mirror of https://github.com/minio/minio.git
1094 lines
32 KiB
Go
1094 lines
32 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/ioutil"
|
|
"net"
|
|
"net/http"
|
|
"net/url"
|
|
"sort"
|
|
"strconv"
|
|
|
|
mux "github.com/gorilla/mux"
|
|
"github.com/minio/minio/pkg/hash"
|
|
)
|
|
|
|
// supportedHeadGetReqParams - supported request parameters for GET and HEAD presigned request.
|
|
var supportedHeadGetReqParams = 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",
|
|
}
|
|
|
|
// 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[k]; ok {
|
|
w.Header()[header] = v
|
|
}
|
|
}
|
|
}
|
|
|
|
// getSourceIPAddress - get the source ip address of the request.
|
|
func getSourceIPAddress(r *http.Request) string {
|
|
var ip string
|
|
// Attempt to get ip from standard headers.
|
|
// Do not support X-Forwarded-For because it is easy to spoof.
|
|
ip = r.Header.Get("X-Real-Ip")
|
|
parsedIP := net.ParseIP(ip)
|
|
// Skip non valid IP address.
|
|
if parsedIP != nil {
|
|
return ip
|
|
}
|
|
// Default to remote address if headers not set.
|
|
ip, _, _ = net.SplitHostPort(r.RemoteAddr)
|
|
return ip
|
|
}
|
|
|
|
// 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.
|
|
resource := "/" + bucket
|
|
sourceIP := getSourceIPAddress(r)
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:ListBucket", resource,
|
|
r.Referer(), sourceIP, r.URL.Query()); 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, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:GetObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Lock the object before reading.
|
|
objectLock := globalNSMutex.NewNSLock(bucket, object)
|
|
if objectLock.GetRLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectLock.RUnlock()
|
|
|
|
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, apiErr, r.URL)
|
|
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, ErrInvalidRange, r.URL)
|
|
return
|
|
}
|
|
|
|
// log the error.
|
|
errorIf(err, "Invalid request range")
|
|
}
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Get the object.
|
|
var startOffset int64
|
|
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.
|
|
setHeadGetRespHeaders(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.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
}
|
|
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)
|
|
}
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object accessed via a GET request.
|
|
eventNotify(eventData{
|
|
Type: ObjectAccessedGet,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// HeadObjectHandler - HEAD Object
|
|
// -----------
|
|
// The HEAD operation retrieves metadata from an object without returning the object itself.
|
|
func (api objectAPIHandlers) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponseHeadersOnly(w, ErrServerNotInitialized)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:GetObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponseHeadersOnly(w, s3Error)
|
|
return
|
|
}
|
|
|
|
// Lock the object before reading.
|
|
objectLock := globalNSMutex.NewNSLock(bucket, object)
|
|
if objectLock.GetRLock(globalObjectTimeout) != nil {
|
|
writeErrorResponseHeadersOnly(w, ErrOperationTimedOut)
|
|
return
|
|
}
|
|
defer objectLock.RUnlock()
|
|
|
|
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)
|
|
}
|
|
writeErrorResponseHeadersOnly(w, apiErr)
|
|
return
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Set standard object headers.
|
|
setObjectHeaders(w, objInfo, nil)
|
|
|
|
// Set any additional requested response headers.
|
|
setHeadGetRespHeaders(w, r.URL.Query())
|
|
|
|
// Successful response.
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object accessed via a HEAD request.
|
|
eventNotify(eventData{
|
|
Type: ObjectAccessedHead,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// Extract metadata relevant for an CopyObject operation based on conditional
|
|
// header values specified in X-Amz-Metadata-Directive.
|
|
func getCpObjMetadataFromHeader(header http.Header, defaultMeta map[string]string) (map[string]string, error) {
|
|
// Make sure to remove saved etag if any, CopyObject calculates a new one.
|
|
delete(defaultMeta, "etag")
|
|
|
|
// if x-amz-metadata-directive says REPLACE then
|
|
// we extract metadata from the input headers.
|
|
if isMetadataReplace(header) {
|
|
return extractMetadataFromHeader(header)
|
|
}
|
|
|
|
// if x-amz-metadata-directive says COPY then we
|
|
// return the default metadata.
|
|
if isMetadataCopy(header) {
|
|
return defaultMeta, nil
|
|
}
|
|
|
|
// Copy is default behavior if not x-amz-metadata-directive is set.
