]> git.mxchange.org Git - friendica.git/blobdiff - src/App.php
Add sample route for /itemsource
[friendica.git] / src / App.php
index b910765e12f02c35719523d9c9393c6a2cfd86f6..d5698bdb769cfd9571546e3cec2b844deb394c2e 100644 (file)
@@ -8,8 +8,18 @@ use Detection\MobileDetect;
 use DOMDocument;
 use DOMXPath;
 use Exception;
+use FastRoute\RouteCollector;
+use Friendica\Core\Config\Cache\IConfigCache;
+use Friendica\Core\Config\Configuration;
+use Friendica\Core\Hook;
+use Friendica\Core\Theme;
 use Friendica\Database\DBA;
+use Friendica\Model\Profile;
 use Friendica\Network\HTTPException\InternalServerErrorException;
+use Friendica\Util\Config\ConfigFileLoader;
+use Friendica\Util\HTTPSignature;
+use Friendica\Util\Profiler;
+use Friendica\Util\Strings;
 use Psr\Log\LoggerInterface;
 
 /**
@@ -27,10 +37,8 @@ use Psr\Log\LoggerInterface;
  */
 class App
 {
-       public $module_loaded = false;
        public $module_class = null;
        public $query_string = '';
-       public $config = [];
        public $page = [];
        public $profile;
        public $profile_uid;
@@ -51,8 +59,6 @@ class App
        public $identities;
        public $is_mobile = false;
        public $is_tablet = false;
-       public $performance = [];
-       public $callstack = [];
        public $theme_info = [];
        public $category;
        // Allow themes to control internal parameters
@@ -72,11 +78,6 @@ class App
         */
        private $mode;
 
-       /**
-        * @var string The App base path
-        */
-       private $basePath;
-
        /**
         * @var string The App URL path
         */
@@ -108,10 +109,70 @@ class App
        public $mobileDetect;
 
        /**
-        * @var LoggerInterface The current logger of this App
+        * @var Configuration The config
+        */
+       private $config;
+
+       /**
+        * @var LoggerInterface The logger
         */
        private $logger;
 
+       /**
+        * @var Profiler The profiler of this app
+        */
+       private $profiler;
+
+       /**
+        * Returns the current config cache of this node
+        *
+        * @return IConfigCache
+        */
+       public function getConfigCache()
+       {
+               return $this->config->getCache();
+       }
+
+       /**
+        * The basepath of this app
+        *
+        * @return string
+        */
+       public function getBasePath()
+       {
+               return $this->config->get('system', 'basepath');
+       }
+
+       /**
+        * The Logger of this app
+        *
+        * @return LoggerInterface
+        */
+       public function getLogger()
+       {
+               return $this->logger;
+       }
+
+       /**
+        * The profiler of this app
+        *
+        * @return Profiler
+        */
+       public function getProfiler()
+       {
+               return $this->profiler;
+       }
+
+       /**
+        * Returns the Mode of the Application
+        *
+        * @return App\Mode The Application Mode
+        */
+       public function getMode()
+       {
+               return $this->mode;
+       }
+
        /**
         * Register a stylesheet file path to be included in the <head> tag of every page.
         * Inclusion is done in App->initHead().
@@ -124,9 +185,11 @@ class App
         */
        public function registerStylesheet($path)
        {
-               $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
+               if (mb_strpos($path, $this->getBasePath() . DIRECTORY_SEPARATOR) === 0) {
+                       $path = mb_substr($path, mb_strlen($this->getBasePath() . DIRECTORY_SEPARATOR));
+               }
 
-               $this->stylesheets[] = trim($url, '/');
+               $this->stylesheets[] = trim($path, '/');
        }
 
        /**
@@ -146,7 +209,6 @@ class App
                $this->footerScripts[] = trim($url, '/');
        }
 
-       public $process_id;
        public $queue;
        private $scheme;
        private $hostname;
@@ -154,48 +216,27 @@ class App
        /**
         * @brief App constructor.
         *
-        * @param string           $basePath  Path to the app base folder
-        * @param LoggerInterface  $logger    Logger of this application
+        * @param Configuration    $config    The Configuration
+        * @param App\Mode         $mode      The mode of this Friendica app
+        * @param LoggerInterface  $logger    The current app logger
+        * @param Profiler         $profiler  The profiler of this application
         * @param bool             $isBackend Whether it is used for backend or frontend (Default true=backend)
         *
         * @throws Exception if the Basepath is not usable
         */
-       public function __construct($basePath, LoggerInterface $logger, $isBackend = true)
+       public function __construct(Configuration $config, App\Mode $mode, LoggerInterface $logger, Profiler $profiler, $isBackend = true)
        {
-               $this->logger = $logger;
-
-               if (!static::isDirectoryUsable($basePath, false)) {
-                       throw new Exception('Basepath ' . $basePath . ' isn\'t usable.');
-               }
-
                BaseObject::setApp($this);
 
-               $this->basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
+               $this->logger   = $logger;
+               $this->config   = $config;
+               $this->profiler = $profiler;
+               $this->mode     = $mode;
+
                $this->checkBackend($isBackend);
                $this->checkFriendicaApp();
 
