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add http2 listener for grpc proxy (#315)
* split listener service interface * split listener service interface * update * update * update * update * add integration test * add integration test * update * fix golangci-lint * update * fix reviewdog * fix reviewdog * fix reviewdog * update for comment * rename to NetworkFilterChain * update Co-authored-by: Mark4z <36187602+mark4z@users.noreply.github.com> Co-authored-by: Xin.Zh <dragoncharlie@foxmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) 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 grpc | ||
|
|
||
| import ( | ||
| "net/http" | ||
| ) | ||
|
|
||
| import ( | ||
| "golang.org/x/net/http2" | ||
| ) | ||
|
|
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| type HttpForwarder struct { | ||
| transport *http2.Transport | ||
| } | ||
|
|
||
| func (hf *HttpForwarder) Forward(r *http.Request) (*http.Response, error) { | ||
| return hf.transport.RoundTrip(r) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) 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 grpc | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "encoding/json" | ||
| "io/ioutil" | ||
| "net" | ||
| stdHttp "net/http" | ||
| ) | ||
|
|
||
| import ( | ||
| "golang.org/x/net/http2" | ||
| ) | ||
|
|
||
| import ( | ||
| "github.com/apache/dubbo-go-pixiu/pkg/common/constant" | ||
| router2 "github.com/apache/dubbo-go-pixiu/pkg/common/router" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/context/http" | ||
| pch "github.com/apache/dubbo-go-pixiu/pkg/context/http" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/logger" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/model" | ||
| "github.com/apache/dubbo-go-pixiu/pkg/server" | ||
| ) | ||
|
|
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| // GrpcConnectionManager network filter for grpc | ||
| type GrpcConnectionManager struct { | ||
| config *model.GRPCConnectionManagerConfig | ||
| routerCoordinator *router2.RouterCoordinator | ||
| } | ||
|
|
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| // CreateGrpcConnectionManager create grpc connection manager | ||
| func CreateGrpcConnectionManager(hcmc *model.GRPCConnectionManagerConfig, bs *model.Bootstrap) *GrpcConnectionManager { | ||
| hcm := &GrpcConnectionManager{config: hcmc} | ||
| hcm.routerCoordinator = router2.CreateRouterCoordinator(&hcmc.RouteConfig) | ||
| return hcm | ||
| } | ||
|
|
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| // OnData receive data from listener | ||
| func (gcm *GrpcConnectionManager) OnData(hc *pch.HttpContext) error { | ||
| panic("grpc connection manager OnData function shouldn't be called") | ||
| } | ||
|
|
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| // ServeHTTP handle request and response | ||
| func (gcm *GrpcConnectionManager) ServeHTTP(w stdHttp.ResponseWriter, r *stdHttp.Request) { | ||
|
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| ra, err := gcm.routerCoordinator.RouteByPathAndName(r.RequestURI, r.Method) | ||
| if err != nil { | ||
| logger.Info("GrpcConnectionManager can't find route %v", err) | ||
| w.WriteHeader(stdHttp.StatusNotFound) | ||
| if _, err := w.Write(constant.Default404Body); err != nil { | ||
| logger.Warnf("WriteWithStatus error %v", err) | ||
| } | ||
| } | ||
|
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| logger.Debugf("[dubbo-go-pixiu] client choose endpoint from cluster :%v", ra.Cluster) | ||
|
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| clusterName := ra.Cluster | ||
| clusterManager := server.GetClusterManager() | ||
| endpoint := clusterManager.PickEndpoint(clusterName) | ||
| if endpoint == nil { | ||
| bt, _ := json.Marshal(http.ErrResponse{Message: "cluster not found endpoint"}) | ||
| w.WriteHeader(stdHttp.StatusServiceUnavailable) | ||
| w.Write(bt) | ||
| return | ||
| } | ||
|
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| newReq := r.Clone(context.Background()) | ||
| newReq.URL.Scheme = "http" | ||
| newReq.URL.Host = endpoint.Address.GetAddress() | ||
|
|
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| // todo: need cache? | ||
| forwarder := gcm.newHttpForwarder() | ||
| res, err := forwarder.Forward(newReq) | ||
|
|
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| if err != nil { | ||
| logger.Info("GrpcConnectionManager forward request error %v", err) | ||
| bt, _ := json.Marshal(http.ErrResponse{Message: "pixiu forward error"}) | ||
| w.WriteHeader(stdHttp.StatusServiceUnavailable) | ||
| w.Write(bt) | ||
| return | ||
| } | ||
|
|
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| if err := gcm.response(w, res); err != nil { | ||
| logger.Info("GrpcConnectionManager response error %v", err) | ||
| } | ||
| } | ||
|
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| func (gcm *GrpcConnectionManager) response(w stdHttp.ResponseWriter, res *stdHttp.Response) error { | ||
| defer res.Body.Close() | ||
|
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| copyHeader(w.Header(), res.Header) | ||
| w.WriteHeader(res.StatusCode) | ||
|
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| bytes, err := ioutil.ReadAll(res.Body) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| w.Write(bytes) | ||
|
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| for k, vv := range res.Trailer { | ||
| k = stdHttp.TrailerPrefix + k | ||
| for _, v := range vv { | ||
| w.Header().Add(k, v) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
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| func (gcm *GrpcConnectionManager) newHttpForwarder() *HttpForwarder { | ||
| transport := &http2.Transport{ | ||
| DialTLS: func(network, addr string, _ *tls.Config) (net.Conn, error) { | ||
| return net.Dial(network, addr) | ||
| }, | ||
| AllowHTTP: true, | ||
| } | ||
| return &HttpForwarder{transport: transport} | ||
| } | ||
|
|
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| func copyHeader(dst, src stdHttp.Header) { | ||
| for k, vv := range src { | ||
| for _, v := range vv { | ||
| dst.Add(k, v) | ||
| } | ||
| } | ||
| } |
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