Philipp Holzer
5a02e39a65
- renamed a lot of App methods to CamelCase - replaced direct public variables with get-/set-Methods
498 lines
15 KiB
PHP
498 lines
15 KiB
PHP
<?php
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/**
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* @file index.php
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* Friendica
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*/
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/**
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* Bootstrap the application
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*/
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use Friendica\App;
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use Friendica\Content\Nav;
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\L10n;
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use Friendica\Core\Session;
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use Friendica\Core\System;
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use Friendica\Core\Theme;
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use Friendica\Core\Worker;
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use Friendica\Database\DBA;
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use Friendica\Model\Profile;
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use Friendica\Module\Login;
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require_once 'boot.php';
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// We assume that the index.php is called by a frontend process
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// The value is set to "true" by default in boot.php
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$a = new App(__DIR__, false);
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/**
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* Try to open the database;
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*/
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require_once "include/dba.php";
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// Missing DB connection: ERROR
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if ($a->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$a->getMode()->has(App\Mode::DBAVAILABLE)) {
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System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
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}
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// Max Load Average reached: ERROR
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if ($a->isMaxProcessesReached() || $a->isMaxLoadReached()) {
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header('Retry-After: 120');
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header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
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System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'System is currently overloaded. Please try again later.']);
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}
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if (!$a->getMode()->isInstall()) {
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if (Config::get('system', 'force_ssl') && ($a->getScheme() == "http")
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&& (intval(Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL)
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&& (substr(System::baseUrl(), 0, 8) == "https://")
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&& ($_SERVER['REQUEST_METHOD'] == 'GET')) {
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header("HTTP/1.1 302 Moved Temporarily");
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header("Location: " . System::baseUrl() . "/" . $a->query_string);
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exit();
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}
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Config::init();
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Session::init();
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Addon::loadHooks();
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Addon::callHooks('init_1');
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}
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$lang = L10n::getBrowserLanguage();
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L10n::loadTranslationTable($lang);
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/**
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* Important stuff we always need to do.
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*
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* The order of these may be important so use caution if you think they're all
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* intertwingled with no logical order and decide to sort it out. Some of the
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* dependencies have changed, but at least at one time in the recent past - the
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* order was critical to everything working properly
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*/
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// Exclude the backend processes from the session management
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if (!$a->isBackend()) {
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$stamp1 = microtime(true);
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session_start();
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$a->saveTimestamp($stamp1, "parser");
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} else {
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$_SESSION = [];
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Worker::executeIfIdle();
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}
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/**
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* Language was set earlier, but we can over-ride it in the session.
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* We have to do it here because the session was just now opened.
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*/
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if (!empty($_SESSION['authenticated']) && empty($_SESSION['language'])) {
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$_SESSION['language'] = $lang;
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// we haven't loaded user data yet, but we need user language
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if (!empty($_SESSION['uid'])) {
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$user = DBA::selectFirst('user', ['language'], ['uid' => $_SESSION['uid']]);
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if (DBA::isResult($user)) {
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$_SESSION['language'] = $user['language'];
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}
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}
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}
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if (!empty($_SESSION['language']) && $_SESSION['language'] !== $lang) {
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$lang = $_SESSION['language'];
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L10n::loadTranslationTable($lang);
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}
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if (!empty($_GET['zrl']) && $a->getMode()->isNormal()) {
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$a->query_string = Profile::stripZrls($a->query_string);
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if (!local_user()) {
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// Only continue when the given profile link seems valid
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// Valid profile links contain a path with "/profile/" and no query parameters
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if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
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strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
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if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
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$_SESSION['my_url'] = $_GET['zrl'];
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$_SESSION['authenticated'] = 0;
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}
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Profile::zrlInit($a);
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} else {
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// Someone came with an invalid parameter, maybe as a DDoS attempt
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// We simply stop processing here
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logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
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header('HTTP/1.1 403 Forbidden');
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echo "<h1>403 Forbidden</h1>";
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exit();
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}
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}
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}
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if (!empty($_GET['owt']) && $a->getMode()->isNormal()) {
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$token = $_GET['owt'];
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$a->query_string = Profile::stripQueryParam($a->query_string, 'owt');
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Profile::openWebAuthInit($token);
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}
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/**
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* For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
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* Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
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* this way. There's a PHP flag to link the headers because by default this will over-write any other
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* link header.
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*
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* What we really need to do is output the raw headers ourselves so we can keep them separate.
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*/
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// header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
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Login::sessionAuth();
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if (empty($_SESSION['authenticated'])) {
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header('X-Account-Management-Status: none');
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}
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$_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
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$_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
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$_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
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/*
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* check_config() is responsible for running update scripts. These automatically
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* update the DB schema whenever we push a new one out. It also checks to see if
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* any addons have been added or removed and reacts accordingly.
