X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=index.php;h=ca7b4217a7fec420e92e56b030257ba2bac55845;hb=bf0b98017decf73123891e935993f2921d3b0acf;hp=943763a5110ce54c6dc9543ee2b0615e33ed523a;hpb=869a4394661bf1399f44d3f745b0a15c3224d5b2;p=friendica.git

diff --git a/index.php b/index.php
index 943763a511..ca7b4217a7 100644
--- a/index.php
+++ b/index.php
@@ -1,147 +1,140 @@
 <?php
-
-
 /**
- *
+ * @file index.php
  * Friendica
- *
  */
 
 /**
- *
- * bootstrap the application
- *
+ * Bootstrap the application
  */
 
-require_once('boot.php');
-require_once('object/BaseObject.php');
+use Friendica\App;
+use Friendica\BaseObject;
+use Friendica\Content\Nav;
+use Friendica\Core\Addon;
+use Friendica\Core\Config;
+use Friendica\Core\L10n;
+use Friendica\Core\Session;
+use Friendica\Core\System;
+use Friendica\Core\Theme;
+use Friendica\Core\Worker;
+use Friendica\Database\DBM;
+use Friendica\Model\Profile;
+use Friendica\Module\Login;
+
+require_once 'boot.php';
+
+if (empty($a)) {
+	$a = new App(__DIR__);
+}
+BaseObject::setApp($a);
 
-$a = new App;
-BaseObject::set_app($a);
+// We assume that the index.php is called by a frontend process
+// The value is set to "true" by default in boot.php
+$a->backend = false;
 
 /**
- *
  * Load the configuration file which contains our DB credentials.
- * Ignore errors. If the file doesn't exist or is empty, we are running in installation mode.
- *
+ * Ignore errors. If the file doesn't exist or is empty, we are running in
+ * installation mode.
  */
 
 $install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
 
-@include(".htconfig.php");
-
-
-
-
+// Only load config if found, don't surpress errors
+if (!$install) {
+	include ".htconfig.php";
+}
 
 /**
- *
  * Try to open the database;
- *
  */
 
-require_once("include/dba.php");
-require_once("include/dbm.php");
+require_once "include/dba.php";
 
-if(!$install) {
-	$db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
-	    unset($db_host, $db_user, $db_pass, $db_data);
+if (!$install) {
+	dba::connect($db_host, $db_user, $db_pass, $db_data, $install);
+	unset($db_host, $db_user, $db_pass, $db_data);
 
 	/**
 	 * Load configs from db. Overwrite configs from .htconfig.php
 	 */
 
-	load_config('config');
-	load_config('system');
-
-	$processlist = dbm::processlist();
-	if ($processlist["list"] != "") {
-
-		logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
-
-		$max_processes = get_config('system', 'max_processes_frontend');
-		if (intval($max_processes) == 0)
-			$max_processes = 20;
+	Config::load();
 
-		if ($processlist["amount"] > $max_processes) {
-			logger("Processcheck: Maximum number of processes for frontend tasks (".$max_processes.") reached.", LOGGER_DEBUG);
-			system_unavailable();
-		}
-	}
-
-	$maxsysload_frontend = intval(get_config('system','maxloadavg_frontend'));
-	if($maxsysload_frontend < 1)
-		$maxsysload_frontend = 50;
-
-	$load = current_load();
-	if($load) {
-		if($load > $maxsysload_frontend) {
-			logger('system: load ' . $load . ' too high. Service Temporarily Unavailable.');
-			header($_SERVER["SERVER_PROTOCOL"].' 503 Service Temporarily Unavailable');
-			header('Retry-After: 300');
-			die("System is currently unavailable. Please try again later");
-		}
+	if ($a->max_processes_reached() || $a->maxload_reached()) {
+		header($_SERVER["SERVER_PROTOCOL"] . ' 503 Service Temporarily Unavailable');
+		header('Retry-After: 120');
+		header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
+		die("System is currently unavailable. Please try again later");
 	}
 
