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Signed-off-by: Roman Loginov <r.loginov@yadro.com>
872 lines
24 KiB
Go
872 lines
24 KiB
Go
package handler
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import (
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"bytes"
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"crypto/md5"
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"encoding/base64"
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"encoding/json"
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"encoding/xml"
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errorsStd "errors"
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"fmt"
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"io"
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"net"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
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"go.uber.org/zap"
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)
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type postPolicy struct {
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Expiration time.Time `json:"expiration"`
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Conditions []*policyCondition `json:"conditions"`
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empty bool
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}
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func (p *postPolicy) condition(key string) *policyCondition {
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for _, condition := range p.Conditions {
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if condition.Key == key {
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return condition
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}
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}
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return nil
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}
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func (p *postPolicy) CheckContentLength(size uint64) bool {
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if p.empty {
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return true
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}
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for _, condition := range p.Conditions {
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if condition.Matching == "content-length-range" {
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length := strconv.FormatUint(size, 10)
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return condition.Key <= length && length <= condition.Value
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}
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}
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return true
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}
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func (p *policyCondition) match(value string) bool {
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switch p.Matching {
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case "eq":
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p.Matched = p.Value == value
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case "starts-with":
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if p.Key == api.ContentType {
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p.Matched = true
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for _, contentType := range strings.Split(value, ",") {
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if !strings.HasPrefix(contentType, p.Value) {
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p.Matched = false
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}
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}
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} else {
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p.Matched = strings.HasPrefix(value, p.Value)
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}
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}
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return p.Matched
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}
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func (p *postPolicy) CheckField(key string, value string) error {
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if p.empty {
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return nil
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}
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cond := p.condition(key)
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if cond == nil {
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return errors.GetAPIError(errors.ErrPostPolicyConditionInvalidFormat)
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}
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if !cond.match(value) {
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return errors.GetAPIError(errors.ErrPostPolicyConditionInvalidFormat)
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}
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return nil
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}
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func (p *postPolicy) AllConditionMatched() bool {
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for _, condition := range p.Conditions {
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if !condition.Matched {
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return false
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}
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}
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return true
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}
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type policyCondition struct {
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Matching string
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Key string
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Value string
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Matched bool
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}
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var errInvalidCondition = fmt.Errorf("invalid condition")
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func (p *policyCondition) UnmarshalJSON(data []byte) error {
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var (
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ok bool
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v interface{}
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)
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if err := json.Unmarshal(data, &v); err != nil {
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return fmt.Errorf("unmarshal policy condition: %w", err)
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}
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switch v := v.(type) {
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case []interface{}:
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if len(v) != 3 {
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return errInvalidCondition
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}
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if p.Matching, ok = v[0].(string); !ok {
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return errInvalidCondition
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}
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if p.Matching == "content-length-range" {
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min, ok := v[1].(float64)
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max, ok2 := v[2].(float64)
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if !ok || !ok2 {
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return errInvalidCondition
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}
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p.Key = strconv.FormatFloat(min, 'f', 0, 32)
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p.Value = strconv.FormatFloat(max, 'f', 0, 32)
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} else {
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key, ok2 := v[1].(string)
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p.Value, ok = v[2].(string)
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if !ok || !ok2 {
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return errInvalidCondition
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}
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p.Key = strings.ToLower(strings.TrimPrefix(key, "$"))
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}
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case map[string]interface{}:
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p.Matching = "eq"
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for key, val := range v {
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p.Key = strings.ToLower(key)
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if p.Value, ok = val.(string); !ok {
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return errInvalidCondition
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}
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}
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default:
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return fmt.Errorf("unknown condition type")
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}
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return nil
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}
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// keywords of predefined basic ACL values.
