19 files changed, 63 insertions, 49 deletions
diff --git a/phpBB/adm/index.php b/phpBB/adm/index.php
index 0f84af6f9e..564a19ce64 100644
--- a/phpBB/adm/index.php
+++ b/phpBB/adm/index.php
@@ -42,7 +42,6 @@ if (!$auth->acl_get('a_'))
 
 // We define the admin variables now, because the user is now able to use the admin related features...
 define('IN_ADMIN', true);
-$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : './';
 
 // Some oft used variables
 $safe_mode		= (@ini_get('safe_mode') == '1' || strtolower(@ini_get('safe_mode')) === 'on') ? true : false;
diff --git a/phpBB/adm/style/install_header.html b/phpBB/adm/style/install_header.html
index 6826654ded..5631b83e17 100644
--- a/phpBB/adm/style/install_header.html
+++ b/phpBB/adm/style/install_header.html
@@ -5,7 +5,7 @@
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>
 
-<link href="../adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />
+<link href="{T_TEMPLATE_PATH}/admin.css" rel="stylesheet" type="text/css" media="screen" />
 
 <script type="text/javascript">
 // <![CDATA[
@@ -49,7 +49,7 @@ function dE(n, s, type)
 		</form>
 		<!-- ENDIF -->
 	</div>
-	
+
 	<div id="page-body">
 		<div id="tabs">
 			<ul>
@@ -73,5 +73,5 @@ function dE(n, s, type)
 						<!-- END l_block2 -->
 						</ul>
 					</div>
-	
+
 					<div id="main" class="install-body">
diff --git a/phpBB/adm/style/install_update_diff.html b/phpBB/adm/style/install_update_diff.html
index ecdc40e157..1f30fe4d13 100644
--- a/phpBB/adm/style/install_update_diff.html
+++ b/phpBB/adm/style/install_update_diff.html
@@ -5,7 +5,7 @@
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>
 
-<link href="../adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />
+<link href="{T_TEMPLATE_PATH}/admin.css" rel="stylesheet" type="text/css" media="screen" />
 
 <script type="text/javascript">
 // <![CDATA[
diff --git a/phpBB/adm/swatch.php b/phpBB/adm/swatch.php
index c01651e0f0..3ae38d0d8b 100644
--- a/phpBB/adm/swatch.php
+++ b/phpBB/adm/swatch.php
@@ -21,8 +21,6 @@ $user->session_begin(false);
 $auth->acl($user->data);
 $user->setup();
 
-$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : './';
-
 // Set custom template for admin area
 $phpbb_style->set_custom_style('admin', $phpbb_admin_path . 'style', array(), '');
 
diff --git a/phpBB/common.php b/phpBB/common.php
index add0b07726..3e0b8e324b 100644
--- a/phpBB/common.php
+++ b/phpBB/common.php
@@ -63,6 +63,10 @@ if (!defined('PHPBB_INSTALLED'))
 	exit;
 }
 
+// In case $phpbb_adm_relative_path is not set (in case of an update), use the default.
+$phpbb_adm_relative_path = (isset($phpbb_adm_relative_path)) ? $phpbb_adm_relative_path : 'adm/';
+$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : $phpbb_root_path . $phpbb_adm_relative_path;
+
 // Include files
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
 
diff --git a/phpBB/includes/acp/acp_ranks.php b/phpBB/includes/acp/acp_ranks.php
index d9ed5b17f1..6b06d03f52 100644
--- a/phpBB/includes/acp/acp_ranks.php
+++ b/phpBB/includes/acp/acp_ranks.php
@@ -71,7 +71,7 @@ class acp_ranks
 					'rank_min'			=> $min_posts,
 					'rank_image'		=> htmlspecialchars_decode($rank_image)
 				);
-				
+
 				if ($rank_id)
 				{
 					$sql = 'UPDATE ' . RANKS_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $sql_ary) . " WHERE rank_id = $rank_id";
@@ -122,7 +122,7 @@ class acp_ranks
 					$cache->destroy('_ranks');
 
 					add_log('admin', 'LOG_RANK_REMOVED', $rank_title);
-					
+
 					if ($request->is_ajax())
 					{
 						$json_response = new phpbb_json_response;
@@ -151,7 +151,7 @@ class acp_ranks
 			case 'add':
 
