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<?php
namespace MediaWiki\Extension\OATHAuth\HTMLForm;
use Endroid\QrCode\Builder\Builder;
use Endroid\QrCode\Encoding\Encoding;
use Endroid\QrCode\ErrorCorrectionLevel;
use Endroid\QrCode\RoundBlockSizeMode;
use Endroid\QrCode\Writer\SvgWriter;
use MediaWiki\Config\ConfigException;
use MediaWiki\Exception\MWException;
use MediaWiki\Extension\OATHAuth\Key\TOTPKey;
use MediaWiki\Html\Html;
use MediaWiki\Logger\LoggerFactory;
use MediaWiki\Status\Status;
class TOTPEnableForm extends OATHAuthOOUIHTMLForm {
/**
* @param array|bool|Status|string $submitResult
* @return string
*/
public function getHTML( $submitResult ) {
$out = $this->getOutput();
$out->addModuleStyles( 'ext.oath.styles' );
$out->addModules( 'ext.oath' );
return parent::getHTML( $submitResult );
}
/**
* Add content to output when operation was successful
*/
public function onSuccess() {
$this->getOutput()->addWikiMsg( 'oathauth-validatedoath' );
}
/**
* @return array
*/
protected function getDescriptors() {
$keyData = $this->getRequest()->getSessionData( 'oathauth_totp_key' ) ?? [];
$key = TOTPKey::newFromArray( $keyData );
if ( !$key instanceof TOTPKey ) {
$key = TOTPKey::newFromRandom();
$this->getRequest()->setSessionData(
'oathauth_totp_key',
$key->jsonSerialize()
);
}
$secret = $key->getSecret();
$issuer = $this->oathUser->getIssuer();
$account = $this->oathUser->getAccount();
$label = "{$issuer}:{$account}";
$qrcodeUrl = "otpauth://totp/"
. rawurlencode( $label )
. "?secret="
. rawurlencode( $secret )
. "&issuer="
. rawurlencode( $issuer );
$qrCode = Builder::create()
->writer( new SvgWriter() )
->writerOptions( [ SvgWriter::WRITER_OPTION_EXCLUDE_XML_DECLARATION => true ] )
->data( $qrcodeUrl )
->encoding( new Encoding( 'UTF-8' ) )
->errorCorrectionLevel( ErrorCorrectionLevel::High )
->roundBlockSizeMode( RoundBlockSizeMode::None )
->size( 256 )
->margin( 0 )
->build();
$now = wfTimestampNow();
$recoveryCodes = $this->getScratchTokensForDisplay( $key );
$this->getOutput()->addJsConfigVars( 'oathauth-recoverycodes', $this->createTextList( $recoveryCodes ) );
// messages used: oathauth-step1, oathauth-step2, oathauth-step3, oathauth-step4
return [
'app' => [
'type' => 'info',
'default' => $this->msg( 'oathauth-step1-test' )->parse(),
'raw' => true,
'section' => 'step1',
],
'qrcode' => [
'type' => 'info',
'default' =>
$this->msg( 'oathauth-step2-qrcode' )->escaped() . '<br/>'
. Html::element( 'img', [
'src' => $qrCode->getDataUri(),
'alt' => $this->msg( 'oathauth-qrcode-alt' ),
'width' => 256,
'height' => 256,
] ),
'raw' => true,
'section' => 'step2',
],
'manual' => [
'type' => 'info',
'label-message' => 'oathauth-step2alt',
'default' =>
'<strong>' . $this->msg( 'oathauth-secret' )->escaped() . '</strong><br/>'
. '<kbd>' . $this->getSecretForDisplay( $key ) . '</kbd><br/>'
. '<strong>' . $this->msg( 'oathauth-account' )->escaped() . '</strong><br/>'
. htmlspecialchars( $label ) . '<br/><br/>',
'raw' => true,
'section' => 'step2',
],
'scratchtokens' => [
'type' => 'info',
'default' =>
'<strong>' . $this->msg( 'oathauth-recoverycodes-important' )->escaped() . '</strong><br/>' .
$this->msg( 'oathauth-recoverycodes' )->escaped() . '<br/><br/>' .
$this->msg( 'rawmessage' )->rawParams(
$this->msg(
'oathauth-recoverytokens-createdat',
$this->getLanguage()->userTimeAndDate( $now, $this->oathUser->getUser() )
)->parse()
. $this->msg( 'word-separator' )->escaped()
. $this->msg( 'parentheses' )->rawParams( wfTimestamp( TS_ISO_8601, $now ) )->escaped()
) . '<br/>' .