-               $this->performance['start'] = microtime(true);
-               $this->performance['database'] = 0;
-               $this->performance['database_write'] = 0;
-               $this->performance['cache'] = 0;
-               $this->performance['cache_write'] = 0;
-               $this->performance['network'] = 0;
-               $this->performance['file'] = 0;
-               $this->performance['rendering'] = 0;
-               $this->performance['parser'] = 0;
-               $this->performance['marktime'] = 0;
-               $this->performance['markstart'] = microtime(true);
-
-               $this->callstack['database'] = [];
-               $this->callstack['database_write'] = [];
-               $this->callstack['cache'] = [];
-               $this->callstack['cache_write'] = [];
-               $this->callstack['network'] = [];
-               $this->callstack['file'] = [];
-               $this->callstack['rendering'] = [];
-               $this->callstack['parser'] = [];
-
-               $this->mode = new App\Mode($basePath);
+               $this->profiler->reset();
 
                $this->reload();
 
@@ -296,218 +337,31 @@ class App
                Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
        }
 
-       /**
-        * Returns the Mode of the Application
-        *
-        * @return App\Mode The Application Mode
-        *
-        * @throws InternalServerErrorException when the mode isn't created
-        */
-       public function getMode()
-       {
-               if (empty($this->mode)) {
-                       throw new InternalServerErrorException('Mode of the Application is not defined');
-               }
-
-               return $this->mode;
-       }
-
-       /**
-        * Returns the Logger of the Application
-        *
-        * @return LoggerInterface The Logger
-        * @throws InternalServerErrorException when the logger isn't created
-        */
-       public function getLogger()
-       {
-               if (empty($this->logger)) {
-                       throw new InternalServerErrorException('Logger of the Application is not defined');
-               }
-
-               return $this->logger;
-       }
-
        /**
         * Reloads the whole app instance
         */
        public function reload()
        {
-               // The order of the following calls is important to ensure proper initialization
-               $this->loadConfigFiles();
-
-               $this->loadDatabase();
+               $this->determineURLPath();
 
                $this->getMode()->determine($this->getBasePath());
 
-               $this->determineURLPath();
+               if ($this->getMode()->has(App\Mode::DBAVAILABLE)) {
+                       $loader = new ConfigFileLoader($this->getBasePath(), $this->getMode());
+                       $this->config->getCache()->load($loader->loadCoreConfig('addon'), true);
 
-               Core\Config::load();
+                       $this->profiler->update(
+                               $this->config->get('system', 'profiler', false),
+                               $this->config->get('rendertime', 'callstack', false));
 
-               if ($this->getMode()->has(App\Mode::DBAVAILABLE)) {
                        Core\Hook::loadHooks();
-
-                       $this->loadAddonConfig();
+                       $loader = new ConfigFileLoader($this->getBasePath(), $this->mode);
+                       Core\Hook::callAll('load_config', $loader);
                }
 
                $this->loadDefaultTimezone();
 
