mirror of https://github.com/minio/minio.git
2239 lines
67 KiB
Go
2239 lines
67 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.
|
||
* 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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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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||
"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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||
"strings"
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||
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||
snappy "github.com/golang/snappy"
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||
"github.com/gorilla/mux"
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||
"github.com/klauspost/readahead"
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||
miniogo "github.com/minio/minio-go"
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||
"github.com/minio/minio/cmd/crypto"
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||
"github.com/minio/minio/cmd/logger"
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||
"github.com/minio/minio/pkg/dns"
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||
"github.com/minio/minio/pkg/event"
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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"
|
||
"github.com/minio/minio/pkg/policy"
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||
"github.com/minio/minio/pkg/s3select"
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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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||
const (
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||
compressionAlgorithmV1 = "golang/snappy/LZ77"
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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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||
// SelectObjectContentHandler - GET Object?select
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||
// ----------
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||
// This implementation of the GET operation retrieves object content based
|
||
// on an SQL expression. In the request, along with the sql expression, you must
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||
// also specify a data serialization format (JSON, CSV) of the object.
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||
func (api objectAPIHandlers) SelectObjectContentHandler(w http.ResponseWriter, r *http.Request) {
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||
ctx := newContext(r, w, "SelectObject")
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||
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||
defer logger.AuditLog(w, r, "SelectObject")
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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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||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
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||
writeErrorResponse(w, ErrNotImplemented, r.URL)
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||
return
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||
}
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||
vars := mux.Vars(r)
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||
bucket := vars["bucket"]
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||
object := vars["object"]
|
||
|
||
// Check for auth type to return S3 compatible error.
|
||
// type to return the correct error (NoSuchKey vs AccessDenied)
|
||
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,
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||
BucketName: bucket,
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||
ConditionValues: getConditionValues(r, ""),
|
||
IsOwner: false,
|
||
}) {
|
||
getObjectInfo := objectAPI.GetObjectInfo
|
||
if api.CacheAPI() != nil {
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||
getObjectInfo = api.CacheAPI().GetObjectInfo
|
||
}
|
||
|
||
_, err := getObjectInfo(ctx, bucket, object, ObjectOptions{})
|
||
if toAPIErrorCode(ctx, err) == ErrNoSuchKey {
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||
s3Error = ErrNoSuchKey
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||
}
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||
}
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||
}
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||
writeErrorResponse(w, s3Error, r.URL)
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||
return
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||
}
|
||
|
||
// Get request range.
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||
rangeHeader := r.Header.Get("Range")
|
||
if rangeHeader != "" {
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||
writeErrorResponse(w, ErrUnsupportedRangeHeader, r.URL)
|
||
return
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||
}
|
||
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||
if r.ContentLength <= 0 {
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||
writeErrorResponse(w, ErrEmptyRequestBody, r.URL)
|
||
return
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||
}
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||
var selectReq s3select.ObjectSelectRequest
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||
if err := xmlDecoder(r.Body, &selectReq, r.ContentLength); err != nil {
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||
writeErrorResponse(w, ErrMalformedXML, r.URL)
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||
return
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||
}
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||
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||
if !strings.EqualFold(string(selectReq.ExpressionType), "SQL") {
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writeErrorResponse(w, ErrInvalidExpressionType, r.URL)
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||
return
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||
}
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||
if len(selectReq.Expression) >= s3select.MaxExpressionLength {
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writeErrorResponse(w, ErrExpressionTooLong, r.URL)
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||
return
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||
}
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||
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||
getObjectNInfo := objectAPI.GetObjectNInfo
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||
if api.CacheAPI() != nil {
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getObjectNInfo = api.CacheAPI().GetObjectNInfo
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}
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var opts ObjectOptions
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||
gr, err := getObjectNInfo(ctx, bucket, object, nil, r.Header, readLock, opts)
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||
if err != nil {
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writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
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||
return
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}
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defer gr.Close()
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objInfo := gr.ObjInfo
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||
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if selectReq.InputSerialization.CompressionType == s3select.SelectCompressionGZIP {
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if !strings.Contains(objInfo.ContentType, "gzip") {
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writeErrorResponse(w, ErrInvalidDataSource, r.URL)
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||
return
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}
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}
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||
if selectReq.InputSerialization.CompressionType == s3select.SelectCompressionBZIP {
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||
if !strings.Contains(objInfo.ContentType, "bzip") {
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writeErrorResponse(w, ErrInvalidDataSource, r.URL)
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||
return
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||
}
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}
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||
if selectReq.InputSerialization.CompressionType == "" {
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||
selectReq.InputSerialization.CompressionType = s3select.SelectCompressionNONE
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||
if !strings.Contains(objInfo.ContentType, "text/csv") && !strings.Contains(objInfo.ContentType, "application/json") {
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writeErrorResponse(w, ErrInvalidDataSource, r.URL)