 				$data = $ranks = $existing_imgs = array();
-				
+
 				$sql = 'SELECT *
 					FROM ' . RANKS_TABLE . '
 					ORDER BY rank_min ASC, rank_special ASC';
@@ -209,17 +209,17 @@ class acp_ranks
 
 					'RANK_TITLE'		=> (isset($ranks['rank_title'])) ? $ranks['rank_title'] : '',
 					'S_FILENAME_LIST'	=> $filename_list,
-					'RANK_IMAGE'		=> ($edit_img) ? $phpbb_root_path . $config['ranks_path'] . '/' . $edit_img : $phpbb_admin_path . 'images/spacer.gif',
+					'RANK_IMAGE'		=> ($edit_img) ? $phpbb_root_path . $config['ranks_path'] . '/' . $edit_img : htmlspecialchars($phpbb_admin_path) . 'images/spacer.gif',
 					'S_SPECIAL_RANK'	=> (isset($ranks['rank_special']) && $ranks['rank_special']) ? true : false,
 					'MIN_POSTS'			=> (isset($ranks['rank_min']) && !$ranks['rank_special']) ? $ranks['rank_min'] : 0)
 				);
-						
+
 
 				return;
 
 			break;
 		}
-	
+
 		$template->assign_vars(array(
 			'U_ACTION'		=> $this->u_action)
 		);
@@ -241,7 +241,7 @@ class acp_ranks
 
 				'U_EDIT'			=> $this->u_action . '&amp;action=edit&amp;id=' . $row['rank_id'],
 				'U_DELETE'			=> $this->u_action . '&amp;action=delete&amp;id=' . $row['rank_id'])
-			);	
+			);
 		}
 		$db->sql_freeresult($result);
 
diff --git a/phpBB/includes/db/driver/driver.php b/phpBB/includes/db/driver/driver.php
index 25daa7243d..52ac21a79f 100644
--- a/phpBB/includes/db/driver/driver.php
+++ b/phpBB/includes/db/driver/driver.php
@@ -822,7 +822,7 @@ class phpbb_db_driver
 	*/
 	function sql_report($mode, $query = '')
 	{
-		global $cache, $starttime, $phpbb_root_path, $user;
+		global $cache, $starttime, $phpbb_root_path, $phpbb_admin_path, $user;
 		global $request;
 
 		if (is_object($request) && !$request->variable('explain', false))
@@ -852,7 +852,7 @@ class phpbb_db_driver
 					<head>
 						<meta charset="utf-8">
 						<title>SQL Report</title>
-						<link href="' . $phpbb_root_path . 'adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />
+						<link href="' . htmlspecialchars($phpbb_admin_path) . 'style/admin.css" rel="stylesheet" type="text/css" media="screen" />
 					</head>
 					<body id="errorpage">
 					<div id="wrap">
diff --git a/phpBB/includes/di/extension/config.php b/phpBB/includes/di/extension/config.php
index 97a6290066..6c272a6588 100644
--- a/phpBB/includes/di/extension/config.php
+++ b/phpBB/includes/di/extension/config.php
@@ -42,6 +42,7 @@ class phpbb_di_extension_config extends Extension
 	{
 		require($this->config_file);
 
+		$container->setParameter('core.adm_relative_path', (isset($phpbb_adm_relative_path) ? $phpbb_adm_relative_path : 'adm/'));
 		$container->setParameter('core.table_prefix', $table_prefix);
 		$container->setParameter('cache.driver.class', $this->convert_30_acm_type($acm_type));
 		$container->setParameter('dbal.driver.class', phpbb_convert_30_dbms_to_31($dbms));
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 8ef5284134..d0ef2759d5 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -5339,7 +5339,7 @@ function page_header($page_title = '', $display_online_list = true, $item_id = 0
 function page_footer($run_cron = true, $display_template = true, $exit_handler = true)
 {
 	global $db, $config, $template, $user, $auth, $cache, $starttime, $phpbb_root_path, $phpEx;
-	global $request, $phpbb_dispatcher;
+	global $request, $phpbb_dispatcher, $phpbb_admin_path;
 
 	// A listener can set this variable to `true` when it overrides this function
 	$page_footer_override = false;
@@ -5395,7 +5395,7 @@ function page_footer($run_cron = true, $display_template = true, $exit_handler =
 		'TRANSLATION_INFO'		=> (!empty($user->lang['TRANSLATION_INFO'])) ? $user->lang['TRANSLATION_INFO'] : '',
 		'CREDIT_LINE'			=> $user->lang('POWERED_BY', '<a href="https://www.phpbb.com/">phpBB</a>&reg; Forum Software &copy; phpBB Group'),
 
