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minio/object-handlers.go

880 lines
28 KiB

/*
* 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 implieapi.Filesystem.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"io"
"net/http"
"net/url"
"strconv"
"strings"
"time"
mux "github.com/gorilla/mux"
"github.com/minio/minio/pkg/fs"
"github.com/minio/minio/pkg/probe"
)
const (
maxPartsList = 1000
)
// 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-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
}
}
}
// GetObjectHandler - GET Object
// ----------
// This implementation of the GET operation retrieves object. To use GET,
// you must have READ access to the object.
func (api storageAPI) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
var object, bucket string
vars := mux.Vars(r)
bucket = vars["bucket"]
object = vars["object"]
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("s3:GetObject", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
case authTypePresigned, authTypeSigned:
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
}
metadata, err := api.Filesystem.GetObjectMetadata(bucket, object)
if err != nil {
errorIf(err.Trace(), "GetObject failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
var hrange *httpRange
hrange, err = getRequestedRange(r.Header.Get("Range"), metadata.Size)
if err != nil {
writeErrorResponse(w, r, ErrInvalidRange, r.URL.Path)
return
}
// Set standard object headers.
setObjectHeaders(w, metadata, hrange)
// Verify 'If-Modified-Since' and 'If-Unmodified-Since'.
if checkLastModified(w, r, metadata.LastModified) {
return
}
// Verify 'If-Match' and 'If-None-Match'.
if checkETag(w, r) {
return
}
// Set any additional requested response headers.
setGetRespHeaders(w, r.URL.Query())
// Get the object.
if _, err = api.Filesystem.GetObject(w, bucket, object, hrange.start, hrange.length); err != nil {
errorIf(err.Trace(), "GetObject failed.", nil)
return
}
}
var unixEpochTime = time.Unix(0, 0)
// checkLastModified implements If-Modified-Since and
// If-Unmodified-Since checks.
//
// modtime is the modification time of the resource to be served, or
// IsZero(). return value is whether this request is now complete.
func checkLastModified(w http.ResponseWriter, r *http.Request, modtime time.Time) bool {
if modtime.IsZero() || modtime.Equal(unixEpochTime) {
// If the object doesn't have a modtime (IsZero), or the modtime
// is obviously garbage (Unix time == 0), then ignore modtimes
// and don't process the If-Modified-Since header.
return false
}
// The Date-Modified header truncates sub-second precision, so
// use mtime < t+1s instead of mtime <= t to check for unmodified.
if _, ok := r.Header["If-Modified-Since"]; ok {
// Return the object only if it has been modified since the
// specified time, otherwise return a 304 (not modified).
t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since"))
if err == nil && modtime.Before(t.Add(1*time.Second)) {
h := w.Header()
// Remove following headers if already set.
delete(h, "Content-Type")
delete(h, "Content-Length")
delete(h, "Content-Range")
w.WriteHeader(http.StatusNotModified)
return true
}
} else if _, ok := r.Header["If-Unmodified-Since"]; ok {
// Return the object only if it has not been modified since
// the specified time, otherwise return a 412 (precondition failed).
t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Unmodified-Since"))
if err == nil && modtime.After(t.Add(1*time.Second)) {
h := w.Header()
// Remove following headers if already set.
delete(h, "Content-Type")
delete(h, "Content-Length")
delete(h, "Content-Range")
w.WriteHeader(http.StatusPreconditionFailed)
return true
}
}
w.Header().Set("Last-Modified", modtime.UTC().Format(http.TimeFormat))
return false
}
// checkETag implements If-None-Match and If-Match checks.
//
// The ETag or modtime must have been previously set in the
// ResponseWriter's headers. The modtime is only compared at second
// granularity and may be the zero value to mean unknown.
