mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-02 11:59:00 +08:00
88 lines
3.8 KiB
Go
88 lines
3.8 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you 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 interceptor
|
|
|
|
import (
|
|
"context"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/metadata"
|
|
|
|
"github.com/milvus-io/milvus/pkg/util/merr"
|
|
"github.com/milvus-io/milvus/pkg/util/paramtable"
|
|
)
|
|
|
|
const ClusterKey = "Cluster"
|
|
|
|
// ClusterValidationUnaryServerInterceptor returns a new unary server interceptor that
|
|
// rejects the request if the client's cluster differs from that of the server.
|
|
// It is chiefly employed to tackle the `Cross-Cluster Routing` issue.
|
|
func ClusterValidationUnaryServerInterceptor() grpc.UnaryServerInterceptor {
|
|
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
|
|
md, ok := metadata.FromIncomingContext(ctx)
|
|
if !ok {
|
|
return handler(ctx, req)
|
|
}
|
|
clusters := md.Get(ClusterKey)
|
|
if len(clusters) == 0 {
|
|
return handler(ctx, req)
|
|
}
|
|
cluster := clusters[0]
|
|
if cluster != "" && cluster != paramtable.Get().CommonCfg.ClusterPrefix.GetValue() {
|
|
return nil, merr.WrapErrCrossClusterRouting(paramtable.Get().CommonCfg.ClusterPrefix.GetValue(), cluster)
|
|
}
|
|
return handler(ctx, req)
|
|
}
|
|
}
|
|
|
|
// ClusterValidationStreamServerInterceptor returns a new streaming server interceptor that
|
|
// rejects the request if the client's cluster differs from that of the server.
|
|
// It is chiefly employed to tackle the `Cross-Cluster Routing` issue.
|
|
func ClusterValidationStreamServerInterceptor() grpc.StreamServerInterceptor {
|
|
return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
|
md, ok := metadata.FromIncomingContext(ss.Context())
|
|
if !ok {
|
|
return handler(srv, ss)
|
|
}
|
|
clusters := md.Get(ClusterKey)
|
|
if len(clusters) == 0 {
|
|
return handler(srv, ss)
|
|
}
|
|
cluster := clusters[0]
|
|
if cluster != "" && cluster != paramtable.Get().CommonCfg.ClusterPrefix.GetValue() {
|
|
return merr.WrapErrCrossClusterRouting(paramtable.Get().CommonCfg.ClusterPrefix.GetValue(), cluster)
|
|
}
|
|
return handler(srv, ss)
|
|
}
|
|
}
|
|
|
|
// ClusterInjectionUnaryClientInterceptor returns a new unary client interceptor that injects `cluster` into outgoing context.
|
|
func ClusterInjectionUnaryClientInterceptor() grpc.UnaryClientInterceptor {
|
|
return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
|
|
ctx = metadata.AppendToOutgoingContext(ctx, ClusterKey, paramtable.Get().CommonCfg.ClusterPrefix.GetValue())
|
|
return invoker(ctx, method, req, reply, cc, opts...)
|
|
}
|
|
}
|
|
|
|
// ClusterInjectionStreamClientInterceptor returns a new streaming client interceptor that injects `cluster` into outgoing context.
|
|
func ClusterInjectionStreamClientInterceptor() grpc.StreamClientInterceptor {
|
|
return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
|
ctx = metadata.AppendToOutgoingContext(ctx, ClusterKey, paramtable.Get().CommonCfg.ClusterPrefix.GetValue())
|
|
return streamer(ctx, desc, cc, method, opts...)
|
|
}
|
|
}
|