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Update s3 library (again)

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This commit is contained in:
Alexander Neumann 2016-01-07 20:23:38 +01:00
parent 181480b68b
commit 0e9236475b
41 changed files with 2793 additions and 1753 deletions
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4
Godeps/Godeps.json generated
View file

@ -24,8 +24,8 @@
},
{
"ImportPath": "github.com/minio/minio-go",
"Comment": "v0.2.5-201-g410319e",
"Rev": "410319e0e39a372998f4d9cd2b9da4ff243ae388"
"Comment": "v0.2.5-205-g38be406",
"Rev": "38be40605dc37d2d7ec06169218365b46ae33e4b"
},
{
"ImportPath": "github.com/pkg/sftp",

2
Godeps/_workspace/src/github.com/minio/minio-go/.travis.yml generated vendored
View file

@ -15,7 +15,7 @@ go:
script:
- go vet ./...
- go test -test.short -race -v ./...
- go test -short -race -v ./...
notifications:
slack:

10
Godeps/_workspace/src/github.com/minio/minio-go/README.md generated vendored
View file

@ -67,14 +67,14 @@ func main() {
* [RemoveBucket(bucketName) error](examples/s3/removebucket.go)
* [GetBucketACL(bucketName) (BucketACL, error)](examples/s3/getbucketacl.go)
* [SetBucketACL(bucketName, BucketACL) error)](examples/s3/setbucketacl.go)
* [ListBuckets() []BucketStat](examples/s3/listbuckets.go)
* [ListObjects(bucketName, objectPrefix, recursive, chan<- struct{}) <-chan ObjectStat](examples/s3/listobjects.go)
* [ListIncompleteUploads(bucketName, prefix, recursive, chan<- struct{}) <-chan ObjectMultipartStat](examples/s3/listincompleteuploads.go)
* [ListBuckets() []BucketInfo](examples/s3/listbuckets.go)
* [ListObjects(bucketName, objectPrefix, recursive, chan<- struct{}) <-chan ObjectInfo](examples/s3/listobjects.go)
* [ListIncompleteUploads(bucketName, prefix, recursive, chan<- struct{}) <-chan ObjectMultipartInfo](examples/s3/listincompleteuploads.go)
### Object Operations.
* [PutObject(bucketName, objectName, io.Reader, size, contentType) error](examples/s3/putobject.go)
* [GetObject(bucketName, objectName) (io.ReadCloser, ObjectStat, error)](examples/s3/getobject.go)
* [StatObject(bucketName, objectName) (ObjectStat, error)](examples/s3/statobject.go)
* [GetObject(bucketName, objectName) (io.ReadCloser, ObjectInfo, error)](examples/s3/getobject.go)
* [StatObject(bucketName, objectName) (ObjectInfo, error)](examples/s3/statobject.go)
* [RemoveObject(bucketName, objectName) error](examples/s3/removeobject.go)
* [RemoveIncompleteUpload(bucketName, objectName) <-chan error](examples/s3/removeincompleteupload.go)

53
Godeps/_workspace/src/github.com/minio/minio-go/api-definitions.go generated vendored
View file

@ -16,26 +16,27 @@
package minio
import (
"io"
"time"
)
import "time"
// BucketStat container for bucket metadata.
type BucketStat struct {
// BucketInfo container for bucket metadata.
type BucketInfo struct {
// The name of the bucket.
Name string
// Date the bucket was created.
CreationDate time.Time
}
// ObjectStat container for object metadata.
type ObjectStat struct {
// ObjectInfo container for object metadata.
type ObjectInfo struct {
// An ETag is optionally set to md5sum of an object. In case of multipart objects,
// ETag is of the form MD5SUM-N where MD5SUM is md5sum of all individual md5sums of
// each parts concatenated into one string.
ETag string
Key string
LastModified time.Time
Size int64
ContentType string
Key string // Name of the object
LastModified time.Time // Date and time the object was last modified.
Size int64 // Size in bytes of the object.
ContentType string // A standard MIME type describing the format of the object data.
// Owner name.
Owner struct {
@ -50,18 +51,21 @@ type ObjectStat struct {
Err error
}
// ObjectMultipartStat container for multipart object metadata.
type ObjectMultipartStat struct {
// ObjectMultipartInfo container for multipart object metadata.
type ObjectMultipartInfo struct {
// Date and time at which the multipart upload was initiated.
Initiated time.Time `type:"timestamp" timestampFormat:"iso8601"`
Initiator initiator
Owner owner
// The type of storage to use for the object. Defaults to 'STANDARD'.
StorageClass string
// Key of the object for which the multipart upload was initiated.
Key string
// Size in bytes of the object.
Size int64
// Upload ID that identifies the multipart upload.
@ -70,24 +74,3 @@ type ObjectMultipartStat struct {
// Error
Err error
}
// partData - container for each part.
type partData struct {
MD5Sum []byte
Sha256Sum []byte
ReadCloser io.ReadCloser
Size int64
Number int // partData number.
// Error
Err error
}
// putObjectData - container for each single PUT operation.
type putObjectData struct {
MD5Sum []byte
Sha256Sum []byte
ReadCloser io.ReadCloser
Size int64
ContentType string
}

93
Godeps/_workspace/src/github.com/minio/minio-go/api-error-response.go generated vendored
View file

@ -17,7 +17,6 @@
package minio
import (
"encoding/json"
"encoding/xml"
"fmt"
"net/http"
@ -36,7 +35,7 @@ import (
</Error>
*/
// ErrorResponse is the type error returned by some API operations.
// ErrorResponse - Is the typed error returned by all API operations.
type ErrorResponse struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
@ -46,12 +45,13 @@ type ErrorResponse struct {
RequestID string `xml:"RequestId"`
HostID string `xml:"HostId"`
// This is a new undocumented field, set only if available.
// Region where the bucket is located. This header is returned
// only in HEAD bucket and ListObjects response.
AmzBucketRegion string
}
// ToErrorResponse returns parsed ErrorResponse struct, if input is nil or not ErrorResponse return value is nil
// this fuction is useful when some one wants to dig deeper into the error structures over the network.
// ToErrorResponse - Returns parsed ErrorResponse struct from body and
// http headers.
//
// For example:
//
@ -61,7 +61,6 @@ type ErrorResponse struct {
// reader, stat, err := s3.GetObject(...)
// if err != nil {
// resp := s3.ToErrorResponse(err)
// fmt.Println(resp.ToXML())
// }
// ...
func ToErrorResponse(err error) ErrorResponse {
@ -73,47 +72,32 @@ func ToErrorResponse(err error) ErrorResponse {
}
}
// ToXML send raw xml marshalled as string
func (e ErrorResponse) ToXML() string {
b, err := xml.Marshal(&e)
if err != nil {
panic(err)
}
return string(b)
}
// ToJSON send raw json marshalled as string
func (e ErrorResponse) ToJSON() string {
b, err := json.Marshal(&e)
if err != nil {
panic(err)
}
return string(b)
}
// Error formats HTTP error string
// Error - Returns HTTP error string
func (e ErrorResponse) Error() string {
return e.Message
}
// Common reporting string
// Common string for errors to report issue location in unexpected
// cases.
const (
reportIssue = "Please report this issue at https://github.com/minio/minio-go/issues."
)
// HTTPRespToErrorResponse returns a new encoded ErrorResponse structure
// HTTPRespToErrorResponse returns a new encoded ErrorResponse
// structure as error.
func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string) error {
if resp == nil {
msg := "Response is empty. " + reportIssue
return ErrInvalidArgument(msg)
}
var errorResponse ErrorResponse
err := xmlDecoder(resp.Body, &errorResponse)
var errResp ErrorResponse
err := xmlDecoder(resp.Body, &errResp)
// Xml decoding failed with no body, fall back to HTTP headers.
if err != nil {
switch resp.StatusCode {
case http.StatusNotFound:
if objectName == "" {
errorResponse = ErrorResponse{
errResp = ErrorResponse{
Code: "NoSuchBucket",
Message: "The specified bucket does not exist.",
BucketName: bucketName,
@ -122,7 +106,7 @@ func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string)
AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
}
} else {
errorResponse = ErrorResponse{
errResp = ErrorResponse{
Code: "NoSuchKey",
Message: "The specified key does not exist.",
BucketName: bucketName,
@ -133,7 +117,7 @@ func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string)
}
}
case http.StatusForbidden:
errorResponse = ErrorResponse{
errResp = ErrorResponse{
Code: "AccessDenied",
Message: "Access Denied.",
BucketName: bucketName,
@ -143,7 +127,7 @@ func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string)
AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
}
case http.StatusConflict:
errorResponse = ErrorResponse{
errResp = ErrorResponse{
Code: "Conflict",
Message: "Bucket not empty.",
BucketName: bucketName,
@ -152,7 +136,7 @@ func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string)
AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
}
default:
errorResponse = ErrorResponse{
errResp = ErrorResponse{
Code: resp.Status,
Message: resp.Status,
BucketName: bucketName,
@ -162,10 +146,21 @@ func HTTPRespToErrorResponse(resp *http.Response, bucketName, objectName string)
}
}
}
return errorResponse
// AccessDenied without a signature mismatch code, usually means
// that the bucket policy has certain restrictions where some API
// operations are not allowed. Handle this case so that top level
// callers can interpret this easily and fall back if needed to a
// lower functionality call. Read each individual API specific
// code for such fallbacks.
if errResp.Code == "AccessDenied" && errResp.Message == "Access Denied" {
errResp.Code = "NotImplemented"
errResp.Message = "Operation is not allowed according to your bucket policy."
}
return errResp
}
// ErrEntityTooLarge input size is larger than supported maximum.
// ErrEntityTooLarge - Input size is larger than supported maximum.
func ErrEntityTooLarge(totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Your proposed upload size ‘%d’ exceeds the maximum allowed object size '5GiB' for single PUT operation.", totalSize)
return ErrorResponse{
@ -176,7 +171,19 @@ func ErrEntityTooLarge(totalSize int64, bucketName, objectName string) error {
}
}
// ErrUnexpectedShortRead unexpected shorter read of input buffer from target.
// ErrEntityTooSmall - Input size is smaller than supported minimum.
func ErrEntityTooSmall(totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Your proposed upload size ‘%d’ is below the minimum allowed object size '0B' for single PUT operation.", totalSize)
return ErrorResponse{
Code: "EntityTooLarge",
Message: msg,
BucketName: bucketName,
Key: objectName,
}
}
// ErrUnexpectedShortRead - Unexpected shorter read of input buffer from
// target.
func ErrUnexpectedShortRead(totalRead, totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Data read ‘%s’ is shorter than the size ‘%s’ of input buffer.",
strconv.FormatInt(totalRead, 10), strconv.FormatInt(totalSize, 10))
@ -188,7 +195,7 @@ func ErrUnexpectedShortRead(totalRead, totalSize int64, bucketName, objectName s
}
}
// ErrUnexpectedEOF unexpected end of file reached.
// ErrUnexpectedEOF - Unexpected end of file reached.
func ErrUnexpectedEOF(totalRead, totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Data read ‘%s’ is not equal to the size ‘%s’ of the input Reader.",
strconv.FormatInt(totalRead, 10), strconv.FormatInt(totalSize, 10))
@ -200,7 +207,7 @@ func ErrUnexpectedEOF(totalRead, totalSize int64, bucketName, objectName string)
}
}
// ErrInvalidBucketName - invalid bucket name response.
// ErrInvalidBucketName - Invalid bucket name response.
func ErrInvalidBucketName(message string) error {
return ErrorResponse{
Code: "InvalidBucketName",
@ -209,7 +216,7 @@ func ErrInvalidBucketName(message string) error {
}
}
// ErrInvalidObjectName - invalid object name response.
// ErrInvalidObjectName - Invalid object name response.
func ErrInvalidObjectName(message string) error {
return ErrorResponse{
Code: "NoSuchKey",
@ -218,7 +225,7 @@ func ErrInvalidObjectName(message string) error {
}
}
// ErrInvalidParts - invalid number of parts.
// ErrInvalidParts - Invalid number of parts.
func ErrInvalidParts(expectedParts, uploadedParts int) error {
msg := fmt.Sprintf("Unexpected number of parts found Want %d, Got %d", expectedParts, uploadedParts)
return ErrorResponse{
@ -228,11 +235,11 @@ func ErrInvalidParts(expectedParts, uploadedParts int) error {
}
}
// ErrInvalidObjectPrefix - invalid object prefix response is
// ErrInvalidObjectPrefix - Invalid object prefix response is
// similar to object name response.
var ErrInvalidObjectPrefix = ErrInvalidObjectName
// ErrInvalidArgument - invalid argument response.
// ErrInvalidArgument - Invalid argument response.
func ErrInvalidArgument(message string) error {
return ErrorResponse{
Code: "InvalidArgument",

2
Godeps/_workspace/src/github.com/minio/minio-go/api-fget-object.go → Godeps/_workspace/src/github.com/minio/minio-go/api-get-object-file.go generated vendored
View file

@ -22,7 +22,7 @@ import (
"path/filepath"
)
// FGetObject - get object to a file.
// FGetObject - download contents of an object to a local file.
func (c Client) FGetObject(bucketName, objectName, filePath string) error {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {

345
Godeps/_workspace/src/github.com/minio/minio-go/api-get.go generated vendored
View file

@ -28,15 +28,18 @@ import (
"time"
)
// GetBucketACL get the permissions on an existing bucket.
// GetBucketACL - Get the permissions on an existing bucket.
//
// Returned values are:
//
// private - owner gets full access.
// public-read - owner gets full access, others get read access.
// public-read-write - owner gets full access, others get full access too.
// authenticated-read - owner gets full access, authenticated users get read access.
// private - Owner gets full access.
// public-read - Owner gets full access, others get read access.
// public-read-write - Owner gets full access, others get full access
// too.
// authenticated-read - Owner gets full access, authenticated users
// get read access.
func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return "", err
}
@ -73,9 +76,10 @@ func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
return "", err
}
// We need to avoid following de-serialization check for Google Cloud Storage.
// On Google Cloud Storage "private" canned ACL's policy do not have grant list.
// Treat it as a valid case, check for all other vendors.
// We need to avoid following de-serialization check for Google
// Cloud Storage. On Google Cloud Storage "private" canned ACL's
// policy do not have grant list. Treat it as a valid case, check
// for all other vendors.
if !isGoogleEndpoint(c.endpointURL) {
if policy.AccessControlList.Grant == nil {
errorResponse := ErrorResponse{
@ -90,8 +94,8 @@ func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
}
}
// boolean cues to indentify right canned acls.
var publicRead, publicWrite bool
// Boolean cues to indentify right canned acls.
var publicRead, publicWrite, authenticatedRead bool
// Handle grants.
grants := policy.AccessControlList.Grant
@ -100,7 +104,8 @@ func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
continue
}
if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AuthenticatedUsers" && g.Permission == "READ" {
return BucketACL("authenticated-read"), nil
authenticatedRead = true
break
} else if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AllUsers" && g.Permission == "WRITE" {
publicWrite = true
} else if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AllUsers" && g.Permission == "READ" {
@ -108,15 +113,19 @@ func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
}
}
// public write and not enabled. return.
// Verify if acl is authenticated read.
if authenticatedRead {
return BucketACL("authenticated-read"), nil
}
// Verify if acl is private.
if !publicWrite && !publicRead {
return BucketACL("private"), nil
}
// public write not enabled but public read is. return.
// Verify if acl is public-read.
if !publicWrite && publicRead {
return BucketACL("public-read"), nil
}
// public read and public write are enabled return.
// Verify if acl is public-read-write.
if publicRead && publicWrite {
return BucketACL("public-read-write"), nil
}
@ -129,47 +138,30 @@ func (c Client) GetBucketACL(bucketName string) (BucketACL, error) {
}
}
// GetObject gets object content from specified bucket.
// You may also look at GetPartialObject.
func (c Client) GetObject(bucketName, objectName string) (io.ReadCloser, ObjectStat, error) {
// GetObject - returns an seekable, readable object.
func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return nil, ObjectStat{}, err
return nil, err
}
if err := isValidObjectName(objectName); err != nil {
return nil, ObjectStat{}, err
return nil, err
}
// get the whole object as a stream, no seek or resume supported for this.
return c.getObject(bucketName, objectName, 0, 0)
}
// ReadAtCloser readat closer interface.
type ReadAtCloser interface {
io.ReaderAt
io.Closer
}
// GetObjectPartial returns a io.ReadAt for reading sparse entries.
func (c Client) GetObjectPartial(bucketName, objectName string) (ReadAtCloser, ObjectStat, error) {
if err := isValidBucketName(bucketName); err != nil {
return nil, ObjectStat{}, err
}
if err := isValidObjectName(objectName); err != nil {
return nil, ObjectStat{}, err
}
// Send an explicit stat to get the actual object size.
objectStat, err := c.StatObject(bucketName, objectName)
// Send an explicit info to get the actual object size.
objectInfo, err := c.StatObject(bucketName, objectName)
if err != nil {
return nil, ObjectStat{}, err
return nil, err
}
// Create request channel.
reqCh := make(chan readAtRequest)
reqCh := make(chan readRequest)
// Create response channel.
resCh := make(chan readAtResponse)
resCh := make(chan readResponse)
// Create done channel.
doneCh := make(chan struct{})
// This routine feeds partial object data as and when the caller reads.
// This routine feeds partial object data as and when the caller
// reads.
go func() {
defer close(reqCh)
defer close(resCh)
@ -185,21 +177,21 @@ func (c Client) GetObjectPartial(bucketName, objectName string) (ReadAtCloser, O
// Get shortest length.
// NOTE: Last remaining bytes are usually smaller than
// req.Buffer size. Use that as the final length.
length := math.Min(float64(len(req.Buffer)), float64(objectStat.Size-req.Offset))
length := math.Min(float64(len(req.Buffer)), float64(objectInfo.Size-req.Offset))
httpReader, _, err := c.getObject(bucketName, objectName, req.Offset, int64(length))
if err != nil {
resCh <- readAtResponse{
resCh <- readResponse{
Error: err,
}
return
}
size, err := io.ReadFull(httpReader, req.Buffer)
if err == io.ErrUnexpectedEOF {
// If an EOF happens after reading some but not all the bytes
// ReadFull returns ErrUnexpectedEOF
// If an EOF happens after reading some but not
// all the bytes ReadFull returns ErrUnexpectedEOF
err = io.EOF
}
resCh <- readAtResponse{
resCh <- readResponse{
Size: int(size),
Error: err,
}
@ -207,78 +199,148 @@ func (c Client) GetObjectPartial(bucketName, objectName string) (ReadAtCloser, O
}
}()
// Return the readerAt backed by routine.
return newObjectReadAtCloser(reqCh, resCh, doneCh, objectStat.Size), objectStat, nil
return newObject(reqCh, resCh, doneCh, objectInfo), nil
}
// response message container to reply back for the request.
type readAtResponse struct {
// Read response message container to reply back for the request.
type readResponse struct {
Size int
Error error
}
// request message container to communicate with internal go-routine.
type readAtRequest struct {
// Read request message container to communicate with internal
// go-routine.
type readRequest struct {
Buffer []byte
Offset int64 // readAt offset.
}
// objectReadAtCloser container for io.ReadAtCloser.
type objectReadAtCloser struct {
// mutex.
// Object represents an open object. It implements Read, ReadAt,
// Seeker, Close for a HTTP stream.
type Object struct {
// Mutex.
mutex *sync.Mutex
// User allocated and defined.
reqCh chan<- readAtRequest
resCh <-chan readAtResponse
reqCh chan<- readRequest
resCh <-chan readResponse
doneCh chan<- struct{}
objectSize int64
currOffset int64
objectInfo ObjectInfo
// Previous error saved for future calls.
prevErr error
}
// newObjectReadAtCloser implements a io.ReadSeeker for a HTTP stream.
func newObjectReadAtCloser(reqCh chan<- readAtRequest, resCh <-chan readAtResponse, doneCh chan<- struct{}, objectSize int64) *objectReadAtCloser {
return &objectReadAtCloser{
mutex: new(sync.Mutex),
reqCh: reqCh,
resCh: resCh,
doneCh: doneCh,
objectSize: objectSize,
}
// Read reads up to len(p) bytes into p. It returns the number of
// bytes read (0 <= n <= len(p)) and any error encountered. Returns
// io.EOF upon end of file.
func (o *Object) Read(b []byte) (n int, err error) {
if o == nil {
return 0, ErrInvalidArgument("Object is nil")
}
// ReadAt reads len(b) bytes from the File starting at byte offset off.
// It returns the number of bytes read and the error, if any.
// ReadAt always returns a non-nil error when n < len(b).
// At end of file, that error is io.EOF.
func (r *objectReadAtCloser) ReadAt(b []byte, offset int64) (int, error) {
// Locking.
r.mutex.Lock()
defer r.mutex.Unlock()
o.mutex.Lock()
defer o.mutex.Unlock()
// if offset is negative and offset is greater than or equal to object size we return EOF.
if offset < 0 || offset >= r.objectSize {
// If current offset has reached Size limit, return EOF.
if o.currOffset >= o.objectInfo.Size {
return 0, io.EOF
}
// Previous prevErr is which was saved in previous operation.
if o.prevErr != nil {
return 0, o.prevErr
}
// Send current information over control channel to indicate we
// are ready.
reqMsg := readRequest{}
// Send the offset and pointer to the buffer over the channel.
reqMsg.Buffer = b
reqMsg.Offset = o.currOffset
// Send read request over the control channel.
o.reqCh <- reqMsg
// Get data over the response channel.
dataMsg := <-o.resCh
// Bytes read.
bytesRead := int64(dataMsg.Size)
// Update current offset.
o.currOffset += bytesRead
if dataMsg.Error == nil {
// If currOffset read is equal to objectSize
// We have reached end of file, we return io.EOF.
if o.currOffset >= o.objectInfo.Size {
return dataMsg.Size, io.EOF
}
return dataMsg.Size, nil
}
// Save any error.
o.prevErr = dataMsg.Error
return dataMsg.Size, dataMsg.Error
}
// Stat returns the ObjectInfo structure describing object.
func (o *Object) Stat() (ObjectInfo, error) {
if o == nil {
return ObjectInfo{}, ErrInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
if o.prevErr != nil {
return ObjectInfo{}, o.prevErr
}
return o.objectInfo, nil
}
// ReadAt reads len(b) bytes from the File starting at byte offset
// off. It returns the number of bytes read and the error, if any.
// ReadAt always returns a non-nil error when n < len(b). At end of
// file, that error is io.EOF.
func (o *Object) ReadAt(b []byte, offset int64) (n int, err error) {
if o == nil {
return 0, ErrInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// If offset is negative and offset is greater than or equal to
// object size we return EOF.
if offset < 0 || offset >= o.objectInfo.Size {
return 0, io.EOF
}
// prevErr is which was saved in previous operation.
if r.prevErr != nil {
return 0, r.prevErr
if o.prevErr != nil {
return 0, o.prevErr
}
// Send current information over control channel to indicate we are ready.
reqMsg := readAtRequest{}
// Send current information over control channel to indicate we
// are ready.
reqMsg := readRequest{}
// Send the current offset and bytes requested.
// Send the offset and pointer to the buffer over the channel.
reqMsg.Buffer = b
reqMsg.Offset = offset
// Send read request over the control channel.
r.reqCh <- reqMsg
o.reqCh <- reqMsg
// Get data over the response channel.
dataMsg := <-r.resCh
dataMsg := <-o.resCh
// Bytes read.
bytesRead := int64(dataMsg.Size)
@ -286,38 +348,109 @@ func (r *objectReadAtCloser) ReadAt(b []byte, offset int64) (int, error) {
if dataMsg.Error == nil {
// If offset+bytes read is equal to objectSize
// we have reached end of file, we return io.EOF.
if offset+bytesRead == r.objectSize {
if offset+bytesRead == o.objectInfo.Size {
return dataMsg.Size, io.EOF
}
return dataMsg.Size, nil
}
// Save any error.
r.prevErr = dataMsg.Error
o.prevErr = dataMsg.Error
return dataMsg.Size, dataMsg.Error
}
// Closer is the interface that wraps the basic Close method.
// Seek sets the offset for the next Read or Write 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.
//
// The behavior of Close after the first call returns error for
// subsequent Close() calls.
func (r *objectReadAtCloser) Close() (err error) {
// Seeking to a negative offset is an error. Seeking to any positive
// offset is legal, subsequent io operations succeed until the
// underlying object is not closed.
func (o *Object) Seek(offset int64, whence int) (n int64, err error) {
if o == nil {
return 0, ErrInvalidArgument("Object is nil")
}
// Locking.
r.mutex.Lock()
defer r.mutex.Unlock()
o.mutex.Lock()
defer o.mutex.Unlock()
if o.prevErr != nil {
// At EOF seeking is legal, for any other errors we return.
if o.prevErr != io.EOF {
return 0, o.prevErr
}
}
// Negative offset is valid for whence of '2'.
if offset < 0 && whence != 2 {
return 0, ErrInvalidArgument(fmt.Sprintf("Object: negative position not allowed for %d.", whence))
}
switch whence {
default:
return 0, ErrInvalidArgument(fmt.Sprintf("Object: invalid whence %d", whence))
case 0:
if offset > o.objectInfo.Size {
return 0, io.EOF
}
o.currOffset = offset
case 1:
if o.currOffset+offset > o.objectInfo.Size {
return 0, io.EOF
}
o.currOffset += offset
case 2:
// Seeking to positive offset is valid for whence '2', but
// since we are backing a Reader we have reached 'EOF' if
// offset is positive.
if offset > 0 {
return 0, io.EOF
}
// Seeking to negative position not allowed for whence.
if o.objectInfo.Size+offset < 0 {
return 0, ErrInvalidArgument(fmt.Sprintf("Object: Seeking at negative offset not allowed for %d", whence))
}
o.currOffset += offset
}
// Return the effective offset.
return o.currOffset, nil
}
// Close - The behavior of Close after the first call returns error
// for subsequent Close() calls.
func (o *Object) Close() (err error) {
if o == nil {
return ErrInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// prevErr is which was saved in previous operation.
if r.prevErr != nil {
return r.prevErr
if o.prevErr != nil {
return o.prevErr
}
// Close successfully.
close(r.doneCh)
close(o.doneCh)
// Save this for any subsequent frivolous reads.
errMsg := "objectReadAtCloser: is already closed. Bad file descriptor."
r.prevErr = errors.New(errMsg)
return
errMsg := "Object: Is already closed. Bad file descriptor."
o.prevErr = errors.New(errMsg)
return nil
}
// newObject instantiates a new *minio.Object*
func newObject(reqCh chan<- readRequest, resCh <-chan readResponse, doneCh chan<- struct{}, objectInfo ObjectInfo) *Object {
return &Object{
mutex: &sync.Mutex{},
reqCh: reqCh,
resCh: resCh,
doneCh: doneCh,
objectInfo: objectInfo,
}
}
// getObject - retrieve object from Object Storage.
@ -327,13 +460,13 @@ func (r *objectReadAtCloser) Close() (err error) {
//
// For more information about the HTTP Range header.
// go to http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.
func (c Client) getObject(bucketName, objectName string, offset, length int64) (io.ReadCloser, ObjectStat, error) {
func (c Client) getObject(bucketName, objectName string, offset, length int64) (io.ReadCloser, ObjectInfo, error) {
// Validate input arguments.
if err := isValidBucketName(bucketName); err != nil {
return nil, ObjectStat{}, err
return nil, ObjectInfo{}, err
}
if err := isValidObjectName(objectName); err != nil {
return nil, ObjectStat{}, err
return nil, ObjectInfo{}, err
}
customHeader := make(http.Header)
@ -353,16 +486,16 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
customHeader: customHeader,
})
if err != nil {
return nil, ObjectStat{}, err
return nil, ObjectInfo{}, err
}
// Execute the request.
resp, err := c.do(req)
if err != nil {
return nil, ObjectStat{}, err
return nil, ObjectInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusPartialContent {
return nil, ObjectStat{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
return nil, ObjectInfo{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
@ -374,7 +507,7 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
date, err := time.Parse(http.TimeFormat, resp.Header.Get("Last-Modified"))
if err != nil {
msg := "Last-Modified time format not recognized. " + reportIssue
return nil, ObjectStat{}, ErrorResponse{
return nil, ObjectInfo{}, ErrorResponse{
Code: "InternalError",
Message: msg,
RequestID: resp.Header.Get("x-amz-request-id"),
@ -387,7 +520,7 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
if contentType == "" {
contentType = "application/octet-stream"
}
var objectStat ObjectStat
var objectStat ObjectInfo
objectStat.ETag = md5sum
objectStat.Key = objectName
objectStat.Size = resp.ContentLength

