Item9186: change function changePassword to use standart ldap api

This patch modify operation of ldap password change to use standart API. This allow to use some overlays on ldap server to sync ldappassword to other attributes. For example smbk5pwd overlay witch work only with LDAP Password Modify operation rather than just updating the userPassword attribute directly

--- Foswiki/Contrib/LdapContrib.pm.orig 2010-06-17 16:19:23.000000000 +0000
+++ Foswiki/Contrib/LdapContrib.pm      2010-06-18 13:03:30.000000000 +0000
@@ -18,7 +18,9 @@
 package Foswiki::Contrib::LdapContrib;

 use strict;
+use Net::LDAP;
 use Net::LDAP::Constant qw(LDAP_SUCCESS LDAP_SIZELIMIT_EXCEEDED LDAP_CONTROL_PAGED);
+use Net::LDAP::Extension::SetPassword;
 use DB_File;

 use vars qw($VERSION $RELEASE %sharedLdapContrib);
@@ -1770,9 +1772,7 @@

   return undef unless $this->connect($dn, $oldPassword);

-  my $msg = $this->{ldap}->modify( $dn,
-    replace => { 'userPassword' => $newPassword }
-  );
+  my $msg = $this->{ldap}->set_password( oldpasswd => $oldPassword, newpasswd => $newPassword);

   my $errorCode = $this->checkError($msg);

-- AlexanderKriventsov - 23 Jun 2010

Thanks for the patch! Added to LdapContrib 4.10

-- MichaelDaum - 09 Nov 2010

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