+function createCache($content, $cacheFile)
+{
+ $fp = fopen($cacheFile,"w");
+ if($fp)
+ {
+ fwrite($fp,$content);
+ fclose($fp);
+ }
+ else
+ echo "WARNING: couldn't create cache file";
+
+ return;
+}
+
+function getCache($cacheFile, $expireTime)
+{
+ if( file_exists($cacheFile) &&
+ filemtime($cacheFile )>( time() - $expireTime ) )
+ {
+ return file_get_contents($cacheFile);
+ }
+
+ return false;
+}
+
+function check_vacation($userid)
+{
+ /* get start date */
+ $result = DB_query_array("SELECT value FROM User_Prefs".
+ " WHERE user_id='$userid' AND pref_key='vacation start'" );
+ if($result)
+ $start = $result[0];
+ else
+ return NULL;
+
+ /* get end date */
+ $result = DB_query_array("SELECT value FROM User_Prefs".
+ " WHERE user_id='$userid' AND pref_key='vacation stop'" );
+ if($result)
+ $stop = $result[0];
+ else
+ return NULL;
+
+ /* get comment */
+ $result = DB_query_array("SELECT value FROM User_Prefs".
+ " WHERE user_id='$userid' AND pref_key='vacation comment'" );
+ if($result)
+ $comment = $result[0];
+ else
+ $comment = '';
+
+ /* check if user is on vacation. TODO: use user's timezone */
+ if( (time() - strtotime($start) >0) &&
+ (strtotime($stop) - time() >0))
+ return array ($start,$stop,$comment);
+ else
+ return NULL;
+}
+
+function cancel_game($why,$gameid)
+{
+ $gameid = DB_quote_smart($gameid);
+
+ /* update the game table */
+ switch($why)
+ {
+ case 'timedout':
+ DB_query("UPDATE Game SET status='cancel-timedout' WHERE id=$gameid");
+ break;
+ case 'nines':
+ DB_query("UPDATE Game SET status='cancel-nines' WHERE id=$gameid");
+ break;
+ case 'trump':
+ DB_query("UPDATE Game SET status='cancel-trump' WHERE id=$gameid");
+ break;
+ case 'noplay':
+ DB_query("UPDATE Game SET status='cancel-noplay' WHERE id=$gameid");
+ break;
+ }
+ /* set each player to gameover */
+ $result = DB_query("SELECT id FROM Hand WHERE game_id=".DB_quote_smart($gameid));
+ while($r = DB_fetch_array($result))
+ {
+ $id = $r[0];
+ DB_query("UPDATE Hand SET status='gameover' WHERE id=".DB_quote_smart($id));
+ }
+
+ return;
+}
+