95
Godeps/_workspace/src/github.com/minio/minio-go/api-list.go generated vendored
View file

@ -33,7 +33,7 @@ import (
// fmt.Println(message)
// }
//
func (c Client) ListBuckets() ([]BucketStat, error) {
func (c Client) ListBuckets() ([]BucketInfo, error) {
// Instantiate a new request.
req, err := c.newRequest("GET", requestMetadata{})
if err != nil {
@ -64,19 +64,25 @@ func (c Client) ListBuckets() ([]BucketStat, error) {
// the specified bucket. If recursion is enabled it would list
// all subdirectories and all its contents.
//
// Your input paramters are just bucketName, objectPrefix and recursive. If you
// enable recursive as 'true' this function will return back all the
// objects in a given bucket name and object prefix.
// Your input paramters are just bucketName, objectPrefix, recursive
// and a done channel for pro-actively closing the internal go
// routine. If you enable recursive as 'true' this function will
// return back all the objects in a given bucket name and object
// prefix.
//
// api := client.New(....)
// // Create a done channel.
// doneCh := make(chan struct{})
// defer close(doneCh)
// // Recurively list all objects in 'mytestbucket'
// recursive := true
// for message := range api.ListObjects("mytestbucket", "starthere", recursive) {
// for message := range api.ListObjects("mytestbucket", "starthere", recursive, doneCh) {
// fmt.Println(message)
// }
//
func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectStat {
func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectInfo {
// Allocate new list objects channel.
objectStatCh := make(chan ObjectStat, 1000)
objectStatCh := make(chan ObjectInfo, 1000)
// Default listing is delimited at "/"
delimiter := "/"
if recursive {
@ -86,7 +92,7 @@ func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, don
// Validate bucket name.
if err := isValidBucketName(bucketName); err != nil {
defer close(objectStatCh)
objectStatCh <- ObjectStat{
objectStatCh <- ObjectInfo{
Err: err,
}
return objectStatCh
@ -94,14 +100,14 @@ func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, don
// Validate incoming object prefix.
if err := isValidObjectPrefix(objectPrefix); err != nil {
defer close(objectStatCh)
objectStatCh <- ObjectStat{
objectStatCh <- ObjectInfo{
Err: err,
}
return objectStatCh
}
// Initiate list objects goroutine here.
go func(objectStatCh chan<- ObjectStat) {
go func(objectStatCh chan<- ObjectInfo) {
defer close(objectStatCh)
// Save marker for next request.
var marker string
@ -109,7 +115,7 @@ func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, don
// Get list of objects a maximum of 1000 per request.
result, err := c.listObjectsQuery(bucketName, objectPrefix, marker, delimiter, 1000)
if err != nil {
objectStatCh <- ObjectStat{
objectStatCh <- ObjectInfo{
Err: err,
}
return
@ -131,7 +137,7 @@ func (c Client) ListObjects(bucketName, objectPrefix string, recursive bool, don
// Send all common prefixes if any.
// NOTE: prefixes are only present if the request is delimited.
for _, obj := range result.CommonPrefixes {
object := ObjectStat{}
object := ObjectInfo{}
object.Key = obj.Prefix
object.Size = 0
select {
@ -181,11 +187,22 @@ func (c Client) listObjectsQuery(bucketName, objectPrefix, objectMarker, delimit
// using them in http request.
urlValues := make(url.Values)
// Set object prefix.
if objectPrefix != "" {
urlValues.Set("prefix", urlEncodePath(objectPrefix))
}
// Set object marker.
if objectMarker != "" {
urlValues.Set("marker", urlEncodePath(objectMarker))
}
// Set delimiter.
if delimiter != "" {
urlValues.Set("delimiter", delimiter)
}
// maxkeys should default to 1000 or less.
if maxkeys == 0 || maxkeys > 1000 {
maxkeys = 1000
}
// Set max keys.
urlValues.Set("max-keys", fmt.Sprintf("%d", maxkeys))
@ -223,26 +240,31 @@ func (c Client) listObjectsQuery(bucketName, objectPrefix, objectMarker, delimit
// objectPrefix from the specified bucket. If recursion is enabled
// it would list all subdirectories and all its contents.
//
// Your input paramters are just bucketName, objectPrefix and recursive.
// Your input paramters are just bucketName, objectPrefix, recursive
// and a done channel to proactively close the internal go routine.
// If you enable recursive as 'true' this function will return back all
// the multipart objects in a given bucket name.
//
// api := client.New(....)
// // Create a done channel.
// doneCh := make(chan struct{})
// defer close(doneCh)
// // Recurively list all objects in 'mytestbucket'
// recursive := true
// for message := range api.ListIncompleteUploads("mytestbucket", "starthere", recursive) {
// fmt.Println(message)
// }
//
func (c Client) ListIncompleteUploads(bucketName, objectPrefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectMultipartStat {
func (c Client) ListIncompleteUploads(bucketName, objectPrefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectMultipartInfo {
// Turn on size aggregation of individual parts.
isAggregateSize := true
return c.listIncompleteUploads(bucketName, objectPrefix, recursive, isAggregateSize, doneCh)
}
// listIncompleteUploads lists all incomplete uploads.
func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive, aggregateSize bool, doneCh <-chan struct{}) <-chan ObjectMultipartStat {
func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive, aggregateSize bool, doneCh <-chan struct{}) <-chan ObjectMultipartInfo {
// Allocate channel for multipart uploads.
objectMultipartStatCh := make(chan ObjectMultipartStat, 1000)
objectMultipartStatCh := make(chan ObjectMultipartInfo, 1000)
// Delimiter is set to "/" by default.
delimiter := "/"
if recursive {
@ -252,7 +274,7 @@ func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive
// Validate bucket name.
if err := isValidBucketName(bucketName); err != nil {
defer close(objectMultipartStatCh)
objectMultipartStatCh <- ObjectMultipartStat{
objectMultipartStatCh <- ObjectMultipartInfo{
Err: err,
}
return objectMultipartStatCh
@ -260,12 +282,12 @@ func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive
// Validate incoming object prefix.
if err := isValidObjectPrefix(objectPrefix); err != nil {
defer close(objectMultipartStatCh)
objectMultipartStatCh <- ObjectMultipartStat{
objectMultipartStatCh <- ObjectMultipartInfo{
Err: err,
}
return objectMultipartStatCh
}
go func(objectMultipartStatCh chan<- ObjectMultipartStat) {
go func(objectMultipartStatCh chan<- ObjectMultipartInfo) {
defer close(objectMultipartStatCh)
// object and upload ID marker for future requests.
var objectMarker string
@ -274,7 +296,7 @@ func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive
// list all multipart uploads.
result, err := c.listMultipartUploadsQuery(bucketName, objectMarker, uploadIDMarker, objectPrefix, delimiter, 1000)
if err != nil {
objectMultipartStatCh <- ObjectMultipartStat{
objectMultipartStatCh <- ObjectMultipartInfo{
Err: err,
}
return
@ -289,7 +311,7 @@ func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive
// Get total multipart size.
obj.Size, err = c.getTotalMultipartSize(bucketName, obj.Key, obj.UploadID)
if err != nil {
objectMultipartStatCh <- ObjectMultipartStat{
objectMultipartStatCh <- ObjectMultipartInfo{
Err: err,
}
}
@ -305,7 +327,7 @@ func (c Client) listIncompleteUploads(bucketName, objectPrefix string, recursive
// Send all common prefixes if any.
// NOTE: prefixes are only present if the request is delimited.
for _, obj := range result.CommonPrefixes {
object := ObjectMultipartStat{}
object := ObjectMultipartInfo{}
object.Key = obj.Prefix
object.Size = 0
select {
@ -343,13 +365,26 @@ func (c Client) listMultipartUploadsQuery(bucketName, keyMarker, uploadIDMarker,
// Set uploads.
urlValues.Set("uploads", "")
// Set object key marker.
if keyMarker != "" {
urlValues.Set("key-marker", urlEncodePath(keyMarker))
}
// Set upload id marker.
if uploadIDMarker != "" {
urlValues.Set("upload-id-marker", uploadIDMarker)
}
// Set prefix marker.
if prefix != "" {
urlValues.Set("prefix", urlEncodePath(prefix))
}
// Set delimiter.
if delimiter != "" {
urlValues.Set("delimiter", delimiter)
}
// maxUploads should be 1000 or less.
if maxUploads == 0 || maxUploads > 1000 {
maxUploads = 1000
}
// Set max-uploads.
urlValues.Set("max-uploads", fmt.Sprintf("%d", maxUploads))
@ -445,12 +480,15 @@ func (c Client) getTotalMultipartSize(bucketName, objectName, uploadID string) (
}
// listObjectPartsQuery (List Parts query)
// - lists some or all (up to 1000) parts that have been uploaded for a specific multipart upload
// - lists some or all (up to 1000) parts that have been uploaded
// for a specific multipart upload
//
// You can use the request parameters as selection criteria to return a subset of the uploads in a bucket.
// request paramters :-
// You can use the request parameters as selection criteria to return
// a subset of the uploads in a bucket, request paramters :-
// ---------
// ?part-number-marker - Specifies the part after which listing should begin.
// ?part-number-marker - Specifies the part after which listing should
// begin.
// ?max-parts - Maximum parts to be listed per request.
func (c Client) listObjectPartsQuery(bucketName, objectName, uploadID string, partNumberMarker, maxParts int) (listObjectPartsResult, error) {
// Get resources properly escaped and lined up before using them in http request.
urlValues := make(url.Values)
@ -458,6 +496,11 @@ func (c Client) listObjectPartsQuery(bucketName, objectName, uploadID string, pa
urlValues.Set("part-number-marker", fmt.Sprintf("%d", partNumberMarker))
// Set upload id.
urlValues.Set("uploadId", uploadID)
// maxParts should be 1000 or less.
if maxParts == 0 || maxParts > 1000 {
maxParts = 1000
}
// Set max parts.
urlValues.Set("max-parts", fmt.Sprintf("%d", maxParts))

11
Godeps/_workspace/src/github.com/minio/minio-go/api-presigned.go generated vendored
View file

@ -21,7 +21,7 @@ import (
"time"
)
// PresignedGetObject returns a presigned URL to access an object without credentials.
// PresignedGetObject - Returns a presigned URL to access an object without credentials.
// Expires maximum is 7days - ie. 604800 and minimum is 1.
func (c Client) PresignedGetObject(bucketName, objectName string, expires time.Duration) (string, error) {
// Input validation.
@ -50,7 +50,7 @@ func (c Client) PresignedGetObject(bucketName, objectName string, expires time.D
return req.URL.String(), nil
}
// PresignedPutObject returns a presigned URL to upload an object without credentials.
// PresignedPutObject - Returns a presigned URL to upload an object without credentials.
// Expires maximum is 7days - ie. 604800 and minimum is 1.
func (c Client) PresignedPutObject(bucketName, objectName string, expires time.Duration) (string, error) {
// Input validation.
@ -79,7 +79,7 @@ func (c Client) PresignedPutObject(bucketName, objectName string, expires time.D
return req.URL.String(), nil
}
// PresignedPostPolicy returns POST form data to upload an object at a location.
// PresignedPostPolicy - Returns POST form data to upload an object at a location.
func (c Client) PresignedPostPolicy(p *PostPolicy) (map[string]string, error) {
// Validate input arguments.
if p.expiration.IsZero() {
@ -93,7 +93,7 @@ func (c Client) PresignedPostPolicy(p *PostPolicy) (map[string]string, error) {
}
bucketName := p.formData["bucket"]
// Fetch the location.
// Fetch the bucket location.
location, err := c.getBucketLocation(bucketName)
if err != nil {
return nil, err
@ -101,6 +101,7 @@ func (c Client) PresignedPostPolicy(p *PostPolicy) (map[string]string, error) {
// Keep time.
t := time.Now().UTC()
// For signature version '2' handle here.
if c.signature.isV2() {
policyBase64 := p.base64()
p.formData["policy"] = policyBase64
@ -135,7 +136,7 @@ func (c Client) PresignedPostPolicy(p *PostPolicy) (map[string]string, error) {
condition: "$x-amz-credential",
value: credential,
})
// get base64 encoded policy.
// Get base64 encoded policy.
policyBase64 := p.base64()
// Fill in the form data.
p.formData["policy"] = policyBase64

4
Godeps/_workspace/src/github.com/minio/minio-go/api-put-bucket.go generated vendored
View file

@ -97,7 +97,7 @@ func (c Client) makeBucketRequest(bucketName string, acl BucketACL, location str
}
// Set get bucket location always as path style.
targetURL := c.endpointURL
targetURL := *c.endpointURL
if bucketName != "" {
// If endpoint supports virtual host style use that always.
// Currently only S3 and Google Cloud Storage would support this.
@ -132,7 +132,7 @@ func (c Client) makeBucketRequest(bucketName string, acl BucketACL, location str
// If location is not 'us-east-1' create bucket location config.
if location != "us-east-1" && location != "" {
createBucketConfig := new(createBucketConfiguration)
createBucketConfig := createBucketConfiguration{}
createBucketConfig.Location = location
var createBucketConfigBytes []byte
createBucketConfigBytes, err = xml.Marshal(createBucketConfig)

227
Godeps/_workspace/src/github.com/minio/minio-go/api-fput-object.go → Godeps/_workspace/src/github.com/minio/minio-go/api-put-object-file.go generated vendored
View file

