/*
* MinIO Cloud Storage, (C) 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bufio"
"context"
"encoding/hex"
"encoding/xml"
"io"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"sync"
"time"
"github.com/google/uuid"
"github.com/gorilla/mux"
miniogo "github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/tags"
"github.com/minio/minio/cmd/config/etcd/dns"
"github.com/minio/minio/cmd/config/storageclass"
"github.com/minio/minio/cmd/crypto"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
objectlock "github.com/minio/minio/pkg/bucket/object/lock"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/bucket/replication"
"github.com/minio/minio/pkg/event"
"github.com/minio/minio/pkg/handlers"
"github.com/minio/minio/pkg/hash"
iampolicy "github.com/minio/minio/pkg/iam/policy"
"github.com/minio/minio/pkg/ioutil"
"github.com/minio/minio/pkg/s3select"
"github.com/minio/sio"
)
// supportedHeadGetReqParams - supported request parameters for GET and HEAD presigned request.
var supportedHeadGetReqParams = map[string]string{
"response-expires": xhttp.Expires,
"response-content-type": xhttp.ContentType,
"response-cache-control": xhttp.CacheControl,
"response-content-encoding": xhttp.ContentEncoding,
"response-content-language": xhttp.ContentLanguage,
"response-content-disposition": xhttp.ContentDisposition,
}
const (
compressionAlgorithmV1 = "golang/snappy/LZ77"
compressionAlgorithmV2 = "klauspost/compress/s2"
// When an upload exceeds encryptBufferThreshold ...
encryptBufferThreshold = 1 << 20
// add an input buffer of this size.
encryptBufferSize = 1 << 20
)
// setHeadGetRespHeaders - set any requested parameters as response headers.
func setHeadGetRespHeaders(w http.ResponseWriter, reqParams url.Values) {
for k, v := range reqParams {
if header, ok := supportedHeadGetReqParams[strings.ToLower(k)]; ok {
w.Header()[header] = v
}
}
}
// SelectObjectContentHandler - GET Object?select
// ----------
// This implementation of the GET operation retrieves object content based
// on an SQL expression. In the request, along with the sql expression, you must
// also specify a data serialization format (JSON, CSV) of the object.
func (api objectAPIHandlers) SelectObjectContentHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "SelectObject")
defer logger.AuditLog(w, r, "SelectObject", mustGetClaimsFromToken(r))
// Fetch object stat info.
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// get gateway encryption options
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
// 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, "", "", nil),
IsOwner: false,
}) {
_, err = getObjectInfo(ctx, bucket, object, opts)
if toAPIError(ctx, err).Code == "NoSuchKey" {
s3Error = ErrNoSuchKey
}
}
}
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Get request range.
rangeHeader := r.Header.Get(xhttp.Range)
if rangeHeader != "" {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrUnsupportedRangeHeader), r.URL, guessIsBrowserReq(r))
return
}
if r.ContentLength <= 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEmptyRequestBody), r.URL, guessIsBrowserReq(r))
return
}
getObjectNInfo := objectAPI.GetObjectNInfo
if api.CacheAPI() != nil {
getObjectNInfo = api.CacheAPI().GetObjectNInfo
}
getObject := func(offset, length int64) (rc io.ReadCloser, err error) {
isSuffixLength := false
if offset < 0 {
isSuffixLength = true
}
rs := &HTTPRangeSpec{
IsSuffixLength: isSuffixLength,
Start: offset,
End: offset + length,
}
return getObjectNInfo(ctx, bucket, object, rs, r.Header, readLock, ObjectOptions{})
}
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
if err != nil {
if globalBucketVersioningSys.Enabled(bucket) {
// Versioning enabled quite possibly object is deleted might be delete-marker
// if present set the headers, no idea why AWS S3 sets these headers.
if objInfo.VersionID != "" && objInfo.DeleteMarker {
w.Header()[xhttp.AmzVersionID] = []string{objInfo.VersionID}
w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(objInfo.DeleteMarker)}
}
}
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// filter object lock metadata if permission does not permit
getRetPerms := checkRequestAuthType(ctx, r, policy.GetObjectRetentionAction, bucket, object)
legalHoldPerms := checkRequestAuthType(ctx, r, policy.GetObjectLegalHoldAction, bucket, object)
// filter object lock metadata if permission does not permit
objInfo.UserDefined = objectlock.FilterObjectLockMetadata(objInfo.UserDefined, getRetPerms != ErrNone, legalHoldPerms != ErrNone)
if objectAPI.IsEncryptionSupported() {
if _, err = DecryptObjectInfo(&objInfo, r); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
s3Select, err := s3select.NewS3Select(r.Body)
if err != nil {
if serr, ok := err.(s3select.SelectError); ok {
encodedErrorResponse := encodeResponse(APIErrorResponse{
Code: serr.ErrorCode(),
Message: serr.ErrorMessage(),
BucketName: bucket,
Key: object,
Resource: r.URL.Path,
RequestID: w.Header().Get(xhttp.AmzRequestID),
HostID: globalDeploymentID,
})
writeResponse(w, serr.HTTPStatusCode(), encodedErrorResponse, mimeXML)
} else {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
}
return
}
if err = s3Select.Open(getObject); err != nil {
if serr, ok := err.(s3select.SelectError); ok {
encodedErrorResponse := encodeResponse(APIErrorResponse{
Code: serr.ErrorCode(),
Message: serr.ErrorMessage(),
BucketName: bucket,
Key: object,
Resource: r.URL.Path,
RequestID: w.Header().Get(xhttp.AmzRequestID),
HostID: globalDeploymentID,
})
writeResponse(w, serr.HTTPStatusCode(), encodedErrorResponse, mimeXML)
} else {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
}
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 {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
}
}
}
s3Select.Evaluate(w)
s3Select.Close()
// 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: handlers.GetSourceIP(r),
})
}
// 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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL, guessIsBrowserReq(r))
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// get gateway encryption options
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// 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, "", "", nil),
IsOwner: false,
}) {
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
_, err = getObjectInfo(ctx, bucket, object, opts)
if toAPIError(ctx, err).Code == "NoSuchKey" {
s3Error = ErrNoSuchKey
}
}
}
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
getObjectNInfo := objectAPI.GetObjectNInfo
if api.CacheAPI() != nil {
getObjectNInfo = api.CacheAPI().GetObjectNInfo
}
// Get request range.
var rs *HTTPRangeSpec
var rangeErr error
rangeHeader := r.Header.Get(xhttp.Range)
if rangeHeader != "" {
rs, rangeErr = parseRequestRangeSpec(rangeHeader)
}
// Validate pre-conditions if any.
opts.CheckPrecondFn = func(oi ObjectInfo) bool {
if objectAPI.IsEncryptionSupported() {
if _, err := DecryptObjectInfo(&oi, r); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return true
}
}
if checkPreconditions(ctx, w, r, oi, opts) {
return true
}
// Handle only errInvalidRange. Ignore other
// parse error and treat it as regular Get
// request like Amazon S3.
if rangeErr == errInvalidRange {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRange), r.URL, guessIsBrowserReq(r))
return true
}
if rangeErr != nil {
logger.LogIf(ctx, rangeErr, logger.Application)
}
return false
}
gr, err := getObjectNInfo(ctx, bucket, object, rs, r.Header, readLock, opts)
if err != nil {
if isErrPreconditionFailed(err) {
return
}
if globalBucketVersioningSys.Enabled(bucket) && gr != nil {
// Versioning enabled quite possibly object is deleted might be delete-marker
// if present set the headers, no idea why AWS S3 sets these headers.