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return
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}
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||
}
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||
if !strings.EqualFold(string(selectReq.ExpressionType), "SQL") {
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||
writeErrorResponse(w, ErrInvalidExpressionType, r.URL)
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||
return
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||
}
|
||
if len(selectReq.Expression) >= s3select.MaxExpressionLength {
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writeErrorResponse(w, ErrExpressionTooLong, r.URL)
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||
return
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||
}
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||
if selectReq.InputSerialization.CSV == nil && selectReq.InputSerialization.JSON == nil {
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writeErrorResponse(w, ErrInvalidRequestParameter, r.URL)
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||
return
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||
}
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||
if selectReq.OutputSerialization.CSV == nil && selectReq.OutputSerialization.JSON == nil {
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writeErrorResponse(w, ErrInvalidRequestParameter, r.URL)
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||
return
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||
}
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||
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||
if selectReq.InputSerialization.CSV != nil {
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||
if selectReq.InputSerialization.CSV.FileHeaderInfo != s3select.CSVFileHeaderInfoUse &&
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||
selectReq.InputSerialization.CSV.FileHeaderInfo != s3select.CSVFileHeaderInfoNone &&
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||
selectReq.InputSerialization.CSV.FileHeaderInfo != s3select.CSVFileHeaderInfoIgnore &&
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selectReq.InputSerialization.CSV.FileHeaderInfo != "" {
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||
writeErrorResponse(w, ErrInvalidFileHeaderInfo, r.URL)
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||
return
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||
}
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||
if selectReq.OutputSerialization.CSV.QuoteFields != s3select.CSVQuoteFieldsAlways &&
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||
selectReq.OutputSerialization.CSV.QuoteFields != s3select.CSVQuoteFieldsAsNeeded &&
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||
selectReq.OutputSerialization.CSV.QuoteFields != "" {
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||
writeErrorResponse(w, ErrInvalidQuoteFields, r.URL)
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||
return
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||
}
|
||
if len(selectReq.InputSerialization.CSV.RecordDelimiter) > 2 {
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||
writeErrorResponse(w, ErrInvalidRequestParameter, r.URL)
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||
return
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||
}
|
||
|
||
}
|
||
if selectReq.InputSerialization.JSON != nil {
|
||
if selectReq.InputSerialization.JSON.Type != s3select.JSONLinesType {
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||
writeErrorResponse(w, ErrInvalidJSONType, r.URL)
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||
return
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||
}
|
||
|
||
}
|
||
|
||
// Set encryption response headers
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if crypto.IsEncrypted(objInfo.UserDefined) {
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||
switch {
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||
case crypto.S3.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
|
||
case crypto.SSEC.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
|
||
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
|
||
}
|
||
}
|
||
}
|
||
|
||
reader := readahead.NewReader(gr)
|
||
defer reader.Close()
|
||
|
||
size := objInfo.Size
|
||
if objInfo.IsCompressed() {
|
||
size = objInfo.GetActualSize()
|
||
if size < 0 {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, errInvalidDecompressedSize), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
s3s, err := s3select.New(reader, size, selectReq)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Parses the select query and checks for an error
|
||
_, _, _, _, _, _, err = s3select.ParseSelect(s3s)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Executes the query on data-set
|
||
s3select.Execute(w, s3s)
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object accessed via a GET request.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectAccessedGet,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
UserAgent: r.UserAgent(),
|
||
Host: host,
|
||
Port: port,
|
||
})
|
||
}
|
||
|
||
// GetObjectHandler - GET Object
|
||
// ----------
|
||
// This implementation of the GET operation retrieves object. To use GET,
|
||
// you must have READ access to the object.
|
||
func (api objectAPIHandlers) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "GetObject")
|
||
|
||
defer logger.AuditLog(w, r, "GetObject")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3.IsRequested(r.Header) || crypto.S3KMS.IsRequested(r.Header) { // If SSE-S3 or SSE-KMS present -> AWS fails with undefined error
|
||
writeErrorResponse(w, ErrBadRequest, r.URL)
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
var (
|
||
opts ObjectOptions
|
||
err error
|
||
)
|
||
// Check for auth type to return S3 compatible error.
|
||
// type to return the correct error (NoSuchKey vs AccessDenied)
|
||
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,
|
||
}) {
|
||
getObjectInfo := objectAPI.GetObjectInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectInfo = api.CacheAPI().GetObjectInfo
|
||
}
|
||
|
||
_, err = getObjectInfo(ctx, bucket, object, opts)
|
||
if toAPIErrorCode(ctx, err) == ErrNoSuchKey {
|
||
s3Error = ErrNoSuchKey
|
||
}
|
||
}
|
||
}
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
getObjectNInfo := objectAPI.GetObjectNInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectNInfo = api.CacheAPI().GetObjectNInfo
|
||
}
|
||
|
||
// Get request range.
|
||
var rs *HTTPRangeSpec
|
||
rangeHeader := r.Header.Get("Range")
|
||
if rangeHeader != "" {
|
||
if rs, err = parseRequestRangeSpec(rangeHeader); err != nil {
|
||
// Handle only errInvalidRange. Ignore other
|
||
// parse error and treat it as regular Get
|
||
// request like Amazon S3.
|
||
if err == errInvalidRange {
|
||
writeErrorResponse(w, ErrInvalidRange, r.URL)
|
||
return
|
||
}
|
||
|
||
logger.LogIf(ctx, err)
|
||
}
|
||
}
|
||
|
||
gr, err := getObjectNInfo(ctx, bucket, object, rs, r.Header, readLock, opts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
defer gr.Close()
|
||
|
||
objInfo := gr.ObjInfo
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if _, err = DecryptObjectInfo(&objInfo, r.Header); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Validate pre-conditions if any.
|
||
if checkPreconditions(w, r, objInfo) {
|
||
return
|
||
}
|
||
|
||
// Set encryption response headers
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if crypto.IsEncrypted(objInfo.UserDefined) {
|
||
switch {
|
||
case crypto.S3.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
|
||
case crypto.SSEC.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
|
||
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
|
||
}
|
||
}
|
||
}
|
||
|
||
if err = setObjectHeaders(w, objInfo, rs); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
setHeadGetRespHeaders(w, r.URL.Query())
|
||
|
||
statusCodeWritten := false
|
||
httpWriter := ioutil.WriteOnClose(w)
|
||
if rs != nil {
|
||
statusCodeWritten = true
|
||
w.WriteHeader(http.StatusPartialContent)
|
||
}
|
||
|
||
// Write object content to response body
|
||
if _, err = io.Copy(httpWriter, gr); err != nil {
|
||
if !httpWriter.HasWritten() && !statusCodeWritten { // write error response only if no data or headers has been written to client yet
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
}
|
||
return
|
||
}
|
||
|
||
if err = httpWriter.Close(); err != nil {
|
||
if !httpWriter.HasWritten() && !statusCodeWritten { // write error response only if no data or headers has been written to client yet
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object accessed via a GET request.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectAccessedGet,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
UserAgent: r.UserAgent(),
|
||
Host: host,
|
||
Port: port,
|
||
})
|
||
}
|
||
|
||
// HeadObjectHandler - HEAD Object
|
||
// -----------
|
||
// The HEAD operation retrieves metadata from an object without returning the object itself.
