mirror of https://github.com/minio/minio.git
937 lines
28 KiB
Go
937 lines
28 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2015 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 (
|
|
"encoding/hex"
|
|
"encoding/xml"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"path"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
|
|
mux "github.com/gorilla/mux"
|
|
)
|
|
|
|
var objLayerMutex *sync.Mutex
|
|
var globalObjectAPI ObjectLayer
|
|
|
|
func init() {
|
|
objLayerMutex = &sync.Mutex{}
|
|
}
|
|
|
|
// supportedGetReqParams - supported request parameters for GET presigned request.
|
|
var supportedGetReqParams = map[string]string{
|
|
"response-expires": "Expires",
|
|
"response-content-type": "Content-Type",
|
|
"response-cache-control": "Cache-Control",
|
|
"response-content-encoding": "Content-Encoding",
|
|
"response-content-language": "Content-Language",
|
|
"response-content-disposition": "Content-Disposition",
|
|
}
|
|
|
|
// setGetRespHeaders - set any requested parameters as response headers.
|
|
func setGetRespHeaders(w http.ResponseWriter, reqParams url.Values) {
|
|
for k, v := range reqParams {
|
|
if header, ok := supportedGetReqParams[k]; ok {
|
|
w.Header()[header] = v
|
|
}
|
|
}
|
|
}
|
|
|
|
// errAllowableNotFound - For an anon user, return 404 if have ListBucket, 403 otherwise
|
|
// this is in keeping with the permissions sections of the docs of both:
|
|
// HEAD Object: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectHEAD.html
|
|
// GET Object: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
|
|
func errAllowableObjectNotFound(bucket string, r *http.Request) APIErrorCode {
|
|
if getRequestAuthType(r) == authTypeAnonymous {
|
|
//we care about the bucket as a whole, not a particular resource
|
|
url := *r.URL
|
|
url.Path = "/" + bucket
|
|
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:ListBucket", &url); s3Error != ErrNone {
|
|
return ErrAccessDenied
|
|
}
|
|
}
|
|
return ErrNoSuchKey
|
|
}
|
|
|
|
// Simple way to convert a func to io.Writer type.
|
|
type funcToWriter func([]byte) (int, error)
|
|
|
|
func (f funcToWriter) Write(p []byte) (int, error) {
|
|
return f(p)
|
|
}
|
|
|
|
// 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) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
// Fetch object stat info.
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:GetObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
objInfo, err := objectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
apiErr := toAPIErrorCode(err)
|
|
if apiErr == ErrNoSuchKey {
|
|
apiErr = errAllowableObjectNotFound(bucket, r)
|
|
}
|
|
writeErrorResponse(w, r, apiErr, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Get request range.
|
|
var hrange *httpRange
|
|
rangeHeader := r.Header.Get("Range")
|
|
if rangeHeader != "" {
|
|
if hrange, err = parseRequestRange(rangeHeader, objInfo.Size); err != nil {
|
|
// Handle only errInvalidRange
|
|
// Ignore other parse error and treat it as regular Get request like Amazon S3.
|
|
if err == errInvalidRange {
|
|
writeErrorResponse(w, r, ErrInvalidRange, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// log the error.
|
|
errorIf(err, "Invalid request range")
|
|
}
|
|
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Get the object.
|
|
startOffset := int64(0)
|
|
length := objInfo.Size
|
|
if hrange != nil {
|
|
startOffset = hrange.offsetBegin
|
|
length = hrange.getLength()
|
|
}
|
|
// Indicates if any data was written to the http.ResponseWriter
|
|
dataWritten := false
|
|
// io.Writer type which keeps track if any data was written.
|
|
writer := funcToWriter(func(p []byte) (int, error) {
|
|
if !dataWritten {
|
|
// Set headers on the first write.
|
|
// Set standard object headers.
|
|
setObjectHeaders(w, objInfo, hrange)
|
|
|
|
// Set any additional requested response headers.
|
|
setGetRespHeaders(w, r.URL.Query())
|
|
|
|
dataWritten = true
|
|
}
|
|
return w.Write(p)
|
|
})
|
|
|
|
// Reads the object at startOffset and writes to mw.
|
|
if err := objectAPI.GetObject(bucket, object, startOffset, length, writer); err != nil {
|
|
errorIf(err, "Unable to write to client.")
|
|
if !dataWritten {
|
|
// Error response only if no data has been written to client yet. i.e if
|
|
// partial data has already been written before an error
|
|
// occurred then no point in setting StatusCode and
|
|
// sending error XML.
