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   1  <?php
   2  
   3  /**
   4  * @package   s9e\TextFormatter
   5  * @copyright Copyright (c) 2010-2022 The s9e authors
   6  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
   7  */
   8  namespace s9e\TextFormatter\Utils\Http\Clients;
   9  
  10  use s9e\TextFormatter\Utils\Http\Client;
  11  
  12  class Curl extends Client
  13  {
  14      /**
  15      * @var resource cURL handle, shared across instances
  16      */
  17      protected static $handle;
  18  
  19      /**
  20      * {@inheritdoc}
  21      */
  22  	public function get($url, array $options = [])
  23      {
  24          $options += ['headers' => []];
  25  
  26          $handle = $this->getHandle();
  27          curl_setopt($handle, CURLOPT_HEADER,     !empty($options['returnHeaders']));
  28          curl_setopt($handle, CURLOPT_HTTPGET,    true);
  29          curl_setopt($handle, CURLOPT_HTTPHEADER, $options['headers']);
  30          curl_setopt($handle, CURLOPT_URL,        $url);
  31  
  32          return curl_exec($handle);
  33      }
  34  
  35      /**
  36      * {@inheritdoc}
  37      */
  38  	public function post($url, array $options = [], $body = '')
  39      {
  40          $options             += ['headers' => []];
  41          $options['headers'][] = 'Content-Length: ' . strlen($body);
  42  
  43          $handle = $this->getHandle();
  44          curl_setopt($handle, CURLOPT_HEADER,     !empty($options['returnHeaders']));
  45          curl_setopt($handle, CURLOPT_HTTPHEADER, $options['headers']);
  46          curl_setopt($handle, CURLOPT_POST,       true);
  47          curl_setopt($handle, CURLOPT_POSTFIELDS, $body);
  48          curl_setopt($handle, CURLOPT_URL,        $url);
  49  
  50          return curl_exec($handle);
  51      }
  52  
  53      /**
  54      * Return a globally cached cURL handle, configured for current instance
  55      *
  56      * @return resource
  57      */
  58  	protected function getHandle()
  59      {
  60          if (!isset(self::$handle))
  61          {
  62              self::$handle = $this->getNewHandle();
  63          }
  64  
  65          curl_setopt(self::$handle, CURLOPT_SSL_VERIFYPEER, $this->sslVerifyPeer);
  66          curl_setopt(self::$handle, CURLOPT_TIMEOUT,        $this->timeout);
  67  
  68          return self::$handle;
  69      }
  70  
  71      /**
  72      * Create and return a new cURL handle
  73      *
  74      * @return resource
  75      */
  76  	protected function getNewHandle()
  77      {
  78          $handle = curl_init();
  79          curl_setopt($handle, CURLOPT_ENCODING,       '');
  80          curl_setopt($handle, CURLOPT_FAILONERROR,    true);
  81          curl_setopt($handle, CURLOPT_FOLLOWLOCATION, true);
  82          curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
  83  
  84          return $handle;
  85      }
  86  }