Fixes #4059 page handlers all return nothing

29 files changed, 161 insertions, 181 deletions

diff --git a/engine/lib/admin.php b/engine/lib/admin.php
index ae6429baf..c0a5c0995 100644
--- a/engine/lib/admin.php
+++ b/engine/lib/admin.php
@@ -314,7 +314,7 @@ function admin_init() {
 	// automatic adding of widgets for admin
 	elgg_register_event_handler('make_admin', 'user', 'elgg_add_admin_widgets');
 
-	elgg_register_page_handler('admin', 'admin_settings_page_handler');
+	elgg_register_page_handler('admin', 'admin_page_handler');
 	elgg_register_page_handler('admin_plugin_screenshot', 'admin_plugin_screenshot_page_handler');
 	elgg_register_page_handler('admin_plugin_text_file', 'admin_markdown_page_handler');
 }
@@ -430,7 +430,7 @@ function admin_pagesetup() {
  * @return void
  * @access private
  */
-function admin_settings_page_handler($page) {
+function admin_page_handler($page) {
 
 	admin_gatekeeper();
 	elgg_admin_add_plugin_settings_menu();
@@ -485,7 +485,7 @@ function admin_settings_page_handler($page) {
  * admin_plugin_screenshot/<plugin_id>/<size>/<ss_name>.<ext>
  *
  * @param array $pages The pages array
- * @return true
+ * @return void
  * @access private
  */
 function admin_plugin_screenshot_page_handler($pages) {
@@ -524,8 +524,6 @@ function admin_plugin_screenshot_page_handler($pages) {
 			echo file_get_contents($file);
 			break;
 	}
-
-	return true;
 }
 
 /**
@@ -541,6 +539,7 @@ function admin_plugin_screenshot_page_handler($pages) {
  *	* LICENSE.txt
  *
  * @param type $page
+ * @return void
  * @access private
  */
 function admin_markdown_page_handler($pages) {
diff --git a/engine/lib/deprecated-1.8.php b/engine/lib/deprecated-1.8.php
index beba7d2b7..e1866498b 100644
--- a/engine/lib/deprecated-1.8.php
+++ b/engine/lib/deprecated-1.8.php
@@ -4735,3 +4735,40 @@ function remove_from_river_by_id($id) {
 
 	return elgg_delete_river(array('id' => $id));
 }
+
+/**
+ * A default page handler
+ * Tries to locate a suitable file to include. Only works for core pages, not plugins.
+ *
+ * @param array  $page    The page URL elements
+ * @param string $handler The base handler
+ *
+ * @return true|false Depending on success
+ * @deprecated 1.8
+ */
+function default_page_handler($page, $handler) {
+	global $CONFIG;
+
+	elgg_deprecated_notice("default_page_handler is deprecated", "1.8");
+
+	$page = implode('/', $page);
+
+	// protect against including arbitary files
+	$page = str_replace("..", "", $page);
+
+	$callpath = $CONFIG->path . $handler . "/" . $page;
+	if (is_dir($callpath)) {
+		$callpath = sanitise_filepath($callpath);
+		$callpath .= "index.php";
+		if (file_exists($callpath)) {
+			if (include($callpath)) {
+				return TRUE;
+			}
+		}
+	} else if (file_exists($callpath)) {
+		include($callpath);
+		return TRUE;
+	}
+
+	return FALSE;
+}
diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index a6f5fbc6f..03774deb4 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -1745,7 +1745,7 @@ function _elgg_shutdown_hook() {
  * @access private
  */
 function elgg_js_page_handler($page) {
-	return elgg_cacheable_view_page_handler($page, 'js');
+	elgg_cacheable_view_page_handler($page, 'js');
 }
 
 /**
@@ -1777,8 +1777,6 @@ function elgg_ajax_page_handler($page) {
 
 		echo elgg_view($view, $vars);
 	}
-	
-	return true;
 }
 
 /**
@@ -1798,7 +1796,7 @@ function elgg_css_page_handler($page) {
 		$page[0] = 'elgg';
 	}
 	
-	return elgg_cacheable_view_page_handler($page, 'css');
+	elgg_cacheable_view_page_handler($page, 'css');
 }
 
