set to true.
func (u *multiuploader) fail() {
if u.ctx.LeavePartsOnError {
return
}
req, _ := u.ctx.S3.AbortMultipartUploadRequest(&s3.AbortMultipartUploadInput{
Bucket: u.in.Bucket,
Key: u.in.Key,
UploadId: &u.uploadID,
})
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
req.Send()
}
// complete successfully completes a multipart upload and returns the response.
func (u *multiuploader) complete() *s3.CompleteMultipartUploadOutput {
if u.geterr() != nil {
u.fail()
return nil
}
// Parts must be sorted in PartNumber order.
sort.Sort(u.parts)
req, resp := u.ctx.S3.CompleteMultipartUploadRequest(&s3.CompleteMultipartUploadInput{
Bucket: u.in.Bucket,
Key: u.in.Key,
UploadId: &u.uploadID,
MultipartUpload: &s3.CompletedMultipartUpload{Parts: u.parts},
})
req.Handlers.Build.PushBack(request.MakeAddToUserAgentFreeFormHandler("S3Manager"))
if err := req.Send(); err != nil {
u.seterr(err)
u.fail()
}
return resp
}

86
vendor/github.com/aws/aws-sdk-go/service/s3/service.go generated vendored Normal file
View file

@ -0,0 +1,86 @@
// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
package s3
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/signer/v4"
"github.com/aws/aws-sdk-go/private/protocol/restxml"
)
// S3 is a client for Amazon S3.
//The service client's operations are safe to be used concurrently.
// It is not safe to mutate any of the client's properties though.
type S3 struct {
*client.Client
}
// Used for custom client initialization logic
var initClient func(*client.Client)
// Used for custom request initialization logic
var initRequest func(*request.Request)
// A ServiceName is the name of the service the client will make API calls to.
const ServiceName = "s3"
// New creates a new instance of the S3 client with a session.
// If additional configuration is needed for the client instance use the optional
// aws.Config parameter to add your extra config.
//
// Example:
// // Create a S3 client from just a session.
// svc := s3.New(mySession)
//
// // Create a S3 client with additional configuration
// svc := s3.New(mySession, aws.NewConfig().WithRegion("us-west-2"))
func New(p client.ConfigProvider, cfgs ...*aws.Config) *S3 {
c := p.ClientConfig(ServiceName, cfgs...)
return newClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion)
}
// newClient creates, initializes and returns a new service client instance.
func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion string) *S3 {
svc := &S3{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: ServiceName,
SigningRegion: signingRegion,
Endpoint: endpoint,
APIVersion: "2006-03-01",
},
handlers,
),
}
// Handlers
svc.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
svc.Handlers.Build.PushBackNamed(restxml.BuildHandler)
svc.Handlers.Unmarshal.PushBackNamed(restxml.UnmarshalHandler)
svc.Handlers.UnmarshalMeta.PushBackNamed(restxml.UnmarshalMetaHandler)
svc.Handlers.UnmarshalError.PushBackNamed(restxml.UnmarshalErrorHandler)
// Run custom client initialization if present
if initClient != nil {
initClient(svc.Client)
}
return svc
}
// newRequest creates a new request for a S3 operation and runs any
// custom request initialization.
func (c *S3) newRequest(op *request.Operation, params, data interface{}) *request.Request {
req := c.NewRequest(op, params, data)
// Run custom request initialization if present
if initRequest != nil {
initRequest(req)
}
return req
}

44
vendor/github.com/aws/aws-sdk-go/service/s3/sse.go generated vendored Normal file
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package s3
import (
"crypto/md5"
"encoding/base64"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/request"
)
var errSSERequiresSSL = awserr.New("ConfigError", "cannot send SSE keys over HTTP.", nil)
func validateSSERequiresSSL(r *request.Request) {
if r.HTTPRequest.URL.Scheme != "https" {
p, _ := awsutil.ValuesAtPath(r.Params, "SSECustomerKey||CopySourceSSECustomerKey")
if len(p) > 0 {
r.Error = errSSERequiresSSL
}
}
}
func computeSSEKeys(r *request.Request) {
headers := []string{
"x-amz-server-side-encryption-customer-key",
"x-amz-copy-source-server-side-encryption-customer-key",
}
for _, h := range headers {
md5h := h + "-md5"
if key := r.HTTPRequest.Header.Get(h); key != "" {
// Base64-encode the value
b64v := base64.StdEncoding.EncodeToString([]byte(key))
r.HTTPRequest.Header.Set(h, b64v)
// Add MD5 if it wasn't computed
if r.HTTPRequest.Header.Get(md5h) == "" {
sum := md5.Sum([]byte(key))
b64sum := base64.StdEncoding.EncodeToString(sum[:])
r.HTTPRequest.Header.Set(md5h, b64sum)
}
}
}
}