|
|
return defaultMeta, nil
|
|
}
|
|
|
|
// CopyObjectHandler - Copy Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket
|
|
// while reading the object from another source.
|
|
func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
dstBucket := vars["bucket"]
|
|
dstObject := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, dstBucket, "s3:PutObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// TODO: Reject requests where body/payload is present, for now we don't even read it.
|
|
|
|
// Copy source path.
|
|
cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
|
|
if err != nil {
|
|
// Save unescaped string as is.
|
|
cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
|
|
}
|
|
|
|
srcBucket, srcObject := path2BucketAndObject(cpSrcPath)
|
|
// If source object is empty or bucket is empty, reply back invalid copy source.
|
|
if srcObject == "" || srcBucket == "" {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
// Check if metadata directive is valid.
|
|
if !isMetadataDirectiveValid(r.Header) {
|
|
writeErrorResponse(w, ErrInvalidMetadataDirective, r.URL)
|
|
return
|
|
}
|
|
|
|
cpSrcDstSame := srcBucket == dstBucket && srcObject == dstObject
|
|
// Hold write lock on destination since in both cases
|
|
// - if source and destination are same
|
|
// - if source and destination are different
|
|
// it is the sole mutating state.
|
|
objectDWLock := globalNSMutex.NewNSLock(dstBucket, dstObject)
|
|
if objectDWLock.GetLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectDWLock.Unlock()
|
|
|
|
// if source and destination are different, we have to hold
|
|
// additional read lock as well to protect against writes on
|
|
// source.
|
|
if !cpSrcDstSame {
|
|
// Hold read locks on source object only if we are
|
|
// going to read data from source object.
|
|
objectSRLock := globalNSMutex.NewNSLock(srcBucket, srcObject)
|
|
if objectSRLock.GetRLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectSRLock.RUnlock()
|
|
}
|
|
|
|
objInfo, err := objectAPI.GetObjectInfo(srcBucket, srcObject)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
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, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
newMetadata, err := getCpObjMetadataFromHeader(r.Header, objInfo.UserDefined)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
|
|
// Check if x-amz-metadata-directive was not set to REPLACE and source,
|
|
// desination are same objects.
|
|
if !isMetadataReplace(r.Header) && cpSrcDstSame {
|
|
// If x-amz-metadata-directive is not set to REPLACE then we need
|
|
// to error out if source and destination are same.
|
|
writeErrorResponse(w, ErrInvalidCopyDest, r.URL)
|
|
return
|
|
}
|
|
|
|
// Copy source object to destination, if source and destination
|
|
// object is same then only metadata is updated.
|
|
objInfo, err = objectAPI.CopyObject(srcBucket, srcObject, dstBucket, dstObject, newMetadata)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
response := generateCopyObjectResponse(objInfo.ETag, objInfo.ModTime)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCopy,
|
|
Bucket: dstBucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// PutObjectHandler - PUT Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket.
|
|
func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
// 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, ErrInvalidDigest, r.URL)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, deny the request
|
|
size := r.ContentLength
|
|
rAuthType := getRequestAuthType(r)
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse `x-amz-decoded-content-length` into its integer value", sizeStr)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract metadata to be saved from incoming HTTP header.
|
|
metadata, err := extractMetadataFromHeader(r.Header)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
if rAuthType == authTypeStreamingSigned {
|
|
if contentEncoding, ok := metadata["content-encoding"]; ok {
|
|
contentEncoding = trimAwsChunkedContentEncoding(contentEncoding)
|
|
if contentEncoding != "" {
|
|
// Make sure to trim and save the content-encoding
|
|
// parameter for a streaming signature which is set
|
|
// to a custom value for example: "aws-chunked,gzip".
|
|
metadata["content-encoding"] = contentEncoding
|
|
} else {
|
|
// Trimmed content encoding is empty when the header
|
|
// value is set to "aws-chunked" only.
|
|
|
|
// Make sure to delete the content-encoding parameter
|
|
// for a streaming signature which is set to value
|
|
// for example: "aws-chunked"
|
|
delete(metadata, "content-encoding")
|
|
}
|
|
}
|
|
}
|
|
|
|
// Lock the object.
