ilHttpRequest Class Reference

ilHttpRequest class More...

Collaboration diagram for ilHttpRequest:

Public Member Functions
	_scan_url ()
	ilHttpRequest ($url)
	downloadToString ()

Data Fields
	$_fp
	$_url
	$_host
	$_protocol
	$_uri
	$_port

Detailed Description

ilHttpRequest class

Class to retrieve an HTTP request

Author

Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m

Version

$Id$

Definition at line 33 of file class.ilHttpRequest.php.

Member Function Documentation

_scan_url()

ilHttpRequest::_scan_url

(

)

Definition at line 43 of file class.ilHttpRequest.php.

        {
                $req = $this->_url;
                
                $pos = strpos($req, '://');
                $this->_protocol = strtolower(substr($req, 0, $pos));
                
                $req = substr($req, $pos+3);
                $pos = strpos($req, '/');
                if($pos === false) $pos = strlen($req);
                $host = substr($req, 0, $pos);
                
                if(strpos($host, ':') !== false)
                {
                        list($this->_host, $this->_port) = explode(':', $host);
                }
                else
                {
                        $this->_host = $host;
                        $this->_port = ($this->_protocol == 'https') ? 443 : 80;
                }
                
                $this->_uri = substr($req, $pos);
                if($this->_uri == '') $this->_uri = '/';
        }

References $_url.

Referenced by ilHttpRequest().

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downloadToString()

ilHttpRequest::downloadToString

(

)

Definition at line 77 of file class.ilHttpRequest.php.

        {
                $crlf = "\r\n";
                
                // generate request
                $req = 'GET ' . $this->_uri . ' HTTP/1.0' . $crlf
                . 'Host: ' . $this->_host . $crlf
                .  $crlf;
 
                // fetch
                $this->_fp = fsockopen(($this->_protocol == 'https' ? 'ssl://' : '') . $this->_host, $this->_port);
                fwrite($this->_fp, $req);
                while(is_resource($this->_fp) && $this->_fp && !feof($this->_fp))
                {
                        $response .= fread($this->_fp, 1024);
                }
                fclose($this->_fp);
                
                // split header and body
                $pos = strpos($response, $crlf . $crlf);
                if($pos === false) return($response);
                $header = substr($response, 0, $pos);
                $body = substr($response, $pos + 2 * strlen($crlf));
                
                // parse headers
                $headers = array();
                $lines = explode($crlf, $header);
                foreach($lines as $line)
                {
                        if(($pos = strpos($line, ':')) !== false)
                        {
                                $headers[strtolower(trim(substr($line, 0, $pos)))] = trim(substr($line, $pos+1));
                        }
                }
                
                // redirection?
                if(isset($headers['location']))
                {
                        $http = new ilHttpRequest($headers['location']);
                        return($http->DownloadToString($http));
                }
                else
                {
                        return($body);
                }
        }

References $header, and ilHttpRequest().

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ilHttpRequest()

ilHttpRequest::ilHttpRequest

(

$url

)

Definition at line 70 of file class.ilHttpRequest.php.

        {
                $this->_url = $url;
                $this->_scan_url();
        }

References $url, and _scan_url().

Referenced by downloadToString().

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Field Documentation

$_fp

ilHttpRequest::$_fp

Definition at line 35 of file class.ilHttpRequest.php.

$_host

ilHttpRequest::$_host

Definition at line 37 of file class.ilHttpRequest.php.

$_port

ilHttpRequest::$_port

Definition at line 40 of file class.ilHttpRequest.php.

$_protocol

ilHttpRequest::$_protocol

Definition at line 38 of file class.ilHttpRequest.php.

$_uri

ilHttpRequest::$_uri

Definition at line 39 of file class.ilHttpRequest.php.

$_url

ilHttpRequest::$_url

Definition at line 36 of file class.ilHttpRequest.php.

Referenced by _scan_url().

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The documentation for this class was generated from the following file:

• setup/classes/class.ilHttpRequest.php