Good afternoon friends!
I am a programmer and I'm a little time learning about the Unity and the game development universe. I came a doubt that I could not find the answer very well.
What is the best architecture or solution to work with a mobile multiplayer game using a restful webservice? It's possible? It is the best way to do something online multiplayer?
I've been studying a bit WWWForm class and tried to simulate sending data via JSON using JSONObject but without much success. I can not actually send a javascript object.
An example:
public void enviar(JSONObject json, Objeto obj)
{
string url = "http://myurl/unity.php";
WWWForm form = new WWWForm();
form.AddField("var1", "[{\"Nome\":\""+obj.name+"\"}]");
WWW www = new WWW(url, form);
StartCoroutine(WaitForRequest(www));
}
IEnumerator WaitForRequest(WWW www)
{
yield return www;
// check for errors
if(www.error == null)
{
Debug.Log("WWW Ok!: " + www.text);
} else {
Debug.Log("WWW Error: "+ www.error);
}
}
and my PHP file I have the following test:
$t = $_POST['var1'];
$novot = json_decode($t);
foreach ($novot as $novo){
$fp = fopen("bloco1.txt", "a");
$escreve = fwrite($fp, $novo);
fclose($fp);
}
All I can back is a stdClass, I can handle, but that to me is something very manual. There is no simple and correct way of working with webservices?
Are you asking how send more more rich / structured data back and forth? Yes, JSON would be an obvious choice.
REST API's are simple, client-server, stateless. etc. Typical web paradigm. There are some frameworks that can help with authentication and wrapping object-oriented code to expose it as a service. Many of these fall into the 'mirco framework' category. Slim for example. Zend Framework has some related classes too. Zend also has a standalone offering called pigility - not suggesting you purchase it but it could give you some ideas.
I'd search Git Hub for "rest server" or similar.
Also if you are not writing good OOP code you will continue to find things "very manual". The DRY (Don't Repeat Yourself) principal is a good one to adhere to when starting out.
Best of luck. Been having fun myself with Unity3d of late teaching my little brother some coding skills.
Unity doesn't have the best built in WebServices, but developers have built a lot of plugins that are on the Asset Store. Additionally, I use the BestHTTP plugin, and absolutely love it! (although it does cost money).
Related
So I was wondering if you could use F# with fsi.exe to run server side scripts to serve html pages. Basically, could you use it like php? If you can, would it be very practical to use it like that? Also, even if this is not very practical, I would be interested in if this would somehow be possible.
PHP and for that matter Classic ASP pages on a web site typically map one-to-one to script files on the file system on a web server.
If you implement ASP.Net's IHttpHandler you could execute F# scripts on the file system in response to HTTP requests. The IHttpHandler's ProcessRequest method passes a HttpContext instance which could be used for reading the Request arguments and setting the Response. This could be passed to a well-known function implemented, say "handler", in the F# script.
type HttpHandler() =
interface IHttpHandler with
member this.ProcessRequest(context:HttpContext) =
let localpath = context.Server.MapPath(context.Request.FilePath)
let a = compile localpath // where compile creates an assembly from an fsx file
let mi = getHandler a // where getHandler gets a function using reflection
mi.Invoke(null, [|context|])
The F# Compiler Services provides FSharperChecker API which could be used to compile F# script files to dynamic assemblies.
let compile path =
let checker = FSharpChecker.Create()
let errors, exitCode, dynamicAssembly =
checker.CompileToDynamicAssembly([| "-o"; path; "-a"; path |], execute=None)
|> Async.RunSynchronously
dynamicAssembly
The dynamic assemblies could then be used to invoke functions via reflection, passing the HttpContext value.
let getHandler a =
a.GetTypes() |> Seq.pick (fun ty ->
match ty.GetMethod("handler", [|typeof<System.Web.HttpContext>|]) with
| null -> None
| mi -> Some mi
)
So that your script file might look something like this:
let handler (context:System.Web.HttpContext) =
context.Response.Write("Hello World")
Finally there are a plethora of F# DSLS for generating HTML from code, I have a simple one called FsHtml.
