Esenthel Forum - Network

[solved]IRC connection via TCP

Fri, 03 Mar 2023 20:28:08 +0000

Hi,
This is for my own personal upcoming game
I am trying to make a connection via Socket so i can listen to IRC chat (for a Twitch integration).

My problem is that the socket TCP connection is stuck in IN_PROGRESS stage.
IRC requires login information to connect properly, and i am not sure if i am doing things in the correct order, i tried different way but to no success.

The intend here is to be able to connect to a chat room on twitch IRC, the next step will be to listen and parse all msgs, then use them as a voting tool for my game

sending returns -1

here is my integration:

Code:

class Twitch_Handler

{

   Socket TwitchSocket;

   Socket.RESULT result;

   SockAddr TwitchSAddr;

   Str username = "justinfan4445";

   Str password = "randompass";

   Str channelName = "jungroan"; //Set to the channel you want ot get chat messages from

   FileText data;

   void Create()

   {

      TwitchSAddr.setHost("irc.chat.twitch.tv", 6667);

      TwitchSocket.createTcp(TwitchSAddr);

      TwitchSocket.block(false);    

      result = TwitchSocket.connect(TwitchSAddr);  

      data.writeMem();

      data.putText(S+"PASS " + password+"\r \n");

      data.putText(S+"NICK " + username+"\r \n");

      data.putText(S+"USER " + username + " 8 * :" + username+"\r \n");

      data.putText(S+"JOIN #" + channelName+"\r \n");

      int size = TwitchSocket.send(&data, data.size());

      Gui.msgBox(S, S+"sent"+size+data.size());

   }

   void Update()

   {

      Byte data[1024];

      int received = TwitchSocket.receive(data, 1024);

      //Gui.msgBox(S, S+"recv"+received);

      //Gui.msgBox(S, S+"update..."+result);

      bool failed = TwitchSocket.connectFailed();

      if(!TwitchSocket.is() || result==Socket.FAILED || failed)Create();

   }

   void DrawDebug()

   {

   }

}

Twitch_Handler Twitch;

[solved] sending file over p2p steam

Tue, 19 Feb 2019 01:55:23 +0000

Hey,

EDIT : i was struggling to make p2p with files using byte packet, here is the SOLVED and working version of the code

i am using the Steamwork SDK for this, using 2 func, ( sendp2p/readp2p)

Code:

void SendP2PPacket(ulong TargetCSID, EP2PSend UDPTCPBUFF, File &f, int Channel=0)

{   

   f.pos(0); 

   byte *data;

   void* buffer = Alloc(data, f.size());

   f.get(buffer, f.size());

   if(!SteamNetworking().SendP2PPacket( CSteamID(TargetCSID), buffer, f.size(), UDPTCPBUFF, Channel ))

   {

      Gui.msgBox(S, S+"Error Sending Packet via P2P");

   }

   Free( buffer );

}

So far nothing too hard, i pack my File with what i want to send, i pass it along to this function, pos is set back to (0) and send some byte buffer that get created with it. the rest of the args doesnt really matter, its just the target and the method used.

then on my loop(receiver) i am catching the packets using steam func like this

Code:

void UpdateP2PPacket()

{

   uint32 msgSize=0;

   int nChannel = 0;

   while(SteamNetworking().IsP2PPacketAvailable(&msgSize, nChannel))

   {

      byte *data;

      void* packet = Alloc(data, msgSize);

      CSteamID steamIDRemote; 

      uint32 bytesRead = 0;

      if(SteamNetworking().ReadP2PPacket(data, msgSize, &bytesRead, &steamIDRemote))

      {

         File f_packet;

         f_packet.writeMem().putN(data, msgSize);

         f_packet.pos(0);

         byte t=0;

         int test=0;

         t=f_packet.getByte();

         f_packet.decIntV(test);

         Gui.msgBox(S, S+"WORKS"+t+"/"+test);   

      } 

      Free( packet );

   }

}

there again, nothing crazy. we check if a packet is available, if it is then we get the size in byte.
then we malloc for the byte ( depending of msgsize ).