if gr.ObjInfo.VersionID != "" && gr.ObjInfo.DeleteMarker {
w.Header()[xhttp.AmzVersionID] = []string{gr.ObjInfo.VersionID}
w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(gr.ObjInfo.DeleteMarker)}
}
}
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
defer gr.Close()
objInfo := gr.ObjInfo
// filter object lock metadata if permission does not permit
getRetPerms := checkRequestAuthType(ctx, r, policy.GetObjectRetentionAction, bucket, object)
legalHoldPerms := checkRequestAuthType(ctx, r, policy.GetObjectLegalHoldAction, bucket, object)
// filter object lock metadata if permission does not permit
objInfo.UserDefined = objectlock.FilterObjectLockMetadata(objInfo.UserDefined, getRetPerms != ErrNone, legalHoldPerms != ErrNone)
// 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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Set Parts Count Header
if opts.PartNumber > 0 && len(objInfo.Parts) > 0 {
setPartsCountHeaders(w, objInfo)
}
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
}
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
// 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: handlers.GetSourceIP(r),
})
}
// 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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponseHeadersOnly(w, errorCodes.ToAPIErr(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
writeErrorResponseHeadersOnly(w, errorCodes.ToAPIErr(ErrBadRequest))
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
return
}
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, "", "", nil),
IsOwner: false,
}) {
_, err = getObjectInfo(ctx, bucket, object, opts)
if toAPIError(ctx, err).Code == "NoSuchKey" {
s3Error = ErrNoSuchKey
}
}
}
writeErrorResponseHeadersOnly(w, errorCodes.ToAPIErr(s3Error))
return
}
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
if err != nil {
if globalBucketVersioningSys.Enabled(bucket) {
// Versioning enabled quite possibly object is deleted might be delete-marker
// if present set the headers, no idea why AWS S3 sets these headers.
if objInfo.VersionID != "" && objInfo.DeleteMarker {
w.Header()[xhttp.AmzVersionID] = []string{objInfo.VersionID}
w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(objInfo.DeleteMarker)}
}
}
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
return
}
// filter object lock metadata if permission does not permit
getRetPerms := checkRequestAuthType(ctx, r, policy.GetObjectRetentionAction, bucket, object)
legalHoldPerms := checkRequestAuthType(ctx, r, policy.GetObjectLegalHoldAction, bucket, object)
// filter object lock metadata if permission does not permit
objInfo.UserDefined = objectlock.FilterObjectLockMetadata(objInfo.UserDefined, getRetPerms != ErrNone, legalHoldPerms != ErrNone)
if objectAPI.IsEncryptionSupported() {
if _, err = DecryptObjectInfo(&objInfo, r); err != nil {
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
return
}
}
// Validate pre-conditions if any.
if checkPreconditions(ctx, w, r, objInfo, opts) {
return
}
// Get request range.
var rs *HTTPRangeSpec
rangeHeader := r.Header.Get(xhttp.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, errorCodes.ToAPIErr(ErrInvalidRange))
return
}
logger.LogIf(ctx, err)
}
}
// 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, toAPIError(ctx, err))
return
}
w.Header().Set(crypto.SSECAlgorithm, r.Header.Get(crypto.SSECAlgorithm))
w.Header().Set(crypto.SSECKeyMD5, r.Header.Get(crypto.SSECKeyMD5))
}
}
}
// Set standard object headers.
if err = setObjectHeaders(w, objInfo, rs); err != nil {
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
return
}
// Set Parts Count Header
if opts.PartNumber > 0 && len(objInfo.Parts) > 0 {
setPartsCountHeaders(w, objInfo)
}
// 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)
}
// 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: handlers.GetSourceIP(r),
})
}
// 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
}
// remove SSE Headers from source info
crypto.RemoveSSEHeaders(defaultMeta)
// Storage class is special, it can be replaced regardless of the
// metadata directive, if set should be preserved and replaced
// to the destination metadata.
sc := r.Header.Get(xhttp.AmzStorageClass)
if sc == "" {
sc = r.URL.Query().Get(xhttp.AmzStorageClass)
}
// if x-amz-metadata-directive says REPLACE then
// we extract metadata from the input headers.
if isDirectiveReplace(r.Header.Get(xhttp.AmzMetadataDirective)) {
emetadata, err := extractMetadata(ctx, r)
if err != nil {
return nil, err
}
if sc != "" {
emetadata[xhttp.AmzStorageClass] = sc
}
return emetadata, nil
}
if sc != "" {
defaultMeta[xhttp.AmzStorageClass] = sc
}
// if x-amz-metadata-directive says COPY then we
// return the default metadata.
if isDirectiveCopy(r.Header.Get(xhttp.AmzMetadataDirective)) {
return defaultMeta, nil
}
// Copy is default behavior if not x-amz-metadata-directive is set.
return defaultMeta, nil
}
// getRemoteInstanceTransport contains a singleton roundtripper.
var getRemoteInstanceTransport *http.Transport
var getRemoteInstanceTransportLongTO *http.Transport
var getRemoteInstanceTransportOnce sync.Once
// Returns a minio-go Client configured to access remote host described by destDNSRecord
// Applicable only in a federated deployment
var getRemoteInstanceClient = func(r *http.Request, host string) (*miniogo.Core, error) {
getRemoteInstanceTransportOnce.Do(func() {
getRemoteInstanceTransport = NewGatewayHTTPTransport()
getRemoteInstanceTransportLongTO = newGatewayHTTPTransport(time.Hour)
})
cred := getReqAccessCred(r, globalServerRegion)
// In a federated deployment, all the instances share config files
// and hence expected to have same credentials.
core, err := miniogo.NewCore(host, &miniogo.Options{
Creds: credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, ""),
Secure: globalIsSSL,
Transport: getRemoteInstanceTransport,
})
if err != nil {
return nil, err
}
return core, nil
}
// Returns a minio-go Client configured to access remote host described by destDNSRecord
// Applicable only in a federated deployment.
// The transport does not contain any timeout except for dialing.
func getRemoteInstanceClientLongTimeout(r *http.Request, host string) (*miniogo.Core, error) {
getRemoteInstanceTransportOnce.Do(func() {
getRemoteInstanceTransport = NewGatewayHTTPTransport()
getRemoteInstanceTransportLongTO = newGatewayHTTPTransport(time.Hour)
})
cred := getReqAccessCred(r, globalServerRegion)
// In a federated deployment, all the instances share config files
// and hence expected to have same credentials.
core, err := miniogo.NewCore(host, &miniogo.Options{
Creds: credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, ""),
Secure: globalIsSSL,
Transport: getRemoteInstanceTransportLongTO,
})
if err != nil {
return nil, err
}
return core, nil
}
// Check if the destination bucket is on a remote site, this code only gets executed
// when federation is enabled, ie when globalDNSConfig is non 'nil'.
//
// This function is similar to isRemoteCallRequired but specifically for COPY object API
// if destination and source are same we do not need to check for destnation bucket
// to exist locally.
func isRemoteCopyRequired(ctx context.Context, srcBucket, dstBucket string, objAPI ObjectLayer) bool {
if srcBucket == dstBucket {
return false
}
return isRemoteCallRequired(ctx, dstBucket, objAPI)
}
// Check if the bucket is on a remote site, this code only gets executed when federation is enabled.
func isRemoteCallRequired(ctx context.Context, bucket string, objAPI ObjectLayer) bool {
if globalDNSConfig == nil {
return false
}
if globalBucketFederation {
_, err := objAPI.GetBucketInfo(ctx, bucket)
return err == toObjectErr(errVolumeNotFound, bucket)
}
return false
}
// 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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r)) // SSE-KMS is not supported
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
dstBucket := vars["bucket"]
dstObject, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, dstBucket, dstObject); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Read escaped copy source path to check for parameters.
cpSrcPath := r.Header.Get(xhttp.AmzCopySource)
var vid string
if u, err := url.Parse(cpSrcPath); err == nil {
vid = strings.TrimSpace(u.Query().Get(xhttp.VersionID))
// Note that url.Parse does the unescaping
cpSrcPath = u.Path
}
srcBucket, srcObject := path2BucketObject(cpSrcPath)
// If source object is empty or bucket is empty, reply back invalid copy source.
