Differences

This shows you the differences between two versions of the page.

--- programming:irc [2021/06/03 07:24]
nanodano
+++ programming:irc [2022/03/13 16:49] (current)
nanodano
@@ Line 3: / Line 3: @@
 IRC stands for Internet Relay Chat.
-===== DevDungeon IRC Server =====
-Connect to the DevDungeon IRC server at ''irc.devdungeon.com'' on port ''6667''.
-<code>
-irc.devdungeon.com
-</code>
 ===== 2-minute Intro to IRC =====
@@ Line 56: / Line 49: @@
   * [[other:irssi_terminal_chat|irssi]] (Terminal) - For Windows, use Debian WSL. In Debian, install with ''apt install irssi''. In Mac, ''brew install irssi''. Use the normal IRC slash commands like ''/list'' and ''/join #general''. Use alt keys plus window number to switch between chat windows. E.g. ''ALT-1'' and ''ALT-2''.
   * netcat - You can use netcat as a client if you understand the IRC protocol. Check out my video tutorial [[https://youtu.be/FDrR98ww6bE|IRC with netcat]].
+===== Node.js Bot =====
+<code javascript simple_irc_bot.js>
+var net = require('net');  // https://nodejs.org/dist/latest/docs/api/net.html
+var BOT_NAME = 'mybot2';
+var BOT_CHANNEL = '#bots';
+var client = new net.Socket();
+client.connect(6667, 'irc.devdungeon.com', function() {
+  client.write('USER ' + BOT_NAME +  ' 0 * :' + BOT_NAME + '\n');
+  client.write('NICK ' + BOT_NAME + '\n'); // Must wait a second to register
+  setTimeout(function(){
+      client.write('JOIN ' + BOT_CHANNEL + '\n');
+      client.write('PRIVMSG ' + BOT_CHANNEL + ' Hello my Node.js bot is online!\n');
+   }, 3000);
+});
+client.on('data', function(data) {
+  console.log('MESSAGE_FROM_SERVER: ' + data);
+ var text = data.toString();
+ var splitText = text.split(' ');
+  // If data starts with PING, respond with PONG :whatever
+  if (text.startsWith('PING')) {
+    client.write('PONG ' + text.substring(5));  // Remove `PING ` and pong back what it sent me
+    console.log('Recieved PING. PONGED.');
+  } else if (splitText[1] == 'PRIVMSG') { // PM or chat room
+    // If data comes from a channel (#general):
+    //   :nanodano!johnd@107.181.165.217 PRIVMSG #general :Hello bot
+    // If data comes from privmsg (dano):
+    //   :nanodano!johnd@107.181.165.217 PRIVMSG danobot :hey
+    console.log('Destination:' + splitText[2])
+    // Was it a direct message or to the channel?
+    if (splitText[2] == BOT_CHANNEL) {
+       console.log('message was from ' + BOT_CHANNEL)
+    }
+    if (splitText[2] == BOT_NAME) {
+       console.log('message was directly to me (' + BOT_NAME + ')')
+    }
+    // Was the message a command?
+    if (splitText[3].substring(1).startsWith('!')) {
+      console.log('Command detected with ! prefix')
+      // Cut off first character, and check command. Run appropriate function. !bitcoin. !ping !8-ball
+      var command = splitText[3].substring(2).trim().toLowerCase();
+      console.log('Command: `' + command + '`');
+      if (command == 'ping') {
+        console.log('Ping command detected! Ponging.');
+        client.write('PRIVMSG ' + BOT_CHANNEL + ' Pong\n');
+      }
+    }
+    console.log('PrivMsg: ' + splitText[3].substring(1)); // Cut off : in front
+  } else {
+    console.log('Discarded unexpected/unimportant message.');
+  }
+});
+</code>

DevDungeon Wiki

User Tools

Site Tools

Differences

Page Tools