//
// The return value is whether this request is now considered done.
func checkETag(w http.ResponseWriter, r *http.Request) bool {
etag := w.Header().Get("ETag")
// Must know ETag.
if etag == "" {
return false
}
if inm := r.Header.Get("If-None-Match"); inm != "" {
// Return the object only if its entity tag (ETag) is
// different from the one specified; otherwise, return a 304
// (not modified).
if r.Method != "GET" && r.Method != "HEAD" {
return false
}
if inm == etag || inm == "*" {
h := w.Header()
// Remove following headers if already set.
delete(h, "Content-Type")
delete(h, "Content-Length")
delete(h, "Content-Range")
w.WriteHeader(http.StatusNotModified)
return true
}
} else if im := r.Header.Get("If-Match"); im != "" {
// Return the object only if its entity tag (ETag) is the same
// as the one specified; otherwise, return a 412 (precondition failed).
if r.Method != "GET" && r.Method != "HEAD" {
return false
}
if im != etag {
h := w.Header()
// Remove following headers if already set.
delete(h, "Content-Type")
delete(h, "Content-Length")
delete(h, "Content-Range")
w.WriteHeader(http.StatusPreconditionFailed)
return true
}
}
return false
}
// HeadObjectHandler - HEAD Object
// -----------
// The HEAD operation retrieves metadata from an object without returning the object itself.
func (api storageAPI) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
var object, bucket string
vars := mux.Vars(r)
bucket = vars["bucket"]
object = vars["object"]
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
metadata, err := api.Filesystem.GetObjectMetadata(bucket, object)
if err != nil {
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
// Set standard object headers.
setObjectHeaders(w, metadata, nil)
// Verify 'If-Modified-Since' and 'If-Unmodified-Since'.
if checkLastModified(w, r, metadata.LastModified) {
return
}
// Verify 'If-Match' and 'If-None-Match'.
if checkETag(w, r) {
return
}
// Successfull 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.
//
// TODO: Does not support following request headers just yet.
// - x-amz-copy-source-if-match
// - x-amz-copy-source-if-none-match
// - x-amz-copy-source-if-unmodified-since
// - x-amz-copy-source-if-modified-since
func (api storageAPI) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
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("s3:GetBucketLocation", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
case authTypePresigned, authTypeSigned:
if s3Error := isReqAuthenticated(api.Signature, 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 := r.Header.Get("X-Amz-Copy-Source")
// Skip the first element if it is '/', split the rest.
if strings.HasPrefix(objectSource, "/") {
objectSource = objectSource[1:]
}
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
}
metadata, err := api.Filesystem.GetObjectMetadata(sourceBucket, sourceObject)
if err != nil {
errorIf(err.Trace(), "GetObjectMetadata failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, objectSource)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, objectSource)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, objectSource)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, objectSource)
default:
writeErrorResponse(w, r, ErrInternalError, objectSource)
}
return
}
/// maximum Upload size for object in a single CopyObject operation.
if isMaxObjectSize(metadata.Size) {
writeErrorResponse(w, r, ErrEntityTooLarge, objectSource)
return
}
// Initialize a pipe for data pipe line.
reader, writer := io.Pipe()
// Start writing in a routine.
go func() {
defer writer.Close()
if _, getErr := api.Filesystem.GetObject(writer, sourceBucket, sourceObject, 0, 0); getErr != nil {
writer.CloseWithError(probe.WrapError(getErr))
return
}
}()
// Verify md5sum.
expectedMD5Sum := metadata.MD5
// Size of object.
size := metadata.Size
// Create the object.
metadata, err = api.Filesystem.CreateObject(bucket, object, expectedMD5Sum, size, reader, nil)
if err != nil {
errorIf(err.Trace(), "CreateObject failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BadDigest:
writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
case fs.InvalidDigest:
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
case fs.ObjectExistsAsPrefix:
writeErrorResponse(w, r, ErrObjectExistsAsPrefix, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
response := generateCopyObjectResponse(metadata.MD5, metadata.LastModified)
encodedSuccessResponse := encodeResponse(response)
// write headers
setCommonHeaders(w)
// write success response.
writeSuccessResponse(w, encodedSuccessResponse)
}
// PutObjectHandler - PUT Object
// ----------
// This implementation of the PUT operation adds an object to a bucket.
func (api storageAPI) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
// 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
md5 := r.Header.Get("Content-Md5")
if !isValidMD5(md5) {
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
return
}
/// if Content-Length is unknown/missing, deny the request
size := r.ContentLength
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
}
// Set http request for signature.