if srcObject == "" || srcBucket == "" {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL, guessIsBrowserReq(r))
return
}
if vid != "" && vid != nullVersionID {
_, err := uuid.Parse(vid)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, VersionNotFound{
Bucket: srcBucket,
Object: srcObject,
VersionID: vid,
}), r.URL, guessIsBrowserReq(r))
return
}
}
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Check if metadata directive is valid.
if !isDirectiveValid(r.Header.Get(xhttp.AmzMetadataDirective)) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMetadataDirective), r.URL, guessIsBrowserReq(r))
return
}
// check if tag directive is valid
if !isDirectiveValid(r.Header.Get(xhttp.AmzTagDirective)) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidTagDirective), r.URL, guessIsBrowserReq(r))
return
}
// Validate storage class metadata if present
dstSc := r.Header.Get(xhttp.AmzStorageClass)
if dstSc != "" && !storageclass.IsValid(dstSc) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL, guessIsBrowserReq(r))
return
}
// Check if bucket encryption is enabled
_, err = globalBucketSSEConfigSys.Get(dstBucket)
// This request header needs to be set prior to setting ObjectOptions
if (globalAutoEncryption || err == nil) && !crypto.SSEC.IsRequested(r.Header) {
r.Header.Add(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
}
var srcOpts, dstOpts ObjectOptions
srcOpts, err = copySrcOpts(ctx, r, srcBucket, srcObject)
if err != nil {
logger.LogIf(ctx, err)
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
srcOpts.VersionID = vid
// convert copy src encryption options for GET calls
var getOpts = ObjectOptions{VersionID: srcOpts.VersionID, Versioned: srcOpts.Versioned}
getSSE := encrypt.SSE(srcOpts.ServerSideEncryption)
if getSSE != srcOpts.ServerSideEncryption {
getOpts.ServerSideEncryption = getSSE
}
dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, nil)
if err != nil {
logger.LogIf(ctx, err)
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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
}
checkCopyPrecondFn := func(o ObjectInfo) bool {
if objectAPI.IsEncryptionSupported() {
if _, err := DecryptObjectInfo(&o, r); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return true
}
}
return checkCopyObjectPreconditions(ctx, w, r, o)
}
getOpts.CheckPrecondFn = checkCopyPrecondFn
var rs *HTTPRangeSpec
gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, lock, getOpts)
if err != nil {
if isErrPreconditionFailed(err) {
return
}
if globalBucketVersioningSys.Enabled(srcBucket) && gr != nil {
// Versioning enabled quite possibly object is deleted might be delete-marker
// if present set the headers, no idea why AWS S3 sets these headers.
if gr.ObjInfo.VersionID != "" && gr.ObjInfo.DeleteMarker {
w.Header()[xhttp.AmzVersionID] = []string{gr.ObjInfo.VersionID}
w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(gr.ObjInfo.DeleteMarker)}
}
}
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
defer gr.Close()
srcInfo := gr.ObjInfo
// maximum Upload size for object in a single CopyObject operation.
if isMaxObjectSize(srcInfo.Size) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL, guessIsBrowserReq(r))
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
}
var chStorageClass bool
if dstSc != "" {
chStorageClass = true
srcInfo.metadataOnly = false
}
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
length = actualSize
}
if !cpSrcDstSame {
if err := enforceBucketQuota(ctx, dstBucket, actualSize); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
var compressMetadata map[string]string
// No need to compress for remote etcd calls
// Pass the decompressed stream to such calls.
isCompressed := objectAPI.IsCompressionSupported() && isCompressible(r.Header, srcObject) && !isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI)
if isCompressed {
compressMetadata = make(map[string]string, 2)
// Preserving the compression metadata.
compressMetadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV2
compressMetadata[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(actualSize, 10)
// Remove all source encrypted related metadata to
// avoid copying them in target object.
crypto.RemoveInternalEntries(srcInfo.UserDefined)
s2c := newS2CompressReader(gr)
defer s2c.Close()
reader = s2c
length = -1
} 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, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
rawReader := srcInfo.Reader
pReader := NewPutObjReader(srcInfo.Reader, nil, 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(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL, guessIsBrowserReq(r))
return
}
// Encryption parameters not present for this object.
if crypto.SSEC.IsEncrypted(srcInfo.UserDefined) && !crypto.SSECopy.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidSSECustomerAlgorithm), r.URL, guessIsBrowserReq(r))
return
}
var oldKey, newKey []byte
var objEncKey crypto.ObjectKey
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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
// - the object storage class is not changing
// then execute a key rotation.
if cpSrcDstSame && (sseCopyC && sseC) && !chStorageClass {
oldKey, err = ParseSSECopyCustomerRequest(r.Header, srcInfo.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
for k, v := range srcInfo.UserDefined {
if strings.HasPrefix(strings.ToLower(k), ReservedMetadataPrefixLower) {
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Since we are rotating the keys, make sure to update the metadata.
srcInfo.metadataOnly = true
srcInfo.keyRotation = 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.
if !srcInfo.keyRotation {
srcInfo.metadataOnly = false
}
}
// Calculate the size of the target object
var targetSize int64
switch {
case !isSourceEncrypted && !isTargetEncrypted:
targetSize = srcInfo.Size
case isSourceEncrypted && isTargetEncrypted:
objInfo := ObjectInfo{Size: actualSize}
targetSize = objInfo.EncryptedSize()
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
if isSourceEncrypted {
// Remove all source encrypted related metadata to
// avoid copying them in target object.
crypto.RemoveInternalEntries(srcInfo.UserDefined)
}
// do not try to verify encrypted content
srcInfo.Reader, err = hash.NewReader(reader, targetSize, "", "", targetSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if isTargetEncrypted {
pReader = NewPutObjReader(rawReader, srcInfo.Reader, &objEncKey)
}
}
}
srcInfo.PutObjReader = pReader
srcInfo.UserDefined, err = getCpObjMetadataFromHeader(ctx, r, srcInfo.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objTags := srcInfo.UserTags
// If x-amz-tagging-directive header is REPLACE, get passed tags.
if isDirectiveReplace(r.Header.Get(xhttp.AmzTagDirective)) {
objTags = r.Header.Get(xhttp.AmzObjectTagging)
if _, err := tags.ParseObjectTags(objTags); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if globalIsGateway {
srcInfo.UserDefined[xhttp.AmzTagDirective] = replaceDirective
}
}
if objTags != "" {
srcInfo.UserDefined[xhttp.AmzObjectTagging] = objTags
}
srcInfo.UserDefined = filterReplicationStatusMetadata(srcInfo.UserDefined)
srcInfo.UserDefined = objectlock.FilterObjectLockMetadata(srcInfo.UserDefined, true, true)
retPerms := isPutActionAllowed(getRequestAuthType(r), dstBucket, dstObject, r, iampolicy.PutObjectRetentionAction)
holdPerms := isPutActionAllowed(getRequestAuthType(r), dstBucket, dstObject, r, iampolicy.PutObjectLegalHoldAction)
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
// apply default bucket configuration/governance headers for dest side.
retentionMode, retentionDate, legalHold, s3Err := checkPutObjectLockAllowed(ctx, r, dstBucket, dstObject, getObjectInfo, retPerms, holdPerms)
if s3Err == ErrNone && retentionMode.Valid() {
srcInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockMode)] = string(retentionMode)
srcInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = retentionDate.UTC().Format(iso8601TimeFormat)
}
if s3Err == ErrNone && legalHold.Status.Valid() {
srcInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockLegalHold)] = string(legalHold.Status)
}
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if mustReplicate(ctx, r, dstBucket, dstObject, srcInfo.UserDefined, srcInfo.ReplicationStatus.String()) {
srcInfo.UserDefined[xhttp.AmzBucketReplicationStatus] = replication.Pending.String()
}
// Store the preserved compression metadata.
for k, v := range compressMetadata {
srcInfo.UserDefined[k] = v
}
// 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 or x-amz-tagging-directive was not set to REPLACE and source,
// destination 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 !isDirectiveReplace(r.Header.Get(xhttp.AmzMetadataDirective)) && !isDirectiveReplace(r.Header.Get(xhttp.AmzTagDirective)) &&
srcInfo.metadataOnly && !crypto.IsEncrypted(srcInfo.UserDefined) && srcOpts.VersionID == "" {
// If x-amz-metadata-directive is not set to REPLACE then we need
// to error out if source and destination are same.
