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#! /usr/bin/env python
#
# Example program using irc.client.
#
# Copyright (C) 1999-2002 Joel Rosdahl
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Joel Rosdahl <joel@rosdahl.net>
#
# servermap connects to an IRC server and finds out what other IRC
# servers there are in the net and prints a tree-like map of their
# interconnections.
#
# Example:
#
# % ./servermap irc.dal.net somenickname
# Connecting to server...
# Getting links...
#
# 26 servers (18 leaves and 8 hubs)
#
# splitrock.tx.us.dal.net
# `-vader.ny.us.dal.net
# |-twisted.ma.us.dal.net
# |-sodre.nj.us.dal.net
# |-glass.oh.us.dal.net
# |-distant.ny.us.dal.net
# | |-algo.se.eu.dal.net
# | | |-borg.se.eu.dal.net
# | | | `-ced.se.eu.dal.net
# | | |-viking.no.eu.dal.net
# | | |-inco.fr.eu.dal.net
# | | |-paranoia.se.eu.dal.net
# | | |-gaston.se.eu.dal.net
# | | | `-powertech.no.eu.dal.net
# | | `-algo-u.se.eu.dal.net
# | |-philly.pa.us.dal.net
# | |-liberty.nj.us.dal.net
# | `-jade.va.us.dal.net
# `-journey.ca.us.dal.net
# |-ion.va.us.dal.net
# |-dragons.ca.us.dal.net
# |-toronto.on.ca.dal.net
# | `-netropolis-r.uk.eu.dal.net
# | |-traced.de.eu.dal.net
# | `-lineone.uk.eu.dal.net
# `-omega.ca.us.dal.net
import irc.client
import sys
def on_connect(connection, event):
sys.stdout.write("\nGetting links...")
sys.stdout.flush()
connection.links()
def on_passwdmismatch(connection, event):
print("Password required.")
sys.exit(1)
def on_links(connection, event):
global links
links.append((event.arguments[0],
event.arguments[1],
event.arguments[2]))
def on_endoflinks(connection, event):
global links
print("\n")
m = {}
for (to_node, from_node, desc) in links:
if from_node != to_node:
m[from_node] = m.get(from_node, []) + [to_node]
if connection.get_server_name() in m:
if len(m[connection.get_server_name()]) == 1:
hubs = len(m) - 1
else:
hubs = len(m)
else:
hubs = 0
print("%d servers (%d leaves and %d hubs)\n" % (len(links), len(links)-hubs, hubs))
print_tree(0, [], connection.get_server_name(), m)
connection.quit("Using irc.client.py")
def on_disconnect(connection, event):
sys.exit(0)
def indent_string(level, active_levels, last):
if level == 0:
return ""
s = ""
for i in range(level-1):
if i in active_levels:
s = s + "| "
else:
s = s + " "
if last:
s = s + "`-"
else:
s = s + "|-"
return s
def print_tree(level, active_levels, root, map, last=0):
sys.stdout.write(indent_string(level, active_levels, last)
+ root + "\n")
if root in map:
list = map[root]
for r in list[:-1]:
print_tree(level+1, active_levels[:]+[level], r, map)
print_tree(level+1, active_levels[:], list[-1], map, 1)
def main():
global links
if len(sys.argv) != 3:
print("Usage: servermap <server[:port]> <nickname>")
sys.exit(1)
links = []
s = sys.argv[1].split(":", 1)
server = s[0]
if len(s) == 2:
try:
port = int(s[1])
except ValueError:
print("Error: Erroneous port.")
sys.exit(1)
else:
port = 6667
nickname = sys.argv[2]
client = irc.client.IRC()
sys.stdout.write("Connecting to server...")
sys.stdout.flush()
try:
c = client.server().connect(server, port, nickname)
except irc.client.ServerConnectionError as x:
print(x)
sys.exit(1)
c.add_global_handler("welcome", on_connect)
c.add_global_handler("passwdmismatch", on_passwdmismatch)
c.add_global_handler("links", on_links)
c.add_global_handler("endoflinks", on_endoflinks)
c.add_global_handler("disconnect", on_disconnect)
client.process_forever()
if __name__ == '__main__':
main()
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