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29ef7d29e4
In-place decryption/encryption already holds write locks on them, attempting to acquire a read lock would fail.
1345 lines
39 KiB
Go
1345 lines
39 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015-2018 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 cmd
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import (
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"crypto/hmac"
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"encoding/binary"
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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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goioutil "io/ioutil"
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"net"
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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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mux "github.com/gorilla/mux"
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"github.com/minio/minio/pkg/errors"
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"github.com/minio/minio/pkg/handlers"
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"github.com/minio/minio/pkg/hash"
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"github.com/minio/minio/pkg/ioutil"
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sha256 "github.com/minio/sha256-simd"
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"github.com/minio/sio"
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)
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// supportedHeadGetReqParams - supported request parameters for GET and HEAD presigned request.
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var supportedHeadGetReqParams = 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-encoding": "Content-Encoding",
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"response-content-language": "Content-Language",
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"response-content-disposition": "Content-Disposition",
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}
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// setHeadGetRespHeaders - set any requested parameters as response headers.
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func setHeadGetRespHeaders(w http.ResponseWriter, reqParams url.Values) {
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for k, v := range reqParams {
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if header, ok := supportedHeadGetReqParams[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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resource := "/" + bucket
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sourceIP := handlers.GetSourceIP(r)
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if s3Error := enforceBucketPolicy(bucket, "s3:ListBucket", resource,
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r.Referer(), sourceIP, r.URL.Query()); 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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// 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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// Fetch object stat info.
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(w, ErrServerNotInitialized, r.URL)
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return
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}
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if s3Error := checkRequestAuthType(r, bucket, "s3:GetObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
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writeErrorResponse(w, s3Error, r.URL)
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return
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}
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objInfo, err := objectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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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, apiErr, r.URL)
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return
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}
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if objectAPI.IsEncryptionSupported() {
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if apiErr, _ := DecryptObjectInfo(&objInfo, r.Header); apiErr != ErrNone {
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writeErrorResponse(w, apiErr, r.URL)
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return
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}
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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, ErrInvalidRange, r.URL)
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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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var startOffset int64
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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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var writer io.Writer
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writer = w
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if objectAPI.IsEncryptionSupported() {
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if hasSSECustomerHeader(r.Header) {
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// Response writer should be limited early on for decryption upto required length,
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// additionally also skipping mod(offset)64KiB boundaries.
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writer = ioutil.LimitedWriter(writer, startOffset%(64*1024), length)
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writer, startOffset, length, err = DecryptBlocksRequest(writer, r, startOffset, length, objInfo, false)
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if err != nil {
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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w.Header().Set(SSECustomerAlgorithm, r.Header.Get(SSECustomerAlgorithm))
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w.Header().Set(SSECustomerKeyMD5, r.Header.Get(SSECustomerKeyMD5))
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}
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}
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setObjectHeaders(w, objInfo, hrange)
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setHeadGetRespHeaders(w, r.URL.Query())
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httpWriter := ioutil.WriteOnClose(writer)
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// Reads the object at startOffset and writes to httpWriter.
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if err = objectAPI.GetObject(bucket, object, startOffset, length, httpWriter, objInfo.ETag); err != nil {
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errorIf(err, "Unable to write to client.")
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if !httpWriter.HasWritten() { // write error response only if no data has been written to client yet
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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}
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httpWriter.Close()
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return
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}
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if err = httpWriter.Close(); err != nil {
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if !httpWriter.HasWritten() { // write error response only if no data has been written to client yet
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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}
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// Get host and port from Request.RemoteAddr.
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host, port, err := net.SplitHostPort(r.RemoteAddr)
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if err != nil {
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host, port = "", ""
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}
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// Notify object accessed via a GET request.
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eventNotify(eventData{
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Type: ObjectAccessedGet,
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Bucket: bucket,
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ObjInfo: objInfo,
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ReqParams: extractReqParams(r),
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UserAgent: r.UserAgent(),
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Host: host,
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Port: port,
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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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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponseHeadersOnly(w, ErrServerNotInitialized)
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return
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}
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if s3Error := checkRequestAuthType(r, bucket, "s3:GetObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
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writeErrorResponseHeadersOnly(w, s3Error)
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return
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}
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objInfo, err := objectAPI.GetObjectInfo(bucket, object)
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if err != nil {
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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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writeErrorResponseHeadersOnly(w, apiErr)
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return
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}
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if objectAPI.IsEncryptionSupported() {
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if apiErr, encrypted := DecryptObjectInfo(&objInfo, r.Header); apiErr != ErrNone {
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writeErrorResponse(w, apiErr, r.URL)
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return
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} else if encrypted {
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if _, err = DecryptRequest(w, r, objInfo.UserDefined); err != nil {
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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w.Header().Set(SSECustomerAlgorithm, r.Header.Get(SSECustomerAlgorithm))
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w.Header().Set(SSECustomerKeyMD5, r.Header.Get(SSECustomerKeyMD5))
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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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// Set standard object headers.
