Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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  1. <?php
  2. /**
  3. * @file index.php
  4. * Friendica
  5. */
  6. /**
  7. * Bootstrap the application
  8. */
  9. use Friendica\App;
  10. use Friendica\Content\Nav;
  11. use Friendica\Core\Addon;
  12. use Friendica\Core\Config;
  13. use Friendica\Core\L10n;
  14. use Friendica\Core\Session;
  15. use Friendica\Core\System;
  16. use Friendica\Core\Theme;
  17. use Friendica\Core\Worker;
  18. use Friendica\Database\DBM;
  19. use Friendica\Model\Profile;
  20. use Friendica\Module\Login;
  21. require_once 'boot.php';
  22. $a = new App(__DIR__);
  23. // We assume that the index.php is called by a frontend process
  24. // The value is set to "true" by default in boot.php
  25. $a->backend = false;
  26. // Only load config if found, don't suppress errors
  27. if (!$a->mode == App::MODE_INSTALL) {
  28. include ".htconfig.php";
  29. }
  30. /**
  31. * Try to open the database;
  32. */
  33. require_once "include/dba.php";
  34. if (!$a->mode == App::MODE_INSTALL) {
  35. if (!dba::connected()) {
  36. System::unavailable();
  37. }
  38. /**
  39. * Load configs from db. Overwrite configs from config/local.ini.php
  40. */
  41. Config::load();
  42. if ($a->max_processes_reached() || $a->maxload_reached()) {
  43. header($_SERVER["SERVER_PROTOCOL"] . ' 503 Service Temporarily Unavailable');
  44. header('Retry-After: 120');
  45. header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
  46. die("System is currently unavailable. Please try again later");
  47. }
  48. if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "http")
  49. && (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
  50. && (substr(System::baseUrl(), 0, 8) == "https://")
  51. && ($_SERVER['REQUEST_METHOD'] == 'GET')) {
  52. header("HTTP/1.1 302 Moved Temporarily");
  53. header("Location: " . System::baseUrl() . "/" . $a->query_string);
  54. exit();
  55. }
  56. Config::init();
  57. Session::init();
  58. Addon::loadHooks();
  59. Addon::callHooks('init_1');
  60. }
  61. $lang = L10n::getBrowserLanguage();
  62. L10n::loadTranslationTable($lang);
  63. /**
  64. * Important stuff we always need to do.
  65. *
  66. * The order of these may be important so use caution if you think they're all
  67. * intertwingled with no logical order and decide to sort it out. Some of the
  68. * dependencies have changed, but at least at one time in the recent past - the
  69. * order was critical to everything working properly
  70. */
  71. // Exclude the backend processes from the session management
  72. if (!$a->is_backend()) {
  73. $stamp1 = microtime(true);
  74. session_start();
  75. $a->save_timestamp($stamp1, "parser");
  76. } else {
  77. $_SESSION = [];
  78. Worker::executeIfIdle();
  79. }
  80. /**
  81. * Language was set earlier, but we can over-ride it in the session.
  82. * We have to do it here because the session was just now opened.
  83. */
  84. if (x($_SESSION, 'authenticated') && !x($_SESSION, 'language')) {
  85. // we haven't loaded user data yet, but we need user language
  86. $user = dba::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
  87. $_SESSION['language'] = $lang;
  88. if (DBM::is_result($user)) {
  89. $_SESSION['language'] = $user['language'];
  90. }
  91. }
  92. if ((x($_SESSION, 'language')) && ($_SESSION['language'] !== $lang)) {
  93. $lang = $_SESSION['language'];
  94. L10n::loadTranslationTable($lang);
  95. }
  96. if ((x($_GET,'zrl')) && $a->mode == App::MODE_NORMAL) {
  97. $a->query_string = Profile::stripZrls($a->query_string);
  98. if (!local_user()) {
  99. // Only continue when the given profile link seems valid
  100. // Valid profile links contain a path with "/profile/" and no query parameters
  101. if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
  102. strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
  103. if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
  104. $_SESSION['my_url'] = $_GET['zrl'];
  105. $_SESSION['authenticated'] = 0;
  106. }
  107. Profile::zrlInit($a);
  108. } else {
  109. // Someone came with an invalid parameter, maybe as a DDoS attempt
  110. // We simply stop processing here
  111. logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
  112. header('HTTP/1.1 403 Forbidden');
  113. echo "<h1>403 Forbidden</h1>";
  114. killme();
  115. }
  116. }
  117. }
  118. if ((x($_GET,'owt')) && $a->mode == App::MODE_NORMAL) {
  119. $token = $_GET['owt'];
  120. $a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
  121. Profile::openWebAuthInit($token);
  122. }
  123. /**
  124. * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
  125. * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
  126. * this way. There's a PHP flag to link the headers because by default this will over-write any other
  127. * link header.
