129 lines
3.2 KiB
Go
129 lines
3.2 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015, 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 (
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"io/ioutil"
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"os"
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"path/filepath"
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)
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// getBucketsConfigPath - get buckets path.
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func getBucketsConfigPath() (string, error) {
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configPath, err := getConfigPath()
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if err != nil {
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return "", err
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}
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return filepath.Join(configPath, "buckets"), nil
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}
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// getBucketConfigPath - get bucket config path.
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func getBucketConfigPath(bucket string) (string, error) {
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bucketsConfigPath, err := getBucketsConfigPath()
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if err != nil {
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return "", err
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}
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return filepath.Join(bucketsConfigPath, bucket), nil
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}
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// createBucketConfigPath - create bucket config directory.
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func createBucketConfigPath(bucket string) error {
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bucketConfigPath, err := getBucketConfigPath(bucket)
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if err != nil {
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return err
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}
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return os.MkdirAll(bucketConfigPath, 0700)
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}
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// readBucketPolicy - read bucket policy.
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func readBucketPolicy(bucket string) ([]byte, error) {
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// Verify bucket is valid.
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if !IsValidBucketName(bucket) {
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return nil, BucketNameInvalid{Bucket: bucket}
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}
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bucketConfigPath, err := getBucketConfigPath(bucket)
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if err != nil {
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return nil, err
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}
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// Get policy file.
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bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
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if _, err = os.Stat(bucketPolicyFile); err != nil {
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if os.IsNotExist(err) {
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return nil, BucketPolicyNotFound{Bucket: bucket}
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}
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return nil, err
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}
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return ioutil.ReadFile(bucketPolicyFile)
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}
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// removeBucketPolicy - remove bucket policy.
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func removeBucketPolicy(bucket string) error {
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// Verify bucket is valid.
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if !IsValidBucketName(bucket) {
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return BucketNameInvalid{Bucket: bucket}
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}
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bucketConfigPath, err := getBucketConfigPath(bucket)
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if err != nil {
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return err
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}
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// Get policy file.
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bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
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if _, err = os.Stat(bucketPolicyFile); err != nil {
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if os.IsNotExist(err) {
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return BucketPolicyNotFound{Bucket: bucket}
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}
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return err
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}
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if err := os.Remove(bucketPolicyFile); err != nil {
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return err
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}
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return nil
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}
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// writeBucketPolicy - save bucket policy.
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func writeBucketPolicy(bucket string, accessPolicyBytes []byte) error {
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// Verify if bucket path legal
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if !IsValidBucketName(bucket) {
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return BucketNameInvalid{Bucket: bucket}
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}
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// Create bucket config path.
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if err := createBucketConfigPath(bucket); err != nil {
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return err
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}
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bucketConfigPath, err := getBucketConfigPath(bucket)
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if err != nil {
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return err
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}
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// Get policy file.
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bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
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if _, err := os.Stat(bucketPolicyFile); err != nil {
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if !os.IsNotExist(err) {
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return err
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}
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}
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// Write bucket policy.
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return ioutil.WriteFile(bucketPolicyFile, accessPolicyBytes, 0600)
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}
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