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const (
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basicACLPrivate = "private"
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basicACLReadOnly = "public-read"
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basicACLPublic = "public-read-write"
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cannedACLAuthRead = "authenticated-read"
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)
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type createBucketParams struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CreateBucketConfiguration" json:"-"`
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LocationConstraint string
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}
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func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
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var (
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err error
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newEaclTable *eacl.Table
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sessionTokenEACL *session.Container
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containsACL = containsACLHeaders(r)
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ctx = r.Context()
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reqInfo = middleware.GetReqInfo(ctx)
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)
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if containsACL {
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if sessionTokenEACL, err = getSessionTokenSetEACL(r.Context()); err != nil {
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h.logAndSendError(w, "could not get eacl session token from a box", reqInfo, err)
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return
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}
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}
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tagSet, err := parseTaggingHeader(r.Header)
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if err != nil {
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h.logAndSendError(w, "could not parse tagging header", reqInfo, err)
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return
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}
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bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
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if err != nil {
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h.logAndSendError(w, "could not get bucket objInfo", reqInfo, err)
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return
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}
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metadata := parseMetadata(r)
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if contentType := r.Header.Get(api.ContentType); len(contentType) > 0 {
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metadata[api.ContentType] = contentType
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}
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if cacheControl := r.Header.Get(api.CacheControl); len(cacheControl) > 0 {
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metadata[api.CacheControl] = cacheControl
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}
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if expires := r.Header.Get(api.Expires); len(expires) > 0 {
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metadata[api.Expires] = expires
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}
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encryptionParams, err := formEncryptionParams(r)
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if err != nil {
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h.logAndSendError(w, "invalid sse headers", reqInfo, err)
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return
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}
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body, err := h.getBodyReader(r)
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if err != nil {
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h.logAndSendError(w, "failed to get body reader", reqInfo, err)
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return
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}
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if encodings := r.Header.Get(api.ContentEncoding); len(encodings) > 0 {
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metadata[api.ContentEncoding] = encodings
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}
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var size uint64
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if r.ContentLength > 0 {
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size = uint64(r.ContentLength)
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}
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params := &layer.PutObjectParams{
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BktInfo: bktInfo,
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Object: reqInfo.ObjectName,
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Reader: body,
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Size: size,
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Header: metadata,
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Encryption: encryptionParams,
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}
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params.CopiesNumbers, err = h.pickCopiesNumbers(metadata, bktInfo.LocationConstraint)
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if err != nil {
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h.logAndSendError(w, "invalid copies number", reqInfo, err)
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return
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}
