1 | <?php |
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2 | |
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3 | /** |
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4 | * Zend Framework |
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5 | * |
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6 | * LICENSE |
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7 | * |
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8 | * This source file is subject to the new BSD license that is bundled |
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9 | * with this package in the file LICENSE.txt. |
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10 | * It is also available through the world-wide-web at this URL: |
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11 | * http://framework.zend.com/license/new-bsd |
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12 | * If you did not receive a copy of the license and are unable to |
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13 | * obtain it through the world-wide-web, please send an email |
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14 | * to license@zend.com so we can send you a copy immediately. |
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15 | * |
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16 | * @category Zend |
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17 | * @package Zend_Http |
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18 | * @subpackage Client_Adapter |
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19 | * @version $Id: Curl.php 24594 2012-01-05 21:27:01Z matthew $ |
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20 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) |
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21 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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22 | */ |
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23 | |
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24 | /** |
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25 | * @see Zend_Uri_Http |
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26 | */ |
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27 | require_once 'Zend/Uri/Http.php'; |
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28 | |
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29 | /** |
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30 | * @see Zend_Http_Client_Adapter_Interface |
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31 | */ |
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32 | require_once 'Zend/Http/Client/Adapter/Interface.php'; |
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33 | /** |
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34 | * @see Zend_Http_Client_Adapter_Stream |
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35 | */ |
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36 | require_once 'Zend/Http/Client/Adapter/Stream.php'; |
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37 | |
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38 | /** |
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39 | * An adapter class for Zend_Http_Client based on the curl extension. |
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40 | * Curl requires libcurl. See for full requirements the PHP manual: http://php.net/curl |
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41 | * |
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42 | * @category Zend |
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43 | * @package Zend_Http |
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44 | * @subpackage Client_Adapter |
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45 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) |
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46 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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47 | */ |
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48 | class Zend_Http_Client_Adapter_Curl implements Zend_Http_Client_Adapter_Interface, Zend_Http_Client_Adapter_Stream |
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49 | { |
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50 | /** |
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51 | * Parameters array |
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52 | * |
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53 | * @var array |
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54 | */ |
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55 | protected $_config = array(); |
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56 | |
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57 | /** |
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58 | * What host/port are we connected to? |
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59 | * |
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60 | * @var array |
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61 | */ |
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62 | protected $_connected_to = array(null, null); |
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63 | |
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64 | /** |
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65 | * The curl session handle |
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66 | * |
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67 | * @var resource|null |
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68 | */ |
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69 | protected $_curl = null; |
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70 | |
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71 | /** |
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72 | * List of cURL options that should never be overwritten |
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73 | * |
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74 | * @var array |
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75 | */ |
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76 | protected $_invalidOverwritableCurlOptions; |
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77 | |
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78 | /** |
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79 | * Response gotten from server |
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80 | * |
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81 | * @var string |
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82 | */ |
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83 | protected $_response = null; |
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84 | |
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85 | /** |
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86 | * Stream for storing output |
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87 | * |
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88 | * @var resource |
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89 | */ |
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90 | protected $out_stream; |
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91 | |
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92 | /** |
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93 | * Adapter constructor |
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94 | * |
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95 | * Config is set using setConfig() |
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96 | * |
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97 | * @return void |
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98 | * @throws Zend_Http_Client_Adapter_Exception |
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99 | */ |
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100 | public function __construct() |
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101 | { |
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102 | if (!extension_loaded('curl')) { |
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103 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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104 | throw new Zend_Http_Client_Adapter_Exception('cURL extension has to be loaded to use this Zend_Http_Client adapter.'); |
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105 | } |
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106 | $this->_invalidOverwritableCurlOptions = array( |
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107 | CURLOPT_HTTPGET, |
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108 | CURLOPT_POST, |
