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 $a = new App(__DIR__);
28 // We assume that the index.php is called by a frontend process
29 // The value is set to "true" by default in boot.php
33 * Try to open the database;
36 require_once "include/dba.php";
38 // Missing DB connection: ERROR
39 if ($a->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$a->getMode()->has(App\Mode::DBAVAILABLE)) {
40 System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
43 // Max Load Average reached: ERROR
44 if ($a->isMaxProcessesReached() || $a->isMaxLoadReached()) {
45 header('Retry-After: 120');
46 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
48 System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
51 if (strstr($a->query_string, '.well-known/host-meta') and ($a->query_string != '.well-known/host-meta')) {
52 System::httpExit(404);
55 if (!$a->getMode()->isInstall()) {
56 if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
57 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
58 && (substr(System::baseUrl(), 0, 8) == "https://")
59 && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
60 header("HTTP/1.1 302 Moved Temporarily");
61 header("Location: " . System::baseUrl() . "/" . $a->query_string);
68 Addon::callHooks('init_1');
71 $lang = L10n::getBrowserLanguage();
73 L10n::loadTranslationTable($lang);
76 * Important stuff we always need to do.
78 * The order of these may be important so use caution if you think they're all
79 * intertwingled with no logical order and decide to sort it out. Some of the
80 * dependencies have changed, but at least at one time in the recent past - the
81 * order was critical to everything working properly
84 // Exclude the backend processes from the session management
85 if (!$a->is_backend()) {
86 $stamp1 = microtime(true);
88 $a->save_timestamp($stamp1, "parser");
91 Worker::executeIfIdle();
95 * Language was set earlier, but we can over-ride it in the session.
96 * We have to do it here because the session was just now opened.
98 if (!empty($_SESSION['authenticated']) && empty($_SESSION['language'])) {
99 $_SESSION['language'] = $lang;
100 // we haven't loaded user data yet, but we need user language
101 if (!empty($_SESSION['uid'])) {
102 $user = DBA::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
103 if (DBA::isResult($user)) {
104 $_SESSION['language'] = $user['language'];
109 if (!empty($_SESSION['language']) && $_SESSION['language'] !== $lang) {
110 $lang = $_SESSION['language'];
111 L10n::loadTranslationTable($lang);
114 if (!empty($_GET['zrl']) && $a->getMode()->isNormal()) {
115 $a->query_string = Profile::stripZrls($a->query_string);
117 // Only continue when the given profile link seems valid
118 // Valid profile links contain a path with "/profile/" and no query parameters
119 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
120 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
121 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
122 $_SESSION['my_url'] = $_GET['zrl'];
123 $_SESSION['authenticated'] = 0;
125 Profile::zrlInit($a);
127 // Someone came with an invalid parameter, maybe as a DDoS attempt
128 // We simply stop processing here
129 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
130 header('HTTP/1.1 403 Forbidden');
131 echo "<h1>403 Forbidden</h1>";
137 if (!empty($_GET['owt']) && $a->getMode()->isNormal()) {
138 $token = $_GET['owt'];
139 $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
140 Profile::openWebAuthInit($token);
144 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
145 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
146 * this way. There's a PHP flag to link the headers because by default this will over-write any other
149 * What we really need to do is output the raw headers ourselves so we can keep them separate.
152 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
154 Login::sessionAuth();
156 if (empty($_SESSION['authenticated'])) {
157 header('X-Account-Management-Status: none');
160 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
161 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
162 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
165 * check_config() is responsible for running update scripts. These automatically
166 * update the DB schema whenever we push a new one out. It also checks to see if
167 * any addons have been added or removed and reacts accordingly.
170 // in install mode, any url loads install module
171 // but we need "view" module for stylesheet
172 if ($a->getMode()->isInstall() && $a->module != 'view') {
173 $a->module = 'install';
174 } elseif (!$a->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $a->module != 'view') {
175 $a->module = 'maintenance';
182 Nav::setSelected('nothing');
184 //Don't populate apps_menu if apps are private
185 $privateapps = Config::get('config', 'private_addons');
186 if ((local_user()) || (! $privateapps === "1")) {
187 $arr = ['app_menu' => $a->apps];
189 Addon::callHooks('app_menu', $arr);
191 $a->apps = $arr['app_menu'];
195 * We have already parsed the server path into $a->argc and $a->argv
197 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
198 * and use it for handling our URL request.
199 * The module file contains a few functions that we call in various circumstances
200 * and in the following order:
203 * "module"_post (only called if there are $_POST variables)
205 * "module"_content - the string return of this function contains our page body
207 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
208 * so within the module init and/or post functions and then invoke killme() to terminate
209 * further processing.
211 if (strlen($a->module)) {
214 * We will always have a module name.
215 * First see if we have an addon which is masquerading as a module.
