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efc80343e3
ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
1081 lines
34 KiB
Go
1081 lines
34 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implieapi.ObjectAPI.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"crypto/sha256"
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"encoding/hex"
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"encoding/xml"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/url"
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"sort"
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"strconv"
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"strings"
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"time"
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mux "github.com/gorilla/mux"
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"github.com/minio/minio/pkg/probe"
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)
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const (
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maxPartsList = 1000
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)
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// supportedGetReqParams - supported request parameters for GET
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// presigned request.
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var supportedGetReqParams = map[string]string{
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"response-expires": "Expires",
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"response-content-type": "Content-Type",
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"response-cache-control": "Cache-Control",
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"response-content-disposition": "Content-Disposition",
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}
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// setGetRespHeaders - set any requested parameters as response headers.
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func setGetRespHeaders(w http.ResponseWriter, reqParams url.Values) {
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for k, v := range reqParams {
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if header, ok := supportedGetReqParams[k]; ok {
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w.Header()[header] = v
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}
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}
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}
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// GetObjectHandler - GET Object
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// ----------
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// This implementation of the GET operation retrieves object. To use GET,
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// you must have READ access to the object.
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func (api objectStorageAPI) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
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var object, bucket string
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vars := mux.Vars(r)
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bucket = vars["bucket"]
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object = vars["object"]
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switch getRequestAuthType(r) {
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default:
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// For all unknown auth types return error.
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writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
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return
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case authTypeAnonymous:
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
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if s3Error := enforceBucketPolicy("s3:GetObject", bucket, r.URL); s3Error != ErrNone {
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writeErrorResponse(w, r, s3Error, r.URL.Path)
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return
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}
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case authTypePresigned, authTypeSigned:
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if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
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writeErrorResponse(w, r, s3Error, r.URL.Path)
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return
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}
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}
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objectInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err.Trace(), "GetObject failed.", nil)
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switch err.ToGoError().(type) {
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case BucketNameInvalid:
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writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
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case BucketNotFound:
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writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
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case ObjectNotFound:
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writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
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case ObjectNameInvalid:
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writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
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default:
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writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
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}
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return
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}
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var hrange *httpRange
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hrange, err = getRequestedRange(r.Header.Get("Range"), objectInfo.Size)
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if err != nil {
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writeErrorResponse(w, r, ErrInvalidRange, r.URL.Path)
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return
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}
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// Set standard object headers.
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setObjectHeaders(w, objectInfo, hrange)
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// Verify 'If-Modified-Since' and 'If-Unmodified-Since'.
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lastModified := objectInfo.ModifiedTime
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if checkLastModified(w, r, lastModified) {
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return
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}
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// Verify 'If-Match' and 'If-None-Match'.
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if checkETag(w, r) {
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return
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}
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// Set any additional requested response headers.
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setGetRespHeaders(w, r.URL.Query())
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// Get the object.
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startOffset := hrange.start
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readCloser, err := api.ObjectAPI.GetObject(bucket, object, startOffset)
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if err != nil {
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errorIf(err.Trace(), "GetObject failed.", nil)
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writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
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return
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}
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defer readCloser.Close() // Close after this handler returns.
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if hrange.length > 0 {
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if _, e := io.CopyN(w, readCloser, hrange.length); e != nil {
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errorIf(probe.NewError(e), "Writing to client failed", nil)
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// Do not send error response here, since client could have died.
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return
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}
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} else {
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if _, e := io.Copy(w, readCloser); e != nil {
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errorIf(probe.NewError(e), "Writing to client failed", nil)
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// Do not send error response here, since client could have died.
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return
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}
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}
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}
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var unixEpochTime = time.Unix(0, 0)
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// checkLastModified implements If-Modified-Since and
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// If-Unmodified-Since checks.
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//
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// modtime is the modification time of the resource to be served, or
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// IsZero(). return value is whether this request is now complete.
