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