<?php
namespace Zotlabs\Web;
/**
*
* We have already parsed the server path into App::$argc and App::$argv
*
* App::$argv[0] is our module name. Let's call it 'foo'. We will load the
* Zotlabs/Module/Foo.php (object) or file mod/foo.php (procedural)
* and use it for handling our URL request to 'https://ourgreatwebsite.something/foo' .
* The module file contains a few functions that we call in various circumstances
* and in the following order:
* @code{.php}
* Object:
* class Foo extends \Zotlabs\Web\Controller {
* function init() { init function }
* function post() { post function }
* function get() { normal page function }
* }
*
* Procedual interface:
* foo_init()
* foo_post() (only called if there are $_POST variables)
* foo_content() - the string return of this function contains our page body
* @endcode
* 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.
*/
class Router {
private $modname = '';
private $controller = null;
/**
* @brief Router constructor
*
* @param[in,out] App &$a
* @throws Exception module not found
*/
function __construct(&$a) {
$module = \App::$module;
$modname = "Zotlabs\\Module\\" . ucfirst($module);
if(strlen($module)) {
/*
* We will always have a module name.
* First see if we have a plugin which is masquerading as a module.
*/
if(is_array(\App::$plugins) && in_array($module,\App::$plugins) && file_exists("addon/{$module}/{$module}.php")) {
include_once("addon/{$module}/{$module}.php");
if(class_exists($modname)) {
$this->controller = new $modname;
\App::$module_loaded = true;
}
elseif(function_exists($module . '_module')) {
\App::$module_loaded = true;
}
}
/*
* If the site has a custom module to over-ride the standard module, use it.
* Otherwise, look for the standard program module
*/
if(! (\App::$module_loaded)) {
try {
$filename = 'Zotlabs/SiteModule/'. ucfirst($module). '.php';
if(file_exists($filename)) {
// This won't be picked up by the autoloader, so load it explicitly
require_once($filename);
$this->controller = new $modname;
\App::$module_loaded = true;
}
else {
$filename = 'Zotlabs/Module/'. ucfirst($module). '.php';
if(file_exists($filename)) {
$this->controller = new $modname;
\App::$module_loaded = true;
}
}
if(! \App::$module_loaded)
throw new \Exception('Module not found');
}
catch(\Exception $e) {
if(file_exists("mod/site/{$module}.php")) {
include_once("mod/site/{$module}.php");
\App::$module_loaded = true;
}
elseif(file_exists("mod/{$module}.php")) {
include_once("mod/{$module}.php");
\App::$module_loaded = true;
}
}
}
/*
* This provides a place for plugins to register module handlers which don't otherwise exist
* on the system, or to completely over-ride an existing module.
* If the plugin sets 'installed' to true we won't throw a 404 error for the specified module even if
* there is no specific module file or matching plugin name.
* The plugin should catch at least one of the module hooks for this URL.
*/
$x = array('module' => $module, 'installed' => \App::$module_loaded, 'controller' => $this->controller);
call_hooks('module_loaded', $x);
if($x['installed']) {
\App::$module_loaded = true;
$this->controller = $x['controller'];
}
/*
* The URL provided does not resolve to a valid module.
*/
if(! (\App::$module_loaded)) {
// undo the setting of a letsencrypt acme-challenge rewrite rule
// which blocks access to our .well-known routes.
// Also provide a config setting for sites that have a legitimate need
// for a custom .htaccess in the .well-known directory; but they should
// make the file read-only so letsencrypt doesn't modify it
if(strpos($_SERVER['REQUEST_URI'],'/.well-known/') === 0) {
if(file_exists('.well-known/.htaccess') && get_config('system','fix_apache_acme',true)) {
rename('.well-known/.htaccess','.well-known/.htaccess.old');
}
}
$x = [
'module' => $module,
'installed' => \App::$module_loaded,
'controller' => $this->controller
];
call_hooks('page_not_found',$x);
// 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]}/', $_SERVER['QUERY_STRING']) !== 0) {
killme();
}
if(get_config('system','log_404',true)) {
logger("Module {$module} not found.", LOGGER_DEBUG, LOG_WARNING);
logger('index.php: page not found: ' . $_SERVER['REQUEST_URI']
. ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: '
. $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
}
header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
$tpl = get_markup_template('404.tpl');
\App::$page['content'] = replace_macros($tpl, array(
'$message' => t('Page not found.')
