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<?php |
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namespace PeterColes\Betfair\Api; |
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use Exception; |
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class Auth extends BaseApi |
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{ |
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/** |
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* Betfair API endpoint for authentication requests |
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*/ |
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const ENDPOINT = 'https://identitysso.betfair.com/api/'; |
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/** |
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* 4 hours, expressed in seconds |
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*/ |
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const SESSION_LENGTH = 4 * 60 * 60; |
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/** |
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* API fail status |
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*/ |
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const API_STATUS_FAIL = 'FAIL'; |
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/** |
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* Application key, provided by Betfair on registration |
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*/ |
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public static $appKey = null; |
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/** |
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* Session token, provided by Betfair at login |
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*/ |
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public static $sessionToken = null; |
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/** |
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* Time of last login, expressed in seconds since the Unix Epoch |
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*/ |
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public static $lastLogin = null; |
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/** |
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* Wrapper method for other methods to initiate and manage a Betfair session |
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* |
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* @param string $appKey |
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* @param string $username |
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* @param string $password |
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*/ |
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public function init($appKey, $username, $password) |
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{ |
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if ($appKey == self::$appKey && $this->sessionRemaining() > 5) { |
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$this->keepAlive(); |
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} else { |
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self::$appKey = $appKey; |
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self::$sessionToken = $this->login($appKey, $username, $password); |
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} |
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} |
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/** |
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* Accept app key and session token and extend session |
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* |
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* @param string $appKey |
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* @param string $sessionToken |
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* @return string |
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*/ |
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public function persist($appKey, $sessionToken) |
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{ |
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if (!$sessionToken) { |
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throw new Exception('Invalid session token'); |
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} |
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self::$appKey = $appKey; |
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self::$sessionToken = $sessionToken; |
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return $this->keepAlive(); |
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} |
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/** |
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* Method to directly execute Betfair login request. |
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* For use only when the init() method isn't appropriate |
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* |
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* @param string $appKey |
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* @param string $username |
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* @param string $password |
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* @return string |
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* @throws Exception |
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*/ |
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public function login($appKey, $username, $password) |
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{ |
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self::$appKey = $appKey; |
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$request = $this->httpClient |
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->setMethod('post') |
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->setEndPoint(self::ENDPOINT.'login/') |
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->setFormData([ 'username' => $username, 'password' => $password ]); |
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$result = $this->execute($request); |
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self::$lastLogin = time(); |
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return $result->token; |
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} |
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/** |
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* Execute Betfair API call to extend the current session |
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* |
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* @return string |
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* @throws Exception |
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*/ |
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public function keepAlive() |
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{ |
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$result = $this->execute($this->httpClient->setEndPoint(self::ENDPOINT.'keepAlive/')); |
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self::$lastLogin = time(); |
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return $result->token; |
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} |
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/** |
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* Execute Betfair API call to logout from their system. |
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* Clear all local references to the session. |
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* |
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* @throws Exception |
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*/ |
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public function logout() |
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{ |
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$result = $this->execute($this->httpClient->setEndPoint(self::ENDPOINT.'logout/')); |
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self::$appKey = null; |
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self::$sessionToken = null; |
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self::$lastLogin = null; |
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} |
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/** |
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* Calculate and provide the time remaining until the current session token expires |
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* |
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* @return integer |
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*/ |
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public function sessionRemaining() |
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{ |
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if (self::$sessionToken === null) { |
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return 0; |
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} |
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return self::$lastLogin + self::SESSION_LENGTH - time(); |
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} |
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public function execute($request) |
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{ |
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$result = $request->authHeaders()->send(); |
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if ($result->status === self::API_STATUS_FAIL) { |
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throw new Exception('Error: '.$result->error); |
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} |
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return $result; |
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} |
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} |
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petercoles /
Betfair-Exchange
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.