  128. *
  129. * What we really need to do is output the raw headers ourselves so we can keep them separate.
  130. */
  131. // header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
  132. Login::sessionAuth();
  133. if (! x($_SESSION, 'authenticated')) {
  134. header('X-Account-Management-Status: none');
  135. }
  136. /* set up page['htmlhead'] and page['end'] for the modules to use */
  137. $a->page['htmlhead'] = '';
  138. $a->page['end'] = '';
  139. $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
  140. $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
  141. $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
  142. /*
  143. * check_config() is responsible for running update scripts. These automatically
  144. * update the DB schema whenever we push a new one out. It also checks to see if
  145. * any addons have been added or removed and reacts accordingly.
  146. */
  147. // in install mode, any url loads install module
  148. // but we need "view" module for stylesheet
  149. if ($a->mode == App::MODE_INSTALL && $a->module!="view") {
  150. $a->module = 'install';
  151. } elseif ($a->mode == App::MODE_MAINTENANCE && $a->module!="view") {
  152. $a->module = 'maintenance';
  153. } else {
  154. check_url($a);
  155. check_db(false);
  156. check_addons($a);
  157. }
  158. Nav::setSelected('nothing');
  159. //Don't populate apps_menu if apps are private
  160. $privateapps = Config::get('config', 'private_addons');
  161. if ((local_user()) || (! $privateapps === "1")) {
  162. $arr = ['app_menu' => $a->apps];
  163. Addon::callHooks('app_menu', $arr);
  164. $a->apps = $arr['app_menu'];
  165. }
  166. /**
  167. * We have already parsed the server path into $a->argc and $a->argv
  168. *
  169. * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
  170. * and use it for handling our URL request.
  171. * The module file contains a few functions that we call in various circumstances
  172. * and in the following order:
  173. *
  174. * "module"_init
  175. * "module"_post (only called if there are $_POST variables)
  176. * "module"_afterpost
  177. * "module"_content - the string return of this function contains our page body
  178. *
  179. * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
  180. * so within the module init and/or post functions and then invoke killme() to terminate
  181. * further processing.
  182. */
  183. if (strlen($a->module)) {
  184. /**
  185. * We will always have a module name.
  186. * First see if we have an addon which is masquerading as a module.
  187. */
  188. // Compatibility with the Android Diaspora client
  189. if ($a->module == 'stream') {
  190. goaway('network?f=&order=post');
  191. }
  192. if ($a->module == 'conversations') {
  193. goaway('message');
  194. }
  195. if ($a->module == 'commented') {
  196. goaway('network?f=&order=comment');
  197. }
  198. if ($a->module == 'liked') {
  199. goaway('network?f=&order=comment');
  200. }
  201. if ($a->module == 'activity') {
  202. goaway('network/?f=&conv=1');
  203. }
  204. if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
  205. goaway('bookmarklet');
  206. }
  207. if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
  208. goaway('settings');
  209. }
  210. if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
  211. goaway('search');
  212. }
  213. // Compatibility with the Firefox App
  214. if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
  215. $a->module = "login";
  216. }
  217. $privateapps = Config::get('config', 'private_addons');
  218. if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
  219. //Check if module is an app and if public access to apps is allowed or not
  220. if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
  221. info(L10n::t("You must be logged in to use addons. "));
  222. } else {
  223. include_once "addon/{$a->module}/{$a->module}.php";
  224. if (function_exists($a->module . '_module')) {
  225. $a->module_loaded = true;
  226. }
  227. }
  228. }
  229. // Controller class routing
  230. if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
  231. $a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
  232. $a->module_loaded = true;
  233. }
  234. /**
  235. * If not, next look for a 'standard' program module in the 'mod' directory
  236. */
  237. if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
  238. include_once "mod/{$a->module}.php";
  239. $a->module_loaded = true;
  240. }
  241. /**
  242. * The URL provided does not resolve to a valid module.
