I have the following code:
function posturl($URL, $post_data, $referrer = "") {
$URL_Info = parse_url ( $URL );
// Building referrer
if ($referrer == "")
$referrer = $_SERVER["SCRIPT_URI"];
// making string from $data
foreach ( $post_data as $key => $value )
$values [] = "$key=" . urlencode ( $value );
$data_string = implode ( "&", $values );
if (! isset ( $URL_Info ["port"] ))
$URL_Info ["port"] = 80;
$request .= "POST " . $URL_Info ["path"] . " HTTP/1.1\n";
$request .= "Host: " . $URL_Info ["host"] . "\n";
$request .= "Referer: $referrer\n";
$request .= "Content-type: application/x-www-form-urlencoded\n";
$request .= "Content-length: " . strlen ( $data_string ) . "\n";
$request .= "Connection: close\n";
$request .= "\n";
$request .= $data_string . "\n";
echo ">>>> Request:\n";
echo($request);
var_dump($URL_Info);
$fp = fsockopen ( $URL_Info ["host"], $URL_Info ["port"] );
fputs ( $fp, $request );
while ( ! feof ( $fp ) ) {
$result .= fgets ( $fp, 128 );
}
fclose ( $fp );
$result=substr($result, strpos($result, "\r\n\r\n"));
return $result;
}
And the following request:
POST /fia/interface/product_use_action.php HTTP/1.1
Host: orlof.is
Referer:
Content-type: application/x-www-form-urlencoded
Content-length: 111
Connection: close
task=check&ticket_number=EDDAFIA073&secret_code=htl440&seller_number=104&ternimal_number=Edda&global_language=8
I get the following response:
My question:
Is there something wrong with the request?
Also I have the same code and the same request but different Host, and I don't get errors there.
POST /fia/interface/product_use_action.php HTTP/1.1
Host: test.orlof.is
Referer:
Content-type: application/x-www-form-urlencoded
Content-length: 111
Connection: close
task=check&ticket_number=EDDAFIA073&secret_code=htl440&seller_number=104&ternimal_number=Edda&global_language=8
As we can see the only difference is test.orlof.is instead of orlof.is.
Thanks.
I'm not sure if this is really the problem, but there are two obviously wrong things with your request:
$request .= "POST " . $URL_Info ["path"] . " HTTP/1.1\n";
The end of line with HTTP should be \r\n, not \n. This is true for all line endings including the separator between HTTP header and body.
$request .= "Content-length: " . strlen ( $data_string ) . "\n"; ... $request .= $data_string . "\n";
You specify the length of the body with strlen ( $data_string ) but you actually send one byte more. There is no need to send a \n at the end of the body but when you do you should account for this in the content-length header too.
Apart from that you are doing a HTTP/1.1 request but expect that you can simply treat the HTTP response body as the final data. But, with HTTP/1.1 the server can only used chunked transfer encoding, i.e. the response will be in chunks with each chunk having a size prefix. If you don't want to deal with this better use HTTP/1.0.
As to why it works with one server and not the other: it might be because one server might have a more forgiving implementation of the HTTP standard and the other a more strict. In any case the ultimate source for how use HTTP is the standard and not some examples you've seen somewhere.