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func checkLastModified(w http.ResponseWriter, r *http.Request, modtime time.Time) bool {
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if modtime.IsZero() || modtime.Equal(unixEpochTime) {
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// If the object doesn't have a modtime (IsZero), or the modtime
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// is obviously garbage (Unix time == 0), then ignore modtimes
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// and don't process the If-Modified-Since header.
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return false
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}
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// The Date-Modified header truncates sub-second precision, so
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// use mtime < t+1s instead of mtime <= t to check for unmodified.
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if _, ok := r.Header["If-Modified-Since"]; ok {
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// Return the object only if it has been modified since the
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// specified time, otherwise return a 304 (not modified).
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t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since"))
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if err == nil && modtime.Before(t.Add(1*time.Second)) {
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h := w.Header()
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// Remove following headers if already set.
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delete(h, "Content-Type")
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delete(h, "Content-Length")
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delete(h, "Content-Range")
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w.WriteHeader(http.StatusNotModified)
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return true
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}
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} else if _, ok := r.Header["If-Unmodified-Since"]; ok {
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// Return the object only if it has not been modified since
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// the specified time, otherwise return a 412 (precondition failed).
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t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Unmodified-Since"))
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if err == nil && modtime.After(t.Add(1*time.Second)) {
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h := w.Header()
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// Remove following headers if already set.
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delete(h, "Content-Type")
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delete(h, "Content-Length")
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delete(h, "Content-Range")
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w.WriteHeader(http.StatusPreconditionFailed)
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return true
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}
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}
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w.Header().Set("Last-Modified", modtime.UTC().Format(http.TimeFormat))
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return false
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}
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// checkETag implements If-None-Match and If-Match checks.
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//
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// The ETag must have been previously set in the ResponseWriter's
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// headers. The return value is whether this request is now considered
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// done.
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func checkETag(w http.ResponseWriter, r *http.Request) bool {
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etag := w.Header().Get("ETag")
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// Must know ETag.
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if etag == "" {
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return false
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}
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if inm := r.Header.Get("If-None-Match"); inm != "" {
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// Return the object only if its entity tag (ETag) is
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// different from the one specified; otherwise, return a 304
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// (not modified).
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if r.Method != "GET" && r.Method != "HEAD" {
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return false
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}
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if inm == etag || inm == "*" {
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h := w.Header()
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// Remove following headers if already set.
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delete(h, "Content-Type")
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delete(h, "Content-Length")
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delete(h, "Content-Range")
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w.WriteHeader(http.StatusNotModified)
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return true
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}
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} else if im := r.Header.Get("If-Match"); im != "" {
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// Return the object only if its entity tag (ETag) is the same
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// as the one specified; otherwise, return a 412 (precondition failed).
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if r.Method != "GET" && r.Method != "HEAD" {
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return false
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}
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if im != etag {
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h := w.Header()
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// Remove following headers if already set.
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delete(h, "Content-Type")
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delete(h, "Content-Length")
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delete(h, "Content-Range")
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w.WriteHeader(http.StatusPreconditionFailed)
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return true
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}
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}
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return false
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}
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// HeadObjectHandler - HEAD Object
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// -----------
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// The HEAD operation retrieves metadata from an object without returning the object itself.
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func (api objectStorageAPI) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
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var object, bucket string
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vars := mux.Vars(r)
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bucket = vars["bucket"]
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object = vars["object"]
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switch getRequestAuthType(r) {
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default:
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// For all unknown auth types return error.
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writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
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return
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case authTypePresigned, authTypeSigned:
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if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
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writeErrorResponse(w, r, s3Error, r.URL.Path)
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return
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}
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}
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objectInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err.Trace(bucket, object), "GetObjectInfo failed.", nil)
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switch err.ToGoError().(type) {
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case BucketNameInvalid:
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writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
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case BucketNotFound:
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writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
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case ObjectNotFound:
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writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
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case ObjectNameInvalid:
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writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
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default:
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writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
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}
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return
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}
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// Set standard object headers.
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setObjectHeaders(w, objectInfo, nil)
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// Verify 'If-Modified-Since' and 'If-Unmodified-Since'.
