524 lines
15 KiB
PHP
524 lines
15 KiB
PHP
<?php
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/**
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*
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* Friendica
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*
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*/
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/**
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*
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* bootstrap the application
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*
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*/
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use Friendica\App;
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use Friendica\Core\System;
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use Friendica\Core\Config;
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use Friendica\Core\Worker;
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use Friendica\Database\DBM;
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require_once 'boot.php';
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require_once 'object/BaseObject.php';
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if (empty($a)) {
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$a = new App(__DIR__);
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}
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BaseObject::set_app($a);
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// We assume that the index.php is called by a frontend process
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// The value is set to "true" by default in boot.php
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$a->backend = false;
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/**
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*
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* Load the configuration file which contains our DB credentials.
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* Ignore errors. If the file doesn't exist or is empty, we are running in
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* installation mode.
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*
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*/
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$install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
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// Only load config if found, don't surpress errors
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if (!$install) {
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include ".htconfig.php";
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}
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/**
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*
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* Try to open the database;
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*
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*/
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require_once "include/dba.php";
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if (!$install) {
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dba::connect($db_host, $db_user, $db_pass, $db_data, $install);
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unset($db_host, $db_user, $db_pass, $db_data);
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/**
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* Load configs from db. Overwrite configs from .htconfig.php
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*/
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Config::load();
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if ($a->max_processes_reached() || $a->maxload_reached()) {
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header($_SERVER["SERVER_PROTOCOL"] . ' 503 Service Temporarily Unavailable');
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header('Retry-After: 120');
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header('Refresh: 120; url=' . System::baseUrl() . "/" . $a->query_string);
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die("System is currently unavailable. Please try again later");
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}
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if (Config::get('system', 'force_ssl') && ($a->get_scheme() == "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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header("HTTP/1.1 302 Moved Temporarily");
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header("Location: " . System::baseUrl() . "/" . $a->query_string);
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exit();
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}
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require_once 'include/session.php';
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load_hooks();
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call_hooks('init_1');
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$maintenance = Config::get('system', 'maintenance');
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}
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$lang = get_browser_language();
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load_translation_table($lang);
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/**
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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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*/
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// Exclude the backend processes from the session management
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if (!$a->is_backend()) {
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$stamp1 = microtime(true);
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session_start();
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$a->save_timestamp($stamp1, "parser");
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} else {
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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 (x($_SESSION,'authenticated') && !x($_SESSION,'language')) {
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// we didn't loaded user data yet, but we need user language
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$r = dba::select('user', array('language'), array('uid' => $_SESSION['uid']), array('limit' => 1));
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$_SESSION['language'] = $lang;
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if (DBM::is_result($r)) {
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$_SESSION['language'] = $r['language'];
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}
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}
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if ((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {
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$lang = $_SESSION['language'];
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load_translation_table($lang);
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}
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if ((x($_GET,'zrl')) && (!$install && !$maintenance)) {
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// Only continue when the given profile link seems valid
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// Valid profile links contain a path with "/profile/" and no query parameters
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if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
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strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
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$_SESSION['my_url'] = $_GET['zrl'];
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$a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is','',$a->query_string);
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zrl_init($a);
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} else {
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// Someone came with an invalid parameter, maybe as a DDoS attempt
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// We simply stop processing here
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logger("Invalid ZRL parameter ".$_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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killme();
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}
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}
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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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*/
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// header('Link: <' . System::baseUrl() . '/amcd>; rel="acct-mgmt";');
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if (x($_COOKIE["Friendica"]) || (x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login')) {
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require("include/auth.php");
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}
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if (! x($_SESSION,'authenticated')) {
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header('X-Account-Management-Status: none');
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}
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/* set up page['htmlhead'] and page['end'] for the modules to use */
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$a->page['htmlhead'] = '';
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$a->page['end'] = '';
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if (! x($_SESSION,'sysmsg')) {
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$_SESSION['sysmsg'] = array();
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}
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if (! x($_SESSION,'sysmsg_info')) {
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$_SESSION['sysmsg_info'] = array();
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}
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// Array for informations about last received items
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if (! x($_SESSION,'last_updated')) {
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$_SESSION['last_updated'] = array();
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}
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/*
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* check_config() is responsible for running update scripts. These automatically
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* update the DB schema whenever we push a new one out. It also checks to see if
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* any plugins have been added or removed and reacts accordingly.
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*/
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// in install mode, any url loads install module
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// but we need "view" module for stylesheet
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if ($install && $a->module!="view") {
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$a->module = 'install';
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} elseif ($maintenance && $a->module!="view") {
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$a->module = 'maintenance';
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} else {
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check_url($a);
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check_db(false);
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check_plugins($a);
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}
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nav_set_selected('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 = array('app_menu' => $a->apps);
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call_hooks('app_menu', $arr);
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$a->apps = $arr['app_menu'];
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}
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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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*
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* We will always have a module name.