|
|
apiErr := toAPIErrorCode(err)
|
|
writeErrorResponse(w, r, apiErr, r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
if !dataWritten {
|
|
// If ObjectAPI.GetObject did not return error and no data has
|
|
// been written it would mean that it is a 0-byte object.
|
|
// call wrter.Write(nil) to set appropriate headers.
|
|
writer.Write(nil)
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:GetObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
objInfo, err := objectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
apiErr := toAPIErrorCode(err)
|
|
if apiErr == ErrNoSuchKey {
|
|
apiErr = errAllowableObjectNotFound(bucket, r)
|
|
}
|
|
writeErrorResponse(w, r, apiErr, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Set standard object headers.
|
|
setObjectHeaders(w, objInfo, nil)
|
|
|
|
// Successful response.
|
|
w.WriteHeader(http.StatusOK)
|
|
}
|
|
|
|
// CopyObjectHandler - Copy Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket
|
|
// while reading the object from another source.
|
|
func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
// TODO: Reject requests where body/payload is present, for now we don't even read it.
|
|
|
|
// objectSource
|
|
objectSource, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
|
|
if err != nil {
|
|
// Save unescaped string as is.
|
|
objectSource = r.Header.Get("X-Amz-Copy-Source")
|
|
}
|
|
|
|
// Skip the first element if it is '/', split the rest.
|
|
objectSource = strings.TrimPrefix(objectSource, "/")
|
|
splits := strings.SplitN(objectSource, "/", 2)
|
|
|
|
// Save sourceBucket and sourceObject extracted from url Path.
|
|
var sourceBucket, sourceObject string
|
|
if len(splits) == 2 {
|
|
sourceBucket = splits[0]
|
|
sourceObject = splits[1]
|
|
}
|
|
// If source object is empty, reply back error.
|
|
if sourceObject == "" {
|
|
writeErrorResponse(w, r, ErrInvalidCopySource, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Source and destination objects cannot be same, reply back error.
|
|
if sourceObject == object && sourceBucket == bucket {
|
|
writeErrorResponse(w, r, ErrInvalidCopyDest, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
objInfo, err := objectAPI.GetObjectInfo(sourceBucket, sourceObject)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), objectSource)
|
|
return
|
|
}
|
|
|
|
// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
|
|
if checkCopyObjectPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for object in a single CopyObject operation.
|
|
if isMaxObjectSize(objInfo.Size) {
|
|
writeErrorResponse(w, r, ErrEntityTooLarge, objectSource)
|
|
return
|
|
}
|
|
|
|
pipeReader, pipeWriter := io.Pipe()
|
|
go func() {
|
|
startOffset := int64(0) // Read the whole file.
|
|
// Get the object.
|
|
gErr := objectAPI.GetObject(sourceBucket, sourceObject, startOffset, objInfo.Size, pipeWriter)
|
|
if gErr != nil {
|
|
errorIf(gErr, "Unable to read an object.")
|
|
pipeWriter.CloseWithError(gErr)
|
|
return
|
|
}
|
|
pipeWriter.Close() // Close.
|
|
}()
|
|
|
|
// Size of object.
|
|
size := objInfo.Size
|
|
|
|
// Save metadata.
|
|
metadata := make(map[string]string)
|
|
// Save other metadata if available.
|
|
metadata = objInfo.UserDefined
|
|
|
|
// Do not set `md5sum` as CopyObject will not keep the
|
|
// same md5sum as the source.
|
|
|
|
// Create the object.
|
|
md5Sum, err := objectAPI.PutObject(bucket, object, size, pipeReader, metadata)
|
|
if err != nil {
|
|
// Close the this end of the pipe upon error in PutObject.
|
|
pipeReader.CloseWithError(err)
|
|
errorIf(err, "Unable to create an object.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
// Explicitly close the reader, before fetching object info.
|
|
pipeReader.Close()
|
|
|
|
objInfo, err = objectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
|
|
response := generateCopyObjectResponse(md5Sum, objInfo.ModTime)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// write headers
|
|
setCommonHeaders(w)
|
|
// write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
|
|
if globalEventNotifier.IsBucketNotificationSet(bucket) {
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCopy,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: map[string]string{
|
|
"sourceIPAddress": r.RemoteAddr,
|
|
},
|
|
})
|
|
}
|
|
}
|
|
|
|
// PutObjectHandler - PUT Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket.
|
|
func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// If the matching failed, it means that the X-Amz-Copy-Source was
|
|
// wrong, fail right here.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, r, ErrInvalidCopySource, r.URL.Path)
|
|
return
|
|
}
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// Get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
errorIf(err, "Unable to validate content-md5 format.")
