[tutorial] how to use HttpManager for php + maniascript

[reaby]

Hi, i write this for very simplified example for input/output in gamemode maniascript,
you can use this techniques forexample an external mysql connection <=> maniascript


ManiaScript

declare this as script global variable for your script

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#Include "Libs/Nadeo/Json.Script.txt" as JSON
declare CHttpRequest[] myRequests = CHttpRequest[]; 

do this at beginning or end of the active playloop..
(very simple httprequest manager)

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declare Integer[] toRemove = Integer[];
declare x = 0;

foreach (req in Http.Requests) {
    if (req.IsCompleted) {
        log(req.Result);    
        toRemove.add(x);
    }
    x += 1;
}

foreach (index in toRemove) {    
    Http.Destroy(Http.Requests[index]);    
}
 

do to trigger http request, do anywhere inside the playloop:

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myRequests.add(Http.CreatePost("http://localhost/tm2/test.php", "{" ^JSON::Stringify("player",Event.Player.User, "") ^"}"));

I used this code inside Event foreach loop at Event::onWaypoint
Also
it's very important remeber to add the object tags "{ }" around the json library output...


php

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<?php
file_put_contents("log.txt", $HTTP_RAW_POST_DATA, FILE_APPEND);
$object = (object) json_decode($HTTP_RAW_POST_DATA);

// all you echo, will be sent back to the maniascript...so generate the xml document here
if ($object->player->Login == "reaby") {
    echo "yay!!";
}

print_r($object);  // this will output the recieved object values to your maniaplanet debug window
 ?>

[reaby]

and... little bit more complicated example, using xml for return transport...

ManiaScript

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declare Integer[] toRemove = Integer[];
declare x = 0;
declare CXmlDocument xmlDoc;

foreach (req in Http.Requests) {
    if (req.IsCompleted) {
        xmlDoc = Xml.Create(req.Result);
        log(req.Result);
        declare CXmlNode datas = xmlDoc.GetFirstChild("datas");
        declare CXmlNode medals = datas.GetFirstChild("medals");
        declare CXmlNode record = datas.GetFirstChild("record");
        log(medals.TextContents);
        
        log(record.TextContents);
        
        
        toRemove.add(x);
    }
    x += 1;
}


foreach (index in toRemove) {
    Http.Destroy(Http.Requests[index]);    
}

php

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<?php
$object = (object) json_decode($HTTP_RAW_POST_DATA);
// print_r($object);

$array = array();
$array['login'] = $object->player->Login;
$array['datas'] = array("medals" => 1, "record" => 1337);

echo assocArrayToXML("document", $array);


// ----------------------------------------------------------------------
// this code snipplet is from 
// http://php.net/manual/en/book.simplexml.php#101949
// ----------------------------------------------------------------------
function assocArrayToXML($root_element_name,$ar)
{
    $xml = new SimpleXMLElement("<{$root_element_name}></{$root_element_name}>");
    $f = create_function('$f,$c,$a','
            foreach($a as $k=>$v) {
                if(is_array($v)) {
                    $ch=$c->addChild($k);
                    $f($f,$ch,$v);
                } else {
                    $c->addChild($k,$v);
                }
            }');
    $f($f,$xml,$ar);
    return $xml->asXML();
} 
?>

correction:
Removed Xml-header from simpleXmlElement generation, thanks for noraynea for the correction!

[magnetik]

Just a little remark : you can't really rely on the data sent since your script is more or less open source and there is no auth mecanism at the moment.

We are working on some prototypes that may allow you to do so

[spaii]

We are working on some prototypes that may allow you to do so

Nice to know that