|
|
objectLock := globalNSMutex.NewNSLock(bucket, object)
|
|
if objectLock.GetLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectLock.Unlock()
|
|
|
|
var (
|
|
md5hex = hex.EncodeToString(md5Bytes)
|
|
sha256hex = ""
|
|
reader = r.Body
|
|
)
|
|
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/using-with-s3-actions.html
|
|
sourceIP := getSourceIPAddress(r)
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path,
|
|
r.Referer(), sourceIP, r.URL.Query()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
var s3Error APIErrorCode
|
|
reader, s3Error = newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := reqSignatureV4Verify(r, serverConfig.GetRegion()); s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256hex = r.Header.Get("X-Amz-Content-Sha256")
|
|
}
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex)
|
|
if err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Create the object..
|
|
objInfo, err := objectAPI.PutObject(bucket, object, hashReader, metadata)
|
|
if err != nil {
|
|
errorIf(err, "Unable to create an object. %s", r.URL.Path)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
|
writeSuccessResponseHeadersOnly(w)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedPut,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
/// Multipart objectAPIHandlers
|
|
|
|
// NewMultipartUploadHandler - New multipart upload.
|
|
func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := mux.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:PutObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract metadata that needs to be saved.
|
|
metadata, err := extractMetadataFromHeader(r.Header)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, err := objectAPI.NewMultipartUpload(bucket, object, metadata)
|
|
if err != nil {
|
|
errorIf(err, "Unable to initiate new multipart upload id.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CopyObjectPartHandler - uploads a part by copying data from an existing object as data source.
|
|
func (api objectAPIHandlers) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
dstBucket := vars["bucket"]
|
|
dstObject := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, dstBucket, "s3:PutObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Copy source path.
|
|
cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
|
|
if err != nil {
|
|
// Save unescaped string as is.
|
|
cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
|
|
}
|
|
|
|
srcBucket, srcObject := path2BucketAndObject(cpSrcPath)
|
|
// If source object is empty or bucket is empty, reply back invalid copy source.
|
|
if srcObject == "" || srcBucket == "" {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidPart, r.URL)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
|
|
// Hold read locks on source object only if we are
|
|
// going to read data from source object.
|
|
objectSRLock := globalNSMutex.NewNSLock(srcBucket, srcObject)
|
|
if objectSRLock.GetRLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectSRLock.RUnlock()
|
|
|
|
objInfo, err := objectAPI.GetObjectInfo(srcBucket, srcObject)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Get request range.
|
|
var hrange *httpRange
|
|
rangeHeader := r.Header.Get("x-amz-copy-source-range")
|
|
if rangeHeader != "" {
|
|
if hrange, err = parseCopyPartRange(rangeHeader, objInfo.Size); err != nil {
|
|
// Handle only errInvalidRange
|
|
// Ignore other parse error and treat it as regular Get request like Amazon S3.
|
|
errorIf(err, "Unable to extract range %s", rangeHeader)
|
|
writeCopyPartErr(w, err, r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Verify before x-amz-copy-source preconditions before continuing with CopyObject.
|
|
if checkCopyObjectPartPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Get the object.
|
|
var startOffset int64
|
|
length := objInfo.Size
|
|
if hrange != nil {
|
|
length = hrange.getLength()
|
|
startOffset = hrange.offsetBegin
|
|
}
|
|
|
|
/// maximum copy size for multipart objects in a single operation
|
|
if isMaxAllowedPartSize(length) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Copy source object to destination, if source and destination
|
|
// object is same then only metadata is updated.
|
|
partInfo, err := objectAPI.CopyObjectPart(srcBucket, srcObject, dstBucket, dstObject, uploadID, partID, startOffset, length)
|
|
if err != nil {
|
|
errorIf(err, "Unable to perform CopyObjectPart %s/%s", srcBucket, srcObject)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// PutObjectPartHandler - uploads an incoming part for an ongoing multipart operation.
|
|
func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
// get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidDigest, r.URL)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, throw away
|
|
size := r.ContentLength
|
|
|
|
rAuthType := getRequestAuthType(r)
|
|
// For auth type streaming signature, we need to gather a different content length.
|
|
if rAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse `x-amz-decoded-content-length` into its integer value", sizeStr)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for multipart objects in a single operation
|
|
if isMaxAllowedPartSize(size) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID := r.URL.Query().Get("uploadId")
|
|
partIDString := r.URL.Query().Get("partNumber")
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(w, ErrInvalidPart, r.URL)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
|
|
var (
|
|
md5hex = hex.EncodeToString(md5Bytes)
|
|
sha256hex = ""
|
|
reader = r.Body
|
|
)
|
|
|
|
switch rAuthType {
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
case authTypeAnonymous:
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
|
|
if s3Error := enforceBucketPolicy(bucket, "s3:PutObject", r.URL.Path,
|
|
r.Referer(), getSourceIPAddress(r), r.URL.Query()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
var s3Error APIErrorCode
|
|
reader, s3Error = newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := reqSignatureV4Verify(r, serverConfig.GetRegion()); s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256hex = r.Header.Get("X-Amz-Content-Sha256")
|
|
}
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex)
|
|
if err != nil {
|
|
errorIf(err, "Unable to create object part.")
