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<?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) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Utility.php 24593 2012-01-05 20:35:02Z matthew $
*/
/** Zend_Oauth */
require_once 'Zend/Oauth.php';
/** Zend_Oauth_Http */
require_once 'Zend/Oauth/Http.php';
/**
* @category Zend
* @package Zend_Oauth
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Oauth_Http_Utility
{
/**
* Assemble all parameters for a generic OAuth request - i.e. no special
* params other than the defaults expected for any OAuth query.
*
* @param string $url
* @param Zend_Oauth_Config_ConfigInterface $config
* @param null|array $serviceProviderParams
* @return array
*/
public function assembleParams(
$url,
Zend_Oauth_Config_ConfigInterface $config,
array $serviceProviderParams = null
) {
$params = array(
'oauth_consumer_key' => $config->getConsumerKey(),
'oauth_nonce' => $this->generateNonce(),
'oauth_signature_method' => $config->getSignatureMethod(),
'oauth_timestamp' => $this->generateTimestamp(),
'oauth_version' => $config->getVersion(),
);
if ($config->getToken()->getToken() != null) {
$params['oauth_token'] = $config->getToken()->getToken();
}
if ($serviceProviderParams !== null) {
$params = array_merge($params, $serviceProviderParams);
}
$params['oauth_signature'] = $this->sign(
$params,
$config->getSignatureMethod(),
$config->getConsumerSecret(),
$config->getToken()->getTokenSecret(),
$config->getRequestMethod(),
$url
);
return $params;
}
/**
* Given both OAuth parameters and any custom parametere, generate an
* encoded query string. This method expects parameters to have been
* assembled and signed beforehand.
*
* @param array $params
* @param bool $customParamsOnly Ignores OAuth params e.g. for requests using OAuth Header
* @return string
*/
public function toEncodedQueryString(array $params, $customParamsOnly = false)
{
if ($customParamsOnly) {
foreach ($params as $key=>$value) {
if (preg_match("/^oauth_/", $key)) {
unset($params[$key]);
}
}
}
$encodedParams = array();
foreach ($params as $key => $value) {
$encodedParams[] = self::urlEncode($key)
. '='
. self::urlEncode($value);
}
return implode('&', $encodedParams);
}
/**
* Cast to authorization header
*
* @param array $params
* @param null|string $realm
* @param bool $excludeCustomParams
* @return void
*/
public function toAuthorizationHeader(array $params, $realm = null, $excludeCustomParams = true)
{
$headerValue = array(
'OAuth realm="' . $realm . '"',
);
foreach ($params as $key => $value) {
if ($excludeCustomParams) {
if (!preg_match("/^oauth_/", $key)) {
continue;
}
}
$headerValue[] = self::urlEncode($key)
. '="'
. self::urlEncode($value) . '"';
}
return implode(",", $headerValue);
}
/**
* Sign request
*
* @param array $params
* @param string $signatureMethod
* @param string $consumerSecret
* @param null|string $tokenSecret
* @param null|string $method
* @param null|string $url
* @return string
*/
public function sign(
array $params, $signatureMethod, $consumerSecret, $tokenSecret = null, $method = null, $url = null
) {
$className = '';
$hashAlgo = null;
$parts = explode('-', $signatureMethod);
if (count($parts) > 1) {
$className = 'Zend_Oauth_Signature_' . ucfirst(strtolower($parts[0]));
$hashAlgo = $parts[1];
} else {
$className = 'Zend_Oauth_Signature_' . ucfirst(strtolower($signatureMethod));
}
require_once str_replace('_', '/', $className) . '.php';
$signatureObject = new $className($consumerSecret, $tokenSecret, $hashAlgo);
return $signatureObject->sign($params, $method, $url);
}
/**
* Parse query string
*
* @param mixed $query
* @return array
*/
public function parseQueryString($query)
{
$params = array();
if (empty($query)) {
return array();
}
// Not remotely perfect but beats parse_str() which converts
// periods and uses urldecode, not rawurldecode.
$parts = explode('&', $query);
foreach ($parts as $pair) {
$kv = explode('=', $pair);
$params[rawurldecode($kv[0])] = rawurldecode($kv[1]);
}
return $params;
}
/**
* Generate nonce
*
* @return string
*/
public function generateNonce()
{
return md5(uniqid(rand(), true));
}
/**
* Generate timestamp
*
* @return int
*/
public function generateTimestamp()
{
return time();
}
/**
* urlencode a value
*
* @param string $value
* @return string
*/
public static function urlEncode($value)
{
$encoded = rawurlencode($value);
$encoded = str_replace('%7E', '~', $encoded);
return $encoded;
}
}