  243. *
  244. * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
  245. * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
  246. * 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
  247. * this will often succeed and eventually do the right thing.
  248. *
  249. * Otherwise we are going to emit a 404 not found.
  250. */
  251. if (! $a->module_loaded) {
  252. // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
  253. if ((x($_SERVER, 'QUERY_STRING')) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
  254. killme();
  255. }
  256. if ((x($_SERVER, 'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
  257. logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
  258. goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
  259. }
  260. logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
  261. header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
  262. $tpl = get_markup_template("404.tpl");
  263. $a->page['content'] = replace_macros(
  264. $tpl,
  265. [
  266. '$message' => L10n::t('Page not found.')]
  267. );
  268. }
  269. }
  270. /**
  271. * Load current theme info
  272. */
  273. $theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
  274. if (file_exists($theme_info_file)) {
  275. require_once $theme_info_file;
  276. }
  277. /* initialise content region */
  278. if (! x($a->page, 'content')) {
  279. $a->page['content'] = '';
  280. }
  281. if ($a->mode == App::MODE_NORMAL) {
  282. Addon::callHooks('page_content_top', $a->page['content']);
  283. }
  284. /**
  285. * Call module functions
  286. */
  287. if ($a->module_loaded) {
  288. $a->page['page_title'] = $a->module;
  289. $placeholder = '';
  290. if ($a->module_class) {
  291. Addon::callHooks($a->module . '_mod_init', $placeholder);
  292. call_user_func([$a->module_class, 'init']);
  293. } else if (function_exists($a->module . '_init')) {
  294. Addon::callHooks($a->module . '_mod_init', $placeholder);
  295. $func = $a->module . '_init';
  296. $func($a);
  297. }
  298. if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
  299. $func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
  300. $func($a);
  301. }
  302. if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
  303. Addon::callHooks($a->module . '_mod_post', $_POST);
  304. if ($a->module_class) {
  305. call_user_func([$a->module_class, 'post']);
  306. } else if (function_exists($a->module . '_post')) {
  307. $func = $a->module . '_post';
  308. $func($a);
  309. }
  310. }
  311. if (! $a->error) {
  312. Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
  313. if ($a->module_class) {
  314. call_user_func([$a->module_class, 'afterpost']);
  315. } else if (function_exists($a->module . '_afterpost')) {
  316. $func = $a->module . '_afterpost';
  317. $func($a);
  318. }
  319. }
  320. if (! $a->error) {
  321. $arr = ['content' => $a->page['content']];
  322. Addon::callHooks($a->module . '_mod_content', $arr);
  323. $a->page['content'] = $arr['content'];
  324. if ($a->module_class) {
  325. $arr = ['content' => call_user_func([$a->module_class, 'content'])];
  326. } else if (function_exists($a->module . '_content')) {
  327. $func = $a->module . '_content';
  328. $arr = ['content' => $func($a)];
  329. }
  330. Addon::callHooks($a->module . '_mod_aftercontent', $arr);
  331. $a->page['content'] .= $arr['content'];
  332. }
  333. if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
  334. $func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
  335. $func($a);
  336. }
  337. }
  338. /*
  339. * Create the page head after setting the language
  340. * and getting any auth credentials.
  341. *
  342. * Moved init_pagehead() and init_page_end() to after
  343. * all the module functions have executed so that all
  344. * theme choices made by the modules can take effect.
