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<?php |
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namespace Erdemkeren\TemporaryAccess; |
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use Carbon\Carbon; |
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use Erdemkeren\TemporaryAccess\Token\TokenInterface; |
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use Erdemkeren\TemporaryAccess\Contracts\AccessTokenInterface; |
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use Erdemkeren\TemporaryAccess\Contracts\AccessTokenRepositoryInterface; |
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use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract; |
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use Erdemkeren\TemporaryAccess\Token\TokenGenerator\TokenGeneratorInterface; |
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final class TemporaryAccessService |
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{ |
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/** |
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* The access token repository implementation. |
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* |
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* @var AccessTokenRepositoryInterface |
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*/ |
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private $repository; |
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/** |
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* The token generator implementation. |
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* |
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* @var TokenGeneratorInterface |
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*/ |
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private $tokenGenerator; |
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/** |
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* TemporaryAccessService constructor. |
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* |
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* @param AccessTokenRepositoryInterface $repository The access token repository implementation. |
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* @param TokenGeneratorInterface $tokenGenerator The token generator implementation. |
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*/ |
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public function __construct(AccessTokenRepositoryInterface $repository, TokenGeneratorInterface $tokenGenerator) |
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{ |
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$this->repository = $repository; |
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$this->tokenGenerator = $tokenGenerator; |
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} |
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/** |
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* Retrieve an access token from the storage by the actual token. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string|TokenInterface $encryptedText The token of the authenticatable. |
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* |
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* @return null|AccessTokenInterface |
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*/ |
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public function retrieve(AuthenticatableContract $authenticatable, $encryptedText) |
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{ |
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$authenticatableIdentifier = $authenticatable->getAuthIdentifier(); |
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return $this->retrieveFromRepository($authenticatableIdentifier, (string) $encryptedText); |
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} |
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/** |
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* Retrieve an access token from the storage by the plain token. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string $plainText The token of the authenticatable. |
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* |
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* @return null|AccessTokenInterface |
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*/ |
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public function retrieveUsingPlainText(AuthenticatableContract $authenticatable, $plainText) |
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{ |
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if (! $plainText instanceof TokenInterface) { |
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$plainText = $this->makeTokenFromPlainText($plainText); |
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} |
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return $this->retrieve($authenticatable, $plainText); |
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} |
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/** |
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* Determine if an access token exists and is valid. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string|TokenInterface $encryptedText The encrypted token of the authenticatable. |
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* |
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* @return bool |
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*/ |
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public function check(AuthenticatableContract $authenticatable, $encryptedText) |
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{ |
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return (bool) $this->retrieve($authenticatable, $encryptedText); |
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} |
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/** |
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* Determine if an access token exists and is valid. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string $plainText The plain token of the authenticatable. |
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* |
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* @return bool |
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*/ |
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public function checkUsingPlainText(AuthenticatableContract $authenticatable, $plainText) |
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{ |
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$token = $this->makeTokenFromPlainText($plainText); |
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return $this->check($authenticatable, $token); |
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} |
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/** |
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* Determine if an access token record exists and prolong the expire date if so. |
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* If no prolong time given, we will reset the original expire time. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string|TokenInterface $encryptedText The token of the authenticatable. |
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* @param int|null $prolong The prolong time in minutes. |
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* |
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* @return bool|AccessTokenInterface |
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*/ |
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public function checkAndProlong(AuthenticatableContract $authenticatable, $encryptedText, $prolong = null) |
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{ |
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if (! $accessToken = $this->retrieve($authenticatable, $encryptedText)) { |
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return false; |
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} |
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return $this->prolongAndUpdateAccessToken($accessToken, $prolong); |
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} |
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/** |
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* Determine if an access token record exists and prolong the expire date if so. |
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* If no prolong time given, we will reset the original expire time. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param string $plainText The token of the authenticatable. |
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* @param int|null $prolong The prolong time in minutes. |
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* |
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* @return bool|AccessTokenInterface |
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*/ |
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public function checkUsingPlainTextAndProlong(AuthenticatableContract $authenticatable, $plainText, $prolong = null) |
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{ |
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$token = $this->makeTokenFromPlainText($plainText); |
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return $this->checkAndProlong($authenticatable, $token, $prolong); |
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} |
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/** |
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* Generate a new access token in the storage and get the token. |
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* |
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* @param AuthenticatableContract $authenticatable The authenticatable who owns the token. |
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* @param Carbon|null $expiresAt The optional expire date of the access token. |
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* |
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* @return AccessTokenInterface |
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*/ |
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public function generate(AuthenticatableContract $authenticatable, Carbon $expiresAt = null) |
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{ |
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$token = $this->tokenGenerator->generate(); |
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$authenticatableId = $authenticatable->getAuthIdentifier(); |
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$expiresAt = $expiresAt ? (string) $expiresAt : null; |
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$payload = (array) $this->repository->store($authenticatableId, (string) $token, $expiresAt); |
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return $this->makeAccessToken($token, $payload); |
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} |
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/** |
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* Update an access token in the storage. |
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* |
