Merge branch 'main' into issue-3911issue-3911

1 files changed, 81 insertions, 0 deletions

diff --git a/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php b/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php
new file mode 100644
index 0000000..3acb1d8
--- /dev/null
+++ b/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php
@@ -0,0 +1,81 @@
+<?php
+# Lifter007: TODO
+# Lifter003: TODO
+# Lifter010: TODO
+// +---------------------------------------------------------------------------+
+// This file is part of Stud.IP
+// StudipAuthLdapReadAndBind.php
+// Stud.IP authentication against LDAP Server using read-only account and
+// user bind
+//
+// Copyright (c) 2006 André Noack <noack@data-quest.de>
+// Suchi & Berg GmbH <info@data-quest.de>
+// +---------------------------------------------------------------------------+
+// 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 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.
+// +---------------------------------------------------------------------------+
+
+/**
+ * Stud.IP authentication against LDAP Server
+ *
+ * Stud.IP authentication against LDAP Server using read-only account and
+ * following user bind
+ *
+ * @access   public
+ * @author   André Noack <noack@data-quest.de>
+ * @package
+ */
+class StudipAuthLdapReadAndBind extends StudipAuthLdap
+{
+
+    public $anonymous_bind = false;
+
+    public $reader_dn;
+    public $reader_password;
+
+    function getUserDn($username)
+    {
+        $user_dn = '';
+        if (!($r = @ldap_bind($this->conn, $this->reader_dn, $this->reader_password))) {
+            $this->error_msg = sprintf(_('Anmeldung von %s fehlgeschlagen.'), $this->reader_dn) . $this->getLdapError();
+            return false;
+        }
+        if (!($result = @ldap_search($this->conn, $this->base_dn, $this->getLdapFilter($username), ['dn']))) {
+            $this->error_msg = _('Durchsuchen des LDAP Baumes fehlgeschlagen.') . $this->getLdapError();
+            return false;
+        }
+        if (!ldap_count_entries($this->conn, $result)) {
+            $this->error_msg = sprintf(_('%s wurde nicht unterhalb von %s gefunden.'), $username, $this->base_dn);
+            return false;
+        }
+        if (!($entry = @ldap_first_entry($this->conn, $result))) {
+            $this->error_msg = $this->getLdapError();
+            return false;
+        }
+        if (!($user_dn = @ldap_get_dn($this->conn, $entry))) {
+            $this->error_msg = $this->getLdapError();
+            return false;
+        }
+        return $user_dn;
+    }
+
+    function isUsedUsername($username)
+    {
+        if (!$this->doLdapConnect()) {
+            return false;
+        }
+        $ret = (bool)$this->getUserDn($username);
+        ldap_unbind($this->conn);
+        return $ret;
+    }
+}