 /**
@@ -1809,7 +1807,7 @@ function elgg_css_page_handler($page) {
  * @param array  $page The page array
  * @param string $type The type: js or css
  *
- * @return mixed
+ * @return void
  * @access private
  */
 function elgg_cacheable_view_page_handler($page, $type) {
@@ -1824,7 +1822,7 @@ function elgg_cacheable_view_page_handler($page, $type) {
 			break;
 
 		default:
-			return false;
+			return;
 			break;
 	}
 
@@ -1851,8 +1849,6 @@ function elgg_cacheable_view_page_handler($page, $type) {
 
 		echo $return;
 	}
-
-	return true;
 }
 
 /**
@@ -1886,6 +1882,8 @@ function elgg_sql_reverse_order_by_clause($order_by) {
  *
  * Used as a callback for ElggBatch.
  *
+ * @todo why aren't these static methods on ElggBatch?
+ *
  * @param object $object The object to enable
  * @return bool
  * @access private
diff --git a/engine/lib/pagehandler.php b/engine/lib/pagehandler.php
index 0d5e5f89b..91e568c1d 100644
--- a/engine/lib/pagehandler.php
+++ b/engine/lib/pagehandler.php
@@ -9,12 +9,10 @@
 /**
  * Turns the current page over to the page handler, allowing registered handlers to take over.
  *
- * If a page handler returns FALSE, the request is handed over to the default_page_handler.
- *
  * @param string $handler The name of the handler type (eg 'blog')
  * @param array  $page    The parameters to the page, as an array (exploded by '/' slashes)
  *
- * @return true|false Depending on whether a registered page handler was found
+ * @return bool
  * @access private
  */
 function page_handler($handler, $page) {
@@ -42,26 +40,12 @@ function page_handler($handler, $page) {
 	$handler = $params['handler'];
 	$page = $params['segments'];
 
-	if (!isset($CONFIG->pagehandler) || empty($handler)) {
-		$result = false;
-	} else if (isset($CONFIG->pagehandler[$handler]) && is_callable($CONFIG->pagehandler[$handler])) {
+	if (isset($CONFIG->pagehandler) && !empty($handler) && isset($CONFIG->pagehandler[$handler])) {
 		$function = $CONFIG->pagehandler[$handler];
-		$result = call_user_func($function, $page, $handler);
-		if ($result !== false) {
-			$result = true;
-		}
-	} else {
-		$result = false;
+		call_user_func($function, $page, $handler);
 	}
 
-	if (!$result) {
-		$result = default_page_handler($page, $handler);
-	}
-	if ($result !== false) {
-		$result = true;
-	}
-
-	return $result;
+	return headers_sent();
 }
 
 /**
@@ -74,14 +58,15 @@ function page_handler($handler, $page) {
  * For example, the URL http://yoururl/blog/username/friends/ would result in the call:
  * blog_page_handler(array('username','friends'), blog);
  *
- * Page handler functions should return true or the default page handler will be called.
- *
  * A request to register a page handler with the same identifier as previously registered
  * handler will replace the previous one.
  *
  * The context is set to the page handler identifier before the registered
  * page handler function is called. For the above example, the context is set to 'blog'.
  *
+ * Requests not handled are forwarded to the front page with a reason of 404.
+ * Plugins can register for the 'forward', '404' plugin hook. @see forward()
+ *
  * @param string $handler  The page type to handle
  * @param string $function Your function name
  *
@@ -119,38 +104,3 @@ function elgg_unregister_page_handler($handler) {
 
