First :D

plugins/mcping.py

@@ -0,0 +1,37 @@
+
+import socket
+import struct
+
+
+from util import hook
+
+def get_info(host, port):
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    try:
+        sock.connect((host, port))
+        sock.send('\xfe')
+        response = sock.recv(1)
+        if response != '\xff':
+            return "Server gave invalid response: "+repr(response)
+        length = struct.unpack('!h', sock.recv(2))[0]
+        values = sock.recv(length*2).decode('utf-16be').split(u'\xa7')
+        sock.close()
+        return "%s - %d/%d players" % (values[0], int(values[1]), int(values[2]))
+    except:
+        return "Error pinging "+host+":"+str(port)+", is it up? double-check your address!" 
+
+@hook.command
+def mcping(inp):
+    ".mcping server[:port] - ping a minecraft server and show response."
+    inp = inp.strip().split(" ")[0]
+
+    if ":" in inp:
+        host, port = inp.split(":", 1)
+        try:
+            port = int(port)
+        except:
+            return "Invalid port!"
+    else:
+        host = inp
+        port = 25565
+    return get_info(host, port)