1487 lines
43 KiB
Go
1487 lines
43 KiB
Go
/*
|
||
* 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
|
||
* 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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||
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import (
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||
"context"
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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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||
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||
"github.com/gorilla/mux"
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||
"github.com/minio/minio/cmd/logger"
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||
"github.com/minio/minio/pkg/event"
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||
"github.com/minio/minio/pkg/hash"
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||
"github.com/minio/minio/pkg/ioutil"
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||
"github.com/minio/minio/pkg/policy"
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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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||
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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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||
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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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||
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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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||
ctx := newContext(r, "GetObject")
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||
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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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||
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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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||
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||
getObjectInfo := objectAPI.GetObjectInfo
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||
if api.CacheAPI() != nil {
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||
getObjectInfo = api.CacheAPI().GetObjectInfo
|
||
}
|
||
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||
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, bucket, object); s3Error != ErrNone {
|
||
if getRequestAuthType(r) == authTypeAnonymous {
|
||
// As per "Permission" section in https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
|
||
// If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission.
|
||
// * If you have the s3:ListBucket permission on the bucket, Amazon S3 will return an HTTP status code 404 ("no such key") error.
|
||
// * if you don’t have the s3:ListBucket permission, Amazon S3 will return an HTTP status code 403 ("access denied") error.`
|
||
if globalPolicySys.IsAllowed(policy.Args{
|
||
Action: policy.ListBucketAction,
|
||
BucketName: bucket,
|
||
ConditionValues: getConditionValues(r, ""),
|
||
IsOwner: false,
|
||
}) {
|
||
_, err := getObjectInfo(ctx, bucket, object)
|
||
if toAPIErrorCode(err) == ErrNoSuchKey {
|
||
s3Error = ErrNoSuchKey
|
||
}
|
||
}
|
||
}
|
||
writeErrorResponse(w, s3Error, r.URL)
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||
return
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||
}
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||
|
||
objInfo, err := getObjectInfo(ctx, bucket, object)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if apiErr, _ := DecryptObjectInfo(&objInfo, r.Header); apiErr != ErrNone {
|
||
writeErrorResponse(w, apiErr, r.URL)
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||
return
|
||
}
|
||
}
|
||
|
||
// Get request range.
|
||
var hrange *httpRange
|
||
rangeHeader := r.Header.Get("Range")
|
||
if rangeHeader != "" {
|
||
if hrange, err = parseRequestRange(rangeHeader, objInfo.Size); err != nil {
|
||
// Handle only errInvalidRange
|
||
// Ignore other parse error and treat it as regular Get request like Amazon S3.
|
||
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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||
logger.LogIf(ctx, err)
|
||
}
|
||
}
|
||
|
||
// Validate pre-conditions if any.
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||
if checkPreconditions(w, r, objInfo) {
|
||
return
|
||
}
|
||
|
||
// Get the object.
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||
var startOffset int64
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||
length := objInfo.Size
|
||
if hrange != nil {
|
||
startOffset = hrange.offsetBegin
|
||
length = hrange.getLength()
|
||
}
|
||
|
||
var writer io.Writer
|
||
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,
|
||
// 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)
|
||
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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||
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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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||
getObject := objectAPI.GetObject
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||
if api.CacheAPI() != nil && !hasSSECustomerHeader(r.Header) {
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||
getObject = api.CacheAPI().GetObject
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||
}
|
||
|
||
// Reads the object at startOffset and writes to mw.
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||
if err = getObject(ctx, bucket, object, startOffset, length, httpWriter, objInfo.ETag); 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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||
}
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||
httpWriter.Close()
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||
return
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||
}
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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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||
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||
// Notify object accessed via a GET request.
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||
sendEvent(eventArgs{
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||
EventName: event.ObjectAccessedGet,
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||
BucketName: bucket,
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||
Object: 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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||
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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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ctx := newContext(r, "HeadObject")
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||
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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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||
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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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||
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||
getObjectInfo := objectAPI.GetObjectInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectInfo = api.CacheAPI().GetObjectInfo
|
||
}
|
||
|
||
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, bucket, object); s3Error != ErrNone {
|
||
if getRequestAuthType(r) == authTypeAnonymous {
|
||
// As per "Permission" section in https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectHEAD.html
|
||
// If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission.
|
||
// * If you have the s3:ListBucket permission on the bucket, Amazon S3 will return an HTTP status code 404 ("no such key") error.