$this->createResourceList( $recoveryCodes ) . '<br/>' .
'<strong>' . $this->msg( 'oathauth-recoverycodes-neveragain' )->escaped() . '</strong><br/>' .
$this->createCopyButton() .
$this->createDownloadLink( $recoveryCodes ),
'raw' => true,
'section' => 'step3',
],
'token' => [
'type' => 'text',
'default' => '',
'label-message' => 'oathauth-entertoken',
'name' => 'token',
'section' => 'step4',
'dir' => 'ltr',
'autocomplete' => 'one-time-code',
'spellcheck' => false,
]
];
}
/**
* @param array $resources
* @return string
*/
private function createResourceList( $resources ) {
$resourceList = '';
foreach ( $resources as $resource ) {
$resourceList .= Html::rawElement( 'li', [], Html::rawElement( 'kbd', [], $resource ) );
}
return Html::rawElement( 'ul', [], $resourceList );
}
/**
* @param array $items
*
* @return string
*/
private function createTextList( $items ) {
return "* " . implode( "\n* ", $items );
}
private function createDownloadLink( array $scratchTokensForDisplay ): string {
$icon = Html::element( 'span', [
'class' => [ 'mw-oathauth-recoverycodes-download-icon', 'cdx-button__icon' ],
'aria-hidden' => 'true',
] );
return Html::rawElement(
'a',
[
'href' => 'data:text/plain;charset=utf-8,'
// https://bugzilla.mozilla.org/show_bug.cgi?id=1895687
. rawurlencode( implode( PHP_EOL, $scratchTokensForDisplay ) ),
'download' => 'recovery-codes.txt',
'class' => [
'mw-oathauth-recoverycodes-download',
'cdx-button', 'cdx-button--fake-button', 'cdx-button--fake-button--enabled',
],
],
$icon . $this->msg( 'oathauth-recoverycodes-download' )->escaped()
);
}
private function createCopyButton(): string {
return Html::rawElement( 'button', [
'class' => 'cdx-button mw-oathauth-recoverycodes-copy-button',
'type' => 'button',
], Html::element( 'span', [
'class' => 'cdx-button__icon',
'aria-hidden' => 'true',
] ) . $this->msg( 'oathauth-recoverycodes-copy' )->escaped()
);
}
/**
* Retrieve the current secret for display purposes
*
* The characters of the token are split in groups of 4
*
* @param TOTPKey $key
* @return string
*/
protected function getSecretForDisplay( TOTPKey $key ) {
return $this->tokenFormatterFunction( $key->getSecret() );
}
/**
* Retrieve current recovery codes for display purposes
*
* The characters of the token are split in groups of 4
*
* @param TOTPKey $key
* @return string[]
*/
protected function getScratchTokensForDisplay( TOTPKey $key ) {
return array_map( [ $this, 'tokenFormatterFunction' ], $key->getScratchTokens() );
}
/**
* Formats a key or recovery code by creating groups of 4 separated by space characters
*
* @param string $token Token to format
* @return string The token formatted for display
*/
private function tokenFormatterFunction( $token ) {
return implode( ' ', str_split( $token, 4 ) );
}
/**
* @param array $formData
* @return array|bool
* @throws ConfigException
* @throws MWException
*/
public function onSubmit( array $formData ) {
$keyData = $this->getRequest()->getSessionData( 'oathauth_totp_key' ) ?? [];
$key = TOTPKey::newFromArray( $keyData );
if ( !$key instanceof TOTPKey ) {
return [ 'oathauth-invalidrequest' ];
}
if ( $key->isScratchToken( $formData['token'] ) ) {
// A recovery code is not allowed for enrollment
LoggerFactory::getInstance( 'authentication' )->info(
'OATHAuth {user} attempted to enable 2FA using a recovery code from {clientip}', [
'user' => $this->getUser()->getName(),
'clientip' => $this->getRequest()->getIP(),
]
);
return [ 'oathauth-noscratchforvalidation' ];
}
if ( !$key->verify( [ 'token' => $formData['token'] ], $this->oathUser ) ) {
LoggerFactory::getInstance( 'authentication' )->info(
'OATHAuth {user} failed to provide a correct token while enabling 2FA from {clientip}', [
'user' => $this->getUser()->getName(),
'clientip' => $this->getRequest()->getIP(),
]
);
return [ 'oathauth-failedtovalidateoath' ];
}
$this->getRequest()->setSessionData( 'oathauth_totp_key', null );
$this->oathRepo->createKey(
$this->oathUser,
$this->module,
$key->jsonSerialize(),
$this->getRequest()->getIP()
);
return true;
}
}