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<?php |
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namespace Firesphere\YubiAuth\Providers; |
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use DateTime; |
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use Firesphere\BootstrapMFA\Providers\BootstrapMFAProvider; |
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use Firesphere\BootstrapMFA\Providers\MFAProvider; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\ORM\DataList; |
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use SilverStripe\ORM\ValidationResult; |
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use SilverStripe\Security\Member; |
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/** |
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* Class YubikeyAuthProvider |
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* |
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* @package Firesphere\YubiAuth |
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*/ |
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class YubikeyAuthProvider extends BootstrapMFAProvider implements MFAProvider |
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{ |
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use Configurable; |
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/** |
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* @param Member $member |
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* @return ValidationResult|Member |
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*/ |
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public function checkNoYubiAttempts(Member $member) |
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{ |
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$noYubiLogins = $this->checkNoYubiLogins($member); |
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if ($noYubiLogins instanceof Member) { |
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return $this->checkNoYubiDays($member); |
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} |
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return $noYubiLogins; |
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} |
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/** |
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* Check if a member is allowed to login without a yubikey |
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* |
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* @param Member $member |
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* @return ValidationResult|Member |
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*/ |
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public function checkNoYubiLogins(Member $member) |
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{ |
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$maxNoYubi = static::config()->get('MaxNoYubiLogin'); |
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if ($maxNoYubi > 0 && $maxNoYubi <= $member->NoYubikeyCount) { |
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$validationResult = ValidationResult::create(); |
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$validationResult->addError( |
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_t( |
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'YubikeyAuthenticator.ERRORMAXYUBIKEY', |
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'Maximum login without yubikey exceeded' |
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) |
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); |
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$member->registerFailedLogin(); |
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return $validationResult; |
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} |
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return $member; |
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} |
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/** |
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* Check if the member is allowed login after so many days of not using a yubikey |
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* |
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* @param Member $member |
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* @return ValidationResult|Member |
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*/ |
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public function checkNoYubiDays(Member $member) |
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{ |
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$date1 = new DateTime($member->Created); |
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$date2 = new DateTime(date('Y-m-d')); |
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$diff = $date2->diff($date1)->format("%a"); |
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$maxNoYubiDays = static::config()->get('MaxNoYubiLoginDays'); |
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if ($maxNoYubiDays > 0 && $diff >= $maxNoYubiDays) { |
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$validationResult = ValidationResult::create(); |
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$validationResult->addError( |
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_t( |
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'YubikeyAuthenticator.ERRORMAXYUBIKEYDAYS', |
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'Maximum days without yubikey exceeded' |
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) |
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); |
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$member->registerFailedLogin(); |
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return $validationResult; |
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} |
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return $member; |
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} |
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/** |
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* Check if the yubikey is unique and linked to the member trying to logon |
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* |
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* @param Member $member |
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* @param string $yubiFingerprint |
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* @return ValidationResult |
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*/ |
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public function validateToken(Member $member, $yubiFingerprint) |
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{ |
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/** @var DataList|Member[] $yubikeyMembers */ |
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$yubikeyMembers = Member::get()->filter(['Yubikey' => $yubiFingerprint]); |
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/** @var ValidationResult $validationResult */ |
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$validationResult = ValidationResult::create(); |
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$this->validateMemberCount($member, $yubikeyMembers, $validationResult); |
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// Yubikeys have a unique fingerprint, if we find a different member with this yubikey ID, something's wrong |
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$this->validateMemberID($member, $yubikeyMembers, $validationResult); |
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// If the member has a yubikey ID set, compare it to the fingerprint. |
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$this->validateFingerprint($member, $yubiFingerprint, $validationResult); |
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return $validationResult; |
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} |
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/** |
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* @param Member $member |
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* @param DataList|Member[] $yubikeyMembers |
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* @param ValidationResult $validationResult |
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*/ |
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protected function validateMemberCount( |
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Member $member, |
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DataList $yubikeyMembers, |
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ValidationResult $validationResult |
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) { |
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if ($yubikeyMembers->count() > 1) { |
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$validationResult->addError( |
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_t( |
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'YubikeyAuthenticator.DUPLICATE', |
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'Yubikey is duplicate, contact your administrator as soon as possible!' |
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) |
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); |
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$member->registerFailedLogin(); |
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} |
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} |
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/** |
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* @param Member $member |
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* @param DataList|Member[] $yubikeyMembers |
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* @param ValidationResult $validationResult |
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*/ |
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protected function validateMemberID(Member $member, DataList $yubikeyMembers, ValidationResult $validationResult) |
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{ |
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if ((int)$yubikeyMembers->count() === 1 && (int)$yubikeyMembers->first()->ID !== (int)$member->ID) { |
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$validationResult->addError(_t('YubikeyAuthenticator.NOMATCHID', 'Yubikey does not match found member ID')); |
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$member->registerFailedLogin(); |
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} |
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} |
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/** |
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* @param Member $member |
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* @param $fingerPrint |
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* @param ValidationResult $validationResult |
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*/ |
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protected function validateFingerprint(Member $member, $fingerPrint, ValidationResult $validationResult) |
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{ |
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if ($member->Yubikey && strpos($fingerPrint, $member->Yubikey) !== 0) { |
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$member->registerFailedLogin(); |
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$validationResult->addError( |
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_t( |
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'YubikeyAuthenticator.NOMATCH', |
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'Yubikey fingerprint does not match found member' |
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) |
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); |
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} |
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} |
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} |
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Firesphere /
silverstripe-yubiauth