                Core\L10n::init();
-
-               $this->process_id = Core\System::processID('log');
-
-               Core\Logger::setLogger($this->logger);
-       }
-
-       /**
-        * Load the configuration files
-        *
-        * First loads the default value for all the configuration keys, then the legacy configuration files, then the
-        * expected local.config.php
-        */
-       private function loadConfigFiles()
-       {
-               $this->loadConfigFile($this->getBasePath() . '/config/defaults.config.php');
-               $this->loadConfigFile($this->getBasePath() . '/config/settings.config.php');
-
-               // Legacy .htconfig.php support
-               if (file_exists($this->getBasePath() . '/.htpreconfig.php')) {
-                       $a = $this;
-                       include $this->getBasePath() . '/.htpreconfig.php';
-               }
-
-               // Legacy .htconfig.php support
-               if (file_exists($this->getBasePath() . '/.htconfig.php')) {
-                       $a = $this;
-
-                       include $this->getBasePath() . '/.htconfig.php';
-
-                       $this->setConfigValue('database', 'hostname', $db_host);
-                       $this->setConfigValue('database', 'username', $db_user);
-                       $this->setConfigValue('database', 'password', $db_pass);
-                       $this->setConfigValue('database', 'database', $db_data);
-                       if (isset($a->config['system']['db_charset'])) {
-                               $this->setConfigValue('database', 'charset', $a->config['system']['db_charset']);
-                       }
-
-                       unset($db_host, $db_user, $db_pass, $db_data);
-
-                       if (isset($default_timezone)) {
-                               $this->setConfigValue('system', 'default_timezone', $default_timezone);
-                               unset($default_timezone);
-                       }
-
-                       if (isset($pidfile)) {
-                               $this->setConfigValue('system', 'pidfile', $pidfile);
-                               unset($pidfile);
-                       }
-
-                       if (isset($lang)) {
-                               $this->setConfigValue('system', 'language', $lang);
-                               unset($lang);
-                       }
-               }
-
-               if (file_exists($this->getBasePath() . '/config/local.config.php')) {
-                       $this->loadConfigFile($this->getBasePath() . '/config/local.config.php', true);
-               } elseif (file_exists($this->getBasePath() . '/config/local.ini.php')) {
-                       $this->loadINIConfigFile($this->getBasePath() . '/config/local.ini.php', true);
-               }
-       }
-
-       /**
-        * Tries to load the specified legacy configuration file into the App->config array.
-        * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
-        *
-        * @deprecated since version 2018.12
-        * @param string $filepath
-        * @param bool $overwrite Force value overwrite if the config key already exists
-        * @throws Exception
-        */
-       public function loadINIConfigFile($filepath, $overwrite = false)
-       {
-               if (!file_exists($filepath)) {
-                       throw new Exception('Error parsing non-existent INI config file ' . $filepath);
-               }
-
-               $contents = include($filepath);
-
-               $config = parse_ini_string($contents, true, INI_SCANNER_TYPED);
-
-               if ($config === false) {
-                       throw new Exception('Error parsing INI config file ' . $filepath);
-               }
-
-               $this->loadConfigArray($config, $overwrite);
-       }
-
-       /**
-        * Tries to load the specified configuration file into the App->config array.
-        * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
-        *
-        * The config format is PHP array and the template for configuration files is the following:
-        *
-        * <?php return [
-        *      'section' => [
-        *          'key' => 'value',
-        *      ],
-        * ];
-        *
-        * @param string $filepath
-        * @param bool $overwrite Force value overwrite if the config key already exists
-        * @throws Exception
-        */
-       public function loadConfigFile($filepath, $overwrite = false)
-       {
-               if (!file_exists($filepath)) {
-                       throw new Exception('Error loading non-existent config file ' . $filepath);
-               }
-
-               $config = include($filepath);
-
-               if (!is_array($config)) {
-                       throw new Exception('Error loading config file ' . $filepath);
-               }
-
-               $this->loadConfigArray($config, $overwrite);
-       }
-
-       /**
-        * Loads addons configuration files
-        *
-        * First loads all activated addons default configuration through the load_config hook, then load the local.config.php
-        * again to overwrite potential local addon configuration.
-        */
-       private function loadAddonConfig()
-       {
-               // Loads addons default config
-               Core\Hook::callAll('load_config');
-
-               // Load the local addon config file to overwritten default addon config values
-               if (file_exists($this->getBasePath() . '/config/addon.config.php')) {
-                       $this->loadConfigFile($this->getBasePath() . '/config/addon.config.php', true);
-               } elseif (file_exists($this->getBasePath() . '/config/addon.ini.php')) {
-                       $this->loadINIConfigFile($this->getBasePath() . '/config/addon.ini.php', true);
-               }
-       }
-
-       /**
-        * Tries to load the specified configuration array into the App->config array.
-        * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
-        *
-        * @param array $config
-        * @param bool  $overwrite Force value overwrite if the config key already exists
-        */
-       private function loadConfigArray(array $config, $overwrite = false)
-       {
-               foreach ($config as $category => $values) {
-                       foreach ($values as $key => $value) {
-                               if ($overwrite) {
-                                       $this->setConfigValue($category, $key, $value);
-                               } else {
-                                       $this->setDefaultConfigValue($category, $key, $value);
-                               }
-                       }
-               }
        }
 
        /**
@@ -519,8 +373,8 @@ class App
         */
        private function loadDefaultTimezone()
        {
-               if ($this->getConfigValue('system', 'default_timezone')) {
-                       $this->timezone = $this->getConfigValue('system', 'default_timezone');
+               if ($this->config->get('system', 'default_timezone')) {
+                       $this->timezone = $this->config->get('system', 'default_timezone');
                } else {
                        global $default_timezone;
                        $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
@@ -536,23 +390,33 @@ class App
         */
        private function determineURLPath()
        {
+               /*
+                * The automatic path detection in this function is currently deactivated,
+                * see issue https://github.com/friendica/friendica/issues/6679
+                *
+                * The problem is that the function seems to be confused with some url.
+                * These then confuses the detection which changes the url path.
+                */
+
                /* Relative script path to the web server root
                 * Not all of those $_SERVER properties can be present, so we do by inverse priority order
                 */
+/*
                $relative_script_path = '';
                $relative_script_path = defaults($_SERVER, 'REDIRECT_URL'       , $relative_script_path);
                $relative_script_path = defaults($_SERVER, 'REDIRECT_URI'       , $relative_script_path);
                $relative_script_path = defaults($_SERVER, 'REDIRECT_SCRIPT_URL', $relative_script_path);
                $relative_script_path = defaults($_SERVER, 'SCRIPT_URL'         , $relative_script_path);
                $relative_script_path = defaults($_SERVER, 'REQUEST_URI'        , $relative_script_path);
-
-               $this->urlPath = $this->getConfigValue('system', 'urlpath');
+*/
+               $this->urlPath = $this->config->get('system', 'urlpath');
 
