8 * Bootstrap the application
12 use Friendica\BaseObject;
13 use Friendica\Core\System;
14 use Friendica\Core\Config;
15 use Friendica\Core\Worker;
16 use Friendica\Database\DBM;
18 require_once 'boot.php';
21 $a = new App(__DIR__);
23 BaseObject::setApp($a);
25 // We assume that the index.php is called by a frontend process
26 // The value is set to "true" by default in boot.php
30 * Load the configuration file which contains our DB credentials.
31 * Ignore errors. If the file doesn't exist or is empty, we are running in
35 $install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
37 // Only load config if found, don't surpress errors
39 include ".htconfig.php";
43 * Try to open the database;
46 require_once "include/dba.php";
49 dba::connect($db_host, $db_user, $db_pass, $db_data, $install);
50 unset($db_host, $db_user, $db_pass, $db_data);
53 * Load configs from db. Overwrite configs from .htconfig.php
58 if ($a->max_processes_reached() || $a->maxload_reached()) {
59 header($_SERVER["SERVER_PROTOCOL"] . ' 503 Service Temporarily Unavailable');
60 header('Retry-After: 120');
61 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
62 die("System is currently unavailable. Please try again later");
65 if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
66 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
67 && (substr(System::baseUrl(), 0, 8) == "https://")
69 header("HTTP/1.1 302 Moved Temporarily");
70 header("Location: " . System::baseUrl() . "/" . $a->query_string);
74 require_once 'include/session.php';
78 $maintenance = Config::get('system', 'maintenance');
81 $lang = get_browser_language();
83 load_translation_table($lang);
86 * Important stuff we always need to do.
88 * The order of these may be important so use caution if you think they're all
89 * intertwingled with no logical order and decide to sort it out. Some of the
90 * dependencies have changed, but at least at one time in the recent past - the
91 * order was critical to everything working properly
94 // Exclude the backend processes from the session management
95 if (!$a->is_backend()) {
96 $stamp1 = microtime(true);
98 $a->save_timestamp($stamp1, "parser");
100 Worker::executeIfIdle();
104 * Language was set earlier, but we can over-ride it in the session.
105 * We have to do it here because the session was just now opened.
107 if (x($_SESSION, 'authenticated') && !x($_SESSION, 'language')) {
108 // we didn't loaded user data yet, but we need user language
109 $r = dba::select('user', array('language'), array('uid' => $_SESSION['uid']), array('limit' => 1));
110 $_SESSION['language'] = $lang;
111 if (DBM::is_result($r)) {
112 $_SESSION['language'] = $r['language'];
116 if ((x($_SESSION, 'language')) && ($_SESSION['language'] !== $lang)) {
117 $lang = $_SESSION['language'];
118 load_translation_table($lang);
121 if ((x($_GET, 'zrl')) && (!$install && !$maintenance)) {
122 // Only continue when the given profile link seems valid
123 // Valid profile links contain a path with "/profile/" and no query parameters
124 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "")
125 && strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")
127 $_SESSION['my_url'] = $_GET['zrl'];
128 $a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is', '', $a->query_string);
131 // Someone came with an invalid parameter, maybe as a DDoS attempt
132 // We simply stop processing here
133 logger("Invalid ZRL parameter ".$_GET['zrl'], LOGGER_DEBUG);
134 header('HTTP/1.1 403 Forbidden');
135 echo "<h1>403 Forbidden</h1>";
141 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
142 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
143 * this way. There's a PHP flag to link the headers because by default this will over-write any other
146 * What we really need to do is output the raw headers ourselves so we can keep them separate.
149 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
151 if (x($_COOKIE["Friendica"]) || (x($_SESSION, 'authenticated')) || (x($_POST, 'auth-params')) || ($a->module === 'login')) {
152 require "include/auth.php";
155 if (! x($_SESSION, 'authenticated')) {
156 header('X-Account-Management-Status: none');
159 /* set up page['htmlhead'] and page['end'] for the modules to use */
160 $a->page['htmlhead'] = '';
161 $a->page['end'] = '';
164 if (! x($_SESSION, 'sysmsg')) {
165 $_SESSION['sysmsg'] = array();
168 if (! x($_SESSION, 'sysmsg_info')) {
169 $_SESSION['sysmsg_info'] = array();
172 // Array for informations about last received items
173 if (! x($_SESSION, 'last_updated')) {
174 $_SESSION['last_updated'] = array();
177 * check_config() is responsible for running update scripts. These automatically
178 * update the DB schema whenever we push a new one out. It also checks to see if
179 * any plugins have been added or removed and reacts accordingly.
