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<?php
namespace MediaWiki\Auth;
use User;
/**
* Links third-party authentication to the user's account
*
* If the user logged into linking provider accounts that aren't linked to a
* local user, this provider will prompt the user to link them after a
* successful login or account creation.
*
* To avoid confusing behavior, this provider should be later in the
* configuration list than any provider that can abort the authentication
* process, so that it is only invoked for successful authentication.
*/
class ConfirmLinkSecondaryAuthenticationProvider extends AbstractSecondaryAuthenticationProvider {
public function getAuthenticationRequests( $action, array $options ) {
return [];
}
public function beginSecondaryAuthentication( $user, array $reqs ) {
return $this->beginLinkAttempt( $user, 'AuthManager::authnState' );
}
public function continueSecondaryAuthentication( $user, array $reqs ) {
return $this->continueLinkAttempt( $user, 'AuthManager::authnState', $reqs );
}
public function beginSecondaryAccountCreation( $user, $creator, array $reqs ) {
return $this->beginLinkAttempt( $user, 'AuthManager::accountCreationState' );
}
public function continueSecondaryAccountCreation( $user, $creator, array $reqs ) {
return $this->continueLinkAttempt( $user, 'AuthManager::accountCreationState', $reqs );
}
/**
* Begin the link attempt
* @param User $user
* @param string $key Session key to look in
* @return AuthenticationResponse
*/
protected function beginLinkAttempt( $user, $key ) {
$session = $this->manager->getRequest()->getSession();
$state = $session->getSecret( $key );
if ( !is_array( $state ) ) {
return AuthenticationResponse::newAbstain();
}
$maybeLink = array_filter( $state['maybeLink'], function ( $req ) use ( $user ) {
if ( !$req->action ) {
$req->action = AuthManager::ACTION_CHANGE;
}
$req->username = $user->getName();
return $this->manager->allowsAuthenticationDataChange( $req )->isGood();
} );
if ( !$maybeLink ) {
return AuthenticationResponse::newAbstain();
}
$req = new ConfirmLinkAuthenticationRequest( $maybeLink );
return AuthenticationResponse::newUI(
[ $req ],
wfMessage( 'authprovider-confirmlink-message' ),
'warning'
);
}
/**
* Continue the link attempt
* @param User $user
* @param string $key Session key to look in
* @param AuthenticationRequest[] $reqs
* @return AuthenticationResponse
*/
protected function continueLinkAttempt( $user, $key, array $reqs ) {
$req = ButtonAuthenticationRequest::getRequestByName( $reqs, 'linkOk' );
if ( $req ) {
return AuthenticationResponse::newPass();
}
$req = AuthenticationRequest::getRequestByClass( $reqs, ConfirmLinkAuthenticationRequest::class );
if ( !$req ) {
// WTF? Retry.
return $this->beginLinkAttempt( $user, $key );
}
$session = $this->manager->getRequest()->getSession();
$state = $session->getSecret( $key );
if ( !is_array( $state ) ) {
return AuthenticationResponse::newAbstain();
}
$maybeLink = [];
foreach ( $state['maybeLink'] as $linkReq ) {
$maybeLink[$linkReq->getUniqueId()] = $linkReq;
}
if ( !$maybeLink ) {
return AuthenticationResponse::newAbstain();
}
$state['maybeLink'] = [];
$session->setSecret( $key, $state );
$statuses = [];
$anyFailed = false;
foreach ( $req->confirmedLinkIDs as $id ) {
if ( isset( $maybeLink[$id] ) ) {
$req = $maybeLink[$id];
$req->username = $user->getName();
if ( !$req->action ) {
// Make sure the action is set, but don't override it if
// the provider filled it in.
$req->action = AuthManager::ACTION_CHANGE;
}
$status = $this->manager->allowsAuthenticationDataChange( $req );
$statuses[] = [ $req, $status ];
if ( $status->isGood() ) {
$this->manager->changeAuthenticationData( $req );
} else {
$anyFailed = true;
}
}
}
if ( !$anyFailed ) {
return AuthenticationResponse::newPass();
}
$combinedStatus = \Status::newGood();
foreach ( $statuses as $data ) {
list( $req, $status ) = $data;
$descriptionInfo = $req->describeCredentials();
$description = wfMessage(
'authprovider-confirmlink-option',
$descriptionInfo['provider']->text(), $descriptionInfo['account']->text()
)->text();
if ( $status->isGood() ) {
$combinedStatus->error( wfMessage( 'authprovider-confirmlink-success-line', $description ) );
} else {
$combinedStatus->error( wfMessage(
'authprovider-confirmlink-failed-line', $description, $status->getMessage()->text()
) );
}
}
return AuthenticationResponse::newUI(
[
new ButtonAuthenticationRequest(
'linkOk', wfMessage( 'ok' ), wfMessage( 'authprovider-confirmlink-ok-help' )
)
],
$combinedStatus->getMessage( 'authprovider-confirmlink-failed' ),
'error'
);
}
}
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