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyDest), r.URL, guessIsBrowserReq(r))
return
}
var objInfo ObjectInfo
if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {
var dstRecords []dns.SrvRecord
dstRecords, err = globalDNSConfig.Get(dstBucket)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Send PutObject request to appropriate instance (in federated deployment)
core, rerr := getRemoteInstanceClientLongTimeout(r, getHostFromSrv(dstRecords))
if rerr != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL, guessIsBrowserReq(r))
return
}
tag, err := tags.ParseObjectTags(objTags)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
opts := miniogo.PutObjectOptions{
UserMetadata: srcInfo.UserDefined,
ServerSideEncryption: dstOpts.ServerSideEncryption,
UserTags: tag.ToMap(),
}
remoteObjInfo, rerr := core.PutObject(ctx, dstBucket, dstObject, srcInfo.Reader,
srcInfo.Size, "", "", opts)
if rerr != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL, guessIsBrowserReq(r))
return
}
objInfo.ETag = remoteObjInfo.ETag
objInfo.ModTime = remoteObjInfo.LastModified
} else {
copyObjectFn := objectAPI.CopyObject
if api.CacheAPI() != nil {
copyObjectFn = api.CacheAPI().CopyObject
}
// Copy source object to destination, if source and destination
// object is same then only metadata is updated.
objInfo, err = copyObjectFn(ctx, srcBucket, srcObject, dstBucket, dstObject, srcInfo, srcOpts, dstOpts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
objInfo.ETag = getDecryptedETag(r.Header, objInfo, false)
response := generateCopyObjectResponse(objInfo.ETag, objInfo.ModTime)
encodedSuccessResponse := encodeResponse(response)
if mustReplicate(ctx, r, dstBucket, dstObject, objInfo.UserDefined, objInfo.ReplicationStatus.String()) {
defer replicateObject(GlobalContext, dstBucket, dstObject, objInfo.VersionID, objectAPI, &eventArgs{
EventName: event.ObjectCreatedCopy,
BucketName: dstBucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
}, false)
}
setPutObjHeaders(w, objInfo, false)
// We must not use the http.Header().Set method here because some (broken)
// clients expect the x-amz-copy-source-version-id header key to be literally
// "x-amz-copy-source-version-id"- not in canonicalized form, preserve it.
if srcOpts.VersionID != "" {
w.Header()[strings.ToLower(xhttp.AmzCopySourceVersionID)] = []string{srcOpts.VersionID}
}
// Write success response.
writeSuccessResponseXML(w, encodedSuccessResponse)
// Notify object created event.
sendEvent(eventArgs{
EventName: event.ObjectCreatedCopy,
BucketName: dstBucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
// 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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) && !api.AllowSSEKMS() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r)) // SSE-KMS is not supported
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// To detect if the client has disconnected.
r.Body = &contextReader{r.Body, r.Context()}
// X-Amz-Copy-Source shouldn't be set for this call.
if _, ok := r.Header[xhttp.AmzCopySource]; ok {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL, guessIsBrowserReq(r))
return
}
// Validate storage class metadata if present
if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" {
if !storageclass.IsValid(sc) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL, guessIsBrowserReq(r))
return
}
}
// Get Content-Md5 sent by client and verify if valid
md5Bytes, err := checkValidMD5(r.Header)
if err != nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidDigest), r.URL, guessIsBrowserReq(r))
return
}
/// if Content-Length is unknown/missing, deny the request
size := r.ContentLength
rAuthType := getRequestAuthType(r)
if rAuthType == authTypeStreamingSigned {
if sizeStr, ok := r.Header[xhttp.AmzDecodedContentLength]; ok {
if sizeStr[0] == "" {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
size, err = strconv.ParseInt(sizeStr[0], 10, 64)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
}
if size == -1 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
/// maximum Upload size for objects in a single operation
if isMaxObjectSize(size) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL, guessIsBrowserReq(r))
return
}
metadata, err := extractMetadata(ctx, r)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if objTags := r.Header.Get(xhttp.AmzObjectTagging); objTags != "" {
if !objectAPI.IsTaggingSupported() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
if _, err := tags.ParseObjectTags(objTags); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
metadata[xhttp.AmzObjectTagging] = objTags
}
var (
md5hex = hex.EncodeToString(md5Bytes)
sha256hex = ""
reader io.Reader
s3Err APIErrorCode
putObject = objectAPI.PutObject
)
reader = r.Body
// Check if put is allowed
if s3Err = isPutActionAllowed(rAuthType, bucket, object, r, iampolicy.PutObjectAction); s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
switch rAuthType {
case authTypeStreamingSigned:
// Initialize stream signature verifier.
reader, s3Err = newSignV4ChunkedReader(r)
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
case authTypeSignedV2, authTypePresignedV2:
s3Err = isReqAuthenticatedV2(r)
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
case authTypePresigned, authTypeSigned:
if s3Err = reqSignatureV4Verify(r, globalServerRegion, serviceS3); s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if !skipContentSha256Cksum(r) {
sha256hex = getContentSha256Cksum(r, serviceS3)
}
}
if err := enforceBucketQuota(ctx, bucket, size); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Check if bucket encryption is enabled
_, err = globalBucketSSEConfigSys.Get(bucket)
// This request header needs to be set prior to setting ObjectOptions
if (globalAutoEncryption || err == nil) && !crypto.SSEC.IsRequested(r.Header) && !crypto.S3KMS.IsRequested(r.Header) {
r.Header.Add(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
}
actualSize := size
if objectAPI.IsCompressionSupported() && isCompressible(r.Header, object) && size > 0 {
// Storing the compression metadata.
metadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV2
metadata[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(size, 10)
actualReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Set compression metrics.
s2c := newS2CompressReader(actualReader)
defer s2c.Close()
reader = s2c
size = -1 // Since compressed size is un-predictable.
md5hex = "" // Do not try to verify the content.
sha256hex = ""
}
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
rawReader := hashReader
pReader := NewPutObjReader(rawReader, nil, nil)
// get gateway encryption options
var opts ObjectOptions
opts, err = putOpts(ctx, r, bucket, object, metadata)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if api.CacheAPI() != nil {
putObject = api.CacheAPI().PutObject
}
retPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectRetentionAction)
holdPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectLegalHoldAction)
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
retentionMode, retentionDate, legalHold, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, getObjectInfo, retPerms, holdPerms)
if s3Err == ErrNone && retentionMode.Valid() {
metadata[strings.ToLower(xhttp.AmzObjectLockMode)] = string(retentionMode)
metadata[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = retentionDate.UTC().Format(iso8601TimeFormat)
}
if s3Err == ErrNone && legalHold.Status.Valid() {
metadata[strings.ToLower(xhttp.AmzObjectLockLegalHold)] = string(legalHold.Status)
}
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if mustReplicate(ctx, r, bucket, object, metadata, "") {
metadata[xhttp.AmzBucketReplicationStatus] = string(replication.Pending)
}
if r.Header.Get(xhttp.AmzBucketReplicationStatus) == replication.Replica.String() {
if s3Err = isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.ReplicateObjectAction); s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
}
var objectEncryptionKey crypto.ObjectKey
if objectAPI.IsEncryptionSupported() {
if crypto.IsRequested(r.Header) && !HasSuffix(object, SlashSeparator) { // handle SSE requests
if crypto.SSECopy.IsRequested(r.Header) {
writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL, guessIsBrowserReq(r))
return
}
reader, objectEncryptionKey, err = EncryptRequest(hashReader, r, bucket, object, metadata)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
info := ObjectInfo{Size: size}
// do not try to verify encrypted content
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", size, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
pReader = NewPutObjReader(rawReader, hashReader, &objectEncryptionKey)
}
}
// Ensure that metadata does not contain sensitive information
crypto.RemoveSensitiveEntries(metadata)
// Create the object..
