4 * Description: Parse Markdown code when creating new items
6 * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
9 use Friendica\Core\Hook;
10 use Friendica\Content\Text\Markdown;
11 use Friendica\Core\Renderer;
12 use Friendica\Core\Session;
15 function markdown_install() {
16 Hook::register('post_local_start', __FILE__, 'markdown_post_local_start');
17 Hook::register('addon_settings', __FILE__, 'markdown_addon_settings');
18 Hook::register('addon_settings_post', __FILE__, 'markdown_addon_settings_post');
21 function markdown_addon_settings(App $a, array &$data)
23 if (!Session::getLocalUser()) {
27 $enabled = intval(DI::pConfig()->get(Session::getLocalUser(), 'markdown', 'enabled'));
29 $t = Renderer::getMarkupTemplate('settings.tpl', 'addon/markdown/');
30 $html = Renderer::replaceMacros($t, [
31 '$enabled' => ['enabled', DI::l10n()->t('Enable Markdown parsing'), $enabled, DI::l10n()->t('If enabled, adds Markdown support to the Compose Post form.')],
35 'addon' => 'markdown',
36 'title' => DI::l10n()->t('Markdown Settings'),
41 function markdown_addon_settings_post(App $a, array &$b)
43 if (!Session::getLocalUser() || empty($_POST['markdown-submit'])) {
47 DI::pConfig()->set(Session::getLocalUser(), 'markdown', 'enabled', intval($_POST['enabled']));
50 function markdown_post_local_start(App $a, &$request) {
51 if (empty($request['body']) || !DI::pConfig()->get(Session::getLocalUser(), 'markdown', 'enabled')) {
55 // Escape elements that shouldn't be parsed
56 $request['body'] = \Friendica\Content\Text\BBCode::performWithEscapedTags(
58 ['code', 'noparse', 'nobb', 'pre', 'share', 'url', 'img', 'bookmark',
59 'audio', 'video', 'youtube', 'vimeo', 'attachment', 'iframe', 'map', 'mail'],
61 // Escape mentions which username can contain Markdown-like characters
62 // See https://github.com/friendica/friendica/issues/9486
63 return \Friendica\Util\Strings::performWithEscapedBlocks($body, '/[@!][^@\s]+@[^\s]+\w/', function ($text) {
64 // Markdown accepts literal HTML but we do not in post body, so we need to escape left chevrons
65 // (right chevrons are used for quoting in Markdown)
66 // See https://github.com/friendica/friendica/issues/10634
67 $text = strtr($text, ['<' => '<']);
69 return Markdown::toBBCode($text);