then we call the func to get this packet, and store it in our mem. then read write it as file, then read the file itself

thanks for the helps

[solved]Steam callbacks, issue with macro

Thu, 13 Dec 2018 19:25:10 +0000

Hey,

i seem to have an issue with the STEAM_CALLBACK macro provided by the steamwork SDK
here is the code:

Code:

class GroupGUI : GuiObjs

{

   STEAM_CALLBACK(GroupGUI, OnPersonaStateChange, PersonaStateChange_t);

void OnPersonaStateChange(PersonaStateChange_t *pCallback)

   {

   }

void Create(){ //do creation there and stuff

}

}

GroupGUI GUI_Group;

When the .h is generated thru EE code editor VS sees it as ";TEAM_CALLBACK" instead of "STEAM_CALLBACK" and throw an error.
https://gyazo.com/c3cecdef25515d8c51f9ec3ad9b5cab5

Using VS only i can get it working ,but i want to stick to EE editor. ( casual scripting ;D )

What is the proper way to code this ? or any way around this that someone knows ?
and is there a way to avoid function to create header file automatically ?

here is the code from Steam:

Code:

// Declares a callback member function plus a helper member variable which

// registers the callback on object creation and unregisters on destruction.

// The optional fourth 'var' param exists only for backwards-compatibility

// and can be ignored.

#define STEAM_CALLBACK( thisclass, func, .../*callback_type, [deprecated] var*/ ) \

    _STEAM_CALLBACK_SELECT( ( __VA_ARGS__, 4, 3 ), ( /**/, thisclass, func, __VA_ARGS__ ) )

//-----------------------------------------------------------------------------

// The following macros are implementation details, not intended for public use

//-----------------------------------------------------------------------------

#define _STEAM_CALLBACK_AUTO_HOOK( thisclass, func, param )

#define _STEAM_CALLBACK_HELPER( _1, _2, SELECTED, ... )        _STEAM_CALLBACK_##SELECTED

#define _STEAM_CALLBACK_SELECT( X, Y )                        _STEAM_CALLBACK_HELPER X Y

#define _STEAM_CALLBACK_3( extra_code, thisclass, func, param ) \

    struct CCallbackInternal_ ## func : private CCallbackImpl< sizeof( param ) > { \

        CCallbackInternal_ ## func () { extra_code SteamAPI_RegisterCallback( this, param::k_iCallback ); } \

        CCallbackInternal_ ## func ( const CCallbackInternal_ ## func & ) { extra_code SteamAPI_RegisterCallback( this, param::k_iCallback ); } \

        CCallbackInternal_ ## func & operator=( const CCallbackInternal_ ## func & ) { return *this; } \

        private: virtual void Run( void *pvParam ) { _STEAM_CALLBACK_AUTO_HOOK( thisclass, func, param ) \

            thisclass *pOuter = reinterpret_cast( reinterpret_cast(this) - offsetof( thisclass, m_steamcallback_ ## func ) ); \

            pOuter->func( reinterpret_cast( pvParam ) ); \

        } \

    } m_steamcallback_ ## func ; void func( param *pParam )

#define _STEAM_CALLBACK_4( _, thisclass, func, param, var ) \

CCallback< thisclass, param > var; void func( param *pParam )

Thanks

Download class

Sat, 22 Sep 2018 02:07:40 +0000

Hi,

I'm trying to use Download class for my custom REST server, but all I get is DWNL_ERROR state. I believe that's because Download does not want to work with "http://localhost" address and it is forced to use 80 port on HTTP and 443 on HTTPS.

It resolves addresses by using GetHostAddresses() function, if I specify public IP address (like google address 172.217.8.14) it works correctly, but it fails when using "127.0.0.1" or "localhost".

So what can I do if I want to test Download on localhost and with the use of different port (like 8000)?

P.S. I tried to edit "C:\Windows\System32\drivers\etc\hosts" file (Win10), but nothing changed

web Connection crashes.