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settings, err := h.obj.GetBucketSettings(ctx, bktInfo)
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if err != nil {
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h.logAndSendError(w, "could not get bucket settings", reqInfo, err)
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return
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}
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params.Lock, err = formObjectLock(ctx, bktInfo, settings.LockConfiguration, r.Header)
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if err != nil {
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h.logAndSendError(w, "could not form object lock", reqInfo, err)
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return
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}
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extendedObjInfo, err := h.obj.PutObject(ctx, params)
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if err != nil {
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_, err2 := io.Copy(io.Discard, body)
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err3 := body.Close()
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h.logAndSendError(w, "could not upload object", reqInfo, err, zap.Errors("body close errors", []error{err2, err3}))
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return
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}
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objInfo := extendedObjInfo.ObjectInfo
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s := &SendNotificationParams{
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Event: EventObjectCreatedPut,
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NotificationInfo: data.NotificationInfoFromObject(objInfo),
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BktInfo: bktInfo,
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ReqInfo: reqInfo,
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}
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if err = h.sendNotifications(ctx, s); err != nil {
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h.reqLogger(ctx).Error(logs.CouldntSendNotification, zap.Error(err))
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}
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if containsACL {
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if newEaclTable, err = h.getNewEAclTable(r, bktInfo, objInfo); err != nil {
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h.logAndSendError(w, "could not get new eacl table", reqInfo, err)
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return
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}
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}
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if tagSet != nil {
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tagPrm := &layer.PutObjectTaggingParams{
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ObjectVersion: &layer.ObjectVersion{
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BktInfo: bktInfo,
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ObjectName: objInfo.Name,
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VersionID: objInfo.VersionID(),
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},
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TagSet: tagSet,
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NodeVersion: extendedObjInfo.NodeVersion,
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}
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if _, err = h.obj.PutObjectTagging(r.Context(), tagPrm); err != nil {
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h.logAndSendError(w, "could not upload object tagging", reqInfo, err)
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return
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}
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}
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if newEaclTable != nil {
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p := &layer.PutBucketACLParams{
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BktInfo: bktInfo,
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EACL: newEaclTable,
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SessionToken: sessionTokenEACL,
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}
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if err = h.obj.PutBucketACL(r.Context(), p); err != nil {
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h.logAndSendError(w, "could not put bucket acl", reqInfo, err)
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return
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}
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}
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if settings.VersioningEnabled() {
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w.Header().Set(api.AmzVersionID, objInfo.VersionID())
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}
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if encryptionParams.Enabled() {
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addSSECHeaders(w.Header(), r.Header)
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}
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w.Header().Set(api.ETag, objInfo.HashSum)
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middleware.WriteSuccessResponseHeadersOnly(w)
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}
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func (h *handler) getBodyReader(r *http.Request) (io.ReadCloser, error) {
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if !api.IsSignedStreamingV4(r) {
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return r.Body, nil
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}
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encodings := r.Header.Values(api.ContentEncoding)
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var chunkedEncoding bool
