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   1  <?php
   2  /**
   3   * This is a PHP library that handles calling reCAPTCHA.
   4   *
   5   * @copyright Copyright (c) 2015, Google Inc.
   6   * @link      http://www.google.com/recaptcha
   7   *
   8   * Permission is hereby granted, free of charge, to any person obtaining a copy
   9   * of this software and associated documentation files (the "Software"), to deal
  10   * in the Software without restriction, including without limitation the rights
  11   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12   * copies of the Software, and to permit persons to whom the Software is
  13   * furnished to do so, subject to the following conditions:
  14   *
  15   * The above copyright notice and this permission notice shall be included in
  16   * all copies or substantial portions of the Software.
  17   *
  18   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24   * THE SOFTWARE.
  25   */
  26  
  27  namespace ReCaptcha\RequestMethod;
  28  
  29  /**
  30   * Convenience wrapper around native socket and file functions to allow for
  31   * mocking.
  32   */
  33  class Socket
  34  {
  35      private $handle = null;
  36  
  37      /**
  38       * fsockopen
  39       * 
  40       * @see http://php.net/fsockopen
  41       * @param string $hostname
  42       * @param int $port
  43       * @param int $errno
  44       * @param string $errstr
  45       * @param float $timeout
  46       * @return resource
  47       */
  48      public function fsockopen($hostname, $port = -1, &$errno = 0, &$errstr = '', $timeout = null)
  49      {
  50          $this->handle = fsockopen($hostname, $port, $errno, $errstr, (is_null($timeout) ? ini_get("default_socket_timeout") : $timeout));
  51  
  52          if ($this->handle != false && $errno === 0 && $errstr === '') {
  53              return $this->handle;
  54          } else {
  55              return false;
  56          }
  57      }
  58  
  59      /**
  60       * fwrite
  61       * 
  62       * @see http://php.net/fwrite
  63       * @param string $string
  64       * @param int $length
  65       * @return int | bool
  66       */
  67      public function fwrite($string, $length = null)
  68      {
  69          return fwrite($this->handle, $string, (is_null($length) ? strlen($string) : $length));
  70      }
  71  
  72      /**
  73       * fgets
  74       * 
  75       * @see http://php.net/fgets
  76       * @param int $length
  77       * @return string
  78       */
  79      public function fgets($length = null)
  80      {
  81          return fgets($this->handle, $length);
  82      }
  83  
  84      /**
  85       * feof
  86       * 
  87       * @see http://php.net/feof
  88       * @return bool
  89       */
  90      public function feof()
  91      {
  92          return feof($this->handle);
  93      }
  94  
  95      /**
  96       * fclose
  97       * 
  98       * @see http://php.net/fclose
  99       * @return bool
 100       */
 101      public function fclose()
 102      {
 103          return fclose($this->handle);
 104      }
 105  }