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Copy pathobject-handlers.go
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539 lines (494 loc) · 16.1 KB
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/*
* 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 (
"net/http"
"strconv"
"github.com/gorilla/mux"
"github.com/minio/minio-xl/pkg/probe"
"github.com/minio/minio/pkg/fs"
)
const (
maxPartsList = 1000
)
// GetObjectHandler - GET Object
// ----------
// This implementation of the GET operation retrieves object. To use GET,
// you must have READ access to the object.
func (api CloudStorageAPI) GetObjectHandler(w http.ResponseWriter, req *http.Request) {
var object, bucket string
vars := mux.Vars(req)
bucket = vars["bucket"]
object = vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
if api.Filesystem.IsPrivateBucket(bucket) {
writeErrorResponse(w, req, AccessDenied, req.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, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
var hrange *httpRange
hrange, err = getRequestedRange(req.Header.Get("Range"), metadata.Size)
if err != nil {
writeErrorResponse(w, req, InvalidRange, req.URL.Path)
return
}
setObjectHeaders(w, metadata, hrange)
if _, err = api.Filesystem.GetObject(w, bucket, object, hrange.start, hrange.length); err != nil {
errorIf(err.Trace(), "GetObject failed.", nil)
return
}
}
// HeadObjectHandler - HEAD Object
// -----------
// The HEAD operation retrieves metadata from an object without returning the object itself.
func (api CloudStorageAPI) HeadObjectHandler(w http.ResponseWriter, req *http.Request) {
var object, bucket string
vars := mux.Vars(req)
bucket = vars["bucket"]
object = vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
if api.Filesystem.IsPrivateBucket(bucket) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
}
metadata, err := api.Filesystem.GetObjectMetadata(bucket, object)
if err != nil {
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
setObjectHeaders(w, metadata, nil)
w.WriteHeader(http.StatusOK)
}
// PutObjectHandler - PUT Object
// ----------
// This implementation of the PUT operation adds an object to a bucket.
func (api CloudStorageAPI) PutObjectHandler(w http.ResponseWriter, req *http.Request) {
var object, bucket string
vars := mux.Vars(req)
bucket = vars["bucket"]
object = vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
if api.Filesystem.IsPrivateBucket(bucket) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
}
// get Content-MD5 sent by client and verify if valid
md5 := req.Header.Get("Content-MD5")
if !isValidMD5(md5) {
writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
return
}
/// if Content-Length missing, deny the request
size := req.Header.Get("Content-Length")
if size == "" {
writeErrorResponse(w, req, MissingContentLength, req.URL.Path)
return
}
/// maximum Upload size for objects in a single operation
if isMaxObjectSize(size) {
writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
return
}
var sizeInt64 int64
{
var err error
sizeInt64, err = strconv.ParseInt(size, 10, 64)
if err != nil {
writeErrorResponse(w, req, InvalidRequest, req.URL.Path)
return
}
}
var signature *fs.Signature
if !api.Anonymous {
if isRequestSignatureV4(req) {
// Init signature V4 verification
var err *probe.Error
signature, err = initSignatureV4(req)
if err != nil {
errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
writeErrorResponse(w, req, InternalError, req.URL.Path)
return
}
}
}
metadata, err := api.Filesystem.CreateObject(bucket, object, md5, sizeInt64, req.Body, signature)
if err != nil {
errorIf(err.Trace(), "CreateObject failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, req, RootPathFull, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.BucketNameInvalid:
writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
case fs.BadDigest:
writeErrorResponse(w, req, BadDigest, req.URL.Path)
case fs.MissingDateHeader:
writeErrorResponse(w, req, RequestTimeTooSkewed, req.URL.Path)
case fs.SignatureDoesNotMatch:
writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
case fs.EntityTooLarge:
writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
case fs.InvalidDigest:
writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
w.Header().Set("ETag", "\""+metadata.Md5+"\"")
writeSuccessResponse(w)
}
/// Multipart CloudStorageAPI
// NewMultipartUploadHandler - New multipart upload
func (api CloudStorageAPI) NewMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
var object, bucket string
vars := mux.Vars(req)
bucket = vars["bucket"]
object = vars["object"]
if !api.Anonymous {
// Unauthorized multipart uploads are not supported
if isRequestRequiresACLCheck(req) {
writeErrorResponse(w, req, AccessDenied, req.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, req, RootPathFull, req.URL.Path)
case fs.BucketNameInvalid:
writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
encodedSuccessResponse := encodeSuccessResponse(response)
// write headers
setCommonHeaders(w, len(encodedSuccessResponse))
// write body
w.Write(encodedSuccessResponse)
}
// PutObjectPartHandler - Upload part
func (api CloudStorageAPI) PutObjectPartHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
/// if Content-Length missing, throw away
size := req.Header.Get("Content-Length")
if size == "" {
writeErrorResponse(w, req, MissingContentLength, req.URL.Path)
return
}
