diff options
Diffstat (limited to 'vendor/github.com/gorilla/websocket/examples')
7 files changed, 213 insertions, 157 deletions
diff --git a/vendor/github.com/gorilla/websocket/examples/autobahn/server.go b/vendor/github.com/gorilla/websocket/examples/autobahn/server.go index d96ac84d..3db880f9 100644 --- a/vendor/github.com/gorilla/websocket/examples/autobahn/server.go +++ b/vendor/github.com/gorilla/websocket/examples/autobahn/server.go @@ -8,17 +8,19 @@ package main import ( "errors" "flag" - "github.com/gorilla/websocket" "io" "log" "net/http" "time" "unicode/utf8" + + "github.com/gorilla/websocket" ) var upgrader = websocket.Upgrader{ - ReadBufferSize: 4096, - WriteBufferSize: 4096, + ReadBufferSize: 4096, + WriteBufferSize: 4096, + EnableCompression: true, CheckOrigin: func(r *http.Request) bool { return true }, @@ -83,7 +85,7 @@ func echoCopyFull(w http.ResponseWriter, r *http.Request) { // echoReadAll echoes messages from the client by reading the entire message // with ioutil.ReadAll. -func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) { +func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage, writePrepared bool) { conn, err := upgrader.Upgrade(w, r, nil) if err != nil { log.Println("Upgrade:", err) @@ -107,9 +109,21 @@ func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) { } } if writeMessage { - err = conn.WriteMessage(mt, b) - if err != nil { - log.Println("WriteMessage:", err) + if !writePrepared { + err = conn.WriteMessage(mt, b) + if err != nil { + log.Println("WriteMessage:", err) + } + } else { + pm, err := websocket.NewPreparedMessage(mt, b) + if err != nil { + log.Println("NewPreparedMessage:", err) + return + } + err = conn.WritePreparedMessage(pm) + if err != nil { + log.Println("WritePreparedMessage:", err) + } } } else { w, err := conn.NextWriter(mt) @@ -130,11 +144,15 @@ func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) { } func echoReadAllWriter(w http.ResponseWriter, r *http.Request) { - echoReadAll(w, r, false) + echoReadAll(w, r, false, false) } func echoReadAllWriteMessage(w http.ResponseWriter, r *http.Request) { - echoReadAll(w, r, true) + echoReadAll(w, r, true, false) +} + +func echoReadAllWritePreparedMessage(w http.ResponseWriter, r *http.Request) { + echoReadAll(w, r, true, true) } func serveHome(w http.ResponseWriter, r *http.Request) { @@ -159,6 +177,7 @@ func main() { http.HandleFunc("/f", echoCopyFull) http.HandleFunc("/r", echoReadAllWriter) http.HandleFunc("/m", echoReadAllWriteMessage) + http.HandleFunc("/p", echoReadAllWritePreparedMessage) err := http.ListenAndServe(*addr, nil) if err != nil { log.Fatal("ListenAndServe: ", err) diff --git a/vendor/github.com/gorilla/websocket/examples/chat/client.go b/vendor/github.com/gorilla/websocket/examples/chat/client.go new file mode 100644 index 00000000..26468477 --- /dev/null +++ b/vendor/github.com/gorilla/websocket/examples/chat/client.go @@ -0,0 +1,134 @@ +// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +import ( + "bytes" + "log" + "net/http" + "time" + + "github.com/gorilla/websocket" +) + +const ( + // Time allowed to write a message to the peer. + writeWait = 10 * time.Second + + // Time allowed to read the next pong message from the peer. + pongWait = 60 * time.Second + + // Send pings to peer with this period. Must be less than pongWait. + pingPeriod = (pongWait * 9) / 10 + + // Maximum message size allowed from peer. + maxMessageSize = 512 +) + +var ( + newline = []byte{'\n'} + space = []byte{' '} +) + +var upgrader = websocket.Upgrader{ + ReadBufferSize: 1024, + WriteBufferSize: 1024, +} + +// Client is a middleman between the websocket connection and the hub. +type Client struct { + hub *Hub + + // The websocket connection. + conn *websocket.Conn + + // Buffered channel of outbound messages. + send chan []byte +} + +// readPump pumps messages from the websocket connection to the hub. +// +// The application runs readPump in a per-connection goroutine. The application +// ensures that there is at most one reader on a connection by executing all +// reads from this goroutine. +func (c *Client) readPump() { + defer func() { + c.hub.unregister <- c + c.conn.Close() + }() + c.conn.SetReadLimit(maxMessageSize) + c.conn.SetReadDeadline(time.Now().Add(pongWait)) + c.conn.SetPongHandler(func(string) error { c.conn.SetReadDeadline(time.Now().Add(pongWait)); return nil }) + for { + _, message, err := c.conn.ReadMessage() + if err != nil { + if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) { + log.Printf("error: %v", err) + } + break + } + message = bytes.TrimSpace(bytes.Replace(message, newline, space, -1)) + c.hub.broadcast <- message + } +} + +// writePump pumps messages from the hub to the websocket connection. +// +// A goroutine running writePump is started for each connection. The +// application ensures that there is at most one writer to a connection by +// executing all writes from this goroutine. +func (c *Client) writePump() { + ticker := time.NewTicker(pingPeriod) + defer func() { + ticker.Stop() + c.conn.Close() + }() + for { + select { + case message, ok := <-c.send: + c.conn.SetWriteDeadline(time.Now().Add(writeWait)) + if !ok { + // The hub closed the channel. + c.conn.WriteMessage(websocket.CloseMessage, []byte{}) + return + } + + w, err := c.conn.NextWriter(websocket.TextMessage) + if err != nil { + return + } + w.Write(message) + + // Add queued chat messages to the current websocket message. + n := len(c.send) + for i := 0; i < n; i++ { + w.Write(newline) + w.Write(<-c.send) + } + + if err := w.Close(); err != nil { + return + } + case <-ticker.C: + c.conn.SetWriteDeadline(time.Now().Add(writeWait)) + if err := c.conn.WriteMessage(websocket.PingMessage, []byte{}); err != nil { + return + } + } + } +} + +// serveWs handles websocket requests from the peer. +func serveWs(hub *Hub, w http.ResponseWriter, r *http.Request) { + conn, err := upgrader.Upgrade(w, r, nil) + if err != nil { + log.Println(err) + return + } + client := &Client{hub: hub, conn: conn, send: make(chan []byte, 256)} + client.hub.register <- client + go client.writePump() + client.readPump() +} diff --git a/vendor/github.com/gorilla/websocket/examples/chat/conn.go b/vendor/github.com/gorilla/websocket/examples/chat/conn.go deleted file mode 100644 index 40fd38c2..00000000 --- a/vendor/github.com/gorilla/websocket/examples/chat/conn.go +++ /dev/null @@ -1,105 +0,0 @@ -// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package main - -import ( - "github.com/gorilla/websocket" - "log" - "net/http" - "time" -) - -const ( - // Time allowed to write a message to the peer. - writeWait = 10 * time.Second - - // Time allowed to read the next pong message from the peer. - pongWait = 60 * time.Second - - // Send pings to peer with this period. Must be less than pongWait. - pingPeriod = (pongWait * 9) / 10 - - // Maximum message size allowed from peer. - maxMessageSize = 512 -) - -var upgrader = websocket.Upgrader{ - ReadBufferSize: 1024, - WriteBufferSize: 1024, -} - -// connection is an middleman between the websocket connection and the hub. -type connection struct { - // The websocket connection. - ws *websocket.Conn - - // Buffered channel of outbound messages. - send chan []byte -} - -// readPump pumps messages from the websocket connection to the hub. -func (c *connection) readPump() { - defer func() { - h.unregister <- c - c.ws.Close() - }() - c.ws.SetReadLimit(maxMessageSize) - c.ws.SetReadDeadline(time.Now().Add(pongWait)) - c.ws.SetPongHandler(func(string) error { c.ws.SetReadDeadline(time.Now().Add(pongWait)); return nil }) - for { - _, message, err := c.ws.ReadMessage() - if err != nil { - if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) { - log.Printf("error: %v", err) - } - break - } - h.broadcast <- message - } -} - -// write writes a message with the given message type and payload. -func (c *connection) write(mt int, payload []byte) error { - c.ws.SetWriteDeadline(time.Now().Add(writeWait)) - return c.ws.WriteMessage(mt, payload) -} - -// writePump pumps messages from the hub to the websocket connection. -func (c *connection) writePump() { - ticker := time.NewTicker(pingPeriod) - defer func() { - ticker.Stop() - c.ws.Close() - }() - for { - select { - case message, ok := <-c.send: - if !ok { - c.write(websocket.CloseMessage, []byte{}) - return - } - if err := c.write(websocket.TextMessage, message); err != nil { - return - } - case <-ticker.C: - if err := c.write(websocket.PingMessage, []byte{}); err != nil { - return - } - } - } -} - -// serveWs handles websocket requests from the peer. -func serveWs(w http.ResponseWriter, r *http.Request) { - ws, err := upgrader.Upgrade(w, r, nil) - if err != nil { - log.Println(err) - return - } - c := &connection{send: make(chan []byte, 256), ws: ws} - h.register <- c - go c.writePump() - c.readPump() -} diff --git a/vendor/github.com/gorilla/websocket/examples/chat/hub.go b/vendor/github.com/gorilla/websocket/examples/chat/hub.go index 449ba753..7f07ea07 100644 --- a/vendor/github.com/gorilla/websocket/examples/chat/hub.go +++ b/vendor/github.com/gorilla/websocket/examples/chat/hub.go @@ -4,46 +4,48 @@ package main -// hub maintains the set of active connections and broadcasts messages to the -// connections. -type hub struct { - // Registered connections. - connections map[*connection]bool +// hub maintains the set of active clients and broadcasts messages to the +// clients. +type Hub struct { + // Registered clients. + clients map[*Client]bool - // Inbound messages from the connections. + // Inbound messages from the clients. broadcast chan []byte - // Register requests from the connections. - register chan *connection + // Register requests from the clients. + register chan *Client - // Unregister requests from connections. - unregister chan *connection + // Unregister requests from clients. + unregister chan *Client } -var h = hub{ - broadcast: make(chan []byte), - register: make(chan *connection), - unregister: make(chan *connection), - connections: make(map[*connection]bool), +func newHub() *Hub { + return &Hub{ + broadcast: make(chan []byte), + register: make(chan *Client), + unregister: make(chan *Client), + clients: make(map[*Client]bool), + } } -func (h *hub) run() { +func (h *Hub) run() { for { select { - case c := <-h.register: - h.connections[c] = true - case c := <-h.unregister: - if _, ok := h.connections[c]; ok { - delete(h.connections, c) - close(c.send) + case client := <-h.register: + h.clients[client] = true + case client := <-h.unregister: + if _, ok := h.clients[client]; ok { + delete(h.clients, client) + close(client.send) } - case m := <-h.broadcast: - for c := range h.connections { + case message := <-h.broadcast: + for client := range h.clients { select { - case c.send <- m: + case client.send <- message: default: - close(c.send) - delete(h.connections, c) + close(client.send) + delete(h.clients, client) } } } diff --git a/vendor/github.com/gorilla/websocket/examples/chat/main.go b/vendor/github.com/gorilla/websocket/examples/chat/main.go index 