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YSFReflector
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#!/usr/bin/python3
# pYSFReflector
#
# Created by Antonio Matraia (IU5JAE) on 20/02/2021.
# Copyright 2021 Antonio Matraia (IU5JAE). All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import socket
import threading
import queue
import sys
import os
import time
import re
import configparser
import signal
from datetime import datetime
import bisect
import struct
def ip2long(ip):
packed = socket.inet_aton(ip)
lng = struct.unpack("!L", packed)[0]
return lng
def long2ip(lng):
packed = struct.pack("!L", lng)
ip = socket.inet_ntoa(packed)
return ip
## LH list management ##
def inserisci_lista(lista, elemento, n_max):
if (len(lista) < n_max):
lista.append(elemento)
else:
for i in range(n_max - 1):
lista[i] = lista[i+1]
lista[n_max-1] = elemento
def inserisci_listaD(lista, elemento, n_max):
for i in lista:
if (i[1] == elemento[1]):
lista.remove(i)
break
if (len(lista) < n_max):
lista.append(elemento)
else:
for i in range(n_max - 1):
lista[i] = lista[i+1]
lista[n_max-1] = elemento
def stampa_lista(lista):
for i in range(len(lista)):
print(lista[len(lista)-i-1])
#################################
def inlist(a, x):
i = bisect.bisect_left(a, x)
if i != len(a) and a[i] == x:
return True
else:
return False
def check_string(l):
s = ''
for c in l:
if ((not c.isprintable()) and (ord(c) != 10)):
s += '<' +str(ord(c)) + '>'
if c.isprintable():
s += c
return s
def RecvData(sock,recvPackets):
while True:
data,addr = sock.recvfrom(1024) # block if I don't receive anything
recvPackets.put((data,addr))
def CalcID(ref):
c = ref.strip().ljust(16)
u = 0
for a in c:
u = (u + ord(a)) & 0xFFFFFFFF
u = (u + (u << 10) & 0xFFFFFFFF) & 0xFFFFFFFF
u = (u ^ (u >> 6)) & 0xFFFFFFFF
u = (u + (u << 3) & 0xFFFFFFFF) & 0xFFFFFFFF
u = (u ^ (u >> 11))& 0xFFFFFFFF
u = (u + (u << 15)& 0xFFFFFFFF)& 0xFFFFFFFF
u = u % 100000
return u
def getidgw(cl, adr):
i=[0, '']
for c in cl:
if ((c[0] == adr[0]) and (c[1] == adr[1])):
i = [c[4], c[2]]
break
return i
def ElencoNodi(cl):
while True:
time.sleep(120)
cl_lo = []
if (len(cl) == 0):
printlog(1, 'No repeaters/gateways linked')
else:
printlog(1, 'Currently linked repeaters/gateways:')
for c in cl:
printlog(1, ' ' + c[2].ljust(10) + ': ' + str(c[0]) + ':' + str(c[1]) + ' ' + str(c[3]) + '/60 : ' + datetime.utcfromtimestamp(c[6]).strftime("%Y-%m-%d %H:%M:%S"))
if (c[5] == 1):
cl_lo.append(c)
if (len(cl_lo) == 0):
printlog(1, 'No repeaters/gateways muted')
else:
printlog(1, 'Currently muted repeaters/gateways:')
for c in cl_lo:
printlog(1, ' ' + c[2].ljust(10) + ': ' + str(c[0]) + ':' + str(c[1]) + ' ' + str(c[3]) + '/60')
def TimeoutNodi(cl):
while True:
time.sleep(1)
for c in cl:
c[3] += 1
if (c[3] > 60):
printlog(1, 'Removing ' + c[2].ljust(10) + ' (' + c[0] + ':' + str(c[1]) + ') disappeared')