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*/
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// in install mode, any url loads install module
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// but we need "view" module for stylesheet
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if ($a->getMode()->isInstall() && $a->module != 'view') {
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$a->module = 'install';
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} elseif (!$a->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $a->module != 'view') {
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$a->module = 'maintenance';
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} else {
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check_url($a);
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check_db(false);
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Addon::check();
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}
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Nav::setSelected('nothing');
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//Don't populate apps_menu if apps are private
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$privateapps = Config::get('config', 'private_addons');
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if ((local_user()) || (! $privateapps === "1")) {
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$arr = ['app_menu' => $a->apps];
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Addon::callHooks('app_menu', $arr);
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$a->apps = $arr['app_menu'];
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}
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/**
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* We have already parsed the server path into $a->argc and $a->argv
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*
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* $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
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* and use it for handling our URL request.
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* The module file contains a few functions that we call in various circumstances
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* and in the following order:
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*
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* "module"_init
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* "module"_post (only called if there are $_POST variables)
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* "module"_afterpost
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* "module"_content - the string return of this function contains our page body
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*
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* Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do
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* so within the module init and/or post functions and then invoke killme() to terminate
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* further processing.
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*/
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if (strlen($a->module)) {
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/**
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* We will always have a module name.
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* First see if we have an addon which is masquerading as a module.
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*/
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// Compatibility with the Android Diaspora client
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if ($a->module == 'stream') {
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goaway('network?f=&order=post');
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}
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if ($a->module == 'conversations') {
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goaway('message');
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}
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if ($a->module == 'commented') {
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goaway('network?f=&order=comment');
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}
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if ($a->module == 'liked') {
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goaway('network?f=&order=comment');
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}
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if ($a->module == 'activity') {
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goaway('network/?f=&conv=1');
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}
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if (($a->module == 'status_messages') && ($a->cmd == 'status_messages/new')) {
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goaway('bookmarklet');
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}
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if (($a->module == 'user') && ($a->cmd == 'user/edit')) {
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goaway('settings');
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}
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if (($a->module == 'tag_followings') && ($a->cmd == 'tag_followings/manage')) {
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goaway('search');
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}
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// Compatibility with the Firefox App
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if (($a->module == "users") && ($a->cmd == "users/sign_in")) {
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$a->module = "login";
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}
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$privateapps = Config::get('config', 'private_addons');
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if (is_array($a->addons) && in_array($a->module, $a->addons) && file_exists("addon/{$a->module}/{$a->module}.php")) {
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//Check if module is an app and if public access to apps is allowed or not
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if ((!local_user()) && Addon::isApp($a->module) && $privateapps === "1") {
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info(L10n::t("You must be logged in to use addons. "));
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} else {
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include_once "addon/{$a->module}/{$a->module}.php";
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if (function_exists($a->module . '_module')) {
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$a->module_loaded = true;
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}
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}
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}
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// Controller class routing
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if (! $a->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($a->module))) {
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$a->module_class = 'Friendica\\Module\\' . ucfirst($a->module);
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$a->module_loaded = true;
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}
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/**
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* If not, next look for a 'standard' program module in the 'mod' directory
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*/
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if (! $a->module_loaded && file_exists("mod/{$a->module}.php")) {
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include_once "mod/{$a->module}.php";
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$a->module_loaded = true;
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}
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/**
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* The URL provided does not resolve to a valid module.
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*
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* On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
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* We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
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* 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
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* this will often succeed and eventually do the right thing.
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*
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* Otherwise we are going to emit a 404 not found.
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*/
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if (! $a->module_loaded) {
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// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
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if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
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killme();
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}
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if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
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logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
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goaway(System::baseUrl() . $_SERVER['REQUEST_URI']);
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}
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logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
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header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . L10n::t('Not Found'));
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$tpl = get_markup_template("404.tpl");
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$a->page['content'] = replace_macros($tpl, [
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'$message' => L10n::t('Page not found.')
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]);
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}
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}
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/**
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* Load current theme info
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*/
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$theme_info_file = 'view/theme/' . $a->getCurrentTheme() . '/theme.php';
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if (file_exists($theme_info_file)) {
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require_once $theme_info_file;
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}
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/* initialise content region */
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if ($a->getMode()->isNormal()) {
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Addon::callHooks('page_content_top', $a->page['content']);
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}
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/**
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* Call module functions
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*/
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if ($a->module_loaded) {
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$a->page['page_title'] = $a->module;
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$placeholder = '';
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Addon::callHooks($a->module . '_mod_init', $placeholder);
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if ($a->module_class) {
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call_user_func([$a->module_class, 'init']);
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} else if (function_exists($a->module . '_init')) {
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$func = $a->module . '_init';
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$func($a);
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}
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// "rawContent" is especially meant for technical endpoints.
