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146 lines
4.0 KiB
146 lines
4.0 KiB
/*
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* Minimalist Object File, (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 file
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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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"github.com/minio-io/minio/pkg/storage/drivers"
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)
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/// Bucket Operations
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// GetBucketMetadata - head
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func (file *fileDriver) GetBucketMetadata(bucket string) (drivers.BucketMetadata, error) {
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st, err := os.Stat(path.Join(file.root, bucket))
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if err != nil {
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return drivers.BucketMetadata{}, drivers.BucketNotFound{Bucket: bucket}
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}
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bucketMetadata := drivers.BucketMetadata{
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Name: st.Name(),
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Created: st.ModTime(),
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}
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return bucketMetadata, nil
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}
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// ListBuckets - Get service
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func (file *fileDriver) ListBuckets() ([]drivers.BucketMetadata, error) {
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files, err := ioutil.ReadDir(file.root)
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if err != nil {
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return []drivers.BucketMetadata{}, drivers.EmbedError("bucket", "", err)
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}
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var metadataList []drivers.BucketMetadata
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for _, fileName := range files {
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// Skip policy files
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if strings.HasSuffix(fileName.Name(), "_policy.json") {
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continue
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}
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if !fileName.IsDir() {
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return []drivers.BucketMetadata{}, drivers.BackendCorrupted{Path: file.root}
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}
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metadata := drivers.BucketMetadata{
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Name: fileName.Name(),
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Created: fileName.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 (file *fileDriver) CreateBucket(bucket string) error {
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file.lock.Lock()
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defer file.lock.Unlock()
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// verify bucket path legal
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if drivers.IsValidBucket(bucket) == false {
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return drivers.BucketNameInvalid{Bucket: bucket}
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}
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// get bucket path
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bucketDir := path.Join(file.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 drivers.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 drivers.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 (file *fileDriver) ListObjects(bucket string, resources drivers.BucketResourcesMetadata) ([]drivers.ObjectMetadata, drivers.BucketResourcesMetadata, error) {
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p := bucketDir{}
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p.files = make(map[string]os.FileInfo)
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if drivers.IsValidBucket(bucket) == false {
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return []drivers.ObjectMetadata{}, resources, drivers.BucketNameInvalid{Bucket: bucket}
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}
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if resources.Prefix != "" && drivers.IsValidObject(resources.Prefix) == false {
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return []drivers.ObjectMetadata{}, resources, drivers.ObjectNameInvalid{Bucket: bucket, Object: resources.Prefix}
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}
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rootPrefix := path.Join(file.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 []drivers.ObjectMetadata{}, resources, drivers.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 []drivers.ObjectMetadata{}, resources, drivers.EmbedError(bucket, "", err)
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}
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var metadataList []drivers.ObjectMetadata
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var metadata drivers.ObjectMetadata
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// Populate filtering mode
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resources.Mode = drivers.GetMode(resources)
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for name, f := 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 = file.filter(bucket, name, f, resources)
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if err != nil {
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return []drivers.ObjectMetadata{}, resources, drivers.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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