                /* $relative_script_path gives /relative/path/to/friendica/module/parameter
                 * QUERY_STRING gives pagename=module/parameter
                 *
                 * To get /relative/path/to/friendica we perform dirname() for as many levels as there are slashes in the QUERY_STRING
                 */
+/*
                if (!empty($relative_script_path)) {
                        // Module
                        if (!empty($_SERVER['QUERY_STRING'])) {
@@ -566,98 +430,7 @@ class App
                                $this->urlPath = $path;
                        }
                }
-       }
-
-       public function loadDatabase()
-       {
-               if (DBA::connected()) {
-                       return;
-               }
-
-               $db_host = $this->getConfigValue('database', 'hostname');
-               $db_user = $this->getConfigValue('database', 'username');
-               $db_pass = $this->getConfigValue('database', 'password');
-               $db_data = $this->getConfigValue('database', 'database');
-               $charset = $this->getConfigValue('database', 'charset');
-
-               // Use environment variables for mysql if they are set beforehand
-               if (!empty(getenv('MYSQL_HOST'))
-                       && !empty(getenv('MYSQL_USERNAME') || !empty(getenv('MYSQL_USER')))
-                       && getenv('MYSQL_PASSWORD') !== false
-                       && !empty(getenv('MYSQL_DATABASE')))
-               {
-                       $db_host = getenv('MYSQL_HOST');
-                       if (!empty(getenv('MYSQL_PORT'))) {
-                               $db_host .= ':' . getenv('MYSQL_PORT');
-                       }
-                       if (!empty(getenv('MYSQL_USERNAME'))) {
-                               $db_user = getenv('MYSQL_USERNAME');
-                       } else {
-                               $db_user = getenv('MYSQL_USER');
-                       }
-                       $db_pass = (string) getenv('MYSQL_PASSWORD');
-                       $db_data = getenv('MYSQL_DATABASE');
-               }
-
-               $stamp1 = microtime(true);
-
-               if (DBA::connect($db_host, $db_user, $db_pass, $db_data, $charset)) {
-                       // Loads DB_UPDATE_VERSION constant
-                       Database\DBStructure::definition(false);
-               }
-
-               unset($db_host, $db_user, $db_pass, $db_data, $charset);
-
-               $this->saveTimestamp($stamp1, 'network');
-       }
-
-       /**
-        * @brief Returns the base filesystem path of the App
-        *
-        * It first checks for the internal variable, then for DOCUMENT_ROOT and
-        * finally for PWD
-        *
-        * @return string
-        * @throws InternalServerErrorException
-        */
-       public function getBasePath()
-       {
-               $basepath = $this->basePath;
-
-               if (!$basepath) {
-                       $basepath = Core\Config::get('system', 'basepath');
-               }
-
-               if (!$basepath && !empty($_SERVER['DOCUMENT_ROOT'])) {
-                       $basepath = $_SERVER['DOCUMENT_ROOT'];
-               }
-
-               if (!$basepath && !empty($_SERVER['PWD'])) {
-                       $basepath = $_SERVER['PWD'];
-               }
-
-               return self::getRealPath($basepath);
-       }
-
-       /**
-        * @brief Returns a normalized file path
-        *
-        * This is a wrapper for the "realpath" function.
-        * That function cannot detect the real path when some folders aren't readable.
-        * Since this could happen with some hosters we need to handle this.
-        *
-        * @param string $path The path that is about to be normalized
-        * @return string normalized path - when possible
-        */
-       public static function getRealPath($path)
-       {
-               $normalized = realpath($path);
-
-               if (!is_bool($normalized)) {
-                       return $normalized;
-               } else {
-                       return $path;
-               }
+*/
        }
 
        public function getScheme()
@@ -684,14 +457,14 @@ class App
        {
                $scheme = $this->scheme;
 
-               if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
+               if ($this->config->get('system', 'ssl_policy') == SSL_POLICY_FULL) {
                        $scheme = 'https';
                }
 
                //      Basically, we have $ssl = true on any links which can only be seen by a logged in user
                //      (and also the login link). Anything seen by an outsider will have it turned off.
 
-               if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
+               if ($this->config->get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
                        if ($ssl) {
                                $scheme = 'https';
                        } else {
@@ -699,8 +472,8 @@ class App
                        }
                }
 
-               if (Core\Config::get('config', 'hostname') != '') {
-                       $this->hostname = Core\Config::get('config', 'hostname');
+               if ($this->config->get('config', 'hostname') != '') {
+                       $this->hostname = $this->config->get('config', 'hostname');
                }
 
                return $scheme . '://' . $this->hostname . (!empty($this->getURLPath()) ? '/' . $this->getURLPath() : '' );
@@ -739,8 +512,8 @@ class App
                                include $this->getBasePath() . '/.htpreconfig.php';
                        }
 
-                       if (Core\Config::get('config', 'hostname') != '') {
-                               $this->hostname = Core\Config::get('config', 'hostname');
+                       if ($this->config->get('config', 'hostname') != '') {
+                               $this->hostname = $this->config->get('config', 'hostname');
                        }
 
