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() . "/" . $a->query_string);
46 System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
49 if (!$a->getMode()->isInstall()) {
50 if (Config::get('system', 'force_ssl') && ($a->getScheme() == "http")
51 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
52 && (substr(System::baseUrl(), 0, 8) == "https://")
53 && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
54 header("HTTP/1.1 302 Moved Temporarily");
55 header("Location: " . System::baseUrl() . "/" . $a->query_string);
62 Addon::callHooks('init_1');
65 $lang = L10n::getBrowserLanguage();
67 L10n::loadTranslationTable($lang);
70 * Important stuff we always need to do.
72 * The order of these may be important so use caution if you think they're all
73 * intertwingled with no logical order and decide to sort it out. Some of the
74 * dependencies have changed, but at least at one time in the recent past - the
75 * order was critical to everything working properly
78 // Exclude the backend processes from the session management
79 if (!$a->isBackend()) {
80 $stamp1 = microtime(true);
82 $a->saveTimestamp($stamp1, "parser");
85 Worker::executeIfIdle();
89 * Language was set earlier, but we can over-ride it in the session.
90 * We have to do it here because the session was just now opened.
92 if (!empty($_SESSION['authenticated']) && empty($_SESSION['language'])) {
93 $_SESSION['language'] = $lang;
94 // we haven't loaded user data yet, but we need user language
95 if (!empty($_SESSION['uid'])) {
96 $user = DBA::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
97 if (DBA::isResult($user)) {
98 $_SESSION['language'] = $user['language'];
103 if (!empty($_SESSION['language']) && $_SESSION['language'] !== $lang) {
104 $lang = $_SESSION['language'];
105 L10n::loadTranslationTable($lang);
108 if (!empty($_GET['zrl']) && $a->getMode()->isNormal()) {
109 $a->query_string = Profile::stripZrls($a->query_string);
111 // Only continue when the given profile link seems valid
112 // Valid profile links contain a path with "/profile/" and no query parameters
113 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
114 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
115 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
116 $_SESSION['my_url'] = $_GET['zrl'];
117 $_SESSION['authenticated'] = 0;
119 Profile::zrlInit($a);
121 // Someone came with an invalid parameter, maybe as a DDoS attempt
122 // We simply stop processing here
123 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
124 header('HTTP/1.1 403 Forbidden');
125 echo "<h1>403 Forbidden</h1>";
131 if (!empty($_GET['owt']) && $a->getMode()->isNormal()) {
132 $token = $_GET['owt'];
133 $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
134 Profile::openWebAuthInit($token);
138 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
139 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
140 * this way. There's a PHP flag to link the headers because by default this will over-write any other
143 * What we really need to do is output the raw headers ourselves so we can keep them separate.
146 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
148 Login::sessionAuth();
150 if (empty($_SESSION['authenticated'])) {
151 header('X-Account-Management-Status: none');
154 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
155 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
156 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
159 * check_config() is responsible for running update scripts. These automatically
160 * update the DB schema whenever we push a new one out. It also checks to see if
161 * any addons have been added or removed and reacts accordingly.
164 // in install mode, any url loads install module
165 // but we need "view" module for stylesheet
166 if ($a->getMode()->isInstall() && $a->module != 'view') {
167 $a->module = 'install';
168 } elseif (!$a->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $a->module != 'view') {
169 $a->module = 'maintenance';
176 Nav::setSelected('nothing');
178 //Don't populate apps_menu if apps are private
179 $privateapps = Config::get('config', 'private_addons');
180 if ((local_user()) || (! $privateapps === "1")) {
181 $arr = ['app_menu' => $a->apps];
183 Addon::callHooks('app_menu', $arr);
185 $a->apps = $arr['app_menu'];
189 * We have already parsed the server path into $a->argc and $a->argv
191 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
192 * and use it for handling our URL request.
193 * The module file contains a few functions that we call in various circumstances
194 * and in the following order:
197 * "module"_post (only called if there are $_POST variables)
199 * "module"_content - the string return of this function contains our page body
201 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
202 * so within the module init and/or post functions and then invoke killme() to terminate
203 * further processing.
205 if (strlen($a->module)) {
208 * We will always have a module name.
209 * First see if we have an addon which is masquerading as a module.
212 // Compatibility with the Android Diaspora client
213 if ($a->module == 'stream') {
214 goaway('network?f=&order=post');
217 if ($a->module == 'conversations') {
221 if ($a->module == 'commented') {
222 goaway('network?f=&order=comment');
225 if ($a->module == 'liked') {
226 goaway('network?f=&order=comment');
229 if ($a->module == 'activity') {
230 goaway('network/?f=&conv=1');
233 if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
234 goaway('bookmarklet');
237 if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
241 if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
245 // Compatibility with the Firefox App
246 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
247 $a->module = "login";
250 $privateapps = Config::get('config', 'private_addons');
252 if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
253 //Check if module is an app and if public access to apps is allowed or not
254 if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
255 info(L10n::t("You must be logged in to use addons. "));
257 include_once "addon/{$a->module}/{$a->module}.php";
258 if (function_exists($a->module . '_module')) {
259 $a->module_loaded = true;
264 // Controller class routing
265 if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
266 $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
267 $a->module_loaded = true;
271 * If not, next look for a 'standard' program module in the 'mod' directory
274 if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
275 include_once "mod/{$a->module}.php";
276 $a->module_loaded = true;
280 * The URL provided does not resolve to a valid module.
