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348 lines
11 KiB
PHP
348 lines
11 KiB
PHP
<?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_Gdata
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* @subpackage Gdata
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* @copyright Copyright (c) 2005-2009 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: HttpClient.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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/**
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* Zend_Http_Client
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*/
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require_once 'Zend/Http/Client.php';
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/**
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* Gdata Http Client object.
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*
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* Class to extend the generic Zend Http Client with the ability to perform
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* secure AuthSub requests
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*
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* @category Zend
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* @package Zend_Gdata
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* @subpackage Gdata
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* @copyright Copyright (c) 2005-2009 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_Gdata_HttpClient extends Zend_Http_Client
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{
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/**
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* OpenSSL private key resource id
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* This key is used for AuthSub authentication. If this value is set,
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* it is assuemd that secure AuthSub is desired.
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*
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* @var resource
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*/
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private $_authSubPrivateKeyId = null;
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/**
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* Token for AuthSub authentication.
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* If this token is set, AuthSub authentication is used.
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*
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* @var string
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*/
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private $_authSubToken = null;
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/**
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* Token for ClientLogin authentication.
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* If only this token is set, ClientLogin authentication is used.
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*
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* @var string
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*/
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private $_clientLoginToken = null;
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/**
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* Token for ClientLogin authentication.
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* If this token is set, and the AuthSub key is not set,
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* ClientLogin authentication is used
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*
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* @var string
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*/
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private $_clientLoginKey = null;
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/**
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* True if this request is being made with data supplied by
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* a stream object instead of a raw encoded string.
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*
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* @var bool
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*/
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protected $_streamingRequest = null;
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/**
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* Sets the PEM formatted private key, as read from a file.
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*
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* This method reads the file and then calls setAuthSubPrivateKey()
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* with the file contents.
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*
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* @param string $file The location of the file containing the PEM key
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* @param string $passphrase The optional private key passphrase
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* @param bool $useIncludePath Whether to search the include_path
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* for the file
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* @return void
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*/
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public function setAuthSubPrivateKeyFile($file, $passphrase = null,
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$useIncludePath = false) {
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$fp = fopen($file, "r", $useIncludePath);
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$key = '';
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while (!feof($fp)) {
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$key .= fread($fp, 8192);
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}
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$this->setAuthSubPrivateKey($key, $passphrase);
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fclose($fp);
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}
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/**
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* Sets the PEM formatted private key to be used for secure AuthSub auth.
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*
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* In order to call this method, openssl must be enabled in your PHP
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* installation. Otherwise, a Zend_Gdata_App_InvalidArgumentException
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* will be thrown.
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*
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* @param string $key The private key
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* @param string $passphrase The optional private key passphrase
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* @throws Zend_Gdata_App_InvalidArgumentException
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* @return Zend_Gdata_HttpClient Provides a fluent interface
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*/
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public function setAuthSubPrivateKey($key, $passphrase = null) {
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if ($key != null && !function_exists('openssl_pkey_get_private')) {
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require_once 'Zend/Gdata/App/InvalidArgumentException.php';
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throw new Zend_Gdata_App_InvalidArgumentException(
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'You cannot enable secure AuthSub if the openssl module ' .
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'is not enabled in your PHP installation.');
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}
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$this->_authSubPrivateKeyId = openssl_pkey_get_private(
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$key, $passphrase);
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return $this;
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}
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/**
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* Gets the openssl private key id
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*
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* @return string The private key
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*/
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public function getAuthSubPrivateKeyId() {
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return $this->_authSubPrivateKeyId;
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}
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/**
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* Gets the AuthSub token used for authentication
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*
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* @return string The token
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*/
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public function getAuthSubToken() {
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return $this->_authSubToken;
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}
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/**
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* Sets the AuthSub token used for authentication
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*
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* @param string $token The token
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* @return Zend_Gdata_HttpClient Provides a fluent interface
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*/
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public function setAuthSubToken($token) {
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$this->_authSubToken = $token;
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return $this;
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}
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/**
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* Gets the ClientLogin token used for authentication
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*
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* @return string The token
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*/
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public function getClientLoginToken() {
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return $this->_clientLoginToken;
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}
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/**
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* Sets the ClientLogin token used for authentication
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*
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* @param string $token The token
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* @return Zend_Gdata_HttpClient Provides a fluent interface
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*/
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public function setClientLoginToken($token) {
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$this->_clientLoginToken = $token;
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return $this;
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}
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/**
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* Filters the HTTP requests being sent to add the Authorization header.
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*
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* If both AuthSub and ClientLogin tokens are set,
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* AuthSub takes precedence. If an AuthSub key is set, then
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* secure AuthSub authentication is used, and the request is signed.
