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<?php |
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/* |
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* This product includes software developed at |
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* Google Inc. (http://www.google.es/about.html) |
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* under Apache 2.0 License (http://www.apache.org/licenses/LICENSE-2.0.html). |
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* |
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* See http://google-api-dfp-php.googlecode.com. |
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* |
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*/ |
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class EOAuthUserIdentity extends EOAuthComponent implements IUserIdentity { |
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/** |
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* @var string (required) |
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* For example 'https://sandbox.google.com/apis/ads/publisher/' |
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*/ |
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public $scope; |
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/** |
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* @var string OAuth consumer key. Defaults to 'anonymous' |
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*/ |
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public $key='anonymous'; |
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/** |
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* @var string OAuth consumer secret. Defaults to 'anonymous' |
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*/ |
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public $secret='anonymous'; |
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/** |
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* @var array|class OAuthProvider configuration|class. |
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* If using array: |
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* 'provider'=>array( |
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* 'request'=>'https://www...', |
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* 'authorize'=>'https://www...', |
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* 'access'=>'https://www...', |
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* ) |
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* |
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* @see EOAuthProvider |
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*/ |
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private $provider; |
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private $_providerClass='EOAuthProvider'; |
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private $_authenticated=false; |
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private $_error; |
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public function __construct($attributes) { |
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if(is_array($attributes)) { |
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if(isset($attributes['provider'])) { |
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$this->setProvider($attributes['provider']); |
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unset($attributes['provider']); |
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} |
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else |
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$this->setProvider(); |
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foreach($attributes as $attr=>$value) |
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$this->$attr=$value; |
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} |
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else return null; |
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} |
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public function getError(){ |
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return $this->_error; |
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} |
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public function setError($msg) { |
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$this->_error=$msg; |
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} |
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public function getIsAuthenticated() { |
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return $this->_authenticated; |
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} |
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public function getId() { |
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return $this->provider->token->key; |
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} |
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public function getName() { |
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return $this->provider->token->key; |
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} |
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public function getPersistentStates() { |
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} |
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public function authenticate() { |
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$session=Yii::app()->session; |
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if (isset($_REQUEST['oauth_token'])) { |
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$oauthToken = $_REQUEST['oauth_token']; |
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} |
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if (isset($_REQUEST['oauth_verifier'])) { |
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$oauthVerifier = $_REQUEST['oauth_verifier']; |
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} |
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try { |
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if (!isset($oauthToken)) { |
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// Create consumer. |
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$consumer = new OAuthConsumer($this->key, $this->secret); |
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// Set the scope (must match service endpoint). |
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$scope = $this->scope; |
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// Set the application name as it is displayed on the authorization page. |
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$applicationName = Yii::app()->name; |
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// Use the URL of the current page as the callback URL. |
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$protocol = (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") |
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? 'https://' : 'http://'; |
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$server = $_SERVER['HTTP_HOST']; |
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$path = $_SERVER["REQUEST_URI"]; |
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$callbackUrl = $protocol . $server . $path; |
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// Get request token. |
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$token = EOAuthUtils::GetRequestToken($consumer, $scope, |
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$this->provider->request_token_endpoint, $applicationName, $callbackUrl); |
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// Store consumer and token in session. |
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$session['OAUTH_CONSUMER'] = $consumer; |
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$session['OAUTH_TOKEN'] = $token; |
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// Get authorization URL. |
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$url = EOAuthUtils::GetAuthorizationUrl($token, |
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$this->provider->authorize_token_endpoint); |
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// Redirect to authorization URL. |
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Yii::app()->request->redirect($url); |
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} else { |
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// Retrieve consumer and token from session. |
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$consumer = $session['OAUTH_CONSUMER']; |
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$token = $session['OAUTH_TOKEN']; |
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// Set authorized token. |
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$token->key = $oauthToken; |
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// Upgrade to access token. |
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$token = EOAuthUtils::GetAccessToken($consumer, $token, $oauthVerifier, |
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$this->provider->access_token_endpoint); |
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// Set OAuth provider. |
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$this->provider->consumer=$consumer; |
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$this->provider->token=$token; |
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$this->_authenticated=true; |
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} |
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} catch (OAuthException $e) { |
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$this->_error=$e->getMessage(); |
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} |
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return $this->isAuthenticated; |
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} |
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public function setProvider($provider='EOAuthProvider') { |
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if(is_string($provider)) |
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$this->_providerClass=$provider; |
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$this->provider= new $this->_providerClass; |
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if(is_array($provider)) |
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foreach($provider as $attr=>$val) { |
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$attribute=$attr.'_token_endpoint'; |
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$this->provider->$attribute=$val; |
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} |
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} |
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public function getProvider(){ |
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return $this->provider; |
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} |
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} |
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?> |
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If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: