import of Diogenes 0.9.18

[diogenes.git] / include / diogenes.webdav.logger.inc.php

diff --git a/include/diogenes.webdav.logger.inc.php b/include/diogenes.webdav.logger.inc.php
new file mode 100644 (file)
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+++ b/include/diogenes.webdav.logger.inc.php
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+<?php
+/*
+ * Copyright (C) 2003-2004 Polytechnique.org
+ * http://opensource.polytechnique.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+require_once 'diogenes/diogenes.core.logger.inc.php';
+
+/** Class for logging WebDAV activity.
+ *
+ * The difference with DiogenesCoreLogger is that we do not have
+ * PHP sessions in WebDAV mode so we need a small hack to avoid creating
+ * a new 'session' entry for each operation.
+ */
+class DiogenesWebDAVLogger extends DiogenesCoreLogger {
+
+  /** is this a new WebDAV 'session' ? */
+  var $newsession;
+
+  /** WebDAV 'session' duration in seconds */
+  var $sessionlength = 1800;
+
+  /** The constructor, creates a new entry in the sessions table
+   *
+   * @param $uid the id of the logged user
+   * @param $auth authentication method for the logged user
+   * @param $username the username of the logged user
+   * @return VOID
+   */
+  function DiogenesWebDAVLogger($uid,$auth,$username) {
+    global $globals;
+
+    $this->DiogenesCoreLogger($uid,'',$auth,'');
+
+    if ($this->newsession) {
+      $this->log("auth_ok","{$username}@WebDAV");
+    }
+  }
+
+
+  /** Try to pickup an existing session, otherwise create a new entry
+   * 
+   * @param $uid the id of the logged user
+   * @param $suid the id of the administrator who has just su'd to the user
+   * @param $auth authentication method for the logged user
+   * @param $sauth authentication method for the su'er
+   * @return session the session id
+   */
+  function writeSession($uid,$suid,$auth,$sauth) {
+    global $globals;
+
+    // we look for a session with the same user, auth and browser that is less
+    // than $sessionlength seconds old
+    $browser = (isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '');
+    $stime = date("YmdHis",time()-$this->sessionlength);
+    $res = $globals->db->query("select id from {$this->table_sessions} where uid='$uid' and auth='$auth' and browser='$browser' and start > $stime");
+    
+    if (list($session) = mysql_fetch_row($res)) {
+       // we have an existing session
+      $this->newsession = false;
+    } else {
+      // we do not have an existing session
+      $this->newsession = true;
+      $session = parent::writeSession($uid,$suid,$auth,$sauth);
+    }
+    mysql_free_result($res);
+    return $session;
+  }
+
+} 
+
+?>