Giraffe with the Razor view engine might be the best fit for what you're after: https://github.com/giraffe-fsharp/Giraffe.Razor
It provides a nice way to define API routes functionally and a nice clean syntax for HTML templates.
It does use asp.net core though - I'm not sure what you're trying to achieve by avoiding this so apologies if my answer is a little off-target.
You can compile .fsx scripts with Fable (see here: https://axxes.com/en/net/compiling-f-scripts-with-fable-2-2/) as Just another metaprogrammer has mentioned, though personally it's not my preferred approach (I'm happy with .fs) and I'd argue that it's more akin to react / jsx since it's client side and uses react under the hood.
I once was a Web-Designer who knew HTML/CSS. Now I'm a 3D animator, but I want to get back into the Web-Developer world.
But there's so much new to learn. E.g. flat file cms. Wow!
But my question for now is how I read an API, create the right PHP file to pull an XML file and put that data onto a web page.
Specificially I'm interested in this mobile.de API:
http://services.mobile.de/manual/search-api.html
And it seems that this is the XML that I need:
http://services.mobile.de/schema/ad-1.0.xsd
What are the next steps to get this beginner's project going?
I guess I need some sort of PHP file that uses GET and some sort of authentication. How can I test, if and what will come back?
And how do I use the pulled information to put in into a new page?
Or is my thinking all wrong?
Many thanks in advance.
Ben
Little bit you can understand through this post and answers on this post:
How to echo xml file in php
If you don't mind using already created library, please check : PHP Curl Class
Taken from the readme:
PHP Curl Class is an object-oriented wrapper of the PHP cURL extension that makes it easy to send HTTP requests and integrate with web APIs.
And this code snippet (also taken from the readme) could be your starting point:
$curl = new Curl();
$curl->setBasicAuthentication('username', 'password');
$curl->setUserAgent('');
$curl->setReferrer('');
$curl->setHeader('X-Requested-With', 'XMLHttpRequest');
$curl->setCookie('key', 'value');
$curl->get('http://www.example.com/');
if ($curl->error) {
echo 'Error: ' . $curl->errorCode . ': ' . $curl->errorMessage;
}
else {
echo $curl->response;
}
var_dump($curl->requestHeaders);
var_dump($curl->responseHeaders);
Oh, and it's an unlicensed license type software.
My question may be incorrect or even strange, but I'm really interested in such programming experience, and there is two reasons for that:
As a PHP developer I should do my work so I can't just switch to other programming language that easy; however, there is a lot of things that causes a lot of pain to write in PHP.
As a Python beginner I'm already a huge fan of this language, and there are things that can be done a lot easier and, IMHO, in more righteous way that PHP implementation suggests.
For example, I've been writing a broadcasting multiple-connection socket server in PHP, and anybody who has done similar thing would understand how many restrictions will cause such solution - detecting disconnect if client just closed browser is dreadful. Looking at broadcasting server implementations in Python makes me feel more comfortable.
Also, a think about applications that could work, say, in offline mode to gather user input and sending it to the processing server later, or stand-alone applications that are connected to a website, etc.
Searching the web is poor in this case. All I've found is PiP, but it was released too long ago and not documented well - there is probably a good reason for that.
I would be glad to hear any thoughts about this, because I understand that this idea is kind of crazy and looks like not a lot of people is concerned about it.
Some time ago I ran into a similar dilemma. The solution I found was use xml-rpc to expose python objects and methods so I can use them from php scripts. Here I left you the documentation of both.
Python: Python xml-rpc.
PHP: XML-PHP
EDIT: Adding example. The examples are the same that in the documentation. I just changed them a bit to make them shorter. In client.php I only call the div function from python server. Add the others your self.
server.py
from SimpleXMLRPCServer import SimpleXMLRPCServer
from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler
# Restrict to a particular path.
class RequestHandler(SimpleXMLRPCRequestHandler):
rpc_paths = ('/RPC2',)
# Create server
server = SimpleXMLRPCServer(("localhost", 8000),
requestHandler=RequestHandler)
server.register_introspection_functions()
# Register pow() function; this will use the value of
# pow.__name__ as the name, which is just 'pow'.
server.register_function(pow)
# Register a function under a different name
def adder_function(x,y):
return x + y
server.register_function(adder_function, 'add')
# Register an instance; all the methods of the instance are
# published as XML-RPC methods (in this case, just 'div').
class MyFuncs:
def div(self, x, y):
return x // y
server.register_instance(MyFuncs())
# Run the server's main loop
server.serve_forever()
client.php
<html>
<head><title>xmlrpc</title></head>
<body>
<h1>Php - Python - XMLRPC Demo</h1>
<?php
// Note that the path to xmlrpc.inc file is relative.
