determine_help_language(); if (empty($_REQUEST['search']) && argc() === 1) { goaway("/help/about/about"); killme(); } } /** * Process get request for the help module. * * Loads the correct help file from the `doc/` directory, and passes it to * the help template in `view/tpl/help.tpl`. * * If the requested help topic does not exist for the currently selected * language, a 404 status is returned instead. * * This function currently also handles search and serving static assets * that may be used by the help files. * * @return string The rendered help page or a 404 page if help topic was * not found. */ public function get() { nav_set_selected('Help'); $o = ''; if(isset($_REQUEST['search']) && $_REQUEST['search']) { $o .= '
'; $o .= '
'; $o .= '

' . t('Documentation Search') . ' - ' . htmlspecialchars($_REQUEST['search']) . '

'; $o .= '
'; $o .= '
'; require_once('include/help.php'); $r = search_doc_files($_REQUEST['search']); if($r) { $o .= ''; $o .= '
'; $o .= '
'; } return $o; } if(argc() > 2 && argv(argc()-2) === 'assets') { $path = ''; for($x = 1; $x < argc(); $x ++) { if(strlen($path)) $path .= '/'; $path .= argv($x); } $realpath = 'doc/' . $path; //Set the content-type header as appropriate $imageInfo = getimagesize($realpath); switch ($imageInfo[2]) { case IMAGETYPE_JPEG: header("Content-Type: image/jpeg"); break; case IMAGETYPE_GIF: header("Content-Type: image/gif"); break; case IMAGETYPE_PNG: header("Content-Type: image/png"); break; case IMAGETYPE_WEBP: header("Content-Type: image/webp"); break; default: break; } header("Content-Length: " . filesize($realpath)); // dump the picture and stop the script readfile($realpath); killme(); } // // The args to the module will be along this pattern: // // help/// // // Where `` is the language which we want to fetch the topic. This // element is optional, but will be used to override the browser language // preference if it exists. // // There may be zero or more `` elements. If there are any // present, the first subdir will be used as the slug to find the // heading of the help page. // // The `` should be the name of a file within the given language // and subdirectory tree under the `doc/` directory of the site file // system. The topic is given _without_ the file extension, which will be // determined by the module. // // The valid file extensions for help topic are: // // - `.md` for markdown formatted source files. // - `.bb` for bbcode formatted source files. // - `.html` for help topics in html format. // // Strip away the module name from the args $args = array_slice(\App::$argv, 1); // Remove language if necessary // // The language was determined during pre-request processing in the // `init` function. if ($this->lang['from_url']) { array_shift($args); } if (empty($args)) { goaway("/help/about/about"); } // Keep the first remaining arg as the heading slug $this->heading_slug = $args[0]; // Locate the file for the topic in the doc directory $this->find_help_file(implode('/', $args), $this->lang['language']); $this->set_page_title(); if (empty($this->file_name)) { header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found')); $tpl = get_markup_template("404.tpl"); return replace_macros($tpl, array( '$message' => t('Page not found.') )); } else { $tpl = get_markup_template('help.tpl'); return replace_macros($tpl, [ '$module' => $this ]); } } public function render_content(): string { return $this->render_help_file($this->file_name, $this->file_type); } public function render_help_file(string $file_name, string $file_type): string { $raw_text = file_get_contents($file_name); switch ($file_type) { case 'md': // We need to escape the `#include` statements in the original file, // to be sure it's not rendered as a heading by markdown. $raw_text = preg_replace('/#include/ism', '%%include', $raw_text); $content = MarkdownExtra::defaultTransform($raw_text); $content = preg_replace('/%%include/ism', '#include', $content); break; case 'bb': $content = zidify_links(bbcode($raw_text)); break; case 'html': $content = parseIdentityAwareHTML($raw_text); break; } // Replace includes with the contents of the included file $content = preg_replace_callback( "/#include (.*?)\;/ism", function ($matches) { $parts = explode('.', $matches[1]); $sub_file_type = array_pop($parts); $included_content = $this->render_help_file($matches[1], $sub_file_type); return str_replace($matches[0], $included_content, $matches[0]); }, $content ); return translate_projectname($content); } public function get_page_title(): string { $title = t('$Projectname Documentation'); $heading = $this->get_heading(); if (! empty($heading)) { $title .= ': ' . $heading; } return $title; } public function get_toc_heading(): string { return t('Contents'); } private function get_heading(): string { $headings = [ 'about' => t('About'), 'member' => t('Members'), 'admin' => t('Administrators'), 'developer' => t('Developers'), 'tutorials' => t('Tutorials') ]; if(array_key_exists($this->heading_slug, $headings)) { return $headings[$this->heading_slug]; } else { return ''; } } /** * Set the page title to an unslugified version of the file name. * * @Note This modifies the global `App::$page['title']` property. */ private function set_page_title(): void { $title = basename($this->file_name, ".{$this->file_type}"); \App::$page['title'] = t('Help:') . ' ' . ucwords(str_replace(['-', '_'],' ',notags($title))); } }