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lastModified := objectInfo.ModifiedTime
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if checkLastModified(w, r, lastModified) {
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return
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}
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// Verify 'If-Match' and 'If-None-Match'.
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if checkETag(w, r) {
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return
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}
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// Successfull response.
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w.WriteHeader(http.StatusOK)
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}
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// CopyObjectHandler - Copy Object
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// ----------
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// This implementation of the PUT operation adds an object to a bucket
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// while reading the object from another source.
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func (api objectStorageAPI) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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object := vars["object"]
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switch getRequestAuthType(r) {
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default:
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// For all unknown auth types return error.
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writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
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return
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case authTypeAnonymous:
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
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if s3Error := enforceBucketPolicy("s3:GetBucketLocation", bucket, r.URL); s3Error != ErrNone {
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writeErrorResponse(w, r, s3Error, r.URL.Path)
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return
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}
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case authTypePresigned, authTypeSigned:
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if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
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writeErrorResponse(w, r, s3Error, r.URL.Path)
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return
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}
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}
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// TODO: Reject requests where body/payload is present, for now we
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// don't even read it.
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// objectSource
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objectSource := r.Header.Get("X-Amz-Copy-Source")
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// Skip the first element if it is '/', split the rest.
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if strings.HasPrefix(objectSource, "/") {
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objectSource = objectSource[1:]
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}
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splits := strings.SplitN(objectSource, "/", 2)
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// Save sourceBucket and sourceObject extracted from url Path.
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var sourceBucket, sourceObject string
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if len(splits) == 2 {
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sourceBucket = splits[0]
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sourceObject = splits[1]
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}
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// If source object is empty, reply back error.
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if sourceObject == "" {
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writeErrorResponse(w, r, ErrInvalidCopySource, r.URL.Path)
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return
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}
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// Source and destination objects cannot be same, reply back error.
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if sourceObject == object && sourceBucket == bucket {
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writeErrorResponse(w, r, ErrInvalidCopyDest, r.URL.Path)
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return
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}
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objectInfo, err := api.ObjectAPI.GetObjectInfo(sourceBucket, sourceObject)
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if err != nil {
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errorIf(err.Trace(), "GetObjectInfo failed.", nil)
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switch err.ToGoError().(type) {
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case BucketNameInvalid:
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writeErrorResponse(w, r, ErrInvalidBucketName, objectSource)
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case BucketNotFound:
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writeErrorResponse(w, r, ErrNoSuchBucket, objectSource)
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case ObjectNotFound:
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writeErrorResponse(w, r, ErrNoSuchKey, objectSource)
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case ObjectNameInvalid:
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writeErrorResponse(w, r, ErrNoSuchKey, objectSource)
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default:
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writeErrorResponse(w, r, ErrInternalError, objectSource)
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}
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return
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}
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// Verify before writing.
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// Verify x-amz-copy-source-if-modified-since and
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// x-amz-copy-source-if-unmodified-since.
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lastModified := objectInfo.ModifiedTime
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if checkCopySourceLastModified(w, r, lastModified) {
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return
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}
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// Verify x-amz-copy-source-if-match and
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// x-amz-copy-source-if-none-match.
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if checkCopySourceETag(w, r) {
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return
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}
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/// maximum Upload size for object in a single CopyObject operation.
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if isMaxObjectSize(objectInfo.Size) {
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writeErrorResponse(w, r, ErrEntityTooLarge, objectSource)
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return
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}
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var md5Bytes []byte
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if objectInfo.MD5Sum != "" {
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var e error
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md5Bytes, e = hex.DecodeString(objectInfo.MD5Sum)
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if e != nil {
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errorIf(probe.NewError(e), "Decoding md5 failed.", nil)
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writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
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return
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}
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}
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startOffset := int64(0) // Read the whole file.
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// Get the object.
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readCloser, getErr := api.ObjectAPI.GetObject(sourceBucket, sourceObject, startOffset)
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if getErr != nil {
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errorIf(getErr.Trace(sourceBucket, sourceObject), "Reading "+objectSource+" failed.", nil)
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switch err.ToGoError().(type) {
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case BucketNotFound:
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writeErrorResponse(w, r, ErrNoSuchBucket, objectSource)
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case ObjectNotFound:
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writeErrorResponse(w, r, ErrNoSuchKey, objectSource)
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default:
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writeErrorResponse(w, r, ErrInternalError, objectSource)
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}
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return
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}
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// Size of object.
