adding zend project folders into old campcaster.
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266
library/Zend/Oauth/Http.php
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266
library/Zend/Oauth/Http.php
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Oauth
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Http.php 20232 2010-01-12 17:56:33Z matthew $
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*/
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/** Zend_Oauth_Http_Utility */
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require_once 'Zend/Oauth/Http/Utility.php';
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/** Zend_Uri_Http */
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require_once 'Zend/Uri/Http.php';
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/**
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* @category Zend
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* @package Zend_Oauth
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Oauth_Http
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{
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/**
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* Array of all custom service parameters to be sent in the HTTP request
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* in addition to the usual OAuth parameters.
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*
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* @var array
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*/
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protected $_parameters = array();
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/**
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* Reference to the Zend_Oauth_Consumer instance in use.
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*
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* @var string
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*/
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protected $_consumer = null;
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/**
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* OAuth specifies three request methods, this holds the current preferred
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* one which by default uses the Authorization Header approach for passing
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* OAuth parameters, and a POST body for non-OAuth custom parameters.
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*
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* @var string
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*/
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protected $_preferredRequestScheme = null;
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/**
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* Request Method for the HTTP Request.
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*
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* @var string
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*/
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protected $_preferredRequestMethod = Zend_Oauth::POST;
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/**
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* Instance of the general Zend_Oauth_Http_Utility class.
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*
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* @var Zend_Oauth_Http_Utility
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*/
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protected $_httpUtility = null;
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/**
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* Constructor
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*
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* @param Zend_Oauth_Consumer $consumer
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* @param null|array $parameters
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* @param null|Zend_Oauth_Http_Utility $utility
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* @return void
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*/
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public function __construct(
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Zend_Oauth_Consumer $consumer,
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array $parameters = null,
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Zend_Oauth_Http_Utility $utility = null
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) {
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$this->_consumer = $consumer;
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$this->_preferredRequestScheme = $this->_consumer->getRequestScheme();
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if (!is_null($parameters)) {
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$this->setParameters($parameters);
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}
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if (!is_null($utility)) {
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$this->_httpUtility = $utility;
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} else {
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$this->_httpUtility = new Zend_Oauth_Http_Utility;
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}
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}
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/**
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* Set a preferred HTTP request method.
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*
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* @param string $method
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* @return Zend_Oauth_Http
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*/
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public function setMethod($method)
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{
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if (!in_array($method, array(Zend_Oauth::POST, Zend_Oauth::GET))) {
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require_once 'Zend/Oauth/Exception.php';
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throw new Zend_Oauth_Exception('invalid HTTP method: ' . $method);
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}
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$this->_preferredRequestMethod = $method;
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return $this;
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}
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/**
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* Preferred HTTP request method accessor.
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*
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* @return string
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*/
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public function getMethod()
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{
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return $this->_preferredRequestMethod;
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}
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/**
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* Mutator to set an array of custom parameters for the HTTP request.
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*
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* @param array $customServiceParameters
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* @return Zend_Oauth_Http
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*/
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public function setParameters(array $customServiceParameters)
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{
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$this->_parameters = $customServiceParameters;
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return $this;
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}
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/**
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* Accessor for an array of custom parameters.
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*
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* @return array
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*/
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public function getParameters()
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{
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return $this->_parameters;
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}
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/**
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* Return the Consumer instance in use.
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*
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* @return Zend_Oauth_Consumer
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*/
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public function getConsumer()
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{
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return $this->_consumer;
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}
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/**
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* Commence a request cycle where the current HTTP method and OAuth
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* request scheme set an upper preferred HTTP request style and where
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* failures generate a new HTTP request style further down the OAuth
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* preference list for OAuth Request Schemes.
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* On success, return the Request object that results for processing.
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*
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* @param array $params
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* @return Zend_Http_Response
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* @throws Zend_Oauth_Exception on HTTP request errors
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* @todo Remove cycling?; Replace with upfront do-or-die configuration
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*/
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public function startRequestCycle(array $params)
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{
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$response = null;
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$body = null;
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$status = null;
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try {
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$response = $this->_attemptRequest($params);
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} catch (Zend_Http_Client_Exception $e) {
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require_once 'Zend/Oauth/Exception.php';
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throw new Zend_Oauth_Exception('Error in HTTP request', null, $e);
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}
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if (!is_null($response)) {
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$body = $response->getBody();
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$status = $response->getStatus();
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}
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if (is_null($response) // Request failure/exception
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|| $status == 500 // Internal Server Error
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|| $status == 400 // Bad Request
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|| $status == 401 // Unauthorized
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|| empty($body) // Missing token
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) {
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$this->_assessRequestAttempt($response);
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$response = $this->startRequestCycle($params);
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}
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return $response;
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}
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/**
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* Return an instance of Zend_Http_Client configured to use the Query
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* String scheme for an OAuth driven HTTP request.
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*
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* @param array $params
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* @param string $url
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* @return Zend_Http_Client
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*/
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public function getRequestSchemeQueryStringClient(array $params, $url)
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{
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$client = Zend_Oauth::getHttpClient();
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$client->setUri($url);
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$client->getUri()->setQuery(
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$this->_httpUtility->toEncodedQueryString($params)
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);
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$client->setMethod($this->_preferredRequestMethod);
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return $client;
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}
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/**
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* Manages the switch from OAuth request scheme to another lower preference
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* scheme during a request cycle.
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*
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* @param Zend_Http_Response
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* @return void
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* @throws Zend_Oauth_Exception if unable to retrieve valid token response
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*/
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protected function _assessRequestAttempt(Zend_Http_Response $response = null)
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{
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switch ($this->_preferredRequestScheme) {
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case Zend_Oauth::REQUEST_SCHEME_HEADER:
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$this->_preferredRequestScheme = Zend_Oauth::REQUEST_SCHEME_POSTBODY;
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break;
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case Zend_Oauth::REQUEST_SCHEME_POSTBODY:
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$this->_preferredRequestScheme = Zend_Oauth::REQUEST_SCHEME_QUERYSTRING;
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break;
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default:
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require_once 'Zend/Oauth/Exception.php';
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throw new Zend_Oauth_Exception(
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'Could not retrieve a valid Token response from Token URL:'
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. (!is_null($response)
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? PHP_EOL . $response->getBody()
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: ' No body - check for headers')
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);
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}
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}
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/**
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* Generates a valid OAuth Authorization header based on the provided
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* parameters and realm.
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*
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* @param array $params
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* @param string $realm
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* @return string
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*/
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protected function _toAuthorizationHeader(array $params, $realm = null)
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{
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$headerValue = array();
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$headerValue[] = 'OAuth realm="' . $realm . '"';
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foreach ($params as $key => $value) {
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if (!preg_match("/^oauth_/", $key)) {
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continue;
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}
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$headerValue[] = Zend_Oauth_Http_Utility::urlEncode($key)
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. '="'
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. Zend_Oauth_Http_Utility::urlEncode($value)
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. '"';
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}
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return implode(",", $headerValue);
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}
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}
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