-
-	if (get_config('system','force_ssl') AND ($a->get_scheme() == "http") AND
-		(intval(get_config('system','ssl_policy')) == SSL_POLICY_FULL) AND
-		(substr($a->get_baseurl(), 0, 8) == "https://")) {
+	if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
+		&& (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
+		&& (substr(System::baseUrl(), 0, 8) == "https://")
+		&& ($_SERVER['REQUEST_METHOD'] == 'GET')) {
 		header("HTTP/1.1 302 Moved Temporarily");
-		header("Location: ".$a->get_baseurl()."/".$a->query_string);
+		header("Location: " . System::baseUrl() . "/" . $a->query_string);
 		exit();
 	}
 
-	require_once("include/session.php");
-	load_hooks();
-	call_hooks('init_1');
+	Session::init();
+	Addon::loadHooks();
+	Addon::callHooks('init_1');
 
-	$maintenance = get_config('system', 'maintenance');
+	$maintenance = Config::get('system', 'maintenance');
 }
 
-$lang = get_browser_language();
+$lang = L10n::getBrowserLanguage();
 
-load_translation_table($lang);
+L10n::loadTranslationTable($lang);
 
 /**
- *
  * Important stuff we always need to do.
  *
  * The order of these may be important so use caution if you think they're all
  * intertwingled with no logical order and decide to sort it out. Some of the
  * dependencies have changed, but at least at one time in the recent past - the
  * order was critical to everything working properly
- *
  */
 
-$stamp1 = microtime(true);
-session_start();
-$a->save_timestamp($stamp1, "parser");
+// Exclude the backend processes from the session management
+if (!$a->is_backend()) {
+	$stamp1 = microtime(true);
+	session_start();
+	$a->save_timestamp($stamp1, "parser");
+} else {
+	$_SESSION = [];
+	Worker::executeIfIdle();
+}
 
 /**
  * Language was set earlier, but we can over-ride it in the session.
  * We have to do it here because the session was just now opened.
  */
-if (x($_SESSION,'authenticated') && !x($_SESSION,'language')) {
-	// we didn't loaded user data yet, but we need user language
-	$r = q("SELECT language FROM user WHERE uid=%d", intval($_SESSION['uid']));
+if (x($_SESSION, 'authenticated') && !x($_SESSION, 'language')) {
+	// we haven't loaded user data yet, but we need user language
+	$user = dba::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
 	$_SESSION['language'] = $lang;
-	if (count($r)>0) $_SESSION['language'] = $r[0]['language'];
+	if (DBM::is_result($user)) {
+		$_SESSION['language'] = $user['language'];
+	}
 }
 
-if((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {
+if ((x($_SESSION, 'language')) && ($_SESSION['language'] !== $lang)) {
 	$lang = $_SESSION['language'];
-	load_translation_table($lang);
+	L10n::loadTranslationTable($lang);
 }
 
-if((x($_GET,'zrl')) && (!$install && !$maintenance)) {
+if ((x($_GET, 'zrl')) && (!$install && !$maintenance)) {
 	// Only continue when the given profile link seems valid
 	// Valid profile links contain a path with "/profile/" and no query parameters
-	if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") AND
-		strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
+	if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "")
+		&& strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")
+	) {
 		$_SESSION['my_url'] = $_GET['zrl'];
-		$a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is','',$a->query_string);
-		zrl_init($a);
+		$a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is', '', $a->query_string);
+		Profile::zrlInit($a);
 	} else {
 		// Someone came with an invalid parameter, maybe as a DDoS attempt
 		// We simply stop processing here
@@ -153,68 +146,61 @@ if((x($_GET,'zrl')) && (!$install && !$maintenance)) {
 }
 
 /**
- *
  * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
  * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
  * this way. There's a PHP flag to link the headers because by default this will over-write any other
  * link header.
  *
  * What we really need to do is output the raw headers ourselves so we can keep them separate.
- *
  */
 
-// header('Link: <' . $a->get_baseurl() . '/amcd>; rel="acct-mgmt";');
+// header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
 
-if(x($_COOKIE["Friendica"]) || (x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login'))
-	require("include/auth.php");
+Login::sessionAuth();
 
-if(! x($_SESSION,'authenticated'))
+if (! x($_SESSION, 'authenticated')) {
 	header('X-Account-Management-Status: none');
+}
 
 /* set up page['htmlhead'] and page['end'] for the modules to use */
 $a->page['htmlhead'] = '';
 $a->page['end'] = '';
 
