58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net/http"
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"os"
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"strings"
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"github.com/gorilla/websocket"
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)
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const (
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WS_HOST = "0.0.0.0"
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WS_PORT = 5000
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)
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var Upgrader = websocket.Upgrader{
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CheckOrigin: func(r *http.Request) bool { return true },
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}
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func main() {
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http.HandleFunc("/", HandleWs)
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// if ./workspace/ directory does not exist, create it
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if _, err := os.Stat("./workspace/"); os.IsNotExist(err) {
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os.Mkdir("./workspace/", 0755)
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}
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addr := fmt.Sprintf("%s:%d", WS_HOST, WS_PORT)
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log.Println("Server started at", addr)
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log.Fatal(http.ListenAndServe(addr, nil))
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}
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func HandleWs(w http.ResponseWriter, r *http.Request) {
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c, err := Upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Print("upgrade:", err)
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return
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}
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defer c.Close()
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for {
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// get the first line of the message from the client
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_, message, err := c.ReadMessage()
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if err != nil {
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log.Println("read:", err)
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break
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}
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// print the message to the console
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log.Printf("recv: %s", message)
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// seperate message into chunks by newline
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msg := strings.Split(string(message), "\n")
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sendMessage := handleCase(msg[0], strings.Join(msg[1:], "\n"))
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// send the message back to the client
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err = c.WriteMessage(websocket.TextMessage, []byte(sendMessage.String()))
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}
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}
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