friendica/index.php

519 lines
14 KiB
PHP

<?php
/**
*
* Friendica
*
*/
/**
*
* bootstrap the application
*
*/
require_once('boot.php');
require_once('object/BaseObject.php');
$a = new App;
BaseObject::set_app($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.
*
*/
$install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
@include(".htconfig.php");
/**
*
* Try to open the database;
*
*/
require_once("include/dba.php");
if(!$install) {
$db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
unset($db_host, $db_user, $db_pass, $db_data);
/**
* Load configs from db. Overwrite configs from .htconfig.php
*/
load_config('config');
load_config('system');
if ($a->max_processes_reached() OR $a->maxload_reached()) {
header($_SERVER["SERVER_PROTOCOL"].' 503 Service Temporarily Unavailable');
header('Retry-After: 120');
header('Refresh: 120; url='.$a->get_baseurl()."/".$a->query_string);
die("System is currently unavailable. Please try again later");
}
if (get_config('system','force_ssl') AND ($a->get_scheme() == "http") AND
(intval(get_config('system','ssl_policy')) == SSL_POLICY_FULL) AND
(substr($a->get_baseurl(), 0, 8) == "https://")) {
header("HTTP/1.1 302 Moved Temporarily");
header("Location: ".$a->get_baseurl()."/".$a->query_string);
exit();
}
require_once("include/session.php");
load_hooks();
call_hooks('init_1');
$maintenance = get_config('system', 'maintenance');
}
$lang = get_browser_language();
load_translation_table($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");
}
/**
* 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 didn't loaded user data yet, but we need user language
$r = q("SELECT language FROM user WHERE uid=%d", intval($_SESSION['uid']));
$_SESSION['language'] = $lang;
if (dbm::is_result($r)) $_SESSION['language'] = $r[0]['language'];
}
if((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {
$lang = $_SESSION['language'];
load_translation_table($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) == "") AND
strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
$_SESSION['my_url'] = $_GET['zrl'];
$a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is','',$a->query_string);
zrl_init($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: <' . $a->get_baseurl() . '/amcd>; rel="acct-mgmt";');
if(x($_COOKIE["Friendica"]) || (x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login'))
require("include/auth.php");
if(! x($_SESSION,'authenticated'))
header('X-Account-Management-Status: none');
/* set up page['htmlhead'] and page['end'] for the modules to use */
$a->page['htmlhead'] = '';
$a->page['end'] = '';
if(! x($_SESSION,'sysmsg'))
$_SESSION['sysmsg'] = array();
if(! x($_SESSION,'sysmsg_info'))
$_SESSION['sysmsg_info'] = array();
/*
* check_config() is responsible for running update scripts. These automatically
* update the DB schema whenever we push a new one out. It also checks to see if
* any plugins have been added or removed and reacts accordingly.
*/
// in install mode, any url loads install module
// but we need "view" module for stylesheet
if($install && $a->module!="view")
$a->module = 'install';
elseif($maintenance && $a->module!="view")
$a->module = 'maintenance';
else {
check_url($a);
check_db();
check_plugins($a);
}
nav_set_selected('nothing');
//Don't populate apps_menu if apps are private
$privateapps = get_config('config','private_addons');
if((local_user()) || (! $privateapps === "1"))
{
$arr = array('app_menu' => $a->apps);
call_hooks('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 a plugin 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") AND ($a->cmd == "users/sign_in"))
$a->module = "login";
$privateapps = get_config('config','private_addons');
if(is_array($a->plugins) && in_array($a->module,$a->plugins) && 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()) && plugin_is_app($a->module) && $privateapps === "1") {
info( t("You must be logged in to use addons. "));
}
else {
include_once("addon/{$a->module}/{$a->module}.php");
if(function_exists($a->module . '_module'))
$a->module_loaded = true;
}
}
/**
* 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 =' . $_SERVER['REQUEST_URI']);
goaway($a->get_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 ' . t('Not Found'));
$tpl = get_markup_template("404.tpl");
$a->page['content'] = replace_macros($tpl, array(
'$message' => 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 && !$maintenance)
call_hooks('page_content_top',$a->page['content']);
/**
* Call module functions
*/
if($a->module_loaded) {
$a->page['page_title'] = $a->module;
$placeholder = '';
if(function_exists($a->module . '_init')) {
call_hooks($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);
}
// elseif (x($a->theme_info,"extends") && file_exists("view/theme/".$a->theme_info["extends"]."/theme.php")) {
// require_once("view/theme/".$a->theme_info["extends"]."/theme.php");
// if(function_exists(str_replace('-','_',$a->theme_info["extends"]) . '_init')) {
// $func = str_replace('-','_',$a->theme_info["extends"]) . '_init';
// $func($a);
// }
// }
if(($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
&& (function_exists($a->module . '_post'))
&& (! x($_POST,'auth-params'))) {
call_hooks($a->module . '_mod_post', $_POST);
$func = $a->module . '_post';
$func($a);
}
if((! $a->error) && (function_exists($a->module . '_afterpost'))) {
call_hooks($a->module . '_mod_afterpost',$placeholder);
$func = $a->module . '_afterpost';
$func($a);
}
if((! $a->error) && (function_exists($a->module . '_content'))) {
$arr = array('content' => $a->page['content']);
call_hooks($a->module . '_mod_content', $arr);
$a->page['content'] = $arr['content'];
$func = $a->module . '_content';
$arr = array('content' => $func($a));
call_hooks($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']), t('Permission denied'))) {
header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . t('Permission denied.'));
}
/**
*
* Report anything which needs to be communicated in the notification area (before the main body)
*
*/
/*if(x($_SESSION,'sysmsg')) {
$a->page['content'] = "<div id=\"sysmsg\" class=\"error-message\">{$_SESSION['sysmsg']}</div>\r\n"
. ((x($a->page,'content')) ? $a->page['content'] : '');
$_SESSION['sysmsg']="";
unset($_SESSION['sysmsg']);
}
if(x($_SESSION,'sysmsg_info')) {
$a->page['content'] = "<div id=\"sysmsg_info\" class=\"info-message\">{$_SESSION['sysmsg_info']}</div>\r\n"
. ((x($a->page,'content')) ? $a->page['content'] : '');
$_SESSION['sysmsg_info']="";
unset($_SESSION['sysmsg_info']);
}*/
call_hooks('page_end', $a->page['content']);
/**
*
* Add the navigation (menu) template
*
*/
if($a->module != 'install' && $a->module != 'maintenance') {
nav($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();
}
$a->page['footer'] = replace_macros(get_markup_template("toggle_mobile_footer.tpl"), array(
'$toggle_link' => $link,
'$toggle_text' => 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"]) AND (($_GET["mode"] == "raw") OR ($_GET["mode"] == "minimal"))) {
$doc = new DOMDocument();
$target = new DOMDocument();
$target->loadXML("<root></root>");
$content = mb_convert_encoding($a->page["content"], 'HTML-ENTITIES', "UTF-8");
@$doc->loadHTML($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($_GET["mode"]) AND ($_GET["mode"] == "raw")) {
header("Content-type: text/html; charset=utf-8");
echo substr($target->saveHTML(), 6, -8);
session_write_close();
exit;
}
$page = $a->page;
$profile = $a->profile;
header("X-Friendica-Version: ".FRIENDICA_VERSION);
header("Content-type: text/html; charset=utf-8");
// 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"])) {
$template = theme_include($_GET["mode"].'.php');
}
// If there is no page template use the default page template
if(!$template) {
$template = theme_include("default.php");
}
require_once($template);
session_write_close();
exit;