Thu, 09 Nov 2017 08:16:07 +0000

Connection class isn't usable in web because it internally calls block() which crashes with error "bad ioctl syscall 21537 "
(it somewhat known issue with emscripten but isn't fixed in because websockets anyways are async)
my suggested fix:

PHP Code:

//(Connection.cpp:720):
Bool Socket::block(Bool on)
{
#if WEB
    return !on;
#else
... original code
#endif
} 

SQL and UID

Sun, 23 Apr 2017 15:01:52 +0000

Hi, i faced a problem:
I have UID in my postgresql DB table, it looks like:

Code:

2b179f70-3c29-11e4-abda-6fbacb471cca

But when i select it to EE application i get the following:

Code:

709f172b-293c-e411-abda-6fbacb471cca

As you see first 8 bytes are swaped, rest 8 bytes are OK, it appears not only in select but in insert also.

When i want to insert it i do:

Code:

id.fromHex("2b179f703c2911e4abda6fbacb471cca");

Tried in 32 and 64bit, Debug and Release.

If i try to select vice versa, it works vice versa.

One more example:

Quote:in db: 12345678-9012-3456-7890-123456789012
in ee: 78563412-1290-5634-7890-123456789012

But if i pass UID as text from EE and to EE, it works fine, but it's bad, because it's way too slower.

UPD:
If i bind UID like this to be inserted into database, it inserts fine:

Code:

sql.commandParam(0, CPtr(&id), 16); // Inserts fine

sql.commandParam(0, id); // inserts swaped

But in any way after select back to EE it swaps no matter how it was inserted

Multicast

Sun, 18 Sep 2016 12:03:03 +0000

Hey

Is it possible to use FastConnection or Socket to receive messages from a multicast address, like 239.255.42.99?

Thanks,

yvan

Download Html

Tue, 10 May 2016 09:33:20 +0000

Hello,

I'm working for download the news for a launcher, but i have a problem.

I receive my News in my launcher with download but, i can receive this caracter: "é, à,è".

this is my code :

Code:

if( downloadNews.state() == DWNL_DONE)

   {

       //FileText f2(download.data(),  download.size());

       FileText f2;

       f2.readMem(downloadNews.data(),  downloadNews.totalSize());

       messages = f2.getAll();

       Gui.msgBox(S, messages);     

      downloadNews.del();

      test.code(messages);

           return true;

   }

the web serveur, i can read:

Quote:é

News test

Nous sommes désolé mais nous travaillons actuellement sur la mise en place des news.

Il y a des é à è !

news 2

but in the game i receive:

i don't understand why.

And i have a problem for place the text of top, when the texte size change.

thank you for your help

I'm think i need UTF-8

Receive Http information

Tue, 22 Mar 2016 15:49:32 +0000

Hello,

I'm trying to receive information for a web Server but, i can connect on the server, but i can't receive information. I'm starting with socket, can you help me? Thank you so mutch.

i'm try this:

Code:

newsSockAdd.setHost("google.be", 80);

   newsSock.createTcp(newsSockAdd);

   newsSock.bind(newsSockAdd);

   newsSock.block(false);

   Byte data[1024];

   int test = newsSock.receive(&data, 1024);

But i receive nothing.
thank you for your help

Host without port forwarding

Wed, 17 Feb 2016 13:56:34 +0000

Is it possible to host a server with the port closed but can be joined by other client?

BTW, I'm not sure how it called, UPnP? NAPT?

send mail from windows server

Wed, 06 Jan 2016 19:11:49 +0000

I thought i'd share this little piece of code. On linux you can use sendmail to send an email, but this is not available on a windows server. But you can send an email like this:

PHP Code:

if(SendMailSupported())
{
   SendMail(fromName, fromMail, client.recoveryID, mail, subject, message);
} else
{
   log(S + "no sendmail support. Saving message for " + client.recoveryID);