-		'U_ACP' => ($auth->acl_get('a_') && !empty($user->data['is_registered'])) ? append_sid("{$phpbb_root_path}adm/index.$phpEx", false, true, $user->session_id) : '')
+		'U_ACP' => ($auth->acl_get('a_') && !empty($user->data['is_registered'])) ? append_sid("{$phpbb_admin_path}index.$phpEx", false, true, $user->session_id) : '')
 	);
 
 	// Call cron-type script
diff --git a/phpBB/includes/functions_acp.php b/phpBB/includes/functions_acp.php
index 2f3fd7bac0..32fd76e74d 100644
--- a/phpBB/includes/functions_acp.php
+++ b/phpBB/includes/functions_acp.php
@@ -82,16 +82,16 @@ function adm_page_header($page_title)
 		'T_RANKS_PATH'			=> "{$phpbb_root_path}{$config['ranks_path']}/",
 		'T_UPLOAD_PATH'			=> "{$phpbb_root_path}{$config['upload_path']}/",
 
-		'ICON_MOVE_UP'				=> '<img src="' . $phpbb_admin_path . 'images/icon_up.gif" alt="' . $user->lang['MOVE_UP'] . '" title="' . $user->lang['MOVE_UP'] . '" />',
-		'ICON_MOVE_UP_DISABLED'		=> '<img src="' . $phpbb_admin_path . 'images/icon_up_disabled.gif" alt="' . $user->lang['MOVE_UP'] . '" title="' . $user->lang['MOVE_UP'] . '" />',
-		'ICON_MOVE_DOWN'			=> '<img src="' . $phpbb_admin_path . 'images/icon_down.gif" alt="' . $user->lang['MOVE_DOWN'] . '" title="' . $user->lang['MOVE_DOWN'] . '" />',
-		'ICON_MOVE_DOWN_DISABLED'	=> '<img src="' . $phpbb_admin_path . 'images/icon_down_disabled.gif" alt="' . $user->lang['MOVE_DOWN'] . '" title="' . $user->lang['MOVE_DOWN'] . '" />',
-		'ICON_EDIT'					=> '<img src="' . $phpbb_admin_path . 'images/icon_edit.gif" alt="' . $user->lang['EDIT'] . '" title="' . $user->lang['EDIT'] . '" />',
-		'ICON_EDIT_DISABLED'		=> '<img src="' . $phpbb_admin_path . 'images/icon_edit_disabled.gif" alt="' . $user->lang['EDIT'] . '" title="' . $user->lang['EDIT'] . '" />',
-		'ICON_DELETE'				=> '<img src="' . $phpbb_admin_path . 'images/icon_delete.gif" alt="' . $user->lang['DELETE'] . '" title="' . $user->lang['DELETE'] . '" />',
-		'ICON_DELETE_DISABLED'		=> '<img src="' . $phpbb_admin_path . 'images/icon_delete_disabled.gif" alt="' . $user->lang['DELETE'] . '" title="' . $user->lang['DELETE'] . '" />',
-		'ICON_SYNC'					=> '<img src="' . $phpbb_admin_path . 'images/icon_sync.gif" alt="' . $user->lang['RESYNC'] . '" title="' . $user->lang['RESYNC'] . '" />',
-		'ICON_SYNC_DISABLED'		=> '<img src="' . $phpbb_admin_path . 'images/icon_sync_disabled.gif" alt="' . $user->lang['RESYNC'] . '" title="' . $user->lang['RESYNC'] . '" />',
+		'ICON_MOVE_UP'				=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_up.gif" alt="' . $user->lang['MOVE_UP'] . '" title="' . $user->lang['MOVE_UP'] . '" />',
+		'ICON_MOVE_UP_DISABLED'		=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_up_disabled.gif" alt="' . $user->lang['MOVE_UP'] . '" title="' . $user->lang['MOVE_UP'] . '" />',
+		'ICON_MOVE_DOWN'			=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_down.gif" alt="' . $user->lang['MOVE_DOWN'] . '" title="' . $user->lang['MOVE_DOWN'] . '" />',
+		'ICON_MOVE_DOWN_DISABLED'	=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_down_disabled.gif" alt="' . $user->lang['MOVE_DOWN'] . '" title="' . $user->lang['MOVE_DOWN'] . '" />',
+		'ICON_EDIT'					=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_edit.gif" alt="' . $user->lang['EDIT'] . '" title="' . $user->lang['EDIT'] . '" />',
+		'ICON_EDIT_DISABLED'		=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_edit_disabled.gif" alt="' . $user->lang['EDIT'] . '" title="' . $user->lang['EDIT'] . '" />',
+		'ICON_DELETE'				=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_delete.gif" alt="' . $user->lang['DELETE'] . '" title="' . $user->lang['DELETE'] . '" />',
+		'ICON_DELETE_DISABLED'		=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_delete_disabled.gif" alt="' . $user->lang['DELETE'] . '" title="' . $user->lang['DELETE'] . '" />',
+		'ICON_SYNC'					=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_sync.gif" alt="' . $user->lang['RESYNC'] . '" title="' . $user->lang['RESYNC'] . '" />',
+		'ICON_SYNC_DISABLED'		=> '<img src="' . htmlspecialchars($phpbb_admin_path) . 'images/icon_sync_disabled.gif" alt="' . $user->lang['RESYNC'] . '" title="' . $user->lang['RESYNC'] . '" />',
 
