minio/cmd/api-resources.go
Anis Elleuch 61927d228c listV2: Continuation and NextContinuation tokens are encoded with base64 (#8337)
Minio V2 listing uses object names/prefixes as continuation tokens. This
is problematic when object names contain some characters that are forbidden
in XML documents. This PR will use base64 encoded form of continuation
and next continuation tokens to address that corner case.
2019-10-02 01:39:29 +05:30

152 lines
4.1 KiB
Go

/*
* MinIO Cloud Storage, (C) 2015, 2016, 2017, 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"encoding/base64"
"net/url"
"strconv"
)
// Parse bucket url queries
func getListObjectsV1Args(values url.Values) (prefix, marker, delimiter string, maxkeys int, encodingType string, errCode APIErrorCode) {
errCode = ErrNone
if values.Get("max-keys") != "" {
var err error
if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
errCode = ErrInvalidMaxKeys
return
}
} else {
maxkeys = maxObjectList
}
prefix = values.Get("prefix")
marker = values.Get("marker")
delimiter = values.Get("delimiter")
encodingType = values.Get("encoding-type")
return
}
func getListBucketObjectVersionsArgs(values url.Values) (prefix, marker, delimiter string, maxkeys int, encodingType, versionIDMarker string, errCode APIErrorCode) {
errCode = ErrNone
if values.Get("max-keys") != "" {
var err error
if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
errCode = ErrInvalidMaxKeys
return
}
} else {
maxkeys = maxObjectList
}
prefix = values.Get("prefix")
marker = values.Get("key-marker")
delimiter = values.Get("delimiter")
encodingType = values.Get("encoding-type")
versionIDMarker = values.Get("version-id-marker")
return
}
// Parse bucket url queries for ListObjects V2.
func getListObjectsV2Args(values url.Values) (prefix, token, startAfter, delimiter string, fetchOwner bool, maxkeys int, encodingType string, errCode APIErrorCode) {
errCode = ErrNone
// The continuation-token cannot be empty.
if val, ok := values["continuation-token"]; ok {
if len(val[0]) == 0 {
errCode = ErrIncorrectContinuationToken
return
}
}
if values.Get("max-keys") != "" {
var err error
if maxkeys, err = strconv.Atoi(values.Get("max-keys")); err != nil {
errCode = ErrInvalidMaxKeys
return
}
} else {
maxkeys = maxObjectList
}
prefix = values.Get("prefix")
startAfter = values.Get("start-after")
delimiter = values.Get("delimiter")
fetchOwner = values.Get("fetch-owner") == "true"
encodingType = values.Get("encoding-type")
if token = values.Get("continuation-token"); token != "" {
decodedToken, err := base64.StdEncoding.DecodeString(token)
if err != nil {
errCode = ErrIncorrectContinuationToken
return
}
token = string(decodedToken)
}
return
}
// Parse bucket url queries for ?uploads
func getBucketMultipartResources(values url.Values) (prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int, encodingType string, errCode APIErrorCode) {
errCode = ErrNone
if values.Get("max-uploads") != "" {
var err error
if maxUploads, err = strconv.Atoi(values.Get("max-uploads")); err != nil {
errCode = ErrInvalidMaxUploads
return
}
} else {
maxUploads = maxUploadsList
}
prefix = values.Get("prefix")
keyMarker = values.Get("key-marker")
uploadIDMarker = values.Get("upload-id-marker")
delimiter = values.Get("delimiter")
encodingType = values.Get("encoding-type")
return
}
// Parse object url queries
func getObjectResources(values url.Values) (uploadID string, partNumberMarker, maxParts int, encodingType string, errCode APIErrorCode) {
var err error
errCode = ErrNone
if values.Get("max-parts") != "" {
if maxParts, err = strconv.Atoi(values.Get("max-parts")); err != nil {
errCode = ErrInvalidMaxParts
return
}
} else {
maxParts = maxPartsList
}
if values.Get("part-number-marker") != "" {
if partNumberMarker, err = strconv.Atoi(values.Get("part-number-marker")); err != nil {
errCode = ErrInvalidPartNumberMarker
return
}
}
uploadID = values.Get("uploadId")
encodingType = values.Get("encoding-type")
return
}