auth := api.Signature.SetHTTPRequestToVerify(r)
var metadata fs.ObjectMetadata
var err *probe.Error
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("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
// Create anonymous object.
metadata, err = api.Filesystem.CreateObject(bucket, object, md5, size, r.Body, nil)
case authTypePresigned:
// For presigned requests verify them right here.
var ok bool
ok, err = auth.DoesPresignedSignatureMatch()
if err != nil {
errorIf(err.Trace(r.URL.String()), "Presigned signature verification failed.", nil)
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
if !ok {
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
// Create presigned object.
metadata, err = api.Filesystem.CreateObject(bucket, object, md5, size, r.Body, nil)
case authTypeSigned:
// Create object.
metadata, err = api.Filesystem.CreateObject(bucket, object, md5, size, r.Body, &auth)
}
if err != nil {
errorIf(err.Trace(), "CreateObject failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BadDigest:
writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
case fs.SignDoesNotMatch:
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
case fs.InvalidDigest:
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
case fs.ObjectExistsAsPrefix:
writeErrorResponse(w, r, ErrObjectExistsAsPrefix, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
if metadata.MD5 != "" {
w.Header().Set("ETag", "\""+metadata.MD5+"\"")
}
writeSuccessResponse(w, nil)
}
/// Multipart storageAPI
// NewMultipartUploadHandler - New multipart upload
func (api storageAPI) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
var object, bucket string
vars := mux.Vars(r)
bucket = vars["bucket"]
object = vars["object"]
switch getRequestAuthType(r) {
case authTypeAnonymous:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
default:
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
}
uploadID, err := api.Filesystem.NewMultipartUpload(bucket, object)
if err != nil {
errorIf(err.Trace(), "NewMultipartUpload failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, 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 storageAPI) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
// get Content-Md5 sent by client and verify if valid
md5 := r.Header.Get("Content-Md5")
if !isValidMD5(md5) {
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
return
}
/// if Content-Length is unknown/missing, throw away
size := r.ContentLength
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, e := strconv.Atoi(partIDString)
if e != nil {
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
return
}
// Set http request for signature.
auth := api.Signature.SetHTTPRequestToVerify(r)
var partMD5 string
var err *probe.Error
switch getRequestAuthType(r) {
case authTypeAnonymous:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
if s3Error := enforceBucketPolicy("s3:PutObject", bucket, 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 = api.Filesystem.CreateObjectPart(bucket, object, uploadID, md5, partID, size, r.Body, nil)
case authTypePresigned:
// For presigned requests verify right here.
var ok bool
ok, err = auth.DoesPresignedSignatureMatch()
if err != nil {
errorIf(err.Trace(r.URL.String()), "Presigned signature verification failed.", nil)
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
if !ok {
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
partMD5, err = api.Filesystem.CreateObjectPart(bucket, object, uploadID, md5, partID, size, r.Body, nil)
default:
partMD5, err = api.Filesystem.CreateObjectPart(bucket, object, uploadID, md5, partID, size, r.Body, &auth)
}
if err != nil {
errorIf(err.Trace(), "CreateObjectPart failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, r, ErrRootPathFull, r.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
case fs.BadDigest:
writeErrorResponse(w, r, ErrBadDigest, r.URL.Path)
case fs.SignDoesNotMatch:
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
case fs.InvalidDigest:
writeErrorResponse(w, r, ErrInvalidDigest, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
if partMD5 != "" {
w.Header().Set("ETag", "\""+partMD5+"\"")
}
writeSuccessResponse(w, nil)
}
// AbortMultipartUploadHandler - Abort multipart upload
func (api storageAPI) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
switch getRequestAuthType(r) {
case authTypeAnonymous:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
if s3Error := enforceBucketPolicy("s3:AbortMultipartUpload", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
default:
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
}
objectResourcesMetadata := getObjectResources(r.URL.Query())
err := api.Filesystem.AbortMultipartUpload(bucket, object, objectResourcesMetadata.UploadID)
if err != nil {
errorIf(err.Trace(), "AbortMutlipartUpload failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
writeSuccessNoContent(w)
}
// ListObjectPartsHandler - List object parts
func (api storageAPI) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
switch getRequestAuthType(r) {
case authTypeAnonymous:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/mpuAndPermissions.html
if s3Error := enforceBucketPolicy("s3:ListMultipartUploadParts", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
default:
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
}
objectResourcesMetadata := getObjectResources(r.URL.Query())
if objectResourcesMetadata.PartNumberMarker < 0 {
writeErrorResponse(w, r, ErrInvalidPartNumberMarker, r.URL.Path)
return
}
if objectResourcesMetadata.MaxParts < 0 {
writeErrorResponse(w, r, ErrInvalidMaxParts, r.URL.Path)
return
}
if objectResourcesMetadata.MaxParts == 0 {
objectResourcesMetadata.MaxParts = maxPartsList
}
objectResourcesMetadata, err := api.Filesystem.ListObjectParts(bucket, object, objectResourcesMetadata)
if err != nil {
errorIf(err.Trace(), "ListObjectParts failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
response := generateListPartsResponse(objectResourcesMetadata)
encodedSuccessResponse := encodeResponse(response)
// Write headers.
