split user atom into different functions

includes/pages/user_atom.php

@@ -3,40 +3,53 @@
 // publically available page to feed the news to feedreaders
 function user_atom() {
   global $user, $DISPLAY_NEWS;
-
-  if (isset ($_REQUEST['key']) && preg_match("/^[0-9a-f]{32}$/", $_REQUEST['key']))
+  
+  if (isset($_REQUEST['key']) && preg_match("/^[0-9a-f]{32}$/", $_REQUEST['key'])) {
     $key = $_REQUEST['key'];
-  else
-    die("Missing key.");
-
+  } else {
+    engelsystem_error("Missing key.");
+  }
+  
   $user = User_by_api_key($key);
-  if($user === false)
-    die("Unable to find user.");
-  if($user == null)
-    die("Key invalid.");
-  if(!in_array('atom', privileges_for_user($user['UID'])))
-    die("No privilege for atom.");
-
-  $news = sql_select("SELECT * FROM `News` " . (empty($_REQUEST['meetings'])? '' : 'WHERE `Treffen` = 1 ') . "ORDER BY `ID` DESC LIMIT " . sql_escape($DISPLAY_NEWS));
-
+  if ($user === false) {
+    engelsystem_error("Unable to find user.");
+  }
+  if ($user == null) {
+    engelsystem_error("Key invalid.");
+  }
+  if (! in_array('atom', privileges_for_user($user['UID']))) {
+    engelsystem_error("No privilege for atom.");
+  }
+  
+  $news = sql_select("SELECT * FROM `News` " . (empty($_REQUEST['meetings']) ? '' : 'WHERE `Treffen` = 1 ') . "ORDER BY `ID` DESC LIMIT " . sql_escape($DISPLAY_NEWS));
+  
+  $output = make_atom_entries_from_news($news);
+  
   header('Content-Type: application/atom+xml; charset=utf-8');
+  header("Content-Length: " . strlen($output));
+  raw_output($html);
+}
+
+function make_atom_entries_from_news($news_entries) {
   $html = '<?xml version="1.0" encoding="utf-8"?>
   <feed xmlns="http://www.w3.org/2005/Atom">
   <title>Engelsystem</title>
   <id>' . $_SERVER['HTTP_HOST'] . htmlspecialchars(preg_replace('#[&?]key=[a-f0-9]{32}#', '', $_SERVER['REQUEST_URI'])) . '</id>
   <updated>' . date('Y-m-d\TH:i:sP', $news[0]['Datum']) . "</updated>\n";
-  foreach ($news as $news_entry) {
-    $html .= "  <entry>
+  foreach ($news_entries as $news_entry) {
+    $html .= make_atom_entry_from_news($news_entry);
+  }
+  $html .= "</feed>";
+  return $html;
+}
+
+function make_atom_entry_from_news($news_entry) {
+  return "  <entry>
     <title>" . htmlspecialchars($news_entry['Betreff']) . "</title>
     <link href=\"" . page_link_to_absolute("news_comments&amp;nid=") . "${news_entry['ID']}\"/>
-    <id>" . preg_replace('#^https?://#', '', page_link_to_absolute("news")) . "-${news_entry['ID']}</id>
-    <updated>" . date('Y-m-d\TH:i:sP', $news_entry['Datum']) . "</updated>
+      <id>" . preg_replace('#^https?://#', '', page_link_to_absolute("news")) . "-${news_entry['ID']}</id>
+      <updated>" . date('Y-m-d\TH:i:sP', $news_entry['Datum']) . "</updated>
     <summary type=\"html\">" . htmlspecialchars($news_entry['Text']) . "</summary>
     </entry>\n";
 }
-$html .= "</feed>";
-header("Content-Length: " . strlen($html));
-echo $html;
-die();
-}
 ?>