 		'S_USER_LANG'			=> $user->lang['USER_LANG'],
 		'S_CONTENT_DIRECTION'	=> $user->lang['DIRECTION'],
diff --git a/phpBB/includes/functions_install.php b/phpBB/includes/functions_install.php
index 2b4b7eb10d..edb2c35fee 100644
--- a/phpBB/includes/functions_install.php
+++ b/phpBB/includes/functions_install.php
@@ -508,6 +508,9 @@ function phpbb_create_config_file_data($data, $dbms, $debug = false, $debug_test
 		'dbuser'		=> $data['dbuser'],
 		'dbpasswd'		=> htmlspecialchars_decode($data['dbpasswd']),
 		'table_prefix'	=> $data['table_prefix'],
+
+		'adm_relative_path'	=> 'adm/',
+
 		'acm_type'		=> 'phpbb_cache_driver_file',
 	);
 
diff --git a/phpBB/includes/ucp/ucp_groups.php b/phpBB/includes/ucp/ucp_groups.php
index 9652986cf2..d92aea91f8 100644
--- a/phpBB/includes/ucp/ucp_groups.php
+++ b/phpBB/includes/ucp/ucp_groups.php
@@ -25,7 +25,7 @@ class ucp_groups
 
 	function main($id, $mode)
 	{
-		global $config, $phpbb_root_path, $phpEx;
+		global $config, $phpbb_root_path, $phpEx, $phpbb_admin_path;
 		global $db, $user, $auth, $cache, $template;
 		global $request;
 
@@ -438,7 +438,7 @@ class ucp_groups
 					$group_name = $group_row['group_name'];
 					$group_type = $group_row['group_type'];
 
-					$avatar_img = (!empty($group_row['group_avatar'])) ? get_user_avatar($group_row['group_avatar'], $group_row['group_avatar_type'], $group_row['group_avatar_width'], $group_row['group_avatar_height'], 'GROUP_AVATAR') : '<img src="' . $phpbb_root_path . 'adm/images/no_avatar.gif" alt="" />';
+					$avatar_img = (!empty($group_row['group_avatar'])) ? get_user_avatar($group_row['group_avatar'], $group_row['group_avatar_type'], $group_row['group_avatar_width'], $group_row['group_avatar_height'], 'GROUP_AVATAR') : '<img src="' . $phpbb_admin_path . 'images/no_avatar.gif" alt="" />';
 
 					$template->assign_vars(array(
 						'GROUP_NAME'			=> ($group_type == GROUP_SPECIAL) ? $user->lang['G_' . $group_name] : $group_name,
@@ -730,7 +730,7 @@ class ucp_groups
 							'GROUP_CLOSED'		=> $type_closed,
 							'GROUP_HIDDEN'		=> $type_hidden,
 
-							'U_SWATCH'			=> append_sid("{$phpbb_root_path}adm/swatch.$phpEx", 'form=ucp&amp;name=group_colour'),
+							'U_SWATCH'			=> append_sid("{$phpbb_admin_path}swatch.$phpEx", 'form=ucp&amp;name=group_colour'),
 							'S_UCP_ACTION'		=> $this->u_action . "&amp;action=$action&amp;g=$group_id",
 							'L_AVATAR_EXPLAIN'	=> phpbb_avatar_explanation_string(),
 						));
diff --git a/phpBB/install/database_update.php b/phpBB/install/database_update.php
index 6160a93a04..bbb40d3976 100644
--- a/phpBB/install/database_update.php
+++ b/phpBB/install/database_update.php
@@ -73,6 +73,10 @@ if (!defined('PHPBB_INSTALLED') || empty($dbms) || empty($acm_type))
 	die("Please read: <a href='../docs/INSTALL.html'>INSTALL.html</a> before attempting to update.");
 }
 