|
|
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
|
|
return
|
|
}
|
|
/// if Content-Length is unknown/missing, deny the request
|
|
size := r.ContentLength
|
|
rAuthType := getRequestAuthType(r)
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse `x-amz-decoded-content-length` into its integer value", sizeStr)
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 && !contains(r.TransferEncoding, "chunked") {
|
|
writeErrorResponse(w, r, ErrMissingContentLength, r.URL.Path)
|
|
return
|
|
}
|
|
/// maximum Upload size for objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, r, ErrEntityTooLarge, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Extract metadata to be saved from incoming HTTP header.
|
|
metadata := extractMetadataFromHeader(r.Header)
|
|
// Make sure we hex encode md5sum here.
|
|
metadata["md5Sum"] = hex.EncodeToString(md5Bytes)
|
|
|
|
var md5Sum string
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
// Create anonymous object.
|
|
md5Sum, err = objectAPI.PutObject(bucket, object, size, r.Body, metadata)
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
reader, s3Error := newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
md5Sum, err = objectAPI.PutObject(bucket, object, size, reader, metadata)
|
|
case authTypePresigned, authTypeSigned:
|
|
// Initialize signature verifier.
|
|
reader := newSignVerify(r)
|
|
// Create object.
|
|
md5Sum, err = objectAPI.PutObject(bucket, object, size, reader, metadata)
|
|
}
|
|
if err != nil {
|
|
errorIf(err, "Unable to create an object.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
if md5Sum != "" {
|
|
w.Header().Set("ETag", "\""+md5Sum+"\"")
|
|
}
|
|
writeSuccessResponse(w, nil)
|
|
|
|
if globalEventNotifier.IsBucketNotificationSet(bucket) {
|
|
// Fetch object info for notifications.
|
|
objInfo, err := objectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info for \"%s\"", path.Join(bucket, object))
|
|
return
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedPut,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: map[string]string{
|
|
"sourceIPAddress": r.RemoteAddr,
|
|
},
|
|
})
|
|
}
|
|
}
|
|
|
|
/// Multipart objectAPIHandlers
|
|
|
|
// NewMultipartUploadHandler - New multipart upload
|
|
func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Extract metadata that needs to be saved.
|
|
metadata := extractMetadataFromHeader(r.Header)
|
|
|
|
uploadID, err := objectAPI.NewMultipartUpload(bucket, object, metadata)
|
|
if err != nil {
|
|
errorIf(err, "Unable to initiate new multipart upload id.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
|
|
response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// write headers
|
|
setCommonHeaders(w)
|
|
// write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// PutObjectPartHandler - Upload part
|
|
func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, throw away
|
|
size := r.ContentLength
|
|
|
|
rAuthType := getRequestAuthType(r)
|
|
// For auth type streaming signature, we need to gather a different content length.
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse `x-amz-decoded-content-length` into its integer value", sizeStr)
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, r, ErrMissingContentLength, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for multipart objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, r, ErrEntityTooLarge, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
var partMD5 string
|
|
incomingMD5 := hex.EncodeToString(md5Bytes)
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
// No need to verify signature, anonymous request access is already allowed.
|
|
partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, r.Body, incomingMD5)
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
reader, s3Error := newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, incomingMD5)
|
|
case authTypePresigned, authTypeSigned:
|
|
// Initialize signature verifier.
|
|
reader := newSignVerify(r)
|
|
partMD5, err = objectAPI.PutObjectPart(bucket, object, uploadID, partID, size, reader, incomingMD5)
|
|
}
|
|
if err != nil {
|
|
errorIf(err, "Unable to create object part.")
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
if partMD5 != "" {
|
|
w.Header().Set("ETag", "\""+partMD5+"\"")
|
|
}
|
|
writeSuccessResponse(w, nil)
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectAPIHandlers) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:AbortMultipartUpload", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
if err := objectAPI.AbortMultipartUpload(bucket, object, uploadID); err != nil {
|
|
errorIf(err, "Unable to abort multipart upload.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:ListMultipartUploadParts", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
|
|
uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
|
|
if partNumberMarker < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidPartNumberMarker, r.URL.Path)
|
|
return
|
|
}
|
|
if maxParts < 0 {
|
|
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
|
|
return
|
|
}
|
|
listPartsInfo, err := objectAPI.ListObjectParts(bucket, object, uploadID, partNumberMarker, maxParts)
|
|
if err != nil {
|
|
errorIf(err, "Unable to list uploaded parts.")