));
// pretend this is a module so it will initialise the theme
\App::$module = '404';
\App::$module_loaded = true;
\App::$error = true;
}
}
}
/**
* @brief
*
* @param[in,out] App &$a
*/
function Dispatch(&$a) {
/**
* Call module functions
*/
if(\App::$module_loaded) {
if (( \App::$module === 'channel' ) && argc() > 1) {
\App::$channel_links = [
[
'rel' => 'lrdd',
'type' => 'application/xrd+xml',
'url' => z_root() . '/xrd?f=&uri=acct%3A' . argv(1) . '%40' . \App::get_hostname()
],
[
'rel' => 'jrd',
'type' => 'application/jrd+json',
'url' => z_root() . '/.well-known/webfinger?f=&resource=acct%3A' . argv(1) . '%40' . \App::get_hostname()
],
];
$x = [ 'channel_address' => argv(1), 'channel_links' => \App::$channel_links ];
call_hooks('channel_links', $x );
\App::$channel_links = $x['channel_links'];
header('Link: ' . \App::get_channel_links());
}
\App::$page['page_title'] = \App::$module;
$placeholder = '';
/*
* No theme has been specified when calling the module_init functions
* For this reason, please restrict the use of templates to those which
* do not provide any presentation details - as themes will not be able
* to over-ride them.
*/
$arr = array('init' => true, 'replace' => false);
call_hooks(\App::$module . '_mod_init', $arr);
if(! $arr['replace']) {
if($this->controller && method_exists($this->controller,'init')) {
$this->controller->init();
}
elseif(function_exists(\App::$module . '_init')) {
$func = \App::$module . '_init';
$func($a);
}
}
/*
* Do all theme initialisation here before calling any additional module functions.
* The module_init function may have changed the theme.
* Additionally any page with a Comanche template may alter the theme.
* So we'll check for those now.
*/
/*
* In case a page has overloaded a module, see if we already have a layout defined
* otherwise, if a PDL file exists for this module, use it
* The member may have also created a customised PDL that's stored in the config
*/
load_pdl();
/*
* load current theme info
*/
$current_theme = \Zotlabs\Render\Theme::current();
$theme_info_file = 'view/theme/' . $current_theme[0] . '/php/theme.php';
if (file_exists($theme_info_file)){
require_once($theme_info_file);
}
if(function_exists(str_replace('-', '_', $current_theme[0]) . '_init')) {
$func = str_replace('-', '_', $current_theme[0]) . '_init';
$func($a);
}
elseif (x(\App::$theme_info, 'extends') && file_exists('view/theme/' . \App::$theme_info['extends'] . '/php/theme.php')) {
require_once('view/theme/' . \App::$theme_info['extends'] . '/php/theme.php');
if(function_exists(str_replace('-', '_', \App::$theme_info['extends']) . '_init')) {
$func = str_replace('-', '_', \App::$theme_info['extends']) . '_init';
$func($a);
}
}
if(($_SERVER['REQUEST_METHOD'] === 'POST') && (! \App::$error) && (! x($_POST, 'auth-params'))) {
call_hooks(\App::$module . '_mod_post', $_POST);
if($this->controller && method_exists($this->controller,'post')) {
$this->controller->post();
}
elseif(function_exists(\App::$module . '_post')) {
$func = \App::$module . '_post';
$func($a);
}
}
if(! \App::$error) {
$arr = array('content' => \App::$page['content'], 'replace' => false);
call_hooks(\App::$module . '_mod_content', $arr);
\App::$page['content'] = $arr['content'];
if(! $arr['replace']) {
if($this->controller && method_exists($this->controller,'get')) {
$arr = array('content' => $this->controller->get());
}
elseif(function_exists(\App::$module . '_content')) {
$func = \App::$module . '_content';
$arr = array('content' => $func($a));
}
}
call_hooks(\App::$module . '_mod_aftercontent', $arr);
\App::$page['content'] .= $arr['content'];
}
}
}
}
