mirror of
https://github.com/minio/minio.git
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77248bd6e8
While the existing code worked, it went to an entire cycle of constructing event structure and end up not sending it. Avoid this in the first place, but returning quickly if notifications are not set on the bucket.
852 lines
26 KiB
Go
852 lines
26 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 implied.
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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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"encoding/hex"
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"encoding/xml"
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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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"path"
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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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)
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// supportedGetReqParams - supported request parameters for GET 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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// errAllowableNotFound - For an anon user, return 404 if have ListBucket, 403 otherwise
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// this is in keeping with the permissions sections of the docs of both:
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// HEAD Object: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectHEAD.html
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// GET Object: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
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func errAllowableObjectNotFound(bucket string, r *http.Request) APIErrorCode {
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if getRequestAuthType(r) == authTypeAnonymous {
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//we care about the bucket as a whole, not a particular resource
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url := *r.URL
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url.Path = "/" + bucket
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if s3Error := enforceBucketPolicy("s3:ListBucket", bucket, &url); s3Error != ErrNone {
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return ErrAccessDenied
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}
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}
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return ErrNoSuchKey
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}
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// Simple way to convert a func to io.Writer type.
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type funcToWriter func([]byte) (int, error)
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func (f funcToWriter) Write(p []byte) (int, error) {
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return f(p)
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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 objectAPIHandlers) 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/using-with-s3-actions.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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// Fetch object stat info.
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objInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err, "Unable to fetch object info.")
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apiErr := toAPIErrorCode(err)
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if apiErr == ErrNoSuchKey {
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apiErr = errAllowableObjectNotFound(bucket, r)
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}
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writeErrorResponse(w, r, apiErr, r.URL.Path)
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return
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}
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// Get request range.
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var hrange *httpRange
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rangeHeader := r.Header.Get("Range")
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if rangeHeader != "" {
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if hrange, err = parseRequestRange(rangeHeader, objInfo.Size); err != nil {
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// Handle only errInvalidRange
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// Ignore other parse error and treat it as regular Get request like Amazon S3.
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if err == errInvalidRange {
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writeErrorResponse(w, r, ErrInvalidRange, r.URL.Path)
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return
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}
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// log the error.
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errorIf(err, "Invalid request range")
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}
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}
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// Validate pre-conditions if any.
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if checkPreconditions(w, r, objInfo) {
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return
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}
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// Get the object.
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startOffset := int64(0)
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length := objInfo.Size
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if hrange != nil {
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startOffset = hrange.offsetBegin
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length = hrange.getLength()
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}
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// Indicates if any data was written to the http.ResponseWriter
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dataWritten := false
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// io.Writer type which keeps track if any data was written.
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writer := funcToWriter(func(p []byte) (int, error) {
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if !dataWritten {
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// Set headers on the first write.
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// Set standard object headers.
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setObjectHeaders(w, objInfo, hrange)
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// Set any additional requested response headers.
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setGetRespHeaders(w, r.URL.Query())
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dataWritten = true
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}
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return w.Write(p)
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})
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// Reads the object at startOffset and writes to mw.
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if err := api.ObjectAPI.GetObject(bucket, object, startOffset, length, writer); err != nil {
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errorIf(err, "Unable to write to client.")
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if !dataWritten {
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// Error response only if no data has been written to client yet. i.e if
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// partial data has already been written before an error
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// occurred then no point in setting StatusCode and
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// sending error XML.
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apiErr := toAPIErrorCode(err)
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writeErrorResponse(w, r, apiErr, r.URL.Path)
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}
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return
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}
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if !dataWritten {
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// If ObjectAPI.GetObject did not return error and no data has
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// been written it would mean that it is a 0-byte object.
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// call wrter.Write(nil) to set appropriate headers.
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writer.Write(nil)
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}
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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 objectAPIHandlers) 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 authTypeAnonymous:
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.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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objInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err, "Unable to fetch object info.")
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apiErr := toAPIErrorCode(err)
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if apiErr == ErrNoSuchKey {
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apiErr = errAllowableObjectNotFound(bucket, r)
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}
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writeErrorResponse(w, r, apiErr, r.URL.Path)
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return
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}
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// Validate pre-conditions if any.