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
return
|
|
}
|
|
response := generateListPartsResponse(listPartsInfo)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
// Write headers.
|
|
setCommonHeaders(w)
|
|
// Write success response.
|
|
writeSuccessResponse(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CompleteMultipartUploadHandler - Complete multipart upload
|
|
func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Get upload id.
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
|
|
var md5Sum string
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
completeMultipartBytes, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
complMultipartUpload := &completeMultipartUpload{}
|
|
if err = xml.Unmarshal(completeMultipartBytes, complMultipartUpload); err != nil {
|
|
errorIf(err, "Unable to parse complete multipart upload XML.")
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
return
|
|
}
|
|
if len(complMultipartUpload.Parts) == 0 {
|
|
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
|
|
return
|
|
}
|
|
if !sort.IsSorted(completedParts(complMultipartUpload.Parts)) {
|
|
writeErrorResponse(w, r, ErrInvalidPartOrder, r.URL.Path)
|
|
return
|
|
}
|
|
// Complete parts.
|
|
var completeParts []completePart
|
|
for _, part := range complMultipartUpload.Parts {
|
|
part.ETag = strings.TrimPrefix(part.ETag, "\"")
|
|
part.ETag = strings.TrimSuffix(part.ETag, "\"")
|
|
completeParts = append(completeParts, part)
|
|
}
|
|
// Complete multipart upload.
|
|
// Send 200 OK
|
|
setCommonHeaders(w)
|
|
w.WriteHeader(http.StatusOK)
|
|
// Xml headers need to be sent before we possibly send whitespace characters
|
|
// to the client.
|
|
_, err = w.Write([]byte(xml.Header))
|
|
if err != nil {
|
|
errorIf(err, "Unable to write XML header for complete multipart upload")
|
|
writeErrorResponseNoHeader(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
doneCh := make(chan struct{})
|
|
|
|
// Signal that completeMultipartUpload is over via doneCh
|
|
go func(doneCh chan<- struct{}) {
|
|
md5Sum, err = objectAPI.CompleteMultipartUpload(bucket, object, uploadID, completeParts)
|
|
doneCh <- struct{}{}
|
|
}(doneCh)
|
|
|
|
sendWhiteSpaceChars(w, doneCh)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
switch oErr := err.(type) {
|
|
case PartTooSmall:
|
|
// Write part too small error.
|
|
writePartSmallErrorResponse(w, r, oErr)
|
|
default:
|
|
// Handle all other generic issues.
|
|
writeErrorResponseNoHeader(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Get object location.
|
|
location := getLocation(r)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, md5Sum)
|
|
encodedSuccessResponse, err := xml.Marshal(response)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse CompleteMultipartUpload response")
|
|
writeErrorResponseNoHeader(w, r, ErrInternalError, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
// Write success response.
|
|
w.Write(encodedSuccessResponse)
|
|
w.(http.Flusher).Flush()
|
|
|
|
if globalEventNotifier.IsBucketNotificationSet(bucket) {
|
|
// Fetch object info for notifications.
|
|
objInfo, err := objectAPI.GetObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info for \"%s\"", path.Join(bucket, object))
|
|
return
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCompleteMultipartUpload,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: map[string]string{
|
|
"sourceIPAddress": r.RemoteAddr,
|
|
},
|
|
})
|
|
}
|
|
}
|
|
|
|
/// Delete objectAPIHandlers
|
|
|
|
// DeleteObjectHandler - delete an object
|
|
func (api objectAPIHandlers) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, r, ErrServerNotInitialized, r.URL.Path)
|
|
return
|
|
}
|
|
|
|
switch getRequestAuthType(r) {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, r, ErrAccessDenied, r.URL.Path)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:DeleteObject", r.URL); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
return
|
|
}
|
|
}
|
|
/// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
|
|
/// Ignore delete object errors, since we are suppposed to reply
|
|
/// only 204.
|
|
if err := objectAPI.DeleteObject(bucket, object); err != nil {
|
|
writeSuccessNoContent(w)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
|
|
if globalEventNotifier.IsBucketNotificationSet(bucket) {
|
|
// Notify object deleted event.
|
|
eventNotify(eventData{
|
|
Type: ObjectRemovedDelete,
|
|
Bucket: bucket,
|
|
ObjInfo: ObjectInfo{
|
|
Name: object,
|
|
},
|
|
ReqParams: map[string]string{
|
|
"sourceIPAddress": r.RemoteAddr,
|
|
},
|
|
})
|
|
}
|
|
}
|