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* Requests must be signed only with the private key corresponding to the
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* public key registered with Google. If an AuthSub key is set, but
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* openssl support is not enabled in the PHP installation, an exception is
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* thrown.
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*
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* @param string $method The HTTP method
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* @param string $url The URL
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* @param array $headers An associate array of headers to be
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* sent with the request or null
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* @param string $body The body of the request or null
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* @param string $contentType The MIME content type of the body or null
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* @throws Zend_Gdata_App_Exception if there was a signing failure
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* @return array The processed values in an associative array,
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* using the same names as the params
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*/
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public function filterHttpRequest($method, $url, $headers = array(), $body = null, $contentType = null) {
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if ($this->getAuthSubToken() != null) {
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// AuthSub authentication
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if ($this->getAuthSubPrivateKeyId() != null) {
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// secure AuthSub
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$time = time();
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$nonce = mt_rand(0, 999999999);
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$dataToSign = $method . ' ' . $url . ' ' . $time . ' ' . $nonce;
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// compute signature
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$pKeyId = $this->getAuthSubPrivateKeyId();
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$signSuccess = openssl_sign($dataToSign, $signature, $pKeyId,
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OPENSSL_ALGO_SHA1);
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if (!$signSuccess) {
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require_once 'Zend/Gdata/App/Exception.php';
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throw new Zend_Gdata_App_Exception(
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'openssl_signing failure - returned false');
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}
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// encode signature
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$encodedSignature = base64_encode($signature);
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// final header
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$headers['authorization'] = 'AuthSub token="' . $this->getAuthSubToken() . '" ' .
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'data="' . $dataToSign . '" ' .
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'sig="' . $encodedSignature . '" ' .
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'sigalg="rsa-sha1"';
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} else {
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// AuthSub without secure tokens
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$headers['authorization'] = 'AuthSub token="' . $this->getAuthSubToken() . '"';
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}
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} elseif ($this->getClientLoginToken() != null) {
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$headers['authorization'] = 'GoogleLogin auth=' . $this->getClientLoginToken();
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}
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return array('method' => $method, 'url' => $url, 'body' => $body, 'headers' => $headers, 'contentType' => $contentType);
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}
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/**
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* Method for filtering the HTTP response, though no filtering is
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* currently done.
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*
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* @param Zend_Http_Response $response The response object to filter
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* @return Zend_Http_Response The filterd response object
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*/
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public function filterHttpResponse($response) {
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return $response;
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}
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/**
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* Return the current connection adapter
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*
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* @return Zend_Http_Client_Adapter_Interface|string $adapter
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*/
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public function getAdapter()
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{
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return $this->adapter;
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}
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/**
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* Load the connection adapter
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*
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* @param Zend_Http_Client_Adapter_Interface $adapter
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* @return void
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*/
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public function setAdapter($adapter)
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{
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if ($adapter == null) {
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$this->adapter = $adapter;
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} else {
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parent::setAdapter($adapter);
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}
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}
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/**
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* Set the streamingRequest variable which controls whether we are
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* sending the raw (already encoded) POST data from a stream source.
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*
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* @param boolean $value The value to set.
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* @return void
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*/
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public function setStreamingRequest($value)
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{
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$this->_streamingRequest = $value;
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}
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/**
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* Check whether the client is set to perform streaming requests.
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*
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* @return boolean True if yes, false otherwise.
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*/
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public function getStreamingRequest()
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{
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if ($this->_streamingRequest()) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Prepare the request body (for POST and PUT requests)
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*
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* @return string
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* @throws Zend_Http_Client_Exception
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*/
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protected function _prepareBody()
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{
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if($this->_streamingRequest) {
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$this->setHeaders(self::CONTENT_LENGTH,
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$this->raw_post_data->getTotalSize());
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return $this->raw_post_data;
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}
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else {
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return parent::_prepareBody();
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}
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}
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/**
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* Clear all custom parameters we set.
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*
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* @return Zend_Http_Client
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*/
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public function resetParameters()
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{
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$this->_streamingRequest = false;
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return parent::resetParameters();
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}
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/**
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* Set the raw (already encoded) POST data from a stream source.
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*
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* This is used to support POSTing from open file handles without
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* caching the entire body into memory. It is a wrapper around
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* Zend_Http_Client::setRawData().
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*
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* @param string $data The request data
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* @param string $enctype The encoding type
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* @return Zend_Http_Client
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*/
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public function setRawDataStream($data, $enctype = null)
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{
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$this->_streamingRequest = true;
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return $this->setRawData($data, $enctype);
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}
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}
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