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109 | CURLOPT_PUT, |
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110 | CURLOPT_CUSTOMREQUEST, |
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111 | CURLOPT_HEADER, |
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112 | CURLOPT_RETURNTRANSFER, |
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113 | CURLOPT_HTTPHEADER, |
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114 | CURLOPT_POSTFIELDS, |
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115 | CURLOPT_INFILE, |
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116 | CURLOPT_INFILESIZE, |
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117 | CURLOPT_PORT, |
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118 | CURLOPT_MAXREDIRS, |
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119 | CURLOPT_CONNECTTIMEOUT, |
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120 | CURL_HTTP_VERSION_1_1, |
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121 | CURL_HTTP_VERSION_1_0, |
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122 | ); |
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123 | } |
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124 | |
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125 | /** |
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126 | * Set the configuration array for the adapter |
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127 | * |
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128 | * @throws Zend_Http_Client_Adapter_Exception |
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129 | * @param Zend_Config | array $config |
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130 | * @return Zend_Http_Client_Adapter_Curl |
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131 | */ |
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132 | public function setConfig($config = array()) |
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133 | { |
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134 | if ($config instanceof Zend_Config) { |
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135 | $config = $config->toArray(); |
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136 | |
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137 | } elseif (! is_array($config)) { |
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138 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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139 | throw new Zend_Http_Client_Adapter_Exception( |
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140 | 'Array or Zend_Config object expected, got ' . gettype($config) |
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141 | ); |
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142 | } |
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143 | |
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144 | if(isset($config['proxy_user']) && isset($config['proxy_pass'])) { |
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145 | $this->setCurlOption(CURLOPT_PROXYUSERPWD, $config['proxy_user'].":".$config['proxy_pass']); |
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146 | unset($config['proxy_user'], $config['proxy_pass']); |
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147 | } |
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148 | |
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149 | foreach ($config as $k => $v) { |
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150 | $option = strtolower($k); |
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151 | switch($option) { |
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152 | case 'proxy_host': |
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153 | $this->setCurlOption(CURLOPT_PROXY, $v); |
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154 | break; |
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155 | case 'proxy_port': |
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156 | $this->setCurlOption(CURLOPT_PROXYPORT, $v); |
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157 | break; |
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158 | default: |
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159 | $this->_config[$option] = $v; |
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160 | break; |
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161 | } |
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162 | } |
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163 | |
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164 | return $this; |
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165 | } |
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166 | |
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167 | /** |
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168 | * Retrieve the array of all configuration options |
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169 | * |
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170 | * @return array |
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171 | */ |
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172 | public function getConfig() |
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173 | { |
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174 | return $this->_config; |
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175 | } |
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176 | |
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177 | /** |
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178 | * Direct setter for cURL adapter related options. |
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179 | * |
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180 | * @param string|int $option |
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181 | * @param mixed $value |
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182 | * @return Zend_Http_Adapter_Curl |
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183 | */ |
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184 | public function setCurlOption($option, $value) |
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185 | { |
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186 | if (!isset($this->_config['curloptions'])) { |
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187 | $this->_config['curloptions'] = array(); |
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188 | } |
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189 | $this->_config['curloptions'][$option] = $value; |
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190 | return $this; |
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191 | } |
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192 | |
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193 | /** |
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194 | * Initialize curl |
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195 | * |
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196 | * @param string $host |
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197 | * @param int $port |
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198 | * @param boolean $secure |
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199 | * @return void |
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200 | * @throws Zend_Http_Client_Adapter_Exception if unable to connect |
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201 | */ |
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202 | public function connect($host, $port = 80, $secure = false) |
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203 | { |
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204 | // If we're already connected, disconnect first |
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205 | if ($this->_curl) { |
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206 | $this->close(); |
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207 | } |
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208 | |
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209 | // If we are connected to a different server or port, disconnect first |
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210 | if ($this->_curl |
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211 | && is_array($this->_connected_to) |
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212 | && ($this->_connected_to[0] != $host |
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213 | || $this->_connected_to[1] != $port) |
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214 | ) { |
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215 | $this->close(); |
