mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-11-27 04:11:03 +00:00
107 lines
2.7 KiB
Go
107 lines
2.7 KiB
Go
// Copyright 2023 Woodpecker 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.
|
|
|
|
package grpc
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/metadata"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
type StreamContextWrapper interface {
|
|
grpc.ServerStream
|
|
SetContext(context.Context)
|
|
}
|
|
|
|
type wrapper struct {
|
|
grpc.ServerStream
|
|
ctx context.Context
|
|
}
|
|
|
|
func (w *wrapper) Context() context.Context {
|
|
return w.ctx
|
|
}
|
|
|
|
func (w *wrapper) SetContext(ctx context.Context) {
|
|
w.ctx = ctx
|
|
}
|
|
|
|
func newStreamContextWrapper(inner grpc.ServerStream) StreamContextWrapper {
|
|
ctx := inner.Context()
|
|
return &wrapper{
|
|
inner,
|
|
ctx,
|
|
}
|
|
}
|
|
|
|
type Authorizer struct {
|
|
jwtManager *JWTManager
|
|
}
|
|
|
|
func NewAuthorizer(jwtManager *JWTManager) *Authorizer {
|
|
return &Authorizer{jwtManager: jwtManager}
|
|
}
|
|
|
|
func (a *Authorizer) StreamInterceptor(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
|
|
_stream := newStreamContextWrapper(stream)
|
|
|
|
newCtx, err := a.authorize(stream.Context(), info.FullMethod)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_stream.SetContext(newCtx)
|
|
|
|
return handler(srv, _stream)
|
|
}
|
|
|
|
func (a *Authorizer) UnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
|
|
newCtx, err := a.authorize(ctx, info.FullMethod)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return handler(newCtx, req)
|
|
}
|
|
|
|
func (a *Authorizer) authorize(ctx context.Context, fullMethod string) (context.Context, error) {
|
|
// bypass auth for token endpoint
|
|
if fullMethod == "/proto.WoodpeckerAuth/Auth" {
|
|
return ctx, nil
|
|
}
|
|
|
|
md, ok := metadata.FromIncomingContext(ctx)
|
|
if !ok {
|
|
return ctx, status.Errorf(codes.Unauthenticated, "metadata is not provided")
|
|
}
|
|
|
|
values := md["token"]
|
|
if len(values) == 0 {
|
|
return ctx, status.Errorf(codes.Unauthenticated, "token is not provided")
|
|
}
|
|
|
|
accessToken := values[0]
|
|
claims, err := a.jwtManager.Verify(accessToken)
|
|
if err != nil {
|
|
return ctx, status.Errorf(codes.Unauthenticated, "access token is invalid: %v", err)
|
|
}
|
|
|
|
md.Append("agent_id", fmt.Sprintf("%d", claims.AgentID))
|
|
|
|
return metadata.NewIncomingContext(ctx, md), nil
|
|
}
|