|
||
func (api objectAPIHandlers) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "HeadObject")
|
||
|
||
defer logger.AuditLog(w, r, "HeadObject")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponseHeadersOnly(w, ErrServerNotInitialized)
|
||
return
|
||
}
|
||
if crypto.S3.IsRequested(r.Header) || crypto.S3KMS.IsRequested(r.Header) { // If SSE-S3 or SSE-KMS present -> AWS fails with undefined error
|
||
writeErrorResponse(w, ErrBadRequest, r.URL)
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
getObjectInfo := objectAPI.GetObjectInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectInfo = api.CacheAPI().GetObjectInfo
|
||
}
|
||
|
||
var (
|
||
opts ObjectOptions
|
||
err error
|
||
)
|
||
|
||
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, opts)
|
||
if toAPIErrorCode(ctx, err) == ErrNoSuchKey {
|
||
s3Error = ErrNoSuchKey
|
||
}
|
||
}
|
||
}
|
||
writeErrorResponseHeadersOnly(w, s3Error)
|
||
return
|
||
}
|
||
|
||
// Get request range.
|
||
var rs *HTTPRangeSpec
|
||
rangeHeader := r.Header.Get("Range")
|
||
if rangeHeader != "" {
|
||
if rs, err = parseRequestRangeSpec(rangeHeader); err != nil {
|
||
// Handle only errInvalidRange. Ignore other
|
||
// parse error and treat it as regular Get
|
||
// request like Amazon S3.
|
||
if err == errInvalidRange {
|
||
writeErrorResponseHeadersOnly(w, ErrInvalidRange)
|
||
return
|
||
}
|
||
|
||
logger.LogIf(ctx, err)
|
||
}
|
||
}
|
||
|
||
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
|
||
if err != nil {
|
||
writeErrorResponseHeadersOnly(w, toAPIErrorCode(ctx, err))
|
||
return
|
||
}
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if _, err = DecryptObjectInfo(&objInfo, r.Header); err != nil {
|
||
writeErrorResponseHeadersOnly(w, toAPIErrorCode(ctx, err))
|
||
return
|
||
}
|
||
}
|
||
|
||
// Set encryption response headers
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if crypto.IsEncrypted(objInfo.UserDefined) {
|
||
switch {
|
||
case crypto.S3.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
|
||
case crypto.SSEC.IsEncrypted(objInfo.UserDefined):
|
||
// Validate the SSE-C Key set in the header.
|
||
if _, err = crypto.SSEC.UnsealObjectKey(r.Header, objInfo.UserDefined, bucket, object); err != nil {
|
||
writeErrorResponseHeadersOnly(w, toAPIErrorCode(ctx, err))
|
||
return
|
||
}
|
||
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
|
||
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
|
||
}
|
||
}
|
||
}
|
||
|
||
// Validate pre-conditions if any.
|
||
if checkPreconditions(w, r, objInfo) {
|
||
return
|
||
}
|
||
|
||
// Set standard object headers.
|
||
if err = setObjectHeaders(w, objInfo, rs); err != nil {
|
||
writeErrorResponseHeadersOnly(w, toAPIErrorCode(ctx, err))
|
||
return
|
||
}
|
||
|
||
// Set any additional requested response headers.
|
||
setHeadGetRespHeaders(w, r.URL.Query())
|
||
|
||
// Successful response.
|
||
if rs != nil {
|
||
w.WriteHeader(http.StatusPartialContent)
|
||
} else {
|
||
w.WriteHeader(http.StatusOK)
|
||
}
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object accessed via a HEAD request.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectAccessedHead,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
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, r *http.Request, 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(r.Header) {
|
||
return extractMetadata(ctx, r)
|
||
}
|
||
|
||
// if x-amz-metadata-directive says COPY then we
|
||
// return the default metadata.
|
||
if isMetadataCopy(r.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.
|
||
// Notice: The S3 client can send secret keys in headers for encryption related jobs,
|
||
// the handler should ensure to remove these keys before sending them to the object layer.
|
||
// Currently these keys are:
|
||
// - X-Amz-Server-Side-Encryption-Customer-Key
|
||
// - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key
|
||
func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "CopyObject")
|
||
|
||
defer logger.AuditLog(w, r, "CopyObject")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrNotImplemented, r.URL) // SSE-KMS is not supported
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
dstBucket := vars["bucket"]
|
||
dstObject := vars["object"]
|
||
|
||
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
|
||
}
|
||
|
||
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
// Check if metadata directive is valid.
|
||
if !isMetadataDirectiveValid(r.Header) {
|
||
writeErrorResponse(w, ErrInvalidMetadataDirective, r.URL)
|
||
return
|
||
}
|
||
|
||
var srcOpts, dstOpts ObjectOptions
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, dstBucket, dstObject, dstOpts); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
cpSrcDstSame := isStringEqual(pathJoin(srcBucket, srcObject), pathJoin(dstBucket, dstObject))
|
||
|
||
getObjectNInfo := objectAPI.GetObjectNInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectNInfo = api.CacheAPI().GetObjectNInfo
|
||
}
|
||
|
||
var lock = noLock
|
||
if !cpSrcDstSame {
|
||
lock = readLock
|
||
}
|
||
|
||
var rs *HTTPRangeSpec
|
||
gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, lock, srcOpts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
defer gr.Close()
|
||
srcInfo := gr.ObjInfo
|
||
|
||
// 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
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// Checks if a remote putobject call is needed for CopyObject operation
|
||
// 1. If source and destination bucket names are same, it means no call needed to etcd to get destination info
|
||
// 2. If destination bucket doesn't exist locally, only then a etcd call is needed
|
||
var isRemoteCallRequired = func(ctx context.Context, src, dst string, objAPI ObjectLayer) bool {
|
||
if src == dst {
|
||
return false
|
||
}
|
||
_, berr := objAPI.GetBucketInfo(ctx, dst)
|
||
return berr == toObjectErr(errVolumeNotFound, dst)
|
||
}
|
||
|
||
var reader io.Reader
|
||
var length = srcInfo.Size
|
||
|
||
// Set the actual size to the decrypted size if encrypted.
|
||
actualSize := srcInfo.Size
|
||
if crypto.IsEncrypted(srcInfo.UserDefined) {
|
||
actualSize, err = srcInfo.DecryptedSize()
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// No need to compress for remote etcd calls
|
||
// Pass the decompressed stream to such calls.
