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<?php |
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/** |
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* @author Sebastiano Degan <[email protected]> |
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* @copyright Copyright (c) Alex Bilbie |
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* @license http://mit-license.org/ |
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* |
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* @link https://github.com/thephpleague/oauth2-server |
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*/ |
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namespace League\OAuth2\Server\RedirectUriValidators; |
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class RedirectUriValidator implements RedirectUriValidatorInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $allowedRedirectUris; |
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/** |
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* New validator instance for the given uri |
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* |
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* @param string|array $allowedRedirectUris |
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*/ |
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public function __construct($allowedRedirectUri) |
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{ |
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if (\is_string($allowedRedirectUri)) { |
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$this->allowedRedirectUris = [$allowedRedirectUri]; |
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} elseif (\is_array($allowedRedirectUri)) { |
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$this->allowedRedirectUris = $allowedRedirectUri; |
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} else { |
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$this->allowedRedirectUris = []; |
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} |
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} |
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/** |
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* Validates the redirect uri. |
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* |
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* @param string $redirectUri |
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* |
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* @return bool Return true if valid, false otherwise |
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*/ |
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public function validateRedirectUri($redirectUri) |
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{ |
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if ($this->isLoopbackUri($redirectUri)) { |
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return $this->matchUriExcludingPort($redirectUri); |
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} |
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return $this->matchExactUri($redirectUri); |
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} |
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/** |
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* According to section 7.3 of rfc8252, loopback uris are: |
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* - "http://127.0.0.1:{port}/{path}" for IPv4 |
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* - "http://[::1]:{port}/{path}" for IPv6 |
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* |
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* @param string $redirectUri |
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* |
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* @return bool |
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*/ |
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private function isLoopbackUri($redirectUri) |
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{ |
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$parsedUrl = \parse_url($redirectUri); |
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return $parsedUrl['scheme'] === 'http' |
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&& (\in_array($parsedUrl['host'], ['127.0.0.1', '[::1]'], true)); |
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} |
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/** |
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* Find an exact match among allowed uris |
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* |
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* @param string $redirectUri |
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* |
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* @return bool Return true if an exact match is found, false otherwise |
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*/ |
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private function matchExactUri($redirectUri) |
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{ |
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return \in_array($redirectUri, $this->allowedRedirectUris, true); |
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} |
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/** |
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* Find a match among allowed uris, allowing for different port numbers |
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* |
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* @param string $redirectUri |
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* |
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* @return bool Return true if a match is found, false otherwise |
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*/ |
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private function matchUriExcludingPort($redirectUri) |
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{ |
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$parsedUrl = $this->parseUrlAndRemovePort($redirectUri); |
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foreach ($this->allowedRedirectUris as $allowedRedirectUri) { |
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if ($parsedUrl === $this->parseUrlAndRemovePort($allowedRedirectUri)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Parse an url like \parse_url, excluding the port |
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* |
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* @param string $url |
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* |
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* @return array |
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*/ |
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private function parseUrlAndRemovePort($url) |
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{ |
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$parsedUrl = \parse_url($url); |
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unset($parsedUrl['port']); |
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return $parsedUrl; |
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} |
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} |
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thephpleague /
oauth2-server
