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\Database\DBM;
22 use Friendica\Model\Profile;
23 use Friendica\Module\Login;
25 require_once 'boot.php';
27 $a = new App(__DIR__);
29 // We assume that the index.php is called by a frontend process
30 // The value is set to "true" by default in boot.php
34 * Try to open the database;
37 require_once "include/dba.php";
39 // Missing DB connection: ERROR
40 if ($a->mode & App::MODE_LOCALCONFIGPRESENT && !($a->mode & App::MODE_DBAVAILABLE)) {
41 System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
44 // Max Load Average reached: ERROR
45 if ($a->isMaxProcessesReached() || $a->isMaxLoadReached()) {
46 header('Retry-After: 120');
47 header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
49 System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
52 if ($a->isInstallMode()) {
53 if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
54 && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
55 && (substr(System::baseUrl(), 0, 8) == "https://")
56 && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
57 header("HTTP/1.1 302 Moved Temporarily");
58 header("Location: " . System::baseUrl() . "/" . $a->query_string);
65 Addon::callHooks('init_1');
68 $lang = L10n::getBrowserLanguage();
70 L10n::loadTranslationTable($lang);
73 * Important stuff we always need to do.
75 * The order of these may be important so use caution if you think they're all
76 * intertwingled with no logical order and decide to sort it out. Some of the
77 * dependencies have changed, but at least at one time in the recent past - the
78 * order was critical to everything working properly
81 // Exclude the backend processes from the session management
82 if (!$a->is_backend()) {
83 $stamp1 = microtime(true);
85 $a->save_timestamp($stamp1, "parser");
88 Worker::executeIfIdle();
92 * Language was set earlier, but we can over-ride it in the session.
93 * We have to do it here because the session was just now opened.
95 if (x($_SESSION, 'authenticated') && !x($_SESSION, 'language')) {
96 // we haven't loaded user data yet, but we need user language
97 $user = dba::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
98 $_SESSION['language'] = $lang;
99 if (DBM::is_result($user)) {
100 $_SESSION['language'] = $user['language'];
104 if ((x($_SESSION, 'language')) && ($_SESSION['language'] !== $lang)) {
105 $lang = $_SESSION['language'];
106 L10n::loadTranslationTable($lang);
109 if ((x($_GET,'zrl')) && $a->mode == App::MODE_NORMAL) {
110 $a->query_string = Profile::stripZrls($a->query_string);
112 // Only continue when the given profile link seems valid
113 // Valid profile links contain a path with "/profile/" and no query parameters
114 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
115 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
116 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
117 $_SESSION['my_url'] = $_GET['zrl'];
118 $_SESSION['authenticated'] = 0;
120 Profile::zrlInit($a);
122 // Someone came with an invalid parameter, maybe as a DDoS attempt
123 // We simply stop processing here
124 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
125 header('HTTP/1.1 403 Forbidden');
126 echo "<h1>403 Forbidden</h1>";
132 if ((x($_GET,'owt')) && $a->mode == App::MODE_NORMAL) {
133 $token = $_GET['owt'];
134 $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
135 Profile::openWebAuthInit($token);
139 * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
140 * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
141 * this way. There's a PHP flag to link the headers because by default this will over-write any other
144 * What we really need to do is output the raw headers ourselves so we can keep them separate.
147 // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
149 Login::sessionAuth();
151 if (! x($_SESSION, 'authenticated')) {
152 header('X-Account-Management-Status: none');
155 /* set up page['htmlhead'] and page['end'] for the modules to use */
156 $a->page['htmlhead'] = '';
157 $a->page['end'] = '';
159 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
160 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
161 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
164 * check_config() is responsible for running update scripts. These automatically
165 * update the DB schema whenever we push a new one out. It also checks to see if
166 * any addons have been added or removed and reacts accordingly.