|
||
isCompressed := objectAPI.IsCompressionSupported() && isCompressible(r.Header, srcObject) && !isRemoteCallRequired(ctx, srcBucket, dstBucket, objectAPI)
|
||
if isCompressed {
|
||
// Storing the compression metadata.
|
||
srcInfo.UserDefined[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV1
|
||
srcInfo.UserDefined[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(actualSize, 10)
|
||
// Remove all source encrypted related metadata to
|
||
// avoid copying them in target object.
|
||
crypto.RemoveInternalEntries(srcInfo.UserDefined)
|
||
// Open a pipe for compression.
|
||
// Where pipeWriter is piped to srcInfo.Reader.
|
||
// gr writes to pipeWriter.
|
||
pipeReader, pipeWriter := io.Pipe()
|
||
reader = pipeReader
|
||
length = -1
|
||
|
||
snappyWriter := snappy.NewWriter(pipeWriter)
|
||
|
||
go func() {
|
||
// Compress the decompressed source object.
|
||
_, cerr := io.Copy(snappyWriter, gr)
|
||
snappyWriter.Close()
|
||
pipeWriter.CloseWithError(cerr)
|
||
}()
|
||
} else {
|
||
// Remove the metadata for remote calls.
|
||
delete(srcInfo.UserDefined, ReservedMetadataPrefix+"compression")
|
||
delete(srcInfo.UserDefined, ReservedMetadataPrefix+"actual-size")
|
||
reader = gr
|
||
}
|
||
|
||
srcInfo.Reader, err = hash.NewReader(reader, length, "", "", actualSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
rawReader := srcInfo.Reader
|
||
pReader := NewPutObjReader(srcInfo.Reader, srcInfo.Reader, nil)
|
||
var encMetadata = make(map[string]string)
|
||
if objectAPI.IsEncryptionSupported() && !isCompressed {
|
||
// Encryption parameters not applicable for this object.
|
||
if !crypto.IsEncrypted(srcInfo.UserDefined) && crypto.SSECopy.IsRequested(r.Header) {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, errInvalidEncryptionParameters), r.URL)
|
||
return
|
||
}
|
||
// Encryption parameters not present for this object.
|
||
if crypto.SSEC.IsEncrypted(srcInfo.UserDefined) && !crypto.SSECopy.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrInvalidSSECustomerAlgorithm, r.URL)
|
||
return
|
||
}
|
||
|
||
var oldKey, newKey, objEncKey []byte
|
||
sseCopyS3 := crypto.S3.IsEncrypted(srcInfo.UserDefined)
|
||
sseCopyC := crypto.SSEC.IsEncrypted(srcInfo.UserDefined) && crypto.SSECopy.IsRequested(r.Header)
|
||
sseC := crypto.SSEC.IsRequested(r.Header)
|
||
sseS3 := crypto.S3.IsRequested(r.Header)
|
||
|
||
isSourceEncrypted := sseCopyC || sseCopyS3
|
||
isTargetEncrypted := sseC || sseS3
|
||
|
||
if sseC {
|
||
newKey, err = ParseSSECustomerRequest(r)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// If src == dst and either
|
||
// - the object is encrypted using SSE-C and two different SSE-C keys are present
|
||
// - the object is encrypted using SSE-S3 and the SSE-S3 header is present
|
||
// than execute a key rotation.
|
||
if cpSrcDstSame && ((sseCopyC && sseC) || (sseS3 && sseCopyS3)) {
|
||
if sseCopyC && sseC {
|
||
oldKey, err = ParseSSECopyCustomerRequest(r.Header, srcInfo.UserDefined)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
for k, v := range srcInfo.UserDefined {
|
||
encMetadata[k] = v
|
||
}
|
||
|
||
// In case of SSE-S3 oldKey and newKey aren't used - the KMS manages the keys.
|
||
if err = rotateKey(oldKey, newKey, srcBucket, srcObject, encMetadata); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Since we are rotating the keys, make sure to update the metadata.
|
||
srcInfo.metadataOnly = true
|
||
} else {
|
||
if isSourceEncrypted || isTargetEncrypted {
|
||
// 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
|
||
}
|
||
|
||
// Calculate the size of the target object
|
||
var targetSize int64
|
||
|
||
switch {
|
||
case !isSourceEncrypted && !isTargetEncrypted:
|
||
fallthrough
|
||
case isSourceEncrypted && isTargetEncrypted:
|
||
targetSize = srcInfo.Size
|
||
// Source not encrypted and target encrypted
|
||
case !isSourceEncrypted && isTargetEncrypted:
|
||
targetSize = srcInfo.EncryptedSize()
|
||
case isSourceEncrypted && !isTargetEncrypted:
|
||
targetSize, _ = srcInfo.DecryptedSize()
|
||
}
|
||
if isTargetEncrypted {
|
||
reader, objEncKey, err = newEncryptReader(srcInfo.Reader, newKey, dstBucket, dstObject, encMetadata, sseS3)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
if isSourceEncrypted {
|
||
// Remove all source encrypted related metadata to
|
||
// avoid copying them in target object.