282 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
283 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
284 * 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
285 * this will often succeed and eventually do the right thing.
287 * Otherwise we are going to emit a 404 not found.
290 if (! $a->module_loaded) {
291 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
292 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
296 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
297 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
298 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
301 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
302 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
303 $tpl = get_markup_template("404.tpl");
304 $a->page['content'] = replace_macros($tpl, [
305 '$message' => L10n::t('Page not found.')
311 * Load current theme info
313 $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
314 if (file_exists($theme_info_file)) {
315 require_once $theme_info_file;
319 /* initialise content region */
321 if ($a->getMode()->isNormal()) {
322 Addon::callHooks('page_content_top', $a->page['content']);
326 * Call module functions
329 if ($a->module_loaded) {
330 $a->page['page_title'] = $a->module;
333 Addon::callHooks($a->module . '_mod_init', $placeholder);
335 if ($a->module_class) {
336 call_user_func([$a->module_class, 'init']);
337 } else if (function_exists($a->module . '_init')) {
338 $func = $a->module . '_init';
342 // "rawContent" is especially meant for technical endpoints.
343 // This endpoint doesn't need any theme initialization or other comparable stuff.
344 if (!$a->error && $a->module_class) {
345 call_user_func([$a->module_class, 'rawContent']);
348 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
349 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
353 if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
354 Addon::callHooks($a->module . '_mod_post', $_POST);
355 if ($a->module_class) {
356 call_user_func([$a->module_class, 'post']);
357 } else if (function_exists($a->module . '_post')) {
358 $func = $a->module . '_post';
364 Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
365 if ($a->module_class) {
366 call_user_func([$a->module_class, 'afterpost']);
367 } else if (function_exists($a->module . '_afterpost')) {
368 $func = $a->module . '_afterpost';
374 $arr = ['content' => $a->page['content']];
375 Addon::callHooks($a->module . '_mod_content', $arr);
376 $a->page['content'] = $arr['content'];
377 if ($a->module_class) {
378 $arr = ['content' => call_user_func([$a->module_class, 'content'])];
379 } else if (function_exists($a->module . '_content')) {
380 $func = $a->module . '_content';
381 $arr = ['content' => $func($a)];
383 Addon::callHooks($a->module . '_mod_aftercontent', $arr);
384 $a->page['content'] .= $arr['content'];
387 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
388 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
394 * Create the page head after setting the language
395 * and getting any auth credentials.
397 * Moved init_pagehead() and init_page_end() to after
398 * all the module functions have executed so that all
399 * theme choices made by the modules can take effect.
405 * Build the page ending -- this is stuff that goes right before
406 * the closing </body> tag
411 * now that we've been through the module content, see if the page reported
412 * a permission problem and if so, a 403 response would seem to be in order.
414 if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
415 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
419 * Report anything which needs to be communicated in the notification area (before the main body)
421 Addon::callHooks('page_end', $a->page['content']);
424 * Add the navigation (menu) template
426 if ($a->module != 'install' && $a->module != 'maintenance') {
431 * Build the page - now that we have all the components
433 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
434 $doc = new DOMDocument();
436 $target = new DOMDocument();
437 $target->loadXML("<root></root>");
439 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
441 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
442 @$doc->loadHTML($content);
444 $xpath = new DOMXPath($doc);
446 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
448 foreach ($list as $item) {
449 $item = $target->importNode($item, true);
451 // And then append it to the target
452 $target->documentElement->appendChild($item);
456 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
457 header("Content-type: text/html; charset=utf-8");
459 echo substr($target->saveHTML(), 6, -8);
465 $profile = $a->profile;
467 header("X-Friendica-Version: " . FRIENDICA_VERSION);
468 header("Content-type: text/html; charset=utf-8");
470 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
471 header("Strict-Transport-Security: max-age=31536000");
474 // Some security stuff
475 header('X-Content-Type-Options: nosniff');
476 header('X-XSS-Protection: 1; mode=block');
477 header('X-Permitted-Cross-Domain-Policies: none');
478 header('X-Frame-Options: sameorigin');
480 // Things like embedded OSM maps don't work, when this is enabled
481 // 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'");
484 * We use $_GET["mode"] for special page templates. So we will check if we have
485 * to load another page template than the default one.
486 * The page templates are located in /view/php/ or in the theme directory.
488 if (isset($_GET["mode"])) {
489 $template = Theme::getPathForFile($_GET["mode"] . '.php');
492 // If there is no page template use the default page template
493 if (empty($template)) {
494 $template = Theme::getPathForFile("default.php");
497 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
498 require_once $template;