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541 lines
15 KiB
541 lines
15 KiB
/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implieapi.Donut.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"net/http"
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"strconv"
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"github.com/gorilla/mux"
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"github.com/minio/minio/pkg/donut"
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"github.com/minio/minio/pkg/probe"
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signv4 "github.com/minio/minio/pkg/signature"
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)
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const (
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maxPartsList = 1000
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)
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// GetObjectHandler - GET Object
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// ----------
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// This implementation of the GET operation retrieves object. To use GET,
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// you must have READ access to the object.
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func (api API) GetObjectHandler(w http.ResponseWriter, req *http.Request) {
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// ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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var object, bucket string
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vars := mux.Vars(req)
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bucket = vars["bucket"]
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object = vars["object"]
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metadata, err := api.Donut.GetObjectMetadata(bucket, object)
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if err != nil {
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errorIf(err.Trace(), "GetObject failed.", nil)
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switch err.ToGoError().(type) {
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case donut.BucketNameInvalid:
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writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
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case donut.BucketNotFound:
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writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
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case donut.ObjectNotFound:
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writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
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case donut.ObjectNameInvalid:
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writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
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var hrange *httpRange
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hrange, err = getRequestedRange(req.Header.Get("Range"), metadata.Size)
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if err != nil {
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writeErrorResponse(w, req, InvalidRange, req.URL.Path)
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return
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}
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setObjectHeaders(w, metadata, hrange)
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if _, err = api.Donut.GetObject(w, bucket, object, hrange.start, hrange.length); err != nil {
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errorIf(err.Trace(), "GetObject failed.", nil)
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return
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}
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}
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// HeadObjectHandler - HEAD Object
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// -----------
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// The HEAD operation retrieves metadata from an object without returning the object itself.
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func (api API) HeadObjectHandler(w http.ResponseWriter, req *http.Request) {
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// ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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var object, bucket string
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vars := mux.Vars(req)
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bucket = vars["bucket"]
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object = vars["object"]
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metadata, err := api.Donut.GetObjectMetadata(bucket, object)
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if err != nil {
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errorIf(err.Trace(), "GetObjectMetadata failed.", nil)
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switch err.ToGoError().(type) {
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case donut.BucketNameInvalid:
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writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
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case donut.BucketNotFound:
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writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
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case donut.ObjectNotFound:
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writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
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case donut.ObjectNameInvalid:
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writeErrorResponse(w, req, NoSuchKey, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
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setObjectHeaders(w, metadata, nil)
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w.WriteHeader(http.StatusOK)
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}
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// PutObjectHandler - PUT Object
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// ----------
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// This implementation of the PUT operation adds an object to a bucket.
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func (api API) PutObjectHandler(w http.ResponseWriter, req *http.Request) {
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// Ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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var object, bucket string
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vars := mux.Vars(req)
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bucket = vars["bucket"]
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object = vars["object"]
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// get Content-MD5 sent by client and verify if valid
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md5 := req.Header.Get("Content-MD5")
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if !isValidMD5(md5) {
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writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
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return
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}
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/// if Content-Length missing, deny the request
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size := req.Header.Get("Content-Length")
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if size == "" {
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writeErrorResponse(w, req, MissingContentLength, req.URL.Path)
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return
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}
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/// maximum Upload size for objects in a single operation
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if isMaxObjectSize(size) {
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writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
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return
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}
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/// minimum Upload size for objects in a single operation
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//
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// Surprisingly while Amazon in their document states that S3 objects have 1byte
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// as the minimum limit, they do not seem to enforce it one can successfully
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// create a 0byte file using a regular putObject() operation
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//
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// if isMinObjectSize(size) {
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// writeErrorResponse(w, req, EntityTooSmall, req.URL.Path)
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// return
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// }
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var sizeInt64 int64
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{
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var err error
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sizeInt64, err = strconv.ParseInt(size, 10, 64)
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if err != nil {