|
||
crypto.RemoveInternalEntries(srcInfo.UserDefined)
|
||
}
|
||
|
||
srcInfo.Reader, err = hash.NewReader(reader, targetSize, "", "", targetSize) // do not try to verify encrypted content
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
pReader = NewPutObjReader(rawReader, srcInfo.Reader, objEncKey)
|
||
}
|
||
}
|
||
|
||
srcInfo.PutObjReader = pReader
|
||
|
||
srcInfo.UserDefined, err = getCpObjMetadataFromHeader(ctx, r, srcInfo.UserDefined)
|
||
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 {
|
||
srcInfo.UserDefined[k] = v
|
||
}
|
||
|
||
// Ensure that metadata does not contain sensitive information
|
||
crypto.RemoveSensitiveEntries(srcInfo.UserDefined)
|
||
|
||
// 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 && !crypto.IsEncrypted(srcInfo.UserDefined) {
|
||
// 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
|
||
}
|
||
|
||
var objInfo ObjectInfo
|
||
|
||
// Returns a minio-go Client configured to access remote host described by destDNSRecord
|
||
// Applicable only in a federated deployment
|
||
var getRemoteInstanceClient = func(host string, port int) (*miniogo.Core, error) {
|
||
// In a federated deployment, all the instances share config files and hence expected to have same
|
||
// credentials. So, access current instances creds and use it to create client for remote instance
|
||
endpoint := net.JoinHostPort(host, strconv.Itoa(port))
|
||
accessKey := globalServerConfig.Credential.AccessKey
|
||
secretKey := globalServerConfig.Credential.SecretKey
|
||
return miniogo.NewCore(endpoint, accessKey, secretKey, globalIsSSL)
|
||
}
|
||
|
||
if isRemoteCallRequired(ctx, srcBucket, dstBucket, objectAPI) {
|
||
if globalDNSConfig == nil {
|
||
writeErrorResponse(w, ErrNoSuchBucket, r.URL)
|
||
return
|
||
}
|
||
var dstRecords []dns.SrvRecord
|
||
if dstRecords, err = globalDNSConfig.Get(dstBucket); err == nil {
|
||
// Send PutObject request to appropriate instance (in federated deployment)
|
||
host, port := getRandomHostPort(dstRecords)
|
||
client, rerr := getRemoteInstanceClient(host, port)
|
||
if rerr != nil {
|
||
writeErrorResponse(w, ErrInternalError, r.URL)
|
||
return
|
||
}
|
||
remoteObjInfo, rerr := client.PutObject(dstBucket, dstObject, srcInfo.Reader, srcInfo.Size, "", "", srcInfo.UserDefined, dstOpts.ServerSideEncryption)
|
||
if rerr != nil {
|
||
writeErrorResponse(w, ErrInternalError, r.URL)
|
||
return
|
||
}
|
||
objInfo.ETag = remoteObjInfo.ETag
|
||
objInfo.ModTime = remoteObjInfo.LastModified
|
||
}
|
||
} else {
|
||
// 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, srcOpts, dstOpts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
response := generateCopyObjectResponse(getDecryptedETag(r.Header, objInfo, false), objInfo.ModTime)
|
||
encodedSuccessResponse := encodeResponse(response)
|
||
|
||
// Write success response.
|
||
writeSuccessResponseXML(w, encodedSuccessResponse)
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
if objInfo.IsCompressed() {
|
||
objInfo.Size = actualSize
|
||
}
|
||
|
||
// Notify object created event.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedCopy,
|
||
BucketName: dstBucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
UserAgent: r.UserAgent(),
|
||
Host: host,
|
||
Port: port,
|
||
})
|
||
}
|
||
|
||
// PutObjectHandler - PUT Object
|
||
// ----------
|
||
// This implementation of the PUT operation adds an object to a bucket.
|
||
// Notice: The S3 client can send secret keys in headers for encryption related jobs,
|
||
// the handler should ensure to remove these keys before sending them to the object layer.
|
||
// Currently these keys are:
|
||
// - X-Amz-Server-Side-Encryption-Customer-Key
|
||
// - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key
|
||
func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "PutObject")
|
||
|
||
defer logger.AuditLog(w, r, "PutObject")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrNotImplemented, r.URL) // SSE-KMS is not supported
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
// 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
|
||
}
|
||
|
||
// 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(ctx, 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
|
||
}
|
||
|
||
metadata, err := extractMetadata(ctx, r)
|
||
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
|
||
|
||
// Check if put is allowed
|
||
if s3Err = isPutAllowed(rAuthType, bucket, object, r); s3Err != ErrNone {
|
||
writeErrorResponse(w, s3Err, r.URL)
|
||
return
|
||
}
|
||
|
||
switch rAuthType {
|
||
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)
|
||
}
|
||
}
|
||
|
||
actualSize := size
|
||
|
||
if objectAPI.IsCompressionSupported() && isCompressible(r.Header, object) && size > 0 {
|
||
// Storing the compression metadata.
|
||
metadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV1
|
||
metadata[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(size, 10)
|
||
|
||
pipeReader, pipeWriter := io.Pipe()
|
||
snappyWriter := snappy.NewWriter(pipeWriter)
|
||
|
||
var actualReader *hash.Reader
|
||
actualReader, err = hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
go func() {
|
||
// Writing to the compressed writer.
|
||
_, cerr := io.CopyN(snappyWriter, actualReader, actualSize)
|
||
snappyWriter.Close()
|
||
pipeWriter.CloseWithError(cerr)
|
||
}()
|
||
|
||
// Set compression metrics.
|
||
size = -1 // Since compressed size is un-predictable.
|
||
md5hex = "" // Do not try to verify the content.
|
||
sha256hex = ""
|
||
reader = pipeReader
|
||
}
|
||
|
||
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
rawReader := hashReader
|
||
pReader := NewPutObjReader(rawReader, nil, nil)
|
||
|
||
var opts ObjectOptions
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, bucket, object, opts); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
var objectEncryptionKey []byte
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if hasServerSideEncryptionHeader(r.Header) && !hasSuffix(object, slashSeparator) { // handle SSE requests
|
||
reader, objectEncryptionKey, err = EncryptRequest(hashReader, r, bucket, object, metadata)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
info := ObjectInfo{Size: size}
|
||
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", size) // do not try to verify encrypted content
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
pReader = NewPutObjReader(rawReader, hashReader, objectEncryptionKey)
|
||
}
|
||
}
|
||
|
||
// Ensure that metadata does not contain sensitive information
|
||
crypto.RemoveSensitiveEntries(metadata)
|
||
|
||
if api.CacheAPI() != nil && !hasServerSideEncryptionHeader(r.Header) {
|
||
putObject = api.CacheAPI().PutObject
|
||
}
|
||
|
||
// Create the object..
|
||
objInfo, err := putObject(ctx, bucket, object, pReader, metadata, opts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
if objInfo.IsCompressed() {
|
||
// Ignore compressed ETag.
|
||
objInfo.ETag = objInfo.ETag + "-1"
|
||
}
|
||
if hasServerSideEncryptionHeader(r.Header) {
|
||
w.Header().Set("ETag", "\""+getDecryptedETag(r.Header, objInfo, false)+"\"")
|
||
} else {
|
||
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
||
}
|
||
if objectAPI.IsEncryptionSupported() {
|
||
if crypto.IsEncrypted(objInfo.UserDefined) {
|
||
switch {
|
||
case crypto.S3.IsEncrypted(objInfo.UserDefined):
|
||
w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
|
||
case crypto.SSEC.IsRequested(r.Header):
|
||
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
|
||
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
|
||
}
|
||
}
|
||
}
|
||
|
||
writeSuccessResponseHeadersOnly(w)
|
||
|
||
// Get host and port from Request.RemoteAddr.