218 // Compatibility with the Android Diaspora client
219 if ($a->module == 'stream') {
220 goaway('network?f=&order=post');
223 if ($a->module == 'conversations') {
227 if ($a->module == 'commented') {
228 goaway('network?f=&order=comment');
231 if ($a->module == 'liked') {
232 goaway('network?f=&order=comment');
235 if ($a->module == 'activity') {
236 goaway('network/?f=&conv=1');
239 if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
240 goaway('bookmarklet');
243 if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
247 if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
251 // Compatibility with the Firefox App
252 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
253 $a->module = "login";
256 $privateapps = Config::get('config', 'private_addons');
258 if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
259 //Check if module is an app and if public access to apps is allowed or not
260 if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
261 info(L10n::t("You must be logged in to use addons. "));
263 include_once "addon/{$a->module}/{$a->module}.php";
264 if (function_exists($a->module . '_module')) {
265 $a->module_loaded = true;
270 // Controller class routing
271 if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
272 $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
273 $a->module_loaded = true;
277 * If not, next look for a 'standard' program module in the 'mod' directory
280 if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
281 include_once "mod/{$a->module}.php";
282 $a->module_loaded = true;
286 * The URL provided does not resolve to a valid module.
288 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
289 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
290 * 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
291 * this will often succeed and eventually do the right thing.
293 * Otherwise we are going to emit a 404 not found.
296 if (! $a->module_loaded) {
297 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
298 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
302 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
303 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
304 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
307 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
308 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
309 $tpl = get_markup_template("404.tpl");
310 $a->page['content'] = replace_macros($tpl, [
311 '$message' => L10n::t('Page not found.')
317 * Load current theme info
319 $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
320 if (file_exists($theme_info_file)) {
321 require_once $theme_info_file;
325 /* initialise content region */
327 if ($a->getMode()->isNormal()) {
328 Addon::callHooks('page_content_top', $a->page['content']);
332 * Call module functions
335 if ($a->module_loaded) {
336 $a->page['page_title'] = $a->module;
339 Addon::callHooks($a->module . '_mod_init', $placeholder);
341 if ($a->module_class) {
342 call_user_func([$a->module_class, 'init']);
343 } else if (function_exists($a->module . '_init')) {
344 $func = $a->module . '_init';
348 // "rawContent" is especially meant for technical endpoints.
349 // This endpoint doesn't need any theme initialization or other comparable stuff.
350 if (!$a->error && $a->module_class) {
351 call_user_func([$a->module_class, 'rawContent']);
354 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
355 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
359 if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
360 Addon::callHooks($a->module . '_mod_post', $_POST);
361 if ($a->module_class) {
362 call_user_func([$a->module_class, 'post']);
363 } else if (function_exists($a->module . '_post')) {
364 $func = $a->module . '_post';
370 Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
371 if ($a->module_class) {
372 call_user_func([$a->module_class, 'afterpost']);
373 } else if (function_exists($a->module . '_afterpost')) {
374 $func = $a->module . '_afterpost';
380 $arr = ['content' => $a->page['content']];
381 Addon::callHooks($a->module . '_mod_content', $arr);
382 $a->page['content'] = $arr['content'];
383 if ($a->module_class) {
384 $arr = ['content' => call_user_func([$a->module_class, 'content'])];
385 } else if (function_exists($a->module . '_content')) {
386 $func = $a->module . '_content';
387 $arr = ['content' => $func($a)];
389 Addon::callHooks($a->module . '_mod_aftercontent', $arr);
390 $a->page['content'] .= $arr['content'];
393 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
394 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
400 * Create the page head after setting the language
401 * and getting any auth credentials.
403 * Moved init_pagehead() and init_page_end() to after
404 * all the module functions have executed so that all
405 * theme choices made by the modules can take effect.
411 * Build the page ending -- this is stuff that goes right before
412 * the closing </body> tag
417 * now that we've been through the module content, see if the page reported
418 * a permission problem and if so, a 403 response would seem to be in order.
420 if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
421 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
425 * Report anything which needs to be communicated in the notification area (before the main body)
427 Addon::callHooks('page_end', $a->page['content']);
430 * Add the navigation (menu) template
432 if ($a->module != 'install' && $a->module != 'maintenance') {
437 * Build the page - now that we have all the components
439 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
440 $doc = new DOMDocument();
442 $target = new DOMDocument();
443 $target->loadXML("<root></root>");
445 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
447 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
448 @$doc->loadHTML($content);
450 $xpath = new DOMXPath($doc);
452 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
454 foreach ($list as $item) {
455 $item = $target->importNode($item, true);
457 // And then append it to the target
458 $target->documentElement->appendChild($item);
462 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
463 header("Content-type: text/html; charset=utf-8");
465 echo substr($target->saveHTML(), 6, -8);
471 $profile = $a->profile;
473 header("X-Friendica-Version: " . FRIENDICA_VERSION);
474 header("Content-type: text/html; charset=utf-8");
476 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
477 header("Strict-Transport-Security: max-age=31536000");
480 // Some security stuff
481 header('X-Content-Type-Options: nosniff');
482 header('X-XSS-Protection: 1; mode=block');
483 header('X-Permitted-Cross-Domain-Policies: none');
484 header('X-Frame-Options: sameorigin');
486 // Things like embedded OSM maps don't work, when this is enabled
487 // 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'");
490 * We use $_GET["mode"] for special page templates. So we will check if we have
491 * to load another page template than the default one.
492 * The page templates are located in /view/php/ or in the theme directory.
494 if (isset($_GET["mode"])) {
495 $template = Theme::getPathForFile($_GET["mode"] . '.php');
498 // If there is no page template use the default page template
499 if (empty($template)) {
500 $template = Theme::getPathForFile("default.php");
503 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
504 require_once $template;