basic beta for themes

inc/config.php

@@ -137,6 +137,7 @@
 	$config['error']['invalidpost']		= 'That post doesn\'t exist…';
 	$config['error']['404']				= 'Page not found.';
 	$config['error']['modexists']		= 'That mod <a href="?/users/%d">already exists</a>!';
+	$config['error']['invalidtheme']	= 'That theme doesn\'t exist!';
 	
 	// How many reports you can create in the same request.
 	$config['report_limit']	= 2;

inc/functions.php

@@ -96,6 +96,9 @@
 	function loadThemeConfig($_theme) {
 		global $config;
 		
+		if(!file_exists($config['dir']['homepage'] . '/' . $_theme . '/theme.php'))
+			return false;
+		
 		// Load theme information into $theme
 		include $config['dir']['homepage'] . '/' . $_theme . '/theme.php';
 		return $theme;

mod.php

@@ -80,6 +80,7 @@
 				'Boards' => '',
 				'Noticeboard' => '',
 				'Administration' => '',
+				'Themes' => '',
 				'Search' => '',
 				'Logout' => ''
 			);
@@ -158,6 +159,10 @@
 				$fieldset['Administration'] .= 	'<li><a href="?/config">Show configuration</a></li>';
 			}
 			
+			if($mod['type'] >= $config['mod']['themes']) {
+				$fieldset['Themes'] .= 	'<li><a href="?/themes">Manage themes</a></li>';
+			}
+			
 			if($mod['type'] >= $config['mod']['search']) {
 				$fieldset['Search'] .= 	'<li><form style="display:inline" action="?/search" method="post">' .
 				'<label style="display:inline" for="search">Phrase:</label> ' .
@@ -249,6 +254,19 @@
 				'mod'=>true
 				)
 			);
+		} elseif(preg_match('/^\/themes\/none$/', $query, $match)) {
+			if($mod['type'] < $config['mod']['themes']) error($config['error']['noaccess']);
+			
+			// Clearsettings
+			query("TRUNCATE TABLE `theme_settings`") or error(db_error());
+			
+			echo Element('page.html', Array(
+				'config'=>$config,
+				'title'=>'No theme',
+				'body'=>'<p style="text-align:center">Successfully stopped using any themes. You\'ll have to create a homepage manually if you want one.</p>',
+				'mod'=>true
+				)
+			);
 		} elseif(preg_match('/^\/themes(\/(\w+))?$/', $query, $match)) {
 			if($mod['type'] < $config['mod']['themes']) error($config['error']['noaccess']);
 			
@@ -260,7 +278,9 @@
 			if(isset($match[2])) {
 				$_theme = $match[2];
 				
-				$theme = loadThemeConfig($_theme);
+				if(!$theme = loadThemeConfig($_theme)) {
+					error($config['error']['invalidtheme']);
+				}
 				
 				if(isset($_POST['install'])) {
 					// Check if everything is submitted
@@ -366,6 +386,9 @@
 					}
 					$body .= '</table>';
 				}
+				
+				$body .= '<p style="text-align:center"><a href="?/themes/none">Don\'t use a theme.</a></p>';
+				
 				echo Element('page.html', Array(
 					'config'=>$config,
 					'title'=>'Select theme',