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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| * MIT License | ||
| * | ||
| * Copyright (c) 2022 Johan Brandhorst-Satzkorn | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
|
|
||
| // https://github.com/johanbrandhorst/connect-gateway-example | ||
|
|
||
| package api | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
| "strconv" | ||
|
|
||
| connect "github.com/bufbuild/connect-go" | ||
| grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap" | ||
| "github.com/grpc-ecosystem/grpc-gateway/v2/runtime" | ||
| "github.com/telekom/canary-bot/data" | ||
| h "github.com/telekom/canary-bot/helper" | ||
| apiv1 "github.com/telekom/canary-bot/proto/api/v1" | ||
| "github.com/telekom/canary-bot/proto/api/v1/apiv1connect" | ||
| "go.uber.org/zap" | ||
| "golang.org/x/net/http2" | ||
| "golang.org/x/net/http2/h2c" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
| "google.golang.org/protobuf/encoding/protojson" | ||
| ) | ||
|
|
||
| func StartApi(data data.Database, config *Configuration, log *zap.SugaredLogger) error { | ||
| a := &Api{ | ||
| data: data, | ||
| config: config, | ||
| log: log, | ||
| } | ||
|
|
||
| if config.DebugGrpc { | ||
| grpc_zap.ReplaceGrpcLoggerV2(log.Named("grpc").Desugar()) | ||
| } | ||
|
|
||
| var opts []grpc.DialOption | ||
|
|
||
| // TLS for http proxy server | ||
| tlsCredentials, err := h.LoadServerTLSCredentials( | ||
| config.ServerCertPath, | ||
| config.ServerKeyPath, | ||
| config.ServerCert, | ||
| config.ServerKey, | ||
| ) | ||
|
|
||
| if err != nil { | ||
| log.Warnw("Cannot load TLS server credentials - using insecure connection for incoming requests") | ||
| log.Debugw("Cannot load TLS credentials", "error", err.Error()) | ||
| } | ||
|
|
||
| // TLS for client connect from http proxy server to grpc server | ||
| // just load it if TLS is activated, not considered for edge-terminated TLS | ||
| var tlsClientCredentials credentials.TransportCredentials | ||
| if tlsCredentials != nil { | ||
| tlsClientCredentials, err = h.LoadClientTLSCredentials(config.CaCertPath, config.CaCert) | ||
|
|
||
| } | ||
|
|
||
| if err != nil { | ||
| log.Debugw("Cannot load TLS client credentials - starting insecure connection to grpc server") | ||
| opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials())) | ||
| } else { | ||
| opts = append(opts, grpc.WithTransportCredentials(tlsClientCredentials)) | ||
| } | ||
|
|
||
| addr := config.Address + ":" + strconv.FormatInt(config.Port, 10) | ||
| // Note: this will succeed asynchronously, once we've started the server below. | ||
| conn, err := grpc.DialContext( | ||
| context.Background(), | ||
| "dns:///"+addr, | ||
| opts..., | ||
| ) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to dial server: %w", err) | ||
| } | ||
|
|
||
| gwmux := runtime.NewServeMux( | ||
| runtime.WithMarshalerOption("*", &runtime.HTTPBodyMarshaler{ | ||
| Marshaler: &runtime.JSONPb{ | ||
| MarshalOptions: protojson.MarshalOptions{UseProtoNames: true}, | ||
| }, | ||
| }), | ||
| ) | ||
|
|
||
| err = apiv1.RegisterApiServiceHandler(context.Background(), gwmux, conn) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to register gateway: %w", err) | ||
| } | ||
|
|
||
| // Auth | ||
| interceptors := connect.WithInterceptors(a.NewAuthInterceptor()) | ||
|
|
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| mux := http.NewServeMux() | ||
| mux.Handle("/", getOpenAPIHandler()) | ||
| mux.Handle(apiv1connect.NewApiServiceHandler(a, interceptors)) | ||
| mux.Handle("/api/v1/", gwmux) | ||
| server := &http.Server{ | ||
| Addr: addr, | ||
| Handler: h2c.NewHandler(mux, &http2.Server{}), | ||
| } | ||
| log.Info("Serving Connect, gRPC-Gateway and OpenAPI Documentation on ", addr) | ||
|
|
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| // TLS ready | ||
| if tlsCredentials != nil { | ||
| server.TLSConfig = tlsCredentials | ||
| return server.ListenAndServeTLS("", "") | ||
| } | ||
|
|
||
| return server.ListenAndServe() | ||
| } |
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