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<?php
/**
* 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.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Redirect a user to the login page
*
* This is essentially an ErrorPageError exception which by default uses the
* 'exception-nologin' as a title and 'exception-nologin-text' for the message.
*
* @note In order for this exception to redirect, the error message passed to the
* constructor has to be explicitly added to LoginForm::validErrorMessages. Otherwise,
* the user will just be shown the message rather than redirected.
*
* @par Example:
* @code
* if( $user->isAnon() ) {
* throw new UserNotLoggedIn();
* }
* @endcode
*
* Note the parameter order differs from ErrorPageError, this allows you to
* simply specify a reason without overriding the default title.
*
* @par Example:
* @code
* if( $user->isAnon() ) {
* throw new UserNotLoggedIn( 'action-require-loggedin' );
* }
* @endcode
*
* @see bug 37627
* @since 1.20
* @ingroup Exception
*/
class UserNotLoggedIn extends ErrorPageError {
/**
* @note The value of the $reasonMsg parameter must be put into LoginForm::validErrorMessages
* if you want the user to be automatically redirected to the login form.
*
* @param string $reasonMsg A message key containing the reason for the error.
* Optional, default: 'exception-nologin-text'
* @param string $titleMsg A message key to set the page title.
* Optional, default: 'exception-nologin'
* @param array $params Parameters to wfMessage().
* Optional, default: array()
*/
public function __construct(
$reasonMsg = 'exception-nologin-text',
$titleMsg = 'exception-nologin',
$params = array()
) {
parent::__construct( $titleMsg, $reasonMsg, $params );
}
/**
* Redirect to Special:Userlogin if the specified message is compatible. Otherwise,
* show an error page as usual.
*/
public function report() {
// If an unsupported message is used, don't try redirecting to Special:Userlogin,
// since the message may not be compatible.
if ( !in_array( $this->msg, LoginForm::$validErrorMessages ) ) {
parent::report();
}
// Message is valid. Redirec to Special:Userlogin
$context = RequestContext::getMain();
$output = $context->getOutput();
$query = $context->getRequest()->getValues();
// Title will be overridden by returnto
unset( $query['title'] );
// Redirect to Special:Userlogin
$output->redirect( SpecialPage::getTitleFor( 'Userlogin' )->getFullURL( array(
// Return to this page when the user logs in
'returnto' => $context->getTitle()->getFullText(),
'returntoquery' => wfArrayToCgi( $query ),
'warning' => $this->msg,
) ) );
$output->output();
}
}
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