8 * Bootstrap the application
12 use Friendica\Core\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 $a = new App(__DIR__);
23 BaseObject::set_app($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 $install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
37 // Only load config if found, don't surpress errors
39 include ".htconfig.php";
44 * Try to open the database;
48 require_once "include/dba.php";
51 dba::connect($db_host, $db_user, $db_pass, $db_data, $install);
52 unset($db_host, $db_user, $db_pass, $db_data);
55 * Load configs from db. Overwrite configs from .htconfig.php
60 if ($a->max_processes_reached() || $a->maxload_reached()) {
61 header($_SERVER["SERVER_PROTOCOL"] . ' 503 Service Temporarily Unavailable');
62 header('Retry-After: 120');
63 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
64 die("System is currently unavailable. Please try again later");
67 if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http") &&
68 (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL) &&
69 (substr(System::baseUrl(), 0, 8) == "https://")) {
70 header("HTTP/1.1 302 Moved Temporarily");
71 header("Location: " . System::baseUrl() . "/" . $a->query_string);
75 require_once 'include/session.php';
79 $maintenance = Config::get('system', 'maintenance');
82 $lang = get_browser_language();
84 load_translation_table($lang);
88 * Important stuff we always need to do.
90 * The order of these may be important so use caution if you think they're all
91 * intertwingled with no logical order and decide to sort it out. Some of the
92 * dependencies have changed, but at least at one time in the recent past - the
93 * order was critical to everything working properly
97 // Exclude the backend processes from the session management
98 if (!$a->is_backend()) {
99 $stamp1 = microtime(true);
101 $a->save_timestamp($stamp1, "parser");
103 Worker::executeIfIdle();
107 * Language was set earlier, but we can over-ride it in the session.
108 * We have to do it here because the session was just now opened.
110 if (x($_SESSION,'authenticated') && !x($_SESSION,'language')) {
111 // we didn't loaded user data yet, but we need user language
112 $r = dba::select('user', array('language'), array('uid' => $_SESSION['uid']), array('limit' => 1));
113 $_SESSION['language'] = $lang;
114 if (DBM::is_result($r)) {
115 $_SESSION['language'] = $r['language'];
119 if ((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {
120 $lang = $_SESSION['language'];
121 load_translation_table($lang);
124 if ((x($_GET,'zrl')) && (!$install && !$maintenance)) {
125 // Only continue when the given profile link seems valid
126 // Valid profile links contain a path with "/profile/" and no query parameters
127 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
128 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
129 $_SESSION['my_url'] = $_GET['zrl'];
130 $a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is','',$a->query_string);
133 // Someone came with an invalid parameter, maybe as a DDoS attempt
134 // We simply stop processing here
135 logger("Invalid ZRL parameter ".$_GET['zrl'], LOGGER_DEBUG);
136 header('HTTP/1.1 403 Forbidden');
137 echo "<h1>403 Forbidden</h1>";
144 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
145 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
146 * this way. There's a PHP flag to link the headers because by default this will over-write any other
149 * What we really need to do is output the raw headers ourselves so we can keep them separate.
153 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
155 if (x($_COOKIE["Friendica"]) || (x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login')) {
156 require("include/auth.php");
159 if (! x($_SESSION,'authenticated')) {
160 header('X-Account-Management-Status: none');
163 /* set up page['htmlhead'] and page['end'] for the modules to use */
164 $a->page['htmlhead'] = '';
165 $a->page['end'] = '';
168 if (! x($_SESSION,'sysmsg')) {
169 $_SESSION['sysmsg'] = array();
172 if (! x($_SESSION,'sysmsg_info')) {
173 $_SESSION['sysmsg_info'] = array();
176 // Array for informations about last received items
177 if (! x($_SESSION,'last_updated')) {
178 $_SESSION['last_updated'] = array();
181 * check_config() is responsible for running update scripts. These automatically
182 * update the DB schema whenever we push a new one out. It also checks to see if
183 * any plugins have been added or removed and reacts accordingly.