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setObjectHeaders(w, objInfo, nil)
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// Set any additional requested response headers.
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setHeadGetRespHeaders(w, r.URL.Query())
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// Successful response.
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w.WriteHeader(http.StatusOK)
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// Get host and port from Request.RemoteAddr.
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host, port, err := net.SplitHostPort(r.RemoteAddr)
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if err != nil {
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host, port = "", ""
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}
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// Notify object accessed via a HEAD request.
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eventNotify(eventData{
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Type: ObjectAccessedHead,
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Bucket: bucket,
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ObjInfo: objInfo,
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ReqParams: extractReqParams(r),
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UserAgent: r.UserAgent(),
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Host: host,
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Port: port,
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})
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}
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// Extract metadata relevant for an CopyObject operation based on conditional
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// header values specified in X-Amz-Metadata-Directive.
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func getCpObjMetadataFromHeader(header http.Header, userMeta map[string]string) (map[string]string, error) {
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// Make a copy of the supplied metadata to avoid
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// to change the original one.
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defaultMeta := make(map[string]string, len(userMeta))
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for k, v := range userMeta {
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defaultMeta[k] = v
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}
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// if x-amz-metadata-directive says REPLACE then
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// we extract metadata from the input headers.
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if isMetadataReplace(header) {
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return extractMetadataFromHeader(header)
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}
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// if x-amz-metadata-directive says COPY then we
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// return the default metadata.
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if isMetadataCopy(header) {
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return defaultMeta, nil
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}
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// Copy is default behavior if not x-amz-metadata-directive is set.
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return defaultMeta, nil
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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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dstBucket := vars["bucket"]
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dstObject := vars["object"]
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(w, ErrServerNotInitialized, r.URL)
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return
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}
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if s3Error := checkRequestAuthType(r, dstBucket, "s3:PutObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
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writeErrorResponse(w, s3Error, r.URL)
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return
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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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// Copy source path.
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cpSrcPath, 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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cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
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}
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srcBucket, srcObject := path2BucketAndObject(cpSrcPath)
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// If source object is empty or bucket is empty, reply back invalid copy source.
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if srcObject == "" || srcBucket == "" {
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writeErrorResponse(w, ErrInvalidCopySource, r.URL)
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return
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}
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// Check if metadata directive is valid.
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if !isMetadataDirectiveValid(r.Header) {
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writeErrorResponse(w, ErrInvalidMetadataDirective, r.URL)
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return
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}
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cpSrcDstSame := isStringEqual(pathJoin(srcBucket, srcObject), pathJoin(dstBucket, dstObject))
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srcInfo, err := objectAPI.GetObjectInfo(srcBucket, srcObject)
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if err != nil {
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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if objectAPI.IsEncryptionSupported() {
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if apiErr, _ := DecryptCopyObjectInfo(&srcInfo, r.Header); apiErr != ErrNone {
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writeErrorResponse(w, apiErr, r.URL)
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return
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}
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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, srcInfo) {
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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(srcInfo.Size) {
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writeErrorResponse(w, ErrEntityTooLarge, r.URL)
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return
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}
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// Initialize pipe.
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pipeReader, pipeWriter := io.Pipe()
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// We have to copy metadata only if source and destination are same.
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// this changes for encryption which can be observed below.
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if cpSrcDstSame {
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srcInfo.metadataOnly = true
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}
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var writer io.WriteCloser = pipeWriter
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var reader io.Reader = pipeReader
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srcInfo.Reader, err = hash.NewReader(reader, srcInfo.Size, "", "")
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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// Save the original size for later use when we want to copy
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// encrypted file into an unencrypted one.
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size := srcInfo.Size
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var encMetadata = make(map[string]string)
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if objectAPI.IsEncryptionSupported() {
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var oldKey, newKey []byte
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sseCopyC := hasSSECopyCustomerHeader(r.Header)
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sseC := hasSSECustomerHeader(r.Header)
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if sseC {
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newKey, err = ParseSSECustomerRequest(r)
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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}
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// AWS S3 implementation requires us to only rotate keys
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// when/ both keys are provided and destination is same
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// otherwise we proceed to encrypt/decrypt.
