Re: Instant Messaging Protocol

Your proposed protocol reminds me very much of SMTP.

Therefore, as Net::SMTP (and a few others) is built on top of Net::Cmd, I think you might want to take a look at that.

Comment on Re: Instant Messaging Protocol

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Re: Re: Instant Messaging Protocol by Eyck (Priest) on Jan 06, 2004 at 13:29 UTC
Well, SMTP is quite well designed, how do you propose one would do encryption with Net::Cmd? It's not an easy task, I already tried it with Net::FTP, and failed. Also, Net::CMD follows rather synchronous operation ( you send a command, and then hang until your receive status report for that ), and you can't receive any message unless you check the server. `use Net::CMD; .... $n->command("MSG service12@host.tld"); $x=$n->response();` [download] What happens when I receive a message from someone before server sends 'OK' response to me? And that's exactly the main point - most 'classic', well-designed protocol work like that, they don't expect the server to send some message out of the blue (irc being the only exception I know). Can you see the problem here?	[reply] [d/l]

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Re: Re: Instant Messaging Protocol
by Eyck (Priest) on Jan 06, 2004 at 13:29 UTC

Well, SMTP is quite well designed,

how do you propose one would do encryption with Net::Cmd?

It's not an easy task, I already tried it with Net::FTP, and failed.

Also, Net::CMD follows rather synchronous operation ( you send a command, and then hang until your receive status report for that ), and you can't receive any message unless you check the server.

use Net::CMD;
....
$n->command("MSG service12@host.tld");
$x=$n->response();
[download]

And that's exactly the main point - most 'classic', well-designed protocol work like that, they don't expect the server to send some message out of the blue (irc being the only exception I know).

Can you see the problem here?

[reply]
[d/l]