 	unset($CONFIG->pagehandler[$handler]);
 }
-
-/**
- * A default page handler
- * Tries to locate a suitable file to include. Only works for core pages, not plugins.
- *
- * @param array  $page    The page URL elements
- * @param string $handler The base handler
- *
- * @return true|false Depending on success
- * @access private
- */
-function default_page_handler($page, $handler) {
-	global $CONFIG;
-
-	$page = implode('/', $page);
-
-	// protect against including arbitary files
-	$page = str_replace("..", "", $page);
-
-	$callpath = $CONFIG->path . $handler . "/" . $page;
-	if (is_dir($callpath)) {
-		$callpath = sanitise_filepath($callpath);
-		$callpath .= "index.php";
-		if (file_exists($callpath)) {
-			if (include($callpath)) {
-				return TRUE;
-			}
-		}
-	} else if (file_exists($callpath)) {
-		include($callpath);
-		return TRUE;
-	}
-
-	return FALSE;
-}
diff --git a/engine/lib/river.php b/engine/lib/river.php
index f430eb224..b2fead824 100644
--- a/engine/lib/river.php
+++ b/engine/lib/river.php
@@ -586,6 +586,7 @@ function update_river_access_by_object($object_guid, $access_id) {
  * Page handler for activiy
  *
  * @param array $page
+ * @return void
  * @access private
  */
 function elgg_river_page_handler($page) {
diff --git a/engine/lib/tags.php b/engine/lib/tags.php
index 6275d653c..b2c9a672f 100644
--- a/engine/lib/tags.php
+++ b/engine/lib/tags.php
@@ -325,21 +325,18 @@ function elgg_get_registered_tag_metadata_names() {
  * @access private
  */
 function elgg_tagcloud_page_handler($page) {
-	switch ($page[0]) {
-		default:
-			$title = elgg_view_title(elgg_echo('tags:site_cloud'));
-			$options = array(
-				'threshold' => 0,
-				'limit' => 100,
-				'tag_name' => 'tags',
-			);
-			$tags = elgg_view_tagcloud($options);
-			$content = $title . $tags;
-			$body = elgg_view_layout('one_sidebar', array('content' => $content));
-
-			echo elgg_view_page(elgg_echo('tags:site_cloud'), $body);
-			break;
-	}
+
+	$title = elgg_view_title(elgg_echo('tags:site_cloud'));
+	$options = array(
+		'threshold' => 0,
+		'limit' => 100,
+		'tag_name' => 'tags',
+	);
+	$tags = elgg_view_tagcloud($options);
+	$content = $title . $tags;
+	$body = elgg_view_layout('one_sidebar', array('content' => $content));
+
+	echo elgg_view_page(elgg_echo('tags:site_cloud'), $body);
 }
 
 /**
diff --git a/engine/lib/user_settings.php b/engine/lib/user_settings.php
index bb5d8d6c4..12084662b 100644
--- a/engine/lib/user_settings.php
+++ b/engine/lib/user_settings.php
@@ -304,7 +304,7 @@ function usersettings_page_handler($page) {
 		$page[0] = 'user';
 	}
 
-	if ($page[1]) {
+	if (isset($page[1])) {
 		$user = get_user_by_username($page[1]);
 		elgg_set_page_owner_guid($user->guid);
 	} else {
@@ -324,12 +324,13 @@ function usersettings_page_handler($page) {
 			$path = $CONFIG->path . "pages/settings/tools.php";
 			break;
 		case 'user':
-		default:
 			$path = $CONFIG->path . "pages/settings/account.php";
 			break;
 	}
 
-	require($path);
+	if (isset($path)) {
+		require $path;
+	}
 }
 
 /**
diff --git a/engine/lib/users.php b/engine/lib/users.php
index 843b897e9..3001a2ac6 100644
--- a/engine/lib/users.php
+++ b/engine/lib/users.php
@@ -1072,7 +1072,7 @@ function friends_page_handler($page_elements) {
 function friends_of_page_handler($page_elements) {
 	elgg_set_context('friends');
 	if (isset($page_elements[0]) && $user = get_user_by_username($page_elements[0])) {
-		set_page_owner($user->getGUID());
+		elgg_set_page_owner_guid($user->getGUID());
 	}
 	if (elgg_get_logged_in_user_guid() == elgg_get_page_owner_guid()) {
 		collections_submenu_items();
@@ -1404,6 +1404,7 @@ function elgg_profile_fields_setup() {
  * /avatar/view/<username>/<size>/<icontime>
  *
  * @param array $page
+ * @return void
  * @access private
  */
 function elgg_avatar_page_handler($page) {
@@ -1426,6 +1427,7 @@ function elgg_avatar_page_handler($page) {
  * Profile page handler
  *
  * @param array $page
+ * @return void
  * @access private
  */
 function elgg_profile_page_handler($page) {
diff --git a/mod/blog/start.php b/mod/blog/start.php
index 81837c48e..b2da00bc7 100644
--- a/mod/blog/start.php
+++ b/mod/blog/start.php
@@ -93,7 +93,7 @@ function blog_init() {
  * @todo no archives for all blogs or friends
  *
  * @param array $page
- * @return NULL
+ * @return void
  */
 function blog_page_handler($page) {
 