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if sseCopyC && sseC && cpSrcDstSame {
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// Get the old key which needs to be rotated.
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oldKey, err = ParseSSECopyCustomerRequest(r)
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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for k, v := range srcInfo.UserDefined {
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encMetadata[k] = v
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}
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if err = rotateKey(oldKey, newKey, encMetadata); err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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// Since we are rotating the keys, make sure to update the metadata.
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srcInfo.metadataOnly = true
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} else {
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if sseCopyC {
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// Source is encrypted make sure to save the encrypted size.
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writer = ioutil.LimitedWriter(writer, 0, srcInfo.Size)
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writer, srcInfo.Size, err = DecryptAllBlocksCopyRequest(writer, r, srcInfo)
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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// We are not only copying just metadata instead
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// we are creating a new object at this point, even
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// if source and destination are same objects.
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srcInfo.metadataOnly = false
|
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if sseC {
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size = srcInfo.Size
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}
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}
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if sseC {
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reader, err = newEncryptReader(pipeReader, newKey, encMetadata)
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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// We are not only copying just metadata instead
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// we are creating a new object at this point, even
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// if source and destination are same objects.
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srcInfo.metadataOnly = false
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if !sseCopyC {
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size = srcInfo.EncryptedSize()
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}
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}
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srcInfo.Reader, err = hash.NewReader(reader, size, "", "") // do not try to verify encrypted content
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if err != nil {
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pipeWriter.CloseWithError(err)
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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}
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}
|
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srcInfo.Writer = writer
|
|
|
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srcInfo.UserDefined, err = getCpObjMetadataFromHeader(r.Header, srcInfo.UserDefined)
|
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if err != nil {
|
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pipeWriter.CloseWithError(err)
|
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errorIf(err, "found invalid http request header")
|
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writeErrorResponse(w, ErrInternalError, r.URL)
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return
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}
|
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|
|
// We need to preserve the encryption headers set in EncryptRequest,
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// so we do not want to override them, copy them instead.
|
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for k, v := range encMetadata {
|
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srcInfo.UserDefined[k] = v
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}
|
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|
|
// Check if x-amz-metadata-directive was not set to REPLACE and source,
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|
// desination are same objects. Apply this restriction also when
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// metadataOnly is true indicating that we are not overwriting the object.
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|
// if encryption is enabled we do not need explicit "REPLACE" metadata to
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// be enabled as well - this is to allow for key-rotation.
|
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if !isMetadataReplace(r.Header) && srcInfo.metadataOnly && !srcInfo.IsEncrypted() {
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pipeWriter.CloseWithError(fmt.Errorf("invalid copy dest"))
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// If x-amz-metadata-directive is not set to REPLACE then we need
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// to error out if source and destination are same.
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writeErrorResponse(w, ErrInvalidCopyDest, r.URL)
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return
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}
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|
|
// Copy source object to destination, if source and destination
|
|
// object is same then only metadata is updated.
|
|
objInfo, err := objectAPI.CopyObject(srcBucket, srcObject, dstBucket, dstObject, srcInfo)
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
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writeErrorResponse(w, toAPIErrorCode(err), r.URL)
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return
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}
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|
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pipeReader.Close()
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|
|
response := generateCopyObjectResponse(objInfo.ETag, objInfo.ModTime)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCopy,
|
|
Bucket: dstBucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// PutObjectHandler - PUT Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket.
|
|
func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// Validate storage class metadata if present
|
|
if _, ok := r.Header[amzStorageClassCanonical]; ok {
|
|
if !isValidStorageClassMeta(r.Header.Get(amzStorageClassCanonical)) {
|
|
writeErrorResponse(w, ErrInvalidStorageClass, r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidDigest, r.URL)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, deny the request
|
|
size := r.ContentLength
|
|
rAuthType := getRequestAuthType(r)
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract metadata to be saved from incoming HTTP header.
|
|
metadata, err := extractMetadataFromHeader(r.Header)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
if rAuthType == authTypeStreamingSigned {
|
|
if contentEncoding, ok := metadata["content-encoding"]; ok {
|
|
contentEncoding = trimAwsChunkedContentEncoding(contentEncoding)
|
|
if contentEncoding != "" {
|
|
// Make sure to trim and save the content-encoding
|
|
// parameter for a streaming signature which is set
|
|
// to a custom value for example: "aws-chunked,gzip".
