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  1. <?php
  2. 	class Request
  3. 	{
  4. 		var $_fp;
  5. 		var $_url;
  6. 		var $_host;
  7. 		var $_protocol;
  8. 		var $_uri;
  9. 		var $_port;
  10.  
  11. 		private function _scan_url()
  12. 		{
  13. 			$req = $this->_url;
  14. 			$pos = strpos($req, '://');
  15. 			$this->_protocol = strtolower(substr($req, 0, $pos));
  16. 			$req = substr($req, $pos+3);
  17. 			$pos = strpos($req, '/');
  18. 			if($pos === false)
  19. 			{
  20. 				$pos = strlen($req);
  21. 			}
  22. 			$host = substr($req, 0, $pos);
  23. 			if(strpos($host, ':') !== false)
  24. 			{
  25. 				list($this->_host, $this->_port) = explode(':', $host);
  26. 			}
  27. 			else
  28. 			{
  29. 				$this->_host = $host;
  30. 				$this->_port = ($this->_protocol == 'https') ? 443 : 80;
  31. 			}
  32. 			$this->_uri = substr($req, $pos);
  33. 			if($this->_uri == '')
  34. 			{
  35. 				$this->_uri = '/';
  36. 			}
  37. 		}
  38.  
  39. 		//constructor
  40. 		function Request($url)
  41. 		{
  42. 			$this->_url = $url;
  43. 			$this->_scan_url();
  44. 		}
  45.  
  46. 		//download URL to string
  47. 		function DownloadToString()
  48. 		{
  49. 			$crlf = "\r\n";
  50. 			//generate request
  51. 			$response = '';
  52. 			$req = 'GET '.$this->_uri.' HTTP/1.0'.$crlf. 'Host: '.$this->_host.$crlf.
  53. 				'User-Agent: Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7'.$crlf.$crlf;
  54. 			$this->_fp = fsockopen(($this->_protocol == 'https' ? 'ssl://' : '') . $this->_host, $this->_port);
  55. 			fwrite($this->_fp, $req);
  56. 			while(is_resource($this->_fp) && $this->_fp && !feof($this->_fp))
  57. 			{
  58. 				$response .= fread($this->_fp, 1024);
  59. 			}
  60. 			fclose($this->_fp);
  61. 			//split header and body
  62. 			$pos = strpos($response, $crlf.$crlf);
  63. 			if($pos === false)
  64. 			{
  65. 				return $response;
  66. 			}
  67. 			$header = substr($response, 0, $pos);
  68. 			$body = substr($response, $pos + 2*strlen($crlf));
  69. 			//parse headers
  70. 			$headers = array();
  71. 			$lines = explode($crlf, $header);
  72. 			foreach($lines as $line)
  73. 			{
  74. 				if(($pos = strpos($line, ':')) !== false)
  75. 				{
  76. 					$headers[strtolower(trim(substr($line, 0, $pos)))] = trim(substr($line, $pos+1));
  77. 				}
  78. 			}
  79. 			//redirection
  80. 			if(isset($headers['location']))
  81. 			{
  82. 				$http = new HTTPRequest($headers['location']);
  83. 				return($http->DownloadToString($http));
  84. 			}
  85. 			return $body;
  86. 		}
  87.  
  88. 		function DownloadHeadersOnly()
  89. 		{
  90. 			$crlf = "\r\n";
  91. 			//generate request
  92. 			$response = '';
  93. 			$req = 'GET '.$this->_uri.' HTTP/1.0'.$crlf.'Host: '.$this->_host.$crlf.$crlf;
  94. 			$this->_fp = fsockopen(($this->_protocol == 'https' ? 'ssl://' : '') . $this->_host, $this->_port);
  95. 			fwrite($this->_fp, $req);
  96. 			while(is_resource($this->_fp) && $this->_fp && !feof($this->_fp))
  97. 			{
  98. 				$response .= fread($this->_fp, 1024);
  99. 			}
  100. 			fclose($this->_fp);
  101. 			//split header and body
  102. 			$pos = strpos($response, $crlf.$crlf);
  103. 			if($pos === false)
  104. 			{
  105. 				return $response;
  106. 			}
  107. 			$header = substr($response, 0, $pos);
  108. 			$body = substr($response, $pos + 2*strlen($crlf));
  109. 			$headers = array();
  110. 			$lines = explode($crlf, $header);
  111. 			foreach($lines as $line)
  112. 			{
  113. 				if(($pos = strpos($line, ':')) !== false)
  114. 				{
  115. 					$headers[strtolower(trim(substr($line, 0, $pos)))] = trim(substr($line, $pos+1));
  116. 				}
  117. 			}
  118. 			return $headers;
  119. 		}
  120. 	}
  121. ?>
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https://ideone.com/Q1Zfl
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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