8 * Bootstrap the application
12 use Friendica\Content\Nav;
13 use Friendica\Core\Addon;
14 use Friendica\Core\Config;
15 use Friendica\Core\L10n;
16 use Friendica\Core\Session;
17 use Friendica\Core\System;
18 use Friendica\Core\Theme;
19 use Friendica\Core\Worker;
20 use Friendica\Database\DBA;
21 use Friendica\Model\Profile;
22 use Friendica\Module\Login;
24 require_once 'boot.php';
26 $a = new App(__DIR__);
28 // We assume that the index.php is called by a frontend process
29 // The value is set to "true" by default in boot.php
33 * Try to open the database;
36 require_once "include/dba.php";
38 // Missing DB connection: ERROR
39 if (App\Mode::has(App\Mode::LOCALCONFIGPRESENT) && !App\Mode::has(App\Mode::DBAVAILABLE)) {
40 System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
43 // Max Load Average reached: ERROR
44 if ($a->isMaxProcessesReached() || $a->isMaxLoadReached()) {
45 header('Retry-After: 120');
46 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
48 System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
51 if (!App\Mode::isInstall()) {
52 if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
53 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
54 && (substr(System::baseUrl(), 0, 8) == "https://")
55 && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
56 header("HTTP/1.1 302 Moved Temporarily");
57 header("Location: " . System::baseUrl() . "/" . $a->query_string);
64 Addon::callHooks('init_1');
67 $lang = L10n::getBrowserLanguage();
69 L10n::loadTranslationTable($lang);
72 * Important stuff we always need to do.
74 * The order of these may be important so use caution if you think they're all
75 * intertwingled with no logical order and decide to sort it out. Some of the
76 * dependencies have changed, but at least at one time in the recent past - the
77 * order was critical to everything working properly
80 // Exclude the backend processes from the session management
81 if (!$a->is_backend()) {
82 $stamp1 = microtime(true);
84 $a->save_timestamp($stamp1, "parser");
87 Worker::executeIfIdle();
91 * Language was set earlier, but we can over-ride it in the session.
92 * We have to do it here because the session was just now opened.
94 if (!empty($_SESSION['authenticated']) && empty($_SESSION['language'])) {
95 $_SESSION['language'] = $lang;
96 // we haven't loaded user data yet, but we need user language
97 if (!empty($_SESSION['uid'])) {
98 $user = DBA::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
99 if (DBA::isResult($user)) {
100 $_SESSION['language'] = $user['language'];
105 if (!empty($_SESSION['language']) && $_SESSION['language'] !== $lang) {
106 $lang = $_SESSION['language'];
107 L10n::loadTranslationTable($lang);
110 if (!empty($_GET['zrl']) && App\Mode::isNormal()) {
111 $a->query_string = Profile::stripZrls($a->query_string);
113 // Only continue when the given profile link seems valid
114 // Valid profile links contain a path with "/profile/" and no query parameters
115 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
116 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
117 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
118 $_SESSION['my_url'] = $_GET['zrl'];
119 $_SESSION['authenticated'] = 0;
121 Profile::zrlInit($a);
123 // Someone came with an invalid parameter, maybe as a DDoS attempt
124 // We simply stop processing here
125 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
126 header('HTTP/1.1 403 Forbidden');
127 echo "<h1>403 Forbidden</h1>";
133 if (!empty($_GET['owt']) && App\Mode::isNormal()) {
134 $token = $_GET['owt'];
135 $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
136 Profile::openWebAuthInit($token);
140 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
141 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
142 * this way. There's a PHP flag to link the headers because by default this will over-write any other
145 * What we really need to do is output the raw headers ourselves so we can keep them separate.
148 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
150 Login::sessionAuth();
152 if (empty($_SESSION['authenticated'])) {
153 header('X-Account-Management-Status: none');
156 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
157 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
158 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
161 * check_config() is responsible for running update scripts. These automatically
162 * update the DB schema whenever we push a new one out. It also checks to see if
163 * any addons have been added or removed and reacts accordingly.
166 // in install mode, any url loads install module
167 // but we need "view" module for stylesheet
168 if (App\Mode::isInstall() && $a->module != 'view') {
169 $a->module = 'install';
170 } elseif (!App\Mode::has(App\Mode::MAINTENANCEDISABLED) && $a->module != 'view') {
171 $a->module = 'maintenance';
178 Nav::setSelected('nothing');
180 //Don't populate apps_menu if apps are private
181 $privateapps = Config::get('config', 'private_addons');
182 if ((local_user()) || (! $privateapps === "1")) {
183 $arr = ['app_menu' => $a->apps];
185 Addon::callHooks('app_menu', $arr);
187 $a->apps = $arr['app_menu'];
191 * We have already parsed the server path into $a->argc and $a->argv
193 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
194 * and use it for handling our URL request.
195 * The module file contains a few functions that we call in various circumstances
196 * and in the following order:
199 * "module"_post (only called if there are $_POST variables)
201 * "module"_content - the string return of this function contains our page body
203 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
204 * so within the module init and/or post functions and then invoke killme() to terminate
205 * further processing.
207 if (strlen($a->module)) {
210 * We will always have a module name.
211 * First see if we have an addon which is masquerading as a module.
