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
namespace Friendica\App;
use Friendica\App;
use Friendica\BaseObject;
use Friendica\Core;
use Friendica\LegacyModule;
use Friendica\Module\Home;
use Friendica\Module\PageNotFound;
use Psr\Log\LoggerInterface;
/**
* Holds the common context of the current, loaded module
*/
class Module
{
const DEFAULT = 'home';
const DEFAULT_CLASS = Home::class;
/**
* A list of modules, which are backend methods
*
* @var array
*/
const BACKEND_MODULES = [
'_well_known',
'api',
'dfrn_notify',
'feed',
'fetch',
'followers',
'following',
'hcard',
'hostxrd',
'inbox',
'manifest',
'nodeinfo',
'noscrape',
'objects',
'outbox',
'poco',
'post',
'proxy',
'pubsub',
'pubsubhubbub',
'receive',
'rsd_xml',
'salmon',
'statistics_json',
'xrd',
];
/**
* @var string The module name
*/
private $module;
/**
* @var BaseObject The module class
*/
private $module_class;
/**
* @var bool true, if the module is a backend module
*/
private $isBackend;
/**
* @var bool true, if the loaded addon is private, so we have to print out not allowed
*/
private $printNotAllowedAddon;
/**
* @return string
*/
public function getName()
{
return $this->module;
}
/**
* @return string The base class name
*/
public function getClassName()
{
return $this->module_class;
}
/**
* @return bool True, if the current module is a backend module
* @see Module::BACKEND_MODULES for a list
*/
public function isBackend()
{
return $this->isBackend;
}
public function __construct(string $module = self::DEFAULT, string $moduleClass = self::DEFAULT_CLASS, bool $isBackend = false, bool $printNotAllowedAddon = false)
{
$this->module = $module;
$this->module_class = $moduleClass;
$this->isBackend = $isBackend;
$this->printNotAllowedAddon = $printNotAllowedAddon;
}
/**
* Determines the current module based on the App arguments and the server variable
*
* @param Arguments $args The Friendica arguments
*
* @return Module The module with the determined module
*/
public function determineModule(Arguments $args)
{
if ($args->getArgc() > 0) {
$module = str_replace('.', '_', $args->get(0));
$module = str_replace('-', '_', $module);
} else {
$module = self::DEFAULT;
}
// Compatibility with the Firefox App
if (($module == "users") && ($args->getCommand() == "users/sign_in")) {
$module = "login";
}
$isBackend = in_array($module, Module::BACKEND_MODULES);;
return new Module($module, $this->module_class, $isBackend, $this->printNotAllowedAddon);
}
/**
* Determine the class of the current module
*
* @param Arguments $args The Friendica execution arguments
* @param Router $router The Friendica routing instance
* @param Core\Config\Configuration $config The Friendica Configuration
*
* @return Module The determined module of this call
*
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public function determineClass(Arguments $args, Router $router, Core\Config\Configuration $config)
{
$printNotAllowedAddon = false;
/**
* ROUTING
*
* From the request URL, routing consists of obtaining the name of a BaseModule-extending class of which the
* post() and/or content() static methods can be respectively called to produce a data change or an output.
**/
$module_class = $router->getModuleClass($args->getCommand());
// Then we try addon-provided modules that we wrap in the LegacyModule class
if (!$module_class && Core\Addon::isEnabled($this->module) && file_exists("addon/{$this->module}/{$this->module}.php")) {
//Check if module is an app and if public access to apps is allowed or not
$privateapps = $config->get('config', 'private_addons', false);
if ((!local_user()) && Core\Hook::isAddonApp($this->module) && $privateapps) {
$printNotAllowedAddon = true;
} else {
include_once "addon/{$this->module}/{$this->module}.php";
if (function_exists($this->module . '_module')) {
LegacyModule::setModuleFile("addon/{$this->module}/{$this->module}.php");
$module_class = LegacyModule::class;
}
}
}
/* Finally, we look for a 'standard' program module in the 'mod' directory
* We emulate a Module class through the LegacyModule class
*/
if (!$module_class && file_exists("mod/{$this->module}.php")) {
LegacyModule::setModuleFile("mod/{$this->module}.php");
$module_class = LegacyModule::class;
}
$module_class = !isset($module_class) ? PageNotFound::class : $module_class;
return new Module($this->module, $module_class, $this->isBackend, $printNotAllowedAddon);
}
/**
* Run the determined module class and calls all hooks applied to
*
* @param Core\L10n\L10n $l10n The L10n instance
* @param App $app The whole Friendica app (for method arguments)
* @param LoggerInterface $logger The Friendica logger
* @param string $currentTheme The chosen theme
* @param array $server The $_SERVER variable
* @param array $post The $_POST variables
*
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public function run(Core\L10n\L10n $l10n, App $app, LoggerInterface $logger, string $currentTheme, array $server, array $post)
{
if ($this->printNotAllowedAddon) {
info($l10n->t("You must be logged in to use addons. "));
}
/* The URL provided does not resolve to a valid module.
*
* On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
* We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
* we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
* this will often succeed and eventually do the right thing.
*
* Otherwise we are going to emit a 404 not found.
*/
if ($this->module_class === PageNotFound::class) {
$queryString = $server['QUERY_STRING'];
// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
if (!empty($queryString) && preg_match('/{[0-9]}/', $queryString) !== 0) {
exit();
}
if (!empty($queryString) && ($queryString === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
$logger->info('index.php: dreamhost_error_hack invoked.', ['Original URI' => $server['REQUEST_URI']]);
$app->internalRedirect($server['REQUEST_URI']);
}
$logger->debug('index.php: page not found.', ['request_uri' => $server['REQUEST_URI'], 'address' => $server['REMOTE_ADDR'], 'query' => $server['QUERY_STRING']]);
}
$placeholder = '';
Core\Hook::callAll($this->module . '_mod_init', $placeholder);
call_user_func([$this->module_class, 'init']);
// "rawContent" is especially meant for technical endpoints.
// This endpoint doesn't need any theme initialization or other comparable stuff.
call_user_func([$this->module_class, 'rawContent']);
// Load current theme info after module has been initialized as theme could have been set in module
$theme_info_file = 'view/theme/' . $currentTheme . '/theme.php';
if (file_exists($theme_info_file)) {
require_once $theme_info_file;
}
if (function_exists(str_replace('-', '_', $currentTheme) . '_init')) {
$func = str_replace('-', '_', $currentTheme) . '_init';
$func($app);
}
if ($server['REQUEST_METHOD'] === 'POST') {
Core\Hook::callAll($this->module . '_mod_post', $post);
call_user_func([$this->module_class, 'post']);
}
Core\Hook::callAll($this->module . '_mod_afterpost', $placeholder);
call_user_func([$this->module_class, 'afterpost']);
}
}