2016-07-17 21:32:05 +02:00
|
|
|
/*
|
|
|
|
* Minio Cloud Storage, (C) 2016 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 main
|
|
|
|
|
|
|
|
import (
|
|
|
|
"net/http"
|
|
|
|
"strings"
|
|
|
|
|
|
|
|
"github.com/gorilla/mux"
|
|
|
|
)
|
|
|
|
|
|
|
|
// Validate all the ListObjects query arguments, returns an APIErrorCode
|
|
|
|
// if one of the args do not meet the required conditions.
|
|
|
|
// Special conditions required by Minio server are as below
|
|
|
|
// - delimiter if set should be equal to '/', otherwise the request is rejected.
|
|
|
|
// - marker if set should have a common prefix with 'prefix' param, otherwise
|
|
|
|
// the request is rejected.
|
|
|
|
func listObjectsValidateArgs(prefix, marker, delimiter string, maxKeys int) APIErrorCode {
|
|
|
|
// Max keys cannot be negative.
|
|
|
|
if maxKeys < 0 {
|
|
|
|
return ErrInvalidMaxKeys
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Minio special conditions for ListObjects.
|
|
|
|
|
|
|
|
// Verify if delimiter is anything other than '/', which we do not support.
|
|
|
|
if delimiter != "" && delimiter != "/" {
|
|
|
|
return ErrNotImplemented
|
|
|
|
}
|
|
|
|
// Marker is set validate pre-condition.
|
|
|
|
if marker != "" {
|
|
|
|
// Marker not common with prefix is not implemented.
|
|
|
|
if !strings.HasPrefix(marker, prefix) {
|
|
|
|
return ErrNotImplemented
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Success.
|
|
|
|
return ErrNone
|
|
|
|
}
|
|
|
|
|
|
|
|
// ListObjectsV2Handler - GET Bucket (List Objects) Version 2.
|
|
|
|
// --------------------------
|
|
|
|
// This implementation of the GET operation returns some or all (up to 1000)
|
|
|
|
// of the objects in a bucket. You can use the request parameters as selection
|
|
|
|
// criteria to return a subset of the objects in a bucket.
|
|
|
|
//
|
|
|
|
// NOTE: It is recommended that this API to be used for application development.
|
|
|
|
// Minio continues to support ListObjectsV1 for supporting legacy tools.
|
|
|
|
func (api objectAPIHandlers) ListObjectsV2Handler(w http.ResponseWriter, r *http.Request) {
|
|
|
|
vars := mux.Vars(r)
|
|
|
|
bucket := vars["bucket"]
|
|
|
|
|
|
|
|
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/using-with-s3-actions.html
|
2016-07-29 05:49:08 +02:00
|
|
|
if s3Error := enforceBucketPolicy(api, "s3:ListBucket", bucket, r.URL); s3Error != ErrNone {
|
2016-07-17 21:32:05 +02:00
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
case authTypeSigned, authTypePresigned:
|
|
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Extract all the listObjectsV2 query params to their native values.
|
|
|
|
prefix, token, startAfter, delimiter, maxKeys, _ := getListObjectsV2Args(r.URL.Query())
|
|
|
|
|
|
|
|
// In ListObjectsV2 'continuation-token' is the marker.
|
|
|
|
marker := token
|
|
|
|
// Check if 'continuation-token' is empty.
|
|
|
|
if token == "" {
|
|
|
|
// Then we need to use 'start-after' as marker instead.
|
|
|
|
marker = startAfter
|
|
|
|
}
|
|
|
|
// Validate all the query params before beginning to serve the request.
|
|
|
|
if s3Error := listObjectsValidateArgs(prefix, marker, delimiter, maxKeys); s3Error != ErrNone {
|
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
// Inititate a list objects operation based on the input params.
|
|
|
|
// On success would return back ListObjectsInfo object to be
|
|
|
|
// marshalled into S3 compatible XML header.
|
|
|
|
listObjectsInfo, err := api.ObjectAPI.ListObjects(bucket, prefix, marker, delimiter, maxKeys)
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to list objects.")
|
|
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
response := generateListObjectsV2Response(bucket, prefix, token, startAfter, delimiter, maxKeys, listObjectsInfo)
|
|
|
|
// Write headers
|
|
|
|
setCommonHeaders(w)
|
|
|
|
// Write success response.
|
|
|
|
writeSuccessResponse(w, encodeResponse(response))
|
|
|
|
}
|
|
|
|
|
|
|
|
// ListObjectsV1Handler - GET Bucket (List Objects) Version 1.
|
|
|
|
// --------------------------
|
|
|
|
// This implementation of the GET operation returns some or all (up to 1000)
|
|
|
|
// of the objects in a bucket. You can use the request parameters as selection
|
|
|
|
// criteria to return a subset of the objects in a bucket.
|
|
|
|
//
|
|
|
|
func (api objectAPIHandlers) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
|
|
|
|
vars := mux.Vars(r)
|
|
|
|
bucket := vars["bucket"]
|
|
|
|
|
|
|
|
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/using-with-s3-actions.html
|
2016-07-29 05:49:08 +02:00
|
|
|
if s3Error := enforceBucketPolicy(api, "s3:ListBucket", bucket, r.URL); s3Error != ErrNone {
|
2016-07-17 21:32:05 +02:00
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
case authTypeSigned, authTypePresigned:
|
|
|
|
if s3Error := isReqAuthenticated(r); s3Error != ErrNone {
|
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Extract all the litsObjectsV1 query params to their native values.
|
|
|
|
prefix, marker, delimiter, maxKeys, _ := getListObjectsV1Args(r.URL.Query())
|
|
|
|
|
|
|
|
// Validate all the query params before beginning to serve the request.
|
|
|
|
if s3Error := listObjectsValidateArgs(prefix, marker, delimiter, maxKeys); s3Error != ErrNone {
|
|
|
|
writeErrorResponse(w, r, s3Error, r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
// Inititate a list objects operation based on the input params.
|
|
|
|
// On success would return back ListObjectsInfo object to be
|
|
|
|
// marshalled into S3 compatible XML header.
|
|
|
|
listObjectsInfo, err := api.ObjectAPI.ListObjects(bucket, prefix, marker, delimiter, maxKeys)
|
|
|
|
if err != nil {
|
|
|
|
errorIf(err, "Unable to list objects.")
|
|
|
|
writeErrorResponse(w, r, toAPIErrorCode(err), r.URL.Path)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
response := generateListObjectsV1Response(bucket, prefix, marker, delimiter, maxKeys, listObjectsInfo)
|
|
|
|
// Write headers
|
|
|
|
setCommonHeaders(w)
|
|
|
|
// Write success response.
|
|
|
|
writeSuccessResponse(w, encodeResponse(response))
|
|
|
|
}
|