@ -28,7 +28,8 @@ import (
"sort"
)
// getUploadID if already present for object name or initiate a request to fetch a new upload id.
// getUploadID - fetch upload id if already present for an object name
// or initiate a new request to fetch a new upload id.
func (c Client) getUploadID(bucketName, objectName, contentType string) (string, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
@ -60,84 +61,16 @@ func (c Client) getUploadID(bucketName, objectName, contentType string) (string,
return uploadID, nil
}
// FPutObject - put object a file.
func (c Client) FPutObject(bucketName, objectName, filePath, contentType string) (int64, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// Open the referenced file.
fileData, err := os.Open(filePath)
// If any error fail quickly here.
if err != nil {
return 0, err
}
defer fileData.Close()
// Save the file stat.
fileStat, err := fileData.Stat()
if err != nil {
return 0, err
}
// Save the file size.
fileSize := fileStat.Size()
if fileSize > int64(maxMultipartPutObjectSize) {
return 0, ErrInvalidArgument("Input file size is bigger than the supported maximum of 5TiB.")
}
// NOTE: Google Cloud Storage multipart Put is not compatible with Amazon S3 APIs.
// Current implementation will only upload a maximum of 5GiB to Google Cloud Storage servers.
if isGoogleEndpoint(c.endpointURL) {
if fileSize > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("Invalid Content-Length %d for file uploads to Google Cloud Storage.", fileSize),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for Google Cloud Storage. Uploads upto 5GiB in size.
n, err := c.putNoChecksum(bucketName, objectName, fileData, fileSize, contentType)
return n, err
}
// NOTE: S3 doesn't allow anonymous multipart requests.
if isAmazonEndpoint(c.endpointURL) && c.anonymous {
if fileSize > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("For anonymous requests Content-Length cannot be %d.", fileSize),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for anonymous requests to Amazon S3. Uploads upto 5GiB in size.
n, err := c.putAnonymous(bucketName, objectName, fileData, fileSize, contentType)
return n, err
}
// Small object upload is initiated for uploads for input data size smaller than 5MiB.
if fileSize < minimumPartSize {
return c.putSmallObject(bucketName, objectName, fileData, fileSize, contentType)
}
return c.fputLargeObject(bucketName, objectName, fileData, fileSize, contentType)
}
// computeHash - calculates MD5 and Sha256 for an input read Seeker.
// computeHash - Calculates MD5 and SHA256 for an input read Seeker.
func (c Client) computeHash(reader io.ReadSeeker) (md5Sum, sha256Sum []byte, size int64, err error) {
// MD5 and Sha256 hasher.
var hashMD5, hashSha256 hash.Hash
// MD5 and Sha256 hasher.
// MD5 and SHA256 hasher.
var hashMD5, hashSHA256 hash.Hash
// MD5 and SHA256 hasher.
hashMD5 = md5.New()
hashWriter := io.MultiWriter(hashMD5)
if c.signature.isV4() {
hashSha256 = sha256.New()
hashWriter = io.MultiWriter(hashMD5, hashSha256)
hashSHA256 = sha256.New()
hashWriter = io.MultiWriter(hashMD5, hashSHA256)
}
size, err = io.Copy(hashWriter, reader)
@ -153,12 +86,13 @@ func (c Client) computeHash(reader io.ReadSeeker) (md5Sum, sha256Sum []byte, siz
// Finalize md5shum and sha256 sum.
md5Sum = hashMD5.Sum(nil)
if c.signature.isV4() {
sha256Sum = hashSha256.Sum(nil)
sha256Sum = hashSHA256.Sum(nil)
}
return md5Sum, sha256Sum, size, nil
}
func (c Client) fputLargeObject(bucketName, objectName string, fileData *os.File, fileSize int64, contentType string) (int64, error) {
// FPutObject - Create an object in a bucket, with contents from file at filePath.
func (c Client) FPutObject(bucketName, objectName, filePath, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
@ -167,27 +101,119 @@ func (c Client) fputLargeObject(bucketName, objectName string, fileData *os.File
return 0, err
}
// getUploadID for an object, initiates a new multipart request
// Open the referenced file.
fileReader, err := os.Open(filePath)
// If any error fail quickly here.
if err != nil {
return 0, err
}
defer fileReader.Close()
// Save the file stat.
fileStat, err := fileReader.Stat()
if err != nil {
return 0, err
}
// Save the file size.
fileSize := fileStat.Size()
// Check for largest object size allowed.
if fileSize > int64(maxMultipartPutObjectSize) {
return 0, ErrEntityTooLarge(fileSize, bucketName, objectName)
}
// NOTE: Google Cloud Storage multipart Put is not compatible with Amazon S3 APIs.
// Current implementation will only upload a maximum of 5GiB to Google Cloud Storage servers.
if isGoogleEndpoint(c.endpointURL) {
if fileSize > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("Invalid Content-Length %d for file uploads to Google Cloud Storage.", fileSize),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for Google Cloud Storage. Uploads upto 5GiB in size.
return c.putObjectNoChecksum(bucketName, objectName, fileReader, fileSize, contentType)
}
// NOTE: S3 doesn't allow anonymous multipart requests.
if isAmazonEndpoint(c.endpointURL) && c.anonymous {
if fileSize > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("For anonymous requests Content-Length cannot be %d.", fileSize),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for anonymous requests to Amazon S3. Uploads upto 5GiB in size.
return c.putObjectNoChecksum(bucketName, objectName, fileReader, fileSize, contentType)
}
// Small object upload is initiated for uploads for input data size smaller than 5MiB.
if fileSize < minimumPartSize {
return c.putObjectSingle(bucketName, objectName, fileReader, fileSize, contentType)
}
// Upload all large objects as multipart.
n, err = c.putObjectMultipartFromFile(bucketName, objectName, fileReader, fileSize, contentType)
if err != nil {
errResp := ToErrorResponse(err)
// Verify if multipart functionality is not available, if not
// fall back to single PutObject operation.
if errResp.Code == "NotImplemented" {
// If size of file is greater than '5GiB' fail.
if fileSize > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(fileSize, bucketName, objectName)
}
// Fall back to uploading as single PutObject operation.
return c.putObjectSingle(bucketName, objectName, fileReader, fileSize, contentType)
}
return n, err
}
return n, nil
}
// putObjectMultipartFromFile - Creates object from contents of *os.File
//
// NOTE: This function is meant to be used for readers with local
// file as in *os.File. This function resumes by skipping all the
// necessary parts which were already uploaded by verifying them
// against MD5SUM of each individual parts. This function also
// effectively utilizes file system capabilities of reading from
// specific sections and not having to create temporary files.
func (c Client) putObjectMultipartFromFile(bucketName, objectName string, fileReader *os.File, fileSize int64, contentType string) (int64, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// Get upload id for an object, initiates a new multipart request
// if it cannot find any previously partially uploaded object.
uploadID, err := c.getUploadID(bucketName, objectName, contentType)
if err != nil {
return 0, err
}
// total data read and written to server. should be equal to 'size' at the end of the call.
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var completeMultipartUpload completeMultipartUpload
// Fetch previously upload parts and save the total size.
// Fetch previously upload parts.
partsInfo, err := c.listObjectParts(bucketName, objectName, uploadID)
if err != nil {
return 0, err
}
// Previous maximum part size
var prevMaxPartSize int64
// Loop through all parts and calculate totalUploadedSize.
// Loop through all parts and fetch prevMaxPartSize.
for _, partInfo := range partsInfo {
// Choose the maximum part size.
if partInfo.Size >= prevMaxPartSize {
@ -197,7 +223,7 @@ func (c Client) fputLargeObject(bucketName, objectName string, fileData *os.File
// Calculate the optimal part size for a given file size.
partSize := optimalPartSize(fileSize)
// If prevMaxPartSize is set use that.
// Use prevMaxPartSize if available.
if prevMaxPartSize != 0 {
partSize = prevMaxPartSize
}
@ -205,52 +231,39 @@ func (c Client) fputLargeObject(bucketName, objectName string, fileData *os.File
// Part number always starts with '0'.
partNumber := 0
// Loop through until EOF.
// Upload each part until fileSize.
for totalUploadedSize < fileSize {
// Increment part number.
partNumber++
// Get a section reader on a particular offset.
sectionReader := io.NewSectionReader(fileData, totalUploadedSize, partSize)
sectionReader := io.NewSectionReader(fileReader, totalUploadedSize, partSize)
// Calculates MD5 and Sha256 sum for a section reader.
// Calculates MD5 and SHA256 sum for a section reader.
md5Sum, sha256Sum, size, err := c.computeHash(sectionReader)
if err != nil {
return 0, err
}
// Save all the part metadata.
prtData := partData{
ReadCloser: ioutil.NopCloser(sectionReader),
Size: size,
MD5Sum: md5Sum,
Sha256Sum: sha256Sum,
Number: partNumber, // Part number to be uploaded.
}
// If part not uploaded proceed to upload.
// Verify if part was not uploaded.
if !isPartUploaded(objectPart{
ETag: hex.EncodeToString(prtData.MD5Sum),
PartNumber: prtData.Number,
ETag: hex.EncodeToString(md5Sum),
PartNumber: partNumber,
}, partsInfo) {
// Upload the part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, prtData)
// Proceed to upload the part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, ioutil.NopCloser(sectionReader), partNumber, md5Sum, sha256Sum, size)
if err != nil {
prtData.ReadCloser.Close()
return totalUploadedSize, err
}
// Save successfully uploaded part metadata.
partsInfo[prtData.Number] = objPart
partsInfo[partNumber] = objPart
}
// Close the read closer for temporary file.
prtData.ReadCloser.Close()
// Save successfully uploaded size.
totalUploadedSize += prtData.Size
totalUploadedSize += size
}
// if totalUploadedSize is different than the file 'size'. Do not complete the request throw an error.
// Verify if we uploaded all data.
if totalUploadedSize != fileSize {
return totalUploadedSize, ErrUnexpectedEOF(totalUploadedSize, fileSize, bucketName, objectName)
}
@ -263,7 +276,7 @@ func (c Client) fputLargeObject(bucketName, objectName string, fileData *os.File
completeMultipartUpload.Parts = append(completeMultipartUpload.Parts, complPart)
}
// If partNumber is different than total list of parts, error out.
// Verify if partNumber is different than total list of parts.
if partNumber != len(completeMultipartUpload.Parts) {
return totalUploadedSize, ErrInvalidParts(partNumber, len(completeMultipartUpload.Parts))
}

421
Godeps/_workspace/src/github.com/minio/minio-go/api-put-object-multipart.go generated vendored Normal file
View file

@ -0,0 +1,421 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"crypto/md5"
"crypto/sha256"
"encoding/hex"
"encoding/xml"
"hash"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"sort"
"strconv"
"strings"
)
// Verify if reader is *os.File
func isFile(reader io.Reader) (ok bool) {
_, ok = reader.(*os.File)
return
}
// Verify if reader is *minio.Object
func isObject(reader io.Reader) (ok bool) {
_, ok = reader.(*Object)
return
}
// Verify if reader is a generic ReaderAt
func isReadAt(reader io.Reader) (ok bool) {
_, ok = reader.(io.ReaderAt)
return
}
// hashCopyN - Calculates Md5sum and SHA256sum for upto partSize amount of bytes.
func (c Client) hashCopyN(writer io.ReadWriteSeeker, reader io.Reader, partSize int64) (md5Sum, sha256Sum []byte, size int64, err error) {
// MD5 and SHA256 hasher.
var hashMD5, hashSHA256 hash.Hash
// MD5 and SHA256 hasher.
hashMD5 = md5.New()
hashWriter := io.MultiWriter(writer, hashMD5)
if c.signature.isV4() {
hashSHA256 = sha256.New()
hashWriter = io.MultiWriter(writer, hashMD5, hashSHA256)
}
// Copies to input at writer.
size, err = io.CopyN(hashWriter, reader, partSize)
if err != nil {
// If not EOF return error right here.
if err != io.EOF {
return nil, nil, 0, err
}
}
// Seek back to beginning of input, any error fail right here.
if _, err := writer.Seek(0, 0); err != nil {
return nil, nil, 0, err
}
// Finalize md5shum and sha256 sum.
md5Sum = hashMD5.Sum(nil)
if c.signature.isV4() {
sha256Sum = hashSHA256.Sum(nil)
}
return md5Sum, sha256Sum, size, err
}
// Comprehensive put object operation involving multipart resumable uploads.
//
// Following code handles these types of readers.
//
// - *os.File
// - *minio.Object
// - Any reader which has a method 'ReadAt()'
//
// If we exhaust all the known types, code proceeds to use stream as
// is where each part is re-downloaded, checksummed and verified
// before upload.
func (c Client) putObjectMultipart(bucketName, objectName string, reader io.Reader, size int64, contentType string) (n int64, err error) {
if size > 0 && size >= minimumPartSize {
// Verify if reader is *os.File, then use file system functionalities.
if isFile(reader) {
return c.putObjectMultipartFromFile(bucketName, objectName, reader.(*os.File), size, contentType)
}
// Verify if reader is *minio.Object or io.ReaderAt.
// NOTE: Verification of object is kept for a specific purpose
// while it is going to be duck typed similar to io.ReaderAt.
// It is to indicate that *minio.Object implements io.ReaderAt.
// and such a functionality is used in the subsequent code
// path.
if isObject(reader) || isReadAt(reader) {
return c.putObjectMultipartFromReadAt(bucketName, objectName, reader.(io.ReaderAt), size, contentType)
}
}
// For any other data size and reader type we do generic multipart
// approach by staging data in temporary files and uploading them.
return c.putObjectMultipartStream(bucketName, objectName, reader, size, contentType)
}
// putObjectStream uploads files bigger than 5MiB, and also supports
// special case where size is unknown i.e '-1'.
func (c Client) putObjectMultipartStream(bucketName, objectName string, reader io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// getUploadID for an object, initiates a new multipart request
// if it cannot find any previously partially uploaded object.
uploadID, err := c.getUploadID(bucketName, objectName, contentType)
if err != nil {
return 0, err
}
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var completeMultipartUpload completeMultipartUpload
// Fetch previously upload parts.
partsInfo, err := c.listObjectParts(bucketName, objectName, uploadID)
if err != nil {
return 0, err
}
// Previous maximum part size
var prevMaxPartSize int64
// Loop through all parts and calculate totalUploadedSize.
for _, partInfo := range partsInfo {
// Choose the maximum part size.
if partInfo.Size >= prevMaxPartSize {
prevMaxPartSize = partInfo.Size
}
}
// Calculate the optimal part size for a given size.
partSize := optimalPartSize(size)
// Use prevMaxPartSize if available.
if prevMaxPartSize != 0 {
partSize = prevMaxPartSize
}
// Part number always starts with '0'.
partNumber := 0
// Upload each part until EOF.
for {
// Increment part number.
partNumber++
// Initialize a new temporary file.
tmpFile, err := newTempFile("multiparts$-putobject-stream")
if err != nil {
return 0, err
}
// Calculates MD5 and SHA256 sum while copying partSize bytes into tmpFile.
md5Sum, sha256Sum, size, rErr := c.hashCopyN(tmpFile, reader, partSize)
if rErr != nil {
if rErr != io.EOF {
return 0, rErr
}
}
// Verify if part was not uploaded.
if !isPartUploaded(objectPart{
ETag: hex.EncodeToString(md5Sum),
PartNumber: partNumber,
}, partsInfo) {
// Proceed to upload the part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, tmpFile, partNumber, md5Sum, sha256Sum, size)
if err != nil {
// Close the temporary file upon any error.
tmpFile.Close()
return 0, err
}
// Save successfully uploaded part metadata.
partsInfo[partNumber] = objPart
}
// Close the temporary file.
tmpFile.Close()
// If read error was an EOF, break out of the loop.
if rErr == io.EOF {
break
}
}
// Verify if we uploaded all the data.
if size > 0 {
if totalUploadedSize != size {
return totalUploadedSize, ErrUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
}
// Loop over uploaded parts to save them in a Parts array before completing the multipart request.
for _, part := range partsInfo {
var complPart completePart
complPart.ETag = part.ETag
complPart.PartNumber = part.PartNumber
completeMultipartUpload.Parts = append(completeMultipartUpload.Parts, complPart)
// Save successfully uploaded size.
totalUploadedSize += part.Size
}
// Verify if partNumber is different than total list of parts.
if partNumber != len(completeMultipartUpload.Parts) {
return totalUploadedSize, ErrInvalidParts(partNumber, len(completeMultipartUpload.Parts))
}
// Sort all completed parts.
sort.Sort(completedParts(completeMultipartUpload.Parts))
_, err = c.completeMultipartUpload(bucketName, objectName, uploadID, completeMultipartUpload)
if err != nil {
return totalUploadedSize, err
}
// Return final size.
return totalUploadedSize, nil
}
// initiateMultipartUpload - Initiates a multipart upload and returns an upload ID.
func (c Client) initiateMultipartUpload(bucketName, objectName, contentType string) (initiateMultipartUploadResult, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return initiateMultipartUploadResult{}, err
}
if err := isValidObjectName(objectName); err != nil {
return initiateMultipartUploadResult{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploads", "")
if contentType == "" {
contentType = "application/octet-stream"
}
// Set ContentType header.
customHeader := make(http.Header)
customHeader.Set("Content-Type", contentType)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: customHeader,
}
// Instantiate the request.
req, err := c.newRequest("POST", reqMetadata)
if err != nil {
return initiateMultipartUploadResult{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return initiateMultipartUploadResult{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return initiateMultipartUploadResult{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// Decode xml for new multipart upload.
initiateMultipartUploadResult := initiateMultipartUploadResult{}
err = xmlDecoder(resp.Body, &initiateMultipartUploadResult)
if err != nil {
return initiateMultipartUploadResult, err
}
return initiateMultipartUploadResult, nil
}
// uploadPart - Uploads a part in a multipart upload.
func (c Client) uploadPart(bucketName, objectName, uploadID string, reader io.ReadCloser, partNumber int, md5Sum, sha256Sum []byte, size int64) (objectPart, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return objectPart{}, err
}
if err := isValidObjectName(objectName); err != nil {
return objectPart{}, err
}
if size > maxPartSize {
return objectPart{}, ErrEntityTooLarge(size, bucketName, objectName)
}
if size <= -1 {
return objectPart{}, ErrEntityTooSmall(size, bucketName, objectName)
}
if partNumber <= 0 {
return objectPart{}, ErrInvalidArgument("Part number cannot be negative or equal to zero.")
}
if uploadID == "" {
return objectPart{}, ErrInvalidArgument("UploadID cannot be empty.")
}
// Get resources properly escaped and lined up before using them in http request.
urlValues := make(url.Values)
// Set part number.
urlValues.Set("partNumber", strconv.Itoa(partNumber))
// Set upload id.
urlValues.Set("uploadId", uploadID)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: reader,
contentLength: size,
contentMD5Bytes: md5Sum,
contentSHA256Bytes: sha256Sum,
}
// Instantiate a request.
req, err := c.newRequest("PUT", reqMetadata)
if err != nil {
return objectPart{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return objectPart{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return objectPart{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// Once successfully uploaded, return completed part.
objPart := objectPart{}
objPart.Size = size
objPart.PartNumber = partNumber
// Trim off the odd double quotes from ETag in the beginning and end.
objPart.ETag = strings.TrimPrefix(resp.Header.Get("ETag"), "\"")
objPart.ETag = strings.TrimSuffix(objPart.ETag, "\"")
return objPart, nil
}
// completeMultipartUpload - Completes a multipart upload by assembling previously uploaded parts.
func (c Client) completeMultipartUpload(bucketName, objectName, uploadID string, complete completeMultipartUpload) (completeMultipartUploadResult, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return completeMultipartUploadResult{}, err
}
if err := isValidObjectName(objectName); err != nil {
return completeMultipartUploadResult{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", uploadID)
// Marshal complete multipart body.
completeMultipartUploadBytes, err := xml.Marshal(complete)
if err != nil {
return completeMultipartUploadResult{}, err
}
// Instantiate all the complete multipart buffer.
completeMultipartUploadBuffer := bytes.NewBuffer(completeMultipartUploadBytes)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: ioutil.NopCloser(completeMultipartUploadBuffer),
contentLength: int64(completeMultipartUploadBuffer.Len()),
contentSHA256Bytes: sum256(completeMultipartUploadBuffer.Bytes()),
}
// Instantiate the request.
req, err := c.newRequest("POST", reqMetadata)
if err != nil {
return completeMultipartUploadResult{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return completeMultipartUploadResult{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return completeMultipartUploadResult{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// Decode completed multipart upload response on success.
completeMultipartUploadResult := completeMultipartUploadResult{}
err = xmlDecoder(resp.Body, &completeMultipartUploadResult)
if err != nil {
return completeMultipartUploadResult, err
}
return completeMultipartUploadResult, nil
}

