Add Server Start Stop

Adds start and stop server to the /hl2 deathmatch server
runs executable directly.

Signed-off-by: Pratyush Desai <pratyush.desai@liberta.casa>

.gitignore

@@ -0,0 +1 @@
+notes/

README.md

@@ -2,9 +2,18 @@
 
 ## Skeleton
 
-* Stick with HL2 and HL2DM
+* Stick with  HL2DM
 * Set up routing
 * GS Lifecycle Management and Statistics
 * Concurrency - manage simultaneously events and schedule tasks.
-* File Handling - configs, logs, backups and export config server
+* File Handling - configs, logs, backups and export server configs.
 * TODO: Add auth and db stuff later. For persistent configurations.
+
+
+## Status
+
+* running srcds_run directly for the moment.
+* file permissions are not being handled.
+* ideal systemd integration?
+* min add screen/tmux.
+* routing : index -> /hl2 -> ok/err response to start & stop

main.go

@@ -5,8 +5,45 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"os/exec"
+	"syscall"
 )
 
+var serverCmd *exec.Cmd
+
+func startServer(w http.ResponseWriter, r *http.Request) {
+	if serverCmd != nil {
+		fmt.Fprintln(w, "Server is already running.")
+		return
+	}
+
+	serverCmd = exec.Command("/opt/hl2dm/Steam/hl2dm/srcds_run", "-game", "hl2mp", "+map", "dm_lockdown", "+maxplayers", "16")
+	serverCmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true} // Allow stopping the entire process group
+
+	if err := serverCmd.Start(); err != nil {
+		log.Println("Error starting server:", err)
+		http.Error(w, "Failed to start server", http.StatusInternalServerError)
+		return
+	}
+
+	fmt.Fprintln(w, "Server started with PID", serverCmd.Process.Pid)
+}
+
+func stopServer(w http.ResponseWriter, r *http.Request) {
+	if serverCmd == nil {
+		fmt.Fprintln(w, "Server is not running.")
+		return
+	}
+
+	if err := syscall.Kill(-serverCmd.Process.Pid, syscall.SIGKILL); err != nil {
+		log.Println("Error stopping server:", err)
+		http.Error(w, "Failed to stop server", http.StatusInternalServerError)
+		return
+	}
+
+	serverCmd = nil
+	fmt.Fprintln(w, "Server stopped.")
+}
 func main() {
 	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./static"))))
 
@@ -14,6 +51,9 @@ func main() {
 	http.HandleFunc("/", homeHandler)
 	http.HandleFunc("/hl2", hl2Handler)
 	http.HandleFunc("/quake", quakeHandler)
+	http.HandleFunc("/start", startServer)
+	http.HandleFunc("/stop", stopServer)
+	// http.HandleFunc("/restart", restartServer)
 
 	// Start the server
 	fmt.Println("Server running on http://localhost:8080")

templates/hl2.xhtml

@@ -12,6 +12,15 @@
         <div class="section">
             <h2>Multiplayer Server</h2>
             <p>Manage or join the multiplayer servers here.</p>
+            <form action="/start" method="post">
+                <button type="submit">Start Server</button>
+            </form>
+            <form action="/stop" method="post">
+                <button type="submit">Stop Server</button>
+            </form>
+            <form action="/restart" method="post">
+                <button type="submit">Restart Server</button>
+            </form>
         </div>
         <div class="section">
             <h2>Coop</h2>