@@ -139,17 +139,17 @@ function blog_page_handler($page) {
 			$params = blog_get_page_content_list($page[1]);
 			break;
 		case 'all':
-		default:
-			$title = elgg_echo('blog:title:all_blogs');
 			$params = blog_get_page_content_list();
 			break;
 	}
 
-	$params['sidebar'] .= elgg_view('blog/sidebar', array('page' => $page_type));
+	if (isset($params)) {
+		$params['sidebar'] .= elgg_view('blog/sidebar', array('page' => $page_type));
 
-	$body = elgg_view_layout('content', $params);
+		$body = elgg_view_layout('content', $params);
 
-	echo elgg_view_page($params['title'], $body);
+		echo elgg_view_page($params['title'], $body);
+	}
 }
 
 /**
diff --git a/mod/bookmarks/start.php b/mod/bookmarks/start.php
index 2a7b44e97..6d9dc9b3d 100644
--- a/mod/bookmarks/start.php
+++ b/mod/bookmarks/start.php
@@ -83,6 +83,7 @@ function bookmarks_init() {
  * Title is ignored
  *
  * @param array $page
+ * @return void
  */
 function bookmarks_page_handler($page) {
 	elgg_load_library('elgg:bookmarks');
@@ -145,14 +146,9 @@ function bookmarks_page_handler($page) {
 			set_input('container_guid', $page[1]);
 			include "$pages/bookmarklet.php";
 			break;
-
-		default:
-			return false;
 	}
 
 	elgg_pop_context();
-
-	return true;
 }
 
 /**
diff --git a/mod/categories/start.php b/mod/categories/start.php
index b6bc4a55c..3cec516f1 100644
--- a/mod/categories/start.php
+++ b/mod/categories/start.php
@@ -27,12 +27,11 @@ function categories_init() {
 
 
 /**
- * Page handler
- *
+ * Category page handler
+ * @return void
  */
 function categories_page_handler() {
 	include(dirname(__FILE__) . "/pages/categories/listing.php");
-	return TRUE;
 }
 
 /**
diff --git a/mod/dashboard/start.php b/mod/dashboard/start.php
index 5635ead57..0197ee64f 100644
--- a/mod/dashboard/start.php
+++ b/mod/dashboard/start.php
@@ -29,6 +29,10 @@ function dashboard_init() {
 	elgg_register_plugin_hook_handler('get_list', 'default_widgets', 'dashboard_default_widgets');
 }
 
+/**
+ * Dashboard page handler
+ * @return void
+ */
 function dashboard_page_handler() {
 	// Ensure that only logged-in users can see this page
 	gatekeeper();
diff --git a/mod/developers/start.php b/mod/developers/start.php
index ab9a174a4..c89e3d36f 100644
--- a/mod/developers/start.php
+++ b/mod/developers/start.php
@@ -157,6 +157,7 @@ function developers_log_events($name, $type) {
  * Serve the theme preview pages
  *
  * @param array $page
+ * @return void
  */
 function developers_theme_preview_controller($page) {
 	if (!isset($page[0])) {
diff --git a/mod/diagnostics/start.php b/mod/diagnostics/start.php
index 735e15042..0bcc08bd9 100644
--- a/mod/diagnostics/start.php
+++ b/mod/diagnostics/start.php
@@ -12,9 +12,6 @@ elgg_register_event_handler('init', 'system', 'diagnostics_init');
  */
 function diagnostics_init() {
 