|
||
host, port, err := net.SplitHostPort(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object created event.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedPut,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
UserAgent: r.UserAgent(),
|
||
Host: host,
|
||
Port: port,
|
||
})
|
||
}
|
||
|
||
/// Multipart objectAPIHandlers
|
||
|
||
// NewMultipartUploadHandler - New multipart upload.
|
||
// Notice: The S3 client can send secret keys in headers for encryption related jobs,
|
||
// the handler should ensure to remove these keys before sending them to the object layer.
|
||
// Currently these keys are:
|
||
// - X-Amz-Server-Side-Encryption-Customer-Key
|
||
// - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key
|
||
func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "NewMultipartUpload")
|
||
|
||
defer logger.AuditLog(w, r, "NewMultipartUpload")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrNotImplemented, r.URL) // SSE-KMS is not supported
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
var (
|
||
opts ObjectOptions
|
||
err error
|
||
)
|
||
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, opts); 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 hasServerSideEncryptionHeader(r.Header) {
|
||
if err = setEncryptionMetadata(r, bucket, object, encMetadata); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, 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 := extractMetadata(ctx, r)
|
||
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
|
||
}
|
||
|
||
// Ensure that metadata does not contain sensitive information
|
||
crypto.RemoveSensitiveEntries(metadata)
|
||
|
||
if objectAPI.IsCompressionSupported() && isCompressible(r.Header, object) {
|
||
// Storing the compression metadata.
|
||
metadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV1
|
||
}
|
||
|
||
newMultipartUpload := objectAPI.NewMultipartUpload
|
||
if api.CacheAPI() != nil && !hasServerSideEncryptionHeader(r.Header) {
|
||
newMultipartUpload = api.CacheAPI().NewMultipartUpload
|
||
}
|
||
uploadID, err := newMultipartUpload(ctx, bucket, object, metadata, opts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, 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, w, "CopyObjectPart")
|
||
|
||
defer logger.AuditLog(w, r, "CopyObjectPart")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrNotImplemented, r.URL) // SSE-KMS is not supported
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
dstBucket := vars["bucket"]
|
||
dstObject := vars["object"]
|
||
|
||
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
|
||
}
|
||
|
||
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, 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 srcOpts, dstOpts ObjectOptions
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, dstBucket, dstObject, dstOpts); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
getObjectNInfo := objectAPI.GetObjectNInfo
|
||
if api.CacheAPI() != nil {
|
||
getObjectNInfo = api.CacheAPI().GetObjectNInfo
|
||
}
|
||
|
||
// Get request range.
|
||
var rs *HTTPRangeSpec
|
||
rangeHeader := r.Header.Get("x-amz-copy-source-range")
|
||
if rangeHeader != "" {
|
||
var parseRangeErr error
|
||
if rs, parseRangeErr = parseCopyPartRangeSpec(rangeHeader); parseRangeErr != 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, parseRangeErr)
|
||
writeCopyPartErr(w, parseRangeErr, r.URL)
|
||
return
|
||
|
||
}
|
||
}
|
||
|
||
gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, readLock, srcOpts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
defer gr.Close()
|
||
srcInfo := gr.ObjInfo
|
||
|
||
actualPartSize := srcInfo.Size
|
||
if crypto.IsEncrypted(srcInfo.UserDefined) {
|
||
actualPartSize, err = srcInfo.DecryptedSize()
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Special care for CopyObjectPart
|
||
if partRangeErr := checkCopyPartRangeWithSize(rs, actualPartSize); partRangeErr != nil {
|
||
writeCopyPartErr(w, partRangeErr, r.URL)
|
||
return
|
||
}
|
||
|
||
// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
|
||
if checkCopyObjectPartPreconditions(w, r, srcInfo) {
|
||
return
|
||
}
|
||
|
||
// Get the object offset & length
|
||
startOffset, length, err := rs.GetOffsetLength(actualPartSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
/// maximum copy size for multipart objects in a single operation
|
||
if isMaxAllowedPartSize(length) {
|
||
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
||
return
|
||
}
|
||
|
||
actualPartSize = length
|
||
var reader io.Reader
|
||
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, dstBucket, dstObject, uploadID, 0, 1)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
// Read compression metadata preserved in the init multipart for the decision.
|
||
_, compressPart := li.UserDefined[ReservedMetadataPrefix+"compression"]
|
||
isCompressed := compressPart
|
||
// Compress only if the compression is enabled during initial multipart.
|
||
if isCompressed {
|
||
// Open a pipe for compression.
|
||
// Where pipeWriter is piped to srcInfo.Reader.
|
||
// gr writes to pipeWriter.
|
||
pipeReader, pipeWriter := io.Pipe()
|
||
reader = pipeReader
|
||
length = -1
|
||
|
||
snappyWriter := snappy.NewWriter(pipeWriter)
|
||
|
||
go func() {
|
||
// Compress the decompressed source object.
