fix: WireGuard client improvements

- Updated WireGuard client to use `wg-quick` instead of `sudo wg-quick`.
- Improved error handling in WireGuard client.
- Added `sudo` to `wg show` command for proper permissions.
- Updated example `wireguard.vsh` script to reflect changes.
- Added a new `wg0.conf` file for the WireGuard configuration.
- Resolved the issue where the script wasn't finding the configuration file.

Co-authored-by: mahmmoud.hassanein <mahmmoud.hassanein@gmail.com>

examples/develop/wireguard/wg0.conf

@@ -0,0 +1,8 @@
+[Interface]
+Address = 10.10.3.0/24
+PrivateKey = wDewSiri8jlaGnUDN6SwK7QhN082U7gfX27YMGILvVA=
+[Peer]
+PublicKey = 2JEGJQ8FbajdFk0fFs/881H/D3FRjwlUxvNDZFxDeWQ=
+AllowedIPs = 10.10.0.0/16, 100.64.0.0/16
+PersistentKeepalive = 25
+Endpoint = 185.206.122.31:3241

examples/develop/wireguard/wireguard.vsh

@@ -2,15 +2,12 @@
 
 import freeflowuniverse.herolib.clients.wireguard
 import time
-
-println('HIIII')
+import os
 
 // Create Wireguard client
 mut wg := wireguard.get()!
-println('Hello')
-config_file_path := '~/wg1.conf'
+config_file_path := '${os.dir(@FILE)}/wg0.conf'
 
-println('Before start')
 wg.start(config_file_path: config_file_path)!
 println('${config_file_path} is started')
 
@@ -19,7 +16,7 @@ time.sleep(time.second * 2)
 info := wg.show()!
 println('info: ${info}')
 
-config := wg.show_config(interface_name: 'wg1')!
+config := wg.show_config(interface_name: 'wg0')!
 println('config: ${config}')
 
 private_key := wg.generate_private_key()!
@@ -28,7 +25,5 @@ println('private_key: ${private_key}')
 public_key := wg.get_public_key(private_key: private_key)!
 println('public_key: ${public_key}')
 
-time.sleep(time.second * 2)
-
 wg.down(config_file_path: config_file_path)!
 println('${config_file_path} is down')

lib/clients/wireguard/client.v

@@ -30,7 +30,7 @@ pub mut:
 }
 
 pub fn (wg WireGuard) show() !WGShow {
-	cmd := 'wg show'
+	cmd := 'sudo wg show'
 	res := os.execute(cmd)
 	if res.exit_code != 0 {
 		return error('failed to execute show command due to: ${res.output}')
@@ -60,12 +60,11 @@ pub:
 }
 
 pub fn (wg WireGuard) start(args StartArgs) ! {
-	if os.exists(args.config_file_path) {
+	if !os.exists(args.config_file_path) {
 		return error('File ${args.config_file_path} does not exists.')
 	}
 
-	cmd := 'sudo wg-quick up ${args.config_file_path}'
-	println('cmd: ${cmd}')
+	cmd := 'wg-quick up ${args.config_file_path}'
 	res := os.execute(cmd)
 	if res.exit_code != 0 {
 		return error('failed to execute start command due to: ${res.output}')
@@ -79,11 +78,11 @@ pub:
 }
 
 pub fn (wg WireGuard) down(args DownArgs) ! {
-	if os.exists(args.config_file_path) {
+	if !os.exists(args.config_file_path) {
 		return error('File ${args.config_file_path} does not exists.')
 	}
 
-	cmd := 'sudo wg-quick down ${args.config_file_path}'
+	cmd := 'wg-quick down ${args.config_file_path}'
 	res := os.execute(cmd)
 	if res.exit_code != 0 {
 		return error('failed to execute down command due to: ${res.output}')

lib/clients/wireguard/wireguard_factory_.v

@@ -28,23 +28,17 @@ fn args_get(args_ ArgsGet) ArgsGet {
 }
 
 pub fn get(args_ ArgsGet) !&WireGuard {
-	println('Before the args get')
 	mut args := args_get(args_)
-	println('Before the bigger if')
 	if args.name !in wireguard_global {
-		println('Before the if connd')
 		if args.name == 'wireguard' {
-			println('Before saving')
 			if !config_exists(args) {
 				if default {
 					println('When saving')
 					config_save(args)!
 				}
 			}
-			println('When loading')
 			config_load(args)!
 		}
-		println('After all')
 	}
 	return wireguard_global[args.name] or {
 		println(wireguard_global)