// to this file.
include("xmlrpc/lib/xmlrpc.inc");
// Params to python function 10 and 5.
// Build the message you want send.
// The message takes the function name and the params. See doc for details on how
// build params, is pretty easy.
$msg = new xmlrpcmsg( "div", array(new xmlrpcval(10, "int"), new xmlrpcval(5, "int")) );
// Build a XMLRCP - Client.
$client = new xmlrpc_client("/RPC2", "localhost", 8000);
// And send the message.
$response = $client->send($msg);
// From here all should look familier to you.
if(!$response->faultCode())
{
$v=$response->value();
echo "The result from div is" . htmlspecialchars($v->scalarval());
}
else
{
print "An error occurred: ";
print "Code: " . htmlspecialchars($r->faultCode())
. " Reason: '" . htmlspecialchars($r->faultString()) . "'</pre><br/>";
}
?>
<hr/>
</body>
</html>
I got an application which uses flash for it's interfaces, and I want to extract information from this application, and parse/use it in my own application (which processes the data, stores the essentials in a mysqldb and so on).
The .swf files are written in AS2 and can be modded quite easily.
So my goal is to send information (really just information. Being able to send numbers (of a at least decent size) would enable me to implement my own protocol of encoding and partitioning) by any means, I am certainly not picky about the means.
Here is my current approach (not my own idea, credits to koreanrandom.org. I merely use their source to learn):
use DokanLib to mount a virtual filesystem (and implement the getFileInformation-handler)
use LoadVars inside the AS2-Environment with parameters like "../.logger/#encoded_information"
since getFileInformation gets the accessed filename as a parameter, I can decode it, put several ones back together (if they had to be splitted, windows does not seem to like filenames with several hundred characters length) and use the decoded data
However, my application causes bluescreens quite often (dont ask why. i got no clue, the bluescreen messages are always different) and the devs at koreanrandom.org dont like being asked too many questions, so i came to ask here for other means to pass information from a sandboxed flash-environment to a prepared listener.
I started thinking about weird stuff (ok, abusing a virtual filesystem & filenames as a means of transport for information might be weird too - but it is still a great idea imo) like provoking certain windows-functions to be called and work with global hooks, but i didnt grasp a serious plan yet.
The "usual" methods like accessing webservers via methods like this dont appear to work:
var target_mc = createEmptyMovieClip("target_mc", this.getNextHighestDepth());
loadVariables("http://127.0.0.1/Tools/indata.php", "target_mc", "GET");
(indata.php would have created a file, if it was accessed, but it didnt.)
XMLSocket doesnt work either, i tried the following code sample (using netcat -l on port 12345):
Logger.add("begin");
var theSocket:XMLSocket = new XMLSocket();
theSocket.onConnect = function(myStatus) {
if (myStatus) {
Logger.add("XMLSocket sucessfully connected")
} else {
Logger.add("XMLSocket NO CONNECTION");
}
};
theSocket.connect("127.0.0.1", 12345);
var myXML:XML = new XML();
var mySend = myXML.createElement("thenode");
mySend.attributes.myData = "someData";
myXML.appendChild(mySend);
theSocket.send(myXML);
Logger.add("socket sent");
doesnt work at all either, the output of the logger was just begin and socket sent
Annotation: the logger was created by the guys from koreanrandom.org and relies on their dokan implementation, which never caused a bluescreen for me. cant spot my mistake in my implementation though, so i started to look for other means of solving my problem.