+// In case $phpbb_adm_relative_path is not set (in case of an update), use the default.
+$phpbb_adm_relative_path = (isset($phpbb_adm_relative_path)) ? $phpbb_adm_relative_path : 'adm/';
+$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : $phpbb_root_path . $phpbb_adm_relative_path;
+
 // Include files
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
 
@@ -231,7 +235,7 @@ if ($has_global && !$ga_forum_id)
 
 	<title><?php echo $lang['UPDATING_TO_LATEST_STABLE']; ?></title>
 
-	<link href="../adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />
+	<link href="<?php echo htmlspecialchars($phpbb_admin_path); ?>style/admin.css" rel="stylesheet" type="text/css" media="screen" />
 
 	</head>
 
@@ -281,7 +285,7 @@ header('Content-type: text/html; charset=UTF-8');
 
 <title><?php echo $lang['UPDATING_TO_LATEST_STABLE']; ?></title>
 
-<link href="../adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />
+<link href="<?php echo htmlspecialchars($phpbb_admin_path); ?>style/admin.css" rel="stylesheet" type="text/css" media="screen" />
 
 </head>
 
diff --git a/phpBB/install/index.php b/phpBB/install/index.php
index 2be5adaaac..8514f34e09 100644
--- a/phpBB/install/index.php
+++ b/phpBB/install/index.php
@@ -73,6 +73,10 @@ else
 }
 @ini_set('memory_limit', $mem_limit);
 
+// In case $phpbb_adm_relative_path is not set (in case of an update), use the default.
+$phpbb_adm_relative_path = (isset($phpbb_adm_relative_path)) ? $phpbb_adm_relative_path : 'adm/';
+$phpbb_admin_path = (defined('PHPBB_ADMIN_PATH')) ? PHPBB_ADMIN_PATH : $phpbb_root_path . $phpbb_adm_relative_path;
+
 // Include essential scripts
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
 
@@ -215,9 +219,9 @@ $phpbb_style_path_provider = new phpbb_style_path_provider();
 $template = new phpbb_template($phpbb_root_path, $phpEx, $config, $user, $phpbb_style_resource_locator, new phpbb_template_context());
 $phpbb_style = new phpbb_style($phpbb_root_path, $phpEx, $config, $user, $phpbb_style_resource_locator, $phpbb_style_path_provider, $template);
 $phpbb_style->set_ext_dir_prefix('adm/');
-$phpbb_style->set_custom_style('admin', '../adm/style', array(), '');
+$phpbb_style->set_custom_style('admin', $phpbb_admin_path . 'style', array(), '');
 $template->assign_var('T_ASSETS_PATH', '../assets');
-$template->assign_var('T_TEMPLATE_PATH', '../adm/style');
+$template->assign_var('T_TEMPLATE_PATH', $phpbb_admin_path . 'style');
 
 $install = new module();
 
@@ -361,7 +365,7 @@ class module
 		}
 
 		define('HEADER_INC', true);
-		global $template, $lang, $stage, $phpbb_root_path;
+		global $template, $lang, $stage, $phpbb_root_path, $phpbb_admin_path;
 
 		$template->assign_vars(array(
 			'L_CHANGE'				=> $lang['CHANGE'],
@@ -370,7 +374,7 @@ class module
 			'L_SELECT_LANG'			=> $lang['SELECT_LANG'],
 			'L_SKIP'				=> $lang['SKIP'],
 			'PAGE_TITLE'			=> $this->get_page_title(),
-			'T_IMAGE_PATH'			=> $phpbb_root_path . 'adm/images/',
+			'T_IMAGE_PATH'			=> htmlspecialchars($phpbb_admin_path) . 'images/',
 