|
||
_, cerr := io.Copy(snappyWriter, gr)
|
||
snappyWriter.Close()
|
||
pipeWriter.CloseWithError(cerr)
|
||
}()
|
||
} else {
|
||
reader = gr
|
||
}
|
||
|
||
srcInfo.Reader, err = hash.NewReader(reader, length, "", "", actualPartSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
rawReader := srcInfo.Reader
|
||
pReader := NewPutObjReader(rawReader, nil, nil)
|
||
|
||
isEncrypted := false
|
||
var objectEncryptionKey []byte
|
||
if objectAPI.IsEncryptionSupported() && !isCompressed {
|
||
if crypto.IsEncrypted(li.UserDefined) {
|
||
if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(li.UserDefined) {
|
||
writeErrorResponse(w, ErrSSEMultipartEncrypted, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3.IsEncrypted(li.UserDefined) && crypto.SSEC.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrSSEMultipartEncrypted, r.URL)
|
||
return
|
||
}
|
||
isEncrypted = true // to detect SSE-S3 encryption
|
||
var key []byte
|
||
if crypto.SSEC.IsRequested(r.Header) {
|
||
key, err = ParseSSECustomerRequest(r)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
objectEncryptionKey, err = decryptObjectInfo(key, dstBucket, dstObject, li.UserDefined)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, 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(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
info := ObjectInfo{Size: length}
|
||
srcInfo.Reader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", length)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
pReader = NewPutObjReader(rawReader, srcInfo.Reader, objectEncryptionKey)
|
||
}
|
||
}
|
||
|
||
srcInfo.PutObjReader = pReader
|
||
// 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, srcOpts, dstOpts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
if isEncrypted {
|
||
partInfo.ETag = tryDecryptETag(objectEncryptionKey, partInfo.ETag, crypto.SSEC.IsRequested(r.Header))
|
||
}
|
||
|
||
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, w, "PutObjectPart")
|
||
|
||
defer logger.AuditLog(w, r, "PutObjectPart")
|
||
|
||
objectAPI := api.ObjectAPI()
|
||
if objectAPI == nil {
|
||
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
||
return
|
||
}
|
||
if crypto.S3KMS.IsRequested(r.Header) {
|
||
writeErrorResponse(w, ErrNotImplemented, r.URL) // SSE-KMS is not supported
|
||
return
|
||
}
|
||
|
||
vars := mux.Vars(r)
|
||
bucket := vars["bucket"]
|
||
object := vars["object"]
|
||
|
||
// 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(ctx, 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
|
||
s3Error APIErrorCode
|
||
)
|
||
reader = r.Body
|
||
if s3Error = isPutAllowed(rAuthType, bucket, object, r); s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
switch rAuthType {
|
||
case authTypeStreamingSigned:
|
||
// Initialize stream signature verifier.
|
||
reader, s3Error = newSignV4ChunkedReader(r)
|
||
if s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
case authTypeSignedV2, authTypePresignedV2:
|
||
if s3Error = isReqAuthenticatedV2(r); 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)
|
||
}
|
||
}
|
||
|
||
actualSize := size
|
||
var pipeReader *io.PipeReader
|
||
var pipeWriter *io.PipeWriter
|
||
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, bucket, object, uploadID, 0, 1)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
// Read compression metadata preserved in the init multipart for the decision.
|
||
_, compressPart := li.UserDefined[ReservedMetadataPrefix+"compression"]
|
||
|
||
isCompressed := false
|
||
if objectAPI.IsCompressionSupported() && compressPart {
|
||
pipeReader, pipeWriter = io.Pipe()
|
||
snappyWriter := snappy.NewWriter(pipeWriter)
|
||
|
||
var actualReader *hash.Reader
|
||
actualReader, err = hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
go func() {
|
||
// Writing to the compressed writer.
|
||
_, cerr := io.CopyN(snappyWriter, actualReader, actualSize)
|
||
snappyWriter.Close()
|
||
pipeWriter.CloseWithError(cerr)
|
||
}()
|
||
|
||
// Set compression metrics.
|
||
size = -1 // Since compressed size is un-predictable.
|
||
md5hex = "" // Do not try to verify the content.
|
||
sha256hex = ""
|
||
reader = pipeReader
|
||
isCompressed = true
|
||
}
|
||
|
||
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
rawReader := hashReader
|
||
pReader := NewPutObjReader(rawReader, nil, nil)
|
||
var opts ObjectOptions
|
||
|
||
// Deny if WORM is enabled
|
||
if globalWORMEnabled {
|
||
if _, err = objectAPI.GetObjectInfo(ctx, bucket, object, opts); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
isEncrypted := false
|
||
var objectEncryptionKey []byte
|
||
if objectAPI.IsEncryptionSupported() && !isCompressed {
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, bucket, object, uploadID, 0, 1)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
if crypto.IsEncrypted(li.UserDefined) {
|
||
if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(li.UserDefined) {
|
||
writeErrorResponse(w, ErrSSEMultipartEncrypted, r.URL)
|
||
return
|
||
}
|
||
isEncrypted = true // to detect SSE-S3 encryption
|
||
var key []byte
|
||
if crypto.SSEC.IsRequested(r.Header) {
|
||
key, err = ParseSSECustomerRequest(r)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Calculating object encryption key
|
||
objectEncryptionKey, err = decryptObjectInfo(key, bucket, object, li.UserDefined)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, 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(hashReader, sio.Config{Key: partEncryptionKey})
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
info := ObjectInfo{Size: size}
|
||
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", size) // do not try to verify encrypted content
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
pReader = NewPutObjReader(rawReader, hashReader, objectEncryptionKey)
|
||
}
|
||
}
|
||
|
||
putObjectPart := objectAPI.PutObjectPart
|
||
if api.CacheAPI() != nil && !isEncrypted {
|
||
putObjectPart = api.CacheAPI().PutObjectPart
|
||
}
|
||
partInfo, err := putObjectPart(ctx, bucket, object, uploadID, partID, pReader, opts)
|
||
if err != nil {
|
||
// Verify if the underlying error is signature mismatch.
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
if isCompressed {
|
||
pipeWriter.Close()
|
||
// Suppress compressed ETag.