                        if (!isset($this->hostname) || ($this->hostname == '')) {
@@ -751,8 +524,8 @@ class App
 
        public function getHostName()
        {
-               if (Core\Config::get('config', 'hostname') != '') {
-                       $this->hostname = Core\Config::get('config', 'hostname');
+               if ($this->config->get('config', 'hostname') != '') {
+                       $this->hostname = $this->config->get('config', 'hostname');
                }
 
                return $this->hostname;
@@ -786,14 +559,14 @@ class App
                        $interval = 40000;
                }
 
-               // compose the page title from the sitename and the
-               // current module called
-               if (!$this->module == '') {
-                       $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
-               } else {
-                       $this->page['title'] = $this->config['sitename'];
+               // Default title: current module called
+               if (empty($this->page['title']) && $this->module) {
+                       $this->page['title'] = ucfirst($this->module);
                }
 
+               // Prepend the sitename to the page title
+               $this->page['title'] = $this->config->get('config', 'sitename', '') . (!empty($this->page['title']) ? ' | ' . $this->page['title'] : '');
+
                if (!empty(Core\Renderer::$theme['stylesheet'])) {
                        $stylesheet = Core\Renderer::$theme['stylesheet'];
                } else {
@@ -802,12 +575,12 @@ class App
 
                $this->registerStylesheet($stylesheet);
 
-               $shortcut_icon = Core\Config::get('system', 'shortcut_icon');
+               $shortcut_icon = $this->config->get('system', 'shortcut_icon');
                if ($shortcut_icon == '') {
                        $shortcut_icon = 'images/friendica-32.png';
                }
 
-               $touch_icon = Core\Config::get('system', 'touch_icon');
+               $touch_icon = $this->config->get('system', 'touch_icon');
                if ($touch_icon == '') {
                        $touch_icon = 'images/friendica-128.png';
                }
@@ -824,12 +597,10 @@ class App
                        '$local_user'      => local_user(),
                        '$generator'       => 'Friendica' . ' ' . FRIENDICA_VERSION,
                        '$delitem'         => Core\L10n::t('Delete this item?'),
-                       '$showmore'        => Core\L10n::t('show more'),
-                       '$showfewer'       => Core\L10n::t('show fewer'),
                        '$update_interval' => $interval,
                        '$shortcut_icon'   => $shortcut_icon,
                        '$touch_icon'      => $touch_icon,
-                       '$block_public'    => intval(Core\Config::get('system', 'block_public')),
+                       '$block_public'    => intval($this->config->get('system', 'block_public')),
                        '$stylesheets'     => $this->stylesheets,
                ]) . $this->page['htmlhead'];
        }
@@ -903,39 +674,6 @@ class App
                }
        }
 
-       /**
-        * Saves a timestamp for a value - f.e. a call
-        * Necessary for profiling Friendica
-        *
-        * @param int $timestamp the Timestamp
-        * @param string $value A value to profile
-        */
-       public function saveTimestamp($timestamp, $value)
-       {
-               if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
-                       return;
-               }
-
-               $duration = (float) (microtime(true) - $timestamp);
-
-               if (!isset($this->performance[$value])) {
-                       // Prevent ugly E_NOTICE
-                       $this->performance[$value] = 0;
-               }
-
-               $this->performance[$value] += (float) $duration;
-               $this->performance['marktime'] += (float) $duration;
-
-               $callstack = Core\System::callstack();
-
-               if (!isset($this->callstack[$value][$callstack])) {
-                       // Prevent ugly E_NOTICE
-                       $this->callstack[$value][$callstack] = 0;
-               }
-
-               $this->callstack[$value][$callstack] += (float) $duration;
-       }
-
        /**
         * Returns the current UserAgent as a String
         *
@@ -991,6 +729,7 @@ class App
                        'fetch',
                        'hcard',
                        'hostxrd',
+                       'manifest',
                        'nodeinfo',
                        'noscrape',
                        'p',
@@ -1035,13 +774,13 @@ class App
                 *
                if ($this->is_backend()) {
                        $process = 'backend';
-                       $max_processes = Core\Config::get('system', 'max_processes_backend');
+                       $max_processes = $this->config->get('system', 'max_processes_backend');
                        if (intval($max_processes) == 0) {
                                $max_processes = 5;
                        }
                } else {
                        $process = 'frontend';
-                       $max_processes = Core\Config::get('system', 'max_processes_frontend');
+                       $max_processes = $this->config->get('system', 'max_processes_frontend');
                        if (intval($max_processes) == 0) {
                                $max_processes = 20;
                        }
@@ -1068,7 +807,7 @@ class App
         */
        public function isMinMemoryReached()
        {
-               $min_memory = Core\Config::get('system', 'min_memory', 0);
+               $min_memory = $this->config->get('system', 'min_memory', 0);
                if ($min_memory == 0) {
                        return false;
                }
@@ -1115,13 +854,13 @@ class App
        {
                if ($this->isBackend()) {
                        $process = 'backend';
-                       $maxsysload = intval(Core\Config::get('system', 'maxloadavg'));
+                       $maxsysload = intval($this->config->get('system', 'maxloadavg'));
                        if ($maxsysload < 1) {
                                $maxsysload = 50;
                        }
                } else {
                        $process = 'frontend';
-                       $maxsysload = intval(Core\Config::get('system', 'maxloadavg_frontend'));
+                       $maxsysload = intval($this->config->get('system', 'maxloadavg_frontend'));
                        if ($maxsysload < 1) {
                                $maxsysload = 50;
                        }
@@ -1150,7 +889,7 @@ class App
                        return;
                }
 