|
|
metadata["content-encoding"] = contentEncoding
|
|
} else {
|
|
// Trimmed content encoding is empty when the header
|
|
// value is set to "aws-chunked" only.
|
|
|
|
// Make sure to delete the content-encoding parameter
|
|
// for a streaming signature which is set to value
|
|
// for example: "aws-chunked"
|
|
delete(metadata, "content-encoding")
|
|
}
|
|
}
|
|
}
|
|
|
|
var (
|
|
md5hex = hex.EncodeToString(md5Bytes)
|
|
sha256hex = ""
|
|
reader io.Reader
|
|
s3Err APIErrorCode
|
|
)
|
|
reader = r.Body
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
sourceIP := handlers.GetSourceIP(r)
|
|
if s3Err = enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path, r.Referer(), sourceIP, r.URL.Query()); s3Err != ErrNone {
|
|
writeErrorResponse(w, s3Err, r.URL)
|
|
return
|
|
}
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
reader, s3Err = newSignV4ChunkedReader(r)
|
|
if s3Err != ErrNone {
|
|
writeErrorResponse(w, s3Err, r.URL)
|
|
return
|
|
}
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
s3Err = isReqAuthenticatedV2(r)
|
|
if s3Err != ErrNone {
|
|
writeErrorResponse(w, s3Err, r.URL)
|
|
return
|
|
}
|
|
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Err = reqSignatureV4Verify(r, globalServerConfig.GetRegion()); s3Err != ErrNone {
|
|
writeErrorResponse(w, s3Err, r.URL)
|
|
return
|
|
}
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256hex = getContentSha256Cksum(r)
|
|
}
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
if objectAPI.IsEncryptionSupported() {
|
|
if hasSSECustomerHeader(r.Header) && !hasSuffix(object, slashSeparator) { // handle SSE-C requests
|
|
reader, err = EncryptRequest(hashReader, r, metadata)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
info := ObjectInfo{Size: size}
|
|
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "") // do not try to verify encrypted content
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
objInfo, err := objectAPI.PutObject(bucket, object, hashReader, metadata)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
|
if objectAPI.IsEncryptionSupported() {
|
|
if hasSSECustomerHeader(r.Header) {
|
|
w.Header().Set(SSECustomerAlgorithm, r.Header.Get(SSECustomerAlgorithm))
|
|
w.Header().Set(SSECustomerKeyMD5, r.Header.Get(SSECustomerKeyMD5))
|
|
}
|
|
}
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedPut,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
/// Multipart objectAPIHandlers
|
|
|
|
// NewMultipartUploadHandler - New multipart upload.
|
|
func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:PutObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Validate storage class metadata if present
|
|
if _, ok := r.Header[amzStorageClassCanonical]; ok {
|
|
if !isValidStorageClassMeta(r.Header.Get(amzStorageClassCanonical)) {
|
|
writeErrorResponse(w, ErrInvalidStorageClass, r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
var encMetadata = map[string]string{}
|
|
|
|
if objectAPI.IsEncryptionSupported() {
|
|
if hasSSECustomerHeader(r.Header) {
|
|
key, err := ParseSSECustomerRequest(r)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
_, err = newEncryptMetadata(key, encMetadata)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Set this for multipart only operations, we need to differentiate during
|
|
// decryption if the file was actually multipart or not.
|
|
encMetadata[ReservedMetadataPrefix+"Encrypted-Multipart"] = ""
|
|
}
|
|
}
|
|
|
|
// Extract metadata that needs to be saved.
|
|
metadata, err := extractMetadataFromHeader(r.Header)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
|
|
// We need to preserve the encryption headers set in EncryptRequest,
|
|
// so we do not want to override them, copy them instead.
|
|
for k, v := range encMetadata {
|
|
metadata[k] = v
|
|
}
|
|
|
|
uploadID, err := objectAPI.NewMultipartUpload(bucket, object, metadata)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CopyObjectPartHandler - uploads a part by copying data from an existing object as data source.
|
|
func (api objectAPIHandlers) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
dstBucket := vars["bucket"]
|
|
dstObject := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, dstBucket, "s3:PutObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Copy source path.
|
|
cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
|
|
if err != nil {
|
|
// Save unescaped string as is.
|
|
cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
|
|
}
|
|
|
|
srcBucket, srcObject := path2BucketAndObject(cpSrcPath)
|
|
// If source object is empty or bucket is empty, reply back invalid copy source.
