mirror of https://github.com/minio/minio.git
134 lines
3.7 KiB
Go
134 lines
3.7 KiB
Go
/*
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* Mini Object 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 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 fs
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import (
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"os"
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"path"
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"sort"
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"strings"
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"io/ioutil"
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"path/filepath"
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mstorage "github.com/minio-io/minio/pkg/storage"
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)
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/// Bucket Operations
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// ListBuckets - Get service
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func (storage *Storage) ListBuckets() ([]mstorage.BucketMetadata, error) {
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files, err := ioutil.ReadDir(storage.root)
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if err != nil {
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return []mstorage.BucketMetadata{}, mstorage.EmbedError("bucket", "", err)
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}
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var metadataList []mstorage.BucketMetadata
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for _, file := range files {
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// Skip policy files
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if strings.HasSuffix(file.Name(), "_policy.json") {
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continue
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}
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if !file.IsDir() {
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return []mstorage.BucketMetadata{}, mstorage.BackendCorrupted{Path: storage.root}
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}
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metadata := mstorage.BucketMetadata{
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Name: file.Name(),
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Created: file.ModTime(), // TODO - provide real created time
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}
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metadataList = append(metadataList, metadata)
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}
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return metadataList, nil
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}
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// CreateBucket - PUT Bucket
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func (storage *Storage) CreateBucket(bucket string) error {
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storage.lock.Lock()
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defer storage.lock.Unlock()
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// verify bucket path legal
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if mstorage.IsValidBucket(bucket) == false {
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return mstorage.BucketNameInvalid{Bucket: bucket}
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}
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// get bucket path
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bucketDir := path.Join(storage.root, bucket)
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// check if bucket exists
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if _, err := os.Stat(bucketDir); err == nil {
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return mstorage.BucketExists{
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Bucket: bucket,
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}
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}
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// make bucket
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err := os.Mkdir(bucketDir, 0700)
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if err != nil {
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return mstorage.EmbedError(bucket, "", err)
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}
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return nil
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}
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// ListObjects - GET bucket (list objects)
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func (storage *Storage) ListObjects(bucket string, resources mstorage.BucketResourcesMetadata) ([]mstorage.ObjectMetadata, mstorage.BucketResourcesMetadata, error) {
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p := bucketDir{}
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p.files = make(map[string]os.FileInfo)
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if mstorage.IsValidBucket(bucket) == false {
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return []mstorage.ObjectMetadata{}, resources, mstorage.BucketNameInvalid{Bucket: bucket}
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}
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if resources.Prefix != "" && mstorage.IsValidObject(resources.Prefix) == false {
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return []mstorage.ObjectMetadata{}, resources, mstorage.ObjectNameInvalid{Bucket: bucket, Object: resources.Prefix}
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}
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rootPrefix := path.Join(storage.root, bucket)
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// check bucket exists
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if _, err := os.Stat(rootPrefix); os.IsNotExist(err) {
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return []mstorage.ObjectMetadata{}, resources, mstorage.BucketNotFound{Bucket: bucket}
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}
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p.root = rootPrefix
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err := filepath.Walk(rootPrefix, p.getAllFiles)
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if err != nil {
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return []mstorage.ObjectMetadata{}, resources, mstorage.EmbedError(bucket, "", err)
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}
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var metadataList []mstorage.ObjectMetadata
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var metadata mstorage.ObjectMetadata
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// Populate filtering mode
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resources.Mode = mstorage.GetMode(resources)
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for name, file := range p.files {
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if len(metadataList) >= resources.Maxkeys {
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resources.IsTruncated = true
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goto ret
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}
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metadata, resources, err = storage.filter(bucket, name, file, resources)
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if err != nil {
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return []mstorage.ObjectMetadata{}, resources, mstorage.EmbedError(bucket, "", err)
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}
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if metadata.Bucket != "" {
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metadataList = append(metadataList, metadata)
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}
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}
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ret:
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sort.Sort(byObjectKey(metadataList))
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return metadataList, resources, nil
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}
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