-	// Register a page handler, so we can have nice URLs
-	elgg_register_page_handler('diagnostics','diagnostics_page_handler');
-
 	// Add admin menu item
 	elgg_register_admin_menu_item('develop', 'diagnostics', 'develop_utilities');
 
diff --git a/mod/externalpages/start.php b/mod/externalpages/start.php
index 3169503be..271051ba9 100644
--- a/mod/externalpages/start.php
+++ b/mod/externalpages/start.php
@@ -53,6 +53,7 @@ function expages_setup_footer_menu() {
  *
  * @param array  $page    URL segements
  * @param string $handler Handler identifier
+ * @return void
  */
 function expages_page_handler($page, $handler) {
 	if ($handler == 'expages') {
diff --git a/mod/file/start.php b/mod/file/start.php
index 9007fc9ba..bb20fc7ba 100644
--- a/mod/file/start.php
+++ b/mod/file/start.php
@@ -100,7 +100,7 @@ function file_init() {
  * Title is ignored
  *
  * @param array $page
- * @return NULL
+ * @return void
  */
 function file_page_handler($page) {
 
@@ -136,7 +136,6 @@ function file_page_handler($page) {
 			include "$file_dir/owner.php";
 			break;
 		case 'all':
-		default:
 			include "$file_dir/world.php";
 			break;
 	}
@@ -145,10 +144,10 @@ function file_page_handler($page) {
 /**
  * Creates the notification message body
  *
- * @param unknown_type $hook
- * @param unknown_type $entity_type
- * @param unknown_type $returnvalue
- * @param unknown_type $params
+ * @param string $hook
+ * @param string $entity_type
+ * @param string $returnvalue
+ * @param array  $params
  */
 function file_notify_message($hook, $entity_type, $returnvalue, $params) {
 	$entity = $params['entity'];
diff --git a/mod/groups/start.php b/mod/groups/start.php
index 1b5b03ce7..710ccc0b2 100644
--- a/mod/groups/start.php
+++ b/mod/groups/start.php
@@ -192,6 +192,7 @@ function groups_setup_sidebar_menus() {
  *  Group members:        groups/members/<guid>
  *
  * @param array $page Array of url segments for routing
+ * @return void
  */
 function groups_page_handler($page) {
 
@@ -244,7 +245,8 @@ function groups_page_handler($page) {
 /**
  * Handle group icons.
  *
- * @param unknown_type $page
+ * @param array $page
+ * @return void
  */
 function groups_icon_handler($page) {
 
@@ -750,6 +752,7 @@ function discussion_init() {
  *  Edit discussion topic: discussion/edit/<guid>
  *
  * @param array $page Array of url segments for routing
+ * @return void
  */
 function discussion_page_handler($page) {
 
diff --git a/mod/invitefriends/start.php b/mod/invitefriends/start.php
index f39d25f4b..61cfed96c 100644
--- a/mod/invitefriends/start.php
+++ b/mod/invitefriends/start.php
@@ -27,6 +27,7 @@ function invitefriends_init() {
  * Page handler function
  * 
  * @param array $page Page URL segments
+ * @return void
  */
 function invitefriends_page_handler($page) {
 	gatekeeper();
diff --git a/mod/members/start.php b/mod/members/start.php
index 2c1793c17..1d734da17 100644
--- a/mod/members/start.php
+++ b/mod/members/start.php
@@ -19,6 +19,7 @@ function members_init() {
  * Members page handler
  *
  * @param array $page url segments
+ * @return void
  */
 function members_page_handler($page) {
 	$base = elgg_get_plugins_path() . 'members/pages/members';
diff --git a/mod/messageboard/start.php b/mod/messageboard/start.php
index 0b0155069..9db16cf3b 100644
--- a/mod/messageboard/start.php
+++ b/mod/messageboard/start.php
@@ -42,7 +42,7 @@ function messageboard_init() {
  *  Group messageboard:                messageboard/group/<guid>/all (not implemented)
  *
  * @param array $page Array of page elements
- * @return bool
+ * @return void
  */
 function messageboard_page_handler($page) {
 	$new_section_one = array('owner', 'add', 'group');
@@ -85,8 +85,6 @@ function messageboard_page_handler($page) {
 			include "$pages/owner.php";
 			break;
 	}
-
-	return true;
 }
 
 /**
diff --git a/mod/messages/start.php b/mod/messages/start.php
index 4a3b0b250..631a5f731 100644
--- a/mod/messages/start.php
+++ b/mod/messages/start.php
@@ -70,7 +70,7 @@ function messages_init() {
  * Messages page handler
  *
  * @param array $page Array of URL components for routing
- * @return bool
+ * @return void
  */
 function messages_page_handler($page) {
 