186 // in install mode, any url loads install module
187 // but we need "view" module for stylesheet
188 if ($install && $a->module!="view") {
189 $a->module = 'install';
190 } elseif ($maintenance && $a->module!="view") {
191 $a->module = 'maintenance';
198 nav_set_selected('nothing');
200 //Don't populate apps_menu if apps are private
201 $privateapps = Config::get('config','private_addons');
202 if ((local_user()) || (! $privateapps === "1")) {
203 $arr = array('app_menu' => $a->apps);
205 call_hooks('app_menu', $arr);
207 $a->apps = $arr['app_menu'];
212 * We have already parsed the server path into $a->argc and $a->argv
214 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
215 * and use it for handling our URL request.
216 * The module file contains a few functions that we call in various circumstances
217 * and in the following order:
220 * "module"_post (only called if there are $_POST variables)
222 * "module"_content - the string return of this function contains our page body
224 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
225 * so within the module init and/or post functions and then invoke killme() to terminate
226 * further processing.
229 if (strlen($a->module)) {
233 * We will always have a module name.
234 * First see if we have a plugin which is masquerading as a module.
238 // Compatibility with the Android Diaspora client
239 if ($a->module == "stream") {
240 $a->module = "network";
243 // Compatibility with the Firefox App
244 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
245 $a->module = "login";
248 $privateapps = Config::get('config','private_addons');
250 if (is_array($a->plugins) && in_array($a->module,$a->plugins) && file_exists("addon/{$a->module}/{$a->module}.php")) {
251 //Check if module is an app and if public access to apps is allowed or not
252 if ((!local_user()) && plugin_is_app($a->module) && $privateapps === "1") {
253 info( t("You must be logged in to use addons. "));
255 include_once("addon/{$a->module}/{$a->module}.php");
256 if (function_exists($a->module . '_module')) {
257 $a->module_loaded = true;
263 * If not, next look for a 'standard' program module in the 'mod' directory
266 if ((! $a->module_loaded) && (file_exists("mod/{$a->module}.php"))) {
267 include_once("mod/{$a->module}.php");
268 $a->module_loaded = true;
273 * The URL provided does not resolve to a valid module.
275 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
276 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
277 * 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
278 * this will often succeed and eventually do the right thing.
280 * Otherwise we are going to emit a 404 not found.
284 if (! $a->module_loaded) {
286 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
287 if ((x($_SERVER,'QUERY_STRING')) && preg_match('/{[0-9]}/',$_SERVER['QUERY_STRING']) !== 0) {
291 if ((x($_SERVER,'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
292 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
293 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
296 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
297 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found'));
298 $tpl = get_markup_template("404.tpl");
299 $a->page['content'] = replace_macros($tpl, array(
300 '$message' => t('Page not found.' )
306 * load current theme info
308 $theme_info_file = "view/theme/".current_theme()."/theme.php";
309 if (file_exists($theme_info_file)){
310 require_once($theme_info_file);
314 /* initialise content region */
316 if (! x($a->page,'content')) {
317 $a->page['content'] = '';
320 if (!$install && !$maintenance) {
321 call_hooks('page_content_top',$a->page['content']);
325 * Call module functions
328 if ($a->module_loaded) {
329 $a->page['page_title'] = $a->module;
332 if (function_exists($a->module . '_init')) {
333 call_hooks($a->module . '_mod_init', $placeholder);
334 $func = $a->module . '_init';
338 if (function_exists(str_replace('-','_',current_theme()) . '_init')) {
339 $func = str_replace('-','_',current_theme()) . '_init';
343 if (($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
344 && (function_exists($a->module . '_post'))
345 && (! x($_POST,'auth-params'))) {
346 call_hooks($a->module . '_mod_post', $_POST);
347 $func = $a->module . '_post';
351 if ((! $a->error) && (function_exists($a->module . '_afterpost'))) {
352 call_hooks($a->module . '_mod_afterpost',$placeholder);
353 $func = $a->module . '_afterpost';
357 if ((! $a->error) && (function_exists($a->module . '_content'))) {
358 $arr = array('content' => $a->page['content']);
359 call_hooks($a->module . '_mod_content', $arr);
360 $a->page['content'] = $arr['content'];
361 $func = $a->module . '_content';
362 $arr = array('content' => $func($a));
363 call_hooks($a->module . '_mod_aftercontent', $arr);
364 $a->page['content'] .= $arr['content'];
367 if (function_exists(str_replace('-','_',current_theme()) . '_content_loaded')) {
368 $func = str_replace('-','_',current_theme()) . '_content_loaded';
374 * Create the page head after setting the language
375 * and getting any auth credentials.