   Str filename = FFirst("C:/inetpub/mailroot/Pickup/recover", "txt");
   Str fileOnly = SkipStartPath(filename, "C:/inetpub/mailroot/Pickup/");
         
   bool fileReady = false;
   {
      FileText f;
      if(f.write(fileOnly, ANSI)) {
         f.putLine(S + "From: " + fromName + " <" + fromMail + ">");
         f.putLine(S + "To: " + client.recoveryID + " <" + mail + ">");
         f.putLine(S + "Subject: " + subject);
         f.putLine(S);
         f.putText(message);
         f.putLine(S);
         f.putLine(".");
         if(!f.flush())
         {
            log("Failed to send mail. Failed to flush file to disk.");             
         } else fileReady = true;
      } else
      {
         log("Failed to send mail. Failed to open file for writing.");
      }
   }
         
   if(fileReady && !FRename(fileOnly, filename))
   {
      log("Failed to send mail. Failed to move to pickup dir.");
      FDelFile(fileOnly);
   }
} 

This assumes you have an smtp server installed and the user running your application has write access to C:/inetpub/mailroot/Pickup/

A few notable points are:

- You can't write to the pickup directory in one go. The file will be picked up by the system before you've completed writing to it.
- For some reason my files did not get sent in UTF8 or UTF16.
- Mind the emtpy line and a dot on a separate line after the actual message.
- The file must be closed before moving (renaming). In this example i've made sure this is the case by using extra braces.

Amount of network connections [Solved]

Mon, 14 Sep 2015 18:48:10 +0000

Hello!

I have the strange situation after moving to Windows 10. When i run EE editor, my Game Server and Client, Client says to me that i can't connect to my Server. I tried to connect to my PostgreSQL server and it said the following:

  image_2015-09-14_21-21-38.png (Size: 7.03 KB / Downloads: 122)

I triet to search the internet, but it said the following:

  image_2015-09-14_21-22-39.png (Size: 49.1 KB / Downloads: 122)

There was no such behavior on Windows 7. I started investigating the problem, i closed my Server, Client and EE Editor and my connection returned!
So i downloaded TCPView and that's what i saw there:

  ee_network.png (Size: 26.36 KB / Downloads: 122)

But when closing all EE apps, it told me the following:

  no_ee_network.png (Size: 40.55 KB / Downloads: 122)

264 Endpoints (!!!) vs just 30. And with EE they continued growing.

It seems like Windows (10 or all versions) have a limitation of 500 Endpoints (as they are called in TCPView, left bottom corner) and when I start EE Editor or my Game Server, which has only one [b]ConnectionServer[b] class, it starts to spam with new connections and makes whole computer network stop.

Do you know why is that?

MSSQL and UID

Sat, 20 Jun 2015 10:44:39 +0000

What would be the propper way of saving and loading out of mssql for UID values?
Atm im using a "bigint" to store the UID value into in mssql but it does not seem to work all that well as when i get it back out the object where the UID came from is unfindable.

Network problems while server is running

Fri, 15 May 2015 03:05:04 +0000

I've just noticed that the collaborative development server application kills network connections from my machine as well as others on the network?.. me and my wife been having a lot of internet issues the past few days. Just earlier i found out the culprit which has been the server i have been running on my pc. i could barely connect to any websites with the server running and as soon as i shut it down any problems disappear.. started the server back up.. bang problems started straight away again. On any browser (Chrome IE and Firefox) it will give a connection error on almost all websites.

How transfer pathWorld server to client ?

Fri, 08 May 2015 23:23:11 +0000

hey so im coming to you, simply to ask, how would you pass a pathWorld from a client to a server to archieved a link between my ai client side and server side on their movement.

i'd like to handle the fact that when a item got set in the client/server side, the other one understand it without communication and have a sync every couple minutes to make sure they are similar (for exemple)

this would be to avoid killing the bandwidth on large regions, but maybe someone has a better idea ?

when i create my pathworld into my world, my region seems to not have any knowledge of it and the data disapear, someone knows why ?

ps: i am using inesis base with modified coding

Thanks

getting bytes from sqLite

Mon, 09 Feb 2015 21:52:43 +0000

Hi,

it's not a big issue, but I don't think this behaviour is intended:

Suppose you have a table with a column which accepts a byte:

PHP Code:

columns.New().set("value", SDT_BYTE) 

I would suppose this would be the way to retrieve it:

PHP Code:

byte value;
sql.getCol(3, value); 

But this triggers an error: Memp.setNum does not support PTR mode.