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* @param AccessTokenInterface $accessToken The access token to be updated. |
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* |
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* @return bool |
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*/ |
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public function update(AccessTokenInterface $accessToken) |
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{ |
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$token = (string) $accessToken; |
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$expiresAt = (string) $accessToken->expiresAt(); |
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$authenticatableId = $accessToken->authenticatableId(); |
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return $this->repository->update($authenticatableId, $token, $expiresAt); |
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} |
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/** |
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* Revive an token from the given plain text. |
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* |
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* @param string $plainText The plain text to be converted back to token instance. |
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* |
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* @return TokenInterface |
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*/ |
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public function makeTokenFromPlainText($plainText) |
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{ |
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return $this->tokenGenerator->fromPlain($plainText); |
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} |
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/** |
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* Revive an token from the given plain text. |
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* |
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* @param string $encryptedText The encrypted token to be converted back to token instance. |
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* |
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* @return TokenInterface |
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*/ |
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public function makeTokenFromEncryptedText($encryptedText) |
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{ |
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return $this->tokenGenerator->fromEncrypted($encryptedText); |
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} |
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/** |
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* Retrieve the first resource by the given attributes. |
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* |
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* @param array $queryParams The key - value pairs to match. |
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* @param array $attributes The attributes to be returned from the storage. |
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* |
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* @return AccessTokenInterface|null |
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*/ |
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public function retrieveByAttributes(array $queryParams, array $attributes = ['*']) |
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{ |
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if (! $attributes = $this->repository->retrieveByAttributes($queryParams, $attributes)) { |
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return; |
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} |
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return $attributes ? $this->makeAccessToken((array) $attributes) : null; |
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} |
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/** |
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* Delete the given access token from the storage. |
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* |
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* @param AccessTokenInterface|string $accessToken The access token or the encrypted text to be deleted. |
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* |
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* @return bool |
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*/ |
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public function delete($accessToken) |
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{ |
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return (bool) $this->repository->delete((string) $accessToken); |
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} |
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/** |
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* Delete the expired access tokens from the storage. |
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* |
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* @return void |
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*/ |
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public function deleteExpired() |
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{ |
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$this->repository->deleteExpired(); |
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} |
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/** |
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* Retrieve an access token from the storage. |
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* |
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* @param int $authenticatableId |
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* @param string $encryptedText |
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* |
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* @return GenericAccessToken|null |
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*/ |
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private function retrieveFromRepository($authenticatableId, $encryptedText) |
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{ |
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if (! $attributes = $this->repository->retrieve($authenticatableId, $encryptedText)) { |
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return; |
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} |
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return $this->makeAccessToken((array) $attributes); |
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} |
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/** |
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* Prolong the access token then update it in the storage. |
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* |
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* @param AccessTokenInterface $accessToken |
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* @param int|null $prolong |
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* |
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* @return bool|AccessTokenInterface |
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*/ |
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private function prolongAndUpdateAccessToken(AccessTokenInterface $accessToken, $prolong = null) |
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{ |
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$accessToken = $this->prolongAccessToken($accessToken, $prolong); |
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if ($this->update($accessToken)) { |
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return $accessToken; |
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} |
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return false; |
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} |
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/** |
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* Prolong an access token. |
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* |
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* @param AccessTokenInterface $accessToken |
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* @param int|null $prolong |
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* |
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* @return AccessTokenInterface |
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*/ |
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private function prolongAccessToken(AccessTokenInterface $accessToken, $prolong = null) |
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{ |
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$prolong = $prolong ? $prolong * 60 : $this->getNow()->diffInSeconds($accessToken->createdAt()); |
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return $accessToken->prolong($prolong); |
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} |
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/** |
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* Get a new access token instance with the given attributes. |
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* |
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* @param array|TokenInterface $token |
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* @param array $attributes |
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* |
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* @return GenericAccessToken |
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*/ |
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private function makeAccessToken($token, array $attributes = []) |
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{ |
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if (! $token instanceof TokenInterface) { |
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$attributes = $token; |
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$token = $this->makeTokenFromEncryptedText(array_pull($attributes, 'token')); |
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} |
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return new GenericAccessToken($token, $attributes); |
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} |
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/** |
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* Get the current UNIX timestamp. |
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* |
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* @return Carbon |
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*/ |
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private function getNow() |
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{ |
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return Carbon::now(); |
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} |
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} |
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