Adding new plugin output section 'provider_link_after'

[squirrelmail.git] / functions / auth.php

diff --git a/functions/auth.php b/functions/auth.php
index 2f85f7d325e358b58053a9ee00b90350815b4c44..de11da7da3f70c147daeb6ec02fe1747329325cf 100644 (file)
--- a/functions/auth.php
+++ b/functions/auth.php
@@ -9,7 +9,7 @@
  *  functions/global.php
  *  functions/strings.php.
  *
- * @copyright © 1999-2006 The SquirrelMail Project Team
+ * @copyright © 1999-2007 The SquirrelMail Project Team
  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  * @version $Id$
  * @package squirrelmail
@@ -122,10 +122,11 @@ function cram_md5_response ($username,$password,$challenge) {
  *   define the digest-uri.
  * @param string $host The host name, usually the server's FQDN; it is used to
  *   define the digest-uri.
+ * @param string $authz Authorization ID (since 1.5.2)
  * @return string The response to be sent to the IMAP server
  * @since 1.4.0
  */
-function digest_md5_response ($username,$password,$challenge,$service,$host) {
+function digest_md5_response ($username,$password,$challenge,$service,$host,$authz='') {
     $result=digest_md5_parse_challenge($challenge);
 
     // verify server supports qop=auth
@@ -151,6 +152,9 @@ function digest_md5_response ($username,$password,$challenge,$service,$host) {
     $string_a1 .= utf8_encode($password);
     $string_a1 = hmac_md5($string_a1);
     $A1 = $string_a1 . ":" . $result['nonce'] . ":" . $cnonce;
+    if(!empty($authz)) {
+        $A1 .= ":" . utf8_encode($authz);
+    }
     $A1 = bin2hex(hmac_md5($A1));
     $A2 = "AUTHENTICATE:$digest_uri_value";
     // If qop is auth-int or auth-conf, A2 gets a little extra
@@ -166,6 +170,9 @@ function digest_md5_response ($username,$password,$challenge,$service,$host) {
     $reply .= 'nonce="' . $result['nonce'] . '",nc=' . $ncount . ',cnonce="' . $cnonce . '",';
     $reply .= "digest-uri=\"$digest_uri_value\",response=$response_value";
     $reply .= ',qop=' . $qop_value;
+    if(!empty($authz)) {
+        $reply .= ',authzid=' . $authz;
+    }
     $reply = base64_encode($reply);
     return $reply . "\r\n";