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 // We assume that the index.php is called by a frontend process
27 // The value is set to "true" by default in boot.php
28 $a = new App(__DIR__, false);
31 * Try to open the database;
34 require_once "include/dba.php";
36 // Missing DB connection: ERROR
37 if ($a->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$a->getMode()->has(App\Mode::DBAVAILABLE)) {
38 System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
41 // Max Load Average reached: ERROR
42 if ($a->isMaxProcessesReached() || $a->isMaxLoadReached()) {
43 header('Retry-After: 120');
44 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
46 System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
49 if (strstr($a->query_string, '.well-known/host-meta') && ($a->query_string != '.well-known/host-meta')) {
50 System::httpExit(404);
53 if (!$a->getMode()->isInstall()) {
54 if (Config::get('system', 'force_ssl') && ($a->getScheme() == "http")
55 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
56 && (substr(System::baseUrl(), 0, 8) == "https://")
57 && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
58 header("HTTP/1.1 302 Moved Temporarily");
59 header("Location: " . System::baseUrl() . "/" . $a->query_string);
66 Addon::callHooks('init_1');
69 $lang = L10n::getBrowserLanguage();
71 L10n::loadTranslationTable($lang);
74 * Important stuff we always need to do.
76 * The order of these may be important so use caution if you think they're all
77 * intertwingled with no logical order and decide to sort it out. Some of the
78 * dependencies have changed, but at least at one time in the recent past - the
79 * order was critical to everything working properly
82 // Exclude the backend processes from the session management
83 if (!$a->isBackend()) {
84 $stamp1 = microtime(true);
86 $a->saveTimestamp($stamp1, "parser");
89 Worker::executeIfIdle();
93 * Language was set earlier, but we can over-ride it in the session.
94 * We have to do it here because the session was just now opened.
96 if (!empty($_SESSION['authenticated']) && empty($_SESSION['language'])) {
97 $_SESSION['language'] = $lang;
98 // we haven't loaded user data yet, but we need user language
99 if (!empty($_SESSION['uid'])) {
100 $user = DBA::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
101 if (DBA::isResult($user)) {
102 $_SESSION['language'] = $user['language'];
107 if (!empty($_SESSION['language']) && $_SESSION['language'] !== $lang) {
108 $lang = $_SESSION['language'];
109 L10n::loadTranslationTable($lang);
112 if (!empty($_GET['zrl']) && $a->getMode()->isNormal()) {
113 $a->query_string = Profile::stripZrls($a->query_string);
115 // Only continue when the given profile link seems valid
116 // Valid profile links contain a path with "/profile/" and no query parameters
117 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
118 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
119 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
120 $_SESSION['my_url'] = $_GET['zrl'];
121 $_SESSION['authenticated'] = 0;
123 Profile::zrlInit($a);
125 // Someone came with an invalid parameter, maybe as a DDoS attempt
126 // We simply stop processing here
127 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
128 header('HTTP/1.1 403 Forbidden');
129 echo "<h1>403 Forbidden</h1>";
135 if (!empty($_GET['owt']) && $a->getMode()->isNormal()) {
136 $token = $_GET['owt'];
137 $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
138 Profile::openWebAuthInit($token);
142 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
143 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
144 * this way. There's a PHP flag to link the headers because by default this will over-write any other
147 * What we really need to do is output the raw headers ourselves so we can keep them separate.
150 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
152 Login::sessionAuth();
154 if (empty($_SESSION['authenticated'])) {
155 header('X-Account-Management-Status: none');
158 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
159 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
160 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
163 * check_config() is responsible for running update scripts. These automatically
164 * update the DB schema whenever we push a new one out. It also checks to see if
165 * any addons have been added or removed and reacts accordingly.
168 // in install mode, any url loads install module
169 // but we need "view" module for stylesheet
170 if ($a->getMode()->isInstall() && $a->module != 'view') {
171 $a->module = 'install';
172 } elseif (!$a->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $a->module != 'view') {
173 $a->module = 'maintenance';
180 Nav::setSelected('nothing');
182 //Don't populate apps_menu if apps are private
183 $privateapps = Config::get('config', 'private_addons');
184 if ((local_user()) || (! $privateapps === "1")) {
185 $arr = ['app_menu' => $a->apps];
187 Addon::callHooks('app_menu', $arr);
189 $a->apps = $arr['app_menu'];
193 * We have already parsed the server path into $a->argc and $a->argv
195 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
196 * and use it for handling our URL request.
197 * The module file contains a few functions that we call in various circumstances
198 * and in the following order:
201 * "module"_post (only called if there are $_POST variables)
203 * "module"_content - the string return of this function contains our page body
205 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
206 * so within the module init and/or post functions and then invoke killme() to terminate
207 * further processing.
209 if (strlen($a->module)) {
212 * We will always have a module name.
213 * First see if we have an addon which is masquerading as a module.