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size := objectInfo.Size
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// Save metadata.
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metadata := make(map[string]string)
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metadata["md5Sum"] = hex.EncodeToString(md5Bytes)
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// Create the object.
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objectInfo, err = api.ObjectAPI.PutObject(bucket, object, size, readCloser, metadata)
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if err != nil {
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errorIf(err.Trace(), "PutObject failed.", nil)
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switch err.ToGoError().(type) {
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case RootPathFull:
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writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
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case BucketNotFound:
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writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
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case BucketNameInvalid:
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writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
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case BadDigest:
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writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
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case IncompleteBody:
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writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
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case ObjectExistsAsPrefix:
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writeErrorResponse(w, r, ErrObjectExistsAsPrefix, r.URL.Path)
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default:
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writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
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}
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return
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}
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response := generateCopyObjectResponse(objectInfo.MD5Sum, objectInfo.ModifiedTime)
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encodedSuccessResponse := encodeResponse(response)
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// write headers
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setCommonHeaders(w)
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// write success response.
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writeSuccessResponse(w, encodedSuccessResponse)
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// Explicitly close the reader, to avoid fd leaks.
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readCloser.Close()
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}
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// checkCopySource implements x-amz-copy-source-if-modified-since and
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// x-amz-copy-source-if-unmodified-since checks.
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//
|
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// modtime is the modification time of the resource to be served, or
|
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// IsZero(). return value is whether this request is now complete.
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func checkCopySourceLastModified(w http.ResponseWriter, r *http.Request, modtime time.Time) bool {
|
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if modtime.IsZero() || modtime.Equal(unixEpochTime) {
|
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// If the object doesn't have a modtime (IsZero), or the modtime
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|
// is obviously garbage (Unix time == 0), then ignore modtimes
|
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// and don't process the If-Modified-Since header.
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return false
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}
|
|
// The Date-Modified header truncates sub-second precision, so
|
|
// use mtime < t+1s instead of mtime <= t to check for unmodified.
|
|
if _, ok := r.Header["x-amz-copy-source-if-modified-since"]; ok {
|
|
// Return the object only if it has been modified since the
|
|
// specified time, otherwise return a 304 error (not modified).
|
|
t, err := time.Parse(http.TimeFormat, r.Header.Get("x-amz-copy-source-if-modified-since"))
|
|
if err == nil && modtime.Before(t.Add(1*time.Second)) {
|
|
h := w.Header()
|
|
// Remove Content headers if set
|
|
delete(h, "Content-Type")
|
|
delete(h, "Content-Length")
|
|
delete(h, "Content-Range")
|
|
w.WriteHeader(http.StatusNotModified)
|
|
return true
|
|
}
|
|
} else if _, ok := r.Header["x-amz-copy-source-if-unmodified-since"]; ok {
|
|
// Return the object only if it has not been modified since the
|
|
// specified time, otherwise return a 412 error (precondition failed).
|
|
t, err := time.Parse(http.TimeFormat, r.Header.Get("x-amz-copy-source-if-unmodified-since"))
|
|
if err == nil && modtime.After(t.Add(1*time.Second)) {
|
|
h := w.Header()
|
|
// Remove Content headers if set
|
|
delete(h, "Content-Type")
|
|
delete(h, "Content-Length")
|
|
delete(h, "Content-Range")
|
|
w.WriteHeader(http.StatusPreconditionFailed)
|
|
return true
|
|
}
|
|
}
|
|
w.Header().Set("Last-Modified", modtime.UTC().Format(http.TimeFormat))
|
|
return false
|
|
}
|
|
|
|
// checkCopySourceETag implements x-amz-copy-source-if-match and
|
|
// x-amz-copy-source-if-none-match checks.