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writeErrorResponse(w, req, InvalidRequest, req.URL.Path)
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return
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}
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}
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var signature *signv4.Signature
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if _, ok := req.Header["Authorization"]; ok {
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// Init signature V4 verification
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var err *probe.Error
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signature, err = initSignatureV4(req)
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if err != nil {
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errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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return
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}
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}
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metadata, err := api.Donut.CreateObject(bucket, object, md5, sizeInt64, req.Body, nil, signature)
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if err != nil {
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errorIf(err.Trace(), "CreateObject failed.", nil)
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switch err.ToGoError().(type) {
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case donut.BucketNotFound:
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writeErrorResponse(w, req, NoSuchBucket, req.URL.Path)
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case donut.BucketNameInvalid:
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writeErrorResponse(w, req, InvalidBucketName, req.URL.Path)
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case donut.ObjectExists:
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writeErrorResponse(w, req, MethodNotAllowed, req.URL.Path)
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case donut.BadDigest:
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writeErrorResponse(w, req, BadDigest, req.URL.Path)
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case signv4.MissingDateHeader:
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writeErrorResponse(w, req, RequestTimeTooSkewed, req.URL.Path)
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case signv4.DoesNotMatch:
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writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
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case donut.IncompleteBody:
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writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
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case donut.EntityTooLarge:
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writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
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case donut.InvalidDigest:
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writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
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w.Header().Set("ETag", metadata.MD5Sum)
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writeSuccessResponse(w)
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}
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/// Multipart API
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// NewMultipartUploadHandler - New multipart upload
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func (api API) NewMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
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// Ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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if !isRequestUploads(req.URL.Query()) {
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writeErrorResponse(w, req, MethodNotAllowed, req.URL.Path)
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return
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}
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var object, bucket string
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vars := mux.Vars(req)
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bucket = vars["bucket"]
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object = vars["object"]
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uploadID, err := api.Donut.NewMultipartUpload(bucket, object, req.Header.Get("Content-Type"))
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if err != nil {
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errorIf(err.Trace(), "NewMultipartUpload failed.", nil)
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switch err.ToGoError().(type) {
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case donut.ObjectExists:
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writeErrorResponse(w, req, MethodNotAllowed, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
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response := generateInitiateMultipartUploadResponse(bucket, object, uploadID)
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encodedSuccessResponse := encodeSuccessResponse(response)
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// write headers
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setCommonHeaders(w, len(encodedSuccessResponse))
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// write body
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w.Write(encodedSuccessResponse)
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}
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// PutObjectPartHandler - Upload part
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func (api API) PutObjectPartHandler(w http.ResponseWriter, req *http.Request) {
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// Ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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// get Content-MD5 sent by client and verify if valid
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md5 := req.Header.Get("Content-MD5")
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if !isValidMD5(md5) {
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writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
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return
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}
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/// if Content-Length missing, throw away
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size := req.Header.Get("Content-Length")
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if size == "" {
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writeErrorResponse(w, req, MissingContentLength, req.URL.Path)
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return
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}
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/// maximum Upload size for multipart objects in a single operation
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if isMaxObjectSize(size) {
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writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
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return
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}
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var sizeInt64 int64
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{
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var err error
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sizeInt64, err = strconv.ParseInt(size, 10, 64)
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if err != nil {
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writeErrorResponse(w, req, InvalidRequest, req.URL.Path)
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return
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}
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}
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vars := mux.Vars(req)
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bucket := vars["bucket"]
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object := vars["object"]
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uploadID := req.URL.Query().Get("uploadId")
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partIDString := req.URL.Query().Get("partNumber")
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var partID int
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{
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var err error
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partID, err = strconv.Atoi(partIDString)
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if err != nil {
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writeErrorResponse(w, req, InvalidPart, req.URL.Path)
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return
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}
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}
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var signature *signv4.Signature
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if _, ok := req.Header["Authorization"]; ok {
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// Init signature V4 verification
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var err *probe.Error
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signature, err = initSignatureV4(req)
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if err != nil {
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errorIf(err.Trace(), "Initializing signature v4 failed.", nil)