378
Godeps/_workspace/src/github.com/minio/minio-go/api-put-object-partial.go generated vendored
View file

@ -1,378 +0,0 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"crypto/md5"
"crypto/sha256"
"errors"
"fmt"
"hash"
"io"
"io/ioutil"
"sort"
)
// PutObjectPartial put object partial.
func (c Client) PutObjectPartial(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// Input size negative should return error.
if size < 0 {
return 0, ErrInvalidArgument("Input file size cannot be negative.")
}
// Input size bigger than 5TiB should fail.
if size > int64(maxMultipartPutObjectSize) {
return 0, ErrInvalidArgument("Input file size is bigger than the supported maximum of 5TiB.")
}
// NOTE: Google Cloud Storage does not implement Amazon S3 Compatible multipart PUT.
// So we fall back to single PUT operation with the maximum limit of 5GiB.
if isGoogleEndpoint(c.endpointURL) {
if size > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("Invalid Content-Length %d for file uploads to Google Cloud Storage.", size),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for Google Cloud Storage. Uploads upto 5GiB in size.
n, err := c.putPartialNoChksum(bucketName, objectName, data, size, contentType)
return n, err
}
// NOTE: S3 doesn't allow anonymous multipart requests.
if isAmazonEndpoint(c.endpointURL) && c.anonymous {
if size > int64(maxSinglePutObjectSize) {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("For anonymous requests Content-Length cannot be %d.", size),
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for anonymous requests to Amazon S3. Uploads upto 5GiB in size.
n, err := c.putPartialAnonymous(bucketName, objectName, data, size, contentType)
return n, err
}
// Small file upload is initiated for uploads for input data size smaller than 5MiB.
if size < minimumPartSize {
n, err = c.putPartialSmallObject(bucketName, objectName, data, size, contentType)
return n, err
}
n, err = c.putPartialLargeObject(bucketName, objectName, data, size, contentType)
return n, err
}
// putNoChecksumPartial special function used Google Cloud Storage. This special function
// is used for Google Cloud Storage since Google's multipart API is not S3 compatible.
func (c Client) putPartialNoChksum(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
if size > maxPartSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// Create a new pipe to stage the reads.
reader, writer := io.Pipe()
// readAtOffset to carry future offsets.
var readAtOffset int64
// readAt defaults to reading at 5MiB buffer.
readAtBuffer := make([]byte, 1024*1024*5)
// Initiate a routine to start writing.
go func() {
for {
readAtSize, rerr := data.ReadAt(readAtBuffer, readAtOffset)
if rerr != nil {
if rerr != io.EOF {
writer.CloseWithError(rerr)
return
}
}
writeSize, werr := writer.Write(readAtBuffer[:readAtSize])
if werr != nil {
writer.CloseWithError(werr)
return
}
if readAtSize != writeSize {
writer.CloseWithError(errors.New("Something really bad happened here. " + reportIssue))
return
}
readAtOffset += int64(writeSize)
if rerr == io.EOF {
writer.Close()
return
}
}
}()
// For anonymous requests, we will not calculate sha256 and md5sum.
putObjData := putObjectData{
MD5Sum: nil,
Sha256Sum: nil,
ReadCloser: reader,
Size: size,
ContentType: contentType,
}
// Execute put object.
st, err := c.putObject(bucketName, objectName, putObjData)
if err != nil {
return 0, err
}
if st.Size != size {
return 0, ErrUnexpectedEOF(st.Size, size, bucketName, objectName)
}
return size, nil
}
// putAnonymousPartial is a special function for uploading content as anonymous request.
// This special function is necessary since Amazon S3 doesn't allow anonymous multipart uploads.
func (c Client) putPartialAnonymous(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
return c.putPartialNoChksum(bucketName, objectName, data, size, contentType)
}
// putSmallObjectPartial uploads files smaller than 5MiB.
func (c Client) putPartialSmallObject(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// readAt defaults to reading at 5MiB buffer.
readAtBuffer := make([]byte, size)
readAtSize, err := data.ReadAt(readAtBuffer, 0)
if err != nil {
if err != io.EOF {
return 0, err
}
}
if int64(readAtSize) != size {
return 0, ErrUnexpectedEOF(int64(readAtSize), size, bucketName, objectName)
}
// Construct a new PUT object metadata.
putObjData := putObjectData{
MD5Sum: sumMD5(readAtBuffer),
Sha256Sum: sum256(readAtBuffer),
ReadCloser: ioutil.NopCloser(bytes.NewReader(readAtBuffer)),
Size: size,
ContentType: contentType,
}
// Single part use case, use putObject directly.
st, err := c.putObject(bucketName, objectName, putObjData)
if err != nil {
return 0, err
}
if st.Size != size {
return 0, ErrUnexpectedEOF(st.Size, size, bucketName, objectName)
}
return size, nil
}
// putPartialLargeObject uploads files bigger than 5MiB.
func (c Client) putPartialLargeObject(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// getUploadID for an object, initiates a new multipart request
// if it cannot find any previously partially uploaded object.
uploadID, err := c.getUploadID(bucketName, objectName, contentType)
if err != nil {
return 0, err
}
// total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var completeMultipartUpload completeMultipartUpload
// Fetch previously upload parts and save the total size.
partsInfo, err := c.listObjectParts(bucketName, objectName, uploadID)
if err != nil {
return 0, err
}
// Previous maximum part size
var prevMaxPartSize int64
// previous part number.
var prevPartNumber int
// Loop through all parts and calculate totalUploadedSize.
for _, partInfo := range partsInfo {
totalUploadedSize += partInfo.Size
// Choose the maximum part size.
if partInfo.Size >= prevMaxPartSize {
prevMaxPartSize = partInfo.Size
}
// Save previous part number.
prevPartNumber = partInfo.PartNumber
}
// Calculate the optimal part size for a given file size.
partSize := optimalPartSize(size)
// If prevMaxPartSize is set use that.
if prevMaxPartSize != 0 {
partSize = prevMaxPartSize
}
// MD5 and Sha256 hasher.
var hashMD5, hashSha256 hash.Hash
// Part number always starts with prevPartNumber + 1. i.e The next part number.
partNumber := prevPartNumber + 1
// Loop through until EOF.
for totalUploadedSize < size {
// Initialize a new temporary file.
tmpFile, err := newTempFile("multiparts$-putobject-partial")
if err != nil {
return 0, err
}
// Create a hash multiwriter.
hashMD5 = md5.New()
hashWriter := io.MultiWriter(hashMD5)
if c.signature.isV4() {
hashSha256 = sha256.New()
hashWriter = io.MultiWriter(hashMD5, hashSha256)
}
writer := io.MultiWriter(tmpFile, hashWriter)
// totalUploadedSize is the current readAtOffset.
readAtOffset := totalUploadedSize
// Read until partSize.
var totalReadPartSize int64
// readAt defaults to reading at 5MiB buffer.
readAtBuffer := make([]byte, optimalReadAtBufferSize)
// Loop through until partSize.
for totalReadPartSize < partSize {
readAtSize, rerr := data.ReadAt(readAtBuffer, readAtOffset)
if rerr != nil {
if rerr != io.EOF {
return 0, rerr
}
}
writeSize, werr := writer.Write(readAtBuffer[:readAtSize])
if werr != nil {
return 0, werr
}
if readAtSize != writeSize {
return 0, errors.New("Something really bad happened here. " + reportIssue)
}
readAtOffset += int64(writeSize)
totalReadPartSize += int64(writeSize)
if rerr == io.EOF {
break
}
}
// Seek back to beginning of the temporary file.
if _, err := tmpFile.Seek(0, 0); err != nil {
return 0, err
}
// Save all the part metadata.
prtData := partData{
ReadCloser: tmpFile,
MD5Sum: hashMD5.Sum(nil),
Size: totalReadPartSize,
}
// Signature version '4'.
if c.signature.isV4() {
prtData.Sha256Sum = hashSha256.Sum(nil)
}
// Current part number to be uploaded.
prtData.Number = partNumber
// execute upload part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, prtData)
if err != nil {
// Close the read closer.
prtData.ReadCloser.Close()
return totalUploadedSize, err
}
// Save successfully uploaded size.
totalUploadedSize += prtData.Size
// Save successfully uploaded part metadata.
partsInfo[prtData.Number] = objPart
// Move to next part.
partNumber++
}
// If size is greater than zero verify totalUploaded.
// if totalUploaded is different than the input 'size', do not complete the request throw an error.
if totalUploadedSize != size {
return totalUploadedSize, ErrUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
// Loop over uploaded parts to save them in a Parts array before completing the multipart request.
for _, part := range partsInfo {
var complPart completePart
complPart.ETag = part.ETag
complPart.PartNumber = part.PartNumber
completeMultipartUpload.Parts = append(completeMultipartUpload.Parts, complPart)
}
// Sort all completed parts.
sort.Sort(completedParts(completeMultipartUpload.Parts))
_, err = c.completeMultipartUpload(bucketName, objectName, uploadID, completeMultipartUpload)
if err != nil {
return totalUploadedSize, err
}
// Return final size.
return totalUploadedSize, nil
}

196
Godeps/_workspace/src/github.com/minio/minio-go/api-put-object-readat.go generated vendored Normal file
View file

@ -0,0 +1,196 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"crypto/md5"
"crypto/sha256"
"errors"
"hash"
"io"
"sort"
)
// putObjectMultipartFromReadAt - Uploads files bigger than 5MiB. Supports reader
// of type which implements io.ReaderAt interface (ReadAt method).
//
// NOTE: This function is meant to be used for all readers which
// implement io.ReaderAt which allows us for resuming multipart
// uploads but reading at an offset, which would avoid re-read the
// data which was already uploaded. Internally this function uses
// temporary files for staging all the data, these temporary files are
// cleaned automatically when the caller i.e http client closes the
// stream after uploading all the contents successfully.
func (c Client) putObjectMultipartFromReadAt(bucketName, objectName string, reader io.ReaderAt, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// Get upload id for an object, initiates a new multipart request
// if it cannot find any previously partially uploaded object.
uploadID, err := c.getUploadID(bucketName, objectName, contentType)
if err != nil {
return 0, err
}
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var completeMultipartUpload completeMultipartUpload
// Fetch previously upload parts.
partsInfo, err := c.listObjectParts(bucketName, objectName, uploadID)
if err != nil {
return 0, err
}
// Previous maximum part size
var prevMaxPartSize int64
// Previous part number.
var prevPartNumber int
// Loop through all parts and calculate totalUploadedSize.
for _, partInfo := range partsInfo {
totalUploadedSize += partInfo.Size
// Choose the maximum part size.
if partInfo.Size >= prevMaxPartSize {
prevMaxPartSize = partInfo.Size
}
// Save previous part number.
prevPartNumber = partInfo.PartNumber
}
// Calculate the optimal part size for a given file size.
partSize := optimalPartSize(size)
// If prevMaxPartSize is set use that.
if prevMaxPartSize != 0 {
partSize = prevMaxPartSize
}
// MD5 and SHA256 hasher.
var hashMD5, hashSHA256 hash.Hash
// Part number always starts with prevPartNumber + 1. i.e The next part number.
partNumber := prevPartNumber + 1
// Upload each part until totalUploadedSize reaches input reader size.
for totalUploadedSize < size {
// Initialize a new temporary file.
tmpFile, err := newTempFile("multiparts$-putobject-partial")
if err != nil {
return 0, err
}
// Create a hash multiwriter.
hashMD5 = md5.New()
hashWriter := io.MultiWriter(hashMD5)
if c.signature.isV4() {
hashSHA256 = sha256.New()
hashWriter = io.MultiWriter(hashMD5, hashSHA256)
}
writer := io.MultiWriter(tmpFile, hashWriter)
// Choose totalUploadedSize as the current readAtOffset.
readAtOffset := totalUploadedSize
// Read until partSize.
var totalReadPartSize int64
// ReadAt defaults to reading at 5MiB buffer.
readAtBuffer := make([]byte, optimalReadAtBufferSize)
// Following block reads data at an offset from the input
// reader and copies data to into local temporary file.
// Temporary file data is limited to the partSize.
for totalReadPartSize < partSize {
readAtSize, rerr := reader.ReadAt(readAtBuffer, readAtOffset)
if rerr != nil {
if rerr != io.EOF {
return 0, rerr
}
}
writeSize, werr := writer.Write(readAtBuffer[:readAtSize])
if werr != nil {
return 0, werr
}
if readAtSize != writeSize {
return 0, errors.New("Something really bad happened here. " + reportIssue)
}
readAtOffset += int64(writeSize)
totalReadPartSize += int64(writeSize)
if rerr == io.EOF {
break
}
}
// Seek back to beginning of the temporary file.
if _, err := tmpFile.Seek(0, 0); err != nil {
return 0, err
}
var md5Sum, sha256Sum []byte
md5Sum = hashMD5.Sum(nil)
// Signature version '4'.
if c.signature.isV4() {
sha256Sum = hashSHA256.Sum(nil)
}
// Proceed to upload the part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, tmpFile, partNumber, md5Sum, sha256Sum, totalReadPartSize)
if err != nil {
// Close the read closer.
tmpFile.Close()
return totalUploadedSize, err
}
// Save successfully uploaded size.
totalUploadedSize += totalReadPartSize
// Save successfully uploaded part metadata.
partsInfo[partNumber] = objPart
// Move to next part.
partNumber++
}
// Verify if we uploaded all the data.
if totalUploadedSize != size {
return totalUploadedSize, ErrUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
// Loop over uploaded parts to save them in a Parts array before completing the multipart request.
for _, part := range partsInfo {
var complPart completePart
complPart.ETag = part.ETag
complPart.PartNumber = part.PartNumber
completeMultipartUpload.Parts = append(completeMultipartUpload.Parts, complPart)
}
// Sort all completed parts.
sort.Sort(completedParts(completeMultipartUpload.Parts))
_, err = c.completeMultipartUpload(bucketName, objectName, uploadID, completeMultipartUpload)
if err != nil {
return totalUploadedSize, err
}
// Return final size.
return totalUploadedSize, nil
}

597
Godeps/_workspace/src/github.com/minio/minio-go/api-put-object.go generated vendored
View file

@ -18,21 +18,43 @@ package minio
import (
"bytes"
"crypto/md5"
"crypto/sha256"
"encoding/hex"
"encoding/xml"
"fmt"
"hash"
"io"
"io/ioutil"
"net/http"
"net/url"
"sort"
"strconv"
"os"
"strings"
)
// getReaderSize gets the size of the underlying reader, if possible.
func getReaderSize(reader io.Reader) (size int64, err error) {
size = -1
if reader != nil {
switch v := reader.(type) {
case *bytes.Buffer:
size = int64(v.Len())
case *bytes.Reader:
size = int64(v.Len())
case *strings.Reader:
size = int64(v.Len())
case *os.File:
var st os.FileInfo
st, err = v.Stat()
if err != nil {
return 0, err
}
size = st.Size()
case *Object:
var st ObjectInfo
st, err = v.Stat()
if err != nil {
return 0, err
}
size = st.Size
}
}
return size, nil
}
// completedParts is a collection of parts sortable by their part numbers.
// used for sorting the uploaded parts before completing the multipart request.
type completedParts []completePart
@ -54,7 +76,7 @@ func (a completedParts) Less(i, j int) bool { return a[i].PartNumber < a[j].Part
// So we fall back to single PUT operation with the maximum limit of 5GiB.
//
// NOTE: For anonymous requests Amazon S3 doesn't allow multipart upload. So we fall back to single PUT operation.
func (c Client) PutObject(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error) {
func (c Client) PutObject(bucketName, objectName string, reader io.Reader, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
@ -63,6 +85,17 @@ func (c Client) PutObject(bucketName, objectName string, data io.Reader, size in
return 0, err
}
// get reader size.
size, err := getReaderSize(reader)
if err != nil {
return 0, err
}
// Check for largest object size allowed.
if size > int64(maxMultipartPutObjectSize) {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// NOTE: Google Cloud Storage does not implement Amazon S3 Compatible multipart PUT.
// So we fall back to single PUT operation with the maximum limit of 5GiB.
if isGoogleEndpoint(c.endpointURL) {
@ -74,55 +107,108 @@ func (c Client) PutObject(bucketName, objectName string, data io.Reader, size in
BucketName: bucketName,
}
}
if size > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// Do not compute MD5 for Google Cloud Storage. Uploads upto 5GiB in size.
return c.putNoChecksum(bucketName, objectName, data, size, contentType)
return c.putObjectNoChecksum(bucketName, objectName, reader, size, contentType)
}
// NOTE: S3 doesn't allow anonymous multipart requests.
if isAmazonEndpoint(c.endpointURL) && c.anonymous {
if size <= -1 || size > int64(maxSinglePutObjectSize) {
if size <= -1 {
return 0, ErrorResponse{
Code: "NotImplemented",
Message: fmt.Sprintf("For anonymous requests Content-Length cannot be %d.", size),
Message: "Content-Length cannot be negative for anonymous requests.",
Key: objectName,
BucketName: bucketName,
}
}
// Do not compute MD5 for anonymous requests to Amazon S3. Uploads upto 5GiB in size.
return c.putAnonymous(bucketName, objectName, data, size, contentType)
}
// Large file upload is initiated for uploads for input data size
// if its greater than 5MiB or data size is negative.
if size >= minimumPartSize || size < 0 {
return c.putLargeObject(bucketName, objectName, data, size, contentType)
}
return c.putSmallObject(bucketName, objectName, data, size, contentType)
}
// putNoChecksum special function used Google Cloud Storage. This special function
// is used for Google Cloud Storage since Google's multipart API is not S3 compatible.
func (c Client) putNoChecksum(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
if size > maxPartSize {
if size > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// For anonymous requests, we will not calculate sha256 and md5sum.
putObjData := putObjectData{
MD5Sum: nil,
Sha256Sum: nil,
ReadCloser: ioutil.NopCloser(data),
Size: size,
ContentType: contentType,
// Do not compute MD5 for anonymous requests to Amazon S3. Uploads upto 5GiB in size.
return c.putObjectNoChecksum(bucketName, objectName, reader, size, contentType)
}
// putSmall object.
if size < minimumPartSize && size > 0 {
return c.putObjectSingle(bucketName, objectName, reader, size, contentType)
}
// For all sizes greater than 5MiB do multipart.
n, err = c.putObjectMultipart(bucketName, objectName, reader, size, contentType)
if err != nil {
errResp := ToErrorResponse(err)
// Verify if multipart functionality is not available, if not
// fall back to single PutObject operation.
if errResp.Code == "NotImplemented" {
// Verify if size of reader is greater than '5GiB'.
if size > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// Fall back to uploading as single PutObject operation.
return c.putObjectSingle(bucketName, objectName, reader, size, contentType)
}
return n, err
}
return n, nil
}
// putObjectNoChecksum special function used Google Cloud Storage. This special function
// is used for Google Cloud Storage since Google's multipart API is not S3 compatible.
func (c Client) putObjectNoChecksum(bucketName, objectName string, reader io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
if size > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// This function does not calculate sha256 and md5sum for payload.
// Execute put object.
st, err := c.putObjectDo(bucketName, objectName, ioutil.NopCloser(reader), nil, nil, size, contentType)
if err != nil {
return 0, err
}
if st.Size != size {
return 0, ErrUnexpectedEOF(st.Size, size, bucketName, objectName)
}
return size, nil
}
// putObjectSingle is a special function for uploading single put object request.
// This special function is used as a fallback when multipart upload fails.
func (c Client) putObjectSingle(bucketName, objectName string, reader io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
if size > maxSinglePutObjectSize {
return 0, ErrEntityTooLarge(size, bucketName, objectName)
}
// If size is a stream, upload upto 5GiB.
if size <= -1 {
size = maxSinglePutObjectSize
}
// Initialize a new temporary file.
tmpFile, err := newTempFile("single$-putobject-single")
if err != nil {
return 0, err
}
md5Sum, sha256Sum, size, err := c.hashCopyN(tmpFile, reader, size)
if err != nil {
if err != io.EOF {
return 0, err
}
}
// Execute put object.
st, err := c.putObject(bucketName, objectName, putObjData)
st, err := c.putObjectDo(bucketName, objectName, tmpFile, md5Sum, sha256Sum, size, contentType)
if err != nil {
return 0, err
}
@ -132,442 +218,67 @@ func (c Client) putNoChecksum(bucketName, objectName string, data io.Reader, siz
return size, nil
}
// putAnonymous is a special function for uploading content as anonymous request.
// This special function is necessary since Amazon S3 doesn't allow anonymous
// multipart uploads.
func (c Client) putAnonymous(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
return c.putNoChecksum(bucketName, objectName, data, size, contentType)
}
// putSmallObject uploads files smaller than 5 mega bytes.
func (c Client) putSmallObject(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// Read input data fully into buffer.
dataBytes, err := ioutil.ReadAll(data)
if err != nil {
return 0, err
}
if int64(len(dataBytes)) != size {
return 0, ErrUnexpectedEOF(int64(len(dataBytes)), size, bucketName, objectName)
}
// Construct a new PUT object metadata.
putObjData := putObjectData{
MD5Sum: sumMD5(dataBytes),
Sha256Sum: sum256(dataBytes),
ReadCloser: ioutil.NopCloser(bytes.NewReader(dataBytes)),
Size: size,
ContentType: contentType,
}
// Single part use case, use putObject directly.
st, err := c.putObject(bucketName, objectName, putObjData)
if err != nil {
return 0, err
}
if st.Size != size {
return 0, ErrUnexpectedEOF(st.Size, size, bucketName, objectName)
}
return size, nil
}
// hashCopy - calculates Md5sum and Sha256sum for upto partSize amount of bytes.
func (c Client) hashCopy(writer io.ReadWriteSeeker, data io.Reader, partSize int64) (md5Sum, sha256Sum []byte, size int64, err error) {
// MD5 and Sha256 hasher.
var hashMD5, hashSha256 hash.Hash
// MD5 and Sha256 hasher.
hashMD5 = md5.New()
hashWriter := io.MultiWriter(writer, hashMD5)
if c.signature.isV4() {
hashSha256 = sha256.New()
hashWriter = io.MultiWriter(writer, hashMD5, hashSha256)
}
// Copies to input at writer.
size, err = io.CopyN(hashWriter, data, partSize)
if err != nil {
// If not EOF return error right here.
if err != io.EOF {
return nil, nil, 0, err
}
}
// Seek back to beginning of input, any error fail right here.
if _, err := writer.Seek(0, 0); err != nil {
return nil, nil, 0, err
}
// Finalize md5shum and sha256 sum.
md5Sum = hashMD5.Sum(nil)
if c.signature.isV4() {
sha256Sum = hashSha256.Sum(nil)
}
return md5Sum, sha256Sum, size, err
}
// putLargeObject uploads files bigger than 5 mega bytes.
func (c Client) putLargeObject(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return 0, err
}
if err := isValidObjectName(objectName); err != nil {
return 0, err
}
// getUploadID for an object, initiates a new multipart request
// if it cannot find any previously partially uploaded object.
uploadID, err := c.getUploadID(bucketName, objectName, contentType)
if err != nil {
return 0, err
}
// total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var completeMultipartUpload completeMultipartUpload
// Fetch previously upload parts and save the total size.
partsInfo, err := c.listObjectParts(bucketName, objectName, uploadID)
if err != nil {
return 0, err
}
// Previous maximum part size
var prevMaxPartSize int64
// Loop through all parts and calculate totalUploadedSize.
for _, partInfo := range partsInfo {
// Choose the maximum part size.
if partInfo.Size >= prevMaxPartSize {
prevMaxPartSize = partInfo.Size
}
}
// Calculate the optimal part size for a given size.
partSize := optimalPartSize(size)
// If prevMaxPartSize is set use that.
if prevMaxPartSize != 0 {
partSize = prevMaxPartSize
}
// Part number always starts with '0'.
partNumber := 0
// Loop through until EOF.
for {
// Increment part number.
partNumber++
// Initialize a new temporary file.
tmpFile, err := newTempFile("multiparts$-putobject")
if err != nil {
return 0, err
}
// Calculates MD5 and Sha256 sum while copying partSize bytes into tmpFile.
md5Sum, sha256Sum, size, rErr := c.hashCopy(tmpFile, data, partSize)
if rErr != nil {
if rErr != io.EOF {
return 0, rErr
}
}
// Save all the part metadata.
prtData := partData{
ReadCloser: tmpFile,
Size: size,
MD5Sum: md5Sum,
Sha256Sum: sha256Sum,
Number: partNumber, // Current part number to be uploaded.
}
// If part not uploaded proceed to upload.
if !isPartUploaded(objectPart{
ETag: hex.EncodeToString(prtData.MD5Sum),
PartNumber: partNumber,
}, partsInfo) {
// execute upload part.
objPart, err := c.uploadPart(bucketName, objectName, uploadID, prtData)
if err != nil {
// Close the read closer.
prtData.ReadCloser.Close()
return 0, err
}
// Save successfully uploaded part metadata.
partsInfo[prtData.Number] = objPart
}
// Close the read closer.
prtData.ReadCloser.Close()
// If read error was an EOF, break out of the loop.
if rErr == io.EOF {
break
}
}
// Loop over uploaded parts to save them in a Parts array before completing the multipart request.
for _, part := range partsInfo {
var complPart completePart
complPart.ETag = part.ETag
complPart.PartNumber = part.PartNumber
completeMultipartUpload.Parts = append(completeMultipartUpload.Parts, complPart)
// Save successfully uploaded size.
totalUploadedSize += part.Size
}
// If size is greater than zero verify totalUploadedSize. if totalUploadedSize is
// different than the input 'size', do not complete the request throw an error.
if size > 0 {
if totalUploadedSize != size {
return totalUploadedSize, ErrUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
}
// If partNumber is different than total list of parts, error out.
if partNumber != len(completeMultipartUpload.Parts) {
return totalUploadedSize, ErrInvalidParts(partNumber, len(completeMultipartUpload.Parts))
}
// Sort all completed parts.
sort.Sort(completedParts(completeMultipartUpload.Parts))
_, err = c.completeMultipartUpload(bucketName, objectName, uploadID, completeMultipartUpload)
if err != nil {
return totalUploadedSize, err
}
// Return final size.
return totalUploadedSize, nil
}
// putObject - add an object to a bucket.
// putObjectDo - executes the put object http operation.
// NOTE: You must have WRITE permissions on a bucket to add an object to it.
func (c Client) putObject(bucketName, objectName string, putObjData putObjectData) (ObjectStat, error) {
func (c Client) putObjectDo(bucketName, objectName string, reader io.ReadCloser, md5Sum []byte, sha256Sum []byte, size int64, contentType string) (ObjectInfo, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
if err := isValidObjectName(objectName); err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
if strings.TrimSpace(putObjData.ContentType) == "" {
putObjData.ContentType = "application/octet-stream"
if size <= -1 {
return ObjectInfo{}, ErrEntityTooSmall(size, bucketName, objectName)
}
if size > maxSinglePutObjectSize {
return ObjectInfo{}, ErrEntityTooLarge(size, bucketName, objectName)
}
if strings.TrimSpace(contentType) == "" {
contentType = "application/octet-stream"
}
// Set headers.
customHeader := make(http.Header)
customHeader.Set("Content-Type", putObjData.ContentType)
customHeader.Set("Content-Type", contentType)
// Populate request metadata.
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
customHeader: customHeader,
contentBody: putObjData.ReadCloser,
contentLength: putObjData.Size,
contentSha256Bytes: putObjData.Sha256Sum,
contentMD5Bytes: putObjData.MD5Sum,
contentBody: reader,
contentLength: size,
contentMD5Bytes: md5Sum,
contentSHA256Bytes: sha256Sum,
}
// Initiate new request.
req, err := c.newRequest("PUT", reqMetadata)
if err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return ObjectStat{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
return ObjectInfo{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
var metadata ObjectStat
var metadata ObjectInfo
// Trim off the odd double quotes from ETag in the beginning and end.
metadata.ETag = strings.TrimPrefix(resp.Header.Get("ETag"), "\"")
metadata.ETag = strings.TrimSuffix(metadata.ETag, "\"")
// A success here means data was written to server successfully.
metadata.Size = putObjData.Size
metadata.Size = size
// Return here.
return metadata, nil
}
// initiateMultipartUpload initiates a multipart upload and returns an upload ID.
func (c Client) initiateMultipartUpload(bucketName, objectName, contentType string) (initiateMultipartUploadResult, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return initiateMultipartUploadResult{}, err
}
if err := isValidObjectName(objectName); err != nil {
return initiateMultipartUploadResult{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploads", "")
if contentType == "" {
contentType = "application/octet-stream"
}
// set ContentType header.
customHeader := make(http.Header)
customHeader.Set("Content-Type", contentType)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: customHeader,
}
// Instantiate the request.
req, err := c.newRequest("POST", reqMetadata)
if err != nil {
return initiateMultipartUploadResult{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return initiateMultipartUploadResult{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return initiateMultipartUploadResult{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// Decode xml initiate multipart.
initiateMultipartUploadResult := initiateMultipartUploadResult{}
err = xmlDecoder(resp.Body, &initiateMultipartUploadResult)
if err != nil {
return initiateMultipartUploadResult, err
}
return initiateMultipartUploadResult, nil
}
// uploadPart uploads a part in a multipart upload.
func (c Client) uploadPart(bucketName, objectName, uploadID string, uploadingPart partData) (objectPart, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return objectPart{}, err
}
if err := isValidObjectName(objectName); err != nil {
return objectPart{}, err
}
// Get resources properly escaped and lined up before using them in http request.
urlValues := make(url.Values)
// Set part number.
urlValues.Set("partNumber", strconv.Itoa(uploadingPart.Number))
// Set upload id.
urlValues.Set("uploadId", uploadID)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: uploadingPart.ReadCloser,
contentLength: uploadingPart.Size,
contentSha256Bytes: uploadingPart.Sha256Sum,
contentMD5Bytes: uploadingPart.MD5Sum,
}
// Instantiate a request.
req, err := c.newRequest("PUT", reqMetadata)
if err != nil {
return objectPart{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return objectPart{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return objectPart{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// Once successfully uploaded, return completed part.
objPart := objectPart{}
objPart.Size = uploadingPart.Size
objPart.PartNumber = uploadingPart.Number
// Trim off the odd double quotes from ETag in the beginning and end.
objPart.ETag = strings.TrimPrefix(resp.Header.Get("ETag"), "\"")
objPart.ETag = strings.TrimSuffix(objPart.ETag, "\"")
return objPart, nil
}
// completeMultipartUpload completes a multipart upload by assembling previously uploaded parts.
func (c Client) completeMultipartUpload(bucketName, objectName, uploadID string, complete completeMultipartUpload) (completeMultipartUploadResult, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return completeMultipartUploadResult{}, err
}
if err := isValidObjectName(objectName); err != nil {
return completeMultipartUploadResult{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", uploadID)
// Marshal complete multipart body.
completeMultipartUploadBytes, err := xml.Marshal(complete)
if err != nil {
return completeMultipartUploadResult{}, err
}
// Instantiate all the complete multipart buffer.
completeMultipartUploadBuffer := bytes.NewBuffer(completeMultipartUploadBytes)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: ioutil.NopCloser(completeMultipartUploadBuffer),
contentLength: int64(completeMultipartUploadBuffer.Len()),
contentSha256Bytes: sum256(completeMultipartUploadBuffer.Bytes()),
}
// Instantiate the request.
req, err := c.newRequest("POST", reqMetadata)
if err != nil {
return completeMultipartUploadResult{}, err
}
// Execute the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return completeMultipartUploadResult{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return completeMultipartUploadResult{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
// If successful response, decode the body.
completeMultipartUploadResult := completeMultipartUploadResult{}
err = xmlDecoder(resp.Body, &completeMultipartUploadResult)
if err != nil {
return completeMultipartUploadResult, err
}
return completeMultipartUploadResult, nil
}

