2019-05-12 00:48:59 -05:00
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package main
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import "flag"
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import "io"
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import "log"
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import "net/http"
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2019-05-12 00:57:19 -05:00
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2019-05-12 00:48:59 -05:00
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import "github.com/gorilla/websocket"
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import "github.com/golang/protobuf/proto"
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import pb "git.wit.com/wit/witProtobuf"
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 4096,
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WriteBufferSize: 4096,
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EnableCompression: true,
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CheckOrigin: func(r *http.Request) bool {
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return true
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},
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}
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2019-05-12 14:19:15 -05:00
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func sendSampleProtobuf(conn *websocket.Conn) {
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2019-05-12 02:28:07 -05:00
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msg := pb.CreateSampleEvent()
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msg.Name = "test echo over gorilla websocket"
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data, _ := proto.Marshal(msg)
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err := conn.WriteMessage(websocket.BinaryMessage, data)
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if err != nil {
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log.Println("sendProtobuf() write:", err)
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}
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}
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2019-05-12 14:19:15 -05:00
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func sendProtobuf(conn *websocket.Conn, msg *pb.Event) {
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data, _ := proto.Marshal(msg)
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err := conn.WriteMessage(websocket.BinaryMessage, data)
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if err != nil {
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log.Println("sendProtobuf() write:", err)
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}
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}
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2019-05-12 00:57:19 -05:00
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func eventHandler(w http.ResponseWriter, r *http.Request) {
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2019-05-12 02:28:07 -05:00
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log.Println("echoHandler() START")
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2019-05-12 00:48:59 -05:00
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println("Upgrade:", err)
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return
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}
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defer conn.Close()
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for {
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mytype, message, err := conn.ReadMessage()
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if err != nil {
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log.Println("read:", err)
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return
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}
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if mytype == websocket.TextMessage {
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2019-05-12 00:57:19 -05:00
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log.Println("echoHandler() TextMessage mytype=", mytype)
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2019-05-12 00:48:59 -05:00
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}
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if mytype == websocket.BinaryMessage {
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2019-05-12 00:57:19 -05:00
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log.Println("echoHandler() BinaryMessage mytype=", mytype)
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2019-05-12 00:48:59 -05:00
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pdata := new(pb.Event)
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err = proto.Unmarshal(message, pdata)
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if (err != nil) {
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log.Printf("readConn() something fucked up happened in Unmarshal")
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}
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log.Printf("recv binary: %s", pdata)
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2019-05-12 01:07:22 -05:00
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if pdata.Type == pb.Event_MIGRATE {
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log.Printf("GOT MIGRATE")
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2019-05-12 14:19:15 -05:00
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e := oldmain()
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sendProtobuf(conn, e)
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2019-05-12 01:07:22 -05:00
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}
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2019-05-12 00:48:59 -05:00
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}
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}
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}
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func serveHome(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/" {
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http.Error(w, "Not found.", http.StatusNotFound)
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return
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}
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if r.Method != "GET" {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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io.WriteString(w, "<html><body>Echo Server</body></html>")
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}
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var addr = flag.String("addr", ":9000", "http service address")
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func main() {
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flag.Parse()
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http.HandleFunc("/", serveHome)
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2019-05-12 00:57:19 -05:00
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http.HandleFunc("/event", eventHandler)
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2019-05-12 00:48:59 -05:00
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log.Println("Starting http.ListenAndServe() on port 9000")
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err := http.ListenAndServe(*addr, nil)
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if err != nil {
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log.Fatal("ListenAndServe: ", err)
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}
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}
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