A column can contain a byte, but it cannot be loaded as one. That's not very logical, right?

It doesn't matter that much, but once in a while I forget why I get this error and spend half an hour examining my table and query

Regards,

yvan

[my fault] Pak + sqlite

Sun, 28 Dec 2014 11:36:46 +0000

Hello!

I faced a problem, is there a way to read sqlite database if it is inside a Pak?
FExist() finds a file in Pak, but sqlite creates empty DB with the same name near my EXE.

In headers description connectSQLite() performs project data connection

Code:

// file exists only in project data, try to connect in read-only mode using callbacks

UPD1:

According to your SQLite VFS implementation, it should work...

Connection.updateState()

Tue, 23 Dec 2014 19:53:33 +0000

Hello!

I faced an issue, i take the following code (it's too small to export it as a project):

Code:

Connection conn;

Thread t;

void InitPre() 

{

   EE_INIT();

}

bool Init() // initialize after engine is ready

{

   t.create(connect, 0, 10000);

   return true;

}

void Shut()

{

   t.del();

}

bool Update()

{

   if(conn.receive(0))

   {

      switch(conn.data.getInt())

      {

       case 0: break;

       case 1: break;

      }

   }

   if(Kb.bp(KB_ESC))return false;

   return true;

}

void Draw()

{

   D.clear(TURQ);

   D.text (0, 0, "Hello to Esenthel Engine !");

}

Bool connect(Thread &thread_caller)

{

    if(conn.state() != CONNECT_GREETED)

    {

       SockAddr server;

       server.ip  ("127.0.0.1");

       server.port(7777);

       conn.clientConnectToServer(server);

       conn.updateState(5000);

    }

    return true;

}

I do Connection.updateState() in thread because i don't want my window to hang during connection. From time to time (sometimes at application launch time, sometimes after 40 seconds, sometimes more) application crashes - unable to allocate some memory. I think it's because main thread and secondary thread call conn.receive(0) and conn.updateState(5000) simultaneously.

Is it right to use it like that or not?

How to avoid crashes if i need to wait for connection to be greeted in thread?

Please help

SQL::getRowsCols

Thu, 16 Oct 2014 15:28:12 +0000

Another small suggestion :-)

In the SQL::getRowsCols function, esenthel always requires a where clause. This is not always needed because you might want to retrieve all values in a particular column. For example something like this:

PHP Code:

SQL.getRowsCols("accounts", S, Memc<Str>().New() = "accountName"); 

.. wont work because there's an empty condition. I can solve this by using tricks like:

PHP Code:

SQL.getRowsCols("accounts", S + "ID > -1", Memc<Str>().New() = "accountName"); 

or perhaps:

PHP Code:

SQL.getRowsCols("accounts", S + "accountName LIKE '_'", Memc<Str>().New() = "accountName"); 

but both are non optimal because they have to check every line and see if it fits the condition. (Or are there optimisations at DB level I'm not aware of?)

I think there would be a speed benefit if you drop the entire where clause when the condition is an empty string.

Regards,

yvan

Questions concerning what you can do with Esenthel on the Server.

Sun, 21 Sep 2014 02:39:41 +0000

Got a few questions concerning the limits of Esenthel on a Dedicated Server with no Graphics Card.

1) First would you be able to load a World that you had created in the Editor on a Server and use it for Server side Physics/Collision Detection, Path Finding, AI, ect.? Or would you need to have a graphics card on the Server in order to be able to do that?

2) If you could Load a World on the Server would you then be able to send the Client the Data for the World so that the Server controls what the Players see so the world couldn't be hacked?

Thanks.