cl.remove(c)
def TimeoutTX(t, t_lock, r_lock, lista_lh, lista_lhd, t_out, t_react):
global BLK_TMP
global SCHED
global lock_tx
while True:
if (t[1] < 5):
lock_tx.acquire()
t[1] += 0.1
lock_tx.release()
if ((t[1] > 1.5) and (t[0] != 0)):
lock_tx.acquire()
t[0] = 0
printlog(1, 'Network watchdog has expired')
inserisci_lista(lista_lh, [check_string(t[2]), check_string(t[3]), check_string(t[4]), t[5], datetime.utcfromtimestamp(t[6]).strftime("%d-%m-%Y %H-%M-%S"), round(time.time() - t[6]) ], 20)
inserisci_listaD(lista_lhd, [check_string(t[2]), check_string(t[3]), check_string(t[4]), t[5], datetime.utcfromtimestamp(t[6]).strftime("%d-%m-%Y %H-%M-%S"), round(time.time() - t[6]) ], 20)
t[1] = 0
t[2] = ''
t[3] = ''
t[4] = ''
t[5] = 0
t[6] = 0
lock_tx.release()
pop_list = []
for d in t_lock:
if (t_lock[d] < 5):
t_lock[d] += 0.1
if ((t_lock[d] > 2.0) and (t_lock[d] != 0)):
pop_list.append(d)
r_lock.remove(d)
for x in pop_list:
t_lock.pop(x)
printlog(1, 'Removed from blockeds queue ' + str(x))
if (((time.time() - t[6]) > t_out) and (t[0] != 0)): # Tx timeout
if (not inlist(BLK_TMP, t[3])):
bisect.insort(BLK_TMP,t[3])
printlog(1, 'Timeout ' + t[3])
t[0] = 0 # drop transmission/force reauthorisation
t_sched = time.time() + t_react
SCHED.append([t[3], 'RC', t_sched]) # append scheduled remove from blocked list
printlog(1, 'Appended scheduled job: ' + t[3] + '/RC at time ' + time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime(t_sched)))
time.sleep(0.1)
def scheduler():
global BLK_TMP
global SCHED
while True:
time.sleep(1)
t = time.time()
for sc in SCHED:
if (t > sc[2]):
if (sc[1] == 'RC'):
BLK_TMP.remove(sc[0])
SCHED.remove(sc)
printlog(1, 'Removed from temporary blockeds queue ' + sc[0])
def ckeck_wild_ptt(cs, tw, cnt, trea):
global W_PTT
global BLK_TMP
n = 0
tc = time.time()
W_PTT.append([cs, tc])
for r in W_PTT:
if (r[1] < (tc - tw)):
W_PTT.remove(r)
else:
if (r[0] == cs):
n += 1
if (n >= cnt):
printlog(1, 'Wild-PTT ' + r[0])
if (not inlist(BLK_TMP, r[0])):
bisect.insort(BLK_TMP,r[0])
SCHED.append([r[0], 'RC', tc + trea])
printlog(1, 'Appended scheduled job: ' + r[0] + '/RC at time ' + time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime(tc + trea)))
def canTrasmit(cs, re_en):
global BLACK_LIST
global WHITE_LIST
global BLK_TMP
call_sp = re.split(r'[-/\' \']', cs)
call = call_sp[0]
## always block a stream from repeater ###
if (len(call_sp) > 1):
if (call_sp[1] == 'RPT'):
return False
if inlist(BLK_TMP, call):
return False
## case CheckRE == 1 ###
if (re_en == 1):
if inlist(WHITE_LIST, call):
return True
if inlist(BLACK_LIST, call):
return False
if (re.match(r'^\d?[A-Z]{1,2}\d{1,4}[A-Z]{1,3}$',call,re.IGNORECASE) and (len(call) <= 8)):
return True
else:
return False
## case CheckRE == 0 ###
if (re_en == 0):
if inlist(WHITE_LIST, call):
return True
if inlist(BLACK_LIST, call):
return False
return True