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resultContentEncoding := make([]string, 0, len(encodings))
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for _, enc := range encodings {
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for _, e := range strings.Split(enc, ",") {
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e = strings.TrimSpace(e)
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if e == api.AwsChunked { // probably we should also check position of this header value
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chunkedEncoding = true
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} else {
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resultContentEncoding = append(resultContentEncoding, e)
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}
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}
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}
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r.Header.Set(api.ContentEncoding, strings.Join(resultContentEncoding, ","))
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if !chunkedEncoding && !h.cfg.Kludge.BypassContentEncodingInChunks() {
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return nil, fmt.Errorf("%w: request is not chunk encoded, encodings '%s'",
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errors.GetAPIError(errors.ErrInvalidEncodingMethod), strings.Join(encodings, ","))
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}
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decodeContentSize := r.Header.Get(api.AmzDecodedContentLength)
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if len(decodeContentSize) == 0 {
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return nil, errors.GetAPIError(errors.ErrMissingContentLength)
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}
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if _, err := strconv.Atoi(decodeContentSize); err != nil {
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return nil, fmt.Errorf("%w: parse decoded content length: %s", errors.GetAPIError(errors.ErrMissingContentLength), err.Error())
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}
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chunkReader, err := newSignV4ChunkedReader(r)
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if err != nil {
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return nil, fmt.Errorf("initialize chunk reader: %w", err)
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}
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return chunkReader, nil
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}
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func formEncryptionParams(r *http.Request) (enc encryption.Params, err error) {
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sseCustomerAlgorithm := r.Header.Get(api.AmzServerSideEncryptionCustomerAlgorithm)
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sseCustomerKey := r.Header.Get(api.AmzServerSideEncryptionCustomerKey)
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sseCustomerKeyMD5 := r.Header.Get(api.AmzServerSideEncryptionCustomerKeyMD5)
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if len(sseCustomerAlgorithm) == 0 && len(sseCustomerKey) == 0 && len(sseCustomerKeyMD5) == 0 {
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return
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}
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if r.TLS == nil {
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return enc, errorsStd.New("encryption available only when TLS is enabled")
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}
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if sseCustomerAlgorithm != layer.AESEncryptionAlgorithm {
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return enc, errors.GetAPIError(errors.ErrInvalidEncryptionAlgorithm)
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}
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key, err := base64.StdEncoding.DecodeString(sseCustomerKey)
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if err != nil {
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return enc, errors.GetAPIError(errors.ErrInvalidSSECustomerKey)
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}
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if len(key) != layer.AESKeySize {
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return enc, errors.GetAPIError(errors.ErrInvalidSSECustomerKey)
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}
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keyMD5, err := base64.StdEncoding.DecodeString(sseCustomerKeyMD5)
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if err != nil {
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return enc, errors.GetAPIError(errors.ErrSSECustomerKeyMD5Mismatch)
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}
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md5Sum := md5.Sum(key)
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if !bytes.Equal(md5Sum[:], keyMD5) {
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return enc, errors.GetAPIError(errors.ErrSSECustomerKeyMD5Mismatch)
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}
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params, err := encryption.NewParams(key)
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if err == nil {
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enc = *params
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}
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return enc, err
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}
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func (h *handler) PostObject(w http.ResponseWriter, r *http.Request) {
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var (
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newEaclTable *eacl.Table
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tagSet map[string]string