 			'S_CONTENT_DIRECTION' 	=> $lang['DIRECTION'],
 			'S_CONTENT_FLOW_BEGIN'	=> ($lang['DIRECTION'] == 'ltr') ? 'left' : 'right',
@@ -551,7 +555,7 @@ class module
 	*/
 	function error($error, $line, $file, $skip = false)
 	{
-		global $lang, $db, $template;
+		global $lang, $db, $template, $phpbb_admin_path;
 
 		if ($skip)
 		{
@@ -573,7 +577,7 @@ class module
 		echo '<head>';
 		echo '<meta charset="utf-8">';
 		echo '<title>' . $lang['INST_ERR_FATAL'] . '</title>';
-		echo '<link href="../adm/style/admin.css" rel="stylesheet" type="text/css" media="screen" />';
+		echo '<link href="' . htmlspecialchars($phpbb_admin_path) . 'style/admin.css" rel="stylesheet" type="text/css" media="screen" />';
 		echo '</head>';
 		echo '<body id="errorpage">';
 		echo '<div id="wrap">';
diff --git a/phpBB/install/install_install.php b/phpBB/install/install_install.php
index 14f6ca30fb..dfd9cd6c22 100644
--- a/phpBB/install/install_install.php
+++ b/phpBB/install/install_install.php
@@ -1807,7 +1807,7 @@ class install_install extends module
 	*/
 	function email_admin($mode, $sub)
 	{
-		global $auth, $config, $db, $lang, $template, $user, $phpbb_root_path, $phpEx;
+		global $auth, $config, $db, $lang, $template, $user, $phpbb_root_path, $phpbb_admin_path, $phpEx;
 
 		$this->page_title = $lang['STAGE_FINAL'];
 
@@ -1854,7 +1854,7 @@ class install_install extends module
 			'TITLE'		=> $lang['INSTALL_CONGRATS'],
 			'BODY'		=> sprintf($lang['INSTALL_CONGRATS_EXPLAIN'], $config['version'], append_sid($phpbb_root_path . 'install/index.' . $phpEx, 'mode=convert&amp;language=' . $data['language']), '../docs/README.html'),
 			'L_SUBMIT'	=> $lang['INSTALL_LOGIN'],
-			'U_ACTION'	=> append_sid($phpbb_root_path . 'adm/index.' . $phpEx, 'i=send_statistics&amp;mode=send_statistics'),
+			'U_ACTION'	=> append_sid($phpbb_admin_path . 'index.' . $phpEx, 'i=send_statistics&amp;mode=send_statistics'),
 		));
 	}
 
diff --git a/phpBB/install/install_update.php b/phpBB/install/install_update.php
index 53f9c52556..bfceed6b17 100644
--- a/phpBB/install/install_update.php
+++ b/phpBB/install/install_update.php
@@ -72,7 +72,7 @@ class install_update extends module
 	function main($mode, $sub)
 	{
 		global $phpbb_style, $template, $phpEx, $phpbb_root_path, $user, $db, $config, $cache, $auth, $language;
-		global $request;
+		global $request, $phpbb_admin_path, $phpbb_adm_relative_path;
 
 		$this->tpl_name = 'install_update';
 		$this->page_title = 'UPDATE_INSTALLATION';
@@ -132,7 +132,7 @@ class install_update extends module
 		}
 
 		// Set custom template again. ;)
-		$phpbb_style->set_custom_style('admin', '../adm/style', array(), '');
+		$phpbb_style->set_custom_style('admin', $phpbb_admin_path . 'style', array(), '');
 
 		$template->assign_vars(array(
 			'S_USER_LANG'			=> $user->lang['USER_LANG'],
@@ -217,7 +217,7 @@ class install_update extends module
 		if ($this->test_update === false)
 		{
 			// Got the updater template itself updated? If so, we are able to directly use it - but only if all three files are present
-			if (in_array('adm/style/install_update.html', $this->update_info['files']))
+			if (in_array($phpbb_adm_relative_path . 'style/install_update.html', $this->update_info['files']))
 			{
 				$this->tpl_name = '../../install/update/new/adm/style/install_update';
 			}
@@ -494,6 +494,7 @@ class install_update extends module
 				$template->assign_vars(array(
 					'S_FILE_CHECK'			=> true,
 					'S_ALL_UP_TO_DATE'		=> $all_up_to_date,
+					'L_ALL_FILES_UP_TO_DATE'	=> $user->lang('ALL_FILES_UP_TO_DATE', append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login'), append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login&amp;redirect=' . $phpbb_adm_relative_path . 'index.php%3Fi=send_statistics%26mode=send_statistics')),
 					'S_VERSION_UP_TO_DATE'	=> $up_to_date,
 					'U_ACTION'				=> append_sid($this->p_master->module_url, "language=$language&amp;mode=$mode&amp;sub=file_check"),
 					'U_UPDATE_ACTION'		=> append_sid($this->p_master->module_url, "language=$language&amp;mode=$mode&amp;sub=update_files"),
@@ -1078,12 +1079,12 @@ class install_update extends module
 	*/
 	function show_diff(&$update_list)
 	{
-		global $phpbb_root_path, $template, $user;
+		global $phpbb_root_path, $template, $user, $phpbb_adm_relative_path;
 