objInfo, err := putObject(ctx, bucket, object, pReader, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
switch {
case objInfo.IsCompressed():
if !strings.HasSuffix(objInfo.ETag, "-1") {
objInfo.ETag = objInfo.ETag + "-1"
}
case crypto.IsEncrypted(objInfo.UserDefined):
switch {
case crypto.S3.IsEncrypted(objInfo.UserDefined):
w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
objInfo.ETag, _ = DecryptETag(objectEncryptionKey, ObjectInfo{ETag: objInfo.ETag})
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 len(objInfo.ETag) >= 32 && strings.Count(objInfo.ETag, "-") != 1 {
objInfo.ETag = objInfo.ETag[len(objInfo.ETag)-32:]
}
}
}
if mustReplicate(ctx, r, bucket, object, metadata, "") {
defer replicateObject(GlobalContext, bucket, object, objInfo.VersionID, objectAPI, &eventArgs{
EventName: event.ObjectCreatedPut,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
}, false)
}
setPutObjHeaders(w, objInfo, false)
writeSuccessResponseHeadersOnly(w)
// Notify object created event.
sendEvent(eventArgs{
EventName: event.ObjectCreatedPut,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
/// 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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) && !api.AllowSSEKMS() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r)) // SSE-KMS is not supported
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Check if bucket encryption is enabled
_, err = globalBucketSSEConfigSys.Get(bucket)
// This request header needs to be set prior to setting ObjectOptions
if (globalAutoEncryption || err == nil) && !crypto.SSEC.IsRequested(r.Header) && !crypto.S3KMS.IsRequested(r.Header) {
r.Header.Add(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
}
// Validate storage class metadata if present
if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" {
if !storageclass.IsValid(sc) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL, guessIsBrowserReq(r))
return
}
}
var encMetadata = map[string]string{}
if objectAPI.IsEncryptionSupported() {
if crypto.IsRequested(r.Header) {
if err = setEncryptionMetadata(r, bucket, object, encMetadata); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
retPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectRetentionAction)
holdPerms := isPutActionAllowed(getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectLegalHoldAction)
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
retentionMode, retentionDate, legalHold, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, getObjectInfo, retPerms, holdPerms)
if s3Err == ErrNone && retentionMode.Valid() {
metadata[strings.ToLower(xhttp.AmzObjectLockMode)] = string(retentionMode)
metadata[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = retentionDate.UTC().Format(iso8601TimeFormat)
}
if s3Err == ErrNone && legalHold.Status.Valid() {
metadata[strings.ToLower(xhttp.AmzObjectLockLegalHold)] = string(legalHold.Status)
}
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if mustReplicate(ctx, r, bucket, object, metadata, "") {
metadata[xhttp.AmzBucketReplicationStatus] = string(replication.Pending)
}
// 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"] = compressionAlgorithmV2
}
opts, err := putOpts(ctx, r, bucket, object, metadata)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
newMultipartUpload := objectAPI.NewMultipartUpload
uploadID, err := newMultipartUpload(ctx, bucket, object, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r)) // SSE-KMS is not supported
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
dstBucket := vars["bucket"]
dstObject, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, dstBucket, dstObject); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Read escaped copy source path to check for parameters.
cpSrcPath := r.Header.Get(xhttp.AmzCopySource)
var vid string
if u, err := url.Parse(cpSrcPath); err == nil {
vid = strings.TrimSpace(u.Query().Get(xhttp.VersionID))
// Note that url.Parse does the unescaping
cpSrcPath = u.Path
}
srcBucket, srcObject := path2BucketObject(cpSrcPath)
// If source object is empty or bucket is empty, reply back invalid copy source.
if srcObject == "" || srcBucket == "" {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL, guessIsBrowserReq(r))
return
}
if vid != "" && vid != nullVersionID {
_, err := uuid.Parse(vid)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, VersionNotFound{
Bucket: srcBucket,
Object: srcObject,
VersionID: vid,
}), r.URL, guessIsBrowserReq(r))
return
}
}
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
uploadID := r.URL.Query().Get(xhttp.UploadID)
partIDString := r.URL.Query().Get(xhttp.PartNumber)
partID, err := strconv.Atoi(partIDString)
if err != nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL, guessIsBrowserReq(r))
return
}
// check partID with maximum part ID for multipart objects
if isMaxPartID(partID) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL, guessIsBrowserReq(r))
return
}
var srcOpts, dstOpts ObjectOptions
srcOpts, err = copySrcOpts(ctx, r, srcBucket, srcObject)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
srcOpts.VersionID = vid
// convert copy src and dst encryption options for GET/PUT calls
var getOpts = ObjectOptions{VersionID: srcOpts.VersionID}
if srcOpts.ServerSideEncryption != nil {
getOpts.ServerSideEncryption = encrypt.SSE(srcOpts.ServerSideEncryption)
}
dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, nil)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
getObjectNInfo := objectAPI.GetObjectNInfo
if api.CacheAPI() != nil {
getObjectNInfo = api.CacheAPI().GetObjectNInfo
}
// Get request range.
var rs *HTTPRangeSpec
var parseRangeErr error
if rangeHeader := r.Header.Get(xhttp.AmzCopySourceRange); rangeHeader != "" {
rs, parseRangeErr = parseCopyPartRangeSpec(rangeHeader)
}
checkCopyPartPrecondFn := func(o ObjectInfo) bool {
if objectAPI.IsEncryptionSupported() {
if _, err := DecryptObjectInfo(&o, r); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return true
}
}
if checkCopyObjectPartPreconditions(ctx, w, r, o) {
return true
}
if parseRangeErr != nil {
logger.LogIf(ctx, parseRangeErr)
writeCopyPartErr(ctx, w, parseRangeErr, r.URL, guessIsBrowserReq(r))
// Range header mismatch is pre-condition like failure
// so return true to indicate Range precondition failed.
return true
}
return false
}
getOpts.CheckPrecondFn = checkCopyPartPrecondFn
gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, readLock, getOpts)
if err != nil {
if isErrPreconditionFailed(err) {
return
}
if globalBucketVersioningSys.Enabled(srcBucket) && gr != nil {
// Versioning enabled quite possibly object is deleted might be delete-marker
// if present set the headers, no idea why AWS S3 sets these headers.
if gr.ObjInfo.VersionID != "" && gr.ObjInfo.DeleteMarker {
w.Header()[xhttp.AmzVersionID] = []string{gr.ObjInfo.VersionID}
w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(gr.ObjInfo.DeleteMarker)}
}
}
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
defer gr.Close()
srcInfo := gr.ObjInfo
actualPartSize := srcInfo.Size
if crypto.IsEncrypted(srcInfo.UserDefined) {
actualPartSize, err = srcInfo.DecryptedSize()
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
if err := enforceBucketQuota(ctx, dstBucket, actualPartSize); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Special care for CopyObjectPart
if partRangeErr := checkCopyPartRangeWithSize(rs, actualPartSize); partRangeErr != nil {
writeCopyPartErr(ctx, w, partRangeErr, r.URL, guessIsBrowserReq(r))
return
}
// Get the object offset & length
startOffset, length, err := rs.GetOffsetLength(actualPartSize)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
/// maximum copy size for multipart objects in a single operation
if isMaxAllowedPartSize(length) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL, guessIsBrowserReq(r))
return
}
if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {
var dstRecords []dns.SrvRecord
dstRecords, err = globalDNSConfig.Get(dstBucket)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Send PutObject request to appropriate instance (in federated deployment)
core, rerr := getRemoteInstanceClientLongTimeout(r, getHostFromSrv(dstRecords))
if rerr != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL, guessIsBrowserReq(r))
return
}
partInfo, err := core.PutObjectPart(ctx, dstBucket, dstObject, uploadID, partID,
srcInfo.Reader, srcInfo.Size, "", "", dstOpts.ServerSideEncryption)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
encodedSuccessResponse := encodeResponse(response)
// Write success response.
writeSuccessResponseXML(w, encodedSuccessResponse)
return
}
actualPartSize = length
var reader io.Reader
mi, err := objectAPI.GetMultipartInfo(ctx, dstBucket, dstObject, uploadID, dstOpts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Read compression metadata preserved in the init multipart for the decision.