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sessionTokenEACL *session.Container
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ctx = r.Context()
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reqInfo = middleware.GetReqInfo(ctx)
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metadata = make(map[string]string)
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containsACL = containsACLHeaders(r)
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)
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policy, err := checkPostPolicy(r, reqInfo, metadata)
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if err != nil {
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h.logAndSendError(w, "failed check policy", reqInfo, err)
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return
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}
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if tagging := auth.MultipartFormValue(r, "tagging"); tagging != "" {
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buffer := bytes.NewBufferString(tagging)
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tagSet, err = readTagSet(buffer)
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if err != nil {
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h.logAndSendError(w, "could not read tag set", reqInfo, err)
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return
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}
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}
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if containsACL {
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if sessionTokenEACL, err = getSessionTokenSetEACL(ctx); err != nil {
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h.logAndSendError(w, "could not get eacl session token from a box", reqInfo, err)
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return
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}
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}
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var contentReader io.Reader
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var size uint64
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if content, ok := r.MultipartForm.Value["file"]; ok {
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contentReader = bytes.NewBufferString(content[0])
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size = uint64(len(content[0]))
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} else {
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file, head, err := r.FormFile("file")
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if err != nil {
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h.logAndSendError(w, "could get uploading file", reqInfo, err)
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return
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}
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contentReader = file
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size = uint64(head.Size)
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reqInfo.ObjectName = strings.ReplaceAll(reqInfo.ObjectName, "${filename}", head.Filename)
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}
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if !policy.CheckContentLength(size) {
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h.logAndSendError(w, "invalid content-length", reqInfo, errors.GetAPIError(errors.ErrInvalidArgument))
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return
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}
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bktInfo, err := h.obj.GetBucketInfo(ctx, reqInfo.BucketName)
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if err != nil {
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h.logAndSendError(w, "could not get bucket info", reqInfo, err)
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return
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}
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|
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params := &layer.PutObjectParams{
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BktInfo: bktInfo,
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Object: reqInfo.ObjectName,
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Reader: contentReader,
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Size: size,
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Header: metadata,
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}
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|
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extendedObjInfo, err := h.obj.PutObject(ctx, params)
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if err != nil {
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h.logAndSendError(w, "could not upload object", reqInfo, err)
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return
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}
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objInfo := extendedObjInfo.ObjectInfo
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s := &SendNotificationParams{
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Event: EventObjectCreatedPost,
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NotificationInfo: data.NotificationInfoFromObject(objInfo),
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BktInfo: bktInfo,
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ReqInfo: reqInfo,
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}
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if err = h.sendNotifications(ctx, s); err != nil {
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h.reqLogger(ctx).Error(logs.CouldntSendNotification, zap.Error(err))
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}
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if acl := auth.MultipartFormValue(r, "acl"); acl != "" {