3c4448d7..74615d59 100644 --- a/vendor/github.com/gorilla/websocket/examples/chat/main.go +++ b/vendor/github.com/gorilla/websocket/examples/chat/main.go @@ -8,13 +8,12 @@ import ( "flag" "log" "net/http" - "text/template" ) var addr = flag.String("addr", ":8080", "http service address") -var homeTempl = template.Must(template.ParseFiles("home.html")) func serveHome(w http.ResponseWriter, r *http.Request) { + log.Println(r.URL) if r.URL.Path != "/" { http.Error(w, "Not found", 404) return @@ -23,15 +22,17 @@ func serveHome(w http.ResponseWriter, r *http.Request) { http.Error(w, "Method not allowed", 405) return } - w.Header().Set("Content-Type", "text/html; charset=utf-8") - homeTempl.Execute(w, r.Host) + http.ServeFile(w, r, "home.html") } func main() { flag.Parse() - go h.run() + hub := newHub() + go hub.run() http.HandleFunc("/", serveHome) - http.HandleFunc("/ws", serveWs) + http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) { + serveWs(hub, w, r) + }) err := http.ListenAndServe(*addr, nil) if err != nil { log.Fatal("ListenAndServe: ", err) diff --git a/vendor/github.com/gorilla/websocket/examples/command/main.go b/vendor/github.com/gorilla/websocket/examples/command/main.go index f3f022ed..239c5c85 100644 --- a/vendor/github.com/gorilla/websocket/examples/command/main.go +++ b/vendor/github.com/gorilla/websocket/examples/command/main.go @@ -12,16 +12,14 @@ import ( "net/http" "os" "os/exec" - "text/template" "time" "github.com/gorilla/websocket" ) var ( - addr = flag.String("addr", "127.0.0.1:8080", "http service address") - cmdPath string - homeTempl = template.Must(template.ParseFiles("home.html")) + addr = flag.String("addr", "127.0.0.1:8080", "http service address") + cmdPath string ) const ( @@ -36,6 +34,9 @@ const ( // Send pings to peer with this period. Must be less than pongWait. pingPeriod = (pongWait * 9) / 10 + + // Time to wait before force close on connection. + closeGracePeriod = 10 * time.Second ) func pumpStdin(ws *websocket.Conn, w io.Writer) { @@ -57,19 +58,24 @@ func pumpStdin(ws *websocket.Conn, w io.Writer) { func pumpStdout(ws *websocket.Conn, r io.Reader, done chan struct{}) { defer func() { - ws.Close() - close(done) }() s := bufio.NewScanner(r) for s.Scan() { ws.SetWriteDeadline(time.Now().Add(writeWait)) if err := ws.WriteMessage(websocket.TextMessage, s.Bytes()); err != nil { + ws.Close() break } } if s.Err() != nil { log.Println("scan:", s.Err()) } + close(done) + + ws.SetWriteDeadline(time.Now().Add(writeWait)) + ws.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, "")) + time.Sleep(closeGracePeriod) + ws.Close() } func ping(ws *websocket.Conn, done chan struct{}) { @@ -168,8 +174,7 @@ func serveHome(w http.ResponseWriter, r *http.Request) { http.Error(w, "Method not allowed", 405) return } - w.Header().Set("Content-Type", "text/html; charset=utf-8") - homeTempl.Execute(w, r.Host) + http.ServeFile(w, r, "home.html") } func main() { diff --git a/vendor/github.com/gorilla/websocket/examples/filewatch/main.go b/vendor/github.com/gorilla/websocket/examples/filewatch/main.go index a2c7b85f..f5f9da5c 100644 --- a/vendor/github.com/gorilla/websocket/examples/filewatch/main.go +++ b/vendor/github.com/gorilla/websocket/examples/filewatch/main.go @@ -6,12 +6,12 @@ package main import ( "flag" + "html/template" "io/ioutil" "log" "net/http" "os" "strconv" - "text/template" "time" "github.com/gorilla/websocket" @@ -120,7 +120,7 @@ func serveWs(w http.ResponseWriter, r *http.Request) { } var lastMod time.Time - if n, err := strconv.ParseInt(r.FormValue("lastMod"), 16, 64); err != nil { + if n, err := strconv.ParseInt(r.FormValue("lastMod"), 16, 64); err == nil { lastMod = time.Unix(0, n) } |