## case CheckRE == -1 ###
if (re_en == -1):
if inlist(BLACK_LIST, call):
return False
if inlist(WHITE_LIST, call):
return True
return False
def lista_gw(cl):
info = ''
for c in cl:
info += c[2] + ':' + c[0] + ':' + str(c[1]) + ':' + datetime.utcfromtimestamp(c[6]).strftime("%d-%m-%Y %H-%M-%S") + ';'
return info
def lista_invio(lista):
info = ''
for i in range(len(lista)):
info += lista[len(lista)-i-1][0] + ':' + lista[len(lista)-i-1][1] + ':' + lista[len(lista)-i-1][2] + ':' + str(lista[len(lista)-i-1][3]) + ':' + lista[len(lista)-i-1][4] + ':' + str(lista[len(lista)-i-1][5]) + ';'
return info
def update_clients(cl):
global GW_BL
global IP_BL
global GW_LK
global IP_LK
for c in cl:
if (inlist(GW_BL, c[2]) or inlist(IP_BL, ip2long(c[0])) or inlist(GW_LK, c[2]) or inlist(IP_LK, ip2long(c[0]))):
c[5] = 1
else:
c[5] = 0
if (inlist(GW_LK, c[2]) or inlist(IP_LK, ip2long(c[0]))):
c[7] = 1
else:
c[7] = 0
def blacklist(f_bl, t_reload, cli):
global BLACK_LIST
global WHITE_LIST
global GW_BL
global IP_BL
global GW_LK
global IP_LK
f_time_old = 0
try:
f_time = os.stat(f_bl).st_mtime
except:
pass
while True:
f_time = os.stat(f_bl).st_mtime
if (f_time != f_time_old):
try:
file = open(f_bl)
BL_TMP = []
GW_TMP = []
IP_TMP = []
WL_TMP = []
GW_LK_TMP = []
IP_LK_TMP = []
printlog(1, 'Reload the Blacklist from File')
for row in file:
content = row.strip()
# valid line (not a comment)
if ((len(content) > 3) and (content[0] != '#')):
c_split = content.split(':')
for i in range(len(c_split)):
c_split[i] = c_split[i].strip()
# CALL
if (len(c_split) == 1 or c_split[0] == 'CS'):
if (len(c_split) == 1):
cont = content
if (c_split[0] == 'CS'):
cont = c_split[1]
if ((len(cont) <= 8) and (len(cont) >= 3)):
if (not inlist(BL_TMP, cont)):
bisect.insort(BL_TMP,cont)
# WL
if (len(c_split) == 2 and c_split[0] == 'AL'):
if (not inlist(WL_TMP, c_split[1])):
bisect.insort(WL_TMP,c_split[1])
# GW
if (len(c_split) == 2 and c_split[0] == 'GW'):
if (not inlist(GW_TMP, c_split[1])):
bisect.insort(GW_TMP,c_split[1])
# GWB
if (len(c_split) == 2 and c_split[0] == 'GWB'):
if (not inlist(GW_LK_TMP, c_split[1])):
bisect.insort(GW_LK_TMP,c_split[1])
# IP
if (len(c_split) == 2 and c_split[0] == 'IP'):
try:
ipa = socket.gethostbyname(c_split[1])
ipl = ip2long(ipa)
except:
ipl = 0
printlog(2, 'Invalid hostname ' + c_split[1])
if (ipl > 0):
if (not inlist(IP_TMP, ipl)):
bisect.insort(IP_TMP, ipl)
# IPB
if (len(c_split) == 2 and c_split[0] == 'IPB'):
try:
ipa = socket.gethostbyname(c_split[1])
ipl = ip2long(ipa)
except:
ipl = 0
printlog(2, 'Invalid hostname ' + c_split[1])
if (ipl > 0):
if (not inlist(IP_LK_TMP, ipl)):
bisect.insort(IP_LK_TMP, ipl)
file.close()
except Exception as ex:
printlog(2, 'Failed to load Blacklist from File ' + str(ex) )
BLACK_LIST = BL_TMP.copy()
WHITE_LIST = WL_TMP.copy()
GW_BL = GW_TMP.copy()
IP_BL = IP_TMP.copy()
GW_LK = GW_LK_TMP.copy()
IP_LK = IP_LK_TMP.copy()
printlog(1, 'Loaded ' + str(len(BLACK_LIST)) + '/CS ' + str(len(WHITE_LIST)) + '/AL ' + str(len(GW_BL)) + '/GW ' + str(len(IP_BL)) + '/IP ' + str(len(GW_LK)) + '/GWB ' + str(len(IP_LK)) + '/IPB')
f_time_old = f_time
update_clients(cli)
else:
pass
time.sleep(t_reload)
## reading configuration file ##
def ReadConfig(f,p):
config = configparser.ConfigParser()
config_file = f.strip()
config.read(config_file)
name = config['Info']['Name']
description = config['Info']['Description']
try:
id = int(config['Info']['id'])
except:
id = 0
log_path = config['Log']['FilePath']
log_name = config['Log']['FileRoot']
try:
file_rotate = config['Log']['FileRotate']
except:
file_rotate = "1" # to keep file-rotation by default with timestamp
try:
display_level = int(config['Log']['DisplayLevel'])
except:
display_level = 1
try:
file_level = int(config['Log']['FileLevel'])
except:
file_level = 1
try:
en_ext_cmd = int(config['Log']['EnableExtendedCommands'])
except:
en_ext_cmd = 0 # extended commands disabled by default
try:
port = int(config['Network']['Port'])
except:
port = 42000
try:
file_blacklist = config['Block List']['File']
except:
file_blacklist = ''
try:
CheckRE = int(config['Block List']['CheckRE'])
if (CheckRE > 1):
CheckRE = 1
if (CheckRE < -1):
CheckRE = -1
except:
CheckRE = 1
try:
t_reload_blacklist = float(config['Block List']['Time'])
except:
t_reload_blacklist = 5.0
if (t_reload_blacklist < 0.1):
t_reload_blacklist = 0.1
try:
debug = int(config['Network']['Debug'])
if (debug >= 1):
debug = 1
if (debug < 1):
debug = 0
except:
debug = 0
try:
timeout = float(config['Protections']['Timeout'])
except:
timeout = 240.0
try:
treactivate = float(config['Protections']['Treactivate'])
except:
treactivate = 1800.0
try:
wildptttime = float(config['Protections']['WildPTTTime'])
except:
wildptttime = 5.0
try:
wildpttcount = int(config['Protections']['WildPTTCount'])
except:
wildpttcount = 3
p.append(id) # 0
p.append(name) # 1
p.append(description) # 2
p.append(log_path) # 3
p.append(log_name) # 4
p.append(port) # 5
p.append(file_blacklist) # 6
p.append(t_reload_blacklist) # 7
p.append(file_rotate) # 8
p.append(CheckRE) # 9
p.append(en_ext_cmd) #10
p.append(display_level) #11
p.append(file_level) #12
p.append(debug) #13
p.append(timeout) #14
p.append(treactivate) #15
p.append(wildptttime) #16
p.append(wildpttcount) #17
def sanitize_msg(data):
bya_msg = bytearray(data)
if ((data[0:4] == b"YSFP") and (len(data) == 14)):
for i in range(10):
if ((bya_msg[i+4] < 32) or (bya_msg[i+4] > 126)):
bya_msg[i+4] = 32
if ((data[0:4] == b"YSFD") and (len(data) == 155)):
for i in range(30):
if ((bya_msg[i+4] < 32) or (bya_msg[i+4] > 126)):
bya_msg[i+4] = 32
return(bytes(bya_msg))
def RunServer(config):
global filelog
global version
global BLACK_LIST
global GW_BL
global IP_BL
global GW_LK
global IP_LK
global BLK_TMP
global debug
global lock_tx
