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<?php |
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namespace SimpleSAML\Module\webauthn\Controller; |
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use SimpleSAML\Auth; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\Error; |
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use SimpleSAML\Logger; |
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use SimpleSAML\Module; |
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use SimpleSAML\Session; |
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use SimpleSAML\Utils; |
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use SimpleSAML\XHTML\Template; |
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use Symfony\Component\HttpFoundation\Request; |
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/** |
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* Controller class for the webauthn module. |
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* |
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* This class serves the different views available in the module. |
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* |
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* @package SimpleSAML\Module\webauthn |
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*/ |
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class WebAuthn |
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{ |
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/** @var \SimpleSAML\Configuration */ |
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protected $config; |
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/** @var \SimpleSAML\Session */ |
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protected $session; |
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/** |
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* @var \SimpleSAML\Auth\State|string |
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* @psalm-var \SimpleSAML\Auth\State|class-string |
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*/ |
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protected $authState = Auth\State::class; |
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/** |
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* @var \SimpleSAML\Logger|string |
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* @psalm-var \SimpleSAML\Logger|class-string |
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*/ |
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protected $logger = Logger::class; |
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/** |
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* Controller constructor. |
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* |
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* It initializes the global configuration and session for the controllers implemented here. |
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* |
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* @param \SimpleSAML\Configuration $config The configuration to use by the controllers. |
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* @param \SimpleSAML\Session $session The session to use by the controllers. |
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* |
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* @throws \Exception |
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*/ |
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public function __construct( |
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Configuration $config, |
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Session $session |
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) { |
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$this->config = $config; |
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$this->session = $session; |
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} |
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/** |
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* Inject the \SimpleSAML\Auth\State dependency. |
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* |
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* @param \SimpleSAML\Auth\State $authState |
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*/ |
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public function setAuthState(Auth\State $authState): void |
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{ |
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$this->authState = $authState; |
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} |
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/** |
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* Inject the \SimpleSAML\Logger dependency. |
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* |
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* @param \SimpleSAML\Logger $logger |
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*/ |
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public function setLogger(Logger $logger): void |
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{ |
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$this->logger = $logger; |
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} |
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/** |
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* @param \Symfony\Component\HttpFoundation\Request $request |
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* @return \SimpleSAML\XHTML\Template A Symfony Response-object. |
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*/ |
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public function main(Request $request): Template |
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{ |
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$this->logger::info('FIDO2 - Accessing WebAuthn interface'); |
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$stateId = $request->request->get('StateId'); |
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if ($stateId === null) { |
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throw new Error\BadRequest('Missing required StateId query parameter.'); |
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} |
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/** @var array $state */ |
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$state = $this->authState::loadState($stateId, 'webauthn:request'); |
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// Make, populate and layout consent form |
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$t = new Template($this->config, 'webauthn:authentication.twig'); |
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$t->data['UserID'] = $state['FIDO2Username']; |
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$t->data['FIDO2Tokens'] = $state['FIDO2Tokens']; |
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$challenge = str_split($state['FIDO2SignupChallenge'], 2); |
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$username = str_split( |
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hash('sha512', $state['FIDO2Username'] . '|' . Utils\Config::getSecretSalt() . '|' . $state['Source']['entityid']), |
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2 |
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); |
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$challengeEncoded = []; |
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foreach ($challenge as $oneChar) { |
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$challengeEncoded[] = hexdec($oneChar); |
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} |
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$credentialIdEncoded = []; |
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foreach ($state['FIDO2Tokens'] as $number => $token) { |
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$idSplit = str_split($token[0], 2); |
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$credentialIdEncoded[$number] = []; |
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foreach ($idSplit as $credIdBlock) { |
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$credentialIdEncoded[$number][] = hexdec($credIdBlock); |
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} |
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} |
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$usernameEncoded = []; |
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foreach ($username as $oneChar) { |
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$usernameEncoded[] = hexdec($oneChar); |
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} |
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$frontendData = []; |
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$frontendData['challengeEncoded'] = $challengeEncoded; |
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$frontendData['state'] = []; |
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foreach (['Source', 'FIDO2Scope','FIDO2Username','FIDO2Displayname','requestTokenModel'] as $stateItem) { |
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$frontendData['state'][$stateItem] = $state[$stateItem]; |
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} |
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$t->data['showExitButton'] = !array_key_exists('Registration', $state); |
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$frontendData['usernameEncoded'] = $usernameEncoded; |
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$frontendData['attestation'] = $state['requestTokenModel'] ? "indirect" : "none"; |
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$frontendData['credentialIdEncoded'] = $credentialIdEncoded; |
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$t->data['frontendData'] = json_encode($frontendData); |
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$t->data['FIDO2AuthSuccessful'] = $state['FIDO2AuthSuccessful']; |
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if ( |
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count($state['FIDO2Tokens']) == 0 || |
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($state['FIDO2WantsRegister'] === true && $state['FIDO2AuthSuccessful'] !== false) |
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) { |
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$t->data['regURL'] = Module::getModuleURL('webauthn/regprocess.php?StateId=' . urlencode($stateId)); |
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$t->data['delURL'] = Module::getModuleURL('webauthn/managetoken.php?StateId=' . urlencode($stateId)); |
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} |
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$t->data['authForm'] = ""; |
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if ( |
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count($state['FIDO2Tokens']) > 0 && |
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($state['FIDO2WantsRegister'] !== true || $state['FIDO2AuthSuccessful'] === false) |
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) { |
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$t->data['authURL'] = Module::getModuleURL('webauthn/authprocess.php?StateId=' . urlencode($stateId)); |
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} |
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// dynamically generate the JS code needed for token registration |
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return $t; |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-webauthn