-               $cmdline = $this->getConfigValue('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
+               $cmdline = $this->config->get('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
 
                foreach ($args as $key => $value) {
                        if (!is_null($value) && is_bool($value) && !$value) {
@@ -1179,203 +918,6 @@ class App
                proc_close($resource);
        }
 
-       /**
-        * @brief Returns the system user that is executing the script
-        *
-        * This mostly returns something like "www-data".
-        *
-        * @return string system username
-        */
-       private static function getSystemUser()
-       {
-               if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
-                       return '';
-               }
-
-               $processUser = posix_getpwuid(posix_geteuid());
-               return $processUser['name'];
-       }
-
-       /**
-        * @brief Checks if a given directory is usable for the system
-        *
-        * @param      $directory
-        * @param bool $check_writable
-        * @return boolean the directory is usable
-        * @throws Exception
-        */
-       public static function isDirectoryUsable($directory, $check_writable = true)
-       {
-               if ($directory == '') {
-                       Core\Logger::log('Directory is empty. This shouldn\'t happen.', Core\Logger::DEBUG);
-                       return false;
-               }
-
-               if (!file_exists($directory)) {
-                       Core\Logger::log('Path "' . $directory . '" does not exist for user ' . self::getSystemUser(), Core\Logger::DEBUG);
-                       return false;
-               }
-
-               if (is_file($directory)) {
-                       Core\Logger::log('Path "' . $directory . '" is a file for user ' . self::getSystemUser(), Core\Logger::DEBUG);
-                       return false;
-               }
-
-               if (!is_dir($directory)) {
-                       Core\Logger::log('Path "' . $directory . '" is not a directory for user ' . self::getSystemUser(), Core\Logger::DEBUG);
-                       return false;
-               }
-
-               if ($check_writable && !is_writable($directory)) {
-                       Core\Logger::log('Path "' . $directory . '" is not writable for user ' . self::getSystemUser(), Core\Logger::DEBUG);
-                       return false;
-               }
-
-               return true;
-       }
-
-       /**
-        * @param string $cat     Config category
-        * @param string $k       Config key
-        * @param mixed  $default Default value if it isn't set
-        *
-        * @return string Returns the value of the Config entry
-        */
-       public function getConfigValue($cat, $k, $default = null)
-       {
-               $return = $default;
-
-               if ($cat === 'config') {
-                       if (isset($this->config[$k])) {
-                               $return = $this->config[$k];
-                       }
-               } else {
-                       if (isset($this->config[$cat][$k])) {
-                               $return = $this->config[$cat][$k];
-                       }
-               }
-
-               return $return;
-       }
-
-       /**
-        * Sets a default value in the config cache. Ignores already existing keys.
-        *
-        * @param string $cat Config category
-        * @param string $k   Config key
-        * @param mixed  $v   Default value to set
-        */
-       private function setDefaultConfigValue($cat, $k, $v)
-       {
-               if (!isset($this->config[$cat][$k])) {
-                       $this->setConfigValue($cat, $k, $v);
-               }
-       }
-
-       /**
-        * Sets a value in the config cache. Accepts raw output from the config table
-        *
-        * @param string $cat Config category
-        * @param string $k   Config key
-        * @param mixed  $v   Value to set
-        */
-       public function setConfigValue($cat, $k, $v)
-       {
-               // Only arrays are serialized in database, so we have to unserialize sparingly
-               $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
-
-               if ($cat === 'config') {
-                       $this->config[$k] = $value;
-               } else {
-                       if (!isset($this->config[$cat])) {
-                               $this->config[$cat] = [];
-                       }
-
-                       $this->config[$cat][$k] = $value;
-               }
-       }
-
-       /**
-        * Deletes a value from the config cache
-        *
-        * @param string $cat Config category
-        * @param string $k   Config key
-        */
-       public function deleteConfigValue($cat, $k)
-       {
-               if ($cat === 'config') {
-                       if (isset($this->config[$k])) {
-                               unset($this->config[$k]);
-                       }
-               } else {
-                       if (isset($this->config[$cat][$k])) {
-                               unset($this->config[$cat][$k]);
-                       }
-               }
-       }
-
-
-       /**
-        * Retrieves a value from the user config cache
-        *
-        * @param int    $uid     User Id
-        * @param string $cat     Config category
-        * @param string $k       Config key
-        * @param mixed  $default Default value if key isn't set
-        *
-        * @return string The value of the config entry
-        */
-       public function getPConfigValue($uid, $cat, $k, $default = null)
-       {
-               $return = $default;
-
-               if (isset($this->config[$uid][$cat][$k])) {
-                       $return = $this->config[$uid][$cat][$k];
-               }
-
-               return $return;
-       }
-
-       /**
-        * Sets a value in the user config cache
-        *
-        * Accepts raw output from the pconfig table
-        *
-        * @param int    $uid User Id
-        * @param string $cat Config category
-        * @param string $k   Config key
-        * @param mixed  $v   Value to set
-        */
-       public function setPConfigValue($uid, $cat, $k, $v)
-       {
-               // Only arrays are serialized in database, so we have to unserialize sparingly
-               $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
-
-               if (!isset($this->config[$uid]) || !is_array($this->config[$uid])) {
-                       $this->config[$uid] = [];
-               }
-
-               if (!isset($this->config[$uid][$cat]) || !is_array($this->config[$uid][$cat])) {
-                       $this->config[$uid][$cat] = [];
-               }
-
-               $this->config[$uid][$cat][$k] = $value;
-       }
-
-       /**
-        * Deletes a value from the user config cache
-        *
-        * @param int    $uid User Id
-        * @param string $cat Config category
-        * @param string $k   Config key
-        */
-       public function deletePConfigValue($uid, $cat, $k)
-       {
-               if (isset($this->config[$uid][$cat][$k])) {
-                       unset($this->config[$uid][$cat][$k]);
-               }
-       }
-
        /**
         * Generates the site's default sender email address
         *
@@ -1384,7 +926,7 @@ class App
         */
        public function getSenderEmailAddress()
        {
-               $sender_email = Core\Config::get('config', 'sender_email');
+               $sender_email = $this->config->get('config', 'sender_email');
                if (empty($sender_email)) {
                        $hostname = $this->getHostName();
                        if (strpos($hostname, ':')) {
@@ -1428,7 +970,7 @@ class App
         */
        private function computeCurrentTheme()
        {
-               $system_theme = Core\Config::get('system', 'theme');
+               $system_theme = $this->config->get('system', 'theme');
                if (!$system_theme) {
                        throw new Exception(Core\L10n::t('No system theme config value set.'));
                }
@@ -1436,8 +978,6 @@ class App
                // Sane default
                $this->currentTheme = $system_theme;
 
