Additionally don't set content-type if not present, golang http server automaticaly handles this and sets it automatically.
163 lines
4.8 KiB
Go
163 lines
4.8 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 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 implied.
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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 "strings"
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// listObjects - wrapper function implemented over file tree walk.
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func (xl xlObjects) listObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, error) {
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// Default is recursive, if delimiter is set then list non recursive.
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recursive := true
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if delimiter == slashSeparator {
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recursive = false
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}
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walkResultCh, endWalkCh := xl.listPool.Release(listParams{bucket, recursive, marker, prefix})
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if walkResultCh == nil {
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endWalkCh = make(chan struct{})
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isLeaf := xl.isObject
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listDir := listDirFactory(isLeaf, xl.getLoadBalancedQuorumDisks()...)
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walkResultCh = startTreeWalk(bucket, prefix, marker, recursive, listDir, isLeaf, endWalkCh)
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}
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var objInfos []ObjectInfo
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var eof bool
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var nextMarker string
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for i := 0; i < maxKeys; {
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walkResult, ok := <-walkResultCh
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if !ok {
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// Closed channel.
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eof = true
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break
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}
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// For any walk error return right away.
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if walkResult.err != nil {
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// File not found is a valid case.
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if walkResult.err == errFileNotFound {
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return ListObjectsInfo{}, nil
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}
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return ListObjectsInfo{}, toObjectErr(walkResult.err, bucket, prefix)
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}
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entry := walkResult.entry
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var objInfo ObjectInfo
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if strings.HasSuffix(entry, slashSeparator) {
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// Object name needs to be full path.
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objInfo.Bucket = bucket
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objInfo.Name = entry
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objInfo.IsDir = true
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} else {
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// Set the Mode to a "regular" file.
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var err error
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objInfo, err = xl.getObjectInfo(bucket, entry)
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if err != nil {
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// Ignore errFileNotFound
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if err == errFileNotFound {
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errorIf(err, "Unable to get object info", bucket, entry)
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continue
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}
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return ListObjectsInfo{}, toObjectErr(err, bucket, prefix)
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}
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}
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nextMarker = objInfo.Name
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objInfos = append(objInfos, objInfo)
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i++
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if walkResult.end == true {
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eof = true
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break
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}
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}
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params := listParams{bucket, recursive, nextMarker, prefix}
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if !eof {
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xl.listPool.Set(params, walkResultCh, endWalkCh)
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}
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result := ListObjectsInfo{IsTruncated: !eof}
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for _, objInfo := range objInfos {
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result.NextMarker = objInfo.Name
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if objInfo.IsDir {
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result.Prefixes = append(result.Prefixes, objInfo.Name)
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continue
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}
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result.Objects = append(result.Objects, ObjectInfo{
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Name: objInfo.Name,
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ModTime: objInfo.ModTime,
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Size: objInfo.Size,
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MD5Sum: objInfo.MD5Sum,
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IsDir: false,
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})
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}
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return result, nil
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}
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// ListObjects - list all objects at prefix, delimited by '/'.
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func (xl xlObjects) ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, error) {
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// Verify if bucket is valid.
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if !IsValidBucketName(bucket) {
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return ListObjectsInfo{}, BucketNameInvalid{Bucket: bucket}
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}
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// Verify if bucket exists.
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if !xl.isBucketExist(bucket) {
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return ListObjectsInfo{}, BucketNotFound{Bucket: bucket}
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}
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if !IsValidObjectPrefix(prefix) {
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return ListObjectsInfo{}, ObjectNameInvalid{Bucket: bucket, Object: prefix}
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}
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// Verify if delimiter is anything other than '/', which we do not support.
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if delimiter != "" && delimiter != slashSeparator {
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return ListObjectsInfo{}, UnsupportedDelimiter{
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Delimiter: delimiter,
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}
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}
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// Verify if marker has prefix.
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if marker != "" {
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if !strings.HasPrefix(marker, prefix) {
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return ListObjectsInfo{}, InvalidMarkerPrefixCombination{
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Marker: marker,
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Prefix: prefix,
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}
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}
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}
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// With max keys of zero we have reached eof, return right here.
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if maxKeys == 0 {
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return ListObjectsInfo{}, nil
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}
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// For delimiter and prefix as '/' we do not list anything at all
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// since according to s3 spec we stop at the 'delimiter' along
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// with the prefix. On a flat namespace with 'prefix' as '/'
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// we don't have any entries, since all the keys are of form 'keyName/...'
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if delimiter == slashSeparator && prefix == slashSeparator {
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return ListObjectsInfo{}, nil
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}
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// Over flowing count - reset to maxObjectList.
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if maxKeys < 0 || maxKeys > maxObjectList {
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maxKeys = maxObjectList
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}
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// Initiate a list operation, if successful filter and return quickly.
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listObjInfo, err := xl.listObjects(bucket, prefix, marker, delimiter, maxKeys)
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if err == nil {
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// We got the entries successfully return.
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return listObjInfo, nil
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}
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// Return error at the end.
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return ListObjectsInfo{}, toObjectErr(err, bucket, prefix)
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}
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