|
|
//
|
|
// The ETag must have been previously set in the ResponseWriter's
|
|
// headers. The return value is whether this request is now considered
|
|
// complete.
|
|
func checkCopySourceETag(w http.ResponseWriter, r *http.Request) bool {
|
|
etag := w.Header().Get("ETag")
|
|
// Tag must be provided...
|
|
if etag == "" {
|
|
return false
|
|
}
|
|
if inm := r.Header.Get("x-amz-copy-source-if-none-match"); inm != "" {
|
|
// Return the object only if its entity tag (ETag) is different
|
|
// from the one specified; otherwise, return a 304 (not modified).
|
|
if r.Method != "PUT" {
|
|
return false
|
|
}
|
|
if inm == etag || inm == "*" {
|
|
h := w.Header()
|
|
// Remove Content headers if set
|
|
delete(h, "Content-Type")
|
|
delete(h, "Content-Length")
|
|
delete(h, "Content-Range")
|
|
w.WriteHeader(http.StatusNotModified)
|
|
return true
|
|
}
|
|
} else if inm := r.Header.Get("x-amz-copy-source-if-match"); inm != "" {
|
|
// Return the object only if its entity tag (ETag) is the same
|
|
// as the one specified; otherwise, return a 412 (precondition failed).
|
|
if r.Method != "PUT" {
|
|
return false
|
|
}
|
|
if inm != etag {
|
|
h := w.Header()
|
|
// Remove Content headers if set
|
|
delete(h, "Content-Type")
|
|
delete(h, "Content-Length")
|
|
delete(h, "Content-Range")
|
|
w.WriteHeader(http.StatusPreconditionFailed)
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
|
|
}
|
|
|
|
// PutObjectHandler - PUT Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket.
|
|
func (api objectStorageAPI) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
// If the matching failed, it means that the X-Amz-Copy-Source was
|
|
// wrong, fail right here.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, r, ErrInvalidCopySource, r.URL.Path)
|
|
return
|
|
}
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// Get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
errorIf(err.Trace(r.Header.Get("Content-Md5")), "Decoding md5 failed.", nil)
|
|
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
|
|
return
|
|
}
|
|
/// if Content-Length is unknown/missing, deny the request
|
|
size := r.ContentLength
|
|
if size == -1 && !contains(r.TransferEncoding, "chunked") {
|
|
writeErrorResponse(w, r, ErrMissingContentLength, r.URL.Path)
|
|
return
|
|
}
|
|
/// maximum Upload size for objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, r, ErrEntityTooLarge, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
var objectInfo ObjectInfo
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
// Create anonymous object.
|
|
objectInfo, err = api.ObjectAPI.PutObject(bucket, object, size, r.Body, nil)
|
|
case authTypePresigned:
|
|
// For presigned requests verify them right here.
|
|
if apiErr := doesPresignedSignatureMatch(r); apiErr != ErrNone {
|
|
writeErrorResponse(w, r, apiErr, r.URL.Path)
|
|
return
|
|
}
|
|
// Create presigned object.
|
|
objectInfo, err = api.ObjectAPI.PutObject(bucket, object, size, r.Body, nil)
|
|
case authTypeSigned:
|
|
// Initialize a pipe for data pipe line.
|
|
reader, writer := io.Pipe()
|
|
|
|
// Start writing in a routine.
|
|
go func() {
|
|
shaWriter := sha256.New()
|
|
multiWriter := io.MultiWriter(shaWriter, writer)
|
|
if _, e := io.CopyN(multiWriter, r.Body, size); e != nil {
|
|
errorIf(probe.NewError(e), "Unable to read HTTP body.", nil)
|
|
writer.CloseWithError(e)
|
|
return
|
|
}
|
|
shaPayload := shaWriter.Sum(nil)
|
|
if apiErr := doesSignatureMatch(hex.EncodeToString(shaPayload), r); apiErr != ErrNone {
|
|
if apiErr == ErrSignatureDoesNotMatch {
|
|
writer.CloseWithError(errSignatureMismatch)
|
|
return
|
|
}
|
|
writer.CloseWithError(fmt.Errorf("%v", getAPIError(apiErr)))
|
|
return
|
|
}
|
|
writer.Close()
|
|
}()
|
|
|
|
// Save metadata.