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
partInfo, err := objectAPI.PutObjectPart(bucket, object, uploadID, partID, hashReader)
|
|
if err != nil {
|
|
errorIf(err, "Unable to create object part.")
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
if partInfo.ETag != "" {
|
|
w.Header().Set("ETag", "\""+partInfo.ETag+"\"")
|
|
}
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectAPIHandlers) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:AbortMultipartUpload", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
if err := objectAPI.AbortMultipartUpload(bucket, object, uploadID); err != nil {
|
|
errorIf(err, "Unable to abort multipart upload.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:ListMultipartUploadParts", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
|
|
if partNumberMarker < 0 {
|
|
writeErrorResponse(w, ErrInvalidPartNumberMarker, r.URL)
|
|
return
|
|
}
|
|
if maxParts < 0 {
|
|
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
|
|
return
|
|
}
|
|
listPartsInfo, err := objectAPI.ListObjectParts(bucket, object, uploadID, partNumberMarker, maxParts)
|
|
if err != nil {
|
|
errorIf(err, "Unable to list uploaded parts.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
response := generateListPartsResponse(listPartsInfo)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// CompleteMultipartUploadHandler - Complete multipart upload.
|
|
func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:PutObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// Get upload id.
|
|
uploadID, _, _, _ := getObjectResources(r.URL.Query())
|
|
|
|
completeMultipartBytes, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
complMultipartUpload := &completeMultipartUpload{}
|
|
if err = xml.Unmarshal(completeMultipartBytes, complMultipartUpload); err != nil {
|
|
errorIf(err, "Unable to parse complete multipart upload XML.")
|
|
writeErrorResponse(w, ErrMalformedXML, r.URL)
|
|
return
|
|
}
|
|
if len(complMultipartUpload.Parts) == 0 {
|
|
writeErrorResponse(w, ErrMalformedXML, r.URL)
|
|
return
|
|
}
|
|
if !sort.IsSorted(completedParts(complMultipartUpload.Parts)) {
|
|
writeErrorResponse(w, ErrInvalidPartOrder, r.URL)
|
|
return
|
|
}
|
|
|
|
// Complete parts.
|
|
var completeParts []completePart
|
|
for _, part := range complMultipartUpload.Parts {
|
|
part.ETag = canonicalizeETag(part.ETag)
|
|
completeParts = append(completeParts, part)
|
|
}
|
|
|
|
// Hold write lock on the object.
|
|
destLock := globalNSMutex.NewNSLock(bucket, object)
|
|
if destLock.GetLock(globalObjectTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer destLock.Unlock()
|
|
|
|
objInfo, err := objectAPI.CompleteMultipartUpload(bucket, object, uploadID, completeParts)
|
|
if err != nil {
|
|
errorIf(err, "Unable to complete multipart upload.")
|
|
err = errorCause(err)
|
|
switch oErr := err.(type) {
|
|
case PartTooSmall:
|
|
// Write part too small error.
|
|
writePartSmallErrorResponse(w, r, oErr)
|
|
default:
|
|
// Handle all other generic issues.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Get object location.
|
|
location := getLocation(r)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, objInfo.ETag)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse CompleteMultipartUpload response")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
|
|
// Set etag.
|
|
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedCompleteMultipartUpload,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
/// Delete objectAPIHandlers
|
|
|
|
// DeleteObjectHandler - delete an object
|
|
func (api objectAPIHandlers) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, bucket, "s3:DeleteObject", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectDELETE.html
|
|
// Ignore delete object errors while replying to client, since we are
|
|
// suppposed to reply only 204. Additionally log the error for
|
|
// investigation.
|
|
if err := deleteObject(objectAPI, bucket, object, r); err != nil {
|
|
errorIf(err, "Unable to delete an object %s", pathJoin(bucket, object))
|
|
}
|
|
writeSuccessNoContent(w)
|
|
}
|