<?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']; } } } }