|
|
metadata := make(map[string]string)
|
|
metadata["md5Sum"] = hex.EncodeToString(md5Bytes)
|
|
|
|
// Create object.
|
|
objectInfo, err = api.ObjectAPI.PutObject(bucket, object, size, reader, metadata)
|
|
}
|
|
if err != nil {
|
|
errorIf(err.Trace(), "PutObject failed.", nil)
|
|
e := err.ToGoError()
|
|
// Verify if the underlying error is signature mismatch.
|
|
if e == errSignatureMismatch {
|
|
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
|
|
return
|
|
}
|
|
switch e.(type) {
|
|
case RootPathFull:
|
|
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BadDigest:
|
|
writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
|
|
case IncompleteBody:
|
|
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
|
|
case ObjectExistsAsPrefix:
|
|
writeErrorResponse(w, r, ErrObjectExistsAsPrefix, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
if objectInfo.MD5Sum != "" {
|
|
w.Header().Set("ETag", "\""+objectInfo.MD5Sum+"\"")
|
|
}
|
|
writeSuccessResponse(w, nil)
|
|
}
|
|
|
|
/// Multipart objectStorageAPI
|
|
|
|
// NewMultipartUploadHandler - New multipart upload
|
|
func (api objectStorageAPI) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
uploadID, err := api.ObjectAPI.NewMultipartUpload(bucket, object)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "NewMultipartUpload failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case RootPathFull:
|
|
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case ObjectNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case ObjectNameInvalid:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
|
|
response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// write headers
|
|
setCommonHeaders(w)
|
|
// write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// PutObjectPartHandler - Upload part
|
|
func (api objectStorageAPI) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
errorIf(err.Trace(r.Header.Get("Content-Md5")), "Decoding md5 failed.", nil)
|
|
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, throw away
|
|
size := r.ContentLength
|
|
if size == -1 {
|
|
writeErrorResponse(w, r, ErrMissingContentLength, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for multipart objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, r, ErrEntityTooLarge, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, e := strconv.Atoi(partIDString)
|
|
if e != nil {
|
|
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
var partMD5 string
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
// No need to verify signature, anonymous request access is
|
|
// already allowed.
|
|
partMD5, err = api.ObjectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, hex.EncodeToString(md5Bytes))
|
|
case authTypePresigned:
|
|
// For presigned requests verify right here.
|
|
apiErr := doesPresignedSignatureMatch(r)
|
|
if apiErr != ErrNone {
|
|
writeErrorResponse(w, r, apiErr, r.URL.Path)
|
|
return
|
|
}
|
|
partMD5, err = api.ObjectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, hex.EncodeToString(md5Bytes))
|
|
case authTypeSigned:
|
|
// Initialize a pipe for data pipe line.
|
|
reader, writer := io.Pipe()
|
|
|
|
// Start writing in a routine.
|
|
go func() {
|
|
shaWriter := sha256.New()
|
|
multiWriter := io.MultiWriter(shaWriter, writer)
|
|
if _, e := io.CopyN(multiWriter, r.Body, size); e != nil {
|
|
errorIf(probe.NewError(e), "Unable to read HTTP body.", nil)
|
|
writer.CloseWithError(e)
|
|
return
|
|
}
|
|
shaPayload := shaWriter.Sum(nil)
|
|
if apiErr := doesSignatureMatch(hex.EncodeToString(shaPayload), r); apiErr != ErrNone {
|
|
if apiErr == ErrSignatureDoesNotMatch {
|
|
writer.CloseWithError(errSignatureMismatch)
|
|
return
|
|
}
|
|
writer.CloseWithError(fmt.Errorf("%v", getAPIError(apiErr)))
|
|
return
|
|
}
|
|
writer.Close()
|
|
}()
|
|
partMD5, err = api.ObjectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, hex.EncodeToString(md5Bytes))
|
|
}
|
|
if err != nil {
|
|
errorIf(err.Trace(), "PutObjectPart failed.", nil)
|
|
e := err.ToGoError()
|
|
// Verify if the underlying error is signature mismatch.