|
|
if srcObject == "" || srcBucket == "" {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidPart, r.URL)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
|
|
srcInfo, err := objectAPI.GetObjectInfo(srcBucket, srcObject)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
if objectAPI.IsEncryptionSupported() {
|
|
if apiErr, _ := DecryptCopyObjectInfo(&srcInfo, r.Header); apiErr != ErrNone {
|
|
writeErrorResponse(w, apiErr, r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Get request range.
|
|
var hrange *httpRange
|
|
rangeHeader := r.Header.Get("x-amz-copy-source-range")
|
|
if rangeHeader != "" {
|
|
if hrange, err = parseCopyPartRange(rangeHeader, srcInfo.Size); err != nil {
|
|
// Handle only errInvalidRange
|
|
// Ignore other parse error and treat it as regular Get request like Amazon S3.
|
|
errorIf(err, "Unable to extract range %s", rangeHeader)
|
|
writeCopyPartErr(w, err, r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
|
|
if checkCopyObjectPartPreconditions(w, r, srcInfo) {
|
|
return
|
|
}
|
|
|
|
// Get the object.
|
|
var startOffset int64
|
|
length := srcInfo.Size
|
|
if hrange != nil {
|
|
length = hrange.getLength()
|
|
startOffset = hrange.offsetBegin
|
|
}
|
|
|
|
/// maximum copy size for multipart objects in a single operation
|
|
if isMaxAllowedPartSize(length) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Initialize pipe.
|
|
pipeReader, pipeWriter := io.Pipe()
|
|
|
|
var writer io.WriteCloser = pipeWriter
|
|
var reader io.Reader = pipeReader
|
|
srcInfo.Reader, err = hash.NewReader(reader, length, "", "")
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
if objectAPI.IsEncryptionSupported() {
|
|
var li ListPartsInfo
|
|
li, err = objectAPI.ListObjectParts(dstBucket, dstObject, uploadID, 0, 1)
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
sseCopyC := hasSSECopyCustomerHeader(r.Header)
|
|
if sseCopyC {
|
|
// Response writer should be limited early on for decryption upto required length,
|
|
// additionally also skipping mod(offset)64KiB boundaries.
|
|
writer = ioutil.LimitedWriter(writer, startOffset%(64*1024), length)
|
|
writer, startOffset, length, err = DecryptBlocksRequest(pipeWriter, r, startOffset, length, srcInfo, true)
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if li.IsEncrypted() {
|
|
if !hasSSECustomerHeader(r.Header) {
|
|
writeErrorResponse(w, ErrSSEMultipartEncrypted, r.URL)
|
|
return
|
|
}
|
|
var key []byte
|
|
key, err = ParseSSECustomerRequest(r)
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Calculating object encryption key
|
|
var objectEncryptionKey []byte
|
|
objectEncryptionKey, err = decryptObjectInfo(key, li.UserDefined)
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
reader, err = sio.EncryptReader(pipeReader, sio.Config{Key: objectEncryptionKey})
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
size := length
|
|
if !sseCopyC {
|
|
info := ObjectInfo{Size: length}
|
|
size = info.EncryptedSize()
|
|
}
|
|
|
|
srcInfo.Reader, err = hash.NewReader(reader, size, "", "")
|
|
if err != nil {
|
|
pipeWriter.CloseWithError(err)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
srcInfo.Writer = writer
|
|
|
|
// Copy source object to destination, if source and destination
|
|
// object is same then only metadata is updated.
|
|
partInfo, err := objectAPI.CopyObjectPart(srcBucket, srcObject, dstBucket,
|
|
dstObject, uploadID, partID, startOffset, length, srcInfo)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Close the pipe after successful operation.
|
|
pipeReader.Close()
|
|
|
|
response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// PutObjectPartHandler - uploads an incoming part for an ongoing multipart operation.
|
|
func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
// get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidDigest, r.URL)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, throw away
|
|
size := r.ContentLength
|
|
|
|
rAuthType := getRequestAuthType(r)
|
|
// For auth type streaming signature, we need to gather a different content length.