|
||
partInfo.ETag = partInfo.ETag + "-1"
|
||
}
|
||
|
||
if partInfo.ETag != "" {
|
||
if isEncrypted {
|
||
w.Header().Set("ETag", "\""+tryDecryptETag(objectEncryptionKey, partInfo.ETag, crypto.SSEC.IsRequested(r.Header))+"\"")
|
||
} else {
|
||
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, w, "AbortMultipartUpload")
|
||
|
||
defer logger.AuditLog(w, 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, ObjectOptions{}); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
uploadID, _, _, _, s3Error := getObjectResources(r.URL.Query())
|
||
if s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
if err := abortMultipartUpload(ctx, bucket, object, uploadID); err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
writeSuccessNoContent(w)
|
||
}
|
||
|
||
// ListObjectPartsHandler - List object parts
|
||
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
||
ctx := newContext(r, w, "ListObjectParts")
|
||
|
||
defer logger.AuditLog(w, 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, _, s3Error := getObjectResources(r.URL.Query())
|
||
if s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
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(ctx, err), r.URL)
|
||
return
|
||
}
|
||
|
||
var ssec bool
|
||
if objectAPI.IsEncryptionSupported() {
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, bucket, object, uploadID, 0, 1)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
if crypto.IsEncrypted(li.UserDefined) {
|
||
var key []byte
|
||
if crypto.SSEC.IsEncrypted(li.UserDefined) {
|
||
ssec = true
|
||
}
|
||
var objectEncryptionKey []byte
|
||
if crypto.S3.IsEncrypted(li.UserDefined) {
|
||
// Calculating object encryption key
|
||
objectEncryptionKey, err = decryptObjectInfo(key, bucket, object, li.UserDefined)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
parts := make([]PartInfo, len(listPartsInfo.Parts))
|
||
for i, p := range listPartsInfo.Parts {
|
||
part := p
|
||
part.ETag = tryDecryptETag(objectEncryptionKey, p.ETag, ssec)
|
||
parts[i] = part
|
||
}
|
||
listPartsInfo.Parts = parts
|
||
}
|
||
}
|
||
|
||
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, w, "CompleteMultipartUpload")
|
||
|
||
defer logger.AuditLog(w, 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, ObjectOptions{}); err == nil {
|
||
writeErrorResponse(w, ErrMethodNotAllowed, r.URL)
|
||
return
|
||
}
|
||
}
|
||
|
||
// Get upload id.
|
||
uploadID, _, _, _, s3Error := getObjectResources(r.URL.Query())
|
||
if s3Error != ErrNone {
|
||
writeErrorResponse(w, s3Error, r.URL)
|
||
return
|
||
}
|
||
|
||
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
|
||
}
|
||
var objectEncryptionKey []byte
|
||
var opts ObjectOptions
|
||
var isEncrypted, ssec bool
|
||
|
||
if objectAPI.IsEncryptionSupported() {
|
||
var li ListPartsInfo
|
||
li, err = objectAPI.ListObjectParts(ctx, bucket, object, uploadID, 0, 1)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
if crypto.IsEncrypted(li.UserDefined) {
|
||
isEncrypted = true
|
||
ssec = crypto.SSEC.IsEncrypted(li.UserDefined)
|
||
var key []byte
|
||
if crypto.S3.IsEncrypted(li.UserDefined) {
|
||
// Calculating object encryption key
|
||
objectEncryptionKey, err = decryptObjectInfo(key, bucket, object, li.UserDefined)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
partsMap := make(map[string]PartInfo)
|
||
var listPartsInfo ListPartsInfo
|
||
|
||
if isEncrypted {
|
||
var partNumberMarker int
|
||
maxParts := 1000
|
||
for {
|
||
listPartsInfo, err = objectAPI.ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts)
|
||
if err != nil {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
return
|
||
}
|
||
for _, part := range listPartsInfo.Parts {
|
||
partsMap[strconv.Itoa(part.PartNumber)] = part
|
||
}
|
||
partNumberMarker = listPartsInfo.NextPartNumberMarker
|
||
if !listPartsInfo.IsTruncated {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
// Complete parts.
|
||
var completeParts []CompletePart
|
||
for _, part := range complMultipartUpload.Parts {
|
||
// Avoiding for gateway parts.
|
||
// `strings.TrimPrefix` does not work here as intended. So `Replace` is used instead.
|
||
if objectAPI.IsCompressionSupported() {
|
||
part.ETag = strings.Replace(part.ETag, "-1", "", -1) // For compressed multiparts, We append '-1' for part.ETag.
|
||
}
|
||
part.ETag = canonicalizeETag(part.ETag)
|
||
if isEncrypted {
|
||
// ETag is stored in the backend in encrypted form. Validate client sent ETag with
|
||
// decrypted ETag.
|
||
if bkPartInfo, ok := partsMap[strconv.Itoa(part.PartNumber)]; ok {
|
||
bkETag := tryDecryptETag(objectEncryptionKey, bkPartInfo.ETag, ssec)
|
||
if bkETag != part.ETag {
|
||
writeErrorResponse(w, ErrInvalidPart, r.URL)
|
||
return
|
||
}
|
||
part.ETag = bkPartInfo.ETag
|
||
}
|
||
}
|
||
completeParts = append(completeParts, part)
|
||
}
|
||
|
||
completeMultiPartUpload := objectAPI.CompleteMultipartUpload
|
||
if api.CacheAPI() != nil {
|
||
completeMultiPartUpload = api.CacheAPI().CompleteMultipartUpload
|
||
}
|
||
objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, completeParts, opts)
|
||
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(ctx, 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(handlers.GetSourceIP(r))
|
||
if err != nil {
|
||
host, port = "", ""
|
||
}
|
||
|
||
// Notify object created event.
|
||
sendEvent(eventArgs{
|
||
EventName: event.ObjectCreatedCompleteMultipartUpload,
|
||
BucketName: bucket,
|
||
Object: objInfo,
|
||
ReqParams: extractReqParams(r),
|
||
RespElements: extractRespElements(w),
|
||
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, w, "DeleteObject")
|
||
|
||
defer logger.AuditLog(w, 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
|
||
}
|
||
|
||
if globalDNSConfig != nil {
|
||
_, err := globalDNSConfig.Get(bucket)
|
||
if err != nil {
|
||
if err == dns.ErrNoEntriesFound {
|
||
writeErrorResponse(w, ErrNoSuchBucket, r.URL)
|
||
} else {
|
||
writeErrorResponse(w, toAPIErrorCode(ctx, err), r.URL)
|
||
}
|
||
return
|
||
}
|
||
}
|
||
|
||
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
|
||
if err := deleteObject(ctx, objectAPI, api.CacheAPI(), bucket, object, r); err != nil {
|
||
switch toAPIErrorCode(ctx, err) {
|
||
case ErrNoSuchBucket:
|
||
// When bucket doesn't exist specially handle it.
|
||
writeErrorResponse(w, ErrNoSuchBucket, r.URL)
|
||
return
|
||
}
|
||
// Ignore delete object errors while replying to client, since we are suppposed to reply only 204.
|
||
}
|
||
writeSuccessNoContent(w)
|
||
}
|