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216 | } |
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217 | |
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218 | // Do the actual connection |
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219 | $this->_curl = curl_init(); |
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220 | if ($port != 80) { |
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221 | curl_setopt($this->_curl, CURLOPT_PORT, intval($port)); |
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222 | } |
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223 | |
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224 | // Set timeout |
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225 | curl_setopt($this->_curl, CURLOPT_CONNECTTIMEOUT, $this->_config['timeout']); |
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226 | |
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227 | // Set Max redirects |
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228 | curl_setopt($this->_curl, CURLOPT_MAXREDIRS, $this->_config['maxredirects']); |
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229 | |
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230 | if (!$this->_curl) { |
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231 | $this->close(); |
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232 | |
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233 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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234 | throw new Zend_Http_Client_Adapter_Exception('Unable to Connect to ' . $host . ':' . $port); |
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235 | } |
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236 | |
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237 | if ($secure !== false) { |
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238 | // Behave the same like Zend_Http_Adapter_Socket on SSL options. |
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239 | if (isset($this->_config['sslcert'])) { |
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240 | curl_setopt($this->_curl, CURLOPT_SSLCERT, $this->_config['sslcert']); |
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241 | } |
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242 | if (isset($this->_config['sslpassphrase'])) { |
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243 | curl_setopt($this->_curl, CURLOPT_SSLCERTPASSWD, $this->_config['sslpassphrase']); |
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244 | } |
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245 | } |
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246 | |
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247 | // Update connected_to |
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248 | $this->_connected_to = array($host, $port); |
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249 | } |
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250 | |
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251 | /** |
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252 | * Send request to the remote server |
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253 | * |
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254 | * @param string $method |
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255 | * @param Zend_Uri_Http $uri |
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256 | * @param float $http_ver |
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257 | * @param array $headers |
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258 | * @param string $body |
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259 | * @return string $request |
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260 | * @throws Zend_Http_Client_Adapter_Exception If connection fails, connected to wrong host, no PUT file defined, unsupported method, or unsupported cURL option |
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261 | */ |
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262 | public function write($method, $uri, $httpVersion = 1.1, $headers = array(), $body = '') |
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263 | { |
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264 | // Make sure we're properly connected |
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265 | if (!$this->_curl) { |
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266 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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267 | throw new Zend_Http_Client_Adapter_Exception("Trying to write but we are not connected"); |
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268 | } |
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269 | |
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270 | if ($this->_connected_to[0] != $uri->getHost() || $this->_connected_to[1] != $uri->getPort()) { |
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271 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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272 | throw new Zend_Http_Client_Adapter_Exception("Trying to write but we are connected to the wrong host"); |
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273 | } |
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274 | |
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275 | // set URL |
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276 | curl_setopt($this->_curl, CURLOPT_URL, $uri->__toString()); |
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277 | |
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278 | // ensure correct curl call |
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279 | $curlValue = true; |
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280 | switch ($method) { |
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281 | case Zend_Http_Client::GET: |
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282 | $curlMethod = CURLOPT_HTTPGET; |
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283 | break; |
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284 | |
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285 | case Zend_Http_Client::POST: |
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286 | $curlMethod = CURLOPT_POST; |
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287 | break; |
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288 | |
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289 | case Zend_Http_Client::PUT: |
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290 | // There are two different types of PUT request, either a Raw Data string has been set |
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291 | // or CURLOPT_INFILE and CURLOPT_INFILESIZE are used. |
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292 | if(is_resource($body)) { |
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293 | $this->_config['curloptions'][CURLOPT_INFILE] = $body; |
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294 | } |
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295 | if (isset($this->_config['curloptions'][CURLOPT_INFILE])) { |
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296 | // Now we will probably already have Content-Length set, so that we have to delete it |
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297 | // from $headers at this point: |
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298 | foreach ($headers AS $k => $header) { |
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299 | if (preg_match('/Content-Length:\s*(\d+)/i', $header, $m)) { |
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300 | if(is_resource($body)) { |
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301 | $this->_config['curloptions'][CURLOPT_INFILESIZE] = (int)$m[1]; |
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302 | } |
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303 | unset($headers[$k]); |
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304 | } |
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305 | } |
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306 | |
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307 | if (!isset($this->_config['curloptions'][CURLOPT_INFILESIZE])) { |
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308 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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309 | throw new Zend_Http_Client_Adapter_Exception("Cannot set a file-handle for cURL option CURLOPT_INFILE without also setting its size in CURLOPT_INFILESIZE."); |
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310 | } |
