--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/enmi/Zend/Oauth/Http/RequestToken.php	Thu Jan 20 19:30:54 2011 +0100
@@ -0,0 +1,162 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Oauth
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: RequestToken.php 23076 2010-10-10 21:37:20Z padraic $
+ */
+
+/** Zend_Oauth_Http */
+require_once 'Zend/Oauth/Http.php';
+
+/** Zend_Oauth_Token_Request */
+require_once 'Zend/Oauth/Token/Request.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Oauth
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Oauth_Http_RequestToken extends Zend_Oauth_Http
+{
+    /**
+     * Singleton instance if required of the HTTP client
+     *
+     * @var Zend_Http_Client
+     */
+    protected $_httpClient = null;
+
+    /**
+     * Initiate a HTTP request to retrieve a Request Token.
+     *
+     * @return Zend_Oauth_Token_Request
+     */
+    public function execute()
+    {
+        $params   = $this->assembleParams();
+        $response = $this->startRequestCycle($params);
+        $return   = new Zend_Oauth_Token_Request($response);
+        return $return;
+    }
+
+    /**
+     * Assemble all parameters for an OAuth Request Token request.
+     *
+     * @return array
+     */
+    public function assembleParams()
+    {
+        $params = array(
+            'oauth_consumer_key'     => $this->_consumer->getConsumerKey(),
+            'oauth_nonce'            => $this->_httpUtility->generateNonce(),
+            'oauth_timestamp'        => $this->_httpUtility->generateTimestamp(),
+            'oauth_signature_method' => $this->_consumer->getSignatureMethod(),
+            'oauth_version'          => $this->_consumer->getVersion(),
+        );
+
+        // indicates we support 1.0a
+        if ($this->_consumer->getCallbackUrl()) {
+            $params['oauth_callback'] = $this->_consumer->getCallbackUrl();
+        } else {
+            $params['oauth_callback'] = 'oob';
+        }
+
+        if (!empty($this->_parameters)) {
+            $params = array_merge($params, $this->_parameters);
+        }
+
+        $params['oauth_signature'] = $this->_httpUtility->sign(
+            $params,
+            $this->_consumer->getSignatureMethod(),
+            $this->_consumer->getConsumerSecret(),
+            null,
+            $this->_preferredRequestMethod,
+            $this->_consumer->getRequestTokenUrl()
+        );
+
+        return $params;
+    }
+
+    /**
+     * Generate and return a HTTP Client configured for the Header Request Scheme
+     * specified by OAuth, for use in requesting a Request Token.
+     *
+     * @param array $params
+     * @return Zend_Http_Client
+     */
+    public function getRequestSchemeHeaderClient(array $params)
+    {
+        $headerValue = $this->_httpUtility->toAuthorizationHeader(
+            $params
+        );
+        $client = Zend_Oauth::getHttpClient();
+        $client->setUri($this->_consumer->getRequestTokenUrl());
+        $client->setHeaders('Authorization', $headerValue);
+        $rawdata = $this->_httpUtility->toEncodedQueryString($params, true);
+        if (!empty($rawdata)) {
+            $client->setRawData($rawdata, 'application/x-www-form-urlencoded');
+        }
+        $client->setMethod($this->_preferredRequestMethod);
+        return $client;
+    }
+
+    /**
+     * Generate and return a HTTP Client configured for the POST Body Request
+     * Scheme specified by OAuth, for use in requesting a Request Token.
+     *
+     * @param  array $params
+     * @return Zend_Http_Client
+     */
+    public function getRequestSchemePostBodyClient(array $params)
+    {
+        $client = Zend_Oauth::getHttpClient();
+        $client->setUri($this->_consumer->getRequestTokenUrl());
+        $client->setMethod($this->_preferredRequestMethod);
+        $client->setRawData(
+            $this->_httpUtility->toEncodedQueryString($params)
+        );
+        $client->setHeaders(
+            Zend_Http_Client::CONTENT_TYPE,
+            Zend_Http_Client::ENC_URLENCODED
+        );
+        return $client;
+    }
+
+    /**
+     * Attempt a request based on the current configured OAuth Request Scheme and
+     * return the resulting HTTP Response.
+     *
+     * @param  array $params
+     * @return Zend_Http_Response
+     */
+    protected function _attemptRequest(array $params)
+    {
+        switch ($this->_preferredRequestScheme) {
+            case Zend_Oauth::REQUEST_SCHEME_HEADER:
+                $httpClient = $this->getRequestSchemeHeaderClient($params);
+                break;
+            case Zend_Oauth::REQUEST_SCHEME_POSTBODY:
+                $httpClient = $this->getRequestSchemePostBodyClient($params);
+                break;
+            case Zend_Oauth::REQUEST_SCHEME_QUERYSTRING:
+                $httpClient = $this->getRequestSchemeQueryStringClient($params,
+                    $this->_consumer->getRequestTokenUrl());
+                break;
+        }
+        return $httpClient->request();
+    }
+}