From d8627a477e7b1569d0d5d29b97e0ba7a693d2421 Mon Sep 17 00:00:00 2001
From: moodler <moodler>
Date: Thu, 15 Apr 2004 15:57:32 +0000
Subject: [PATCH] Thanks to Dave Lopata <Dave@Lopata.Net>, Moodle now supports
 LDAP 3

---
 auth/ldap/config.html | 18 ++++++++++++++++++
 auth/ldap/lib.php     |  4 ++++
 lang/en/auth.php      |  1 +
 3 files changed, 23 insertions(+)

diff --git a/auth/ldap/config.html b/auth/ldap/config.html
index 16238b8d67..e09629726c 100644
--- a/auth/ldap/config.html
+++ b/auth/ldap/config.html
@@ -17,6 +17,9 @@
     if (!isset($config->ldap_bind_pw)) {
         $config->ldap_bind_pw = "";
     }
+    if (empty($config->ldap_version)) {
+        $config->ldap_version  = "2";
+    }
 ?>
 <tr valign="top" BGCOLOR="<?php echo $THEME->cellheading2 ?>">
 	<TD ALIGN=RIGHT><P>ldap_host_url:</TD>
@@ -29,6 +32,21 @@
     </TD>
 </TR>
 
+<tr valign="top" BGCOLOR="<?php echo $THEME->cellheading2 ?>">
+	<TD ALIGN=RIGHT><P>ldap_version:</TD>
+	<TD>
+    <?php
+       $versions[2] = "2";
+       $versions[3] = "3";
+       choose_from_menu($versions, "ldap_version", $config->ldap_version, "");
+	   if (isset($err["ldap_version"])) formerr($err["ldap_version"]); 
+    ?>
+	</TD>
+    <TD>
+    <?php  print_string("auth_ldap_version","auth") ?>
+    </TD>
+</TR>
+
 <TR VALIGN=TOP BGCOLOR="<?php echo $THEME->cellheading2 ?>">
 	<TD ALIGN=RIGHT><P>ldap_contexts:</TD>
 	<TD>
diff --git a/auth/ldap/lib.php b/auth/ldap/lib.php
index 0fd1555148..42c519dde1 100644
--- a/auth/ldap/lib.php
+++ b/auth/ldap/lib.php
@@ -221,6 +221,10 @@ function auth_ldap_connect(){
     $result = ldap_connect($CFG->ldap_host_url);
 
     if ($result) {
+        if (!empty($CFG->ldap_version)) {
+            ldap_set_option($result, LDAP_OPT_PROTOCOL_VERSION, $CFG->ldap_version);
+        }
+
         return $result;
 
     } else {
diff --git a/lang/en/auth.php b/lang/en/auth.php
index 06edb9fbaf..70a22c9cf8 100644
--- a/lang/en/auth.php
+++ b/lang/en/auth.php
@@ -31,6 +31,7 @@ $string['auth_ldap_memberattribute'] = 'Specify user member attribute, when user
 $string['auth_ldap_search_sub'] = 'Put value &lt;&gt; 0 if  you like to search users from subcontexts.';
 $string['auth_ldap_update_userinfo'] = 'Update user information (firstname, lastname, address..) from LDAP to Moodle. Look at /auth/ldap/attr_mappings.php for mapping information';
 $string['auth_ldap_user_attribute'] = 'The attribute used to name/search users. Usually \'cn\'.';
+$string['auth_ldap_version'] = 'The version of the LDAP protocol your server is using.';
 $string['auth_ldapdescription'] = 'This method provides authentication against an external LDAP server.
                                   If the given username and password are valid, Moodle creates a new user 
                                   entry in its database. This module can read user attributes from LDAP and prefill 
-- 
2.39.5