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