60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"flag"
|
|
"fmt"
|
|
"log"
|
|
"net"
|
|
|
|
"github.com/go-gost/plugin/auth/proto"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/metadata"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
var (
|
|
port = flag.Int("port", 8000, "The server port")
|
|
)
|
|
|
|
type server struct {
|
|
proto.UnimplementedAuthenticatorServer
|
|
}
|
|
|
|
func (s *server) Authenticate(ctx context.Context, in *proto.AuthenticateRequest) (*proto.AuthenticateReply, error) {
|
|
token := s.getCredentials(ctx)
|
|
if token != "gost" {
|
|
return nil, status.Error(codes.Unauthenticated, codes.Unauthenticated.String())
|
|
}
|
|
|
|
reply := &proto.AuthenticateReply{}
|
|
if in.GetUsername() == "gost" && in.GetPassword() == "gost" {
|
|
reply.Ok = true
|
|
}
|
|
log.Printf("auth: %s, %s, %v", in.GetUsername(), in.GetPassword(), reply.Ok)
|
|
return reply, nil
|
|
}
|
|
|
|
func (s *server) getCredentials(ctx context.Context) string {
|
|
md, ok := metadata.FromIncomingContext(ctx)
|
|
if ok && len(md["token"]) > 0 {
|
|
return md["token"][0]
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *port))
|
|
if err != nil {
|
|
log.Fatalf("failed to listen: %v", err)
|
|
}
|
|
s := grpc.NewServer()
|
|
proto.RegisterAuthenticatorServer(s, &server{})
|
|
log.Printf("server listening at %v", lis.Addr())
|
|
if err := s.Serve(lis); err != nil {
|
|
log.Fatalf("failed to serve: %v", err)
|
|
}
|
|
}
|