-               $allowed_themes = explode(',', Core\Config::get('system', 'allowed_themes', $system_theme));
-
                $page_theme = null;
                // Find the theme that belongs to the user whose stuff we are looking at
                if ($this->profile_uid && ($this->profile_uid != local_user())) {
@@ -1453,7 +993,7 @@ class App
 
                // Specific mobile theme override
                if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
-                       $system_mobile_theme = Core\Config::get('system', 'mobile-theme');
+                       $system_mobile_theme = $this->config->get('system', 'mobile-theme');
                        $user_mobile_theme = Core\Session::get('mobile-theme', $system_mobile_theme);
 
                        // --- means same mobile theme as desktop
@@ -1468,8 +1008,9 @@ class App
                        $theme_name = $user_theme;
                }
 
+               $theme_name = Strings::sanitizeFilePathItem($theme_name);
                if ($theme_name
-                       && in_array($theme_name, $allowed_themes)
+                       && in_array($theme_name, Theme::getAllowedList())
                        && (file_exists('view/theme/' . $theme_name . '/style.css')
                        || file_exists('view/theme/' . $theme_name . '/style.php'))
                ) {
@@ -1524,7 +1065,7 @@ class App
         */
        public function checkURL()
        {
-               $url = Core\Config::get('system', 'url');
+               $url = $this->config->get('system', 'url');
 
                // if the url isn't set or the stored url is radically different
                // than the currently visited url, store the current value accordingly.
@@ -1533,7 +1074,7 @@ class App
                // We will only change the url to an ip address if there is no existing setting
 
                if (empty($url) || (!Util\Strings::compareLink($url, $this->getBaseURL())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->getHostName()))) {
-                       Core\Config::set('system', 'url', $this->getBaseURL());
+                       $this->config->set('system', 'url', $this->getBaseURL());
                }
        }
 
@@ -1566,8 +1107,8 @@ class App
 
                if (!$this->getMode()->isInstall()) {
                        // Force SSL redirection
-                       if (Core\Config::get('system', 'force_ssl') && ($this->getScheme() == "http")
-                               && intval(Core\Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL
+                       if ($this->config->get('system', 'force_ssl') && ($this->getScheme() == "http")
+                               && intval($this->config->get('system', 'ssl_policy')) == SSL_POLICY_FULL
                                && strpos($this->getBaseURL(), 'https://') === 0
                                && $_SERVER['REQUEST_METHOD'] == 'GET') {
                                header('HTTP/1.1 302 Moved Temporarily');
@@ -1583,7 +1124,7 @@ class App
                if (!$this->isBackend()) {
                        $stamp1 = microtime(true);
                        session_start();
-                       $this->saveTimestamp($stamp1, 'parser');
+                       $this->profiler->saveTimestamp($stamp1, 'parser', Core\System::callstack());
                        Core\L10n::setSessionVariable();
                        Core\L10n::setLangFromSession();
                } else {
@@ -1591,6 +1132,13 @@ class App
                        Core\Worker::executeIfIdle();
                }
 
