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<?php
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namespace IMSGlobal\LTI\ToolProvider;
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use IMSGlobal\LTI\OAuth;
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/**
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 * Class to represent an OAuth datastore
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 *
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 * @author  Stephen P Vickers <svickers@imsglobal.org>
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 * @copyright  IMS Global Learning Consortium Inc
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 * @date  2016
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 * @version 3.0.2
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 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
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 */
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#[\AllowDynamicProperties]
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class OAuthDataStore extends OAuth\OAuthDataStore
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{
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/**
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 * Tool Provider object.
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 *
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 * @var ToolProvider $toolProvider
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 */
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    private $toolProvider = null;
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/**
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 * Class constructor.
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 *
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 * @param ToolProvider $toolProvider Tool_Provider object
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 */
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    public function __construct($toolProvider)
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    {
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        $this->toolProvider = $toolProvider;
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    }
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/**
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 * Create an OAuthConsumer object for the tool consumer.
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 *
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 * @param string $consumerKey Consumer key value
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 *
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 * @return OAuthConsumer OAuthConsumer object
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 */
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    function lookup_consumer($consumerKey)
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    {
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        return new OAuth\OAuthConsumer($this->toolProvider->consumer->getKey(),
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           $this->toolProvider->consumer->secret);
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    }
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/**
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 * Create an OAuthToken object for the tool consumer.
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 *
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 * @param string $consumer   OAuthConsumer object
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 * @param string $tokenType  Token type
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 * @param string $token      Token value
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 *
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 * @return OAuthToken OAuthToken object
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 */
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    function lookup_token($consumer, $tokenType, $token)
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    {
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        return new OAuth\OAuthToken($consumer, '');
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    }
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/**
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 * Lookup nonce value for the tool consumer.
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 *
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 * @param OAuthConsumer $consumer  OAuthConsumer object
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 * @param string        $token     Token value
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 * @param string        $value     Nonce value
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 * @param string        $timestamp Date/time of request
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 *
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 * @return boolean True if the nonce value already exists
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 */
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    function lookup_nonce($consumer, $token, $value, $timestamp)
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    {
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        $nonce = new ConsumerNonce($this->toolProvider->consumer, $value);
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        $ok = !$nonce->load();
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        if ($ok) {
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            $ok = $nonce->save();
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        }
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        if (!$ok) {
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            $this->toolProvider->reason = 'Invalid nonce.';
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        }
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        return !$ok;
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    }
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/**
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 * Get new request token.
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 *
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 * @param OAuthConsumer $consumer  OAuthConsumer object
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 * @param string        $callback  Callback URL
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 *
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 * @return string Null value
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 */
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    function new_request_token($consumer, $callback = null)
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    {
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        return null;
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    }
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/**
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 * Get new access token.
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 *
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 * @param string        $token     Token value
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 * @param OAuthConsumer $consumer  OAuthConsumer object
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 * @param string        $verifier  Verification code
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 *
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 * @return string Null value
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 */
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    function new_access_token($token, $consumer, $verifier = null)
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    {
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        return null;
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    }
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}