_, isCompressed := mi.UserDefined[ReservedMetadataPrefix+"compression"]
// Compress only if the compression is enabled during initial multipart.
if isCompressed {
s2c := newS2CompressReader(gr)
defer s2c.Close()
reader = s2c
length = -1
} else {
reader = gr
}
srcInfo.Reader, err = hash.NewReader(reader, length, "", "", actualPartSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, mi.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
rawReader := srcInfo.Reader
pReader := NewPutObjReader(rawReader, nil, nil)
isEncrypted := crypto.IsEncrypted(mi.UserDefined)
var objectEncryptionKey crypto.ObjectKey
if objectAPI.IsEncryptionSupported() && !isCompressed && isEncrypted {
if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(mi.UserDefined) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3.IsEncrypted(mi.UserDefined) && crypto.SSEC.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL, guessIsBrowserReq(r))
return
}
var key []byte
if crypto.SSEC.IsRequested(r.Header) {
key, err = ParseSSECustomerRequest(r)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
key, err = decryptObjectInfo(key, dstBucket, dstObject, mi.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
copy(objectEncryptionKey[:], key)
partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
reader, err = sio.EncryptReader(reader, sio.Config{Key: partEncryptionKey[:]})
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
info := ObjectInfo{Size: length}
srcInfo.Reader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", length, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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", mustGetClaimsFromToken(r))
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if crypto.S3KMS.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r)) // SSE-KMS is not supported
return
}
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// To detect if the client has disconnected.
r.Body = &contextReader{r.Body, r.Context()}
// X-Amz-Copy-Source shouldn't be set for this call.
if _, ok := r.Header[xhttp.AmzCopySource]; ok {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL, guessIsBrowserReq(r))
return
}
// get Content-Md5 sent by client and verify if valid
md5Bytes, err := checkValidMD5(r.Header)
if err != nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidDigest), r.URL, guessIsBrowserReq(r))
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[xhttp.AmzDecodedContentLength]; ok {
if sizeStr[0] == "" {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
size, err = strconv.ParseInt(sizeStr[0], 10, 64)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
}
if size == -1 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
/// maximum Upload size for multipart objects in a single operation
if isMaxAllowedPartSize(size) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL, guessIsBrowserReq(r))
return
}
uploadID := r.URL.Query().Get(xhttp.UploadID)
partIDString := r.URL.Query().Get(xhttp.PartNumber)
partID, err := strconv.Atoi(partIDString)
if err != nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL, guessIsBrowserReq(r))
return
}
// check partID with maximum part ID for multipart objects
if isMaxPartID(partID) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL, guessIsBrowserReq(r))
return
}
var (
md5hex = hex.EncodeToString(md5Bytes)
sha256hex = ""
reader io.Reader
s3Error APIErrorCode
)
reader = r.Body
if s3Error = isPutActionAllowed(rAuthType, bucket, object, r, iampolicy.PutObjectAction); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
switch rAuthType {
case authTypeStreamingSigned:
// Initialize stream signature verifier.
reader, s3Error = newSignV4ChunkedReader(r)
if s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
case authTypeSignedV2, authTypePresignedV2:
if s3Error = isReqAuthenticatedV2(r); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
case authTypePresigned, authTypeSigned:
if s3Error = reqSignatureV4Verify(r, globalServerRegion, serviceS3); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
if !skipContentSha256Cksum(r) {
sha256hex = getContentSha256Cksum(r, serviceS3)
}
}
if err := enforceBucketQuota(ctx, bucket, size); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
actualSize := size
// get encryption options
var opts ObjectOptions
if crypto.SSEC.IsRequested(r.Header) {
opts, err = getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
mi, err := objectAPI.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Read compression metadata preserved in the init multipart for the decision.
_, isCompressed := mi.UserDefined[ReservedMetadataPrefix+"compression"]
if objectAPI.IsCompressionSupported() && isCompressed {
actualReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Set compression metrics.
s2c := newS2CompressReader(actualReader)
defer s2c.Close()
reader = s2c
size = -1 // Since compressed size is un-predictable.
md5hex = "" // Do not try to verify the content.
sha256hex = ""
}
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
rawReader := hashReader
pReader := NewPutObjReader(rawReader, nil, nil)
isEncrypted := crypto.IsEncrypted(mi.UserDefined)
var objectEncryptionKey crypto.ObjectKey
if objectAPI.IsEncryptionSupported() && !isCompressed && isEncrypted {
if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(mi.UserDefined) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL, guessIsBrowserReq(r))
return
}
opts, err = putOpts(ctx, r, bucket, object, mi.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
var key []byte
if crypto.SSEC.IsRequested(r.Header) {
key, err = ParseSSECustomerRequest(r)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
// Calculating object encryption key
key, err = decryptObjectInfo(key, bucket, object, mi.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
copy(objectEncryptionKey[:], key)
partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
in := io.Reader(hashReader)
if size > encryptBufferThreshold {
// The encryption reads in blocks of 64KB.
// We add a buffer on bigger files to reduce the number of syscalls upstream.
in = bufio.NewReaderSize(hashReader, encryptBufferSize)
}
reader, err = sio.EncryptReader(in, sio.Config{Key: partEncryptionKey[:]})
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
info := ObjectInfo{Size: size}
// do not try to verify encrypted content
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", size, globalCLIContext.StrictS3Compat)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
pReader = NewPutObjReader(rawReader, hashReader, &objectEncryptionKey)
}
putObjectPart := objectAPI.PutObjectPart
partInfo, err := putObjectPart(ctx, bucket, object, uploadID, partID, pReader, opts)
if err != nil {
// Verify if the underlying error is signature mismatch.
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
etag := partInfo.ETag
if isEncrypted {
etag = tryDecryptETag(objectEncryptionKey[:], partInfo.ETag, crypto.SSEC.IsRequested(r.Header))
}
// We must not use the http.Header().Set method here because some (broken)
// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
// Therefore, we have to set the ETag directly as map entry.
w.Header()[xhttp.ETag] = []string{"\"" + 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", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
abortMultipartUpload := objectAPI.AbortMultipartUpload
if s3Error := checkRequestAuthType(ctx, r, policy.AbortMultipartUploadAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
uploadID, _, _, _, s3Error := getObjectResources(r.URL.Query())
if s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
if err := abortMultipartUpload(ctx, bucket, object, uploadID); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.ListMultipartUploadPartsAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
uploadID, partNumberMarker, maxParts, encodingType, s3Error := getObjectResources(r.URL.Query())
if s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
if partNumberMarker < 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartNumberMarker), r.URL, guessIsBrowserReq(r))
return
}
if maxParts < 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL, guessIsBrowserReq(r))
return
}
var opts ObjectOptions
listPartsInfo, err := objectAPI.ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
var ssec bool
if objectAPI.IsEncryptionSupported() && crypto.IsEncrypted(listPartsInfo.UserDefined) {
var key []byte
if crypto.SSEC.IsEncrypted(listPartsInfo.UserDefined) {
ssec = true
}
var objectEncryptionKey []byte
if crypto.S3.IsEncrypted(listPartsInfo.UserDefined) {
// Calculating object encryption key
objectEncryptionKey, err = decryptObjectInfo(key, bucket, object, listPartsInfo.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
for i := range listPartsInfo.Parts {
curp := listPartsInfo.Parts[i]
curp.ETag = tryDecryptETag(objectEncryptionKey, curp.ETag, ssec)
if !ssec {
var partSize uint64
partSize, err = sio.DecryptedSize(uint64(curp.Size))
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
curp.Size = int64(partSize)
}
listPartsInfo.Parts[i] = curp
}
}
response := generateListPartsResponse(listPartsInfo, encodingType)
encodedSuccessResponse := encodeResponse(response)
// Write success response.