-
-if(! x($_SESSION,'sysmsg'))
-	$_SESSION['sysmsg'] = array();
-
-if(! x($_SESSION,'sysmsg_info'))
-	$_SESSION['sysmsg_info'] = array();
+$_SESSION['sysmsg']       = defaults($_SESSION, 'sysmsg'      , []);
+$_SESSION['sysmsg_info']  = defaults($_SESSION, 'sysmsg_info' , []);
+$_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
 
 /*
  * check_config() is responsible for running update scripts. These automatically
  * update the DB schema whenever we push a new one out. It also checks to see if
- * any plugins have been added or removed and reacts accordingly.
+ * any addons have been added or removed and reacts accordingly.
  */
 
 // in install mode, any url loads install module
 // but we need "view" module for stylesheet
-if($install && $a->module!="view")
+if ($install && $a->module!="view") {
 	$a->module = 'install';
-elseif($maintenance && $a->module!="view")
+} elseif ($maintenance && $a->module!="view") {
 	$a->module = 'maintenance';
-else {
+} else {
 	check_url($a);
-	check_db();
-	check_plugins($a);
+	check_db(false);
+	check_addons($a);
 }
 
-nav_set_selected('nothing');
+Nav::setSelected('nothing');
 
 //Don't populate apps_menu if apps are private
-$privateapps = get_config('config','private_addons');
-if((local_user()) || (! $privateapps === "1"))
-{
-	$arr = array('app_menu' => $a->apps);
+$privateapps = Config::get('config', 'private_addons');
+if ((local_user()) || (! $privateapps === "1")) {
+	$arr = ['app_menu' => $a->apps];
 
-	call_hooks('app_menu', $arr);
+	Addon::callHooks('app_menu', $arr);
 
 	$a->apps = $arr['app_menu'];
 }
 
 /**
- *
  * We have already parsed the server path into $a->argc and $a->argv
  *
  * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
@@ -231,49 +217,53 @@ if((local_user()) || (! $privateapps === "1"))
  * so within the module init and/or post functions and then invoke killme() to terminate
  * further processing.
  */
-
-if(strlen($a->module)) {
+if (strlen($a->module)) {
 
 	/**
-	 *
 	 * We will always have a module name.
-	 * First see if we have a plugin which is masquerading as a module.
-	 *
+	 * First see if we have an addon which is masquerading as a module.
 	 */
 
 	// Compatibility with the Android Diaspora client
-	if ($a->module == "stream")
+	if ($a->module == "stream") {
 		$a->module = "network";
+	}
 
 	// Compatibility with the Firefox App
-	if (($a->module == "users") AND ($a->cmd == "users/sign_in"))
+	if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
 		$a->module = "login";
+	}
 
-	$privateapps = get_config('config','private_addons');
+	$privateapps = Config::get('config', 'private_addons');
 
-	if(is_array($a->plugins) && in_array($a->module,$a->plugins) && file_exists("addon/{$a->module}/{$a->module}.php")) {
+	if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
 		//Check if module is an app and if public access to apps is allowed or not
-		if((!local_user()) && plugin_is_app($a->module) && $privateapps === "1") {
-			info( t("You must be logged in to use addons. "));
-		}
-		else {
-			include_once("addon/{$a->module}/{$a->module}.php");
-			if(function_exists($a->module . '_module'))
+		if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
+			info(L10n::t("You must be logged in to use addons. "));
+		} else {
+			include_once "addon/{$a->module}/{$a->module}.php";
+			if (function_exists($a->module . '_module')) {
 				$a->module_loaded = true;
+			}
 		}
 	}
 
+	// Controller class routing
+	if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
+		$a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
+		$a->module_loaded = true;
+	}
+
 	/**
 	 * If not, next look for a 'standard' program module in the 'mod' directory
 	 */
 
-	if((! $a->module_loaded) && (file_exists("mod/{$a->module}.php"))) {
-		include_once("mod/{$a->module}.php");
+	if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
+		include_once "mod/{$a->module}.php";
 		$a->module_loaded = true;
 	}
 
 	/**
-	 *
 	 * The URL provided does not resolve to a valid module.
 	 *
 	 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
@@ -282,202 +272,190 @@ if(strlen($a->module)) {
 	 * this will often succeed and eventually do the right thing.
 	 *
 	 * Otherwise we are going to emit a 404 not found.
-	 *
 	 */
 
