1: <?php
  2: 
  3: App::uses('HttpResponse', 'Web.Lib');
  4: 
  5: class HttpClient {
  6: 
  7:     /**
  8:      *
  9:      * @var string
 10:      */
 11:     private $agent = 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:11.0) Gecko/20100101 Firefox/11.0';
 12:     
 13:     /**
 14:      *
 15:      * @var string
 16:      */
 17:     private $referer = '';
 18:     
 19:     /**
 20:      *
 21:      * @var string
 22:      */
 23:     private $targetResponseDirectory = null;
 24:     
 25:     /**
 26:      *
 27:      * @var int
 28:      */
 29:     private static $targetCount = 0;
 30:     
 31:     /**
 32:      *
 33:      * @var boolean
 34:      */
 35:     private $followLocation = false;
 36: 
 37:     /**
 38:      *
 39:      * @param array $url
 40:      * @param array $parameters
 41:      * @return HttpResponse
 42:      */
 43:     public function doPost($url, $parameters = array()) {
 44:         return $this->_doRequest($url, $parameters, true);
 45:     }
 46: 
 47:     /**
 48:      *
 49:      * @param array $url
 50:      * @param array $parameters
 51:      * @return HttpResponse
 52:      */
 53:     public function doGet($url, $parameters = array()) {
 54:         return $this->_doRequest($url, $parameters, false);
 55:     }
 56:     
 57:     /**
 58:      *
 59:      * @param boolean $enabled 
 60:      */
 61:     public function setFollowLocation($enabled) {
 62:         $this->followLocation = $enabled;
 63:     }
 64:     
 65:     /**
 66:      * 
 67:      * @param string $path
 68:      */
 69:     public function setTargetResponseDirectory($path) {
 70:         $this->targetResponseDirectory = $path;
 71:     }
 72: 
 73:     /**
 74:      * 
 75:      * @param string $url
 76:      * @param array $parameters
 77:      * @param boolean $post
 78:      * @return \HttpResponse
 79:      */
 80:     private function _doRequest($url, $parameters, $post) {        
 81:         $curlOptions = array();        
 82:         
 83:         if ($post) {
 84:             $curlOptions[CURLOPT_URL] = $url;
 85:             $curlOptions[CURLOPT_POST] = true;
 86:             $curlOptions[CURLOPT_POSTFIELDS] = $this->_buildParameterLine($parameters);
 87:         } else {
 88:             $curlOptions[CURLOPT_URL] = $url . '?' . $this->_buildParameterLine($parameters);
 89:             $curlOptions[CURLOPT_POST] = false;
 90:         }
 91: 
 92:         $curlOptions[CURLOPT_USERAGENT] = $this->agent;
 93:         $curlOptions[CURLOPT_COOKIEJAR] = $this->_getCookiesFile();
 94:         $curlOptions[CURLOPT_COOKIEFILE] = $this->_getCookiesFile();
 95:         $curlOptions[CURLOPT_FOLLOWLOCATION] = $this->followLocation;
 96:         $curlOptions[CURLOPT_HEADER] = true;
 97:         $curlOptions[CURLOPT_RETURNTRANSFER] = true;
 98:         $curlOptions[CURLOPT_REFERER] = $this->referer;        
 99: 
100:         $this->referer = $url;
101:         $response = new HttpResponse($curlOptions);
102:         
103:         if ($this->targetResponseDirectory) {
104:             $path = $this->targetResponseDirectory.'/'.(++self::$targetCount).'.html';
105:             file_put_contents($path, $response->getBody());
106:         }
107:         
108:         return $response;
109:     }
110: 
111:     /**
112:      * 
113:      * @return string
114:      */
115:     private function _getCookiesFile() {
116:         if (empty($this->cookiesFile)) {
117:             $this->cookiesFile = tempnam("/tmp", "CURLCOOKIE");
118:         }
119:         return $this->cookiesFile;
120:     }
121: 
122:     /**
123:      * 
124:      * @param array $parameters
125:      * @return string
126:      */
127:     private function _buildParameterLine($parameters) {
128:         $pairs = array();
129:         foreach ($parameters as $key => $value) {
130:             $pairs[] = urlencode($key) . '=' . urlencode($value);
131:         }
132:         return implode('&', $pairs);
133:     }
134: 
135: }
136: 
137: ?>