Added a way to edit a server's properties - right now it only edits the server-port property

src/Controllers/ServerController.php

@@ -117,4 +117,36 @@ class ServerController extends Controller {
       ->withStatus(302);
   }
 
+  // GET edit server properties route
+  public function getEdit(Request $request, Response $response, $args): Response {
+    $config = $this->get('config');
+    $serverDir = join('/', array($config->get('server_directory'), $args['serverName']));
+
+    $server = new Server($serverDir);
+    $data = array(
+      'serverName' => $args['serverName'],
+      'serverPort' => $server->getProperty('server-port'),
+    );
+
+    $view = Twig::fromRequest($request);
+    return $view->render($response, 'edit.twig', $data);
+  }
+
+  // POST edit server properties route
+  public function postEdit(Request $request, Response $response, $args): Response {
+    // set up the POST parameters and grab our config
+    $params = (array)$request->getParsedBody();
+    $config = $this->get('config');
+    $serverDir = join('/', array($config->get('server_directory'), $args['serverName']));
+
+    // create server object and save new value
+    $server = new Server($serverDir);
+    $server->updateProperty('server-port', $params['serverPort']);
+
+    // redirect the user back to the home page
+    return $response
+      ->withHeader('Location', '/')
+      ->withStatus(302);
+  }
+
 }

src/Minecraft/Server.php

@@ -84,11 +84,16 @@ class Server {
     return -1;
   }
 
-  // get parameter from server properties file
+  // get property from server properties file
   public function getProperty(string $param) {
     return $this->properties->get($param);
   }
 
+  // update property in server properties file
+  public function updateProperty(string $paramName, $paramValue) {
+    $this->properties->update($paramName, $paramValue);
+  }
+
   // getters & setters
   public function getDirectory(): string {
     return $this->rootDir;

src/Minecraft/ServerConfig.php

@@ -4,9 +4,13 @@ namespace BitGoblin\MCST\Minecraft;
 
 class ServerConfig {
 
+  // path to the server.properties file
+  protected string $propertiesFile;
+  // loaded properties
   protected array $config;
 
   public function __construct($propertiesFile) {
+    $this->propertiesFile = $propertiesFile; // save the properties file
     $this->config = array(); // initialize array
 
     // parse config file
@@ -15,7 +19,7 @@ class ServerConfig {
       $line = fgets($fh);
       $eqpos = strpos($line, '=');
       $parameterName = substr($line, 0, $eqpos);
-      $parameterValue = substr($line, ($eqpos + 1));
+      $parameterValue = trim(substr($line, ($eqpos + 1)));
 
       // assign parameter values to the config array
       $this->config[$parameterName] = $parameterValue;
@@ -26,4 +30,35 @@ class ServerConfig {
     return $this->config[$param];
   }
 
+  public function update(string $paramName, $paramValue) {
+    // update the local variable value
+    $this->config[$paramName] = $paramValue;
+
+    // update and save the server.properties file
+    $newFileContent = '';
+    $fh = fopen($this->propertiesFile, 'r+');
+    while (!feof($fh)) {
+      $line = fgets($fh);
+
+      if (!str_starts_with($line, '#')) {
+        $eqpos = strpos($line, '=');
+        $parameterName = substr($line, 0, $eqpos);
+        $parameterValue = substr($line, ($eqpos + 1));
+
+        // use the new value if it's being updated
+        if ($parameterName == $paramName) {
+          $parameterValue = $paramValue . "\n";
+        }
+
+        $newFileContent .= $parameterName . '=' . $parameterValue;
+      } else {
+        $newFileContent .= $line;
+      }
+    }
+
+    // save the new properties file
+    file_put_contents($this->propertiesFile, $newFileContent);
+    fclose($fh);
+  }
+
 }

src/routes.php

@@ -21,3 +21,8 @@ $app->get('/server/{serverName}/status', '\\BitGoblin\\MCST\\Controllers\\Server
 $app->get('/server/{serverName}/start', '\\BitGoblin\\MCST\\Controllers\\ServerController:getStart')->setName('server.start');
 // server stop route
 $app->get('/server/{serverName}/stop', '\\BitGoblin\\MCST\\Controllers\\ServerController:getStop')->setName('server.stop');
+
+// edit GET route - this page allows a user to edit a server's properties
+$app->get('/server/{serverName}/edit', '\\BitGoblin\\MCST\\Controllers\\ServerController:getEdit')->setName('edit');
+// edit POST route - processes the edits a server's properties file
+$app->post('/server/{serverName}/edit', '\\BitGoblin\\MCST\\Controllers\\ServerController:postEdit');