-	if(! $a->module_loaded) {
-
+	if (! $a->module_loaded) {
 		// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
-		if((x($_SERVER,'QUERY_STRING')) && preg_match('/{[0-9]}/',$_SERVER['QUERY_STRING']) !== 0) {
+		if ((x($_SERVER, 'QUERY_STRING')) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
 			killme();
 		}
 
-		if((x($_SERVER,'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
+		if ((x($_SERVER, 'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
 			logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
-			goaway($a->get_baseurl() . $_SERVER['REQUEST_URI']);
+			goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
 		}
 
 		logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
-		header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found'));
+		header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
 		$tpl = get_markup_template("404.tpl");
-		$a->page['content'] = replace_macros($tpl, array(
-			'$message' =>  t('Page not found.' )
-		));
+		$a->page['content'] = replace_macros(
+			$tpl,
+			[
+			'$message' =>  L10n::t('Page not found.')]
+		);
 	}
 }
 
 /**
- * load current theme info
+ * Load current theme info
  */
 $theme_info_file = "view/theme/".current_theme()."/theme.php";
-if (file_exists($theme_info_file)){
-	require_once($theme_info_file);
+if (file_exists($theme_info_file)) {
+	require_once $theme_info_file;
 }
 
 
 /* initialise content region */
 
-if(! x($a->page,'content'))
+if (! x($a->page, 'content')) {
 	$a->page['content'] = '';
+}
 
-if(!$install && !$maintenance)
-	call_hooks('page_content_top',$a->page['content']);
+if (!$install && !$maintenance) {
+	Addon::callHooks('page_content_top', $a->page['content']);
+}
 
 /**
  * Call module functions
  */
 
-if($a->module_loaded) {
+if ($a->module_loaded) {
 	$a->page['page_title'] = $a->module;
 	$placeholder = '';
 
-	if(function_exists($a->module . '_init')) {
-		call_hooks($a->module . '_mod_init', $placeholder);
+	if ($a->module_class) {
+		Addon::callHooks($a->module . '_mod_init', $placeholder);
+		call_user_func([$a->module_class, 'init']);
+	} else if (function_exists($a->module . '_init')) {
+		Addon::callHooks($a->module . '_mod_init', $placeholder);
 		$func = $a->module . '_init';
 		$func($a);
 	}
 
-	if(function_exists(str_replace('-','_',current_theme()) . '_init')) {
-		$func = str_replace('-','_',current_theme()) . '_init';
+	if (function_exists(str_replace('-', '_', current_theme()) . '_init')) {
+		$func = str_replace('-', '_', current_theme()) . '_init';
 		$func($a);
 	}
-//	elseif (x($a->theme_info,"extends") && file_exists("view/theme/".$a->theme_info["extends"]."/theme.php")) {
-//		require_once("view/theme/".$a->theme_info["extends"]."/theme.php");
-//		if(function_exists(str_replace('-','_',$a->theme_info["extends"]) . '_init')) {
-//			$func = str_replace('-','_',$a->theme_info["extends"]) . '_init';
-//			$func($a);
-//		}
-//	}
-
-	if(($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
-		&& (function_exists($a->module . '_post'))
-		&& (! x($_POST,'auth-params'))) {
-		call_hooks($a->module . '_mod_post', $_POST);
-		$func = $a->module . '_post';
-		$func($a);
+
+	if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
+		Addon::callHooks($a->module . '_mod_post', $_POST);
+		if ($a->module_class) {
+			call_user_func([$a->module_class, 'post']);
+		} else if (function_exists($a->module . '_post')) {
+			$func = $a->module . '_post';
+			$func($a);
+		}
 	}
 
-	if((! $a->error) && (function_exists($a->module . '_afterpost'))) {
-		call_hooks($a->module . '_mod_afterpost',$placeholder);
-		$func = $a->module . '_afterpost';
-		$func($a);
+	if (! $a->error) {
+		Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
+		if ($a->module_class) {
+			call_user_func([$a->module_class, 'afterpost']);
+		} else if (function_exists($a->module . '_afterpost')) {
+			$func = $a->module . '_afterpost';
+			$func($a);
+		}
 	}
 