@@ -112,11 +112,7 @@ function messages_page_handler($page) {
 		case 'add':
 			include("$base_dir/send.php");
 			break;
-		default:
-			return false;
 	}
-
-	return true;
 }
 
 /**
diff --git a/mod/notifications/start.php b/mod/notifications/start.php
index c6701cc3e..7ec82cfc9 100644
--- a/mod/notifications/start.php
+++ b/mod/notifications/start.php
@@ -36,6 +36,7 @@ function notifications_plugin_init() {
  * Route page requests
  *
  * @param array $page Array of url parameters
+ * @return void
  */
 function notifications_page_handler($page) {
 
@@ -51,12 +52,9 @@ function notifications_page_handler($page) {
 			require "$base/groups.php";
 			break;
 		case 'personal':
-		default:
 			require "$base/index.php";
 			break;
 	}
-
-	return TRUE;
 }
 
 /**
diff --git a/mod/pages/start.php b/mod/pages/start.php
index 744306649..fd1d7df47 100644
--- a/mod/pages/start.php
+++ b/mod/pages/start.php
@@ -100,6 +100,7 @@ function pages_init() {
  * Title is ignored
  *
  * @param array $page
+ * @return void
  */
 function pages_page_handler($page) {
 
@@ -149,12 +150,9 @@ function pages_page_handler($page) {
 			include "$base_dir/revision.php";
 			break;
 		case 'all':
-		default:
 			include "$base_dir/world.php";
 			break;
 	}
-
-	return;
 }
 
 /**
diff --git a/mod/profile/start.php b/mod/profile/start.php
index 0f13ad844..1c82d55f5 100644
--- a/mod/profile/start.php
+++ b/mod/profile/start.php
@@ -48,6 +48,7 @@ function profile_init() {
  * Profile page handler
  *
  * @param array $page Array of URL segments passed by the page handling mechanism
+ * @return void
  */
 function profile_page_handler($page) {
 
diff --git a/mod/reportedcontent/start.php b/mod/reportedcontent/start.php
index 66a1248d9..0638feb52 100644
--- a/mod/reportedcontent/start.php
+++ b/mod/reportedcontent/start.php
@@ -60,6 +60,7 @@ function reportedcontent_init() {
  * Serves the add report page
  *
  * @param array $page Array of page routing elements
+ * @return void
  */
 function reportedcontent_page_handler($page) {
 	// only logged in users can report things
diff --git a/mod/search/start.php b/mod/search/start.php
index 9ab14f42f..a88c6ec03 100644
--- a/mod/search/start.php
+++ b/mod/search/start.php
@@ -14,7 +14,7 @@ function search_init() {
 	require_once 'search_hooks.php';
 
 	// page handler for search actions and results
-	elgg_register_page_handler('search','search_page_handler');
+	elgg_register_page_handler('search', 'search_page_handler');
 
 	// register some default search hooks
 	elgg_register_plugin_hook_handler('search', 'object', 'search_objects_hook');
@@ -55,7 +55,8 @@ function search_init() {
 /**
  * Page handler for search
  *
- * @param array $page Page elements from pain page handler
+ * @param array $page Page elements from core page handler
+ * @return void
  */
 function search_page_handler($page) {
 
diff --git a/mod/thewire/start.php b/mod/thewire/start.php
index d5e995359..f46d9ec75 100644
--- a/mod/thewire/start.php
+++ b/mod/thewire/start.php
@@ -84,58 +84,57 @@ function thewire_init() {
  * thewire/tag/<tag>            View wire posts tagged with <tag>
  *
  * @param array $page From the page_handler function
- * @return true|false Depending on success
+ * @return void
  */
 function thewire_page_handler($page) {
 
 	$base_dir = elgg_get_plugins_path() . 'thewire/pages/thewire';
 