writeSuccessResponseXML(w, encodedSuccessResponse)
}
type whiteSpaceWriter struct {
http.ResponseWriter
http.Flusher
written bool
}
func (w *whiteSpaceWriter) Write(b []byte) (n int, err error) {
n, err = w.ResponseWriter.Write(b)
w.written = true
return
}
func (w *whiteSpaceWriter) WriteHeader(statusCode int) {
if !w.written {
w.ResponseWriter.WriteHeader(statusCode)
}
}
// Send empty whitespaces every 10 seconds to the client till completeMultiPartUpload() is
// done so that the client does not time out. Downside is we might send 200 OK and
// then send error XML. But accoording to S3 spec the client is supposed to check
// for error XML even if it received 200 OK. But for erasure this is not a problem
// as completeMultiPartUpload() is quick. Even For FS, it would not be an issue as
// we do background append as and when the parts arrive and completeMultiPartUpload
// is quick. Only in a rare case where parts would be out of order will
// FS:completeMultiPartUpload() take a longer time.
func sendWhiteSpace(w http.ResponseWriter) <-chan bool {
doneCh := make(chan bool)
go func() {
ticker := time.NewTicker(time.Second * 10)
headerWritten := false
for {
select {
case <-ticker.C:
// Write header if not written yet.
if !headerWritten {
w.Write([]byte(xml.Header))
headerWritten = true
}
// Once header is written keep writing empty spaces
// which are ignored by client SDK XML parsers.
// This occurs when server takes long time to completeMultiPartUpload()
w.Write([]byte(" "))
w.(http.Flusher).Flush()
case doneCh <- headerWritten:
ticker.Stop()
return
}
}
}()
return doneCh
}
// 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", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Content-Length is required and should be non-zero
if r.ContentLength <= 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
return
}
// Get upload id.
uploadID, _, _, _, s3Error := getObjectResources(r.URL.Query())
if s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
complMultipartUpload := &CompleteMultipartUpload{}
if err = xmlDecoder(r.Body, complMultipartUpload, r.ContentLength); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if len(complMultipartUpload.Parts) == 0 {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedXML), r.URL, guessIsBrowserReq(r))
return
}
if !sort.IsSorted(CompletedParts(complMultipartUpload.Parts)) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartOrder), r.URL, guessIsBrowserReq(r))
return
}
// Reject retention or governance headers if set, CompleteMultipartUpload spec
// does not use these headers, and should not be passed down to checkPutObjectLockAllowed
if objectlock.IsObjectLockRequested(r.Header) || objectlock.IsObjectLockGovernanceBypassSet(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL, guessIsBrowserReq(r))
return
}
if _, _, _, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, objectAPI.GetObjectInfo, ErrNone, ErrNone); s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
var objectEncryptionKey []byte
var isEncrypted, ssec bool
var opts ObjectOptions
if objectAPI.IsEncryptionSupported() {
mi, err := objectAPI.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if crypto.IsEncrypted(mi.UserDefined) {
var key []byte
isEncrypted = true
ssec = crypto.SSEC.IsEncrypted(mi.UserDefined)
if crypto.S3.IsEncrypted(mi.UserDefined) {
// Calculating object encryption key
objectEncryptionKey, err = decryptObjectInfo(key, bucket, object, mi.UserDefined)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
}
}
partsMap := make(map[string]PartInfo)
if isEncrypted {
maxParts := 10000
listPartsInfo, err := objectAPI.ListObjectParts(ctx, bucket, object, uploadID, 0, maxParts, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
for _, part := range listPartsInfo.Parts {
partsMap[strconv.Itoa(part.PartNumber)] = part
}
}
// Complete parts.
var completeParts []CompletePart
for _, part := range complMultipartUpload.Parts {
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(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL, guessIsBrowserReq(r))
return
}
part.ETag = bkPartInfo.ETag
}
}
completeParts = append(completeParts, part)
}
completeMultiPartUpload := objectAPI.CompleteMultipartUpload
// This code is specifically to handle the requirements for slow
// complete multipart upload operations on FS mode.
writeErrorResponseWithoutXMLHeader := func(ctx context.Context, w http.ResponseWriter, err APIError, reqURL *url.URL) {
switch err.Code {
case "SlowDown", "XMinioServerNotInitialized", "XMinioReadQuorum", "XMinioWriteQuorum":
// Set retxry-after header to indicate user-agents to retry request after 120secs.
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After
w.Header().Set(xhttp.RetryAfter, "120")
}
// Generate error response.
errorResponse := getAPIErrorResponse(ctx, err, reqURL.Path,
w.Header().Get(xhttp.AmzRequestID), globalDeploymentID)
encodedErrorResponse, _ := xml.Marshal(errorResponse)
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, string(mimeXML))
w.Write(encodedErrorResponse)
w.(http.Flusher).Flush()
}
setEventStreamHeaders(w)
w = &whiteSpaceWriter{ResponseWriter: w, Flusher: w.(http.Flusher)}
completeDoneCh := sendWhiteSpace(w)
objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, completeParts, opts)
// Stop writing white spaces to the client. Note that close(doneCh) style is not used as it
// can cause white space to be written after we send XML response in a race condition.
headerWritten := <-completeDoneCh
if err != nil {
if headerWritten {
writeErrorResponseWithoutXMLHeader(ctx, w, toAPIError(ctx, err), r.URL)
} else {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
}
return
}
// Get object location.
location := getObjectLocation(r, globalDomainNames, bucket, object)
// Generate complete multipart response.
response := generateCompleteMultpartUploadResponse(bucket, object, location, objInfo.ETag)
var encodedSuccessResponse []byte
if !headerWritten {
encodedSuccessResponse = encodeResponse(response)
} else {
encodedSuccessResponse, err = xml.Marshal(response)
if err != nil {
writeErrorResponseWithoutXMLHeader(ctx, w, toAPIError(ctx, err), r.URL)
return
}
}
setPutObjHeaders(w, objInfo, false)
if mustReplicate(ctx, r, bucket, object, objInfo.UserDefined, objInfo.ReplicationStatus.String()) {
defer replicateObject(GlobalContext, bucket, object, objInfo.VersionID, objectAPI, &eventArgs{
EventName: event.ObjectCreatedCompleteMultipartUpload,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
}, false)
}
// Write success response.
writeSuccessResponseXML(w, encodedSuccessResponse)
// Notify object created event.
sendEvent(eventArgs{
EventName: event.ObjectCreatedCompleteMultipartUpload,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
/// 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", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.DeleteObjectAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
if globalDNSConfig != nil {
_, err := globalDNSConfig.Get(bucket)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
}
opts, err := delOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
apiErr := ErrNone
if rcfg, _ := globalBucketObjectLockSys.Get(bucket); rcfg.LockEnabled {
if opts.VersionID != "" {
apiErr = enforceRetentionBypassForDelete(ctx, r, bucket, ObjectToDelete{
ObjectName: object,
VersionID: opts.VersionID,
}, getObjectInfo)
if apiErr != ErrNone && apiErr != ErrNoSuchKey {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(apiErr), r.URL, guessIsBrowserReq(r))
return
}
}
}
if apiErr == ErrNone {
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
objInfo, err := deleteObject(ctx, objectAPI, api.CacheAPI(), bucket, object, r, opts)
if err != nil {
switch err.(type) {
case BucketNotFound:
// When bucket doesn't exist specially handle it.
