Add cgui

cmd/cgui/main.go

@@ -0,0 +1,102 @@
+package main
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"log"
+	"net"
+	"net/url"
+	"os"
+
+	"git.qowevisa.me/Qowevisa/gotell/communication"
+	"git.qowevisa.me/Qowevisa/gotell/env"
+	"github.com/gorilla/websocket"
+)
+
+func main() {
+	loadingFileName := env.ServerFullchainFileName
+	cert, err := os.ReadFile(loadingFileName)
+	if err != nil {
+		log.Fatalf("client: load root cert: %s", err)
+	}
+	log.Printf("Certificate %s loaded successfully!\n", loadingFileName)
+	//
+	roots := x509.NewCertPool()
+	if ok := roots.AppendCertsFromPEM(cert); !ok {
+		log.Fatalf("client: failed to parse root certificate")
+	}
+
+	config := &tls.Config{
+		RootCAs: roots,
+	}
+
+	host, err := env.GetHost()
+	if err != nil {
+		log.Fatal(err)
+	}
+	port, err := env.GetPort()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	service := fmt.Sprintf("%s:%d", host, port)
+	conn, err := tls.Dial("tcp", service, config)
+	if err != nil {
+		log.Fatalf("client: dial: %s", err)
+	}
+	defer conn.Close()
+	log.Printf("client: connected to %s", service)
+
+	// Connect to the Electron.js application via WebSocket
+	u := url.URL{Scheme: "ws", Host: "localhost:8081", Path: "/ws"}
+	ws, _, err := websocket.DefaultDialer.Dial(u.String(), nil)
+	if err != nil {
+		log.Fatal("dial:", err)
+	}
+	defer ws.Close()
+
+	go readFromServer(conn, ws)
+	go readFromWebSocket(conn, ws)
+	select {}
+}
+
+func readFromServer(conn net.Conn, ws *websocket.Conn) {
+	buf := make([]byte, 512)
+	for {
+		n, err := conn.Read(buf)
+		if err != nil {
+			log.Printf("client: read: %s", err)
+			return
+		}
+		msg, err := communication.Decode(buf[:n])
+		if err != nil {
+			log.Printf("ERROR: %#v\n", err)
+			continue
+		}
+		if msg == nil {
+			continue
+		}
+		log.Printf("client: received message from server: %v", *msg)
+		ws.WriteJSON(*msg)
+	}
+}
+
+func readFromWebSocket(conn net.Conn, ws *websocket.Conn) {
+	for {
+		var msg communication.Message
+		err := ws.ReadJSON(&msg)
+		if err != nil {
+			log.Printf("WebSocket read error: %s", err)
+			return
+		}
+		log.Printf("client: received message from Electron: %v", msg)
+		encodedMsg, err := msg.Bytes()
+		if err != nil {
+			log.Printf("Encoding error: %s", err)
+			continue
+		}
+		conn.Write(encodedMsg)
+	}
+}
+