  345. */
  346. $a->init_pagehead();
  347. /*
  348. * Build the page ending -- this is stuff that goes right before
  349. * the closing </body> tag
  350. */
  351. $a->init_page_end();
  352. // If you're just visiting, let javascript take you home
  353. if (x($_SESSION, 'visitor_home')) {
  354. $homebase = $_SESSION['visitor_home'];
  355. } elseif (local_user()) {
  356. $homebase = 'profile/' . $a->user['nickname'];
  357. }
  358. if (isset($homebase)) {
  359. $a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
  360. }
  361. /*
  362. * now that we've been through the module content, see if the page reported
  363. * a permission problem and if so, a 403 response would seem to be in order.
  364. */
  365. if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
  366. header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
  367. }
  368. /*
  369. * Report anything which needs to be communicated in the notification area (before the main body)
  370. */
  371. Addon::callHooks('page_end', $a->page['content']);
  372. /*
  373. * Add the navigation (menu) template
  374. */
  375. if ($a->module != 'install' && $a->module != 'maintenance') {
  376. Nav::build($a);
  377. }
  378. /*
  379. * Add a "toggle mobile" link if we're using a mobile device
  380. */
  381. if ($a->is_mobile || $a->is_tablet) {
  382. if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
  383. $link = 'toggle_mobile?address=' . curPageURL();
  384. } else {
  385. $link = 'toggle_mobile?off=1&address=' . curPageURL();
  386. }
  387. $a->page['footer'] = replace_macros(
  388. get_markup_template("toggle_mobile_footer.tpl"),
  389. [
  390. '$toggle_link' => $link,
  391. '$toggle_text' => L10n::t('toggle mobile')]
  392. );
  393. }
  394. /**
  395. * Build the page - now that we have all the components
  396. */
  397. if (!$a->theme['stylesheet']) {
  398. $stylesheet = $a->getCurrentThemeStylesheetPath();
  399. } else {
  400. $stylesheet = $a->theme['stylesheet'];
  401. }
  402. $a->page['htmlhead'] = str_replace('{{$stylesheet}}', $stylesheet, $a->page['htmlhead']);
  403. //$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
  404. if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
  405. $doc = new DOMDocument();
  406. $target = new DOMDocument();
  407. $target->loadXML("<root></root>");
  408. $content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
  409. /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
  410. @$doc->loadHTML($content);
  411. $xpath = new DOMXPath($doc);
  412. $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
  413. foreach ($list as $item) {
  414. $item = $target->importNode($item, true);
  415. // And then append it to the target
  416. $target->documentElement->appendChild($item);
  417. }
  418. }
  419. if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
  420. header("Content-type: text/html; charset=utf-8");
  421. echo substr($target->saveHTML(), 6, -8);
  422. killme();
  423. }
  424. $page = $a->page;
  425. $profile = $a->profile;
  426. header("X-Friendica-Version: " . FRIENDICA_VERSION);
  427. header("Content-type: text/html; charset=utf-8");
  428. if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
  429. header("Strict-Transport-Security: max-age=31536000");
  430. }
  431. // Some security stuff
  432. header('X-Content-Type-Options: nosniff');
  433. header('X-XSS-Protection: 1; mode=block');
  434. header('X-Permitted-Cross-Domain-Policies: none');
  435. header('X-Frame-Options: sameorigin');
  436. // Things like embedded OSM maps don't work, when this is enabled
  437. // 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'");
  438. /*
  439. * We use $_GET["mode"] for special page templates. So we will check if we have
  440. * to load another page template than the default one.
  441. * The page templates are located in /view/php/ or in the theme directory.
  442. */
  443. if (isset($_GET["mode"])) {
  444. $template = Theme::getPathForFile($_GET["mode"] . '.php');
  445. }
  446. // If there is no page template use the default page template
  447. if (empty($template)) {
  448. $template = Theme::getPathForFile("default.php");
  449. }
  450. /// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
  451. require_once $template;
  452. killme();