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// This endpoint doesn't need any theme initialization or other comparable stuff.
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if (!$a->error && $a->module_class) {
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call_user_func([$a->module_class, 'rawContent']);
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}
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if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_init')) {
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$func = str_replace('-', '_', $a->getCurrentTheme()) . '_init';
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$func($a);
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}
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if (! $a->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
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Addon::callHooks($a->module . '_mod_post', $_POST);
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if ($a->module_class) {
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call_user_func([$a->module_class, 'post']);
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} else if (function_exists($a->module . '_post')) {
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$func = $a->module . '_post';
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$func($a);
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}
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}
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if (! $a->error) {
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Addon::callHooks($a->module . '_mod_afterpost', $placeholder);
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if ($a->module_class) {
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call_user_func([$a->module_class, 'afterpost']);
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} else if (function_exists($a->module . '_afterpost')) {
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$func = $a->module . '_afterpost';
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$func($a);
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}
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}
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if (! $a->error) {
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$arr = ['content' => $a->page['content']];
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Addon::callHooks($a->module . '_mod_content', $arr);
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$a->page['content'] = $arr['content'];
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if ($a->module_class) {
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$arr = ['content' => call_user_func([$a->module_class, 'content'])];
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} else if (function_exists($a->module . '_content')) {
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$func = $a->module . '_content';
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$arr = ['content' => $func($a)];
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}
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Addon::callHooks($a->module . '_mod_aftercontent', $arr);
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$a->page['content'] .= $arr['content'];
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}
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if (function_exists(str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded')) {
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$func = str_replace('-', '_', $a->getCurrentTheme()) . '_content_loaded';
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$func($a);
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}
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}
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/*
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* Create the page head after setting the language
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* and getting any auth credentials.
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*
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* Moved init_pagehead() and init_page_end() to after
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* all the module functions have executed so that all
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* theme choices made by the modules can take effect.
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*/
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$a->initHead();
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/*
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* Build the page ending -- this is stuff that goes right before
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* the closing </body> tag
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*/
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$a->initFooter();
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/*
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* now that we've been through the module content, see if the page reported
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* a permission problem and if so, a 403 response would seem to be in order.
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*/
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if (stristr(implode("", $_SESSION['sysmsg']), L10n::t('Permission denied'))) {
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header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . L10n::t('Permission denied.'));
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}
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/*
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* Report anything which needs to be communicated in the notification area (before the main body)
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*/
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Addon::callHooks('page_end', $a->page['content']);
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/*
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* Add the navigation (menu) template
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*/
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if ($a->module != 'install' && $a->module != 'maintenance') {
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Nav::build($a);
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}
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/**
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* Build the page - now that we have all the components
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*/
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if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
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$doc = new DOMDocument();
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$target = new DOMDocument();
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$target->loadXML("<root></root>");
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$content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
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/// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
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@$doc->loadHTML($content);
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$xpath = new DOMXPath($doc);
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$list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
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foreach ($list as $item) {
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$item = $target->importNode($item, true);
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// And then append it to the target
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$target->documentElement->appendChild($item);
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}
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}
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if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
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header("Content-type: text/html; charset=utf-8");
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echo substr($target->saveHTML(), 6, -8);
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exit();
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}
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$page = $a->page;
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$profile = $a->profile;
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header("X-Friendica-Version: " . FRIENDICA_VERSION);
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header("Content-type: text/html; charset=utf-8");
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if (Config::get('system', 'hsts') && (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
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header("Strict-Transport-Security: max-age=31536000");
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}
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// Some security stuff
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header('X-Content-Type-Options: nosniff');
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header('X-XSS-Protection: 1; mode=block');
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header('X-Permitted-Cross-Domain-Policies: none');
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header('X-Frame-Options: sameorigin');
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// Things like embedded OSM maps don't work, when this is enabled
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// 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'");
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/*
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* We use $_GET["mode"] for special page templates. So we will check if we have
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* to load another page template than the default one.
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* The page templates are located in /view/php/ or in the theme directory.
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*/
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if (isset($_GET["mode"])) {
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$template = Theme::getPathForFile($_GET["mode"] . '.php');
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}
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// If there is no page template use the default page template
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if (empty($template)) {
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$template = Theme::getPathForFile("default.php");
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}
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/// @TODO Looks unsafe (remote-inclusion), is maybe not but Theme::getPathForFile() uses file_exists() but does not escape anything
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require_once $template;
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