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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
* @ingroup Auth
*/
namespace MediaWiki\Auth;
use MediaWiki\MainConfigNames;
use MediaWiki\Password\Password;
use MediaWiki\Password\PasswordError;
use MediaWiki\Password\PasswordFactory;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Status\Status;
use MediaWiki\User\User;
use Wikimedia\Assert\Assert;
/**
* Basic framework for a primary authentication provider that uses passwords
*
* @stable to extend
* @ingroup Auth
* @since 1.27
*/
abstract class AbstractPasswordPrimaryAuthenticationProvider
extends AbstractPrimaryAuthenticationProvider
{
/** @var bool Whether this provider should ABSTAIN (false) or FAIL (true) on password failure */
protected $authoritative;
/** @var PasswordFactory|null */
private $passwordFactory = null;
/**
* @stable to call
* @param array $params Settings
* - authoritative: Whether this provider should ABSTAIN (false) or FAIL
* (true) on password failure
*/
public function __construct( array $params = [] ) {
$this->authoritative = !isset( $params['authoritative'] ) || (bool)$params['authoritative'];
}
/**
* @return PasswordFactory
*/
protected function getPasswordFactory() {
if ( $this->passwordFactory === null ) {
$this->passwordFactory = new PasswordFactory(
$this->config->get( MainConfigNames::PasswordConfig ),
$this->config->get( MainConfigNames::PasswordDefault )
);
}
return $this->passwordFactory;
}
/**
* Get a Password object from the hash
* @param string $hash
* @return Password
*/
protected function getPassword( $hash ) {
$passwordFactory = $this->getPasswordFactory();
try {
return $passwordFactory->newFromCiphertext( $hash );
} catch ( PasswordError $e ) {
$class = static::class;
$this->logger->debug( "Invalid password hash in {$class}::getPassword()" );
return $passwordFactory->newFromCiphertext( null );
}
}
/**
* Return the appropriate response for failure
* @param PasswordAuthenticationRequest $req
* @return AuthenticationResponse
*/
protected function failResponse( PasswordAuthenticationRequest $req ) {
if ( $this->authoritative ) {
return AuthenticationResponse::newFail(
wfMessage( $req->password === '' ? 'wrongpasswordempty' : 'wrongpassword' )
);
} else {
return AuthenticationResponse::newAbstain();
}
}
/**
* Check that the password is valid
*
* This should be called *before* validating the password. If the result is
* not ok, login should fail immediately.
*
* @param string $username
* @param string $password
* @return Status
*/
protected function checkPasswordValidity( $username, $password ) {
return User::newFromName( $username )->checkPasswordValidity( $password );
}
/**
* Adds user-friendly description to a fatal password validity check error.
* These errors prevent login even when the password is correct, so just displaying the
* description of the error would be somewhat confusing.
* @param string $username
* @param Status $status The status returned by checkPasswordValidity(); must be a fatal.
* @return AuthenticationResponse A FAIL response with an improved description.
*/
protected function getFatalPasswordErrorResponse(
string $username,
Status $status
): AuthenticationResponse {
Assert::precondition( !$status->isOK(), __METHOD__ . ' expects a fatal Status' );
$resetLinkUrl = SpecialPage::getTitleFor( 'PasswordReset' )
->getFullURL( [ 'wpUsername' => $username ] );
return AuthenticationResponse::newFail( wfMessage( 'fatalpassworderror',
$status->getMessage(), $resetLinkUrl ) );
}
/**
* Check if the password should be reset
*
* This should be called after a successful login. It sets 'reset-pass'
* authentication data if necessary, see
* ResetPassSecondaryAuthenticationProvider.
*
* @param string $username
* @param Status $status From $this->checkPasswordValidity()
* @param \stdClass|null $data Passed through to $this->getPasswordResetData()
*/
protected function setPasswordResetFlag( $username, Status $status, $data = null ) {
$reset = $this->getPasswordResetData( $username, $data );
if ( !$reset && $this->config->get( MainConfigNames::InvalidPasswordReset ) &&
!$status->isGood() ) {
$hard = $status->getValue()['forceChange'] ?? false;
if ( $hard || !empty( $status->getValue()['suggestChangeOnLogin'] ) ) {
$reset = (object)[
'msg' => $status->getMessage( $hard ? 'resetpass-validity' : 'resetpass-validity-soft' ),
'hard' => $hard,
];
}
}
if ( $reset ) {
$this->manager->setAuthenticationSessionData( 'reset-pass', $reset );
}
}
/**
* Get password reset data, if any
*
* @stable to override
* @param string $username
* @param \stdClass|null $data
* @return \stdClass|null { 'hard' => bool, 'msg' => Message }
*/
protected function getPasswordResetData( $username, $data ) {
return null;
}
/**
* Get expiration date for a new password, if any
*
* @stable to override
* @param string $username
* @return string|null
*/
protected function getNewPasswordExpiry( $username ) {
$days = $this->config->get( MainConfigNames::PasswordExpirationDays );
$expires = $days ? wfTimestamp( TS_MW, time() + $days * 86400 ) : null;
// Give extensions a chance to force an expiration
$this->getHookRunner()->onResetPasswordExpiration(
User::newFromName( $username ), $expires );
return $expires;
}
/**
* @stable to override
* @param string $action
* @param array $options
*
* @return AuthenticationRequest[]
*/
public function getAuthenticationRequests( $action, array $options ) {
switch ( $action ) {
case AuthManager::ACTION_LOGIN:
case AuthManager::ACTION_REMOVE:
case AuthManager::ACTION_CREATE:
case AuthManager::ACTION_CHANGE:
return [ new PasswordAuthenticationRequest() ];
default:
return [];
}
}
}