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| -rw-r--r-- | vendor/league/oauth2-client/src/Provider/AbstractProvider.php | 399 |
diff --git a/vendor/league/oauth2-client/src/Provider/AbstractProvider.php b/vendor/league/oauth2-client/src/Provider/AbstractProvider.php new file mode 100644 index 0000000..a200013 --- /dev/null +++ b/vendor/league/oauth2-client/src/Provider/AbstractProvider.php @@ -0,0 +1,399 @@ +<?php + +namespace League\OAuth2\Client\Provider; + +use Closure; +use Guzzle\Http\Exception\BadResponseException; +use Guzzle\Service\Client as GuzzleClient; +use League\OAuth2\Client\Exception\IDPException as IDPException; +use League\OAuth2\Client\Grant\GrantInterface; +use League\OAuth2\Client\Token\AccessToken as AccessToken; + +abstract class AbstractProvider implements ProviderInterface +{ + public $clientId = ''; + + public $clientSecret = ''; + + public $redirectUri = ''; + + public $state; + + public $name; + + public $uidKey = 'uid'; + + public $scopes = []; + + public $method = 'post'; + + public $scopeSeparator = ','; + + public $responseType = 'json'; + + public $headers = []; + + public $authorizationHeader; + + /** + * @var GuzzleClient + */ + protected $httpClient; + + protected $redirectHandler; + + /** + * @var int This represents: PHP_QUERY_RFC1738, which is the default value for php 5.4 + * and the default encoding type for the http_build_query setup + */ + protected $httpBuildEncType = 1; + + public function __construct($options = []) + { + foreach ($options as $option => $value) { + if (property_exists($this, $option)) { + $this->{$option} = $value; + } + } + + $this->setHttpClient(new GuzzleClient()); + } + + public function setHttpClient(GuzzleClient $client) + { + $this->httpClient = $client; + + return $this; + } + + public function getHttpClient() + { + $client = clone $this->httpClient; + + return $client; + } + + /** + * Get the URL that this provider uses to begin authorization. + * + * @return string + */ + abstract public function urlAuthorize(); + + /** + * Get the URL that this provider uses to request an access token. + * + * @return string + */ + abstract public function urlAccessToken(); + + /** + * Get the URL that this provider uses to request user details. + * + * Since this URL is typically an authorized route, most providers will require you to pass the access_token as + * a parameter to the request. For example, the google url is: + * + * 'https://www.googleapis.com/oauth2/v1/userinfo?alt=json&access_token='.$token + * + * @param AccessToken $token + * @return string + */ + abstract public function urlUserDetails(AccessToken $token); + + /** + * Given an object response from the server, process the user details into a format expected by the user + * of the client. + * + * @param object $response + * @param AccessToken $token + * @return mixed + */ + abstract public function userDetails($response, AccessToken $token); + + public function getScopes() + { + return $this->scopes; + } + + public function setScopes(array $scopes) + { + $this->scopes = $scopes; + } + + public function getAuthorizationUrl($options = []) + { + $this->state = isset($options['state']) ? $options['state'] : md5(uniqid(rand(), true)); + + $params = [ + 'client_id' => $this->clientId, + 'redirect_uri' => $this->redirectUri, + 'state' => $this->state, + 'scope' => is_array($this->scopes) ? implode($this->scopeSeparator, $this->scopes) : $this->scopes, + 'response_type' => isset($options['response_type']) ? $options['response_type'] : 'code', + 'approval_prompt' => isset($options['approval_prompt']) ? $options['approval_prompt'] : 'auto', + ]; + + return $this->urlAuthorize().'?'.$this->httpBuildQuery($params, '', '&'); + } + + // @codeCoverageIgnoreStart + public function authorize($options = []) + { + $url = $this->getAuthorizationUrl($options); + if ($this->redirectHandler) { + $handler = $this->redirectHandler; + return $handler($url); + } + // @codeCoverageIgnoreStart + header('Location: ' . $url); + exit; + // @codeCoverageIgnoreEnd + } + + public function getAccessToken($grant = 'authorization_code', $params = []) + { + if (is_string($grant)) { + // PascalCase the grant. E.g: 'authorization_code' becomes 'AuthorizationCode' + $className = str_replace(' ', '', ucwords(str_replace(['-', '_'], ' ', $grant))); + $grant = 'League\\OAuth2\\Client\\Grant\\'.$className; + if (! class_exists($grant)) { + throw new \InvalidArgumentException('Unknown grant "'.$grant.'"'); + } + $grant = new $grant(); + } elseif (! $grant instanceof GrantInterface) { + $message = get_class($grant).' is not an instance of League\OAuth2\Client\Grant\GrantInterface'; + throw new \InvalidArgumentException($message); + } + + $defaultParams = [ + 'client_id' => $this->clientId, + 'client_secret' => $this->clientSecret, + 'redirect_uri' => $this->redirectUri, + 'grant_type' => $grant, + ]; + + $requestParams = $grant->prepRequestParams($defaultParams, $params); + + try { + switch (strtoupper($this->method)) { + case 'GET': + // @codeCoverageIgnoreStart + // No providers included with this library use get but 3rd parties may + $client = $this->getHttpClient(); + $client->setBaseUrl($this->urlAccessToken() . '?' . $this->httpBuildQuery($requestParams, '', '&')); + $request = $client->get(null, $this->getHeaders(), $requestParams)->send(); + $response = $request->getBody(); + break; + // @codeCoverageIgnoreEnd + case 'POST': + $client = $this->getHttpClient(); + $client->setBaseUrl($this->urlAccessToken()); + $request = $client->post(null, $this->getHeaders(), $requestParams)->send(); + $response = $request->getBody(); + break; + // @codeCoverageIgnoreStart + default: + throw new \InvalidArgumentException('Neither GET nor POST is specified for request'); + // @codeCoverageIgnoreEnd + } + } catch (BadResponseException $e) { + // @codeCoverageIgnoreStart + $response = $e->getResponse()->getBody(); + // @codeCoverageIgnoreEnd + } + + $result = $this->prepareResponse($response); + + if (isset($result['error']) && ! empty($result['error'])) { + // @codeCoverageIgnoreStart + throw new IDPException($result); + // @codeCoverageIgnoreEnd + } + + $result = $this->prepareAccessTokenResult($result); + + return $grant->handleResponse($result); + } + + /** + * Prepare the response, parsing according to configuration and returning + * the response as an array. + * + * @param string $response + * @return array + */ + protected function prepareResponse($response) + { + $result = []; + + switch ($this->responseType) { + case 'json': + $json = json_decode($response, true); + + if (JSON_ERROR_NONE === json_last_error()) { + $result = $json; + } + + break; + case 'string': + parse_str($response, $result); + break; + } + + return $result; + } + + /** + * Prepare the access token response for the grant. Custom mapping of + * expirations, etc should be done here. + * + * @param array $result + * @return array + */ + protected function prepareAccessTokenResult(array $result) + { + $this->setResultUid($result); + return $result; + } + + /** + * Sets any result keys we've received matching our provider-defined uidKey to the key "uid". + * + * @param array $result + */ + protected function setResultUid(array &$result) + { + // If we're operating with the default uidKey there's nothing to do. + if ($this->uidKey === "uid") { + return; + } + + if (isset($result[$this->uidKey])) { + // The AccessToken expects a "uid" to have the key "uid". + $result['uid'] = $result[$this->uidKey]; + } + } + + public function getUserDetails(AccessToken $token) + { + $response = $this->fetchUserDetails($token); + + return $this->userDetails(json_decode($response), $token); + } + + public function getUserUid(AccessToken $token) + { + $response = $this->fetchUserDetails($token, true); + + return $this->userUid(json_decode($response), $token); + } + + public function getUserEmail(AccessToken $token) + { + $response = $this->fetchUserDetails($token, true); + + return $this->userEmail(json_decode($response), $token); + } + + public function getUserScreenName(AccessToken $token) + { + $response = $this->fetchUserDetails($token, true); + + return $this->userScreenName(json_decode($response), $token); + } + + public function userUid($response, AccessToken $token) + { + return isset($response->id) && $response->id ? $response->id : null; + } + + public function userEmail($response, AccessToken $token) + { + return isset($response->email) && $response->email ? $response->email : null; + } + + public function userScreenName($response, AccessToken $token) + { + return isset($response->name) && $response->name ? $response->name : null; + } + + /** + * Build HTTP the HTTP query, handling PHP version control options + * + * @param array $params + * @param integer $numeric_prefix + * @param string $arg_separator + * @param null|integer $enc_type + * + * @return string + * @codeCoverageIgnoreStart + */ + protected function httpBuildQuery($params, $numeric_prefix = 0, $arg_separator = '&', $enc_type = null) + { + if (version_compare(PHP_VERSION, '5.4.0', '>=') && !defined('HHVM_VERSION')) { + if ($enc_type === null) { + $enc_type = $this->httpBuildEncType; + } + $url = http_build_query($params, $numeric_prefix, $arg_separator, $enc_type); + } else { + $url = http_build_query($params, $numeric_prefix, $arg_separator); + } + + return $url; + } + + protected function fetchUserDetails(AccessToken $token) + { + $url = $this->urlUserDetails($token); + + $headers = $this->getHeaders($token); + + return $this->fetchProviderData($url, $headers); + } + + protected function fetchProviderData($url, array $headers = []) + { + try { + $client = $this->getHttpClient(); + $client->setBaseUrl($url); + + if ($headers) { + $client->setDefaultOption('headers', $headers); + } + + $request = $client->get()->send(); + $response = $request->getBody(); + } catch (BadResponseException $e) { + // @codeCoverageIgnoreStart + $response = $e->getResponse()->getBody(); + $result = $this->prepareResponse($response); + throw new IDPException($result); + // @codeCoverageIgnoreEnd + } + + return $response; + } + + protected function getAuthorizationHeaders($token) + { + $headers = []; + if ($this->authorizationHeader) { + $headers['Authorization'] = $this->authorizationHeader . ' ' . $token; + } + return $headers; + } + + public function getHeaders($token = null) + { + $headers = $this->headers; + if ($token) { + $headers = array_merge($headers, $this->getAuthorizationHeaders($token)); + } + return $headers; + } + + public function setRedirectHandler(Closure $handler) + { + $this->redirectHandler = $handler; + } +} |