#!/usr/bin/python
from __future__ import print_function
import datetime
import socket
import random, string
import daemon, getopt, sys
import daemon.pidlockfile

def myrandom(length):
   return ''.join(random.choice(string.lowercase) for i in range(length))

def server(port, bindTo):
    BUFFER_SIZE = 1024
 
    s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
    s.bind((bindTo, port))
    s.listen(1)
    print('DebugReport server listening on [{0}]:{1}'.format(bindTo, port))

    while 1:
        conn, addr = s.accept()
 
	report_id = myrandom(10)
	filename = 'reports/' + datetime.date.today().strftime('%Y-%m-%d_') + report_id + '.gz'

        f = open(filename, 'w')
        while 1:
            data = conn.recv(BUFFER_SIZE)
            if not data: break
            f.write(data) # python will convert \n to os.linesep
        f.flush()
        f.close() 

        # send reply to reportee
        conn.send(report_id)
        conn.close()

        print('new report "{0}" from [{2}]:{3} stored as "{1}"'.format(report_id, filename, addr[0], addr[1]))
    pass

if __name__ == '__main__':
	try: 
		opts, args = getopt.getopt(sys.argv[1:], "dp:b:", ["do-not-daemonize", "port", "bind-to"])
	except:
		print ('Unrecognized option')
		sys.exit(2)

	daemonize = True
	port = 1337
	bindTo = '::'

	for opt, arg in opts:
		if opt in ("-d", "--do-not-daemonize"):
			daemonize = False
		elif opt in ("-p", "--port"):
			port = int(arg)
		elif opt in ("-b", "--bind-to"):
			try: 
				socket.inet_aton(arg)
				bindTo = str(arg)
			except:
				print('Invalid IPAdress. Using default ::')
		else:
			assert False
	
	if daemonize == False:
		server(port, bindTo)
	else:
		daemonContext = daemon.DaemonContext(pidfile = daemon.pidlockfile.PIDLockFile("/var/run/ffpb-debugserver.pid"))
		with daemonContext:
			server(port, bindTo)