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if checkPreconditions(w, r, objInfo) {
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return
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}
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// Set standard object headers.
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setObjectHeaders(w, objInfo, nil)
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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 objectAPIHandlers) 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/using-with-s3-actions.html
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if s3Error := enforceBucketPolicy("s3:PutObject", 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 don't even read it.
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// objectSource
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objectSource, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
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if err != nil {
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// Save unescaped string as is.
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objectSource = r.Header.Get("X-Amz-Copy-Source")
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}
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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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objInfo, err := api.ObjectAPI.GetObjectInfo(sourceBucket, sourceObject)
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if err != nil {
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errorIf(err, "Unable to fetch object info.")
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writeErrorResponse(w, r, toAPIErrorCode(err), objectSource)
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return
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}
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// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
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if checkCopyObjectPreconditions(w, r, objInfo) {
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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(objInfo.Size) {
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writeErrorResponse(w, r, ErrEntityTooLarge, objectSource)
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return
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}
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pipeReader, pipeWriter := io.Pipe()
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go func() {
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startOffset := int64(0) // Read the whole file.
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// Get the object.
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gErr := api.ObjectAPI.GetObject(sourceBucket, sourceObject, startOffset, objInfo.Size, pipeWriter)
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if gErr != nil {
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errorIf(gErr, "Unable to read an object.")
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pipeWriter.CloseWithError(gErr)
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return
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}
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pipeWriter.Close() // Close.
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}()
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// Size of object.
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size := objInfo.Size
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// Save metadata.
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metadata := make(map[string]string)
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// Save other metadata if available.
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metadata = objInfo.UserDefined
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// Do not set `md5sum` as CopyObject will not keep the
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// same md5sum as the source.
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// Create the object.
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md5Sum, err := api.ObjectAPI.PutObject(bucket, object, size, pipeReader, metadata)
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if err != nil {
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errorIf(err, "Unable to create an object.")
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writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
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return
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}
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objInfo, err = api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err, "Unable to fetch object info.")
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writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
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return
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}
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response := generateCopyObjectResponse(md5Sum, objInfo.ModTime)
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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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pipeReader.Close()
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// Load notification config if any.
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nConfig, err := api.loadNotificationConfig(bucket)
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// Notifications not set, return.
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if err == errNoSuchNotifications {
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return
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}
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// For all other errors, return.
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if err != nil {
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errorIf(err, "Unable to load notification config for bucket: \"%s\"", bucket)
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return
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}
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// Notify object created event.
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notifyObjectCreatedEvent(nConfig, ObjectCreatedCopy, bucket, objInfo)
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}
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// PutObjectHandler - PUT 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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func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
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// If the matching failed, it means that the X-Amz-Copy-Source was
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// wrong, fail right here.
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if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
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writeErrorResponse(w, r, ErrInvalidCopySource, r.URL.Path)
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return
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}
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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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// Get Content-Md5 sent by client and verify if valid
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md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
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if err != nil {
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errorIf(err, "Unable to validate content-md5 format.")
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writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
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return
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}
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/// if Content-Length is unknown/missing, deny the request
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size := r.ContentLength
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if size == -1 && !contains(r.TransferEncoding, "chunked") {
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writeErrorResponse(w, r, ErrMissingContentLength, r.URL.Path)
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return
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}
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/// maximum Upload size for objects in a single operation
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if isMaxObjectSize(size) {
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writeErrorResponse(w, r, ErrEntityTooLarge, r.URL.Path)
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return
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}
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// Extract metadata to be saved from incoming HTTP header.
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metadata := extractMetadataFromHeader(r.Header)
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// Make sure we hex encode md5sum here.
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metadata["md5Sum"] = hex.EncodeToString(md5Bytes)
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var md5Sum string
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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/using-with-s3-actions.html
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if s3Error := enforceBucketPolicy("s3:PutObject", 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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// Create anonymous object.