377 * Moved init_pagehead() and init_page_end() to after
378 * all the module functions have executed so that all
379 * theme choices made by the modules can take effect.
385 * Build the page ending -- this is stuff that goes right before
386 * the closing </body> tag
390 // If you're just visiting, let javascript take you home
391 if (x($_SESSION, 'visitor_home')) {
392 $homebase = $_SESSION['visitor_home'];
393 } elseif (local_user()) {
394 $homebase = 'profile/' . $a->user['nickname'];
397 if (isset($homebase)) {
398 $a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
402 * now that we've been through the module content, see if the page reported
403 * a permission problem and if so, a 403 response would seem to be in order.
405 if (stristr(implode("", $_SESSION['sysmsg']), t('Permission denied'))) {
406 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . t('Permission denied.'));
410 * Report anything which needs to be communicated in the notification area (before the main body)
412 call_hooks('page_end', $a->page['content']);
415 * Add the navigation (menu) template
417 if ($a->module != 'install' && $a->module != 'maintenance') {
422 * Add a "toggle mobile" link if we're using a mobile device
424 if ($a->is_mobile || $a->is_tablet) {
425 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
426 $link = 'toggle_mobile?address=' . curPageURL();
428 $link = 'toggle_mobile?off=1&address=' . curPageURL();
430 $a->page['footer'] = replace_macros(get_markup_template("toggle_mobile_footer.tpl"), array(
431 '$toggle_link' => $link,
432 '$toggle_text' => t('toggle mobile')
437 * Build the page - now that we have all the components
440 if (!$a->theme['stylesheet']) {
441 $stylesheet = current_theme_url();
443 $stylesheet = $a->theme['stylesheet'];
446 $a->page['htmlhead'] = str_replace('{{$stylesheet}}',$stylesheet,$a->page['htmlhead']);
447 //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
449 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
450 $doc = new DOMDocument();
452 $target = new DOMDocument();
453 $target->loadXML("<root></root>");
455 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
457 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
458 @$doc->loadHTML($content);
460 $xpath = new DomXPath($doc);
462 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
464 foreach ($list as $item) {
465 $item = $target->importNode($item, true);
467 // And then append it to the target
468 $target->documentElement->appendChild($item);
472 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
474 header("Content-type: text/html; charset=utf-8");
476 echo substr($target->saveHTML(), 6, -8);
482 $profile = $a->profile;
484 header("X-Friendica-Version: " . FRIENDICA_VERSION);
485 header("Content-type: text/html; charset=utf-8");
487 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
488 header("Strict-Transport-Security: max-age=31536000");
491 // Some security stuff
492 header('X-Content-Type-Options: nosniff');
493 header('X-XSS-Protection: 1; mode=block');
494 header('X-Permitted-Cross-Domain-Policies: none');
495 header('X-Frame-Options: sameorigin');
497 // Things like embedded OSM maps don't work, when this is enabled
498 // 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'");
501 * We use $_GET["mode"] for special page templates. So we will check if we have
502 * to load another page template than the default one.
503 * The page templates are located in /view/php/ or in the theme directory.
505 if (isset($_GET["mode"])) {
506 $template = theme_include($_GET["mode"] . '.php');
509 // If there is no page template use the default page template
510 if (empty($template)) {
511 $template = theme_include("default.php");
514 /// @TODO Looks unsafe (remote-inclusion), is maybe not but theme_include() uses file_exists() but does not escape anything
515 require_once $template;