177 lines
5.3 KiB
Python
177 lines
5.3 KiB
Python
from util import hook
|
|
import socket
|
|
import struct
|
|
import json
|
|
|
|
|
|
try:
|
|
import DNS
|
|
# Please remember to install the dependancy 'pydns'
|
|
pydns_installed = True
|
|
except ImportError:
|
|
pydns_installed = False
|
|
|
|
mccolors = [u"\x0300,\xa7f", u"\x0301,\xa70", u"\x0302,\xa71", u"\x0303,\xa72", u"\x0304,\xa7c", u"\x0305,\xa74",
|
|
u"\x0306,\xa75", u"\x0307,\xa76", u"\x0308,\xa7e", u"\x0309,\xa7a", u"\x0310,\xa73", u"\x0311,\xa7b",
|
|
u"\x0312,\xa71", u"\x0313,\xa7d", u"\x0314,\xa78", u"\x0315,\xa77", u"\x02,\xa7l", u"\x0310,\xa79",
|
|
u"\x09,\xa7o", u"\x13,\xa7m", u"\x0f,\xa7r", u"\x15,\xa7n"]
|
|
|
|
|
|
def mc_color_format(motd):
|
|
for colorcombo in mccolors:
|
|
colorarray = colorcombo.split(",")
|
|
motd = motd.replace(colorarray[1], colorarray[0])
|
|
motd = motd.replace(u"\xa7k", "")
|
|
return motd
|
|
|
|
|
|
def unpack_varint(s):
|
|
d = 0
|
|
i = 0
|
|
while True:
|
|
b = ord(s.recv(1))
|
|
d |= (b & 0x7F) << 7 * i
|
|
i += 1
|
|
if not b & 0x80:
|
|
return d
|
|
|
|
|
|
def pack_data(d):
|
|
return struct.pack('>b', len(d)) + d
|
|
|
|
|
|
def pack_port(i):
|
|
return struct.pack('>H', i)
|
|
|
|
|
|
def mcping_modern(host, port):
|
|
""" pings a server using the modern (1.7+) protocol and returns formatted output """
|
|
# connect to the server
|
|
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
s.connect((host, port))
|
|
|
|
# send handshake + status request
|
|
s.send(pack_data("\x00\x00" + pack_data(host.encode('utf8')) + pack_port(port) + "\x01"))
|
|
s.send(pack_data("\x00"))
|
|
|
|
# read response
|
|
unpack_varint(s) # Packet length
|
|
unpack_varint(s) # Packet ID
|
|
l = unpack_varint(s) # String length
|
|
print l
|
|
|
|
d = ""
|
|
while len(d) < l:
|
|
d += s.recv(1024)
|
|
|
|
# Close our socket
|
|
s.close()
|
|
|
|
# Load json and return
|
|
data = json.loads(d.decode('utf8'))
|
|
try:
|
|
version = data["version"]["name"]
|
|
desc = data["description"]
|
|
max = data["players"]["max"]
|
|
online = data["players"]["online"]
|
|
except Exception as e:
|
|
return "Invalid data: {}; error: {}".format(data, e)
|
|
return mc_color_format(u"{}\x0f - {}\x0f - {}/{} players *".format(desc, version, online, max)).replace("\n", u"\x0f - ")
|
|
|
|
|
|
def mcping_legacy(host, port):
|
|
""" pings a server using the legacy (1.6 and older) protocol and returns formatted output """
|
|
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
sock.connect((host, port))
|
|
sock.send('\xfe\x01')
|
|
response = sock.recv(1)
|
|
print response
|
|
if response[0] != '\xff':
|
|
return "Server gave invalid response: " + repr(response)
|
|
length = struct.unpack('!h', sock.recv(2))[0]
|
|
values = sock.recv(length * 2).decode('utf-16be')
|
|
data = values.split(u'\x00') # try to decode data using new format
|
|
if len(data) == 1:
|
|
# failed to decode data, server is using old format
|
|
data = values.split(u'\xa7')
|
|
message = u"{} - {}/{} players".format(mc_color_format(data[0]), data[1], data[2])
|
|
else:
|
|
# decoded data, server is using new format
|
|
message = u"{} \x0f- {} - {}/{} players".format(mc_color_format(data[3]), mc_color_format(data[2]), data[4], data[5])
|
|
sock.close()
|
|
return message
|
|
|
|
|
|
def get_srv_data(domain):
|
|
""" takes a domain and finds minecraft SRV records """
|
|
DNS.ParseResolvConf()
|
|
srv_req = DNS.Request(qtype='srv')
|
|
srv_result = srv_req.req('_minecraft._tcp.{}'.format(domain))
|
|
|
|
for getsrv in srv_result.answers:
|
|
if getsrv['typename'] == 'SRV':
|
|
data = [getsrv['data'][2], getsrv['data'][3]]
|
|
return data
|
|
|
|
|
|
def parse_input(inp):
|
|
""" takes the input from the mcping command and returns the host and port """
|
|
inp = inp.strip().split(" ")[0]
|
|
if ":" in inp:
|
|
host, port = inp.split(":", 1)
|
|
try:
|
|
port = int(port)
|
|
except:
|
|
raise Exception("The port '{}' is invalid.".format(port))
|
|
return host, port
|
|
if pydns_installed:
|
|
srv_data = get_srv_data(inp)
|
|
if srv_data:
|
|
return str(srv_data[1]), int(srv_data[0])
|
|
return inp, 25565
|
|
|
|
|
|
@hook.command
|
|
@hook.command("mcp6")
|
|
def mcping6(inp):
|
|
"""mcping6 <server>[:port] - Ping a Minecraft server version 1.6 or smaller to check status."""
|
|
try:
|
|
host, port = parse_input(inp)
|
|
except Exception as ex:
|
|
return ex.args[0]
|
|
try:
|
|
return mcping_legacy(host, port)
|
|
except:
|
|
return "The 1.6 server {}:{} looks offline from here.".format(host, port)
|
|
|
|
|
|
@hook.command
|
|
@hook.command("mcp7")
|
|
def mcping7(inp):
|
|
"""mcping <server>[:port] - Ping a Minecraft server version 1.7 or greater to check status."""
|
|
try:
|
|
host, port = parse_input(inp)
|
|
except Exception as ex:
|
|
return ex.args[0]
|
|
try:
|
|
return mcping_modern(host, port)
|
|
except:
|
|
return "The 1.7 server {}:{} looks offline from here.".format(host, port)
|
|
|
|
|
|
@hook.command
|
|
@hook.command("mcp")
|
|
def mcping(inp):
|
|
"""mcping <server>[:port] - Ping a Minecraft server to check status."""
|
|
try:
|
|
host, port = parse_input(inp)
|
|
except Exception as e:
|
|
return e.args[0]
|
|
try:
|
|
return mcping_modern(host, port)
|
|
except socket.error:
|
|
try:
|
|
return mcping_legacy(host, port)
|
|
except:
|
|
return "The server {} ({}:{}) looks offline from here.".format(inp, host, port)
|