+               if ($this->getMode()->isNormal()) {
+                       $requester = HTTPSignature::getSigner('', $_SERVER);
+                       if (!empty($requester)) {
+                               Profile::addVisitorCookieForHandle($requester);
+                       }
+               }
+
                // ZRL
                if (!empty($_GET['zrl']) && $this->getMode()->isNormal()) {
                        $this->query_string = Model\Profile::stripZrls($this->query_string);
@@ -1643,7 +1191,7 @@ class App
                        $this->module = 'maintenance';
                } else {
                        $this->checkURL();
-                       Core\Update::check(false);
+                       Core\Update::check($this->getBasePath(), false, $this->getMode());
                        Core\Addon::loadAddons();
                        Core\Hook::loadHooks();
                }
@@ -1700,8 +1248,13 @@ class App
                                $this->module = "login";
                        }
 
-                       $privateapps = Core\Config::get('config', 'private_addons', false);
-                       if (Core\Addon::isEnabled($this->module) && file_exists("addon/{$this->module}/{$this->module}.php")) {
+                       $router = new App\Router();
+                       $this->collectRoutes($router->routeCollector);
+
+                       $this->module_class = $router->getModuleClass($this->cmd);
+
+                       $privateapps = $this->config->get('config', 'private_addons', false);
+                       if (!$this->module_class && Core\Addon::isEnabled($this->module) && file_exists("addon/{$this->module}/{$this->module}.php")) {
                                //Check if module is an app and if public access to apps is allowed or not
                                if ((!local_user()) && Core\Hook::isAddonApp($this->module) && $privateapps) {
                                        info(Core\L10n::t("You must be logged in to use addons. "));
@@ -1710,24 +1263,21 @@ class App
                                        if (function_exists($this->module . '_module')) {
                                                LegacyModule::setModuleFile("addon/{$this->module}/{$this->module}.php");
                                                $this->module_class = 'Friendica\\LegacyModule';
-                                               $this->module_loaded = true;
                                        }
                                }
                        }
 
                        // Controller class routing
-                       if (! $this->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($this->module))) {
+                       if (!$this->module_class && class_exists('Friendica\\Module\\' . ucfirst($this->module))) {
                                $this->module_class = 'Friendica\\Module\\' . ucfirst($this->module);
-                               $this->module_loaded = true;
                        }
 
                        /* If not, next look for a 'standard' program module in the 'mod' directory
                         * We emulate a Module class through the LegacyModule class
                         */
-                       if (! $this->module_loaded && file_exists("mod/{$this->module}.php")) {
+                       if (!$this->module_class && file_exists("mod/{$this->module}.php")) {
                                LegacyModule::setModuleFile("mod/{$this->module}.php");
                                $this->module_class = 'Friendica\\LegacyModule';
-                               $this->module_loaded = true;
                        }
 
                        /* The URL provided does not resolve to a valid module.
@@ -1739,7 +1289,7 @@ class App
                         *
                         * Otherwise we are going to emit a 404 not found.
                         */
-                       if (! $this->module_loaded) {
+                       if (!$this->module_class) {
                                // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
                                if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
                                        exit();
@@ -1763,7 +1313,7 @@ class App
                $content = '';
 
                // Initialize module that can set the current theme in the init() method, either directly or via App->profile_uid
-               if ($this->module_loaded) {
+               if ($this->module_class) {
                        $this->page['page_title'] = $this->module;
                        $placeholder = '';
 
@@ -1789,7 +1339,7 @@ class App
                        $func($this);
                }
 
-               if ($this->module_loaded) {
+               if ($this->module_class) {
                        if (! $this->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
                                Core\Hook::callAll($this->module . '_mod_post', $_POST);
                                call_user_func([$this->module_class, 'post']);
@@ -1885,7 +1435,7 @@ class App
                header("X-Friendica-Version: " . FRIENDICA_VERSION);
                header("Content-type: text/html; charset=utf-8");
 
-               if (Core\Config::get('system', 'hsts') && (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
+               if ($this->config->get('system', 'hsts') && ($this->config->get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
                        header("Strict-Transport-Security: max-age=31536000");
                }
 
@@ -1955,4 +1505,26 @@ class App
                        $this->internalRedirect($toUrl);
                }
        }
+
+       /**
+        * @brief Static declaration of Friendica routes.
+        *
+        * Supports:
+        * - Route groups
+        * - Variable parts
+        * Disregards:
+        * - HTTP method other than GET
+        * - Named parameters
+        *
+        * Handler must be the name of a class extending Friendica\BaseModule.
+        *
+        * @param RouteCollector $routeCollector
+        * @throws InternalServerErrorException
+        */
+       private function collectRoutes(RouteCollector $routeCollector)
+       {
+               $routeCollector->addRoute(['GET', 'POST'], '/itemsource[/{guid}]', Module\Itemsource::class);
+
+               Hook::callAll('route_collection', $routeCollector);
+       }
 }