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r.Header.Set(api.AmzACL, acl)
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r.Header.Set(api.AmzGrantFullControl, "")
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r.Header.Set(api.AmzGrantWrite, "")
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r.Header.Set(api.AmzGrantRead, "")
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if newEaclTable, err = h.getNewEAclTable(r, bktInfo, objInfo); err != nil {
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h.logAndSendError(w, "could not get new eacl table", reqInfo, err)
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return
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}
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}
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|
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if tagSet != nil {
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tagPrm := &layer.PutObjectTaggingParams{
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ObjectVersion: &layer.ObjectVersion{
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|
BktInfo: bktInfo,
|
|
ObjectName: objInfo.Name,
|
|
VersionID: objInfo.VersionID(),
|
|
},
|
|
NodeVersion: extendedObjInfo.NodeVersion,
|
|
}
|
|
|
|
if _, err = h.obj.PutObjectTagging(ctx, tagPrm); err != nil {
|
|
h.logAndSendError(w, "could not upload object tagging", reqInfo, err)
|
|
return
|
|
}
|
|
}
|
|
|
|
if newEaclTable != nil {
|
|
p := &layer.PutBucketACLParams{
|
|
BktInfo: bktInfo,
|
|
EACL: newEaclTable,
|
|
SessionToken: sessionTokenEACL,
|
|
}
|
|
|
|
if err = h.obj.PutBucketACL(ctx, p); err != nil {
|
|
h.logAndSendError(w, "could not put bucket acl", reqInfo, err)
|
|
return
|
|
}
|
|
}
|
|
|
|
if settings, err := h.obj.GetBucketSettings(ctx, bktInfo); err != nil {
|
|
h.reqLogger(ctx).Warn(logs.CouldntGetBucketVersioning, zap.String("bucket name", reqInfo.BucketName), zap.Error(err))
|
|
} else if settings.VersioningEnabled() {
|
|
w.Header().Set(api.AmzVersionID, objInfo.VersionID())
|
|
}
|
|
|
|
if redirectURL := auth.MultipartFormValue(r, "success_action_redirect"); redirectURL != "" {
|
|
http.Redirect(w, r, redirectURL, http.StatusTemporaryRedirect)
|
|
return
|
|
}
|
|
status := http.StatusNoContent
|
|
if statusStr := auth.MultipartFormValue(r, "success_action_status"); statusStr != "" {
|
|
switch statusStr {
|
|
case "200":
|
|
status = http.StatusOK
|
|
case "201":
|
|
status = http.StatusCreated
|
|
resp := &PostResponse{
|
|
Bucket: objInfo.Bucket,
|
|
Key: objInfo.Name,
|
|
ETag: objInfo.HashSum,
|
|
}
|
|
w.WriteHeader(status)
|
|
if _, err = w.Write(middleware.EncodeResponse(resp)); err != nil {
|
|
h.logAndSendError(w, "something went wrong", reqInfo, err)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
|
|
w.Header().Set(api.ETag, objInfo.HashSum)
|
|
w.WriteHeader(status)
|
|
}
|
|
|
|
func checkPostPolicy(r *http.Request, reqInfo *middleware.ReqInfo, metadata map[string]string) (*postPolicy, error) {
|
|
policy := &postPolicy{empty: true}
|
|
if policyStr := auth.MultipartFormValue(r, "policy"); policyStr != "" {
|
|
policyData, err := base64.StdEncoding.DecodeString(policyStr)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not decode policy: %w", err)
|
|
}
|
|
if err = json.Unmarshal(policyData, policy); err != nil {
|
|
return nil, fmt.Errorf("could not unmarshal policy: %w", err)
|
|
}
|
|
if policy.Expiration.Before(time.Now()) {
|
|
return nil, fmt.Errorf("policy is expired: %w", errors.GetAPIError(errors.ErrInvalidArgument))
|
|
}
|
|
policy.empty = false
|
|
}
|
|
|
|
for key, v := range r.MultipartForm.Value {
|
|
value := v[0]
|
|
if key == "file" || key == "policy" || key == "x-amz-signature" || strings.HasPrefix(key, "x-ignore-") {
|
|
continue
|
|
}
|
|
if err := policy.CheckField(key, value); err != nil {
|
|
return nil, fmt.Errorf("'%s' form field doesn't match the policy: %w", key, err)
|
|
}
|
|
|
|
prefix := strings.ToLower(api.MetadataPrefix)
|
|
if strings.HasPrefix(key, prefix) {
|
|
metadata[strings.TrimPrefix(key, prefix)] = value
|
|
}
|
|
|
|
if key == "content-type" {
|
|
metadata[api.ContentType] = value
|
|
}
|
|
|
|
if key == "key" {
|
|
reqInfo.ObjectName = value
|
|
}
|
|
}
|
|
|
|
for _, cond := range policy.Conditions {
|
|
if cond.Key == "bucket" {
|
|
if !cond.match(reqInfo.BucketName) {
|
|
return nil, errors.GetAPIError(errors.ErrPostPolicyConditionInvalidFormat)
|
|
}
|
|
}
|
|
}
|
|
|
|
return policy, nil
|
|
}
|
|
|
|
func containsACLHeaders(r *http.Request) bool {
|
|
return r.Header.Get(api.AmzACL) != "" || r.Header.Get(api.AmzGrantRead) != "" ||
|
|
r.Header.Get(api.AmzGrantFullControl) != "" || r.Header.Get(api.AmzGrantWrite) != ""
|
|
}
|
|
|
|
func (h *handler) getNewEAclTable(r *http.Request, bktInfo *data.BucketInfo, objInfo *data.ObjectInfo) (*eacl.Table, error) {
|
|
var newEaclTable *eacl.Table
|
|
key, err := h.bearerTokenIssuerKey(r.Context())
|
|
if err != nil {
|
|
return nil, fmt.Errorf("get bearer token issuer: %w", err)
|
|
}
|
|
objectACL, err := parseACLHeaders(r.Header, key)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not parse object acl: %w", err)
|
|
}
|
|
|
|
resInfo := &resourceInfo{
|
|
Bucket: objInfo.Bucket,
|
|
Object: objInfo.Name,
|
|
Version: objInfo.VersionID(),
|
|
}
|
|
|
|
bktPolicy, err := aclToPolicy(objectACL, resInfo)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not translate object acl to bucket policy: %w", err)
|
|
}
|
|
|
|
astChild, err := policyToAst(bktPolicy)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not translate policy to ast: %w", err)
|
|
}
|
|
|
|
bacl, err := h.obj.GetBucketACL(r.Context(), bktInfo)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not get bucket eacl: %w", err)
|
|
}
|
|
|
|
parentAst := tableToAst(bacl.EACL, objInfo.Bucket)
|
|
strCID := bacl.Info.CID.EncodeToString()
|
|
|
|
for _, resource := range parentAst.Resources {
|
|
if resource.Bucket == strCID {
|
|
resource.Bucket = objInfo.Bucket
|
|
}
|
|
}
|
|
|
|
