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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\WebAuthn; |
| 4 | |
| 5 | use Base64Url\Base64Url; |
| 6 | use Generator; |
| 7 | use MediaWiki\Config\ConfigException; |
| 8 | use MediaWiki\Extension\OATHAuth\OATHAuthServices; |
| 9 | use MediaWiki\Extension\OATHAuth\OATHUser; |
| 10 | use MediaWiki\Extension\WebAuthn\Key\WebAuthnKey; |
| 11 | use Webauthn\PublicKeyCredentialSource; |
| 12 | use Webauthn\PublicKeyCredentialSourceRepository; |
| 13 | use Webauthn\PublicKeyCredentialUserEntity; |
| 14 | |
| 15 | class WebAuthnCredentialRepository implements PublicKeyCredentialSourceRepository { |
| 16 | private OATHUser $oauthUser; |
| 17 | |
| 18 | public function __construct( OATHUser $user ) { |
| 19 | $this->oauthUser = $user; |
| 20 | } |
| 21 | |
| 22 | /** |
| 23 | * @return Generator<WebAuthnKey> |
| 24 | */ |
| 25 | private function getWebAuthnKeys(): Generator { |
| 26 | foreach ( $this->oauthUser->getKeys() as $key ) { |
| 27 | if ( !$key instanceof WebAuthnKey ) { |
| 28 | continue; |
| 29 | } |
| 30 | |
| 31 | yield $key; |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @param bool $lc Whether to return the names in lowercase form |
| 37 | * @return array |
| 38 | */ |
| 39 | public function getFriendlyNames( $lc = false ) { |
| 40 | $friendlyNames = []; |
| 41 | foreach ( $this->getWebAuthnKeys() as $key ) { |
| 42 | $friendlyName = $key->getFriendlyName(); |
| 43 | if ( $lc ) { |
| 44 | $friendlyName = strtolower( $friendlyName ); |
| 45 | } |
| 46 | $friendlyNames[] = $friendlyName; |
| 47 | } |
| 48 | return $friendlyNames; |
| 49 | } |
| 50 | |
| 51 | public function findOneByCredentialId( |
| 52 | string $publicKeyCredentialId |
| 53 | ): ?PublicKeyCredentialSource { |
| 54 | foreach ( $this->getWebAuthnKeys() as $key ) { |
| 55 | if ( $key->getAttestedCredentialData()->getCredentialId() === $publicKeyCredentialId ) { |
| 56 | return $this->credentialSourceFromKey( $key ); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | return null; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * @param PublicKeyCredentialUserEntity $publicKeyCredentialUserEntity |
| 65 | * @return PublicKeyCredentialSource[] |
| 66 | */ |
| 67 | public function findAllForUserEntity( |
| 68 | PublicKeyCredentialUserEntity $publicKeyCredentialUserEntity |
| 69 | ): array { |
| 70 | $res = []; |
| 71 | foreach ( $this->getWebAuthnKeys() as $key ) { |
| 72 | if ( $key->getUserHandle() === $publicKeyCredentialUserEntity->getId() ) { |
| 73 | $res[] = $this->credentialSourceFromKey( $key ); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | return $res; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @param PublicKeyCredentialSource $publicKeyCredentialSource |
| 82 | * @throws ConfigException |
| 83 | */ |
| 84 | public function saveCredentialSource( |
| 85 | PublicKeyCredentialSource $publicKeyCredentialSource |
| 86 | ): void { |
| 87 | $this->updateCounterFor( |
| 88 | $publicKeyCredentialSource->getPublicKeyCredentialId(), |
| 89 | $publicKeyCredentialSource->getCounter() |
| 90 | ); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * @param WebAuthnKey $key |
| 95 | * @return PublicKeyCredentialSource |
| 96 | */ |
| 97 | private function credentialSourceFromKey( WebAuthnKey $key ) { |
| 98 | return PublicKeyCredentialSource::createFromArray( [ |
| 99 | 'userHandle' => Base64Url::encode( $key->getUserHandle() ), |
| 100 | 'aaguid' => $key->getAttestedCredentialData()->getAaguid()->toString(), |
| 101 | 'friendlyName' => $key->getFriendlyName(), |
| 102 | 'publicKeyCredentialId' => Base64Url::encode( |
| 103 | $key->getAttestedCredentialData()->getCredentialId() |
| 104 | ), |
| 105 | 'credentialPublicKey' => Base64Url::encode( |
| 106 | (string)$key->getAttestedCredentialData()->getCredentialPublicKey() |
| 107 | ), |
| 108 | 'counter' => $key->getSignCounter(), |
| 109 | 'userMWId' => $this->oauthUser->getUser()->getId(), |
| 110 | 'type' => $key->getType(), |
| 111 | 'transports' => $key->getTransports(), |
| 112 | 'attestationType' => $key->getAttestationType(), |
| 113 | 'trustPath' => $key->getTrustPath()->jsonSerialize() |
| 114 | ] ); |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Set a new sign counter-value for the credential |
| 119 | * |
| 120 | * @param string $credentialId |
| 121 | * @param int $newCounter |
| 122 | */ |
| 123 | private function updateCounterFor( string $credentialId, int $newCounter ): void { |
| 124 | foreach ( $this->getWebAuthnKeys() as $key ) { |
| 125 | if ( $key->getAttestedCredentialData()->getCredentialId() !== $credentialId ) { |
| 126 | continue; |
| 127 | } |
| 128 | |
| 129 | $key->setSignCounter( $newCounter ); |
| 130 | |
| 131 | OATHAuthServices::getInstance() |
| 132 | ->getUserRepository() |
| 133 | ->updateKey( |
| 134 | $this->oauthUser, |
| 135 | $key |
| 136 | ); |
| 137 | } |
| 138 | } |
| 139 | } |