182 // in install mode, any url loads install module
183 // but we need "view" module for stylesheet
184 if ($install && $a->module!="view") {
185 $a->module = 'install';
186 } elseif ($maintenance && $a->module!="view") {
187 $a->module = 'maintenance';
194 nav_set_selected('nothing');
196 //Don't populate apps_menu if apps are private
197 $privateapps = Config::get('config', 'private_addons');
198 if ((local_user()) || (! $privateapps === "1")) {
199 $arr = array('app_menu' => $a->apps);
201 call_hooks('app_menu', $arr);
203 $a->apps = $arr['app_menu'];
207 * We have already parsed the server path into $a->argc and $a->argv
209 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
210 * and use it for handling our URL request.
211 * The module file contains a few functions that we call in various circumstances
212 * and in the following order:
215 * "module"_post (only called if there are $_POST variables)
217 * "module"_content - the string return of this function contains our page body
219 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
220 * so within the module init and/or post functions and then invoke killme() to terminate
221 * further processing.
224 if (strlen($a->module)) {
227 * We will always have a module name.
228 * First see if we have a plugin which is masquerading as a module.
231 // Compatibility with the Android Diaspora client
232 if ($a->module == "stream") {
233 $a->module = "network";
236 // Compatibility with the Firefox App
237 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
238 $a->module = "login";
241 $privateapps = Config::get('config', 'private_addons');
243 if (is_array($a->plugins) && in_array($a->module, $a->plugins) && file_exists("addon/{$a->module}/{$a->module}.php")) {
244 //Check if module is an app and if public access to apps is allowed or not
245 if ((!local_user()) && plugin_is_app($a->module) && $privateapps === "1") {
246 info(t("You must be logged in to use addons. "));
248 include_once "addon/{$a->module}/{$a->module}.php";
249 if (function_exists($a->module . '_module')) {
250 $a->module_loaded = true;
256 * If not, next look for a 'standard' program module in the 'mod' directory
259 if ((! $a->module_loaded) && (file_exists("mod/{$a->module}.php"))) {
260 include_once "mod/{$a->module}.php";
261 $a->module_loaded = true;
265 * The URL provided does not resolve to a valid module.
267 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
268 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
269 * 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
270 * this will often succeed and eventually do the right thing.
272 * Otherwise we are going to emit a 404 not found.
275 if (! $a->module_loaded) {
276 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
277 if ((x($_SERVER, 'QUERY_STRING')) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
281 if ((x($_SERVER, 'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
282 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
283 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
286 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
287 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found'));
288 $tpl = get_markup_template("404.tpl");
289 $a->page['content'] = replace_macros(
292 '$message' => t('Page not found.'))
298 * Load current theme info
300 $theme_info_file = "view/theme/".current_theme()."/theme.php";
301 if (file_exists($theme_info_file)) {
302 require_once $theme_info_file;
306 /* initialise content region */
308 if (! x($a->page, 'content')) {
309 $a->page['content'] = '';
312 if (!$install && !$maintenance) {
313 call_hooks('page_content_top', $a->page['content']);
317 * Call module functions
320 if ($a->module_loaded) {
321 $a->page['page_title'] = $a->module;
324 if (function_exists($a->module . '_init')) {
325 call_hooks($a->module . '_mod_init', $placeholder);
326 $func = $a->module . '_init';
330 if (function_exists(str_replace('-', '_', current_theme()) . '_init')) {
331 $func = str_replace('-', '_', current_theme()) . '_init';
335 if (($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
336 && (function_exists($a->module . '_post'))
337 && (! x($_POST, 'auth-params'))
339 call_hooks($a->module . '_mod_post', $_POST);
340 $func = $a->module . '_post';
344 if ((! $a->error) && (function_exists($a->module . '_afterpost'))) {
345 call_hooks($a->module . '_mod_afterpost', $placeholder);
346 $func = $a->module . '_afterpost';
350 if ((! $a->error) && (function_exists($a->module . '_content'))) {
351 $arr = array('content' => $a->page['content']);
352 call_hooks($a->module . '_mod_content', $arr);
353 $a->page['content'] = $arr['content'];
354 $func = $a->module . '_content';
355 $arr = array('content' => $func($a));
356 call_hooks($a->module . '_mod_aftercontent', $arr);
357 $a->page['content'] .= $arr['content'];
360 if (function_exists(str_replace('-', '_', current_theme()) . '_content_loaded')) {
361 $func = str_replace('-', '_', current_theme()) . '_content_loaded';
367 * Create the page head after setting the language
368 * and getting any auth credentials.
