Fsockopen to an ASP script problem

[Matt_Pearson]

Hi All,

I've beenusing fsockopen for a while to perform POST operations in PHP

Currently, I'm trying to post to a windows server that uses ASP, and it doesn't want to know.

I send it:

POST /uk/lookup.asmx/NearestRadial HTTP/1.1
Host: services.postcodeanywhere.co.uk
Content-Type: application/x-www-form-urlencoded
Connection: close
Cache-Control: no-cache
Content-Length: 218

Origin=m44+6aj&Destination=M30+0AR&Destination=CW9+5HD&Destination=WN3+4NJ&Destination=M17+8PG&Destination=M33+3QN&Radius=5&Items=0&Units=MILES&AccountCode=HENDE11111&LicenseCode=RG17-GJ99-RB49-GD31&MachineId=webserver

And it replies:

HTTP/1.1 100 Continue

HTTP/1.1 500 Internal Server Error.
Connection: close
Date: Sun, 02 May 2004 11:20:40 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 1.1.4322
Cache-Control: private
Content-Type: text/plain; charset=utf-8
Content-Length: 491

System.NullReferenceException: Object reference not set to an instance of an object.
at System.Web.Services.Protocols.ValueCollectionParameterReader.Read(NameValueCollection collection)
at System.Web.Services.Protocols.HtmlFormParameterReader.Read(HttpRequest request)
at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
at System.Web.Services.Protocols.WebServiceHandler.Invoke()
at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()

funny, how it first starts to send a "100 continue" message before it changes its mind and sends the eternal server error.

I'm assuming that there's something in the way I format the header thatASP doesn't like.

here's my code:

function botherPCAnywhere($server, $port, $url, $origin,$destinations,$vars){

//define variables

$urlencoded = "";
$return=true;

//encode the origin
$urlencoded.= urlencode("Origin") . "=" . urlencode($origin). "&";

//encode the destinations

foreach ($destinations as $destination){

$urlencoded.= urlencode("Destination") . "=" . urlencode($destination). "&";
}

//encode the other values
//
while (list($key,$value) = each($vars))	$urlencoded.= urlencode($key) . "=" . urlencode($value) . "&";

$urlencoded = substr($urlencoded,0,-1);

$urlencoded.="\r\n\r\n";

$content_length = strlen($urlencoded);

//format the info into HTTP headers
//
$headers.= "POST $url HTTP/1.1\r\n";
$headers.= "Host: $server\r\n";
$headers.= "Content-Type: application/x-www-form-urlencoded\r\n";
$headers.= "Connection: close\r\n";
$headers.= "Content-Length: $content_length\r\n\r\n";

echo $headers;
echo $urlencoded;

print "the server said<br>";


//open the socket

$fp = fsockopen($server, $port, $errno, $errstr);


//if that didn't work, return false


if (!$fp) {

print "the Socket said: $errstr ($errno)<br>\n";
$return =false;

}


//send the headers

fputs($fp, $headers);

//send the POST data 

fputs($fp, $urlencoded);



//untill we hit the end of file (eof) set the return var to the last line sent

//$ret = "";
while (!feof($fp)) {

echo fgets ($fp,4096);

}


//close the socket  

fclose($fp);



return $return;


}//# end http_post function ########################################

Thanks for any help

Matt