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minio/bucket-policy.go

152 lines
3.9 KiB

/*
* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/minio/minio/pkg/probe"
)
// getBucketsConfigPath - get buckets path.
func getBucketsConfigPath() (string, *probe.Error) {
configPath, err := getConfigPath()
if err != nil {
return "", err.Trace()
}
return filepath.Join(configPath, "buckets"), nil
}
// createBucketsConfigPath - create buckets directory.
func createBucketsConfigPath() *probe.Error {
bucketsConfigPath, err := getBucketsConfigPath()
if err != nil {
return err
}
if e := os.MkdirAll(bucketsConfigPath, 0700); e != nil {
return probe.NewError(e)
}
return nil
}
// getBucketConfigPath - get bucket config path.
func getBucketConfigPath(bucket string) (string, *probe.Error) {
bucketsConfigPath, err := getBucketsConfigPath()
if err != nil {
return "", err.Trace()
}
return filepath.Join(bucketsConfigPath, bucket), nil
}
// createBucketConfigPath - create bucket config directory.
func createBucketConfigPath(bucket string) *probe.Error {
bucketConfigPath, err := getBucketConfigPath(bucket)
if err != nil {
return err
}
if e := os.MkdirAll(bucketConfigPath, 0700); e != nil {
return probe.NewError(e)
}
return nil
}
// readBucketPolicy - read bucket policy.
func readBucketPolicy(bucket string) ([]byte, *probe.Error) {
// Verify bucket is valid.
fs: Break fs package to top-level and introduce ObjectAPI interface. ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
9 years ago
if !IsValidBucketName(bucket) {
return nil, probe.NewError(BucketNameInvalid{Bucket: bucket})
}
bucketConfigPath, err := getBucketConfigPath(bucket)
if err != nil {
return nil, err.Trace()
}
// Get policy file.
bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
if _, e := os.Stat(bucketPolicyFile); e != nil {
if os.IsNotExist(e) {
fs: Break fs package to top-level and introduce ObjectAPI interface. ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
9 years ago
return nil, probe.NewError(BucketPolicyNotFound{Bucket: bucket})
}
return nil, probe.NewError(e)
}
accessPolicyBytes, e := ioutil.ReadFile(bucketPolicyFile)
if e != nil {
return nil, probe.NewError(e)
}
return accessPolicyBytes, nil
}
// removeBucketPolicy - remove bucket policy.
func removeBucketPolicy(bucket string) *probe.Error {
// Verify bucket is valid.
fs: Break fs package to top-level and introduce ObjectAPI interface. ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
9 years ago
if !IsValidBucketName(bucket) {
return probe.NewError(BucketNameInvalid{Bucket: bucket})
}
bucketConfigPath, err := getBucketConfigPath(bucket)
if err != nil {
return err.Trace(bucket)
}
// Get policy file.
bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
if _, e := os.Stat(bucketPolicyFile); e != nil {
if os.IsNotExist(e) {
fs: Break fs package to top-level and introduce ObjectAPI interface. ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
9 years ago
return probe.NewError(BucketPolicyNotFound{Bucket: bucket})
}
return probe.NewError(e)
}
return nil
}
// writeBucketPolicy - save bucket policy.
func writeBucketPolicy(bucket string, accessPolicyBytes []byte) *probe.Error {
// Verify if bucket path legal
fs: Break fs package to top-level and introduce ObjectAPI interface. ObjectAPI interface brings in changes needed for XL ObjectAPI layer. The new interface for any ObjectAPI layer is as below ``` // ObjectAPI interface. type ObjectAPI interface { // Bucket resource API. DeleteBucket(bucket string) *probe.Error ListBuckets() ([]BucketInfo, *probe.Error) MakeBucket(bucket string) *probe.Error GetBucketInfo(bucket string) (BucketInfo, *probe.Error) // Bucket query API. ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsResult, *probe.Error) ListMultipartUploads(bucket string, resources BucketMultipartResourcesMetadata) (BucketMultipartResourcesMetadata, *probe.Error) // Object resource API. GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) DeleteObject(bucket, object string) *probe.Error // Object query API. NewMultipartUpload(bucket, object string) (string, *probe.Error) PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) ListObjectParts(bucket, object string, resources ObjectResourcesMetadata) (ObjectResourcesMetadata, *probe.Error) CompleteMultipartUpload(bucket string, object string, uploadID string, parts []CompletePart) (ObjectInfo, *probe.Error) AbortMultipartUpload(bucket, object, uploadID string) *probe.Error } ```
9 years ago
if !IsValidBucketName(bucket) {
return probe.NewError(BucketNameInvalid{Bucket: bucket})
}
// Create bucket config path.
if err := createBucketConfigPath(bucket); err != nil {
return err.Trace()
}
bucketConfigPath, err := getBucketConfigPath(bucket)
if err != nil {
return err.Trace()
}
// Get policy file.
bucketPolicyFile := filepath.Join(bucketConfigPath, "access-policy.json")
if _, e := os.Stat(bucketPolicyFile); e != nil {
if !os.IsNotExist(e) {
return probe.NewError(e)
}
}
// Write bucket policy.
if e := ioutil.WriteFile(bucketPolicyFile, accessPolicyBytes, 0600); e != nil {
return probe.NewError(e)
}
return nil
}