370 * Moved init_pagehead() and init_page_end() to after
371 * all the module functions have executed so that all
372 * theme choices made by the modules can take effect.
378 * Build the page ending -- this is stuff that goes right before
379 * the closing </body> tag
383 // If you're just visiting, let javascript take you home
384 if (x($_SESSION, 'visitor_home')) {
385 $homebase = $_SESSION['visitor_home'];
386 } elseif (local_user()) {
387 $homebase = 'profile/' . $a->user['nickname'];
390 if (isset($homebase)) {
391 $a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
395 * now that we've been through the module content, see if the page reported
396 * a permission problem and if so, a 403 response would seem to be in order.
398 if (stristr(implode("", $_SESSION['sysmsg']), t('Permission denied'))) {
399 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . t('Permission denied.'));
403 * Report anything which needs to be communicated in the notification area (before the main body)
405 call_hooks('page_end', $a->page['content']);
408 * Add the navigation (menu) template
410 if ($a->module != 'install' && $a->module != 'maintenance') {
415 * Add a "toggle mobile" link if we're using a mobile device
417 if ($a->is_mobile || $a->is_tablet) {
418 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
419 $link = 'toggle_mobile?address=' . curPageURL();
421 $link = 'toggle_mobile?off=1&address=' . curPageURL();
423 $a->page['footer'] = replace_macros(
424 get_markup_template("toggle_mobile_footer.tpl"),
426 '$toggle_link' => $link,
427 '$toggle_text' => t('toggle mobile'))
432 * Build the page - now that we have all the components
435 if (!$a->theme['stylesheet']) {
436 $stylesheet = current_theme_url();
438 $stylesheet = $a->theme['stylesheet'];
441 $a->page['htmlhead'] = str_replace('{{$stylesheet}}', $stylesheet, $a->page['htmlhead']);
442 //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
444 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
445 $doc = new DOMDocument();
447 $target = new DOMDocument();
448 $target->loadXML("<root></root>");
450 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
452 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
453 @$doc->loadHTML($content);
455 $xpath = new DomXPath($doc);
457 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
459 foreach ($list as $item) {
460 $item = $target->importNode($item, true);
462 // And then append it to the target
463 $target->documentElement->appendChild($item);
467 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
468 header("Content-type: text/html; charset=utf-8");
470 echo substr($target->saveHTML(), 6, -8);
476 $profile = $a->profile;
478 header("X-Friendica-Version: " . FRIENDICA_VERSION);
479 header("Content-type: text/html; charset=utf-8");
481 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
482 header("Strict-Transport-Security: max-age=31536000");
485 // Some security stuff
486 header('X-Content-Type-Options: nosniff');
487 header('X-XSS-Protection: 1; mode=block');
488 header('X-Permitted-Cross-Domain-Policies: none');
489 header('X-Frame-Options: sameorigin');
491 // Things like embedded OSM maps don't work, when this is enabled
492 // 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'");
495 * We use $_GET["mode"] for special page templates. So we will check if we have
496 * to load another page template than the default one.
497 * The page templates are located in /view/php/ or in the theme directory.
499 if (isset($_GET["mode"])) {
500 $template = theme_include($_GET["mode"] . '.php');
503 // If there is no page template use the default page template
504 if (empty($template)) {
505 $template = theme_include("default.php");
508 /// @TODO Looks unsafe (remote-inclusion), is maybe not but theme_include() uses file_exists() but does not escape anything
509 require_once $template;