EDIT: what the hell is wrong with your "quality messages system"? appearently it didnt like me using the tags "escaping" and/or "information".
hmm, hard to say, try sendAndLoad instead of loadVariables
example:
var result_lv:LoadVars = new LoadVars();
var send_lv:LoadVars = new LoadVars();
send_lv.variable1=value1;
send_lv.variable2=value2;
f=this;//zachytka
result_lv.onLoad = function(success:Boolean) {
if (success) {
trace("ok");
} else {
trace("error");
}
};
send_lv.sendAndLoad("http://127.0.0.1/Tools/indata.php", result_lv, "GET"); //you may also use POST
this should work. the reason it's not working may also be flash security settings. try either moving the stuff to a real server or open up the flash settings manager (there's an alternative online version too) and add the 127.0.0.1 to trusted domains and/or testing file location to the trusted locations (i use C:*)
I'm using the Zend framework and the openid selector from http://code.google.com/p/openid-selector/ - however I find I can't login using sites like Google and Yahoo as they use direct identity based login system whereby one is just redirected to a url as opposed to entering a unique url of their own for authentication.
I've checked out many options and hacks but none of them seem to work. How can i get this to work here btw - how is it implemented at stack overflow? I could really use all the help here guys..
Edit
Well the issue here is that from what I have noticed is that the Zend OpenID class doesn't support OpenID 2.0 the thing is that a typical open ID providor gives you a unique url such as your-name.openid-providor.com or openid-providor.com/your-name and the Zend OpenId class just parses through that url and then redirects you to the providor website where upon authentication you are redirected back.
In the case of Yahoo and google - you don't enter a unique url instead you are redirected to the providors login site and upon login and authentication you are redirected back - so basically whats happeining is that the zend_openID object when it parses to tell who the providor is it fails to tell from the general url itself. Like when you click on teh Google link it redirects you to https://www.google.com/accounts/o8/id
Its more an issue with the zend openid object here and there isn't any help on zend related forums - so I was wondering if someone had already hacked or had an alteration I could make to the class to accomplish this. Sorry if I'm missing something but I'm kinda new to this and programming with open ID and have just started to get my feet wet.
Thanks for the follow up - I did check into RPX a while back and they do have a php class but I wasnt able to check it out plus I really just want to for now get the code selector used as on stackoverflow to work with Yahoo and Google authentication. There has to be some kind of way to tweak the parsing which the Zend OpenID class uses as it runs a series of regular expression checks to make a discovery.
Little late to the game but I was able to get this working with some hacks I found around the interwebs.
First. Yahoo. To get Yahoo working all I had to do was change the JavaScript to use me.yahoo.com instead of just yahoo.com and it worked perfectly with the version of the Zend Framework I'm using. Unfortunately Google still wasn't, so some hacking was in order.
All of these changes go in Zend/OpenId/Consumer.php
First, in the _discovery method add the following on the series of preg_match checks that starts at around line 740.
} else if (preg_match('/<URI>([^<]+)<\/URI>/i', $response, $r)) {
$version = 2.0;
$server = $r[1];
I added this right before the return false; statement that's in the else {} block.
Second, in the _checkId method you'll need to add 3 new blocks (I haven't dug around enough to know what causes each of these three cases to be called, so I covered all to be on the safe side.
Inside the $version <= 2.0 block, you'll find an if/else if/else block. In the first if statement ($this->_session !== null) add this to the end:
if ($server == 'https://www.google.com/accounts/o8/ud') {
$this->_session->identity = 'http://specs.openid.net/auth/2.0/identifier_select';
$this->_session->claimed_id = 'http://specs.openid.net/auth/2.0/identifier_select';
}
In the else if (defined('SID') block add this to the end:
if ($server == 'https://www.google.com/accounts/o8/ud') {
$_SESSION['zend_openid']['identity'] = 'http://specs.openid.net/auth/2.0/identifier_select';
$_SESSION['zend_openid']['claimed_id'] = 'http://specs.openid.net/auth/2.0/identifier_select';
}
And then after the else block (so outside the if/else if/else block all together, but still inside the $version <= 2.0 block) add this:
if ($server == 'https://www.google.com/accounts/o8/ud') {
$params['openid.identity'] = 'http://specs.openid.net/auth/2.0/identifier_select';
$params['openid.claimed_id'] = 'http://specs.openid.net/auth/2.0/identifier_select';
}
Link to the bug in Zend Framework Issue Tracker
I need to use Google's OpenID stuff, and I tried Steven's code and couldn't get it to work as-is. I've made some modifications.