|
||
// * if you don’t have the s3:ListBucket permission, Amazon S3 will return an HTTP status code 403 ("access denied") error.`
|
||
if globalPolicySys.IsAllowed(policy.Args{
|
||
Action: policy.ListBucketAction,
|
||
BucketName: bucket,
|
||
ConditionValues: getConditionValues(r, ""),
|
||
IsOwner: false,
|
||
}) {
|
||
_, err := getObjectInfo(ctx, bucket, object)
|
||
if toAPIErrorCode(err) == ErrNoSuchKey {
|
||
s3Error = ErrNoSuchKey
|
||
}
|
||
}
|
||
}
|
||
writeErrorResponseHeadersOnly(w, s3Error)
|
||
return
|
||
}
|
||
|
||
objInfo, err := getObjectInfo(ctx, bucket, object)
|
||
if err != nil {
|
||
writeErrorResponseHeadersOnly(w, toAPIErrorCode(err))
|
||
return
|
||
}
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if apiErr, encrypted := DecryptObjectInfo(&objInfo, r.Header); apiErr != ErrNone {
|
||
writeErrorResponse(w, apiErr, r.URL)
|
||
return
|
||
} else if encrypted {
|
||
if _, err = DecryptRequest(w, r, objInfo.UserDefined); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
w.Header().Set(SSECustomerAlgorithm, r.Header.Get(SSECustomerAlgorithm))
|
||
w.Header().Set(SSECustomerKeyMD5, r.Header.Get(SSECustomerKeyMD5))
|
||
}
|
||
}
|
||
|
||
// Validate pre-conditions if any.
|
||
if checkPreconditions(w, r, objInfo) {
|
||
return
|
||
}
|
||
|
||
// Set standard object headers.
|
||
setObjectHeaders(w, objInfo, nil)
|
||
|
||
// Set any additional requested response headers.
|
||
setHeadGetRespHeaders(w, r.URL.Query())
|
||
|
||
// Successful response.
|
||
w.WriteHeader(http.StatusOK)
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object accessed via a HEAD request.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectAccessedHead,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
UserAgent: r.UserAgent(),
|
||
Host: host,
|
||
Port: port,
|
||
})
|
||
}
|
||
|
||
// Extract metadata relevant for an CopyObject operation based on conditional
|
||
// header values specified in X-Amz-Metadata-Directive.
|
||
func getCpObjMetadataFromHeader(ctx context.Context, header http.Header, userMeta map[string]string) (map[string]string, error) {
|
||
// Make a copy of the supplied metadata to avoid
|
||
// to change the original one.
|
||
defaultMeta := make(map[string]string, len(userMeta))
|
||
for k, v := range userMeta {
|
||
defaultMeta[k] = v
|
||
}
|
||
|
||
// if x-amz-metadata-directive says REPLACE then
|
||
// we extract metadata from the input headers.
|
||
if isMetadataReplace(header) {
|
||
return extractMetadataFromHeader(ctx, header)
|
||
}
|
||
|
||
// if x-amz-metadata-directive says COPY then we
|
||
// return the default metadata.
|
||
if isMetadataCopy(header) {
|
||
return defaultMeta, nil
|
||
}
|
||
|
||
// Copy is default behavior if not x-amz-metadata-directive is set.
|
||
return defaultMeta, nil
|
||
}
|
||
|
||
// CopyObjectHandler - Copy Object
|
||
// ----------
|
||
// This implementation of the PUT operation adds an object to a bucket
|
||
// while reading the object from another source.
|
||
func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, "CopyObject")
|
||
|
||
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(ctx, r, policy.PutObjectAction, dstBucket, dstObject); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// TODO: Reject requests where body/payload is present, for now we don't even read it.
|
||
|
||
// 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
|
||
}
|
||
|
||
// Check if metadata directive is valid.
|
||
if !isMetadataDirectiveValid(r.Header) {
|
||
writeErrorResponse(w, ErrInvalidMetadataDirective, r.URL)
|
||
return
|
||
}
|
||
|
||
cpSrcDstSame := isStringEqual(pathJoin(srcBucket, srcObject), pathJoin(dstBucket, dstObject))
|
||
srcInfo, err := objectAPI.GetObjectInfo(ctx, srcBucket, srcObject)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, dstBucket, dstObject); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if apiErr, _ := DecryptCopyObjectInfo(&srcInfo, r.Header); apiErr != ErrNone {
|
||
writeErrorResponse(w, apiErr, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
|
||
if checkCopyObjectPreconditions(w, r, srcInfo) {
|
||
return
|
||
}
|
||
|
||
/// maximum Upload size for object in a single CopyObject operation.
|
||
if isMaxObjectSize(srcInfo.Size) {
|
||
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
||
return
|
||
}
|
||
|
||
// Initialize pipe.
|
||
pipeReader, pipeWriter := io.Pipe()
|
||
|
||
// We have to copy metadata only if source and destination are same.
|
||
// this changes for encryption which can be observed below.
|
||
if cpSrcDstSame {
|
||
srcInfo.metadataOnly = true
|
||
}
|
||
|
||
var writer io.WriteCloser = pipeWriter
|
||
var reader io.Reader = pipeReader
|
||
|
||
srcInfo.Reader, err = hash.NewReader(reader, srcInfo.Size, "", "")
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Save the original size for later use when we want to copy
|
||
// encrypted file into an unencrypted one.