-	if((! $a->error) && (function_exists($a->module . '_content'))) {
-		$arr = array('content' => $a->page['content']);
-		call_hooks($a->module . '_mod_content', $arr);
+	if (! $a->error) {
+		$arr = ['content' => $a->page['content']];
+		Addon::callHooks($a->module . '_mod_content', $arr);
 		$a->page['content'] = $arr['content'];
-		$func = $a->module . '_content';
-		$arr = array('content' => $func($a));
-		call_hooks($a->module . '_mod_aftercontent', $arr);
+		if ($a->module_class) {
+			$arr = ['content' => call_user_func([$a->module_class, 'content'])];
+		} else if (function_exists($a->module . '_content')) {
+			$func = $a->module . '_content';
+			$arr = ['content' => $func($a)];
+		}
+		Addon::callHooks($a->module . '_mod_aftercontent', $arr);
 		$a->page['content'] .= $arr['content'];
 	}
 
-	if(function_exists(str_replace('-','_',current_theme()) . '_content_loaded')) {
-		$func = str_replace('-','_',current_theme()) . '_content_loaded';
+	if (function_exists(str_replace('-', '_', current_theme()) . '_content_loaded')) {
+		$func = str_replace('-', '_', current_theme()) . '_content_loaded';
 		$func($a);
 	}
 }
 
 /*
  * Create the page head after setting the language
- * and getting any auth credentials
+ * and getting any auth credentials.
  *
  * Moved init_pagehead() and init_page_end() to after
  * all the module functions have executed so that all
- * theme choices made by the modules can take effect
+ * theme choices made by the modules can take effect.
  */
 
 $a->init_pagehead();
 
-/**
+/*
  * Build the page ending -- this is stuff that goes right before
  * the closing </body> tag
  */
-
 $a->init_page_end();
 
 // If you're just visiting, let javascript take you home
-
-if(x($_SESSION,'visitor_home'))
+if (x($_SESSION, 'visitor_home')) {
 	$homebase = $_SESSION['visitor_home'];
-elseif(local_user())
+} elseif (local_user()) {
 	$homebase = 'profile/' . $a->user['nickname'];
+}
 
-if(isset($homebase))
+if (isset($homebase)) {
 	$a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
-
-// now that we've been through the module content, see if the page reported
-// a permission problem and if so, a 403 response would seem to be in order.
-
-if(stristr( implode("",$_SESSION['sysmsg']), t('Permission denied'))) {
-	header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . t('Permission denied.'));
 }
 
-/**
- *
- * Report anything which needs to be communicated in the notification area (before the main body)
- *
+/*
+ * now that we've been through the module content, see if the page reported
+ * a permission problem and if so, a 403 response would seem to be in order.
  */
-
-/*if(x($_SESSION,'sysmsg')) {
-	$a->page['content'] = "<div id=\"sysmsg\" class=\"error-message\">{$_SESSION['sysmsg']}</div>\r\n"
-		. ((x($a->page,'content')) ? $a->page['content'] : '');
-	$_SESSION['sysmsg']="";
-	unset($_SESSION['sysmsg']);
+if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
+	header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
 }
-if(x($_SESSION,'sysmsg_info')) {
-	$a->page['content'] = "<div id=\"sysmsg_info\" class=\"info-message\">{$_SESSION['sysmsg_info']}</div>\r\n"
-		. ((x($a->page,'content')) ? $a->page['content'] : '');
-	$_SESSION['sysmsg_info']="";
-	unset($_SESSION['sysmsg_info']);
-}*/
-
-
-
-call_hooks('page_end', $a->page['content']);
 
+/*
+ * Report anything which needs to be communicated in the notification area (before the main body)
+ */
+Addon::callHooks('page_end', $a->page['content']);
 
-/**
- *
+/*
  * Add the navigation (menu) template
- *
  */
-
-if($a->module != 'install' && $a->module != 'maintenance') {
-	nav($a);
+if ($a->module != 'install' && $a->module != 'maintenance') {
+	Nav::build($a);
 }
 