214 // Compatibility with the Android Diaspora client
215 if ($a->module == 'stream') {
216 goaway('network?f=&order=post');
219 if ($a->module == 'conversations') {
223 if ($a->module == 'commented') {
224 goaway('network?f=&order=comment');
227 if ($a->module == 'liked') {
228 goaway('network?f=&order=comment');
231 if ($a->module == 'activity') {
232 goaway('network/?f=&conv=1');
235 if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
236 goaway('bookmarklet');
239 if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
243 if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
247 // Compatibility with the Firefox App
248 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
249 $a->module = "login";
252 $privateapps = Config::get('config', 'private_addons');
254 if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
255 //Check if module is an app and if public access to apps is allowed or not
256 if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
257 info(L10n::t("You must be logged in to use addons. "));
259 include_once "addon/{$a->module}/{$a->module}.php";
260 if (function_exists($a->module . '_module')) {
261 $a->module_loaded = true;
266 // Controller class routing
267 if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
268 $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
269 $a->module_loaded = true;
273 * If not, next look for a 'standard' program module in the 'mod' directory
276 if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
277 include_once "mod/{$a->module}.php";
278 $a->module_loaded = true;
282 * The URL provided does not resolve to a valid module.
284 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
285 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
286 * 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
287 * this will often succeed and eventually do the right thing.
289 * Otherwise we are going to emit a 404 not found.
292 if (! $a->module_loaded) {
293 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
294 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
298 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
299 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
300 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
303 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
304 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
305 $tpl = get_markup_template("404.tpl");
306 $a->page['content'] = replace_macros($tpl, [
307 '$message' => L10n::t('Page not found.')
313 * Load current theme info
315 $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
316 if (file_exists($theme_info_file)) {
317 require_once $theme_info_file;
321 /* initialise content region */
323 if (App\Mode::isNormal()) {
324 Addon::callHooks('page_content_top', $a->page['content']);
328 * Call module functions
331 if ($a->module_loaded) {
332 $a->page['page_title'] = $a->module;
335 Addon::callHooks($a->module . '_mod_init', $placeholder);
337 if ($a->module_class) {
338 call_user_func([$a->module_class, 'init']);
339 } else if (function_exists($a->module . '_init')) {
340 $func = $a->module . '_init';
344 // "rawContent" is especially meant for technical endpoints.
345 // This endpoint doesn't need any theme initialization or other comparable stuff.
346 if (!$a->error && $a->module_class) {
347 call_user_func([$a->module_class, 'rawContent']);
350 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
351 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
355 if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
356 Addon::callHooks($a->module . '_mod_post', $_POST);
357 if ($a->module_class) {
358 call_user_func([$a->module_class, 'post']);
359 } else if (function_exists($a->module . '_post')) {
360 $func = $a->module . '_post';
366 Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
367 if ($a->module_class) {
368 call_user_func([$a->module_class, 'afterpost']);
369 } else if (function_exists($a->module . '_afterpost')) {
370 $func = $a->module . '_afterpost';
376 $arr = ['content' => $a->page['content']];
377 Addon::callHooks($a->module . '_mod_content', $arr);
378 $a->page['content'] = $arr['content'];
379 if ($a->module_class) {
380 $arr = ['content' => call_user_func([$a->module_class, 'content'])];
381 } else if (function_exists($a->module . '_content')) {
382 $func = $a->module . '_content';
383 $arr = ['content' => $func($a)];
385 Addon::callHooks($a->module . '_mod_aftercontent', $arr);
386 $a->page['content'] .= $arr['content'];
389 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
390 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
396 * Create the page head after setting the language
397 * and getting any auth credentials.
399 * Moved init_pagehead() and init_page_end() to after
400 * all the module functions have executed so that all
401 * theme choices made by the modules can take effect.
407 * Build the page ending -- this is stuff that goes right before
408 * the closing </body> tag
413 * now that we've been through the module content, see if the page reported
414 * a permission problem and if so, a 403 response would seem to be in order.
416 if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
417 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
421 * Report anything which needs to be communicated in the notification area (before the main body)
423 Addon::callHooks('page_end', $a->page['content']);
426 * Add the navigation (menu) template
428 if ($a->module != 'install' && $a->module != 'maintenance') {
433 * Build the page - now that we have all the components
435 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
436 $doc = new DOMDocument();
438 $target = new DOMDocument();
439 $target->loadXML("<root></root>");
441 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
443 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
444 @$doc->loadHTML($content);
446 $xpath = new DOMXPath($doc);
448 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
450 foreach ($list as $item) {
451 $item = $target->importNode($item, true);
453 // And then append it to the target
454 $target->documentElement->appendChild($item);
458 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
459 header("Content-type: text/html; charset=utf-8");
461 echo substr($target->saveHTML(), 6, -8);
467 $profile = $a->profile;
469 header("X-Friendica-Version: " . FRIENDICA_VERSION);
470 header("Content-type: text/html; charset=utf-8");
472 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
473 header("Strict-Transport-Security: max-age=31536000");
476 // Some security stuff
477 header('X-Content-Type-Options: nosniff');
478 header('X-XSS-Protection: 1; mode=block');
479 header('X-Permitted-Cross-Domain-Policies: none');
480 header('X-Frame-Options: sameorigin');
482 // Things like embedded OSM maps don't work, when this is enabled
483 // 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'");
486 * We use $_GET["mode"] for special page templates. So we will check if we have
487 * to load another page template than the default one.
488 * The page templates are located in /view/php/ or in the theme directory.
490 if (isset($_GET["mode"])) {
491 $template = Theme::getPathForFile($_GET["mode"] . '.php');
494 // If there is no page template use the default page template
495 if (empty($template)) {
496 $template = Theme::getPathForFile("default.php");
499 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
500 require_once $template;