Implement gRPC service for envoy ExtAuthz #4990
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| // Copyright 2024 The PipeCD Authors. | ||
| // | ||
| // 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. | ||
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| package grpcapi | ||
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| import ( | ||
| "context" | ||
| "errors" | ||
| "strings" | ||
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| "github.com/pipe-cd/pipecd/pkg/app/server/pipedverifier" | ||
| "github.com/pipe-cd/pipecd/pkg/rpc" | ||
| "github.com/pipe-cd/pipecd/pkg/rpc/rpcauth" | ||
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| authv3 "github.com/envoyproxy/go-control-plane/envoy/service/auth/v3" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/status" | ||
| ) | ||
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| var ( | ||
| _ authv3.AuthorizationServer = (*EnvoyAuthorizationServer)(nil) | ||
| _ rpc.Service = (*EnvoyAuthorizationServer)(nil) | ||
| ) | ||
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| type EnvoyAuthorizationServer struct { | ||
| authv3.UnimplementedAuthorizationServer | ||
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| verifier *pipedverifier.Verifier | ||
| } | ||
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| func NewEnvoyAuthorizationServer(verifier *pipedverifier.Verifier) *EnvoyAuthorizationServer { | ||
| return &EnvoyAuthorizationServer{ | ||
| verifier: verifier, | ||
| } | ||
| } | ||
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| // Register implements rpc.Service. | ||
| func (e *EnvoyAuthorizationServer) Register(server *grpc.Server) { | ||
| authv3.RegisterAuthorizationServer(server, e) | ||
| } | ||
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| // Check implements authv3.AuthorizationServer. | ||
| func (e *EnvoyAuthorizationServer) Check(ctx context.Context, request *authv3.CheckRequest) (*authv3.CheckResponse, error) { | ||
| a, ok := request.GetAttributes().GetRequest().GetHttp().GetHeaders()["authorization"] | ||
| if !ok { | ||
| return &authv3.CheckResponse{Status: status.New(codes.Unauthenticated, "missing authorization header").Proto()}, nil | ||
| } | ||
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| projectID, pipedID, pipedKey, err := e.parseAuthorizationHeader(a) | ||
| if err != nil { | ||
| return &authv3.CheckResponse{Status: status.New(codes.PermissionDenied, err.Error()).Proto()}, nil | ||
| } | ||
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| if err := e.verifier.Verify(ctx, projectID, pipedID, pipedKey); err != nil { | ||
| return &authv3.CheckResponse{Status: status.New(codes.PermissionDenied, err.Error()).Proto()}, nil | ||
| } | ||
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| return &authv3.CheckResponse{Status: status.New(codes.OK, "OK").Proto()}, nil | ||
| } | ||
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| func (e *EnvoyAuthorizationServer) parseAuthorizationHeader(header string) (string, string, string, error) { | ||
| if !strings.HasPrefix(header, "Bearer ") { | ||
| return "", "", "", errors.New("invalid authorization header") | ||
| } | ||
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| return rpcauth.ParsePipedToken(strings.TrimPrefix(header, "Bearer ")) | ||
| } | ||
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Please add the pipecd license header (refer other files)
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Thanks. I added this commit: 6ed9c7a.