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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return
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}
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}
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calculatedMD5, err := api.Donut.CreateObjectPart(bucket, object, uploadID, partID, "", md5, sizeInt64, req.Body, signature)
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if err != nil {
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errorIf(err.Trace(), "CreateObjectPart failed.", nil)
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switch err.ToGoError().(type) {
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case donut.InvalidUploadID:
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writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
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case donut.ObjectExists:
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writeErrorResponse(w, req, MethodNotAllowed, req.URL.Path)
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case donut.BadDigest:
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writeErrorResponse(w, req, BadDigest, req.URL.Path)
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case signv4.DoesNotMatch:
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writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
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case donut.IncompleteBody:
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writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
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case donut.EntityTooLarge:
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writeErrorResponse(w, req, EntityTooLarge, req.URL.Path)
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case donut.InvalidDigest:
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writeErrorResponse(w, req, InvalidDigest, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
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w.Header().Set("ETag", calculatedMD5)
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writeSuccessResponse(w)
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}
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// AbortMultipartUploadHandler - Abort multipart upload
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func (api API) AbortMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
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// Ticket master block
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{
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op := APIOperation{}
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op.ProceedCh = make(chan struct{})
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api.OP <- op
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// block until Ticket master gives us a go
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<-op.ProceedCh
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}
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if !api.isValidOp(w, req) {
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return
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}
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vars := mux.Vars(req)
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bucket := vars["bucket"]
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object := vars["object"]
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objectResourcesMetadata := getObjectResources(req.URL.Query())
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err := api.Donut.AbortMultipartUpload(bucket, object, objectResourcesMetadata.UploadID)
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if err != nil {
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errorIf(err.Trace(), "AbortMutlipartUpload failed.", nil)
|
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switch err.ToGoError().(type) {
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case donut.InvalidUploadID:
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writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
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default:
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writeErrorResponse(w, req, InternalError, req.URL.Path)
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}
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return
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}
|
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setCommonHeaders(w, 0)
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w.WriteHeader(http.StatusNoContent)
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}
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// ListObjectPartsHandler - List object parts
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func (api API) ListObjectPartsHandler(w http.ResponseWriter, req *http.Request) {
|
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// Ticket master block
|
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{
|
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op := APIOperation{}
|
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op.ProceedCh = make(chan struct{})
|
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api.OP <- op
|
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// block until Ticket master gives us a go
|
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<-op.ProceedCh
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}
|
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|
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if !api.isValidOp(w, req) {
|
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return
|
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}
|
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|
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objectResourcesMetadata := getObjectResources(req.URL.Query())
|
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if objectResourcesMetadata.PartNumberMarker < 0 {
|
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writeErrorResponse(w, req, InvalidPartNumberMarker, req.URL.Path)
|
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return
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|
}
|
|
if objectResourcesMetadata.MaxParts < 0 {
|
|
writeErrorResponse(w, req, InvalidMaxParts, req.URL.Path)
|
|
return
|
|
}
|
|
if objectResourcesMetadata.MaxParts == 0 {
|
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objectResourcesMetadata.MaxParts = maxPartsList
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|
}
|
|
|
|
vars := mux.Vars(req)
|
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bucket := vars["bucket"]
|
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object := vars["object"]
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|
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objectResourcesMetadata, err := api.Donut.ListObjectParts(bucket, object, objectResourcesMetadata)
|
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if err != nil {
|
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errorIf(err.Trace(), "ListObjectParts failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case donut.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 API) CompleteMultipartUploadHandler(w http.ResponseWriter, req *http.Request) {
|
|
// Ticket master block
|
|
{
|
|
op := APIOperation{}
|
|
op.ProceedCh = make(chan struct{})
|
|
api.OP <- op
|
|
// block until Ticket master gives us a go
|
|
<-op.ProceedCh
|
|
}
|
|
|
|
if !api.isValidOp(w, req) {
|
|
return
|
|
}
|
|
|
|
vars := mux.Vars(req)
|
|
bucket := vars["bucket"]
|
|
object := vars["object"]
|
|
|
|
objectResourcesMetadata := getObjectResources(req.URL.Query())
|
|
|
|
var signature *signv4.Signature
|
|
if _, ok := req.Header["Authorization"]; ok {
|
|
// 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.Donut.CompleteMultipartUpload(bucket, object, objectResourcesMetadata.UploadID, req.Body, signature)
|
|
if err != nil {
|
|
errorIf(err.Trace(), "CompleteMultipartUpload failed.", nil)
|
|
switch err.ToGoError().(type) {
|
|
case donut.InvalidUploadID:
|
|
writeErrorResponse(w, req, NoSuchUpload, req.URL.Path)
|
|
case donut.InvalidPart:
|
|
writeErrorResponse(w, req, InvalidPart, req.URL.Path)
|
|
case donut.InvalidPartOrder:
|
|
writeErrorResponse(w, req, InvalidPartOrder, req.URL.Path)
|
|
case signv4.MissingDateHeader:
|
|
writeErrorResponse(w, req, RequestTimeTooSkewed, req.URL.Path)
|
|
case signv4.DoesNotMatch:
|
|
writeErrorResponse(w, req, SignatureDoesNotMatch, req.URL.Path)
|
|
case donut.IncompleteBody:
|
|
writeErrorResponse(w, req, IncompleteBody, req.URL.Path)
|
|
case donut.MalformedXML:
|
|
writeErrorResponse(w, req, MalformedXML, req.URL.Path)
|
|
default:
|
|
writeErrorResponse(w, req, InternalError, req.URL.Path)
|
|
}
|
|
return
|
|
}
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, "", metadata.MD5Sum)
|
|
encodedSuccessResponse := encodeSuccessResponse(response)
|
|
// write headers
|
|
setCommonHeaders(w, len(encodedSuccessResponse))
|
|
// write body
|
|
w.Write(encodedSuccessResponse)
|
|
}
|
|
|
|
/// Delete API
|
|
|
|
// DeleteBucketHandler - Delete bucket
|
|
func (api API) DeleteBucketHandler(w http.ResponseWriter, req *http.Request) {
|
|
error := getErrorCode(MethodNotAllowed)
|
|
w.WriteHeader(error.HTTPStatusCode)
|
|
}
|
|
|
|
// DeleteObjectHandler - Delete object
|
|
func (api API) DeleteObjectHandler(w http.ResponseWriter, req *http.Request) {
|
|
error := getErrorCode(MethodNotAllowed)
|
|
w.WriteHeader(error.HTTPStatusCode)
|
|
}
|
|
|