minio/object-handlers.go
Harshavardhana 0aedb67de0 contentType: Reply back proper contentTypes based on the file extension.
Currently the server would set 'application/octet-stream' for all
objects, set this value based on the file extension transparently.

This is useful in case of minio browser to facilitate displaying
proper icons for the different mime data types.
2016-02-01 12:19:58 -08:00

558 lines
17 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 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) || api.Filesystem.IsReadOnlyBucket(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 is unknown/missing, deny the request
size := req.ContentLength
if size == -1 {
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 signature *fs.Signature
if !api.Anonymous {
if isRequestSignatureV4(req) {
// Init signature V4 verification
var err *probe.Error
signature, err = initSignatureV4(req)
if err != nil {
switch err.ToGoError() {
case errInvalidRegion:
errorIf(err.Trace(), "Unknown region in authorization header.", nil)
writeErrorResponse(w, req, AuthorizationHeaderMalformed, req.URL.Path)
return
case errAccessKeyIDInvalid:
errorIf(err.Trace(), "Invalid access key id.", nil)
writeErrorResponse(w, req, InvalidAccessKeyID, req.URL.Path)
return
default:
errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
writeErrorResponse(w, req, InternalError, req.URL.Path)
return
}
}
}
}
metadata, err := api.Filesystem.CreateObject(bucket, object, md5, size, 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
}
if metadata.Md5 != "" {
w.Header().Set("ETag", "\""+metadata.Md5+"\"")
}
writeSuccessResponse(w, nil)
}
/// 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)
// write success response.
writeSuccessResponse(w, 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
}
}
// 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 is unknown/missing, throw away
size := req.ContentLength
if size == -1 {
writeErrorResponse(w, req, MissingContentLength, 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
}
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 {
switch err.ToGoError() {
case errInvalidRegion:
errorIf(err.Trace(), "Unknown region in authorization header.", nil)
writeErrorResponse(w, req, AuthorizationHeaderMalformed, req.URL.Path)
return
case errAccessKeyIDInvalid:
errorIf(err.Trace(), "Invalid access key id.", nil)
writeErrorResponse(w, req, InvalidAccessKeyID, req.URL.Path)
return
default:
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, size, 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
}
if calculatedMD5 != "" {
w.Header().Set("ETag", "\""+calculatedMD5+"\"")
}
writeSuccessResponse(w, nil)
}
// 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)
// write success response.
writeSuccessResponse(w, 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 {
switch err.ToGoError() {
case errInvalidRegion:
errorIf(err.Trace(), "Unknown region in authorization header.", nil)
writeErrorResponse(w, req, AuthorizationHeaderMalformed, req.URL.Path)
return
case errAccessKeyIDInvalid:
errorIf(err.Trace(), "Invalid access key id.", nil)
writeErrorResponse(w, req, InvalidAccessKeyID, req.URL.Path)
return
default:
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, req.URL.String(), metadata.Md5)
encodedSuccessResponse := encodeSuccessResponse(response)
// write headers
setCommonHeaders(w)
// write success response.
writeSuccessResponse(w, 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) || api.Filesystem.IsReadOnlyBucket(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)
}