mirror of https://github.com/minio/minio.git
112 lines
3.0 KiB
Go
112 lines
3.0 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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"encoding/json"
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mstorage "github.com/minio-io/minio/pkg/storage"
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)
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// GetBucketPolicy - GET bucket policy
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func (storage *Storage) GetBucketPolicy(bucket string) (mstorage.BucketPolicy, error) {
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storage.lock.Lock()
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defer storage.lock.Unlock()
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var p mstorage.BucketPolicy
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// verify bucket path legal
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if mstorage.IsValidBucket(bucket) == false {
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return mstorage.BucketPolicy{}, 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.BucketPolicy{}, mstorage.BucketNotFound{Bucket: bucket}
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}
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// get policy path
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bucketPolicy := path.Join(storage.root, bucket+"_mstoragejson")
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filestat, err := os.Stat(bucketPolicy)
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if os.IsNotExist(err) {
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return mstorage.BucketPolicy{}, mstorage.BucketPolicyNotFound{Bucket: bucket}
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}
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if filestat.IsDir() {
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return mstorage.BucketPolicy{}, mstorage.BackendCorrupted{Path: bucketPolicy}
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}
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file, err := os.OpenFile(bucketPolicy, os.O_RDONLY, 0666)
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defer file.Close()
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if err != nil {
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return mstorage.BucketPolicy{}, mstorage.EmbedError(bucket, "", err)
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}
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encoder := json.NewDecoder(file)
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err = encoder.Decode(&p)
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if err != nil {
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return mstorage.BucketPolicy{}, mstorage.EmbedError(bucket, "", err)
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}
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return p, nil
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}
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// StoreBucketPolicy - PUT bucket policy
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func (storage *Storage) StoreBucketPolicy(bucket string, p mstorage.BucketPolicy) 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.BucketNotFound{
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Bucket: bucket,
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}
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}
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// get policy path
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bucketPolicy := path.Join(storage.root, bucket+"_policy.json")
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filestat, ret := os.Stat(bucketPolicy)
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if !os.IsNotExist(ret) {
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if filestat.IsDir() {
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return mstorage.BackendCorrupted{Path: bucketPolicy}
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}
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}
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file, err := os.OpenFile(bucketPolicy, os.O_WRONLY|os.O_CREATE, 0600)
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defer file.Close()
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if err != nil {
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return mstorage.EmbedError(bucket, "", err)
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}
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encoder := json.NewEncoder(file)
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err = encoder.Encode(p)
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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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