<?php use Engelsystem\Http\Exceptions\HttpForbidden; use Engelsystem\Models\News; use Illuminate\Database\Eloquent\Collection; /** * Publically available page to feed the news to feed readers */ function user_atom() { $request = request(); $user = auth()->apiUser('key'); if ( !$request->has('key') || !preg_match('/^[\da-f]{32}$/', $request->input('key')) || empty($user) ) { throw new HttpForbidden('Missing or invalid key', ['content-type' => 'text/text']); } if (!auth()->can('atom')) { throw new HttpForbidden('Not allowed', ['content-type' => 'text/text']); } $news = $request->has('meetings') ? News::whereIsMeeting((bool)$request->get('meetings', false)) : News::query(); $news ->limit((int)config('display_news')) ->orderByDesc('updated_at'); $output = make_atom_entries_from_news($news->get()); header('Content-Type: application/atom+xml; charset=utf-8'); header('Content-Length: ' . strlen($output)); raw_output($output); } /** * @param News[]|Collection $news_entries * @return string */ function make_atom_entries_from_news($news_entries) { $request = app('request'); $updatedAt = isset($news_entries[0]) ? $news_entries[0]->updated_at->format('Y-m-d\TH:i:sP') : '0000:00:00T00:00:00+00:00'; $html = '<?xml version="1.0" encoding="utf-8"?> <feed xmlns="http://www.w3.org/2005/Atom"> <title>' . config('app_name') . '</title> <id>' . $request->getHttpHost() . htmlspecialchars(preg_replace( '#[&?]key=[a-f\d]{32}#', '', $request->getRequestUri() )) . '</id> <updated>' . $updatedAt . '</updated>' . "\n"; foreach ($news_entries as $news_entry) { $html .= make_atom_entry_from_news($news_entry); } $html .= '</feed>'; return $html; } /** * @param News $news * @return string */ function make_atom_entry_from_news(News $news) { return ' <entry> <title>' . htmlspecialchars($news->title) . '</title> <link href="' . page_link_to('news_comments', ['nid' => $news->id]) . '"/> <id>' . preg_replace( '#^https?://#', '', page_link_to('news_comments', ['nid' => $news->id]) ) . '</id> <updated>' . $news->updated_at->format('Y-m-d\TH:i:sP') . '</updated> <summary type="html">' . htmlspecialchars($news->text) . '</summary> </entry>' . "\n"; }