The _discovery change method is still the same:
Zend/OpenId/Consumer.php, line 765, add:
} else if (preg_match('/<URI>([^<]+)<\/URI>/i', $response, $r)) {
$version = 2.0;
$server = $r[1];
The rest is different, though:
Zend/OpenId/Consumer.php, line 859 (after making the above change), add:
if (stristr($server, 'https://www.google.com/') !== false) {
$id = 'http://specs.openid.net/auth/2.0/identifier_select';
$claimedId = 'http://specs.openid.net/auth/2.0/identifier_select';
}
This is right before:
$params['openid.identity'] = $id;
$params['openid.claimed_id'] = $claimedId;
And to get it to return the ID, once authorized:
Zend/Auth/Adapter/OpenId.php, line 278:
if(isset($_REQUEST['openid_identity']))
{
$this->_id = $_REQUEST['openid_identity'];
$id = $this->_id;
}
This is right before:
return new Zend_Auth_Result(
Zend_Auth_Result::SUCCESS,
$id,
array("Authentication successful"));
Note that I have not thoroughly tested this code. The code below is even more shakey.
I have spent more time and I've gotten it to work with my Google Apps domain with the following changes, in addition to the above:
Zend/OpenId/Consumer.php, line 734
$discovery_url = $id;
if(strpos($discovery_url, '/', strpos($discovery_url, '//')+2) !== false) {
$discovery_url = substr($discovery_url, 0, strpos($discovery_url, '/', strpos($discovery_url, '//')+2));
}
$discovery_url .= '/.well-known/host-meta';
$response = $this->_httpRequest($discovery_url, 'GET', array(), $status);
if ($status === 200 && is_string($response)) {
if (preg_match('/Link: <([^><]+)>/i', $response, $r)) {
$id = $r[1];
}
}
This is right after:
/* TODO: OpenID 2.0 (7.3) XRI and Yadis discovery */
I believe that was the only change I had to make. I'm pretty sure there's supposed to be some checking involved with the above for security reasons, but I haven't looked far enough into it to see what they would be.
Going over all the advice provided - I've decided to ditch using the zend_openid class [ sorry about that zend ] and instead I've switched to using JanRains OpenID library. Its taken a few hours to get it up and running with my project but atleast its working like a breeze. Had to make a lot of hacking and a bit of code spill over to get it working but its worth it.
I couldn't use any of Zend adapters with Zend-Auth to settle this new code library in as the library did the authentication on its own. SO I hacked and made a generic adapter that just returned a filled zend_result set to the Auth object thus I authenticate using my library and merely store the result in the Auth object pulling a bit of a fast one one the Zend-Auth object rather than have to rewrite my code again.
The library is available at http://openidenabled.com/php-openid/
Thanks for all the help guys.
I'm dealing with similar issues. I'm planning on using RPX now with Zend Framework. Maybe I'll write an adapter. Just to let you know.
Info: 'RPS now' provides an all-in-one interface and UI for user registration with
facebook
Google
Yahoo
mySpaceID
Windows LiveID
OpenID
aol
I'm pretty sure that Yahoo only works with OpenID 2.0. If you want to support Yahoo users, you're going to have to upgrade to a library with 2.0 support. That's going to be a matter of more than tweaking some parsing.
Did you check out the manual -- Zend_OpenId_Consumer basics? Check out 38.2.2 on that page and let me know if this helps, because it should.
Specifically, I don't know if Google offers OpenID. I know that Yahoo worked because I've tried it a while back.
Thanks for the information. I started by using JanRain's library, but I have problems with getting Simple Registration to work: I have not succeeded in getting any data that way. And there is no documentation on using Attribute Exchange. :(
So, I found and was trying Zend/OpenId, but had the same problem as you: no Yahoo!, Google and who knows what else support. Reading this, it seems I'll have to get back to JanRain; RPX is not an option in my case as it's a third party service.