39
Godeps/_workspace/src/github.com/minio/minio-go/api-remove.go generated vendored
View file

@ -26,15 +26,18 @@ import (
// All objects (including all object versions and delete markers).
// in the bucket must be deleted before successfully attempting this request.
func (c Client) RemoveBucket(bucketName string) error {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return err
}
// Instantiate a new request.
req, err := c.newRequest("DELETE", requestMetadata{
bucketName: bucketName,
})
if err != nil {
return err
}
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
@ -54,12 +57,14 @@ func (c Client) RemoveBucket(bucketName string) error {
// RemoveObject remove an object from a bucket.
func (c Client) RemoveObject(bucketName, objectName string) error {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return err
}
if err := isValidObjectName(objectName); err != nil {
return err
}
// Instantiate the request.
req, err := c.newRequest("DELETE", requestMetadata{
bucketName: bucketName,
objectName: objectName,
@ -67,6 +72,7 @@ func (c Client) RemoveObject(bucketName, objectName string) error {
if err != nil {
return err
}
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
@ -81,42 +87,32 @@ func (c Client) RemoveObject(bucketName, objectName string) error {
// RemoveIncompleteUpload aborts an partially uploaded object.
// Requires explicit authentication, no anonymous requests are allowed for multipart API.
func (c Client) RemoveIncompleteUpload(bucketName, objectName string) error {
// Validate input arguments.
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return err
}
if err := isValidObjectName(objectName); err != nil {
return err
}
errorCh := make(chan error)
go func(errorCh chan<- error) {
defer close(errorCh)
// Find multipart upload id of the object.
// Find multipart upload id of the object to be aborted.
uploadID, err := c.findUploadID(bucketName, objectName)
if err != nil {
errorCh <- err
return
return err
}
if uploadID != "" {
// If uploadID is not an empty string, initiate the request.
// Upload id found, abort the incomplete multipart upload.
err := c.abortMultipartUpload(bucketName, objectName, uploadID)
if err != nil {
errorCh <- err
return
}
return
}
}(errorCh)
err, ok := <-errorCh
if ok && err != nil {
return err
}
}
return nil
}
// abortMultipartUpload aborts a multipart upload for the given uploadID, all parts are deleted.
// abortMultipartUpload aborts a multipart upload for the given
// uploadID, all previously uploaded parts are deleted.
func (c Client) abortMultipartUpload(bucketName, objectName, uploadID string) error {
// Validate input arguments.
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return err
}
@ -138,7 +134,7 @@ func (c Client) abortMultipartUpload(bucketName, objectName, uploadID string) er
return err
}
// execute the request.
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
@ -146,11 +142,12 @@ func (c Client) abortMultipartUpload(bucketName, objectName, uploadID string) er
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent {
// Abort has no response body, handle it.
// Abort has no response body, handle it for any errors.
var errorResponse ErrorResponse
switch resp.StatusCode {
case http.StatusNotFound:
// This is needed specifically for Abort and it cannot be converged.
// This is needed specifically for abort and it cannot
// be converged into default case.
errorResponse = ErrorResponse{
Code: "NoSuchUpload",
Message: "The specified multipart upload does not exist.",

64
Godeps/_workspace/src/github.com/minio/minio-go/api-s3-definitions.go generated vendored
View file

@ -21,30 +21,33 @@ import (
"time"
)
// listAllMyBucketsResult container for listBuckets response
// listAllMyBucketsResult container for listBuckets response.
type listAllMyBucketsResult struct {
// Container for one or more buckets.
Buckets struct {
Bucket []BucketStat
Bucket []BucketInfo
}
Owner owner
}
// owner container for bucket owner information
// owner container for bucket owner information.
type owner struct {
DisplayName string
ID string
}
// commonPrefix container for prefix response
// commonPrefix container for prefix response.
type commonPrefix struct {
Prefix string
}
// listBucketResult container for listObjects response
// listBucketResult container for listObjects response.
type listBucketResult struct {
CommonPrefixes []commonPrefix // A response can contain CommonPrefixes only if you have specified a delimiter
Contents []ObjectStat // Metadata about each object returned
// A response can contain CommonPrefixes only if you have
// specified a delimiter.
CommonPrefixes []commonPrefix
// Metadata about each object returned.
Contents []ObjectInfo
Delimiter string
// Encoding type used to encode object keys in the response.
@ -57,13 +60,15 @@ type listBucketResult struct {
MaxKeys int64
Name string
// When response is truncated (the IsTruncated element value in the response
// is true), you can use the key name in this field as marker in the subsequent
// request to get next set of objects. Object storage lists objects in alphabetical
// order Note: This element is returned only if you have delimiter request parameter
// specified. If response does not include the NextMaker and it is truncated,
// you can use the value of the last Key in the response as the marker in the
// subsequent request to get the next set of object keys.
// When response is truncated (the IsTruncated element value in
// the response is true), you can use the key name in this field
// as marker in the subsequent request to get next set of objects.
// Object storage lists objects in alphabetical order Note: This
// element is returned only if you have delimiter request
// parameter specified. If response does not include the NextMaker
// and it is truncated, you can use the value of the last Key in
// the response as the marker in the subsequent request to get the
// next set of object keys.
NextMarker string
Prefix string
}
@ -78,19 +83,20 @@ type listMultipartUploadsResult struct {
EncodingType string
MaxUploads int64
IsTruncated bool
Uploads []ObjectMultipartStat `xml:"Upload"`
Uploads []ObjectMultipartInfo `xml:"Upload"`
Prefix string
Delimiter string
CommonPrefixes []commonPrefix // A response can contain CommonPrefixes only if you specify a delimiter
// A response can contain CommonPrefixes only if you specify a delimiter.
CommonPrefixes []commonPrefix
}
// initiator container for who initiated multipart upload
// initiator container for who initiated multipart upload.
type initiator struct {
ID string
DisplayName string
}
// objectPart container for particular part of an object
// objectPart container for particular part of an object.
type objectPart struct {
// Part number identifies the part.
PartNumber int
@ -98,7 +104,8 @@ type objectPart struct {
// Date and time the part was uploaded.
LastModified time.Time
// Entity tag returned when the part was uploaded, usually md5sum of the part
// Entity tag returned when the part was uploaded, usually md5sum
// of the part.
ETag string
// Size of the uploaded part data.
@ -126,14 +133,16 @@ type listObjectPartsResult struct {
EncodingType string
}
// initiateMultipartUploadResult container for InitiateMultiPartUpload response.
// initiateMultipartUploadResult container for InitiateMultiPartUpload
// response.
type initiateMultipartUploadResult struct {
Bucket string
Key string
UploadID string `xml:"UploadId"`
}
// completeMultipartUploadResult container for completed multipart upload response.
// completeMultipartUploadResult container for completed multipart
// upload response.
type completeMultipartUploadResult struct {
Location string
Bucket string
@ -141,7 +150,8 @@ type completeMultipartUploadResult struct {
ETag string
}
// completePart sub container lists individual part numbers and their md5sum, part of completeMultipartUpload.
// completePart sub container lists individual part numbers and their
// md5sum, part of completeMultipartUpload.
type completePart struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Part" json:"-"`
@ -150,13 +160,13 @@ type completePart struct {
ETag string
}
// completeMultipartUpload container for completing multipart upload
// completeMultipartUpload container for completing multipart upload.
type completeMultipartUpload struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CompleteMultipartUpload" json:"-"`
Parts []completePart `xml:"Part"`
}
// createBucketConfiguration container for bucket configuration
// createBucketConfiguration container for bucket configuration.
type createBucketConfiguration struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CreateBucketConfiguration" json:"-"`
Location string `xml:"LocationConstraint"`
@ -164,7 +174,8 @@ type createBucketConfiguration struct {
// grant container for the grantee and his or her permissions.
type grant struct {
// grantee container for DisplayName and ID of the person being granted permissions.
// grantee container for DisplayName and ID of the person being
// granted permissions.
Grantee struct {
ID string
DisplayName string
@ -175,7 +186,8 @@ type grant struct {
Permission string
}
// accessControlPolicy contains the elements providing ACL permissions for a bucket.
// accessControlPolicy contains the elements providing ACL permissions
// for a bucket.
type accessControlPolicy struct {
// accessControlList container for ACL information.
AccessControlList struct {

25
Godeps/_workspace/src/github.com/minio/minio-go/api-stat.go generated vendored
View file

@ -25,15 +25,18 @@ import (
// BucketExists verify if bucket exists and you have permission to access it.
func (c Client) BucketExists(bucketName string) error {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return err
}
// Instantiate a new request.
req, err := c.newRequest("HEAD", requestMetadata{
bucketName: bucketName,
})
if err != nil {
return err
}
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
@ -48,12 +51,13 @@ func (c Client) BucketExists(bucketName string) error {
}
// StatObject verifies if object exists and you have permission to access.
func (c Client) StatObject(bucketName, objectName string) (ObjectStat, error) {
func (c Client) StatObject(bucketName, objectName string) (ObjectInfo, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
if err := isValidObjectName(objectName); err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
// Instantiate a new request.
req, err := c.newRequest("HEAD", requestMetadata{
@ -61,16 +65,17 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectStat, error) {
objectName: objectName,
})
if err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return ObjectStat{}, err
return ObjectInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return ObjectStat{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
return ObjectInfo{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
}
}
@ -81,7 +86,7 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectStat, error) {
// Parse content length.
size, err := strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 64)
if err != nil {
return ObjectStat{}, ErrorResponse{
return ObjectInfo{}, ErrorResponse{
Code: "InternalError",
Message: "Content-Length is invalid. " + reportIssue,
BucketName: bucketName,
@ -91,9 +96,10 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectStat, error) {
AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
}
}
// Parse Last-Modified has http time format.
date, err := time.Parse(http.TimeFormat, resp.Header.Get("Last-Modified"))
if err != nil {
return ObjectStat{}, ErrorResponse{
return ObjectInfo{}, ErrorResponse{
Code: "InternalError",
Message: "Last-Modified time format is invalid. " + reportIssue,
BucketName: bucketName,
@ -103,12 +109,13 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectStat, error) {
AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
}
}
// Fetch content type if any present.
contentType := strings.TrimSpace(resp.Header.Get("Content-Type"))
if contentType == "" {
contentType = "application/octet-stream"
}
// Save object metadata info.
var objectStat ObjectStat
var objectStat ObjectInfo
objectStat.ETag = md5sum
objectStat.Key = objectName
objectStat.Size = size

125
Godeps/_workspace/src/github.com/minio/minio-go/api.go generated vendored
View file

@ -25,6 +25,7 @@ import (
"net/http/httputil"
"net/url"
"os"
"regexp"
"runtime"
"strings"
"time"
@ -33,10 +34,15 @@ import (
// Client implements Amazon S3 compatible methods.
type Client struct {
/// Standard options.
accessKeyID string // AccessKeyID required for authorized requests.
secretAccessKey string // SecretAccessKey required for authorized requests.
signature SignatureType // Choose a signature type if necessary.
anonymous bool // Set to 'true' if Client has no access and secret keys.
// AccessKeyID required for authorized requests.
accessKeyID string
// SecretAccessKey required for authorized requests.
secretAccessKey string
// Choose a signature type if necessary.
signature SignatureType
// Set to 'true' if Client has no access and secret keys.
anonymous bool
// User supplied.
appInfo struct {
@ -69,7 +75,8 @@ const (
libraryUserAgent = libraryUserAgentPrefix + libraryName + "/" + libraryVersion
)
// NewV2 - instantiate minio client with Amazon S3 signature version '2' compatiblity.
// NewV2 - instantiate minio client with Amazon S3 signature version
// '2' compatiblity.
func NewV2(endpoint string, accessKeyID, secretAccessKey string, insecure bool) (CloudStorageClient, error) {
clnt, err := privateNew(endpoint, accessKeyID, secretAccessKey, insecure)
if err != nil {
@ -80,7 +87,8 @@ func NewV2(endpoint string, accessKeyID, secretAccessKey string, insecure bool)
return clnt, nil
}
// NewV4 - instantiate minio client with Amazon S3 signature version '4' compatibility.
// NewV4 - instantiate minio client with Amazon S3 signature version
// '4' compatibility.
func NewV4(endpoint string, accessKeyID, secretAccessKey string, insecure bool) (CloudStorageClient, error) {
clnt, err := privateNew(endpoint, accessKeyID, secretAccessKey, insecure)
if err != nil {
@ -91,13 +99,15 @@ func NewV4(endpoint string, accessKeyID, secretAccessKey string, insecure bool)
return clnt, nil
}
// New - instantiate minio client Client, adds automatic verification of signature.
// New - instantiate minio client Client, adds automatic verification
// of signature.
func New(endpoint string, accessKeyID, secretAccessKey string, insecure bool) (CloudStorageClient, error) {
clnt, err := privateNew(endpoint, accessKeyID, secretAccessKey, insecure)
if err != nil {
return nil, err
}
// Google cloud storage should be set to signature V2, force it if not.
// Google cloud storage should be set to signature V2, force it if
// not.
if isGoogleEndpoint(clnt.endpointURL) {
clnt.signature = SignatureV2
}
@ -136,7 +146,8 @@ func privateNew(endpoint, accessKeyID, secretAccessKey string, insecure bool) (*
// SetAppInfo - add application details to user agent.
func (c *Client) SetAppInfo(appName string, appVersion string) {
// if app name and version is not set, we do not a new user agent.
// if app name and version is not set, we do not a new user
// agent.
if appName != "" && appVersion != "" {
c.appInfo = struct {
appName string
@ -149,12 +160,13 @@ func (c *Client) SetAppInfo(appName string, appVersion string) {
// SetCustomTransport - set new custom transport.
func (c *Client) SetCustomTransport(customHTTPTransport http.RoundTripper) {
// Set this to override default transport ``http.DefaultTransport``.
// Set this to override default transport
// ``http.DefaultTransport``.
//
// This transport is usually needed for debugging OR to add your own
// custom TLS certificates on the client transport, for custom CA's and
// certs which are not part of standard certificate authority follow this
// example :-
// This transport is usually needed for debugging OR to add your
// own custom TLS certificates on the client transport, for custom
// CA's and certs which are not part of standard certificate
// authority follow this example :-
//
// tr := &http.Transport{
// TLSClientConfig: &tls.Config{RootCAs: pool},
@ -187,7 +199,8 @@ func (c *Client) TraceOff() {
c.isTraceEnabled = false
}
// requestMetadata - is container for all the values to make a request.
// requestMetadata - is container for all the values to make a
// request.
type requestMetadata struct {
// If set newRequest presigns the URL.
presignURL bool
@ -202,10 +215,41 @@ type requestMetadata struct {
// Generated by our internal code.
contentBody io.ReadCloser
contentLength int64
contentSha256Bytes []byte
contentSHA256Bytes []byte
contentMD5Bytes []byte
}
// Filter out signature value from Authorization header.
func (c Client) filterSignature(req *http.Request) {
// For anonymous requests return here.
if c.anonymous {
return
}
// Handle if Signature V2.
if c.signature.isV2() {
// Set a temporary redacted auth
req.Header.Set("Authorization", "AWS **REDACTED**:**REDACTED**")
return
}
/// Signature V4 authorization header.
// Save the original auth.
origAuth := req.Header.Get("Authorization")
// Strip out accessKeyID from:
// Credential=<access-key-id>/<date>/<aws-region>/<aws-service>/aws4_request
regCred := regexp.MustCompile("Credential=([A-Z0-9]+)/")
newAuth := regCred.ReplaceAllString(origAuth, "Credential=**REDACTED**/")
// Strip out 256-bit signature from: Signature=<256-bit signature>
regSign := regexp.MustCompile("Signature=([[0-9a-f]+)")
newAuth = regSign.ReplaceAllString(newAuth, "Signature=**REDACTED**")
// Set a temporary redacted auth
req.Header.Set("Authorization", newAuth)
return
}
// dumpHTTP - dump HTTP request and response.
func (c Client) dumpHTTP(req *http.Request, resp *http.Response) error {
// Starts http dump.
@ -214,6 +258,9 @@ func (c Client) dumpHTTP(req *http.Request, resp *http.Response) error {
return err
}
// Filter out Signature field from Authorization header.
c.filterSignature(req)
// Only display request header.
reqTrace, err := httputil.DumpRequestOut(req, false)
if err != nil {
@ -227,11 +274,22 @@ func (c Client) dumpHTTP(req *http.Request, resp *http.Response) error {
}
// Only display response header.
respTrace, err := httputil.DumpResponse(resp, false)
var respTrace []byte
// For errors we make sure to dump response body as well.
if resp.StatusCode != http.StatusOK &&
resp.StatusCode != http.StatusPartialContent &&
resp.StatusCode != http.StatusNoContent {
respTrace, err = httputil.DumpResponse(resp, true)
if err != nil {
return err
}
} else {
respTrace, err = httputil.DumpResponse(resp, false)
if err != nil {
return err
}
}
// Write response to trace output.
_, err = fmt.Fprint(c.traceOutput, strings.TrimSuffix(string(respTrace), "\r\n"))
if err != nil {
@ -328,11 +386,12 @@ func (c Client) newRequest(method string, metadata requestMetadata) (*http.Reque
// Set sha256 sum only for non anonymous credentials.
if !c.anonymous {
// set sha256 sum for signature calculation only with signature version '4'.
// set sha256 sum for signature calculation only with
// signature version '4'.
if c.signature.isV4() {
req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum256([]byte{})))
if metadata.contentSha256Bytes != nil {
req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(metadata.contentSha256Bytes))
if metadata.contentSHA256Bytes != nil {
req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(metadata.contentSHA256Bytes))
}
}
}
@ -356,6 +415,7 @@ func (c Client) newRequest(method string, metadata requestMetadata) (*http.Reque
return req, nil
}
// set User agent.
func (c Client) setUserAgent(req *http.Request) {
req.Header.Set("User-Agent", libraryUserAgent)
if c.appInfo.appName != "" && c.appInfo.appVersion != "" {
@ -363,12 +423,15 @@ func (c Client) setUserAgent(req *http.Request) {
}
}
// makeTargetURL make a new target url.
func (c Client) makeTargetURL(bucketName, objectName string, queryValues url.Values) (*url.URL, error) {
urlStr := c.endpointURL.Scheme + "://" + c.endpointURL.Host + "/"
// Make URL only if bucketName is available, otherwise use the endpoint URL.
// Make URL only if bucketName is available, otherwise use the
// endpoint URL.
if bucketName != "" {
// If endpoint supports virtual host style use that always.
// Currently only S3 and Google Cloud Storage would support this.
// Currently only S3 and Google Cloud Storage would support
// this.
if isVirtualHostSupported(c.endpointURL) {
urlStr = c.endpointURL.Scheme + "://" + bucketName + "." + c.endpointURL.Host + "/"
if objectName != "" {
@ -403,21 +466,17 @@ type CloudStorageClient interface {
SetBucketACL(bucketName string, cannedACL BucketACL) error
GetBucketACL(bucketName string) (BucketACL, error)
ListBuckets() ([]BucketStat, error)
ListObjects(bucket, prefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectStat
ListIncompleteUploads(bucket, prefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectMultipartStat
ListBuckets() ([]BucketInfo, error)
ListObjects(bucket, prefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectInfo
ListIncompleteUploads(bucket, prefix string, recursive bool, doneCh <-chan struct{}) <-chan ObjectMultipartInfo
// Object Read/Write/Stat operations.
GetObject(bucketName, objectName string) (reader io.ReadCloser, stat ObjectStat, err error)
PutObject(bucketName, objectName string, data io.Reader, size int64, contentType string) (n int64, err error)
StatObject(bucketName, objectName string) (ObjectStat, error)
GetObject(bucketName, objectName string) (reader *Object, err error)
PutObject(bucketName, objectName string, reader io.Reader, contentType string) (n int64, err error)
StatObject(bucketName, objectName string) (ObjectInfo, error)
RemoveObject(bucketName, objectName string) error
RemoveIncompleteUpload(bucketName, objectName string) error
// Object Read/Write for sparse upload.
GetObjectPartial(bucketName, objectName string) (reader ReadAtCloser, stat ObjectStat, err error)
PutObjectPartial(bucketName, objectName string, data ReadAtCloser, size int64, contentType string) (n int64, err error)
// File to Object API.
FPutObject(bucketName, objectName, filePath, contentType string) (n int64, err error)
FGetObject(bucketName, objectName, filePath string) error

