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