|
||
size := srcInfo.Size
|
||
|
||
var encMetadata = make(map[string]string)
|
||
if objectAPI.IsEncryptionSupported() {
|
||
var oldKey, newKey []byte
|
||
sseCopyC := hasSSECopyCustomerHeader(r.Header)
|
||
sseC := hasSSECustomerHeader(r.Header)
|
||
if sseC {
|
||
newKey, err = ParseSSECustomerRequest(r)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
// AWS S3 implementation requires us to only rotate keys
|
||
// when/ both keys are provided and destination is same
|
||
// otherwise we proceed to encrypt/decrypt.
|
||
if sseCopyC && sseC && cpSrcDstSame {
|
||
// Get the old key which needs to be rotated.
|
||
oldKey, err = ParseSSECopyCustomerRequest(r)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
for k, v := range srcInfo.UserDefined {
|
||
encMetadata[k] = v
|
||
}
|
||
if err = rotateKey(oldKey, newKey, encMetadata); err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Since we are rotating the keys, make sure to update the metadata.
|
||
srcInfo.metadataOnly = true
|
||
} else {
|
||
if sseCopyC {
|
||
// Source is encrypted make sure to save the encrypted size.
|
||
writer = ioutil.LimitedWriter(writer, 0, srcInfo.Size)
|
||
writer, srcInfo.Size, err = DecryptAllBlocksCopyRequest(writer, r, srcInfo)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
// We are not only copying just metadata instead
|
||
// we are creating a new object at this point, even
|
||
// if source and destination are same objects.
|
||
srcInfo.metadataOnly = false
|
||
if sseC {
|
||
size = srcInfo.Size
|
||
}
|
||
}
|
||
if sseC {
|
||
reader, err = newEncryptReader(pipeReader, newKey, encMetadata)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
// We are not only copying just metadata instead
|
||
// we are creating a new object at this point, even
|
||
// if source and destination are same objects.
|
||
srcInfo.metadataOnly = false
|
||
if !sseCopyC {
|
||
size = srcInfo.EncryptedSize()
|
||
}
|
||
}
|
||
srcInfo.Reader, err = hash.NewReader(reader, size, "", "") // do not try to verify encrypted content
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
}
|
||
srcInfo.Writer = writer
|
||
|
||
srcInfo.UserDefined, err = getCpObjMetadataFromHeader(ctx, r.Header, srcInfo.UserDefined)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
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 {
|
||
srcInfo.UserDefined[k] = v
|
||
}
|
||
|
||
// Check if x-amz-metadata-directive was not set to REPLACE and source,
|
||
// desination are same objects. Apply this restriction also when
|
||
// metadataOnly is true indicating that we are not overwriting the object.
|
||
// if encryption is enabled we do not need explicit "REPLACE" metadata to
|
||
// be enabled as well - this is to allow for key-rotation.
|
||
if !isMetadataReplace(r.Header) && srcInfo.metadataOnly && !srcInfo.IsEncrypted() {
|
||
pipeWriter.CloseWithError(fmt.Errorf("invalid copy dest"))
|
||
// If x-amz-metadata-directive is not set to REPLACE then we need
|
||
// to error out if source and destination are same.
|
||
writeErrorResponse(w, ErrInvalidCopyDest, r.URL)
|
||
return
|
||
}
|
||
|
||
// Copy source object to destination, if source and destination
|
||
// object is same then only metadata is updated.
|
||
objInfo, err := objectAPI.CopyObject(ctx, srcBucket, srcObject, dstBucket, dstObject, srcInfo)
|
||
if err != nil {
|
||
pipeWriter.CloseWithError(err)
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
pipeReader.Close()
|
||
|
||
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.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedCopy,
|
||
BucketName: dstBucket,
|
||
Object: 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) {
|
||
ctx := newContext(r, "PutObject")
|
||
|
||
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)
|
||
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 {
|
||
if sizeStr, ok := r.Header["X-Amz-Decoded-Content-Length"]; ok {
|
||
if sizeStr[0] == "" {
|
||
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
||
return
|
||
}
|
||
size, err = strconv.ParseInt(sizeStr[0], 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(ctx, r.Header)
|
||
if err != nil {
|
||
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
|
||
putObject = objectAPI.PutObject
|
||
)
|
||
reader = r.Body
|
||
switch rAuthType {
|
||
default:
|
||
// For all unknown auth types return error.