host = '0.0.0.0'
port = config[5]
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
s.setblocking(1)
s.bind((host,port))
clients = [] # addr, port, gw, t_corr, ID, lonly, t_conn, locked
c = []
rx_lock = []
rx_lock_tout = {}
# LH list
LH = []
LHD = []
# muted list
BL = []
BLD = []
id = 1 # id gw
id_str = 1 # id stream
tx = [0, 0, '', '', '', 0, 0] # id_gw, tout, gateway, src, dest, id_stream, start_time
refl_name = config[1]
refl_desc = config[2]
if ((config[0] > 0) and (config[0] < 1000000)):
refl_id = str(config[0]).zfill(5)
else:
refl_id = CalcID(refl_name)
f_blacklist = config[6]
tr_blacklist = config[7] * 60.0
CheckRE = config[9]
en_ext_cmd = config[10]
timeout = config[14]
treactivate = config[15]
wptttime = config[16]
wpttcount = config[17]
recvPackets = queue.Queue()
print('Starting pYSFReflector-' + version)
printlog(2, 'Starting pYSFReflector-' + version)
if (en_ext_cmd == 1):
printlog(2, 'Extended Commands Enabled')
else:
printlog(2, 'Extended Commands Disabled')
threading.Thread(target=RecvData,args=(s,recvPackets)).start()
threading.Thread(target=ElencoNodi,args=(clients,)).start()
threading.Thread(target=TimeoutNodi,args=(clients,)).start()
threading.Thread(target=TimeoutTX,args=(tx,rx_lock_tout,rx_lock,LH,LHD,timeout,treactivate)).start()
threading.Thread(target=scheduler,args=[]).start()
if (len(f_blacklist) > 0):
threading.Thread(target=blacklist,args=(f_blacklist,tr_blacklist,clients)).start()
time_start = time.time()
while True:
data_ns, addr = recvPackets.get() # blocked if queue is empty
data = sanitize_msg(data_ns)
cmd = data[0:4]
if debug == 1:
hex_dump(data)
if (cmd == b'YSFP'):
pres = False
for c in clients:
if ((c[0] == addr[0]) and (c[1] == addr[1])):
pres = True
c[3] = 0
break
if not pres:
lonly = 0
locked = 0
if inlist(GW_BL, (data[4:14]).decode().strip()):
lonly = 1
if inlist(IP_BL, ip2long(addr[0])):
lonly = 1
if inlist(GW_LK, (data[4:14]).decode().strip()):
locked = 1
lonly = 1
if inlist(IP_LK, ip2long(addr[0])):
locked = 1
lonly = 1
c=[addr[0], addr[1], (data[4:14]).decode().strip(), 0, id, lonly, time.time(), locked]
id += 1
clients.append(c)
printlog(1, 'Adding ' + c[2].ljust(10) + ' (' + c[0] + ':' + str(c[1]) + ')')
s.sendto(b'YSFPREFLECTOR ',addr)
if (cmd == b'YSFU'):
for c in clients:
if ((c[0] == addr[0]) and (c[1] == addr[1])):
printlog(1, 'Removing ' + c[2].ljust(10) + ' (' + c[0] + ':' + str(c[1]) + ') unlinked')
clients.remove(c)
break
if ((cmd == b'YSFD') and (len(data) == 155)):
[id_corr, gw_corr] = getidgw(clients, addr)
if (tx[0] == 0):
if (inlist(GW_BL, gw_corr) or inlist(GW_LK, gw_corr)):
tx_ok = False
block_r = 'GW'
else:
if (inlist(IP_BL, ip2long(addr[0])) or inlist(IP_LK, ip2long(addr[0]))):
tx_ok = False
block_r = 'IP'
else:
tx_ok = canTrasmit(data[14:24].decode().strip(), CheckRE)
block_r = 'CS'
if tx_ok:
if ((tx[0] == 0) and (id_corr != 0)): # new stream
