public SSClient( Uri gingaHttpLocation, OnActionReceivedMethod onActionReceived = null, Action onServerDisconnected = null){
DebugStream.outPut += "SSClient.SSClient: entrei.\n";
this.gingaUrl = new Uri(string.Format("http://{0}:{1}/",gingaHttpLocation.Host,gingaHttpLocation.Port));
this.httpViceVersa = new HttpBridge(this.OnHttpServerRequested);
this.OnServerDisconnected = onServerDisconnected;
this.OnActionReceived = onActionReceived;
DebugStream.outPut += "SSClient.SSClient: pre-inicialização.\n";
// Register request body
JObject body = new JObject(
new JProperty("location",string.Format("http://{0}:{1}/",Array.Find(Dns.GetHostEntry(Dns.GetHostName()).AddressList,i => i.AddressFamily == AddressFamily.InterNetwork),this.httpViceVersa.Port)),
new JProperty("deviceType","VR"),
new JProperty("supportedFormats",new JArray(
new JValue("x-application-ncl360"),
new JValue("x-application-x3d"),
new JValue("x-application-aframe")
)),
new JProperty("recognizableEvents",new JArray(
new JValue("selection"),
new JValue("lookAt"),
new JValue("lookAway")
))
);
DebugStream.outPut += "SSClient.SSClient: registrando\n";
// Step two: register its server as a client
var postResp = this.Post("dtv/remote-mediaplayer/",body,new Tuple<string,string>[]{
Tuple.Create("Content-Type","application/json; charset=utf-8"),
Tuple.Create("Accept","application/json; charset=utf-8")
});
// ################################
DebugStream.outPut += "A response da POST request a: " + postResp.RequestUri.ToString() + " HEADERS:\n\n";
foreach( var key in postResp.ResponseHeaders.AllKeys)
DebugStream.outPut += "Key: \"" + key + "\" Value: \"" + postResp.ResponseHeaders[key] + "\"\n";
DebugStream.outPut += "\nBODY:\n\"" + postResp.ResponseBody + "\"\n";
// ################################
if( postResp.BadParsed )
throw new Exception("The register response was bad parsed!");
if( !postResp.ResponseBody.ContainsKey("control") || postResp.ResponseBody.GetValue("control") == null )
throw new Exception("The register response has no well formed 'control' key!");
DebugStream.outPut += "SSClient.SSClient: passo 2\n";
// Step three: creates and configures the TCP socket connection
this.connection = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp){
Blocking = true
};
if( Array.Find(Dns.GetHostEntry(gingaHttpLocation.Host).AddressList,i => i.AddressFamily == AddressFamily.InterNetwork) == null )
throw new Exception("Ginga HTTP server hostnome could not be resolved to an IPv4!");
// Starts a timer coroutine once csharp doesn't have a TimeOut parameter
var timer = new Thread(() => { Thread.Sleep(60000); if( !this.connection.Connected ) this.connection.Close(); });
timer.IsBackground = true;
timer.Start();
try{
DebugStream.outPut += "SSClient.SSClient: finishing handshake\n";
this.connection.Connect(
Array.Find(Dns.GetHostEntry(gingaHttpLocation.Host).AddressList,i => i.AddressFamily == AddressFamily.InterNetwork),
int.Parse(postResp.ResponseBody.GetValue("control").ToString())
);
DebugStream.outPut += "SSClient.SSClient: handshake finished\n";
ThreadStart connectionControlerDaemon = () => {
try{
// The server shall never send a single byte, then it blocks until the connection is broken
while( this.connection.Receive(new byte[1],1,SocketFlags.None) != 0 );
}catch( SocketException){
DebugStream.outPut += "\n\nConnection closed!\n";
}
// Once disconnected...
if( this.OnServerDisconnected != null )
this.OnServerDisconnected();
};
// Once connected, the connection controler is launched
var control = new Thread(connectionControlerDaemon);
control.IsBackground = true;
control.Start();
}catch( SocketException){
DebugStream.outPut += "\n\nControl connection timed out!\n";
}
}
// ################################
// ############# HTTP #############
// ################################
#region HTTP
public IEnumerator OnHttpServerRequested( HttpListenerContext context){
// ################################
// Get and parse the input
HttpBridge.ParsedReceivedRequest parsedRequest = null;
// Get a parsed input (syncronous)
var task = Task.Factory.StartNew(() => parsedRequest = new HttpBridge.ParsedReceivedRequest(context.Request));
yield return new WaitUntil(() => task.IsCompleted);
task.Dispose();
// ################################################################
DebugStream.outPut += "\nA request de método: " + context.Request.HttpMethod + " e URL: " + context.Request.Url.OriginalString +
" vinda de: " + context.Request.RemoteEndPoint.Address.ToString() + ": HEADERS:\n\n";
foreach( var key in parsedRequest.Headers.AllKeys)
DebugStream.outPut += "key: \"" + key + "\" Value: \"" + parsedRequest.Headers[key] + "\"\n";
DebugStream.outPut += "\nBODY:\n\"" + parsedRequest.Body + "\"\n";
// ################################################################
// ################################
// Process the input
JObject responseMsg = null;
// It's a bad request
if( parsedRequest.BadParsed ){
responseMsg = new JObject(new JProperty("error","Request body is not UTF-8 encoded JSON (bad parse)."));
context.Response.StatusCode = (int) HttpStatusCode.BadRequest;
// It's an action message
}else if( context.Request.HttpMethod == HttpMethod.Post.ToString() && context.Request.Url.AbsolutePath.StartsWith(ACTION_PREFIX) &&
context.Request.ContentType == "application/json; charset=utf-8" && context.Request.AcceptTypes.Contains("application/json; charset=utf-8") ){
// Clean up
var relPath = context.Request.Url.AbsolutePath.Substring(ACTION_PREFIX.Length);
var body = parsedRequest.Body;
parsedRequest = null;
// Possible exception
Exception e = null;
// Call the request correct treatment
if( this.OnActionReceived != null )
yield return this.OnActionReceived(relPath,body,value => responseMsg = value,value => e = value);
if( e == null ){
if( responseMsg == null )
responseMsg = new JObject();
context.Response.StatusCode = (int) HttpStatusCode.OK;
}else{
responseMsg = new JObject(new JProperty("error","Action not accepted:\n\n" + e.ToString()));
context.Response.StatusCode = (int) HttpStatusCode.BadRequest;
}
}else{
responseMsg = new JObject(new JProperty("error","unrecognizable request."));
context.Response.StatusCode = (int) HttpStatusCode.BadRequest;
// #####################################################
DebugStream.outPut += "Recebi requisição inválida...\n";
}
// #####################################################
DebugStream.outPut += "enviando response\n";
// ################################
// Send the output
var respondAsync = Task.Factory.StartNew(() => {
try{
HttpBridge.SendRequestResponse(context.Response,responseMsg,Encoding.UTF8,new Tuple<string,string>[]{
Tuple.Create("Content-Type","application/json; charset=utf-8")
});
}catch( Exception e){
DebugStream.outPut += "Capturada exceção no envio da resposta:\n\n" + e.ToString() + "\n";
}
});
yield return new WaitUntil(() => respondAsync.IsCompleted);
respondAsync.Dispose();
// #####################################################
DebugStream.outPut += "response enviada\n";
}