751
Godeps/_workspace/src/github.com/minio/minio-go/api_functional_v2_test.go generated vendored Normal file
View file

@ -0,0 +1,751 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio_test
import (
"bytes"
crand "crypto/rand"
"errors"
"io"
"io/ioutil"
"math/rand"
"net/http"
"os"
"testing"
"time"
"github.com/minio/minio-go"
)
// Tests removing partially uploaded objects.
func TestRemovePartiallyUploadedV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping function tests for short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.NewV2(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(os.Stderr)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
reader, writer := io.Pipe()
go func() {
i := 0
for i < 25 {
_, err = io.CopyN(writer, crand.Reader, 128*1024)
if err != nil {
t.Fatal("Error:", err, bucketName)
}
i++
}
writer.CloseWithError(errors.New("Proactively closed to be verified later."))
}()
objectName := bucketName + "-resumable"
_, err = c.PutObject(bucketName, objectName, reader, "application/octet-stream")
if err == nil {
t.Fatal("Error: PutObject should fail.")
}
if err.Error() != "Proactively closed to be verified later." {
t.Fatal("Error:", err)
}
err = c.RemoveIncompleteUpload(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests resumable file based put object multipart upload.
func TestResumableFPutObjectV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(os.Stderr)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
file, err := ioutil.TempFile(os.TempDir(), "resumable")
if err != nil {
t.Fatal("Error:", err)
}
n, err := io.CopyN(file, crand.Reader, 11*1024*1024)
if err != nil {
t.Fatal("Error:", err)
}
if n != int64(11*1024*1024) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", 11*1024*1024, n)
}
objectName := bucketName + "-resumable"
n, err = c.FPutObject(bucketName, objectName, file.Name(), "application/octet-stream")
if err != nil {
t.Fatal("Error:", err)
}
if n != int64(11*1024*1024) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", 11*1024*1024, n)
}
// Close the file pro-actively for windows.
file.Close()
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
err = os.Remove(file.Name())
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests resumable put object multipart upload.
func TestResumablePutObjectV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// generate 11MB
buf := make([]byte, 11*1024*1024)
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error:", err)
}
objectName := bucketName + "-resumable"
reader := bytes.NewReader(buf)
n, err := c.PutObject(bucketName, objectName, reader, "application/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if n != int64(len(buf)) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests get object ReaderSeeker interface methods.
func TestGetObjectReadSeekFunctionalV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// Generate data more than 32K
buf := make([]byte, rand.Intn(1<<20)+32*1024)
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error:", err)
}
// Save the data
objectName := randString(60, rand.NewSource(time.Now().UnixNano()))
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if n != int64(len(buf)) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
// Read the data back
r, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
st, err := r.Stat()
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if st.Size != int64(len(buf)) {
t.Fatalf("Error: number of bytes in stat does not match, want %v, got %v\n",
len(buf), st.Size)
}
offset := int64(2048)
n, err = r.Seek(offset, 0)
if err != nil {
t.Fatal("Error:", err, offset)
}
if n != offset {
t.Fatalf("Error: number of bytes seeked does not match, want %v, got %v\n",
offset, n)
}
n, err = r.Seek(0, 1)
if err != nil {
t.Fatal("Error:", err)
}
if n != offset {
t.Fatalf("Error: number of current seek does not match, want %v, got %v\n",
offset, n)
}
_, err = r.Seek(offset, 2)
if err == nil {
t.Fatal("Error: seek on positive offset for whence '2' should error out")
}
n, err = r.Seek(-offset, 2)
if err != nil {
t.Fatal("Error:", err)
}
if n != 0 {
t.Fatalf("Error: number of bytes seeked back does not match, want 0, got %v\n", n)
}
var buffer bytes.Buffer
if _, err = io.CopyN(&buffer, r, st.Size); err != nil {
t.Fatal("Error:", err)
}
if !bytes.Equal(buf, buffer.Bytes()) {
t.Fatal("Error: Incorrect read bytes v/s original buffer.")
}
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests get object ReaderAt interface methods.
func TestGetObjectReadAtFunctionalV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// Generate data more than 32K
buf := make([]byte, rand.Intn(1<<20)+32*1024)
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error:", err)
}
// Save the data
objectName := randString(60, rand.NewSource(time.Now().UnixNano()))
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if n != int64(len(buf)) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
// Read the data back
r, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
st, err := r.Stat()
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if st.Size != int64(len(buf)) {
t.Fatalf("Error: number of bytes in stat does not match, want %v, got %v\n",
len(buf), st.Size)
}
offset := int64(2048)
// Read directly
buf2 := make([]byte, 512)
buf3 := make([]byte, 512)
buf4 := make([]byte, 512)
m, err := r.ReadAt(buf2, offset)
if err != nil {
t.Fatal("Error:", err, st.Size, len(buf2), offset)
}
if m != len(buf2) {
t.Fatalf("Error: ReadAt read shorter bytes before reaching EOF, want %v, got %v\n", m, len(buf2))
}
if !bytes.Equal(buf2, buf[offset:offset+512]) {
t.Fatal("Error: Incorrect read between two ReadAt from same offset.")
}
offset += 512
m, err = r.ReadAt(buf3, offset)
if err != nil {
t.Fatal("Error:", err, st.Size, len(buf3), offset)
}
if m != len(buf3) {
t.Fatalf("Error: ReadAt read shorter bytes before reaching EOF, want %v, got %v\n", m, len(buf3))
}
if !bytes.Equal(buf3, buf[offset:offset+512]) {
t.Fatal("Error: Incorrect read between two ReadAt from same offset.")
}
offset += 512
m, err = r.ReadAt(buf4, offset)
if err != nil {
t.Fatal("Error:", err, st.Size, len(buf4), offset)
}
if m != len(buf4) {
t.Fatalf("Error: ReadAt read shorter bytes before reaching EOF, want %v, got %v\n", m, len(buf4))
}
if !bytes.Equal(buf4, buf[offset:offset+512]) {
t.Fatal("Error: Incorrect read between two ReadAt from same offset.")
}
buf5 := make([]byte, n)
// Read the whole object.
m, err = r.ReadAt(buf5, 0)
if err != nil {
if err != io.EOF {
t.Fatal("Error:", err, len(buf5))
}
}
if m != len(buf5) {
t.Fatalf("Error: ReadAt read shorter bytes before reaching EOF, want %v, got %v\n", m, len(buf5))
}
if !bytes.Equal(buf, buf5) {
t.Fatal("Error: Incorrect data read in GetObject, than what was previously upoaded.")
}
buf6 := make([]byte, n+1)
// Read the whole object and beyond.
_, err = r.ReadAt(buf6, 0)
if err != nil {
if err != io.EOF {
t.Fatal("Error:", err, len(buf6))
}
}
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests comprehensive list of all methods.
func TestFunctionalV2(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable to debug
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// Generate a random file name.
fileName := randString(60, rand.NewSource(time.Now().UnixNano()))
file, err := os.Create(fileName)
if err != nil {
t.Fatal("Error:", err)
}
var totalSize int64
for i := 0; i < 3; i++ {
buf := make([]byte, rand.Intn(1<<19))
n, err := file.Write(buf)
if err != nil {
t.Fatal("Error:", err)
}
totalSize += int64(n)
}
file.Close()
// Verify if bucket exits and you have access.
err = c.BucketExists(bucketName)
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// Make the bucket 'public read/write'.
err = c.SetBucketACL(bucketName, "public-read-write")
if err != nil {
t.Fatal("Error:", err)
}
// Get the previously set acl.
acl, err := c.GetBucketACL(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
// ACL must be 'public read/write'.
if acl != minio.BucketACL("public-read-write") {
t.Fatal("Error:", acl)
}
// List all buckets.
buckets, err := c.ListBuckets()
if len(buckets) == 0 {
t.Fatal("Error: list buckets cannot be empty", buckets)
}
if err != nil {
t.Fatal("Error:", err)
}
// Verify if previously created bucket is listed in list buckets.
bucketFound := false
for _, bucket := range buckets {
if bucket.Name == bucketName {
bucketFound = true
}
}
// If bucket not found error out.
if !bucketFound {
t.Fatal("Error: bucket ", bucketName, "not found")
}
objectName := bucketName + "unique"
// Generate data
buf := make([]byte, rand.Intn(1<<19))
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error: ", err)
}
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "")
if err != nil {
t.Fatal("Error: ", err)
}
if n != int64(len(buf)) {
t.Fatal("Error: bad length ", n, len(buf))
}
n, err = c.PutObject(bucketName, objectName+"-nolength", bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName+"-nolength")
}
if n != int64(len(buf)) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
// Instantiate a done channel to close all listing.
doneCh := make(chan struct{})
defer close(doneCh)
objFound := false
isRecursive := true // Recursive is true.
for obj := range c.ListObjects(bucketName, objectName, isRecursive, doneCh) {
if obj.Key == objectName {
objFound = true
break
}
}
if !objFound {
t.Fatal("Error: object " + objectName + " not found.")
}
incompObjNotFound := true
for objIncompl := range c.ListIncompleteUploads(bucketName, objectName, isRecursive, doneCh) {
if objIncompl.Key != "" {
incompObjNotFound = false
break
}
}
if !incompObjNotFound {
t.Fatal("Error: unexpected dangling incomplete upload found.")
}
newReader, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
newReadBytes, err := ioutil.ReadAll(newReader)
if err != nil {
t.Fatal("Error: ", err)
}
if !bytes.Equal(newReadBytes, buf) {
t.Fatal("Error: bytes mismatch.")
}
err = c.FGetObject(bucketName, objectName, fileName+"-f")
if err != nil {
t.Fatal("Error: ", err)
}
presignedGetURL, err := c.PresignedGetObject(bucketName, objectName, 3600*time.Second)
if err != nil {
t.Fatal("Error: ", err)
}
resp, err := http.Get(presignedGetURL)
if err != nil {
t.Fatal("Error: ", err)
}
if resp.StatusCode != http.StatusOK {
t.Fatal("Error: ", resp.Status)
}
newPresignedBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
t.Fatal("Error: ", err)
}
if !bytes.Equal(newPresignedBytes, buf) {
t.Fatal("Error: bytes mismatch.")
}
presignedPutURL, err := c.PresignedPutObject(bucketName, objectName+"-presigned", 3600*time.Second)
if err != nil {
t.Fatal("Error: ", err)
}
buf = make([]byte, rand.Intn(1<<20))
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error: ", err)
}
req, err := http.NewRequest("PUT", presignedPutURL, bytes.NewReader(buf))
if err != nil {
t.Fatal("Error: ", err)
}
httpClient := &http.Client{}
resp, err = httpClient.Do(req)
if err != nil {
t.Fatal("Error: ", err)
}
newReader, err = c.GetObject(bucketName, objectName+"-presigned")
if err != nil {
t.Fatal("Error: ", err)
}
newReadBytes, err = ioutil.ReadAll(newReader)
if err != nil {
t.Fatal("Error: ", err)
}
if !bytes.Equal(newReadBytes, buf) {
t.Fatal("Error: bytes mismatch.")
}
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveObject(bucketName, objectName+"-f")
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveObject(bucketName, objectName+"-nolength")
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveObject(bucketName, objectName+"-presigned")
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
err = c.RemoveBucket(bucketName)
if err == nil {
t.Fatal("Error:")
}
if err.Error() != "The specified bucket does not exist" {
t.Fatal("Error: ", err)
}
if err = os.Remove(fileName); err != nil {
t.Fatal("Error: ", err)
}
if err = os.Remove(fileName + "-f"); err != nil {
t.Fatal("Error: ", err)
}
}

340
Godeps/_workspace/src/github.com/minio/minio-go/api_functional_test.go → Godeps/_workspace/src/github.com/minio/minio-go/api_functional_v4_test.go generated vendored
View file

@ -19,6 +19,7 @@ package minio_test
import (
"bytes"
crand "crypto/rand"
"errors"
"io"
"io/ioutil"
"math/rand"
@ -54,9 +55,10 @@ func randString(n int, src rand.Source) string {
return string(b[0:30])
}
func TestResumableFPutObject(t *testing.T) {
// Tests removing partially uploaded objects.
func TestRemovePartiallyUploaded(t *testing.T) {
if testing.Short() {
t.Skip("skipping resumable tests with short runs")
t.Skip("skipping function tests for short runs")
}
// Seed random based on current time.
@ -64,9 +66,9 @@ func TestResumableFPutObject(t *testing.T) {
// Connect and make sure bucket exists.
c, err := minio.New(
"play.minio.io:9002",
"Q3AM3UQ867SPQQA43P2F",
"zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
@ -77,12 +79,78 @@ func TestResumableFPutObject(t *testing.T) {
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(nil)
// c.TraceOn(os.Stderr)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
reader, writer := io.Pipe()
go func() {
i := 0
for i < 25 {
_, err = io.CopyN(writer, crand.Reader, 128*1024)
if err != nil {
t.Fatal("Error:", err, bucketName)
}
i++
}
writer.CloseWithError(errors.New("Proactively closed to be verified later."))
}()
objectName := bucketName + "-resumable"
_, err = c.PutObject(bucketName, objectName, reader, "application/octet-stream")
if err == nil {
t.Fatal("Error: PutObject should fail.")
}
if err.Error() != "Proactively closed to be verified later." {
t.Fatal("Error:", err)
}
err = c.RemoveIncompleteUpload(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests resumable file based put object multipart upload.
func TestResumableFPutObject(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(os.Stderr)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
@ -93,7 +161,10 @@ func TestResumableFPutObject(t *testing.T) {
t.Fatal("Error:", err)
}
n, _ := io.CopyN(file, crand.Reader, 11*1024*1024)
n, err := io.CopyN(file, crand.Reader, 11*1024*1024)
if err != nil {
t.Fatal("Error:", err)
}
if n != int64(11*1024*1024) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", 11*1024*1024, n)
}
@ -127,9 +198,10 @@ func TestResumableFPutObject(t *testing.T) {
}
}
// Tests resumable put object multipart upload.
func TestResumablePutObject(t *testing.T) {
if testing.Short() {
t.Skip("skipping resumable tests with short runs")
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
@ -137,31 +209,31 @@ func TestResumablePutObject(t *testing.T) {
// Connect and make sure bucket exists.
c, err := minio.New(
"play.minio.io:9002",
"Q3AM3UQ867SPQQA43P2F",
"zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(nil)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// generate 11MB
// Generate 11MB
buf := make([]byte, 11*1024*1024)
_, err = io.ReadFull(crand.Reader, buf)
@ -171,7 +243,7 @@ func TestResumablePutObject(t *testing.T) {
objectName := bucketName + "-resumable"
reader := bytes.NewReader(buf)
n, err := c.PutObject(bucketName, objectName, reader, int64(reader.Len()), "application/octet-stream")
n, err := c.PutObject(bucketName, objectName, reader, "application/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
@ -190,37 +262,42 @@ func TestResumablePutObject(t *testing.T) {
}
}
func TestGetObjectPartialFunctional(t *testing.T) {
// Tests get object ReaderSeeker interface methods.
func TestGetObjectReadSeekFunctional(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"play.minio.io:9002",
"Q3AM3UQ867SPQQA43P2F",
"zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(nil)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// generate data more than 32K
// Generate data more than 32K
buf := make([]byte, rand.Intn(1<<20)+32*1024)
_, err = io.ReadFull(crand.Reader, buf)
@ -228,9 +305,123 @@ func TestGetObjectPartialFunctional(t *testing.T) {
t.Fatal("Error:", err)
}
// save the data
// Save the data
objectName := randString(60, rand.NewSource(time.Now().UnixNano()))
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), int64(len(buf)), "binary/octet-stream")
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if n != int64(len(buf)) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
// Read the data back
r, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
st, err := r.Stat()
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if st.Size != int64(len(buf)) {
t.Fatalf("Error: number of bytes in stat does not match, want %v, got %v\n",
len(buf), st.Size)
}
offset := int64(2048)
n, err = r.Seek(offset, 0)
if err != nil {
t.Fatal("Error:", err, offset)
}
if n != offset {
t.Fatalf("Error: number of bytes seeked does not match, want %v, got %v\n",
offset, n)
}
n, err = r.Seek(0, 1)
if err != nil {
t.Fatal("Error:", err)
}
if n != offset {
t.Fatalf("Error: number of current seek does not match, want %v, got %v\n",
offset, n)
}
_, err = r.Seek(offset, 2)
if err == nil {
t.Fatal("Error: seek on positive offset for whence '2' should error out")
}
n, err = r.Seek(-offset, 2)
if err != nil {
t.Fatal("Error:", err)
}
if n != 0 {
t.Fatalf("Error: number of bytes seeked back does not match, want 0, got %v\n", n)
}
var buffer bytes.Buffer
if _, err = io.CopyN(&buffer, r, st.Size); err != nil {
t.Fatal("Error:", err)
}
if !bytes.Equal(buf, buffer.Bytes()) {
t.Fatal("Error: Incorrect read bytes v/s original buffer.")
}
err = c.RemoveObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
err = c.RemoveBucket(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
}
// Tests get object ReaderAt interface methods.
func TestGetObjectReadAtFunctional(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
// Connect and make sure bucket exists.
c, err := minio.New(
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable tracing, write to stderr.
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// Generate data more than 32K
buf := make([]byte, rand.Intn(1<<20)+32*1024)
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error:", err)
}
// Save the data
objectName := randString(60, rand.NewSource(time.Now().UnixNano()))
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
@ -240,11 +431,15 @@ func TestGetObjectPartialFunctional(t *testing.T) {
}
// read the data back
r, st, err := c.GetObjectPartial(bucketName, objectName)
r, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
st, err := r.Stat()
if err != nil {
t.Fatal("Error:", err, bucketName, objectName)
}
if st.Size != int64(len(buf)) {
t.Fatalf("Error: number of bytes in stat does not match, want %v, got %v\n",
len(buf), st.Size)
@ -323,36 +518,41 @@ func TestGetObjectPartialFunctional(t *testing.T) {
}
}
// Tests comprehensive list of all methods.
func TestFunctional(t *testing.T) {
if testing.Short() {
t.Skip("skipping functional tests for the short runs")
}
// Seed random based on current time.
rand.Seed(time.Now().Unix())
c, err := minio.New(
"play.minio.io:9002",
"Q3AM3UQ867SPQQA43P2F",
"zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
"s3.amazonaws.com",
os.Getenv("ACCESS_KEY"),
os.Getenv("SECRET_KEY"),
false,
)
if err != nil {
t.Fatal("Error:", err)
}
// Enable to debug
// c.TraceOn(os.Stderr)
// Set user agent.
c.SetAppInfo("Minio-go-FunctionalTest", "0.1.0")
// Enable tracing, write to stdout.
// c.TraceOn(nil)
// Generate a new random bucket name.
bucketName := randString(60, rand.NewSource(time.Now().UnixNano()))
// make a new bucket.
// Make a new bucket.
err = c.MakeBucket(bucketName, "private", "us-east-1")
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// generate a random file name.
// Generate a random file name.
fileName := randString(60, rand.NewSource(time.Now().UnixNano()))
file, err := os.Create(fileName)
if err != nil {
@ -369,31 +569,34 @@ func TestFunctional(t *testing.T) {
}
file.Close()
// verify if bucket exits and you have access.
// Verify if bucket exits and you have access.
err = c.BucketExists(bucketName)
if err != nil {
t.Fatal("Error:", err, bucketName)
}
// make the bucket 'public read/write'.
// Make the bucket 'public read/write'.
err = c.SetBucketACL(bucketName, "public-read-write")
if err != nil {
t.Fatal("Error:", err)
}
// get the previously set acl.
// Get the previously set acl.
acl, err := c.GetBucketACL(bucketName)
if err != nil {
t.Fatal("Error:", err)
}
// acl must be 'public read/write'.
// ACL must be 'public read/write'.
if acl != minio.BucketACL("public-read-write") {
t.Fatal("Error:", acl)
}
// list all buckets.
// List all buckets.
buckets, err := c.ListBuckets()
if len(buckets) == 0 {
t.Fatal("Error: list buckets cannot be empty", buckets)
}
if err != nil {
t.Fatal("Error:", err)
}
@ -413,14 +616,14 @@ func TestFunctional(t *testing.T) {
objectName := bucketName + "unique"
// generate data
// Generate data
buf := make([]byte, rand.Intn(1<<19))
_, err = io.ReadFull(crand.Reader, buf)
if err != nil {
t.Fatal("Error: ", err)
}
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), int64(len(buf)), "")
n, err := c.PutObject(bucketName, objectName, bytes.NewReader(buf), "")
if err != nil {
t.Fatal("Error: ", err)
}
@ -428,7 +631,7 @@ func TestFunctional(t *testing.T) {
t.Fatal("Error: bad length ", n, len(buf))
}
n, err = c.PutObject(bucketName, objectName+"-nolength", bytes.NewReader(buf), -1, "binary/octet-stream")
n, err = c.PutObject(bucketName, objectName+"-nolength", bytes.NewReader(buf), "binary/octet-stream")
if err != nil {
t.Fatal("Error:", err, bucketName, objectName+"-nolength")
}
@ -437,7 +640,34 @@ func TestFunctional(t *testing.T) {
t.Fatalf("Error: number of bytes does not match, want %v, got %v\n", len(buf), n)
}
newReader, _, err := c.GetObject(bucketName, objectName)
// Instantiate a done channel to close all listing.
doneCh := make(chan struct{})
defer close(doneCh)
objFound := false
isRecursive := true // Recursive is true.
for obj := range c.ListObjects(bucketName, objectName, isRecursive, doneCh) {
if obj.Key == objectName {
objFound = true
break
}
}
if !objFound {
t.Fatal("Error: object " + objectName + " not found.")
}
incompObjNotFound := true
for objIncompl := range c.ListIncompleteUploads(bucketName, objectName, isRecursive, doneCh) {
if objIncompl.Key != "" {
incompObjNotFound = false
break
}
}
if !incompObjNotFound {
t.Fatal("Error: unexpected dangling incomplete upload found.")
}
newReader, err := c.GetObject(bucketName, objectName)
if err != nil {
t.Fatal("Error: ", err)
}
@ -451,15 +681,7 @@ func TestFunctional(t *testing.T) {
t.Fatal("Error: bytes mismatch.")
}
n, err = c.FPutObject(bucketName, objectName+"-f", fileName, "text/plain")
if err != nil {
t.Fatal("Error: ", err)
}
if n != totalSize {
t.Fatal("Error: bad length ", n, totalSize)
}
err = c.FGetObject(bucketName, objectName+"-f", fileName+"-f")
err = c.FGetObject(bucketName, objectName, fileName+"-f")
if err != nil {
t.Fatal("Error: ", err)
}
@ -503,7 +725,7 @@ func TestFunctional(t *testing.T) {
t.Fatal("Error: ", err)
}
newReader, _, err = c.GetObject(bucketName, objectName+"-presigned")
newReader, err = c.GetObject(bucketName, objectName+"-presigned")
if err != nil {
t.Fatal("Error: ", err)
}
@ -537,11 +759,11 @@ func TestFunctional(t *testing.T) {
if err != nil {
t.Fatal("Error:", err)
}
err = c.RemoveBucket("bucket1")
err = c.RemoveBucket(bucketName)
if err == nil {
t.Fatal("Error:")
}
if err.Error() != "The specified bucket does not exist." {
if err.Error() != "The specified bucket does not exist" {
t.Fatal("Error: ", err)
}
if err = os.Remove(fileName); err != nil {