169 // in install mode, any url loads install module
170 // but we need "view" module for stylesheet
171 if ($a->isInstallMode() && $a->module!="view") {
172 $a->module = 'install';
173 } elseif (!($a->mode & App::MODE_MAINTENANCEDISABLED) && $a->module != "view") {
174 $a->module = 'maintenance';
181 Nav::setSelected('nothing');
183 //Don't populate apps_menu if apps are private
184 $privateapps = Config::get('config', 'private_addons');
185 if ((local_user()) || (! $privateapps === "1")) {
186 $arr = ['app_menu' => $a->apps];
188 Addon::callHooks('app_menu', $arr);
190 $a->apps = $arr['app_menu'];
194 * We have already parsed the server path into $a->argc and $a->argv
196 * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
197 * and use it for handling our URL request.
198 * The module file contains a few functions that we call in various circumstances
199 * and in the following order:
202 * "module"_post (only called if there are $_POST variables)
204 * "module"_content - the string return of this function contains our page body
206 * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
207 * so within the module init and/or post functions and then invoke killme() to terminate
208 * further processing.
210 if (strlen($a->module)) {
213 * We will always have a module name.
214 * First see if we have an addon which is masquerading as a module.
217 // Compatibility with the Android Diaspora client
218 if ($a->module == 'stream') {
219 goaway('network?f=&order=post');
222 if ($a->module == 'conversations') {
226 if ($a->module == 'commented') {
227 goaway('network?f=&order=comment');
230 if ($a->module == 'liked') {
231 goaway('network?f=&order=comment');
234 if ($a->module == 'activity') {
235 goaway('network/?f=&conv=1');
238 if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
239 goaway('bookmarklet');
242 if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
246 if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
250 // Compatibility with the Firefox App
251 if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
252 $a->module = "login";
255 $privateapps = Config::get('config', 'private_addons');
257 if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
258 //Check if module is an app and if public access to apps is allowed or not
259 if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
260 info(L10n::t("You must be logged in to use addons. "));
262 include_once "addon/{$a->module}/{$a->module}.php";
263 if (function_exists($a->module . '_module')) {
264 $a->module_loaded = true;
269 // Controller class routing
270 if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
271 $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
272 $a->module_loaded = true;
276 * If not, next look for a 'standard' program module in the 'mod' directory
279 if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
280 include_once "mod/{$a->module}.php";
281 $a->module_loaded = true;
285 * The URL provided does not resolve to a valid module.
287 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
288 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
289 * 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
290 * this will often succeed and eventually do the right thing.
292 * Otherwise we are going to emit a 404 not found.
295 if (! $a->module_loaded) {
296 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
297 if ((x($_SERVER, 'QUERY_STRING')) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
301 if ((x($_SERVER, 'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
302 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
303 goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
306 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
307 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
308 $tpl = get_markup_template("404.tpl");
309 $a->page['content'] = replace_macros(
312 '$message' => L10n::t('Page not found.')]
318 * Load current theme info
320 $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
321 if (file_exists($theme_info_file)) {
322 require_once $theme_info_file;
326 /* initialise content region */
328 if (! x($a->page, 'content')) {
329 $a->page['content'] = '';
332 if ($a->mode == App::MODE_NORMAL) {
333 Addon::callHooks('page_content_top', $a->page['content']);
337 * Call module functions
340 if ($a->module_loaded) {
341 $a->page['page_title'] = $a->module;
344 if ($a->module_class) {
345 Addon::callHooks($a->module . '_mod_init', $placeholder);
346 call_user_func([$a->module_class, 'init']);
347 } else if (function_exists($a->module . '_init')) {
348 Addon::callHooks($a->module . '_mod_init', $placeholder);
349 $func = $a->module . '_init';
353 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
354 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
358 if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
359 Addon::callHooks($a->module . '_mod_post', $_POST);
360 if ($a->module_class) {
361 call_user_func([$a->module_class, 'post']);
362 } else if (function_exists($a->module . '_post')) {
363 $func = $a->module . '_post';
369 Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
370 if ($a->module_class) {
371 call_user_func([$a->module_class, 'afterpost']);
372 } else if (function_exists($a->module . '_afterpost')) {
373 $func = $a->module . '_afterpost';
379 $arr = ['content' => $a->page['content']];
380 Addon::callHooks($a->module . '_mod_content', $arr);
381 $a->page['content'] = $arr['content'];
382 if ($a->module_class) {
383 $arr = ['content' => call_user_func([$a->module_class, 'content'])];
384 } else if (function_exists($a->module . '_content')) {
385 $func = $a->module . '_content';
386 $arr = ['content' => $func($a)];
388 Addon::callHooks($a->module . '_mod_aftercontent', $arr);
389 $a->page['content'] .= $arr['content'];
392 if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
393 $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
399 * Create the page head after setting the language
400 * and getting any auth credentials.
