ilHttpRequest Class Reference

ilHttpRequest class More...

Collaboration diagram for ilHttpRequest:

Public Member Functions
	_scan_url ()
	__construct ($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.

Constructor & Destructor Documentation

__construct()

ilHttpRequest::__construct

(

$url

)

Definition at line 71 of file class.ilHttpRequest.php.

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

References $url, and _scan_url().

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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, and $req.

Referenced by __construct().

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downloadToString()

ilHttpRequest::downloadToString

(

)

Definition at line 78 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, $http, $req, and $response.

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