#
# TWiki Enterprise Collaboration Platform, http://TWiki.org/
#
# Copyright (C) 2000-2006 TWiki Contributors.
#
# 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. For
# more details read LICENSE in the root of this distribution.
#
# 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.
#
# As per the GPL, removal of this notice is prohibited.
package TWiki::Configure::UIs::AUTH;

use strict;

use TWiki::Configure::UI;

use base 'TWiki::Configure::UI';

my %nonos = (
    cfgAccess=>1,
    newCfgP=>1,
    confCfgP=>1,
   );

sub ui {
    my ($this, $canChangePW, $actionMess) = @_;
    my $output = '';

    my @script = File::Spec->splitdir($ENV{SCRIPT_NAME});
    my $scriptName = pop(@script);
    $scriptName =~ s/.*[\/\\]//;  # Fix for Item3511, on Win XP

    $output .= CGI::start_form({ action=>$scriptName, method=>'post' });

    # Pass URL params through, except those below
    foreach my $param ( $TWiki::query->param ) {
        next if ($nonos{$param});
        $output .= $this->hidden( $param, $TWiki::query->param( $param ));
        $output .= "\n";
    }

    # and add a few more
    $output .= "<div id ='twikiPassword'><div class='twikiFormSteps'>\n";

    $output .= CGI::div({ class=>'twikiFormStep' },
                   CGI::h3('Enter the configuration password'));

    $output .= CGI::div({ class=>'twikiFormStep' },
                   CGI::h3(CGI::strong("Your Password:")).
                       CGI::p(CGI::password_field(
                           'cfgAccess', '', 20, 80 ) . '&nbsp;' .
                             CGI::submit(-class=>'twikiSubmit',
                                         -value=>$actionMess)));

    if ($TWiki::cfg{Password} ne '') {
        $output .= CGI::div( { class=>'twikiFormStep' },
        	CGI::p( CGI::strong('Forgotten your password?' )) .
        	CGI::p(<<'HERE'));
To reset the password, log in to the server and delete the
<code>$TWiki::cfg{Password} = '...';</code> line from
<code>lib/LocalSite.cfg</code>
HERE
    }

    $output .= '</div><!--/twikiFormSteps--></div><!--/twikiPassword-->';

    if ($canChangePW) {
        $output .= "<div id='twikiPasswordChange'><div class='twikiFormSteps'>\n";
        $output .= '<div class="explanation">';
        $output .= CGI::img({width=>'16', height=>'16',
                             src=>$scriptName.'?action=image;image=warning.gif;type=image/gif', alt=>''});
        $output .= '&nbsp;'.CGI::span(
            { class=>'twikiAlert' }, CGI::strong('Notes on Security'));
        $output .= <<HERE;
<ul>
 <li>
  If you don't set a password, or the password is cracked, then
  <code>configure</code> could be used to do <strong>very</strong> nasty
  things to your server.
 </li>
 <li>
  If you are running TWiki on a public website, you are
  <strong>strongly</strong> advised to totally disable saving from
  <code>configure</code> by making <code>lib/LocalSite.cfg</code> readonly once
  you are happy with your configuration.
 </li>
</ul>
</div><!--expanation-->
HERE

        my $submitStr = $actionMess;
        $output .= CGI::div( { class=>'twikiFormStep' },
                             CGI::h3( { class=>'twikiFormStep' },
                                      'You may set a new password here:') );
        $output .= CGI::div( { class=>'twikiFormStep' },
                             CGI::strong('New Password:') .
								 CGI::p( CGI::password_field(
                                     'newCfgP', '', 20, 80 )
                                  ));
        $output .= CGI::div( { class=>'twikiFormStep' },
                             CGI::strong('Confirm Password:') .
								 CGI::p( CGI::password_field( 
                                     'confCfgP', '', 20, 80 )
                                  ));
        $submitStr = 'Change Password and '.$submitStr;
        $output .= CGI::div( { class=>'twikiFormStep twikiLast' },
                             CGI::submit( -class=>'twikiSubmit', -value=>$submitStr ));
        $output .= "</div><!--/twikiFormSteps--></div><!--/twikiPasswordChange-->";
    }

    return $output.CGI::end_form();
}

1;