|
||
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
||
return
|
||
case authTypeAnonymous:
|
||
if !globalPolicySys.IsAllowed(policy.Args{
|
||
Action: policy.PutObjectAction,
|
||
BucketName: bucket,
|
||
ConditionValues: getConditionValues(r, ""),
|
||
IsOwner: false,
|
||
ObjectName: object,
|
||
}) {
|
||
writeErrorResponse(w, ErrAccessDenied, 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
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, bucket, object); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, 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
|
||
}
|
||
}
|
||
}
|
||
|
||
if api.CacheAPI() != nil && !hasSSECustomerHeader(r.Header) {
|
||
putObject = api.CacheAPI().PutObject
|
||
}
|
||
// Create the object..
|
||
objInfo, err := putObject(ctx, 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.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedPut,
|
||
BucketName: bucket,
|
||
Object: 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) {
|
||
ctx := newContext(r, "NewMultipartUpload")
|
||
|
||
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(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err := objectAPI.GetObjectInfo(ctx, bucket, object); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, 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(ctx, r.Header)
|
||
if err != nil {
|
||
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
|
||
}
|
||
|
||
newMultipartUpload := objectAPI.NewMultipartUpload
|
||
if api.CacheAPI() != nil {
|
||
newMultipartUpload = api.CacheAPI().NewMultipartUpload
|
||
}
|
||
uploadID, err := newMultipartUpload(ctx, 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) {
|
||
ctx := newContext(r, "CopyObjectPart")
|
||
|
||
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(ctx, r, policy.PutObjectAction, dstBucket, dstObject); 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(ctx, srcBucket, srcObject)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, dstBucket, dstObject); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, 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.
|
||
logger.GetReqInfo(ctx).AppendTags("rangeHeader", rangeHeader)
|
||
logger.LogIf(ctx, err)
|
||
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(ctx, 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(ctx, 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) {
|
||
ctx := newContext(r, "PutObjectPart")
|
||
|
||
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)
|
||
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 {
|
||
if sizeStr, ok := r.Header["X-Amz-Decoded-Content-Length"]; ok {
|
||
if sizeStr[0] == "" {
|
||
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
||
return
|
||
}
|
||
size, err = strconv.ParseInt(sizeStr[0], 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:
|
||
if !globalPolicySys.IsAllowed(policy.Args{
|
||
Action: policy.PutObjectAction,
|
||
BucketName: bucket,
|
||
ConditionValues: getConditionValues(r, ""),
|
||
IsOwner: false,
|
||
ObjectName: object,
|
||
}) {
|
||
writeErrorResponse(w, ErrAccessDenied, 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
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, bucket, object); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, 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
|
||
}
|
||
}
|
||
}
|
||
|
||
putObjectPart := objectAPI.PutObjectPart
|
||
if api.CacheAPI() != nil {
|
||
putObjectPart = api.CacheAPI().PutObjectPart
|
||
}
|
||
partInfo, err := putObjectPart(ctx, 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) {
|
||
ctx := newContext(r, "AbortMultipartUpload")
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
abortMultipartUpload := objectAPI.AbortMultipartUpload
|
||
if api.CacheAPI() != nil {
|
||
abortMultipartUpload = api.CacheAPI().AbortMultipartUpload
|
||
}
|
||
|
||
if s3Error := checkRequestAuthType(ctx, r, policy.AbortMultipartUploadAction, bucket, object); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err := objectAPI.GetObjectInfo(ctx, bucket, object); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
||
if err := abortMultipartUpload(ctx, bucket, object, uploadID); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
||
return
|
||
}
|
||
writeSuccessNoContent(w)
|
||
}
|
||
|
||
// ListObjectPartsHandler - List object parts
|
||
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, "ListObjectParts")
|
||
|
||
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(ctx, r, policy.ListMultipartUploadPartsAction, bucket, object); 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(ctx, 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) {
|
||
ctx := newContext(r, "CompleteMultipartUpload")
|
||
|
||
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(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err := objectAPI.GetObjectInfo(ctx, bucket, object); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, 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)
|
||
}
|
||
|
||
completeMultiPartUpload := objectAPI.CompleteMultipartUpload
|
||
if api.CacheAPI() != nil {
|
||
completeMultiPartUpload = api.CacheAPI().CompleteMultipartUpload
|
||
}
|
||
objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, completeParts)
|
||
if err != nil {
|
||
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 := getObjectLocation(r, globalDomainName, bucket, object)
|
||
// 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.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedCompleteMultipartUpload,
|
||
BucketName: bucket,
|
||
Object: 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) {
|
||
ctx := newContext(r, "DeleteObject")
|
||
|
||
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(ctx, r, policy.DeleteObjectAction, bucket, object); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
// Not required to check whether given object exists or not, because
|
||
// DeleteObject is always successful irrespective of object existence.
|
||
writeErrorResponse(w, ErrMethodNotAllowed, 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.
|
||
deleteObject(ctx, objectAPI, api.CacheAPI(), bucket, object, r)
|
||
writeSuccessNoContent(w)
|
||
}
|