216 // Compatibility with the Android Diaspora client
217 if ($a->module == 'stream') {
218 goaway('network?f=&order=post');
221 if ($a->module == 'conversations') {
225 if ($a->module == 'commented') {
226 goaway('network?f=&order=comment');
229 if ($a->module == 'liked') {
230 goaway('network?f=&order=comment');
233 if ($a->module == 'activity') {
234 goaway('network/?f=&conv=1');
237 if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
238 goaway('bookmarklet');
241 if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
245 if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
249 // Compatibility with the Firefox App
250 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
251 $a->module = "login";
254 $privateapps = Config::get('config', 'private_addons');
256 if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
257 //Check if module is an app and if public access to apps is allowed or not
258 if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
259 info(L10n::t("You must be logged in to use addons. "));
261 include_once "addon/{$a->module}/{$a->module}.php";
262 if (function_exists($a->module . '_module')) {
263 $a->module_loaded = true;
268 // Controller class routing
269 if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
270 $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
271 $a->module_loaded = true;
275 * If not, next look for a 'standard' program module in the 'mod' directory
278 if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
279 include_once "mod/{$a->module}.php";
280 $a->module_loaded = true;
284 * The URL provided does not resolve to a valid module.
286 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
287 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
288 * 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
289 * this will often succeed and eventually do the right thing.
291 * Otherwise we are going to emit a 404 not found.
294 if (! $a->module_loaded) {
295 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
296 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
300 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
301 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
302 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
305 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
306 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
307 $tpl = get_markup_template("404.tpl");
308 $a->page['content'] = replace_macros($tpl, [
309 '$message' => L10n::t('Page not found.')
315 * Load current theme info
317 $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
318 if (file_exists($theme_info_file)) {
319 require_once $theme_info_file;
323 /* initialise content region */
325 if ($a->getMode()->isNormal()) {
326 Addon::callHooks('page_content_top', $a->page['content']);
330 * Call module functions
333 if ($a->module_loaded) {
334 $a->page['page_title'] = $a->module;
337 Addon::callHooks($a->module . '_mod_init', $placeholder);
339 if ($a->module_class) {
340 call_user_func([$a->module_class, 'init']);
341 } else if (function_exists($a->module . '_init')) {
342 $func = $a->module . '_init';
346 // "rawContent" is especially meant for technical endpoints.
347 // This endpoint doesn't need any theme initialization or other comparable stuff.
348 if (!$a->error && $a->module_class) {
349 call_user_func([$a->module_class, 'rawContent']);
352 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
353 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
357 if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
358 Addon::callHooks($a->module . '_mod_post', $_POST);
359 if ($a->module_class) {
360 call_user_func([$a->module_class, 'post']);
361 } else if (function_exists($a->module . '_post')) {
362 $func = $a->module . '_post';
368 Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
369 if ($a->module_class) {
370 call_user_func([$a->module_class, 'afterpost']);
371 } else if (function_exists($a->module . '_afterpost')) {
372 $func = $a->module . '_afterpost';
378 $arr = ['content' => $a->page['content']];
379 Addon::callHooks($a->module . '_mod_content', $arr);
380 $a->page['content'] = $arr['content'];
381 if ($a->module_class) {
382 $arr = ['content' => call_user_func([$a->module_class, 'content'])];
383 } else if (function_exists($a->module . '_content')) {
384 $func = $a->module . '_content';
385 $arr = ['content' => $func($a)];
387 Addon::callHooks($a->module . '_mod_aftercontent', $arr);
388 $a->page['content'] .= $arr['content'];
391 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
392 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
398 * Create the page head after setting the language
399 * and getting any auth credentials.
401 * Moved init_pagehead() and init_page_end() to after
402 * all the module functions have executed so that all
403 * theme choices made by the modules can take effect.
409 * Build the page ending -- this is stuff that goes right before
410 * the closing </body> tag
415 * now that we've been through the module content, see if the page reported
416 * a permission problem and if so, a 403 response would seem to be in order.
418 if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
419 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
423 * Report anything which needs to be communicated in the notification area (before the main body)
425 Addon::callHooks('page_end', $a->page['content']);
428 * Add the navigation (menu) template
430 if ($a->module != 'install' && $a->module != 'maintenance') {
435 * Build the page - now that we have all the components
437 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
438 $doc = new DOMDocument();
440 $target = new DOMDocument();
441 $target->loadXML("<root></root>");
443 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
445 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
446 @$doc->loadHTML($content);
448 $xpath = new DOMXPath($doc);
450 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
452 foreach ($list as $item) {
453 $item = $target->importNode($item, true);
455 // And then append it to the target
456 $target->documentElement->appendChild($item);
460 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
461 header("Content-type: text/html; charset=utf-8");
463 echo substr($target->saveHTML(), 6, -8);
469 $profile = $a->profile;
471 header("X-Friendica-Version: " . FRIENDICA_VERSION);
472 header("Content-type: text/html; charset=utf-8");
474 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
475 header("Strict-Transport-Security: max-age=31536000");
478 // Some security stuff
479 header('X-Content-Type-Options: nosniff');
480 header('X-XSS-Protection: 1; mode=block');
481 header('X-Permitted-Cross-Domain-Policies: none');
482 header('X-Frame-Options: sameorigin');
484 // Things like embedded OSM maps don't work, when this is enabled
485 // 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'");
488 * We use $_GET["mode"] for special page templates. So we will check if we have
489 * to load another page template than the default one.
490 * The page templates are located in /view/php/ or in the theme directory.
492 if (isset($_GET["mode"])) {
493 $template = Theme::getPathForFile($_GET["mode"] . '.php');
496 // If there is no page template use the default page template
497 if (empty($template)) {
498 $template = Theme::getPathForFile("default.php");
501 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
502 require_once $template;