|
|
if e == errSignatureMismatch {
|
|
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
|
|
return
|
|
}
|
|
switch e.(type) {
|
|
case RootPathFull:
|
|
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
|
|
case InvalidUploadID:
|
|
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
|
|
case BadDigest:
|
|
writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
|
|
case IncompleteBody:
|
|
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
if partMD5 != "" {
|
|
w.Header().Set("ETag", "\""+partMD5+"\"")
|
|
}
|
|
writeSuccessResponse(w, nil)
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectStorageAPI) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:AbortMultipartUpload", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
uploadID := getUploadID(r.URL.Query()) // Get upload id.
|
|
err := api.ObjectAPI.AbortMultipartUpload(bucket, object, uploadID)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "AbortMutlipartUpload failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case ObjectNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case ObjectNameInvalid:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case InvalidUploadID:
|
|
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectStorageAPI) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:ListMultipartUploadParts", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
objectResourcesMetadata := getObjectResources(r.URL.Query())
|
|
if objectResourcesMetadata.PartNumberMarker < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidPartNumberMarker, r.URL.Path)
|
|
return
|
|
}
|
|
if objectResourcesMetadata.MaxParts < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
|
|
return
|
|
}
|
|
if objectResourcesMetadata.MaxParts == 0 {
|
|
objectResourcesMetadata.MaxParts = maxPartsList
|
|
}
|
|
|
|
objectResourcesMetadata, err := api.ObjectAPI.ListObjectParts(bucket, object, objectResourcesMetadata)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "ListObjectParts failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case ObjectNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case ObjectNameInvalid:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case InvalidUploadID:
|
|
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
response := generateListPartsResponse(objectResourcesMetadata)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// Write headers.
|
|
setCommonHeaders(w)
|
|
// Write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CompleteMultipartUploadHandler - Complete multipart upload
|
|
func (api objectStorageAPI) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// Get upload id.
|
|
uploadID := getUploadID(r.URL.Query()) // Get upload id.
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
completeMultipartBytes, e := ioutil.ReadAll(r.Body)
|
|
if e != nil {
|
|
errorIf(probe.NewError(e), "CompleteMultipartUpload failed.", nil)
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
completeMultipartUpload := &CompleteMultipartUpload{}
|
|
if e = xml.Unmarshal(completeMultipartBytes, completeMultipartUpload); e != nil {
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
return
|
|
}
|
|
if !sort.IsSorted(completedParts(completeMultipartUpload.Parts)) {
|
|
writeErrorResponse(w, r, ErrInvalidPartOrder, r.URL.Path)
|
|
return
|
|
}
|
|
// Complete parts.
|
|
completeParts := completeMultipartUpload.Parts
|
|
|
|
// Complete multipart upload.
|
|
objectInfo, err := api.ObjectAPI.CompleteMultipartUpload(bucket, object, uploadID, completeParts)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "CompleteMultipartUpload failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case ObjectNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case ObjectNameInvalid:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case InvalidUploadID:
|
|
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
|
|
case InvalidPart:
|
|
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
|
|
case InvalidPartOrder:
|
|
writeErrorResponse(w, r, ErrInvalidPartOrder, r.URL.Path)
|
|
case IncompleteBody:
|
|
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
|
|
case MalformedXML:
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
// Get object location.
|
|
location := getLocation(r)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, objectInfo.MD5Sum)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// Write headers.
|
|
setCommonHeaders(w)
|
|
// write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
/// Delete objectStorageAPI
|
|
|
|
// DeleteObjectHandler - delete an object
|
|
func (api objectStorageAPI) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy("s3:DeleteObject", bucket, r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
err := api.ObjectAPI.DeleteObject(bucket, object)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "DeleteObject failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case BucketNameInvalid:
|
|
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
|
|
case BucketNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
|
|
case ObjectNotFound:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
case ObjectNameInvalid:
|
|
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|