-	// if just /thewire go to global view in the else statement
-	if (isset($page[0]) && $page[0]) {
-
-		switch ($page[0]) {
-			case "all":
-				include "$base_dir/everyone.php";
-				break;
-
-			case "friends":
-				include "$base_dir/friends.php";
-				break;
-
-			case "owner":
-				include "$base_dir/owner.php";
-				break;
-
-			case "thread":
-				if (isset($page[1])) {
-					set_input('thread_id', $page[1]);
-				}
-				include "$base_dir/thread.php";
-				break;
-			case "reply":
-				if (isset($page[1])) {
-					set_input('guid', $page[1]);
-				}
-				include "$base_dir/reply.php";
-				break;
-			case "tag":
-				if (isset($page[1])) {
-					set_input('tag', $page[1]);
-				}
-				include "$base_dir/tag.php";
-				break;
-			case "previous":
-				if (isset($page[1])) {
-					set_input('guid', $page[1]);
-				}
-				include "$base_dir/previous.php";
-				break;
-		}
-	} else {
-		include "$base_dir/everyone.php";
+	if (!isset($page[0])) {
+		$page = array('all');
 	}
 
-	return true;
+	switch ($page[0]) {
+		case "all":
+			include "$base_dir/everyone.php";
+			break;
+
+		case "friends":
+			include "$base_dir/friends.php";
+			break;
+
+		case "owner":
+			include "$base_dir/owner.php";
+			break;
+
+		case "thread":
+			if (isset($page[1])) {
+				set_input('thread_id', $page[1]);
+			}
+			include "$base_dir/thread.php";
+			break;
+
+		case "reply":
+			if (isset($page[1])) {
+				set_input('guid', $page[1]);
+			}
+			include "$base_dir/reply.php";
+			break;
+
+		case "tag":
+			if (isset($page[1])) {
+				set_input('tag', $page[1]);
+			}
+			include "$base_dir/tag.php";
+			break;
+
+		case "previous":
+			if (isset($page[1])) {
+				set_input('guid', $page[1]);
+			}
+			include "$base_dir/previous.php";
+			break;
+	}
 }
 
 /**
diff --git a/mod/twitter_api/start.php b/mod/twitter_api/start.php
index b17643c8c..fd2ff6493 100644
--- a/mod/twitter_api/start.php
+++ b/mod/twitter_api/start.php
@@ -45,13 +45,14 @@ function twitter_api_init() {
  * Handles old pg/twitterservice/ handler
  *
  * @param array $page
+ * @return void
  */
 function twitter_api_pagehandler_deprecated($page) {
 	$url = elgg_get_site_url() . 'pg/twitter_api/authorize';
 	$msg = elgg_echo('twitter_api:deprecated_callback_url', array($url));
 	register_error($msg);
 
-	return twitter_api_pagehandler($page);
+	twitter_api_pagehandler($page);
 }
 
 
@@ -59,10 +60,11 @@ function twitter_api_pagehandler_deprecated($page) {
  * Serves pages for twitter.
  *
  * @param array $page
+ * @return void
  */
 function twitter_api_pagehandler($page) {
 	if (!isset($page[0])) {
-		forward();
+		return;
 	}
 
 	switch ($page[0]) {
@@ -90,9 +92,6 @@ function twitter_api_pagehandler($page) {
 			$pages = dirname(__FILE__) . '/pages/twitter_api';
 			include "$pages/interstitial.php";
 			break;
-		default:
-			forward();
-			break;
 	}
 }
 
diff --git a/mod/uservalidationbyemail/start.php b/mod/uservalidationbyemail/start.php
index d3d0c3488..a674511cf 100644
--- a/mod/uservalidationbyemail/start.php
+++ b/mod/uservalidationbyemail/start.php
@@ -149,6 +149,7 @@ function uservalidationbyemail_check_auth_attempt($credentials) {
  * Checks sent passed validation code and user guids and validates the user.
  *
  * @param array $page
+ * @return void
  */
 function uservalidationbyemail_page_handler($page) {
 
@@ -162,7 +163,7 @@ function uservalidationbyemail_page_handler($page) {
 
 		$user = get_entity($user_guid);
 
-		if (($code) && ($user)) {
+		if ($code && $user) {
 			if (uservalidationbyemail_validate_email($user_guid, $code)) {
 
 				elgg_push_context('uservalidationbyemail_validate_user');
@@ -184,7 +185,8 @@ function uservalidationbyemail_page_handler($page) {
 		register_error(elgg_echo('email:confirm:fail'));
 	}
 
-	forward();
+	// forward to front page
+	forward('');
 }
 
 /**