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md5Sum, err = api.ObjectAPI.PutObject(bucket, object, size, r.Body, metadata)
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case authTypePresigned, authTypeSigned:
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// Initialize signature verifier.
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reader := newSignVerify(r)
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// Create object.
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md5Sum, err = api.ObjectAPI.PutObject(bucket, object, size, reader, metadata)
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}
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if err != nil {
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errorIf(err, "Unable to create an object.")
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writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
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return
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}
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if md5Sum != "" {
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w.Header().Set("ETag", "\""+md5Sum+"\"")
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}
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writeSuccessResponse(w, nil)
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// Load notification config if any.
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nConfig, err := api.loadNotificationConfig(bucket)
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// Notifications not set, return.
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if err == errNoSuchNotifications {
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return
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}
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// For all other errors return.
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if err != nil {
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errorIf(err, "Unable to load notification config for bucket: \"%s\"", bucket)
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return
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}
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// Fetch object info for notifications.
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objInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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errorIf(err, "Unable to fetch object info for \"%s\"", path.Join(bucket, object))
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return
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}
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// Notify object created event.
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notifyObjectCreatedEvent(nConfig, ObjectCreatedPut, bucket, objInfo)
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}
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/// Multipart objectAPIHandlers
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// NewMultipartUploadHandler - New multipart upload
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func (api objectAPIHandlers) NewMultipartUploadHandler(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:PutObject", 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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// Extract metadata that needs to be saved.
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metadata := extractMetadataFromHeader(r.Header)
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uploadID, err := api.ObjectAPI.NewMultipartUpload(bucket, object, metadata)
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if err != nil {
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errorIf(err, "Unable to initiate new multipart upload id.")
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writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
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return
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}
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response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
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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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}
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|
|
|
// PutObjectPartHandler - Upload part
|
|
func (api objectAPIHandlers) 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 {
|
|
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, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
var partMD5 string
|
|
incomingMD5 := hex.EncodeToString(md5Bytes)
|
|
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, incomingMD5)
|
|
case authTypePresigned, authTypeSigned:
|
|
// Initialize signature verifier.
|
|
reader := newSignVerify(r)
|
|
partMD5, err = api.ObjectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, incomingMD5)
|
|
}
|
|
if err != nil {
|
|
errorIf(err, "Unable to create object part.")
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
if partMD5 != "" {
|
|
w.Header().Set("ETag", "\""+partMD5+"\"")
|
|
}
|
|
writeSuccessResponse(w, nil)
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectAPIHandlers) 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, _, _, _ := getObjectResources(r.URL.Query())
|
|
if err := api.ObjectAPI.AbortMultipartUpload(bucket, object, uploadID); err != nil {
|
|
errorIf(err, "Unable to abort multipart upload.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// Send whitespace character, once every 5secs, until CompleteMultipartUpload is done.
|
|
// CompleteMultipartUpload method of the object layer indicates that it's done via doneCh
|
|
func sendWhiteSpaceChars(w http.ResponseWriter, doneCh <-chan struct{}) {
|
|
for {
|
|
select {
|
|
case <-time.After(5 * time.Second):
|
|
w.Write([]byte(" "))
|
|
case <-doneCh:
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectAPIHandlers) 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
|
|
}
|
|
}
|
|
|
|
uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
|
|
if partNumberMarker < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidPartNumberMarker, r.URL.Path)
|
|
return
|
|
}
|
|
if maxParts < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
|
|
return
|
|
}
|
|
listPartsInfo, err := api.ObjectAPI.ListObjectParts(bucket, object, uploadID, partNumberMarker, maxParts)
|
|
if err != nil {
|
|
errorIf(err, "Unable to list uploaded parts.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
response := generateListPartsResponse(listPartsInfo)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// Write headers.
|
|
setCommonHeaders(w)
|
|
// Write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CompleteMultipartUploadHandler - Complete multipart upload
|
|
func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// Get upload id.
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
|
|
var md5Sum 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
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
completeMultipartBytes, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
complMultipartUpload := &completeMultipartUpload{}
|
|
if err = xml.Unmarshal(completeMultipartBytes, complMultipartUpload); err != nil {
|
|
errorIf(err, "Unable to parse complete multipart upload XML.")
