mirror of https://github.com/status-im/op-geth.git
128 lines
2.1 KiB
Go
128 lines
2.1 KiB
Go
package websocket
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import (
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"net/http"
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"github.com/ethereum/go-ethereum/ethlog"
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ws "code.google.com/p/go.net/websocket"
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)
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var logger = ethlog.NewLogger("WS")
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// Chat server.
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type Server struct {
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httpServ string
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pattern string
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messages []*Message
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clients map[int]*Client
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addCh chan *Client
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delCh chan *Client
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sendAllCh chan string
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doneCh chan bool
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errCh chan error
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msgFunc MsgFunc
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}
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// Create new chat server.
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func NewServer(pattern, httpServ string) *Server {
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clients := make(map[int]*Client)
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addCh := make(chan *Client)
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delCh := make(chan *Client)
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sendAllCh := make(chan string)
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doneCh := make(chan bool)
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errCh := make(chan error)
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return &Server{
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httpServ,
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pattern,
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nil,
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clients,
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addCh,
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delCh,
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sendAllCh,
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doneCh,
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errCh,
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nil,
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}
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}
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func (s *Server) Add(c *Client) {
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s.addCh <- c
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}
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func (s *Server) Del(c *Client) {
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s.delCh <- c
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}
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func (s *Server) SendAll(msg string) {
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s.sendAllCh <- msg
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}
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func (s *Server) Done() {
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s.doneCh <- true
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}
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func (s *Server) Err(err error) {
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s.errCh <- err
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}
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func (s *Server) servHTTP() {
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logger.Debugln("Serving http", s.httpServ)
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err := http.ListenAndServe(s.httpServ, nil)
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logger.Warnln(err)
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}
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func (s *Server) MessageFunc(f MsgFunc) {
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s.msgFunc = f
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}
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// Listen and serve.
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// It serves client connection and broadcast request.
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func (s *Server) Listen() {
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logger.Debugln("Listening server...")
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// ws handler
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onConnected := func(ws *ws.Conn) {
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defer func() {
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err := ws.Close()
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if err != nil {
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s.errCh <- err
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}
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}()
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client := NewClient(ws, s)
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client.onMessage = s.msgFunc
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s.Add(client)
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client.Listen()
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}
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// Disable Origin check. Request don't need to come necessarily from origin.
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http.HandleFunc(s.pattern, func(w http.ResponseWriter, req *http.Request) {
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s := ws.Server{Handler: ws.Handler(onConnected)}
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s.ServeHTTP(w, req)
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})
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logger.Debugln("Created handler")
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go s.servHTTP()
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for {
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select {
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// Add new a client
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case c := <-s.addCh:
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s.clients[c.id] = c
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// del a client
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case c := <-s.delCh:
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delete(s.clients, c.id)
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case err := <-s.errCh:
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logger.Debugln("Error:", err.Error())
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case <-s.doneCh:
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return
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}
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}
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}
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