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* First see if we have a plugin which is masquerading as a module.
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*
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*/
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// Compatibility with the Android Diaspora client
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if ($a->module == "stream") {
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$a->module = "network";
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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($a->plugins) && in_array($a->module,$a->plugins) && file_exists("addon/{$a->module}/{$a->module}.php")) {
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//Check if module is an app and if public access to apps is allowed or not
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if ((!local_user()) && plugin_is_app($a->module) && $privateapps === "1") {
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info( t("You must be logged in to use addons. "));
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} else {
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include_once("addon/{$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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/**
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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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*
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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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*/
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if (! $a->module_loaded) {
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// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
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if ((x($_SERVER,'QUERY_STRING')) && preg_match('/{[0-9]}/',$_SERVER['QUERY_STRING']) !== 0) {
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killme();
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}
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if ((x($_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 ' . t('Not Found'));
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$tpl = get_markup_template("404.tpl");
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$a->page['content'] = replace_macros($tpl, array(
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'$message' => 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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$theme_info_file = "view/theme/".current_theme()."/theme.php";
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if (file_exists($theme_info_file)){
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require_once($theme_info_file);
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}
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/* initialise content region */
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if (! x($a->page,'content')) {
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$a->page['content'] = '';
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}
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if (!$install && !$maintenance) {
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call_hooks('page_content_top',$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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if (function_exists($a->module . '_init')) {
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call_hooks($a->module . '_mod_init', $placeholder);
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$func = $a->module . '_init';
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$func($a);
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}
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if (function_exists(str_replace('-','_',current_theme()) . '_init')) {
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$func = str_replace('-','_',current_theme()) . '_init';
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$func($a);
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}
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if (($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
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&& (function_exists($a->module . '_post'))
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&& (! x($_POST,'auth-params'))) {
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call_hooks($a->module . '_mod_post', $_POST);
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$func = $a->module . '_post';
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$func($a);
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}
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if ((! $a->error) && (function_exists($a->module . '_afterpost'))) {
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call_hooks($a->module . '_mod_afterpost',$placeholder);
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$func = $a->module . '_afterpost';
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$func($a);
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}
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if ((! $a->error) && (function_exists($a->module . '_content'))) {
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$arr = array('content' => $a->page['content']);
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call_hooks($a->module . '_mod_content', $arr);
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$a->page['content'] = $arr['content'];
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$func = $a->module . '_content';
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$arr = array('content' => $func($a));
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call_hooks($a->module . '_mod_aftercontent', $arr);
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$a->page['content'] .= $arr['content'];
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}
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if (function_exists(str_replace('-','_',current_theme()) . '_content_loaded')) {
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$func = str_replace('-','_',current_theme()) . '_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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$a->init_pagehead();
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/*
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* Build the page ending -- this is stuff that goes right before
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* the closing </body> tag
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*/
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$a->init_page_end();
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// If you're just visiting, let javascript take you home
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if (x($_SESSION, 'visitor_home')) {
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$homebase = $_SESSION['visitor_home'];
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} elseif (local_user()) {
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$homebase = 'profile/' . $a->user['nickname'];
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}
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if (isset($homebase)) {
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$a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
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}
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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("", $_SESSION['sysmsg']), t('Permission denied'))) {
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header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . 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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call_hooks('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' && $a->module != 'maintenance') {
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nav($a);
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}
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/*
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* Add a "toggle mobile" link if we're using a mobile device
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*/
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if ($a->is_mobile || $a->is_tablet) {
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if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
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$link = 'toggle_mobile?address=' . curPageURL();
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} else {
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$link = 'toggle_mobile?off=1&address=' . curPageURL();
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}
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$a->page['footer'] = replace_macros(get_markup_template("toggle_mobile_footer.tpl"), array(
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'$toggle_link' => $link,
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'$toggle_text' => t('toggle mobile')
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));
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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 (!$a->theme['stylesheet']) {
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$stylesheet = current_theme_url();
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} else {
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$stylesheet = $a->theme['stylesheet'];
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}
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$a->page['htmlhead'] = str_replace('{{$stylesheet}}',$stylesheet,$a->page['htmlhead']);
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//$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => $stylesheet));
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if (isset($_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($target->saveHTML(), 6, -8);
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killme();
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}
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$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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$template = theme_include($_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_include("default.php");
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}
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/// @TODO Looks unsafe (remote-inclusion), is maybe not but theme_include() uses file_exists() but does not escape anything
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require_once $template;
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killme();
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