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/*
* Minio Cloud Storage, (C) 2017 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 cmd
import (
"io"
router "github.com/gorilla/mux"
"github.com/minio/minio-go/pkg/policy"
)
// GatewayLayer - Interface to implement gateway mode.
type GatewayLayer interface {
ObjectLayer
MakeBucketWithLocation(bucket, location string) error
AnonGetObject(bucket, object string, startOffset int64, length int64, writer io.Writer) (err error)
AnonGetObjectInfo(bucket, object string) (objInfo ObjectInfo, err error)
AnonPutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string, sha256sum string) (ObjectInfo, error)
SetBucketPolicies(string, policy.BucketAccessPolicy) error
GetBucketPolicies(string) (policy.BucketAccessPolicy, error)
DeleteBucketPolicies(string) error
AnonListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (result ListObjectsInfo, err error)
AnonGetBucketInfo(bucket string) (bucketInfo BucketInfo, err error)
}
// Implements and provides http handlers for S3 API.
// Overrides GetObject HeadObject and Policy related handlers.
type gatewayAPIHandlers struct {
objectAPIHandlers
ObjectAPI func() GatewayLayer
}
// registerAPIRouter - registers S3 compatible APIs.
func registerGatewayAPIRouter(mux *router.Router, gw GatewayLayer) {
// Initialize API.
api := gatewayAPIHandlers{
ObjectAPI: func() GatewayLayer { return gw },
objectAPIHandlers: objectAPIHandlers{
ObjectAPI: newObjectLayerFn,
},
}
// API Router
apiRouter := mux.NewRoute().PathPrefix("/").Subrouter()
// Bucket router
bucket := apiRouter.PathPrefix("/{bucket}").Subrouter()
/// Object operations
// HeadObject
bucket.Methods("HEAD").Path("/{object:.+}").HandlerFunc(api.HeadObjectHandler)
// CopyObjectPart
bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(api.CopyObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// PutObjectPart
bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(api.PutObjectPartHandler).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// ListObjectPxarts
bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(api.ListObjectPartsHandler).Queries("uploadId", "{uploadId:.*}")
// CompleteMultipartUpload
bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(api.CompleteMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}")
// NewMultipartUpload
bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(api.NewMultipartUploadHandler).Queries("uploads", "")
// AbortMultipartUpload
bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(api.AbortMultipartUploadHandler).Queries("uploadId", "{uploadId:.*}")
// GetObject
bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(api.GetObjectHandler)
// CopyObject
bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(api.CopyObjectHandler)
// PutObject
bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(api.PutObjectHandler)
// DeleteObject
bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(api.DeleteObjectHandler)
/// Bucket operations
// GetBucketLocation
bucket.Methods("GET").HandlerFunc(api.GetBucketLocationHandler).Queries("location", "")
// GetBucketPolicy
bucket.Methods("GET").HandlerFunc(api.GetBucketPolicyHandler).Queries("policy", "")
// GetBucketNotification
bucket.Methods("GET").HandlerFunc(api.GetBucketNotificationHandler).Queries("notification", "")
// ListenBucketNotification
bucket.Methods("GET").HandlerFunc(api.ListenBucketNotificationHandler).Queries("events", "{events:.*}")
// ListMultipartUploads
bucket.Methods("GET").HandlerFunc(api.ListMultipartUploadsHandler).Queries("uploads", "")
// ListObjectsV2
bucket.Methods("GET").HandlerFunc(api.ListObjectsV2Handler).Queries("list-type", "2")
// ListObjectsV1 (Legacy)
bucket.Methods("GET").HandlerFunc(api.ListObjectsV1Handler)
// PutBucketPolicy
bucket.Methods("PUT").HandlerFunc(api.PutBucketPolicyHandler).Queries("policy", "")
// PutBucketNotification
bucket.Methods("PUT").HandlerFunc(api.PutBucketNotificationHandler).Queries("notification", "")
// PutBucket
bucket.Methods("PUT").HandlerFunc(api.PutBucketHandler)
// HeadBucket
bucket.Methods("HEAD").HandlerFunc(api.HeadBucketHandler)
// PostPolicy
bucket.Methods("POST").HeadersRegexp("Content-Type", "multipart/form-data*").HandlerFunc(api.PostPolicyBucketHandler)
// DeleteMultipleObjects
bucket.Methods("POST").HandlerFunc(api.DeleteMultipleObjectsHandler).Queries("delete", "")
// DeleteBucketPolicy
bucket.Methods("DELETE").HandlerFunc(api.DeleteBucketPolicyHandler).Queries("policy", "")
// DeleteBucket
bucket.Methods("DELETE").HandlerFunc(api.DeleteBucketHandler)
/// Root operation
// ListBuckets
apiRouter.Methods("GET").HandlerFunc(api.ListBucketsHandler)
}