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<?php
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// publically available page to feed the news to feedreaders
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function user_atom() {
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global $user, $DISPLAY_NEWS;
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if (isset ($_REQUEST['key']) && preg_match("/^[0-9a-f]{32}$/", $_REQUEST['key']))
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$key = $_REQUEST['key'];
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else
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die("Missing key.");
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$user = User_by_api_key($key);
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if($user === false)
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die("Unable to find user.");
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if($user == null)
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die("Key invalid.");
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if(!in_array('atom', privileges_for_user($user['UID'])))
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die("No privilege for atom.");
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$news = sql_select("SELECT * FROM `News` " . (empty($_REQUEST['meetings'])? '' : 'WHERE `Treffen` = 1 ') . "ORDER BY `ID` DESC LIMIT " . sql_escape($DISPLAY_NEWS));
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header('Content-Type: application/atom+xml; charset=utf-8');
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$html = '<?xml version="1.0" encoding="utf-8"?>
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<feed xmlns="http://www.w3.org/2005/Atom">
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<title>Engelsystem</title>
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<id>' . $_SERVER['HTTP_HOST'] . htmlspecialchars(preg_replace('#[&?]key=[a-f0-9]{32}#', '', $_SERVER['REQUEST_URI'])) . '</id>
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<updated>' . date('Y-m-d\TH:i:sP', $news[0]['Datum']) . "</updated>\n";
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foreach ($news as $news_entry) {
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$html .= " <entry>
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<title>" . htmlspecialchars($news_entry['Betreff']) . "</title>
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<link href=\"" . page_link_to_absolute("news_comments&nid=") . "${news_entry['ID']}\"/>
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<id>" . preg_replace('#^https?://#', '', page_link_to_absolute("news")) . "-${news_entry['ID']}</id>
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<updated>" . date('Y-m-d\TH:i:sP', $news_entry['Datum']) . "</updated>
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<summary type=\"html\">" . htmlspecialchars($news_entry['Text']) . "</summary>
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</entry>\n";
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}
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$html .= "</feed>";
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header("Content-Length: " . strlen($html));
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echo $html;
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die();
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}
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?>
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