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vendor/github.com/aws/aws-sdk-go/service/s3/statusok_error.go generated vendored Normal file
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package s3
import (
"bytes"
"io/ioutil"
"net/http"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
func copyMultipartStatusOKUnmarhsalError(r *request.Request) {
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "unable to read response body", err)
return
}
body := bytes.NewReader(b)
r.HTTPResponse.Body = aws.ReadSeekCloser(body)
defer r.HTTPResponse.Body.(aws.ReaderSeekerCloser).Seek(0, 0)
if body.Len() == 0 {
// If there is no body don't attempt to parse the body.
return
}
unmarshalError(r)
if err, ok := r.Error.(awserr.Error); ok && err != nil {
if err.Code() == "SerializationError" {
r.Error = nil
return
}
r.HTTPResponse.StatusCode = http.StatusServiceUnavailable
}
}

65
vendor/github.com/aws/aws-sdk-go/service/s3/unmarshal_error.go generated vendored Normal file
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package s3
import (
"encoding/xml"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
type xmlErrorResponse struct {
XMLName xml.Name `xml:"Error"`
Code string `xml:"Code"`
Message string `xml:"Message"`
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
defer io.Copy(ioutil.Discard, r.HTTPResponse.Body)
// Bucket exists in a different region, and request needs
// to be made to the correct region.
if r.HTTPResponse.StatusCode == http.StatusMovedPermanently {
r.Error = awserr.NewRequestFailure(
awserr.New("BucketRegionError",
fmt.Sprintf("incorrect region, the bucket is not in '%s' region",
aws.StringValue(r.Config.Region)),
nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
return
}
var errCode, errMsg string
// Attempt to parse error from body if it is known
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
errCode = "SerializationError"
errMsg = "failed to decode S3 XML error response"
} else {
errCode = resp.Code
errMsg = resp.Message
}
// Fallback to status code converted to message if still no error code
if len(errCode) == 0 {
statusText := http.StatusText(r.HTTPResponse.StatusCode)
errCode = strings.Replace(statusText, " ", "", -1)
errMsg = statusText
}
r.Error = awserr.NewRequestFailure(
awserr.New(errCode, errMsg, nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
}

123
vendor/github.com/aws/aws-sdk-go/service/s3/waiters.go generated vendored Normal file
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// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
package s3
import (
"github.com/aws/aws-sdk-go/private/waiter"
)
func (c *S3) WaitUntilBucketExists(input *HeadBucketInput) error {
waiterCfg := waiter.Config{
Operation: "HeadBucket",
Delay: 5,
MaxAttempts: 20,
Acceptors: []waiter.WaitAcceptor{
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 200,
},
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 301,
},
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 403,
},
{
State: "retry",
Matcher: "status",
Argument: "",
Expected: 404,
},
},
}
w := waiter.Waiter{
Client: c,
Input: input,
Config: waiterCfg,
}
return w.Wait()
}
func (c *S3) WaitUntilBucketNotExists(input *HeadBucketInput) error {
waiterCfg := waiter.Config{
Operation: "HeadBucket",
Delay: 5,
MaxAttempts: 20,
Acceptors: []waiter.WaitAcceptor{
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 404,
},
},
}
w := waiter.Waiter{
Client: c,
Input: input,
Config: waiterCfg,
}
return w.Wait()
}
func (c *S3) WaitUntilObjectExists(input *HeadObjectInput) error {
waiterCfg := waiter.Config{
Operation: "HeadObject",
Delay: 5,
MaxAttempts: 20,
Acceptors: []waiter.WaitAcceptor{
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 200,
},
{
State: "retry",
Matcher: "status",
Argument: "",
Expected: 404,
},
},
}
w := waiter.Waiter{
Client: c,
Input: input,
Config: waiterCfg,
}
return w.Wait()
}
func (c *S3) WaitUntilObjectNotExists(input *HeadObjectInput) error {
waiterCfg := waiter.Config{
Operation: "HeadObject",
Delay: 5,
MaxAttempts: 20,
Acceptors: []waiter.WaitAcceptor{
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 404,
},
},
}
w := waiter.Waiter{
Client: c,
Input: input,
Config: waiterCfg,
}
return w.Wait()
}

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vendor/github.com/aws/aws-sdk-go/service/sts/api.go generated vendored Normal file
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vendor/github.com/aws/aws-sdk-go/service/sts/customizations.go generated vendored Normal file
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package sts
import "github.com/aws/aws-sdk-go/aws/request"
func init() {
initRequest = func(r *request.Request) {
switch r.Operation.Name {
case opAssumeRoleWithSAML, opAssumeRoleWithWebIdentity:
r.Handlers.Sign.Clear() // these operations are unsigned
}
}
}