 		$this->tpl_name = 'install_update_diff';
 
 		// Got the diff template itself updated? If so, we are able to directly use it
-		if (in_array('adm/style/install_update_diff.html', $this->update_info['files']))
+		if (in_array($phpbb_adm_relative_path . 'style/install_update_diff.html', $this->update_info['files']))
 		{
 			$this->tpl_name = '../../install/update/new/adm/style/install_update_diff';
 		}
diff --git a/phpBB/language/en/install.php b/phpBB/language/en/install.php
index 1c45deae11..f7820714e1 100644
--- a/phpBB/language/en/install.php
+++ b/phpBB/language/en/install.php
@@ -374,7 +374,7 @@ $lang = array_merge($lang, array(
 
 // Updater
 $lang = array_merge($lang, array(
-	'ALL_FILES_UP_TO_DATE'		=> 'All files are up to date with the latest phpBB version. You should now <a href="../ucp.php?mode=login">login to your board</a> and check if everything is working fine. Do not forget to delete, rename or move your install directory! Please send us updated information about your server and board configurations from the <a href="../ucp.php?mode=login&amp;redirect=adm/index.php%3Fi=send_statistics%26mode=send_statistics">Send statistics</a> module in your ACP.',
+	'ALL_FILES_UP_TO_DATE'		=> 'All files are up to date with the latest phpBB version. You should now <a href="%1$s">login to your board</a> and check if everything is working fine. Do not forget to delete, rename or move your install directory! Please send us updated information about your server and board configurations from the <a href="%2$s">Send statistics</a> module in your ACP.',
 	'ARCHIVE_FILE'				=> 'Source file within archive',
 
 	'BACK'				=> 'Back',
diff --git a/phpBB/memberlist.php b/phpBB/memberlist.php
index d9ba147c70..79be9ca432 100644
--- a/phpBB/memberlist.php
+++ b/phpBB/memberlist.php
@@ -649,7 +649,7 @@ switch ($mode)
 			'S_GROUP_OPTIONS'	=> $group_options,
 			'S_CUSTOM_FIELDS'	=> (isset($profile_fields['row']) && sizeof($profile_fields['row'])) ? true : false,
 
-			'U_USER_ADMIN'			=> ($auth->acl_get('a_user')) ? append_sid("{$phpbb_root_path}adm/index.$phpEx", 'i=users&amp;mode=overview&amp;u=' . $user_id, true, $user->session_id) : '',
+			'U_USER_ADMIN'			=> ($auth->acl_get('a_user')) ? append_sid("{$phpbb_admin_path}index.$phpEx", 'i=users&amp;mode=overview&amp;u=' . $user_id, true, $user->session_id) : '',
 			'U_USER_BAN'			=> ($auth->acl_get('m_ban') && $user_id != $user->data['user_id']) ? append_sid("{$phpbb_root_path}mcp.$phpEx", 'i=ban&amp;mode=user&amp;u=' . $user_id, true, $user->session_id) : '',
 			'U_MCP_QUEUE'			=> ($auth->acl_getf_global('m_approve')) ? append_sid("{$phpbb_root_path}mcp.$phpEx", 'i=queue', true, $user->session_id) : '',
 
diff --git a/phpBB/viewonline.php b/phpBB/viewonline.php
index 687fef4c6c..6b26a3f5d6 100644
--- a/phpBB/viewonline.php
+++ b/phpBB/viewonline.php
@@ -216,7 +216,7 @@ while ($row = $db->sql_fetchrow($result))
 			$location_url = append_sid("{$phpbb_root_path}index.$phpEx");
 		break;
 
-		case 'adm/index':
+		case $phpbb_adm_relative_path . 'index':
 			$location = $user->lang['ACP'];
 			$location_url = append_sid("{$phpbb_root_path}index.$phpEx");
 		break;