if resAst, updated := mergeAst(parentAst, astChild); updated {
|
|
if newEaclTable, err = astToTable(resAst); err != nil {
|
|
return nil, fmt.Errorf("could not translate ast to table: %w", err)
|
|
}
|
|
}
|
|
|
|
return newEaclTable, nil
|
|
}
|
|
|
|
func parseTaggingHeader(header http.Header) (map[string]string, error) {
|
|
var tagSet map[string]string
|
|
if tagging := header.Get(api.AmzTagging); len(tagging) > 0 {
|
|
queries, err := url.ParseQuery(tagging)
|
|
if err != nil {
|
|
return nil, errors.GetAPIError(errors.ErrInvalidArgument)
|
|
}
|
|
if len(queries) > maxTags {
|
|
return nil, errors.GetAPIError(errors.ErrInvalidTagsSizeExceed)
|
|
}
|
|
tagSet = make(map[string]string, len(queries))
|
|
for k, v := range queries {
|
|
tag := Tag{Key: k, Value: v[0]}
|
|
if err = checkTag(tag); err != nil {
|
|
return nil, err
|
|
}
|
|
tagSet[tag.Key] = tag.Value
|
|
}
|
|
}
|
|
return tagSet, nil
|
|
}
|
|
|
|
func parseMetadata(r *http.Request) map[string]string {
|
|
res := make(map[string]string)
|
|
for k, v := range r.Header {
|
|
if strings.HasPrefix(k, api.MetadataPrefix) {
|
|
key := strings.ToLower(strings.TrimPrefix(k, api.MetadataPrefix))
|
|
res[key] = v[0]
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := r.Context()
|
|
reqInfo := middleware.GetReqInfo(ctx)
|
|
p := &layer.CreateBucketParams{
|
|
Name: reqInfo.BucketName,
|
|
}
|
|
|
|
if err := checkBucketName(reqInfo.BucketName); err != nil {
|
|
h.logAndSendError(w, "invalid bucket name", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
key, err := h.bearerTokenIssuerKey(ctx)
|
|
if err != nil {
|
|
h.logAndSendError(w, "couldn't get bearer token signature key", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
bktACL, err := parseACLHeaders(r.Header, key)
|
|
if err != nil {
|
|
h.logAndSendError(w, "could not parse bucket acl", reqInfo, err)
|
|
return
|
|
}
|
|
resInfo := &resourceInfo{Bucket: reqInfo.BucketName}
|
|
|
|
p.EACL, err = bucketACLToTable(bktACL, resInfo)
|
|
if err != nil {
|
|
h.logAndSendError(w, "could translate bucket acl to eacl", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
createParams, err := parseLocationConstraint(r)
|
|
if err != nil {
|
|
h.logAndSendError(w, "could not parse body", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
var policies []*accessbox.ContainerPolicy
|
|
boxData, err := middleware.GetBoxData(ctx)
|
|
if err == nil {
|
|
policies = boxData.Policies
|
|
p.SessionContainerCreation = boxData.Gate.SessionTokenForPut()
|
|
p.SessionEACL = boxData.Gate.SessionTokenForSetEACL()
|
|
}
|
|
|
|
if p.SessionContainerCreation == nil {
|
|
h.logAndSendError(w, "couldn't find session token for put", reqInfo, errors.GetAPIError(errors.ErrAccessDenied))
|
|
return
|
|
}
|
|
|
|
if p.SessionEACL == nil {
|
|
h.logAndSendError(w, "couldn't find session token for setEACL", reqInfo, errors.GetAPIError(errors.ErrAccessDenied))
|
|
return
|
|
}
|
|
|
|
if err = h.setPolicy(p, createParams.LocationConstraint, policies); err != nil {
|
|
h.logAndSendError(w, "couldn't set placement policy", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
p.ObjectLockEnabled = isLockEnabled(r.Header)
|
|
|
|
bktInfo, err := h.obj.CreateBucket(ctx, p)
|
|
if err != nil {
|
|
h.logAndSendError(w, "could not create bucket", reqInfo, err)
|
|
return
|
|
}
|
|
|
|
h.reqLogger(ctx).Info(logs.BucketIsCreated, zap.Stringer("container_id", bktInfo.CID))
|
|
|
|
if p.ObjectLockEnabled {
|
|
sp := &layer.PutSettingsParams{
|
|
BktInfo: bktInfo,
|
|
Settings: &data.BucketSettings{Versioning: data.VersioningEnabled},
|
|
}
|
|
if err = h.obj.PutBucketSettings(ctx, sp); err != nil {
|
|
h.logAndSendError(w, "couldn't enable bucket versioning", reqInfo, err,
|
|
zap.String("container_id", bktInfo.CID.EncodeToString()))
|
|
return
|
|
}
|
|
}
|
|
|
|
middleware.WriteSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
func (h handler) setPolicy(prm *layer.CreateBucketParams, locationConstraint string, userPolicies []*accessbox.ContainerPolicy) error {
|
|
prm.Policy = h.cfg.Policy.DefaultPlacementPolicy()
|
|
prm.LocationConstraint = locationConstraint
|
|
|
|
if locationConstraint == "" {
|
|
return nil
|
|
}
|
|
|
|
for _, placementPolicy := range userPolicies {
|
|
if placementPolicy.LocationConstraint == locationConstraint {
|
|
prm.Policy = placementPolicy.Policy
|
|
return nil
|
|
}
|
|
}
|
|
|
|
if policy, ok := h.cfg.Policy.PlacementPolicy(locationConstraint); ok {
|
|
prm.Policy = policy
|
|
return nil
|
|
}
|
|
|
|
return errors.GetAPIError(errors.ErrInvalidLocationConstraint)
|
|
}
|
|
|
|
func isLockEnabled(header http.Header) bool {
|
|
lockEnabledStr := header.Get(api.AmzBucketObjectLockEnabled)
|
|
lockEnabled, _ := strconv.ParseBool(lockEnabledStr)
|
|
return lockEnabled
|
|
}
|
|
|
|
func checkBucketName(bucketName string) error {
|
|
if len(bucketName) < 3 || len(bucketName) > 63 {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
|
|
if strings.HasPrefix(bucketName, "xn--") || strings.HasSuffix(bucketName, "-s3alias") {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
if net.ParseIP(bucketName) != nil {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
|
|
labels := strings.Split(bucketName, ".")
|
|
for _, label := range labels {
|
|
if len(label) == 0 {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
for i, r := range label {
|
|
if !isAlphaNum(r) && r != '-' {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
if (i == 0 || i == len(label)-1) && r == '-' {
|
|
return errors.GetAPIError(errors.ErrInvalidBucketName)
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func isAlphaNum(char int32) bool {
|
|
return 'a' <= char && char <= 'z' || '0' <= char && char <= '9'
|
|
}
|
|
|
|
func parseLocationConstraint(r *http.Request) (*createBucketParams, error) {
|
|
if r.ContentLength == 0 {
|
|
return new(createBucketParams), nil
|
|
}
|
|
|
|
params := new(createBucketParams)
|
|
if err := xml.NewDecoder(r.Body).Decode(params); err != nil {
|
|
return nil, errors.GetAPIError(errors.ErrMalformedXML)
|
|
}
|
|
return params, nil
|
|
}
|