// get Content-MD5 sent by client and verify if valid
md5 := req.Header.Get("Content-MD5")
if !isValidMD5(md5) {
writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
return
}
/// maximum Upload size for multipart objects in a single operation
if isMaxObjectSize(size) {
writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
return
}
var sizeInt64 int64
{
var err error
sizeInt64, err = strconv.ParseInt(size, 10, 64)
if err != nil {
writeErrorResponse(w, req, InvalidRequest, req.URL.Path)
return
}
}
uploadID := req.URL.Query().Get("uploadId")
partIDString := req.URL.Query().Get("partNumber")
var partID int
{
var err error
partID, err = strconv.Atoi(partIDString)
if err != nil {
writeErrorResponse(w, req, InvalidPart, req.URL.Path)
return
}
}
var signature *fs.Signature
if !api.Anonymous {
if isRequestSignatureV4(req) {
// Init signature V4 verification
var err *probe.Error
signature, err = initSignatureV4(req)
if err != nil {
errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
writeErrorResponse(w, req, InternalError, req.URL.Path)
return
}
}
}
calculatedMD5, err := api.Filesystem.CreateObjectPart(bucket, object, uploadID, md5, partID, sizeInt64, req.Body, signature)
if err != nil {
errorIf(err.Trace(), "CreateObjectPart failed.", nil)
switch err.ToGoError().(type) {
case fs.RootPathFull:
writeErrorResponse(w, req, RootPathFull, req.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
case fs.BadDigest:
writeErrorResponse(w, req, BadDigest, req.URL.Path)
case fs.SignatureDoesNotMatch:
writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
case fs.EntityTooLarge:
writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
case fs.InvalidDigest:
writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
w.Header().Set("ETag", "\""+calculatedMD5+"\"")
writeSuccessResponse(w)
}
// AbortMultipartUploadHandler - Abort multipart upload
func (api CloudStorageAPI) AbortMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
objectResourcesMetadata := getObjectResources(req.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, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
writeSuccessNoContent(w)
}
// ListObjectPartsHandler - List object parts
func (api CloudStorageAPI) ListObjectPartsHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
objectResourcesMetadata := getObjectResources(req.URL.Query())
if objectResourcesMetadata.PartNumberMarker < 0 {
writeErrorResponse(w, req, InvalidPartNumberMarker, req.URL.Path)
return
}
if objectResourcesMetadata.MaxParts < 0 {
writeErrorResponse(w, req, InvalidMaxParts, req.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, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
response := generateListPartsResponse(objectResourcesMetadata)
encodedSuccessResponse := encodeSuccessResponse(response)
// write headers
setCommonHeaders(w, len(encodedSuccessResponse))
// write body
w.Write(encodedSuccessResponse)
}
// CompleteMultipartUploadHandler - Complete multipart upload
func (api CloudStorageAPI) CompleteMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
writeErrorResponse(w, req, AccessDenied, req.URL.Path)
return
}
}
objectResourcesMetadata := getObjectResources(req.URL.Query())
var signature *fs.Signature
if !api.Anonymous {
if isRequestSignatureV4(req) {
// Init signature V4 verification
var err *probe.Error
signature, err = initSignatureV4(req)
if err != nil {
errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
writeErrorResponse(w, req, InternalError, req.URL.Path)
return
}
}
}
metadata, err := api.Filesystem.CompleteMultipartUpload(bucket, object, objectResourcesMetadata.UploadID, req.Body, signature)
if err != nil {
errorIf(err.Trace(), "CompleteMultipartUpload failed.", nil)
switch err.ToGoError().(type) {
case fs.BucketNameInvalid:
writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.InvalidUploadID:
writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
case fs.InvalidPart:
writeErrorResponse(w, req, InvalidPart, req.URL.Path)
case fs.InvalidPartOrder:
writeErrorResponse(w, req, InvalidPartOrder, req.URL.Path)
case fs.SignatureDoesNotMatch:
writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
case fs.IncompleteBody:
writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
case fs.MalformedXML:
writeErrorResponse(w, req, MalformedXML, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
return
}
response := generateCompleteMultpartUploadResponse(bucket, object, "", metadata.Md5)
encodedSuccessResponse := encodeSuccessResponse(response)
// write headers
setCommonHeaders(w, len(encodedSuccessResponse))
// write body
w.Write(encodedSuccessResponse)
}
/// Delete CloudStorageAPI
// DeleteObjectHandler - Delete object
func (api CloudStorageAPI) DeleteObjectHandler(w http.ResponseWriter, req *http.Request) {
vars := mux.Vars(req)
bucket := vars["bucket"]
object := vars["object"]
if !api.Anonymous {
if isRequestRequiresACLCheck(req) {
if api.Filesystem.IsPrivateBucket(bucket) {
writeErrorResponse(w, req, AccessDenied, req.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, req, InvalidBucketName, req.URL.Path)
case fs.BucketNotFound:
writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
case fs.ObjectNotFound:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
case fs.ObjectNameInvalid:
writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
default:
writeErrorResponse(w, req, InternalError, req.URL.Path)
}
}
writeSuccessNoContent(w)
}