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#!/usr/bin/python3
def find_potential_super(path="/etc/tinc/retiolum/hosts"):
import os
import re
needle_addr = re.compile("Address\s*=\s*(.*)")
needle_port = re.compile("Port\s*=\s*(.*)")
for f in os.listdir(path):
try:
with open(path+"/"+f) as of:
addrs = []
port = "655"
for line in of.readlines():
addr_found = needle_addr.match(line)
if addr_found:
addrs.append(addr_found.group(1))
port_found = needle_port.match(line)
if port_found:
port = port_found.group(1)
if addrs : yield (f ,[(addr ,int(port)) for addr in addrs])
except FileNotFoundError as e:
print("Cannot open hosts directory to be used to find potential supernodes")
print("Directory used: {}".format(path))
raise
def try_connect(addr):
try:
from socket import socket,AF_INET,SOCK_STREAM
s = socket(AF_INET,SOCK_STREAM)
s.settimeout(2)
s.connect(addr)
s.settimeout(None)
s.close()
return addr
except Exception as e:
pass
def check_one_super(ha):
host,addrs = ha
valid_addrs = []
for addr in addrs:
ret = try_connect(addr)
if ret: valid_addrs.append(ret)
if valid_addrs: return (host,valid_addrs)
def check_all_the_super(path):
from multiprocessing import Pool
p = Pool(20)
return filter(None,p.map(check_one_super,find_potential_super(path)))
def main():
import os
hostpath=os.environ.get("TINC_HOSTPATH", "/etc/tinc/retiolum/hosts")
for host,addrs in check_all_the_super(hostpath):
print("%s %s" %(host,str(addrs)))
if __name__ == "__main__":
main()
# vim: set expandtab:ts=:sw=2
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