#!/usr/bin/env python
"""
Connection to download server updates.software-univention.de gets stuck / stalls
"""
import os
from subprocess import Popen, PIPE

SERVER = 'download2.software-univention.de'


def _cmd(func, *cmd):
	print '# %s' % (' '.join(cmd),)
	proc = Popen(cmd, stdout=PIPE)
	for line in proc.stdout:
		line = line.rstrip()
		line = func(line)
		if line:
			print line


def cmd(*cmd):
	_cmd(lambda l: l, *cmd)
	print


def date():
	cmd('date', '--rfc-3339=date')


def ifstat():
	for iface in os.listdir('/sys/class/net'):
		cmd('ip', '-s', 'link', 'show', iface)


def netstat():
	f = lambda line: line if SERVER in line else None
	_cmd(f, 'netstat', '-tp')


def route():
	f = lambda line: cmd('ip', 'route', 'get', line) or line
	_cmd(f, 'dig', '+short', SERVER)


def lsof():
	pids = set()

	def f(line):
		if SERVER in line:
			command, pid, user, fd, typ, device, size_off, node, name = line.split(None, 8)
			pids.add(pid)
			return line

	_cmd(f, 'lsof')
	return pids


def proc(pids):
	if pids:
		cmd('ps', 'afwwwu', *list(pids))


def strace(pids):
	for pid in pids:
		cmd('timeout', '1s', 'strace', '-q', '-p', pid)


def ucr():
	f = lambda line: None if 'password' in line else line
	_cmd(f, 'ucr', 'search', '--brief', '--non-empty', '^repository/')


def bugzilla():
	try:
		import sys
		sys.path.insert(0, "/home/phahn/src")
		from bugzilla import BugzillaJson as Bugzilla
	except ImportError:
		return
	bug = Bugzilla()
	bug.get(36044)


def main():
	os.environ['LC_ALL'] = 'C'

	bugzilla()

	date()
	ifstat()
	netstat()
	route()
	pids = lsof()
	proc(pids)
	strace(pids)
	ucr()


if __name__ == '__main__':
	main()