setCommonHeaders(w)
// Write success response.
writeSuccessResponse(w, encodedSuccessResponse)
}
// CompleteMultipartUploadHandler - Complete multipart upload
func (api storageAPI) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
// Extract object resources.
objectResourcesMetadata := getObjectResources(r.URL.Query())
// Set http request for signature.
auth := api.Signature.SetHTTPRequestToVerify(r)
var metadata fs.ObjectMetadata
var err *probe.Error
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("s3:PutObject", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
// Complete multipart upload anonymous.
metadata, err = api.Filesystem.CompleteMultipartUpload(bucket, object, objectResourcesMetadata.UploadID, r.Body, nil)
case authTypePresigned:
// For presigned requests verify right here.
var ok bool
ok, err = auth.DoesPresignedSignatureMatch()
if err != nil {
errorIf(err.Trace(r.URL.String()), "Presigned signature verification failed.", nil)
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
if !ok {
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
return
}
// Complete multipart upload presigned.
metadata, err = api.Filesystem.CompleteMultipartUpload(bucket, object, objectResourcesMetadata.UploadID, r.Body, nil)
case authTypeSigned:
// Complete multipart upload.
metadata, err = api.Filesystem.CompleteMultipartUpload(bucket, object, objectResourcesMetadata.UploadID, r.Body, &auth)
}
if err != nil {
errorIf(err.Trace(), "CompleteMultipartUpload failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, r, ErrNoSuchUpload, r.URL.Path)
case fs.InvalidPart:
writeErrorResponse(w, r, ErrInvalidPart, r.URL.Path)
case fs.InvalidPartOrder:
writeErrorResponse(w, r, ErrInvalidPartOrder, r.URL.Path)
case fs.SignDoesNotMatch:
writeErrorResponse(w, r, ErrSignatureDoesNotMatch, r.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, r, ErrIncompleteBody, r.URL.Path)
case fs.MalformedXML:
writeErrorResponse(w, r, ErrMalformedXML, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
return
}
// get object location.
location := getLocation(r)
// Generate complete multipart response.
response := generateCompleteMultpartUploadResponse(bucket, object, location, metadata.MD5)
encodedSuccessResponse := encodeResponse(response)
// write headers
setCommonHeaders(w)
// write success response.
writeSuccessResponse(w, encodedSuccessResponse)
}
/// Delete storageAPI
// DeleteObjectHandler - delete an object
func (api storageAPI) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
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("s3:DeleteObject", bucket, r.URL); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
case authTypeSigned, authTypePresigned:
if s3Error := isReqAuthenticated(api.Signature, r); s3Error != ErrNone {
writeErrorResponse(w, r, s3Error, r.URL.Path)
return
}
}
err := api.Filesystem.DeleteObject(bucket, object)
if err != nil {
errorIf(err.Trace(), "DeleteObject failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, r, ErrInvalidBucketName, r.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, r, ErrNoSuchBucket, r.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, r, ErrNoSuchKey, r.URL.Path)
default:
writeErrorResponse(w, r, ErrInternalError, r.URL.Path)
}
}
writeSuccessNoContent(w)
}