117
Godeps/_workspace/src/github.com/minio/minio-go/api_private_test.go → Godeps/_workspace/src/github.com/minio/minio-go/api_unit_test.go generated vendored
View file

@ -17,11 +17,126 @@
package minio
import (
"fmt"
"net/http"
"net/url"
"strings"
"testing"
)
func TestSignature(t *testing.T) {
func TestEncodeURL2Path(t *testing.T) {
type urlStrings struct {
objName string
encodedObjName string
}
bucketName := "bucketName"
want := []urlStrings{
{
objName: "本語",
encodedObjName: "%E6%9C%AC%E8%AA%9E",
},
{
objName: "本語.1",
encodedObjName: "%E6%9C%AC%E8%AA%9E.1",
},
{
objName: ">123>3123123",
encodedObjName: "%3E123%3E3123123",
},
{
objName: "test 1 2.txt",
encodedObjName: "test%201%202.txt",
},
{
objName: "test++ 1.txt",
encodedObjName: "test%2B%2B%201.txt",
},
}
for _, o := range want {
u, err := url.Parse(fmt.Sprintf("https://%s.s3.amazonaws.com/%s", bucketName, o.objName))
if err != nil {
t.Fatal("Error:", err)
}
urlPath := "/" + bucketName + "/" + o.encodedObjName
if urlPath != encodeURL2Path(u) {
t.Fatal("Error")
}
}
}
func TestErrorResponse(t *testing.T) {
var err error
err = ErrorResponse{
Code: "Testing",
}
errResp := ToErrorResponse(err)
if errResp.Code != "Testing" {
t.Fatal("Type conversion failed, we have an empty struct.")
}
// Test http response decoding.
var httpResponse *http.Response
// Set empty variables
httpResponse = nil
var bucketName, objectName string
// Should fail with invalid argument.
err = HTTPRespToErrorResponse(httpResponse, bucketName, objectName)
errResp = ToErrorResponse(err)
if errResp.Code != "InvalidArgument" {
t.Fatal("Empty response input should return invalid argument.")
}
}
func TestSignatureCalculation(t *testing.T) {
req, err := http.NewRequest("GET", "https://s3.amazonaws.com", nil)
if err != nil {
t.Fatal("Error:", err)
}
req = SignV4(*req, "", "", "us-east-1")
if req.Header.Get("Authorization") != "" {
t.Fatal("Error: anonymous credentials should not have Authorization header.")
}
req = PreSignV4(*req, "", "", "us-east-1", 0)
if strings.Contains(req.URL.RawQuery, "X-Amz-Signature") {
t.Fatal("Error: anonymous credentials should not have Signature query resource.")
}
req = SignV2(*req, "", "")
if req.Header.Get("Authorization") != "" {
t.Fatal("Error: anonymous credentials should not have Authorization header.")
}
req = PreSignV2(*req, "", "", 0)
if strings.Contains(req.URL.RawQuery, "Signature") {
t.Fatal("Error: anonymous credentials should not have Signature query resource.")
}
req = SignV4(*req, "ACCESS-KEY", "SECRET-KEY", "us-east-1")
if req.Header.Get("Authorization") == "" {
t.Fatal("Error: normal credentials should have Authorization header.")
}
req = PreSignV4(*req, "ACCESS-KEY", "SECRET-KEY", "us-east-1", 0)
if !strings.Contains(req.URL.RawQuery, "X-Amz-Signature") {
t.Fatal("Error: normal credentials should have Signature query resource.")
}
req = SignV2(*req, "ACCESS-KEY", "SECRET-KEY")
if req.Header.Get("Authorization") == "" {
t.Fatal("Error: normal credentials should have Authorization header.")
}
req = PreSignV2(*req, "ACCESS-KEY", "SECRET-KEY", 0)
if !strings.Contains(req.URL.RawQuery, "Signature") {
t.Fatal("Error: normal credentials should not have Signature query resource.")
}
}
func TestSignatureType(t *testing.T) {
clnt := Client{}
if !clnt.signature.isV4() {
t.Fatal("Error")

4
Godeps/_workspace/src/github.com/minio/minio-go/appveyor.yml generated vendored
View file

@ -26,8 +26,8 @@ build_script:
- gofmt -s -l .
- golint github.com/minio/minio-go...
- deadcode
- go test
- go test -test.short -race
- go test -short -v
- go test -short -race -v
# to disable automatic tests
test: off

14
Godeps/_workspace/src/github.com/minio/minio-go/bucket-acl.go generated vendored
View file

@ -16,7 +16,7 @@
package minio
// BucketACL - bucket level access control.
// BucketACL - Bucket level access control.
type BucketACL string
// Different types of ACL's currently supported for buckets.
@ -35,7 +35,7 @@ func (b BucketACL) String() string {
return string(b)
}
// isValidBucketACL - is provided acl string supported.
// isValidBucketACL - Is provided acl string supported.
func (b BucketACL) isValidBucketACL() bool {
switch true {
case b.isPrivate():
@ -47,29 +47,29 @@ func (b BucketACL) isValidBucketACL() bool {
case b.isAuthenticated():
return true
case b.String() == "private":
// by default its "private"
// By default its "private"
return true
default:
return false
}
}
// isPrivate - is acl Private.
// isPrivate - Is acl Private.
func (b BucketACL) isPrivate() bool {
return b == bucketPrivate
}
// isPublicRead - is acl PublicRead.
// isPublicRead - Is acl PublicRead.
func (b BucketACL) isReadOnly() bool {
return b == bucketReadOnly
}
// isPublicReadWrite - is acl PublicReadWrite.
// isPublicReadWrite - Is acl PublicReadWrite.
func (b BucketACL) isPublic() bool {
return b == bucketPublic
}
// isAuthenticated - is acl AuthenticatedRead.
// isAuthenticated - Is acl AuthenticatedRead.
func (b BucketACL) isAuthenticated() bool {
return b == bucketAuthenticated
}

31
Godeps/_workspace/src/github.com/minio/minio-go/bucket-cache.go generated vendored
View file

@ -24,25 +24,26 @@ import (
"sync"
)
// bucketLocationCache provides simple mechansim to hold bucket locations in memory.
// bucketLocationCache - Provides simple mechansim to hold bucket
// locations in memory.
type bucketLocationCache struct {
// Mutex is used for handling the concurrent
// read/write requests for cache
// mutex is used for handling the concurrent
// read/write requests for cache.
sync.RWMutex
// items holds the cached bucket locations.
items map[string]string
}
// newBucketLocationCache provides a new bucket location cache to be used
// internally with the client object.
// newBucketLocationCache - Provides a new bucket location cache to be
// used internally with the client object.
func newBucketLocationCache() *bucketLocationCache {
return &bucketLocationCache{
items: make(map[string]string),
}
}
// Get returns a value of a given key if it exists
// Get - Returns a value of a given key if it exists.
func (r *bucketLocationCache) Get(bucketName string) (location string, ok bool) {
r.RLock()
defer r.RUnlock()
@ -50,21 +51,21 @@ func (r *bucketLocationCache) Get(bucketName string) (location string, ok bool)
return
}
// Set will persist a value to the cache
// Set - Will persist a value into cache.
func (r *bucketLocationCache) Set(bucketName string, location string) {
r.Lock()
defer r.Unlock()
r.items[bucketName] = location
}
// Delete deletes a bucket name.
// Delete - Deletes a bucket name from cache.
func (r *bucketLocationCache) Delete(bucketName string) {
r.Lock()
defer r.Unlock()
delete(r.items, bucketName)
}
// getBucketLocation - get location for the bucketName from location map cache.
// getBucketLocation - Get location for the bucketName from location map cache.
func (c Client) getBucketLocation(bucketName string) (string, error) {
// For anonymous requests, default to "us-east-1" and let other calls
// move forward.
@ -101,12 +102,12 @@ func (c Client) getBucketLocation(bucketName string) (string, error) {
}
location := locationConstraint
// location is empty will be 'us-east-1'.
// Location is empty will be 'us-east-1'.
if location == "" {
location = "us-east-1"
}
// location can be 'EU' convert it to meaningful 'eu-west-1'.
// Location can be 'EU' convert it to meaningful 'eu-west-1'.
if location == "EU" {
location = "eu-west-1"
}
@ -118,7 +119,7 @@ func (c Client) getBucketLocation(bucketName string) (string, error) {
return location, nil
}
// getBucketLocationRequest wrapper creates a new getBucketLocation request.
// getBucketLocationRequest - Wrapper creates a new getBucketLocation request.
func (c Client) getBucketLocationRequest(bucketName string) (*http.Request, error) {
// Set location query.
urlValues := make(url.Values)
@ -129,16 +130,16 @@ func (c Client) getBucketLocationRequest(bucketName string) (*http.Request, erro
targetURL.Path = filepath.Join(bucketName, "")
targetURL.RawQuery = urlValues.Encode()
// get a new HTTP request for the method.
// Get a new HTTP request for the method.
req, err := http.NewRequest("GET", targetURL.String(), nil)
if err != nil {
return nil, err
}
// set UserAgent for the request.
// Set UserAgent for the request.
c.setUserAgent(req)
// set sha256 sum for signature calculation only with signature version '4'.
// Set sha256 sum for signature calculation only with signature version '4'.
if c.signature.isV4() {
req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum256([]byte{})))
}

52
Godeps/_workspace/src/github.com/minio/minio-go/common-methods.go generated vendored
View file

@ -1,52 +0,0 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"crypto/hmac"
"crypto/md5"
"crypto/sha256"
"encoding/xml"
"io"
)
// xmlDecoder provide decoded value in xml.
func xmlDecoder(body io.Reader, v interface{}) error {
d := xml.NewDecoder(body)
return d.Decode(v)
}
// sum256 calculate sha256 sum for an input byte array.
func sum256(data []byte) []byte {
hash := sha256.New()
hash.Write(data)
return hash.Sum(nil)
}
// sumMD5 calculate md5 sum for an input byte array.
func sumMD5(data []byte) []byte {
hash := md5.New()
hash.Write(data)
return hash.Sum(nil)
}
// sumHMAC calculate hmac between two input byte array.
func sumHMAC(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}

12
Godeps/_workspace/src/github.com/minio/minio-go/constants.go generated vendored
View file

@ -25,14 +25,18 @@ const minimumPartSize = 1024 * 1024 * 5
// maxParts - maximum parts for a single multipart session.
const maxParts = 10000
// maxPartSize - maximum part size 5GiB for a single multipart upload operation.
// maxPartSize - maximum part size 5GiB for a single multipart upload
// operation.
const maxPartSize = 1024 * 1024 * 1024 * 5
// maxSinglePutObjectSize - maximum size 5GiB of object per PUT operation.
// maxSinglePutObjectSize - maximum size 5GiB of object per PUT
// operation.
const maxSinglePutObjectSize = 1024 * 1024 * 1024 * 5
// maxMultipartPutObjectSize - maximum size 5TiB of object for Multipart operation.
// maxMultipartPutObjectSize - maximum size 5TiB of object for
// Multipart operation.
const maxMultipartPutObjectSize = 1024 * 1024 * 1024 * 1024 * 5
// optimalReadAtBufferSize - optimal buffer 5MiB used for reading through ReadAt operation.
// optimalReadAtBufferSize - optimal buffer 5MiB used for reading
// through ReadAt operation.
const optimalReadAtBufferSize = 1024 * 1024 * 5

26
Godeps/_workspace/src/github.com/minio/minio-go/examples/play/getobject.go generated vendored
View file

@ -29,28 +29,40 @@ import (
func main() {
// Note: my-bucketname, my-objectname and my-testfile are dummy values, please replace them with original values.
// Requests are always secure by default. set inSecure=true to enable insecure access.
// inSecure boolean is the last argument for New().
// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New provides a client object backend by automatically detected signature type based
// on the provider.
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("play.minio.io:9002", "Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG", false)
if err != nil {
log.Fatalln(err)
}
reader, _, err := s3Client.GetObject("my-bucketname", "my-objectname")
reader, err := s3Client.GetObject("my-bucketname", "my-objectname")
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
localfile, err := os.Create("my-testfile")
reader, err := s3Client.GetObject("my-bucketname", "my-objectname")
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
localFile, err := os.Create("my-testfile")
if err != nil {
log.Fatalln(err)
}
defer localfile.Close()
if _, err = io.Copy(localfile, reader); err != nil {
stat, err := reader.Stat()
if err != nil {
log.Fatalln(err)
}
if _, err := io.CopyN(localFile, reader, stat.Size); err != nil {
log.Fatalln(err)
}
}

91
Godeps/_workspace/src/github.com/minio/minio-go/examples/play/getobjectpartial.go generated vendored
View file

@ -1,91 +0,0 @@
// +build ignore
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"errors"
"io"
"log"
"os"
"github.com/minio/minio-go"
)
func main() {
// Note: my-bucketname, my-objectname and my-testfile are dummy values, please replace them with original values.
// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("play.minio.io:9002", "Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG", false)
if err != nil {
log.Fatalln(err)
}
reader, stat, err := s3Client.GetObjectPartial("my-bucketname", "my-objectname")
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
localFile, err := os.OpenFile("my-testfile", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
if err != nil {
log.Fatalln(err)
}
defer localfile.Close()
st, err := localFile.Stat()
if err != nil {
log.Fatalln(err)
}
readAtOffset := st.Size()
readAtBuffer := make([]byte, 5*1024*1024)
// Loop and write.
for {
readAtSize, rerr := reader.ReadAt(readAtBuffer, readAtOffset)
if rerr != nil {
if rerr != io.EOF {
log.Fatalln(rerr)
}
}
writeSize, werr := localFile.Write(readAtBuffer[:readAtSize])
if werr != nil {
log.Fatalln(werr)
}
if readAtSize != writeSize {
log.Fatalln(errors.New("Something really bad happened here."))
}
readAtOffset += int64(writeSize)
if rerr == io.EOF {
break
}
}
// totalWritten size.
totalWritten := readAtOffset
// If found mismatch error out.
if totalWritten != stat.Size {
log.Fatalln(errors.New("Something really bad happened here."))
}
}

3
Godeps/_workspace/src/github.com/minio/minio-go/examples/play/putobject.go generated vendored
View file

@ -44,8 +44,7 @@ func main() {
}
defer object.Close()
st, _ := object.Stat()
n, err := s3Client.PutObject("my-bucketname", "my-objectname", object, st.Size(), "application/octet-stream")
n, err := s3Client.PutObject("my-bucketname", "my-objectname", object, "application/octet-stream")
if err != nil {
log.Fatalln(err)
}

56
Godeps/_workspace/src/github.com/minio/minio-go/examples/play/putobjectpartial.go generated vendored
View file

@ -1,56 +0,0 @@
// +build ignore
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"log"
"os"
"github.com/minio/minio-go"
)
func main() {
// Note: my-bucketname, my-objectname and my-testfile are dummy values, please replace them with original values.
// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("play.minio.io:9002", "Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG", false)
if err != nil {
log.Fatalln(err)
}
localFile, err := os.Open("testfile")
if err != nil {
log.Fatalln(err)
}
st, err := localFile.Stat()
if err != nil {
log.Fatalln(err)
}
defer localFile.Close()
_, err = s3Client.PutObjectPartial("bucket-name", "objectName", localFile, st.Size(), "text/plain")
if err != nil {
log.Fatalln(err)
}
}

14
Godeps/_workspace/src/github.com/minio/minio-go/examples/s3/getobject.go generated vendored
View file

@ -35,23 +35,29 @@ func main() {
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", false)
s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESS-KEY-HERE", "YOUR-SECRET-KEY-HERE", false)
if err != nil {
log.Fatalln(err)
}
reader, _, err := s3Client.GetObject("my-bucketname", "my-objectname")
reader, err := s3Client.GetObject("my-bucketname", "my-objectname")
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
localfile, err := os.Create("my-testfile")
localFile, err := os.Create("my-testfile")
if err != nil {
log.Fatalln(err)
}
defer localfile.Close()
if _, err = io.Copy(localfile, reader); err != nil {
stat, err := reader.Stat()
if err != nil {
log.Fatalln(err)
}
if _, err := io.CopyN(localFile, reader, stat.Size); err != nil {
log.Fatalln(err)
}
}

92
Godeps/_workspace/src/github.com/minio/minio-go/examples/s3/getobjectpartial.go generated vendored
View file

@ -1,92 +0,0 @@
// +build ignore
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"errors"
"io"
"log"
"os"
"github.com/minio/minio-go"
)
func main() {
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname, my-objectname and
// my-testfile are dummy values, please replace them with original values.
// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESS-KEY-HERE", "YOUR-SECRET-KEY-HERE", false)
if err != nil {
log.Fatalln(err)
}
reader, stat, err := s3Client.GetObjectPartial("my-bucketname", "my-objectname")
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
localFile, err := os.OpenFile("my-testfile", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
if err != nil {
log.Fatalln(err)
}
defer localfile.Close()
st, err := localFile.Stat()
if err != nil {
log.Fatalln(err)
}
readAtOffset := st.Size()
readAtBuffer := make([]byte, 5*1024*1024)
// For loop.
for {
readAtSize, rerr := reader.ReadAt(readAtBuffer, readAtOffset)
if rerr != nil {
if rerr != io.EOF {
log.Fatalln(rerr)
}
}
writeSize, werr := localFile.Write(readAtBuffer[:readAtSize])
if werr != nil {
log.Fatalln(werr)
}
if readAtSize != writeSize {
log.Fatalln(errors.New("Something really bad happened here."))
}
readAtOffset += int64(writeSize)
if rerr == io.EOF {
break
}
}
// totalWritten size.
totalWritten := readAtOffset
// If found mismatch error out.
if totalWritten != stat.Size {
log.Fatalln(errors.New("Something really bad happened here."))
}
}