402 * Moved init_pagehead() and init_page_end() to after
403 * all the module functions have executed so that all
404 * theme choices made by the modules can take effect.
410 * Build the page ending -- this is stuff that goes right before
411 * the closing </body> tag
415 // If you're just visiting, let javascript take you home
416 if (x($_SESSION, 'visitor_home')) {
417 $homebase = $_SESSION['visitor_home'];
418 } elseif (local_user()) {
419 $homebase = 'profile/' . $a->user['nickname'];
422 if (isset($homebase)) {
423 $a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
427 * now that we've been through the module content, see if the page reported
428 * a permission problem and if so, a 403 response would seem to be in order.
430 if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
431 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
435 * Report anything which needs to be communicated in the notification area (before the main body)
437 Addon::callHooks('page_end', $a->page['content']);
440 * Add the navigation (menu) template
442 if ($a->module != 'install' && $a->module != 'maintenance') {
447 * Add a "toggle mobile" link if we're using a mobile device
449 if ($a->is_mobile || $a->is_tablet) {
450 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
451 $link = 'toggle_mobile?address=' . curPageURL();
453 $link = 'toggle_mobile?off=1&address=' . curPageURL();
455 $a->page['footer'] = replace_macros(
456 get_markup_template("toggle_mobile_footer.tpl"),
458 '$toggle_link' => $link,
459 '$toggle_text' => L10n::t('toggle mobile')]
464 * Build the page - now that we have all the components
467 if (!$a->theme['stylesheet']) {
468 $stylesheet = $a->getCurrentThemeStylesheetPath();
470 $stylesheet = $a->theme['stylesheet'];
473 $a->page['htmlhead'] = str_replace('{{$stylesheet}}', $stylesheet, $a->page['htmlhead']);
474 //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
476 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
477 $doc = new DOMDocument();
479 $target = new DOMDocument();
480 $target->loadXML("<root></root>");
482 $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
484 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
485 @$doc->loadHTML($content);
487 $xpath = new DOMXPath($doc);
489 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
491 foreach ($list as $item) {
492 $item = $target->importNode($item, true);
494 // And then append it to the target
495 $target->documentElement->appendChild($item);
499 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
500 header("Content-type: text/html; charset=utf-8");
502 echo substr($target->saveHTML(), 6, -8);
508 $profile = $a->profile;
510 header("X-Friendica-Version: " . FRIENDICA_VERSION);
511 header("Content-type: text/html; charset=utf-8");
513 if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
514 header("Strict-Transport-Security: max-age=31536000");
517 // Some security stuff
518 header('X-Content-Type-Options: nosniff');
519 header('X-XSS-Protection: 1; mode=block');
520 header('X-Permitted-Cross-Domain-Policies: none');
521 header('X-Frame-Options: sameorigin');
523 // Things like embedded OSM maps don't work, when this is enabled
524 // 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'");
527 * We use $_GET["mode"] for special page templates. So we will check if we have
528 * to load another page template than the default one.
529 * The page templates are located in /view/php/ or in the theme directory.
531 if (isset($_GET["mode"])) {
532 $template = Theme::getPathForFile($_GET["mode"] . '.php');
535 // If there is no page template use the default page template
536 if (empty($template)) {
537 $template = Theme::getPathForFile("default.php");
540 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
541 require_once $template;