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for multipart objects in a single operation
|
|
if isMaxAllowedPartSize(size) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidPart, r.URL)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
|
|
var (
|
|
md5hex = hex.EncodeToString(md5Bytes)
|
|
sha256hex = ""
|
|
reader io.Reader
|
|
)
|
|
reader = r.Body
|
|
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path,
|
|
r.Referer(), handlers.GetSourceIP(r), r.URL.Query()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
var s3Error APIErrorCode
|
|
reader, s3Error = newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := reqSignatureV4Verify(r, globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256hex = getContentSha256Cksum(r)
|
|
}
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex)
|
|
if err != nil {
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
if objectAPI.IsEncryptionSupported() {
|
|
var li ListPartsInfo
|
|
li, err = objectAPI.ListObjectParts(bucket, object, uploadID, 0, 1)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
if li.IsEncrypted() {
|
|
if !hasSSECustomerHeader(r.Header) {
|
|
writeErrorResponse(w, ErrSSEMultipartEncrypted, r.URL)
|
|
return
|
|
}
|
|
var key []byte
|
|
key, err = ParseSSECustomerRequest(r)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Calculating object encryption key
|
|
var objectEncryptionKey []byte
|
|
objectEncryptionKey, err = decryptObjectInfo(key, li.UserDefined)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
var partIDbin [4]byte
|
|
binary.LittleEndian.PutUint32(partIDbin[:], uint32(partID)) // marshal part ID
|
|
|
|
mac := hmac.New(sha256.New, objectEncryptionKey) // derive part encryption key from part ID and object key
|
|
mac.Write(partIDbin[:])
|
|
partEncryptionKey := mac.Sum(nil)
|
|
|
|
reader, err = sio.EncryptReader(reader, sio.Config{Key: partEncryptionKey})
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
info := ObjectInfo{Size: size}
|
|
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "") // do not try to verify encrypted content
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
partInfo, err := objectAPI.PutObjectPart(bucket, object, uploadID, partID, hashReader)
|
|
if err != nil {
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
if partInfo.ETag != "" {
|
|
w.Header().Set("ETag", "\""+partInfo.ETag+"\"")
|
|
}
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectAPIHandlers) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:AbortMultipartUpload", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
if err := objectAPI.AbortMultipartUpload(bucket, object, uploadID); err != nil {
|
|
errorIf(err, "AbortMultipartUpload failed")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:ListMultipartUploadParts", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
|
|
if partNumberMarker < 0 {
|
|
writeErrorResponse(w, ErrInvalidPartNumberMarker, r.URL)
|
|
return
|
|
}
|
|
if maxParts < 0 {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
listPartsInfo, err := objectAPI.ListObjectParts(bucket, object, uploadID, partNumberMarker, maxParts)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
response := generateListPartsResponse(listPartsInfo)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(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"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:PutObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Get upload id.
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
|
|
completeMultipartBytes, err := goioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
complMultipartUpload := &CompleteMultipartUpload{}
|
|
if err = xml.Unmarshal(completeMultipartBytes, complMultipartUpload); err != nil {
|
|
writeErrorResponse(w, ErrMalformedXML, r.URL)
|
|
return
|
|
}
|
|
if len(complMultipartUpload.Parts) == 0 {
|
|
writeErrorResponse(w, ErrMalformedXML, r.URL)
|
|
return
|
|
}
|
|
if !sort.IsSorted(CompletedParts(complMultipartUpload.Parts)) {
|
|
writeErrorResponse(w, ErrInvalidPartOrder, r.URL)
|
|
return
|
|
}
|
|
|
|
// Complete parts.
|
|
var completeParts []CompletePart
|
|
for _, part := range complMultipartUpload.Parts {
|
|
part.ETag = canonicalizeETag(part.ETag)
|
|
completeParts = append(completeParts, part)
|
|
}
|
|
|
|
objInfo, err := objectAPI.CompleteMultipartUpload(bucket, object, uploadID, completeParts)
|
|
if err != nil {
|
|
err = errors.Cause(err)
|
|
switch oErr := err.(type) {
|
|
case PartTooSmall:
|
|
// Write part too small error.
|
|
writePartSmallErrorResponse(w, r, oErr)
|
|
default:
|
|
// Handle all other generic issues.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Get object location.
|
|
location := getLocation(r)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, objInfo.ETag)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
|
|
// Set etag.
|
|
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCompleteMultipartUpload,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
/// 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"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:DeleteObject", globalServerConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
|
|
// Ignore delete object errors while replying to client, since we are
|
|
// suppposed to reply only 204. Additionally log the error for
|
|
// investigation.
|
|
if err := deleteObject(objectAPI, bucket, object, r); err != nil {
|
|
errorIf(err, "Unable to delete an object %s", pathJoin(bucket, object))
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|