<?php /** * * Friendica * */ /** * * bootstrap the application * */ use Friendica\App; use Friendica\Core\System; use Friendica\Core\Config; require_once 'boot.php'; require_once 'object/BaseObject.php'; if (empty($a)) { $a = new App(__DIR__); } BaseObject::set_app($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. * */ $install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true); // Only load config if found, don't surpress errors if (!$install) { include ".htconfig.php"; } /** * * Try to open the database; * */ require_once "include/dba.php"; if (!$install) { dba::connect($db_host, $db_user, $db_pass, $db_data, $install); unset($db_host, $db_user, $db_pass, $db_data); /** * Load configs from db. Overwrite configs from .htconfig.php */ Config::load(); if ($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() . "/" . $a->query_string); die("System is currently unavailable. Please try again later"); } if (get_config('system', 'force_ssl') && ($a->get_scheme() == "http") && (intval(get_config('system', 'ssl_policy')) == SSL_POLICY_FULL) && (substr(System::baseUrl(), 0, 8) == "https://")) { header("HTTP/1.1 302 Moved Temporarily"); header("Location: " . System::baseUrl() . "/" . $a->query_string); exit(); } require_once 'include/session.php'; load_hooks(); call_hooks('init_1'); $maintenance = get_config('system', 'maintenance'); } $lang = get_browser_language(); load_translation_table($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 * */ // Exclude the backend processes from the session management if (!$a->is_backend()) { $stamp1 = microtime(true); session_start(); $a->save_timestamp($stamp1, "parser"); } else { require_once "include/poller.php"; call_worker_if_idle(); } /** * 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 = dba::select('user', array('language'), array('uid' => $_SESSION['uid']), array('limit' => 1)); $_SESSION['language'] = $lang; if (dbm::is_result($r)) { $_SESSION['language'] = $r['language']; } } if ((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) { $lang = $_SESSION['language']; load_translation_table($lang); } 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) == "") && 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); } else { // Someone came with an invalid parameter, maybe as a DDoS attempt // We simply stop processing here logger("Invalid ZRL parameter ".$_GET['zrl'], LOGGER_DEBUG); header('HTTP/1.1 403 Forbidden'); echo "<h1>403 Forbidden</h1>"; killme(); } } /** * * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header. * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it * this way. There's a PHP flag to link the headers because by default this will over-write any other * link header. * * What we really need to do is output the raw headers ourselves so we can keep them separate. * */ // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";'); if (x($_COOKIE["Friendica"]) || (x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login')) { require("include/auth.php"); } if (! x($_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')) { $_SESSION['sysmsg_info'] = array(); } // Array for informations about last received items if (! x($_SESSION,'last_updated')) { $_SESSION['last_updated'] = array(); } /* * check_config() is responsible for running update scripts. These automatically * update the DB schema whenever we push a new one out. It also checks to see if * any plugins have been added or removed and reacts accordingly. */ // in install mode, any url loads install module // but we need "view" module for stylesheet if ($install && $a->module!="view") { $a->module = 'install'; } elseif ($maintenance && $a->module!="view") { $a->module = 'maintenance'; } else { check_url($a); check_db(false); check_plugins($a); } nav_set_selected('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); call_hooks('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 * and use it for handling our URL request. * The module file contains a few functions that we call in various circumstances * and in the following order: * * "module"_init * "module"_post (only called if there are $_POST variables) * "module"_afterpost * "module"_content - the string return of this function contains our page body * * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do * so within the module init and/or post functions and then invoke killme() to terminate * further processing. */ if (strlen($a->module)) { /** * * We will always have a module name. * First see if we have a plugin which is masquerading as a module. * */ // Compatibility with the Android Diaspora client if ($a->module == "stream") { $a->module = "network"; } // Compatibility with the Firefox App if (($a->module == "users") && ($a->cmd == "users/sign_in")) { $a->module = "login"; } $privateapps = get_config('config','private_addons'); if (is_array($a->plugins) && in_array($a->module,$a->plugins) && 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')) { $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"); $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'. * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic - * we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page * this will often succeed and eventually do the right thing. * * Otherwise we are going to emit a 404 not found. * */ 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]}/',$_SERVER['QUERY_STRING']) !== 0) { killme(); } if ((x($_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(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')); $tpl = get_markup_template("404.tpl"); $a->page['content'] = replace_macros($tpl, array( '$message' => t('Page not found.' ) )); } } /** * load current theme info */ $theme_info_file = "view/theme/".current_theme()."/theme.php"; if (file_exists($theme_info_file)){ require_once($theme_info_file); } /* initialise content region */ if (! x($a->page,'content')) { $a->page['content'] = ''; } if (!$install && !$maintenance) { call_hooks('page_content_top',$a->page['content']); } /** * Call module functions */ if ($a->module_loaded) { $a->page['page_title'] = $a->module; $placeholder = ''; if (function_exists($a->module . '_init')) { call_hooks($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'; $func($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 ((! $a->error) && (function_exists($a->module . '_afterpost'))) { call_hooks($a->module . '_mod_afterpost',$placeholder); $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); $a->page['content'] = $arr['content']; $func = $a->module . '_content'; $arr = array('content' => $func($a)); call_hooks($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'; $func($a); } } /* * Create the page head after setting the language * 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. */ $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')) { $homebase = $_SESSION['visitor_home']; } elseif (local_user()) { $homebase = 'profile/' . $a->user['nickname']; } if (isset($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) */ call_hooks('page_end', $a->page['content']); /* * Add the navigation (menu) template */ if ($a->module != 'install' && $a->module != 'maintenance') { nav($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']) { $link = 'toggle_mobile?address=' . curPageURL(); } 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') )); } /** * Build the page - now that we have all the components */ if (!$a->theme['stylesheet']) { $stylesheet = current_theme_url(); } else { $stylesheet = $a->theme['stylesheet']; } $a->page['htmlhead'] = str_replace('{{$stylesheet}}',$stylesheet,$a->page['htmlhead']); //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet)); if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) { $doc = new DOMDocument(); $target = new DOMDocument(); $target->loadXML("<root></root>"); $content = mb_convert_encoding($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); $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */ foreach ($list as $item) { $item = $target->importNode($item, true); // And then append it to the target $target->documentElement->appendChild($item); } } if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) { header("Content-type: text/html; charset=utf-8"); echo substr($target->saveHTML(), 6, -8); killme(); } $page = $a->page; $profile = $a->profile; 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'); // 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'"); /* * 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"])) { $template = theme_include($_GET["mode"] . '.php'); } // If there is no page template use the default page template if (empty($template)) { $template = theme_include("default.php"); } /// @TODO Looks unsafe (remote-inclusion), is maybe not but theme_include() uses file_exists() but does not escape anything require_once $template; killme();