diff options
Diffstat (limited to 'Zotlabs/Module/Help.php')
| -rw-r--r-- | Zotlabs/Module/Help.php | 191 |
1 files changed, 174 insertions, 17 deletions
diff --git a/Zotlabs/Module/Help.php b/Zotlabs/Module/Help.php index 55ac80842..00946368f 100644 --- a/Zotlabs/Module/Help.php +++ b/Zotlabs/Module/Help.php @@ -1,7 +1,7 @@ <?php namespace Zotlabs\Module; -require_once('include/help.php'); +use Michelf\MarkdownExtra; /** * You can create local site resources in doc/Site.md and either link to doc/Home.md for the standard resources @@ -14,7 +14,50 @@ require_once('include/help.php'); */ class Help extends \Zotlabs\Web\Controller { - function get() { + use \Zotlabs\Lib\Traits\HelpHelper; + + private string $heading_slug = ''; + + /** + * Associative array containing the detected language. + */ + public array $lang = [ + 'language' => 'en', //! Detected language, 2-letter ISO 639-1 code ("en") + 'from_url' => false, //! true if language from URL overrides browser default + ]; + + /** + * Pre-check before processing request. + * + * Determine language requested, and ensure that a topic was requested. + * If no topic was requested, redirect to the about page, and abort + * processing. + */ + public function init() { + $this->determine_help_language(); + + if (argc() === 1) { + goaway("/help/{$this->lang['language']}/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 = ''; @@ -81,6 +124,119 @@ class Help extends \Zotlabs\Web\Controller { killme(); } + // + // The args to the module will be along this pattern: + // + // help/<lang>/<subdir..>/<topic> + // + // Where `<lang>` 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 `<subdir...>` elements. If there are any + // present, the first subdir will be used as the slug to find the + // heading of the help page. + // + // The `<topic>` 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); + } + + // 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) { + $sub_file_type = array_pop(explode('.', $matches[1])); + $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'), @@ -89,21 +245,22 @@ class Help extends \Zotlabs\Web\Controller { 'tutorials' => t('Tutorials') ]; - $heading = ''; - if(array_key_exists(argv(1), $headings)) - $heading = $headings[argv(1)]; - - $content = get_help_content(); - - $language = determine_help_language()['language']; - - return replace_macros(get_markup_template('help.tpl'), array( - '$title' => t('$Projectname Documentation'), - '$tocHeading' => t('Contents'), - '$content' => $content, - '$heading' => $heading, - '$language' => $language - )); + if(array_key_exists($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))); + } } |