mirror of
https://github.com/Luzifer/nginx-sso.git
synced 2024-12-21 05:11:17 +00:00
135 lines
3.8 KiB
Go
135 lines
3.8 KiB
Go
/*
|
|
Copyright 2016 Google LLC
|
|
|
|
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 testutil
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"net"
|
|
"regexp"
|
|
"strconv"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
)
|
|
|
|
// A Server is an in-process gRPC server, listening on a system-chosen port on
|
|
// the local loopback interface. Servers are for testing only and are not
|
|
// intended to be used in production code.
|
|
//
|
|
// To create a server, make a new Server, register your handlers, then call
|
|
// Start:
|
|
//
|
|
// srv, err := NewServer()
|
|
// ...
|
|
// mypb.RegisterMyServiceServer(srv.Gsrv, &myHandler)
|
|
// ....
|
|
// srv.Start()
|
|
//
|
|
// Clients should connect to the server with no security:
|
|
//
|
|
// conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure())
|
|
// ...
|
|
type Server struct {
|
|
Addr string
|
|
Port int
|
|
l net.Listener
|
|
Gsrv *grpc.Server
|
|
}
|
|
|
|
// NewServer creates a new Server. The Server will be listening for gRPC connections
|
|
// at the address named by the Addr field, without TLS.
|
|
func NewServer(opts ...grpc.ServerOption) (*Server, error) {
|
|
return NewServerWithPort(0, opts...)
|
|
}
|
|
|
|
// NewServerWithPort creates a new Server at a specific port. The Server will be listening
|
|
// for gRPC connections at the address named by the Addr field, without TLS.
|
|
func NewServerWithPort(port int, opts ...grpc.ServerOption) (*Server, error) {
|
|
l, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", port))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
s := &Server{
|
|
Addr: l.Addr().String(),
|
|
Port: parsePort(l.Addr().String()),
|
|
l: l,
|
|
Gsrv: grpc.NewServer(opts...),
|
|
}
|
|
return s, nil
|
|
}
|
|
|
|
// Start causes the server to start accepting incoming connections.
|
|
// Call Start after registering handlers.
|
|
func (s *Server) Start() {
|
|
go func() {
|
|
if err := s.Gsrv.Serve(s.l); err != nil {
|
|
log.Printf("testutil.Server.Start: %v", err)
|
|
}
|
|
}()
|
|
}
|
|
|
|
// Close shuts down the server.
|
|
func (s *Server) Close() {
|
|
s.Gsrv.Stop()
|
|
s.l.Close()
|
|
}
|
|
|
|
// PageBounds converts an incoming page size and token from an RPC request into
|
|
// slice bounds and the outgoing next-page token.
|
|
//
|
|
// PageBounds assumes that the complete, unpaginated list of items exists as a
|
|
// single slice. In addition to the page size and token, PageBounds needs the
|
|
// length of that slice.
|
|
//
|
|
// PageBounds's first two return values should be used to construct a sub-slice of
|
|
// the complete, unpaginated slice. E.g. if the complete slice is s, then
|
|
// s[from:to] is the desired page. Its third return value should be set as the
|
|
// NextPageToken field of the RPC response.
|
|
func PageBounds(pageSize int, pageToken string, length int) (from, to int, nextPageToken string, err error) {
|
|
from, to = 0, length
|
|
if pageToken != "" {
|
|
from, err = strconv.Atoi(pageToken)
|
|
if err != nil {
|
|
return 0, 0, "", status.Errorf(codes.InvalidArgument, "bad page token: %v", err)
|
|
}
|
|
if from >= length {
|
|
return length, length, "", nil
|
|
}
|
|
}
|
|
if pageSize > 0 && from+pageSize < length {
|
|
to = from + pageSize
|
|
nextPageToken = strconv.Itoa(to)
|
|
}
|
|
return from, to, nextPageToken, nil
|
|
}
|
|
|
|
var portParser = regexp.MustCompile(`:[0-9]+`)
|
|
|
|
func parsePort(addr string) int {
|
|
res := portParser.FindAllString(addr, -1)
|
|
if len(res) == 0 {
|
|
panic(fmt.Errorf("parsePort: found no numbers in %s", addr))
|
|
}
|
|
stringPort := res[0][1:] // strip the :
|
|
p, err := strconv.ParseInt(stringPort, 10, 32)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return int(p)
|
|
}
|