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311 | |
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312 | if(is_resource($body)) { |
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313 | $body = ''; |
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314 | } |
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315 | |
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316 | $curlMethod = CURLOPT_PUT; |
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317 | } else { |
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318 | $curlMethod = CURLOPT_CUSTOMREQUEST; |
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319 | $curlValue = "PUT"; |
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320 | } |
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321 | break; |
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322 | |
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323 | case Zend_Http_Client::DELETE: |
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324 | $curlMethod = CURLOPT_CUSTOMREQUEST; |
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325 | $curlValue = "DELETE"; |
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326 | break; |
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327 | |
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328 | case Zend_Http_Client::OPTIONS: |
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329 | $curlMethod = CURLOPT_CUSTOMREQUEST; |
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330 | $curlValue = "OPTIONS"; |
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331 | break; |
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332 | |
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333 | case Zend_Http_Client::TRACE: |
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334 | $curlMethod = CURLOPT_CUSTOMREQUEST; |
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335 | $curlValue = "TRACE"; |
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336 | break; |
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337 | |
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338 | case Zend_Http_Client::HEAD: |
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339 | $curlMethod = CURLOPT_CUSTOMREQUEST; |
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340 | $curlValue = "HEAD"; |
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341 | break; |
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342 | |
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343 | default: |
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344 | // For now, through an exception for unsupported request methods |
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345 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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346 | throw new Zend_Http_Client_Adapter_Exception("Method currently not supported"); |
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347 | } |
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348 | |
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349 | if(is_resource($body) && $curlMethod != CURLOPT_PUT) { |
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350 | require_once 'Zend/Http/Client/Adapter/Exception.php'; |
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351 | throw new Zend_Http_Client_Adapter_Exception("Streaming requests are allowed only with PUT"); |
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352 | } |
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353 | |
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354 | // get http version to use |
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355 | $curlHttp = ($httpVersion == 1.1) ? CURL_HTTP_VERSION_1_1 : CURL_HTTP_VERSION_1_0; |
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356 | |
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357 | // mark as HTTP request and set HTTP method |
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358 | curl_setopt($this->_curl, $curlHttp, true); |
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359 | curl_setopt($this->_curl, $curlMethod, $curlValue); |
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360 | |
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361 | if($this->out_stream) { |
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362 | // headers will be read into the response |
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363 | curl_setopt($this->_curl, CURLOPT_HEADER, false); |
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364 | curl_setopt($this->_curl, CURLOPT_HEADERFUNCTION, array($this, "readHeader")); |
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365 | // and data will be written into the file |
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366 | curl_setopt($this->_curl, CURLOPT_FILE, $this->out_stream); |
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367 | } else { |
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368 | // ensure headers are also returned |
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369 | curl_setopt($this->_curl, CURLOPT_HEADER, true); |
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370 | |
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371 | // ensure actual response is returned |
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372 | curl_setopt($this->_curl, CURLOPT_RETURNTRANSFER, true); |
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373 | } |
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374 | |
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375 | // set additional headers |
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376 | $headers['Accept'] = ''; |
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377 | curl_setopt($this->_curl, CURLOPT_HTTPHEADER, $headers); |
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378 | |
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379 | /** |
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380 | * Make sure POSTFIELDS is set after $curlMethod is set: |
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381 | * @link http://de2.php.net/manual/en/function.curl-setopt.php#81161 |
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382 | */ |
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383 | if ($method == Zend_Http_Client::POST) { |
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384 | curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body); |
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385 | } elseif ($curlMethod == CURLOPT_PUT) { |
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386 | // this covers a PUT by file-handle: |
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387 | // Make the setting of this options explicit (rather than setting it through the loop following a bit lower) |
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388 | // to group common functionality together. |
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389 | curl_setopt($this->_curl, CURLOPT_INFILE, $this->_config['curloptions'][CURLOPT_INFILE]); |
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390 | curl_setopt($this->_curl, CURLOPT_INFILESIZE, $this->_config['curloptions'][CURLOPT_INFILESIZE]); |
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391 | unset($this->_config['curloptions'][CURLOPT_INFILE]); |
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392 | unset($this->_config['curloptions'][CURLOPT_INFILESIZE]); |
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393 | } elseif ($method == Zend_Http_Client::PUT) { |
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394 | // This is a PUT by a setRawData string, not by file-handle |
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395 | curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body); |
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396 | } elseif ($method == Zend_Http_Client::DELETE) { |
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397 | // This is a DELETE by a setRawData string |
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398 | curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body); |
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399 | } |
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400 | |
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401 | // set additional curl options |
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402 | if (isset($this->_config['curloptions'])) { |
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403 | foreach ((array)$this->_config['curloptions'] as $k => $v) { |
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404 | if (!in_array($k, $this->_invalidOverwritableCurlOptions)) { |