3
Godeps/_workspace/src/github.com/minio/minio-go/examples/s3/putobject.go generated vendored
View file

@ -45,8 +45,7 @@ func main() {
}
defer object.Close()
st, _ := object.Stat()
n, err := s3Client.PutObject("my-bucketname", "my-objectname", object, st.Size(), "application/octet-stream")
n, err := s3Client.PutObject("my-bucketname", "my-objectname", object, "application/octet-stream")
if err != nil {
log.Fatalln(err)
}

57
Godeps/_workspace/src/github.com/minio/minio-go/examples/s3/putobjectpartial.go generated vendored
View file

@ -1,57 +0,0 @@
// +build ignore
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"log"
"os"
"github.com/minio/minio-go"
)
func main() {
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname, my-objectname and
// my-testfile are dummy values, please replace them with original values.
// Requests are always secure (HTTPS) by default. Set insecure=true to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New returns an Amazon S3 compatible client object. API copatibality (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", false)
if err != nil {
log.Fatalln(err)
}
localFile, err := os.Open("my-testfile")
if err != nil {
log.Fatalln(err)
}
st, err := localFile.Stat()
if err != nil {
log.Fatalln(err)
}
defer localFile.Close()
_, err = s3Client.PutObjectPartial("my-bucketname", "my-objectname", localFile, st.Size(), "text/plain")
if err != nil {
log.Fatalln(err)
}
}

57
Godeps/_workspace/src/github.com/minio/minio-go/post-policy.go generated vendored
View file

@ -2,7 +2,6 @@ package minio
import (
"encoding/base64"
"errors"
"fmt"
"strings"
"time"
@ -11,7 +10,8 @@ import (
// expirationDateFormat date format for expiration key in json policy.
const expirationDateFormat = "2006-01-02T15:04:05.999Z"
// policyCondition explanation: http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html
// policyCondition explanation:
// http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html
//
// Example:
//
@ -27,11 +27,15 @@ type policyCondition struct {
value string
}
// PostPolicy provides strict static type conversion and validation for Amazon S3's POST policy JSON string.
// PostPolicy - Provides strict static type conversion and validation
// for Amazon S3's POST policy JSON string.
type PostPolicy struct {
expiration time.Time // expiration date and time of the POST policy.
conditions []policyCondition // collection of different policy conditions.
// contentLengthRange minimum and maximum allowable size for the uploaded content.
// Expiration date and time of the POST policy.
expiration time.Time
// Collection of different policy conditions.
conditions []policyCondition
// ContentLengthRange minimum and maximum allowable size for the
// uploaded content.
contentLengthRange struct {
min int64
max int64
@ -41,7 +45,7 @@ type PostPolicy struct {
formData map[string]string
}
// NewPostPolicy instantiate new post policy.
// NewPostPolicy - Instantiate new post policy.
func NewPostPolicy() *PostPolicy {
p := &PostPolicy{}
p.conditions = make([]policyCondition, 0)
@ -49,19 +53,19 @@ func NewPostPolicy() *PostPolicy {
return p
}
// SetExpires expiration time.
// SetExpires - Sets expiration time for the new policy.
func (p *PostPolicy) SetExpires(t time.Time) error {
if t.IsZero() {
return errors.New("No expiry time set.")
return ErrInvalidArgument("No expiry time set.")
}
p.expiration = t
return nil
}
// SetKey Object name.
// SetKey - Sets an object name for the policy based upload.
func (p *PostPolicy) SetKey(key string) error {
if strings.TrimSpace(key) == "" || key == "" {
return errors.New("Object name is not specified.")
return ErrInvalidArgument("Object name is empty.")
}
policyCond := policyCondition{
matchType: "eq",
@ -75,10 +79,11 @@ func (p *PostPolicy) SetKey(key string) error {
return nil
}
// SetKeyStartsWith Object name that can start with.
// SetKeyStartsWith - Sets an object name that an policy based upload
// can start with.
func (p *PostPolicy) SetKeyStartsWith(keyStartsWith string) error {
if strings.TrimSpace(keyStartsWith) == "" || keyStartsWith == "" {
return errors.New("Object prefix is not specified.")
return ErrInvalidArgument("Object prefix is empty.")
}
policyCond := policyCondition{
matchType: "starts-with",
@ -92,10 +97,10 @@ func (p *PostPolicy) SetKeyStartsWith(keyStartsWith string) error {
return nil
}
// SetBucket bucket name.
// SetBucket - Sets bucket at which objects will be uploaded to.
func (p *PostPolicy) SetBucket(bucketName string) error {
if strings.TrimSpace(bucketName) == "" || bucketName == "" {
return errors.New("Bucket name is not specified.")
return ErrInvalidArgument("Bucket name is empty.")
}
policyCond := policyCondition{
matchType: "eq",
@ -109,10 +114,11 @@ func (p *PostPolicy) SetBucket(bucketName string) error {
return nil
}
// SetContentType content-type.
// SetContentType - Sets content-type of the object for this policy
// based upload.
func (p *PostPolicy) SetContentType(contentType string) error {
if strings.TrimSpace(contentType) == "" || contentType == "" {
return errors.New("No content type specified.")
return ErrInvalidArgument("No content type specified.")
}
policyCond := policyCondition{
matchType: "eq",
@ -126,16 +132,17 @@ func (p *PostPolicy) SetContentType(contentType string) error {
return nil
}
// SetContentLengthRange - set new min and max content length condition.
// SetContentLengthRange - Set new min and max content length
// condition for all incoming uploads.
func (p *PostPolicy) SetContentLengthRange(min, max int64) error {
if min > max {
return errors.New("minimum limit is larger than maximum limit")
return ErrInvalidArgument("Minimum limit is larger than maximum limit.")
}
if min < 0 {
return errors.New("minimum limit cannot be negative")
return ErrInvalidArgument("Minimum limit cannot be negative.")
}
if max < 0 {
return errors.New("maximum limit cannot be negative")
return ErrInvalidArgument("Maximum limit cannot be negative.")
}
p.contentLengthRange.min = min
p.contentLengthRange.max = max
@ -145,18 +152,18 @@ func (p *PostPolicy) SetContentLengthRange(min, max int64) error {
// addNewPolicy - internal helper to validate adding new policies.
func (p *PostPolicy) addNewPolicy(policyCond policyCondition) error {
if policyCond.matchType == "" || policyCond.condition == "" || policyCond.value == "" {
return errors.New("Policy fields empty.")
return ErrInvalidArgument("Policy fields are empty.")
}
p.conditions = append(p.conditions, policyCond)
return nil
}
// Stringer interface for printing in pretty manner.
// Stringer interface for printing policy in json formatted string.
func (p PostPolicy) String() string {
return string(p.marshalJSON())
}
// marshalJSON provides Marshalled JSON.
// marshalJSON - Provides Marshalled JSON in bytes.
func (p PostPolicy) marshalJSON() []byte {
expirationStr := `"expiration":"` + p.expiration.Format(expirationDateFormat) + `"`
var conditionsStr string
@ -178,7 +185,7 @@ func (p PostPolicy) marshalJSON() []byte {
return []byte(retStr)
}
// base64 produces base64 of PostPolicy's Marshalled json.
// base64 - Produces base64 of PostPolicy's Marshalled json.
func (p PostPolicy) base64() string {
return base64.StdEncoding.EncodeToString(p.marshalJSON())
}

40
Godeps/_workspace/src/github.com/minio/minio-go/request-signature-v2.go generated vendored
View file

@ -30,7 +30,7 @@ import (
"time"
)
// signature and API related constants.
// Signature and API related constants.
const (
signV2Algorithm = "AWS"
)
@ -55,14 +55,14 @@ func encodeURL2Path(u *url.URL) (path string) {
}
// PreSignV2 - presign the request in following style.
// https://${S3_BUCKET}.s3.amazonaws.com/${S3_OBJECT}?AWSAccessKeyId=${S3_ACCESS_KEY}&Expires=${TIMESTAMP}&Signature=${SIGNATURE}
// https://${S3_BUCKET}.s3.amazonaws.com/${S3_OBJECT}?AWSAccessKeyId=${S3_ACCESS_KEY}&Expires=${TIMESTAMP}&Signature=${SIGNATURE}.
func PreSignV2(req http.Request, accessKeyID, secretAccessKey string, expires int64) *http.Request {
// presign is a noop for anonymous credentials.
// Presign is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return nil
return &req
}
d := time.Now().UTC()
// Add date if not present
// Add date if not present.
if date := req.Header.Get("Date"); date == "" {
req.Header.Set("Date", d.Format(http.TimeFormat))
}
@ -73,12 +73,12 @@ func PreSignV2(req http.Request, accessKeyID, secretAccessKey string, expires in
// Find epoch expires when the request will expire.
epochExpires := d.Unix() + expires
// get string to sign.
// Get string to sign.
stringToSign := fmt.Sprintf("%s\n\n\n%d\n%s", req.Method, epochExpires, path)
hm := hmac.New(sha1.New, []byte(secretAccessKey))
hm.Write([]byte(stringToSign))
// calculate signature.
// Calculate signature.
signature := base64.StdEncoding.EncodeToString(hm.Sum(nil))
query := req.URL.Query()
@ -98,7 +98,8 @@ func PreSignV2(req http.Request, accessKeyID, secretAccessKey string, expires in
return &req
}
// PostPresignSignatureV2 - presigned signature for PostPolicy request
// PostPresignSignatureV2 - presigned signature for PostPolicy
// request.
func PostPresignSignatureV2(policyBase64, secretAccessKey string) string {
hm := hmac.New(sha1.New, []byte(secretAccessKey))
hm.Write([]byte(policyBase64))
@ -124,6 +125,11 @@ func PostPresignSignatureV2(policyBase64, secretAccessKey string) string {
// SignV2 sign the request before Do() (AWS Signature Version 2).
func SignV2(req http.Request, accessKeyID, secretAccessKey string) *http.Request {
// Signature calculation is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return &req
}
// Initial time.
d := time.Now().UTC()
@ -160,11 +166,11 @@ func SignV2(req http.Request, accessKeyID, secretAccessKey string) *http.Request
// CanonicalizedResource;
func getStringToSignV2(req http.Request) string {
buf := new(bytes.Buffer)
// write standard headers.
// Write standard headers.
writeDefaultHeaders(buf, req)
// write canonicalized protocol headers if any.
// Write canonicalized protocol headers if any.
writeCanonicalizedHeaders(buf, req)
// write canonicalized Query resources if any.
// Write canonicalized Query resources if any.
writeCanonicalizedResource(buf, req)
return buf.String()
}
@ -186,7 +192,7 @@ func writeCanonicalizedHeaders(buf *bytes.Buffer, req http.Request) {
var protoHeaders []string
vals := make(map[string][]string)
for k, vv := range req.Header {
// all the AMZ and GOOG headers should be lowercase
// All the AMZ headers should be lowercase
lk := strings.ToLower(k)
if strings.HasPrefix(lk, "x-amz") {
protoHeaders = append(protoHeaders, lk)
@ -246,6 +252,7 @@ var resourceList = []string{
// <HTTP-Request-URI, from the protocol name up to the query string> +
// [ sub-resource, if present. For example "?acl", "?location", "?logging", or "?torrent"];
func writeCanonicalizedResource(buf *bytes.Buffer, req http.Request) error {
// Save request URL.
requestURL := req.URL
// Get encoded URL path.
@ -256,20 +263,21 @@ func writeCanonicalizedResource(buf *bytes.Buffer, req http.Request) error {
if requestURL.RawQuery != "" {
var n int
vals, _ := url.ParseQuery(requestURL.RawQuery)
// loop through all the supported resourceList.
// Verify if any sub resource queries are present, if yes
// canonicallize them.
for _, resource := range resourceList {
if vv, ok := vals[resource]; ok && len(vv) > 0 {
n++
// first element
// First element
switch n {
case 1:
buf.WriteByte('?')
// the rest
// The rest
default:
buf.WriteByte('&')
}
buf.WriteString(resource)
// request parameters
// Request parameters
if len(vv[0]) > 0 {
buf.WriteByte('=')
buf.WriteString(url.QueryEscape(vv[0]))

87
Godeps/_workspace/src/github.com/minio/minio-go/request-signature-v4.go generated vendored
View file

@ -26,7 +26,7 @@ import (
"time"
)
// signature and API related constants.
// Signature and API related constants.
const (
signV4Algorithm = "AWS4-HMAC-SHA256"
iso8601DateFormat = "20060102T150405Z"
@ -34,28 +34,35 @@ const (
)
///
/// Excerpts from @lsegal - https://github.com/aws/aws-sdk-js/issues/659#issuecomment-120477258.
/// Excerpts from @lsegal -
/// https://github.com/aws/aws-sdk-js/issues/659#issuecomment-120477258.
///
/// User-Agent:
///
/// This is ignored from signing because signing this causes problems with generating pre-signed URLs
/// (that are executed by other agents) or when customers pass requests through proxies, which may
/// modify the user-agent.
/// This is ignored from signing because signing this causes
/// problems with generating pre-signed URLs (that are executed
/// by other agents) or when customers pass requests through
/// proxies, which may modify the user-agent.
///
/// Content-Length:
///
/// This is ignored from signing because generating a pre-signed URL should not provide a content-length
/// constraint, specifically when vending a S3 pre-signed PUT URL. The corollary to this is that when
/// sending regular requests (non-pre-signed), the signature contains a checksum of the body, which
/// implicitly validates the payload length (since changing the number of bytes would change the checksum)
/// This is ignored from signing because generating a pre-signed
/// URL should not provide a content-length constraint,
/// specifically when vending a S3 pre-signed PUT URL. The
/// corollary to this is that when sending regular requests
/// (non-pre-signed), the signature contains a checksum of the
/// body, which implicitly validates the payload length (since
/// changing the number of bytes would change the checksum)
/// and therefore this header is not valuable in the signature.
///
/// Content-Type:
///
/// Signing this header causes quite a number of problems in browser environments, where browsers
/// like to modify and normalize the content-type header in different ways. There is more information
/// on this in https://github.com/aws/aws-sdk-js/issues/244. Avoiding this field simplifies logic
/// and reduces the possibility of future bugs
/// Signing this header causes quite a number of problems in
/// browser environments, where browsers like to modify and
/// normalize the content-type header in different ways. There is
/// more information on this in https://goo.gl/2E9gyy. Avoiding
/// this field simplifies logic and reduces the possibility of
/// future bugs.
///
/// Authorization:
///
@ -68,7 +75,7 @@ var ignoredHeaders = map[string]bool{
"User-Agent": true,
}
// getSigningKey hmac seed to calculate final signature
// getSigningKey hmac seed to calculate final signature.
func getSigningKey(secret, loc string, t time.Time) []byte {
date := sumHMAC([]byte("AWS4"+secret), []byte(t.Format(yyyymmdd)))
location := sumHMAC(date, []byte(loc))
@ -77,12 +84,13 @@ func getSigningKey(secret, loc string, t time.Time) []byte {
return signingKey
}
// getSignature final signature in hexadecimal form
// getSignature final signature in hexadecimal form.
func getSignature(signingKey []byte, stringToSign string) string {
return hex.EncodeToString(sumHMAC(signingKey, []byte(stringToSign)))
}
// getScope generate a string of a specific date, an AWS region, and a service
// getScope generate a string of a specific date, an AWS region, and a
// service.
func getScope(location string, t time.Time) string {
scope := strings.Join([]string{
t.Format(yyyymmdd),
@ -93,13 +101,14 @@ func getScope(location string, t time.Time) string {
return scope
}
// getCredential generate a credential string
// getCredential generate a credential string.
func getCredential(accessKeyID, location string, t time.Time) string {
scope := getScope(location, t)
return accessKeyID + "/" + scope
}
// getHashedPayload get the hexadecimal value of the SHA256 hash of the request payload
// getHashedPayload get the hexadecimal value of the SHA256 hash of
// the request payload.
func getHashedPayload(req http.Request) string {
hashedPayload := req.Header.Get("X-Amz-Content-Sha256")
if hashedPayload == "" {
@ -109,7 +118,8 @@ func getHashedPayload(req http.Request) string {
return hashedPayload
}
// getCanonicalHeaders generate a list of request headers for signature.
// getCanonicalHeaders generate a list of request headers for
// signature.
func getCanonicalHeaders(req http.Request) string {
var headers []string
vals := make(map[string][]string)
@ -124,6 +134,8 @@ func getCanonicalHeaders(req http.Request) string {
sort.Strings(headers)
var buf bytes.Buffer
// Save all the headers in canonical form <header>:<value> newline
// separated for each header.
for _, k := range headers {
buf.WriteString(k)
buf.WriteByte(':')
@ -145,12 +157,13 @@ func getCanonicalHeaders(req http.Request) string {
}
// getSignedHeaders generate all signed request headers.
// i.e alphabetically sorted, semicolon-separated list of lowercase request header names
// i.e lexically sorted, semicolon-separated list of lowercase
// request header names.
func getSignedHeaders(req http.Request) string {
var headers []string
for k := range req.Header {
if _, ok := ignoredHeaders[http.CanonicalHeaderKey(k)]; ok {
continue // ignored header
continue // Ignored header found continue.
}
headers = append(headers, strings.ToLower(k))
}
@ -168,7 +181,6 @@ func getSignedHeaders(req http.Request) string {
// <CanonicalHeaders>\n
// <SignedHeaders>\n
// <HashedPayload>
//
func getCanonicalRequest(req http.Request) string {
req.URL.RawQuery = strings.Replace(req.URL.Query().Encode(), "+", "%20", -1)
canonicalRequest := strings.Join([]string{
@ -193,20 +205,21 @@ func getStringToSignV4(t time.Time, location, canonicalRequest string) string {
// PreSignV4 presign the request, in accordance with
// http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html.
func PreSignV4(req http.Request, accessKeyID, secretAccessKey, location string, expires int64) *http.Request {
// presign is a noop for anonymous credentials.
// Presign is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return nil
return &req
}
// Initial time.
t := time.Now().UTC()
// get credential string.
// Get credential string.
credential := getCredential(accessKeyID, location, t)
// Get all signed headers.
signedHeaders := getSignedHeaders(req)
// set URL query.
// Set URL query.
query := req.URL.Query()
query.Set("X-Amz-Algorithm", signV4Algorithm)
query.Set("X-Amz-Date", t.Format(iso8601DateFormat))
@ -221,10 +234,10 @@ func PreSignV4(req http.Request, accessKeyID, secretAccessKey, location string,
// Get string to sign from canonical request.
stringToSign := getStringToSignV4(t, location, canonicalRequest)
// get hmac signing key.
// Gext hmac signing key.
signingKey := getSigningKey(secretAccessKey, location, t)
// calculate signature.
// Calculate signature.
signature := getSignature(signingKey, stringToSign)
// Add signature header to RawQuery.
@ -233,9 +246,12 @@ func PreSignV4(req http.Request, accessKeyID, secretAccessKey, location string,
return &req
}
// PostPresignSignatureV4 - presigned signature for PostPolicy requests.
// PostPresignSignatureV4 - presigned signature for PostPolicy
// requests.
func PostPresignSignatureV4(policyBase64 string, t time.Time, secretAccessKey, location string) string {
// Get signining key.
signingkey := getSigningKey(secretAccessKey, location, t)
// Calculate signature.
signature := getSignature(signingkey, policyBase64)
return signature
}
@ -243,6 +259,11 @@ func PostPresignSignatureV4(policyBase64 string, t time.Time, secretAccessKey, l
// SignV4 sign the request before Do(), in accordance with
// http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html.
func SignV4(req http.Request, accessKeyID, secretAccessKey, location string) *http.Request {
// Signature calculation is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return &req
}
// Initial time.
t := time.Now().UTC()
@ -255,19 +276,19 @@ func SignV4(req http.Request, accessKeyID, secretAccessKey, location string) *ht
// Get string to sign from canonical request.
stringToSign := getStringToSignV4(t, location, canonicalRequest)
// get hmac signing key.
// Get hmac signing key.
signingKey := getSigningKey(secretAccessKey, location, t)
// get credential string.
// Get credential string.
credential := getCredential(accessKeyID, location, t)
// Get all signed headers.
signedHeaders := getSignedHeaders(req)
// calculate signature.
// Calculate signature.
signature := getSignature(signingKey, stringToSign)
// if regular request, construct the final authorization header.
// If regular request, construct the final authorization header.
parts := []string{
signV4Algorithm + " Credential=" + credential,
"SignedHeaders=" + signedHeaders,

16
Godeps/_workspace/src/github.com/minio/minio-go/signature-type.go generated vendored
View file

@ -1,3 +1,19 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
// SignatureType is type of Authorization requested for a given HTTP request.

2
Godeps/_workspace/src/github.com/minio/minio-go/tempfile.go generated vendored
View file

@ -37,7 +37,7 @@ func newTempFile(prefix string) (*tempFile, error) {
}
return &tempFile{
File: file,
mutex: new(sync.Mutex),
mutex: &sync.Mutex{},
}, nil
}

24
Godeps/_workspace/src/github.com/minio/minio-go/utils.go generated vendored
View file

@ -17,7 +17,10 @@
package minio
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"encoding/xml"
"io"
"io/ioutil"
"net"
@ -29,6 +32,26 @@ import (
"unicode/utf8"
)
// xmlDecoder provide decoded value in xml.
func xmlDecoder(body io.Reader, v interface{}) error {
d := xml.NewDecoder(body)
return d.Decode(v)
}
// sum256 calculate sha256 sum for an input byte array.
func sum256(data []byte) []byte {
hash := sha256.New()
hash.Write(data)
return hash.Sum(nil)
}
// sumHMAC calculate hmac between two input byte array.
func sumHMAC(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}
// isPartUploaded - true if part is already uploaded.
func isPartUploaded(objPart objectPart, objectParts map[int]objectPart) (isUploaded bool) {
_, isUploaded = objectParts[objPart.PartNumber]
@ -261,7 +284,6 @@ func isValidObjectPrefix(objectPrefix string) error {
// - if input object size is -1 then return maxPartSize.
// - if it happens to be that partSize is indeed bigger
// than the maximum part size just return maxPartSize.
//
func optimalPartSize(objectSize int64) int64 {
// if object size is -1 choose part size as 5GiB.
if objectSize == -1 {