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Ignore delete object errors while replying to client, since we are suppposed to reply only 204.
}
setPutObjHeaders(w, objInfo, true)
}
writeSuccessNoContent(w)
}
// PutObjectLegalHoldHandler - set legal hold configuration to object,
func (api objectAPIHandlers) PutObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "PutObjectLegalHold")
defer logger.AuditLog(w, r, "PutObjectLegalHold", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
// Check permissions to perform this legal hold operation
if s3Err := checkRequestAuthType(ctx, r, policy.PutObjectLegalHoldAction, bucket, object); s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if _, err := objectAPI.GetBucketInfo(ctx, bucket); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if !hasContentMD5(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL, guessIsBrowserReq(r))
return
}
if rcfg, _ := globalBucketObjectLockSys.Get(bucket); !rcfg.LockEnabled {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidBucketObjectLockConfiguration), r.URL, guessIsBrowserReq(r))
return
}
legalHold, err := objectlock.ParseObjectLegalHold(r.Body)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockLegalHold)] = strings.ToUpper(string(legalHold.Status))
if objInfo.UserTags != "" {
objInfo.UserDefined[xhttp.AmzObjectTagging] = objInfo.UserTags
}
objInfo.metadataOnly = true
if _, err = objectAPI.CopyObject(ctx, bucket, object, bucket, object, objInfo, ObjectOptions{
VersionID: opts.VersionID,
}, ObjectOptions{
VersionID: opts.VersionID,
}); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
writeSuccessResponseHeadersOnly(w)
// Notify object event.
sendEvent(eventArgs{
EventName: event.ObjectCreatedPutLegalHold,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
// GetObjectLegalHoldHandler - get legal hold configuration to object,
func (api objectAPIHandlers) GetObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "GetObjectLegalHold")
defer logger.AuditLog(w, r, "GetObjectLegalHold", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectLegalHoldAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
if rcfg, _ := globalBucketObjectLockSys.Get(bucket); !rcfg.LockEnabled {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidBucketObjectLockConfiguration), r.URL, guessIsBrowserReq(r))
return
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
legalHold := objectlock.GetObjectLegalHoldMeta(objInfo.UserDefined)
if legalHold.IsEmpty() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNoSuchObjectLockConfiguration), r.URL, guessIsBrowserReq(r))
return
}
writeSuccessResponseXML(w, encodeResponse(legalHold))
// Notify object legal hold accessed via a GET request.
sendEvent(eventArgs{
EventName: event.ObjectAccessedGetLegalHold,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
// PutObjectRetentionHandler - set object hold configuration to object,
func (api objectAPIHandlers) PutObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "PutObjectRetention")
defer logger.AuditLog(w, r, "PutObjectRetention", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
cred, owner, claims, s3Err := validateSignature(getRequestAuthType(r), r)
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if _, err := objectAPI.GetBucketInfo(ctx, bucket); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if !hasContentMD5(r.Header) {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL, guessIsBrowserReq(r))
return
}
if rcfg, _ := globalBucketObjectLockSys.Get(bucket); !rcfg.LockEnabled {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidBucketObjectLockConfiguration), r.URL, guessIsBrowserReq(r))
return
}
objRetention, err := objectlock.ParseObjectRetention(r.Body)
if err != nil {
apiErr := errorCodes.ToAPIErr(ErrMalformedXML)
apiErr.Description = err.Error()
writeErrorResponse(ctx, w, apiErr, r.URL, guessIsBrowserReq(r))
return
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
objInfo, s3Err := enforceRetentionBypassForPut(ctx, r, bucket, object, getObjectInfo, objRetention, cred, owner, claims)
if s3Err != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL, guessIsBrowserReq(r))
return
}
if objRetention.Mode.Valid() {
objInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockMode)] = string(objRetention.Mode)
objInfo.UserDefined[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = objRetention.RetainUntilDate.UTC().Format(time.RFC3339)
} else {
delete(objInfo.UserDefined, strings.ToLower(xhttp.AmzObjectLockRetainUntilDate))
delete(objInfo.UserDefined, strings.ToLower(xhttp.AmzObjectLockMode))
}
if objInfo.UserTags != "" {
objInfo.UserDefined[xhttp.AmzObjectTagging] = objInfo.UserTags
}
objInfo.metadataOnly = true // Perform only metadata updates.
if _, err = objectAPI.CopyObject(ctx, bucket, object, bucket, object, objInfo, ObjectOptions{
VersionID: opts.VersionID,
}, ObjectOptions{
VersionID: opts.VersionID,
}); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
writeSuccessNoContent(w)
// Notify object event.
sendEvent(eventArgs{
EventName: event.ObjectCreatedPutRetention,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
// GetObjectRetentionHandler - get object retention configuration of object,
func (api objectAPIHandlers) GetObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "GetObjectRetention")
defer logger.AuditLog(w, r, "GetObjectRetention", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectRetentionAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
getObjectInfo := objectAPI.GetObjectInfo
if api.CacheAPI() != nil {
getObjectInfo = api.CacheAPI().GetObjectInfo
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objInfo, err := getObjectInfo(ctx, bucket, object, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
retention := objectlock.GetObjectRetentionMeta(objInfo.UserDefined)
if !retention.Mode.Valid() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNoSuchObjectLockConfiguration), r.URL, guessIsBrowserReq(r))
return
}
writeSuccessResponseXML(w, encodeResponse(retention))
// Notify object retention accessed via a GET request.
sendEvent(eventArgs{
EventName: event.ObjectAccessedGetRetention,
BucketName: bucket,
Object: objInfo,
ReqParams: extractReqParams(r),
RespElements: extractRespElements(w),
UserAgent: r.UserAgent(),
Host: handlers.GetSourceIP(r),
})
}
// GetObjectTaggingHandler - GET object tagging
func (api objectAPIHandlers) GetObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "GetObjectTagging")
defer logger.AuditLog(w, r, "GetObjectTagging", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objAPI := api.ObjectAPI()
if objAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if !objAPI.IsTaggingSupported() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
// Allow getObjectTagging if policy action is set.
if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectTaggingAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Get object tags
tags, err := objAPI.GetObjectTags(ctx, bucket, object, opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if opts.VersionID != "" {
w.Header()[xhttp.AmzVersionID] = []string{opts.VersionID}
}
writeSuccessResponseXML(w, encodeResponse(tags))
}
// PutObjectTaggingHandler - PUT object tagging
func (api objectAPIHandlers) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "PutObjectTagging")
defer logger.AuditLog(w, r, "PutObjectTagging", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
objAPI := api.ObjectAPI()
if objAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if !objAPI.IsTaggingSupported() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
// Allow putObjectTagging if policy action is set
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectTaggingAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
tags, err := tags.ParseObjectXML(io.LimitReader(r.Body, r.ContentLength))
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Put object tags
err = objAPI.PutObjectTags(ctx, bucket, object, tags.String(), opts)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if opts.VersionID != "" {
w.Header()[xhttp.AmzVersionID] = []string{opts.VersionID}
}
writeSuccessResponseHeadersOnly(w)
}
// DeleteObjectTaggingHandler - DELETE object tagging
func (api objectAPIHandlers) DeleteObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "DeleteObjectTagging")
defer logger.AuditLog(w, r, "DeleteObjectTagging", mustGetClaimsFromToken(r))
objAPI := api.ObjectAPI()
if objAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if !objAPI.IsTaggingSupported() {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object, err := url.PathUnescape(vars["object"])
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Allow deleteObjectTagging if policy action is set
if s3Error := checkRequestAuthType(ctx, r, policy.DeleteObjectTaggingAction, bucket, object); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
opts, err := getOpts(ctx, r, bucket, object)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Delete object tags
if err = objAPI.DeleteObjectTags(ctx, bucket, object, opts); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if opts.VersionID != "" {
w.Header()[xhttp.AmzVersionID] = []string{opts.VersionID}
}
writeSuccessNoContent(w)
}