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405 | if (curl_setopt($this->_curl, $k, $v) == false) { |
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406 | require_once 'Zend/Http/Client/Exception.php'; |
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407 | throw new Zend_Http_Client_Exception(sprintf("Unknown or erroreous cURL option '%s' set", $k)); |
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408 | } |
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409 | } |
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410 | } |
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411 | } |
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412 | |
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413 | // send the request |
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414 | $response = curl_exec($this->_curl); |
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415 | |
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416 | // if we used streaming, headers are already there |
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417 | if(!is_resource($this->out_stream)) { |
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418 | $this->_response = $response; |
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419 | } |
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420 | |
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421 | $request = curl_getinfo($this->_curl, CURLINFO_HEADER_OUT); |
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422 | $request .= $body; |
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423 | |
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424 | if (empty($this->_response)) { |
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425 | require_once 'Zend/Http/Client/Exception.php'; |
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426 | throw new Zend_Http_Client_Exception("Error in cURL request: " . curl_error($this->_curl)); |
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427 | } |
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428 | |
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429 | // cURL automatically decodes chunked-messages, this means we have to disallow the Zend_Http_Response to do it again |
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430 | if (stripos($this->_response, "Transfer-Encoding: chunked\r\n")) { |
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431 | $this->_response = str_ireplace("Transfer-Encoding: chunked\r\n", '', $this->_response); |
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432 | } |
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433 | |
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434 | // Eliminate multiple HTTP responses. |
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435 | do { |
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436 | $parts = preg_split('|(?:\r?\n){2}|m', $this->_response, 2); |
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437 | $again = false; |
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438 | |
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439 | if (isset($parts[1]) && preg_match("|^HTTP/1\.[01](.*?)\r\n|mi", $parts[1])) { |
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440 | $this->_response = $parts[1]; |
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441 | $again = true; |
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442 | } |
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443 | } while ($again); |
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444 | |
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445 | // cURL automatically handles Proxy rewrites, remove the "HTTP/1.0 200 Connection established" string: |
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446 | if (stripos($this->_response, "HTTP/1.0 200 Connection established\r\n\r\n") !== false) { |
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447 | $this->_response = str_ireplace("HTTP/1.0 200 Connection established\r\n\r\n", '', $this->_response); |
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448 | } |
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449 | |
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450 | return $request; |
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451 | } |
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452 | |
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453 | /** |
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454 | * Return read response from server |
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455 | * |
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456 | * @return string |
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457 | */ |
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458 | public function read() |
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459 | { |
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460 | return $this->_response; |
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461 | } |
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462 | |
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463 | /** |
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464 | * Close the connection to the server |
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465 | * |
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466 | */ |
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467 | public function close() |
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468 | { |
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469 | if(is_resource($this->_curl)) { |
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470 | curl_close($this->_curl); |
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471 | } |
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472 | $this->_curl = null; |
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473 | $this->_connected_to = array(null, null); |
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474 | } |
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475 | |
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476 | /** |
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477 | * Get cUrl Handle |
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478 | * |
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479 | * @return resource |
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480 | */ |
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481 | public function getHandle() |
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482 | { |
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483 | return $this->_curl; |
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484 | } |
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485 | |
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486 | /** |
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487 | * Set output stream for the response |
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488 | * |
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489 | * @param resource $stream |
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490 | * @return Zend_Http_Client_Adapter_Socket |
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491 | */ |
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492 | public function setOutputStream($stream) |
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493 | { |
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494 | $this->out_stream = $stream; |
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495 | return $this; |
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496 | } |
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497 | |
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498 | /** |
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499 | * Header reader function for CURL |
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500 | * |
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501 | * @param resource $curl |
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502 | * @param string $header |
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503 | * @return int |
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504 | */ |
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505 | public function readHeader($curl, $header) |
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506 | { |
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507 | $this->_response .= $header; |
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508 | return strlen($header); |
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509 | } |
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510 | } |
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