-/**
+/*
  * Add a "toggle mobile" link if we're using a mobile device
  */
-
-if($a->is_mobile || $a->is_tablet) {
-	if(isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
+if ($a->is_mobile || $a->is_tablet) {
+	if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
 		$link = 'toggle_mobile?address=' . curPageURL();
-	}
-	else {
+	} else {
 		$link = 'toggle_mobile?off=1&address=' . curPageURL();
 	}
-	$a->page['footer'] = replace_macros(get_markup_template("toggle_mobile_footer.tpl"), array(
-				'$toggle_link' => $link,
-				'$toggle_text' => t('toggle mobile')
-			 ));
+	$a->page['footer'] = replace_macros(
+		get_markup_template("toggle_mobile_footer.tpl"),
+		[
+			'$toggle_link' => $link,
+			'$toggle_text' => L10n::t('toggle mobile')]
+	);
 }
 
 /**
  * Build the page - now that we have all the components
  */
 
-if(!$a->theme['stylesheet'])
+if (!$a->theme['stylesheet']) {
 	$stylesheet = current_theme_url();
-else
+} else {
 	$stylesheet = $a->theme['stylesheet'];
+}
 
-$a->page['htmlhead'] = str_replace('{{$stylesheet}}',$stylesheet,$a->page['htmlhead']);
+$a->page['htmlhead'] = str_replace('{{$stylesheet}}', $stylesheet, $a->page['htmlhead']);
 //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
 
-if (isset($_GET["mode"]) AND (($_GET["mode"] == "raw") OR ($_GET["mode"] == "minimal"))) {
+if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
 	$doc = new DOMDocument();
 
 	$target = new DOMDocument();
@@ -485,14 +463,14 @@ if (isset($_GET["mode"]) AND (($_GET["mode"] == "raw") OR ($_GET["mode"] == "min
 
 	$content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
 
+	/// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
 	@$doc->loadHTML($content);
 
-	$xpath = new DomXPath($doc);
+	$xpath = new DOMXPath($doc);
 
 	$list = $xpath->query("//*[contains(@id,'tread-wrapper-')]");  /* */
 
 	foreach ($list as $item) {
-
 		$item = $target->importNode($item, true);
 
 		// And then append it to the target
@@ -500,38 +478,48 @@ if (isset($_GET["mode"]) AND (($_GET["mode"] == "raw") OR ($_GET["mode"] == "min
 	}
 }
 
-if (isset($_GET["mode"]) AND ($_GET["mode"] == "raw")) {
-
+if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
 	header("Content-type: text/html; charset=utf-8");
 
 	echo substr($target->saveHTML(), 6, -8);
 
-	session_write_close();
-	exit;
-
+	killme();
 }
 
 $page    = $a->page;
 $profile = $a->profile;
 
-header("X-Friendica-Version: ".FRIENDICA_VERSION);
+header("X-Friendica-Version: " . FRIENDICA_VERSION);
 header("Content-type: text/html; charset=utf-8");
 
+if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
+	header("Strict-Transport-Security: max-age=31536000");
+}
+
+// Some security stuff
+header('X-Content-Type-Options: nosniff');
+header('X-XSS-Protection: 1; mode=block');
+header('X-Permitted-Cross-Domain-Policies: none');
+header('X-Frame-Options: sameorigin');
 
-if (isset($_GET["mode"]) AND ($_GET["mode"] == "minimal")) {
-	//$page['content'] = substr($target->saveHTML(), 6, -8)."\n\n".
-	//			'<div id="conversation-end"></div>'."\n\n";
+// Things like embedded OSM maps don't work, when this is enabled
+// header("Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; connect-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self'; img-src 'self' https: data:; media-src 'self' https:; child-src 'self' https:; object-src 'none'");
 
-	require "view/minimal.php";
-} else {
-	$template = 'view/theme/' . current_theme() . '/'
-		. ((x($a->page,'template')) ? $a->page['template'] : 'default' ) . '.php';
+/*
+ * We use $_GET["mode"] for special page templates. So we will check if we have
+ * to load another page template than the default one.
+ * The page templates are located in /view/php/ or in the theme directory.
+ */
+if (isset($_GET["mode"])) {
+	$template = Theme::getPathForFile($_GET["mode"] . '.php');
+}
 
-	if(file_exists($template))
-		require_once($template);
-	else
-		require_once(str_replace('theme/' . current_theme() . '/', '', $template));
+// If there is no page template use the default page template
+if (empty($template)) {
+	$template = Theme::getPathForFile("default.php");
 }
 
-session_write_close();
-exit;
+/// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
+require_once $template;
+
+killme();