130
vendor/github.com/aws/aws-sdk-go/service/sts/service.go generated vendored Normal file
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// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
package sts
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/signer/v4"
"github.com/aws/aws-sdk-go/private/protocol/query"
)
// The AWS Security Token Service (STS) is a web service that enables you to
// request temporary, limited-privilege credentials for AWS Identity and Access
// Management (IAM) users or for users that you authenticate (federated users).
// This guide provides descriptions of the STS API. For more detailed information
// about using this service, go to Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html).
//
// As an alternative to using the API, you can use one of the AWS SDKs, which
// consist of libraries and sample code for various programming languages and
// platforms (Java, Ruby, .NET, iOS, Android, etc.). The SDKs provide a convenient
// way to create programmatic access to STS. For example, the SDKs take care
// of cryptographically signing requests, managing errors, and retrying requests
// automatically. For information about the AWS SDKs, including how to download
// and install them, see the Tools for Amazon Web Services page (http://aws.amazon.com/tools/).
//
// For information about setting up signatures and authorization through the
// API, go to Signing AWS API Requests (http://docs.aws.amazon.com/general/latest/gr/signing_aws_api_requests.html)
// in the AWS General Reference. For general information about the Query API,
// go to Making Query Requests (http://docs.aws.amazon.com/IAM/latest/UserGuide/IAM_UsingQueryAPI.html)
// in Using IAM. For information about using security tokens with other AWS
// products, go to AWS Services That Work with IAM (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-services-that-work-with-iam.html)
// in the IAM User Guide.
//
// If you're new to AWS and need additional technical information about a specific
// AWS product, you can find the product's technical documentation at http://aws.amazon.com/documentation/
// (http://aws.amazon.com/documentation/).
//
// Endpoints
//
// The AWS Security Token Service (STS) has a default endpoint of https://sts.amazonaws.com
// that maps to the US East (N. Virginia) region. Additional regions are available
// and are activated by default. For more information, see Activating and Deactivating
// AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
// in the IAM User Guide.
//
// For information about STS endpoints, see Regions and Endpoints (http://docs.aws.amazon.com/general/latest/gr/rande.html#sts_region)
// in the AWS General Reference.
//
// Recording API requests
//
// STS supports AWS CloudTrail, which is a service that records AWS calls for
// your AWS account and delivers log files to an Amazon S3 bucket. By using
// information collected by CloudTrail, you can determine what requests were
// successfully made to STS, who made the request, when it was made, and so
// on. To learn more about CloudTrail, including how to turn it on and find
// your log files, see the AWS CloudTrail User Guide (http://docs.aws.amazon.com/awscloudtrail/latest/userguide/what_is_cloud_trail_top_level.html).
//The service client's operations are safe to be used concurrently.
// It is not safe to mutate any of the client's properties though.
type STS struct {
*client.Client
}
// Used for custom client initialization logic
var initClient func(*client.Client)
// Used for custom request initialization logic
var initRequest func(*request.Request)
// A ServiceName is the name of the service the client will make API calls to.
const ServiceName = "sts"
// New creates a new instance of the STS client with a session.
// If additional configuration is needed for the client instance use the optional
// aws.Config parameter to add your extra config.
//
// Example:
// // Create a STS client from just a session.
// svc := sts.New(mySession)
//
// // Create a STS client with additional configuration
// svc := sts.New(mySession, aws.NewConfig().WithRegion("us-west-2"))
func New(p client.ConfigProvider, cfgs ...*aws.Config) *STS {
c := p.ClientConfig(ServiceName, cfgs...)
return newClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion)
}
// newClient creates, initializes and returns a new service client instance.
func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion string) *STS {
svc := &STS{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: ServiceName,
SigningRegion: signingRegion,
Endpoint: endpoint,
APIVersion: "2011-06-15",
},
handlers,
),
}
// Handlers
svc.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
svc.Handlers.Build.PushBackNamed(query.BuildHandler)
svc.Handlers.Unmarshal.PushBackNamed(query.UnmarshalHandler)
svc.Handlers.UnmarshalMeta.PushBackNamed(query.UnmarshalMetaHandler)
svc.Handlers.UnmarshalError.PushBackNamed(query.UnmarshalErrorHandler)
// Run custom client initialization if present
if initClient != nil {
initClient(svc.Client)
}
return svc
}
// newRequest creates a new request for a STS operation and runs any
// custom request initialization.
func (c *STS) newRequest(op *request.Operation, params, data interface{}) *request.Request {
req := c.NewRequest(op, params, data)
// Run custom request initialization if present
if initRequest != nil {
initRequest(req)
}
return req
}