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
return
|
|
}
|
|
if len(complMultipartUpload.Parts) == 0 {
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
return
|
|
}
|
|
if !sort.IsSorted(completedParts(complMultipartUpload.Parts)) {
|
|
writeErrorResponse(w, r, ErrInvalidPartOrder, r.URL.Path)
|
|
return
|
|
}
|
|
// Complete parts.
|
|
var completeParts []completePart
|
|
for _, part := range complMultipartUpload.Parts {
|
|
part.ETag = strings.TrimPrefix(part.ETag, "\"")
|
|
part.ETag = strings.TrimSuffix(part.ETag, "\"")
|
|
completeParts = append(completeParts, part)
|
|
}
|
|
// Complete multipart upload.
|
|
// Send 200 OK
|
|
setCommonHeaders(w)
|
|
w.WriteHeader(http.StatusOK)
|
|
// Xml headers need to be sent before we possibly send whitespace characters
|
|
// to the client.
|
|
_, err = w.Write([]byte(xml.Header))
|
|
if err != nil {
|
|
errorIf(err, "Unable to write XML header for complete multipart upload")
|
|
writeErrorResponseNoHeader(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
doneCh := make(chan struct{})
|
|
// Signal that completeMultipartUpload is over via doneCh
|
|
go func(doneCh chan<- struct{}) {
|
|
md5Sum, err = api.ObjectAPI.CompleteMultipartUpload(bucket, object, uploadID, completeParts)
|
|
doneCh <- struct{}{}
|
|
}(doneCh)
|
|
|
|
sendWhiteSpaceChars(w, doneCh)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
switch oErr := err.(type) {
|
|
case PartTooSmall:
|
|
// Write part too small error.
|
|
writePartSmallErrorResponse(w, r, oErr)
|
|
default:
|
|
// Handle all other generic issues.
|
|
writeErrorResponseNoHeader(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Get object location.
|
|
location := getLocation(r)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, md5Sum)
|
|
encodedSuccessResponse, err := xml.Marshal(response)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse CompleteMultipartUpload response")
|
|
writeErrorResponseNoHeader(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Write success response.
|
|
w.Write(encodedSuccessResponse)
|
|
w.(http.Flusher).Flush()
|
|
|
|
// Load notification config if any.
|
|
nConfig, err := api.loadNotificationConfig(bucket)
|
|
// Notifications not set, return.
|
|
if err == errNoSuchNotifications {
|
|
return
|
|
}
|
|
// For all other errors.
|
|
if err != nil {
|
|
errorIf(err, "Unable to load notification config for bucket: \"%s\"", bucket)
|
|
return
|
|
}
|
|
|
|
// Fetch object info for notifications.
|
|
objInfo, err := api.ObjectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info for \"%s\"", path.Join(bucket, object))
|
|
return
|
|
}
|
|
|
|
// Notify object created event.
|
|
notifyObjectCreatedEvent(nConfig, ObjectCreatedCompleteMultipartUpload, bucket, objInfo)
|
|
}
|
|
|
|
/// Delete objectAPIHandlers
|
|
|
|
// DeleteObjectHandler - delete an object
|
|
func (api objectAPIHandlers) 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/using-with-s3-actions.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
|
|
}
|
|
}
|
|
/// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
|
|
/// Ignore delete object errors, since we are suppposed to reply
|
|
/// only 204.
|
|
if err := api.ObjectAPI.DeleteObject(bucket, object); err != nil {
|
|
writeSuccessNoContent(w)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
|
|
// Load notification config if any.
|
|
nConfig, err := api.loadNotificationConfig(bucket)
|
|
// Notifications not set, return.
|
|
if err == errNoSuchNotifications {
|
|
return
|
|
}
|
|
// For all other errors, return.
|
|
if err != nil {
|
|
errorIf(err, "Unable to load notification config for bucket: \"%s\"", bucket)
|
|
return
|
|
}
|
|
|
|
// Notify object deleted event.
|
|
notifyObjectDeletedEvent(nConfig, bucket, object)
|
|
}
|