lock_tx.acquire()
tx[0] = id_corr
tx[1] = 0
# gateway
tx[2] = data[4:14].decode().strip()
# src
tx[3] = data[14:24].decode().strip()
# dest
tx[4] = data[24:34].decode().strip()
# stream ID
tx[5] = id_str
# time start
tx[6] = time.time()
lock_tx.release()
id_str += 1
printlog(1, 'Received data from ' + tx[3].ljust(10) + ' to ' + tx[4].ljust(10) + ' at ' + tx[2].ljust(10))
ckeck_wild_ptt(tx[3], wptttime, wpttcount, treactivate)
else:
if (id_corr not in rx_lock):
rx_lock.append(id_corr)
inserisci_lista(BL, [check_string(data[4:14].decode().strip()) + '/' + block_r, check_string(data[14:24].decode().strip()), check_string(data[24:34].decode().strip()), -1, datetime.utcfromtimestamp(time.time()).strftime("%d-%m-%Y %H-%M-%S"), -1 ], 20)
inserisci_listaD(BLD, [check_string(data[4:14].decode().strip()) + '/' + block_r, check_string(data[14:24].decode().strip()), check_string(data[24:34].decode().strip()), -1, datetime.utcfromtimestamp(time.time()).strftime("%d-%m-%Y %H-%M-%S"), -1 ], 20)
printlog(1, 'Data from ' + data[14:24].decode().strip().ljust(10) + ' at ' + data[4:14].decode().strip().ljust(10) + ' blocked/' + block_r)
rx_lock_tout[id_corr] = 0
if ((id_corr == tx[0]) and (id_corr != 0)):
lock_tx.acquire()
tx[1] = 0
lock_tx.release()
for c in clients:
if (((c[0] != addr[0]) or (c[1] != addr[1])) and (id_corr == tx[0]) and (id_corr != 0) and (id_corr not in rx_lock) and (c[7] == 0)):
s.sendto(data,(c[0], c[1]))
if (((data[34] & 0x01) == 0x01) and (tx[0] == id_corr) and (tx[0] !=0)):
printlog(1, 'Received end of transmission')
inserisci_lista(LH, [check_string(tx[2]), check_string(tx[3]), check_string(tx[4]), tx[5], datetime.utcfromtimestamp(tx[6]).strftime("%d-%m-%Y %H-%M-%S"), round(time.time() - tx[6]) ], 20)
inserisci_listaD(LHD, [check_string(tx[2]), check_string(tx[3]), check_string(tx[4]), tx[5], datetime.utcfromtimestamp(tx[6]).strftime("%d-%m-%Y %H-%M-%S"), round(time.time() - tx[6]) ], 20)
lock_tx.acquire()
tx[0] = 0
tx[1] = 0
tx[2] = ''
tx[3] = ''
tx[4] = ''
tx[5] = 0
tx[6] = 0
lock_tx.release()
if (cmd == b'YSFS'):
printlog(0, 'YSF server status enquiry from ' + addr[0] + ':' + str(addr[1]))
if (len(clients) > 999):
num_cli = 999
else:
num_cli = len(clients)
info = 'YSFS' + str(refl_id).zfill(5) + refl_name.ljust(16) + refl_desc.ljust(14) + str(num_cli).zfill(3)
s.sendto(str.encode(info),addr)
if (cmd == b'YSFV'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'YSFV' + 'pYSFReflector' + ' ' + version
s.sendto(str.encode(info),addr)
if (cmd == b'YSFI'):
# Maybe we can do something usefull with this infos later?
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
printlog(0, 'Received information from: ' + addr[0] + ': Callsign: ' + str(data[4:14].decode().strip()) + ' RX-QRG: ' + str(data[14:23].decode().strip()) + ' TX-QRG: ' + str(data[23:32].decode().strip()) + ' Loc: ' + str(data[32:38].decode().strip()) + ' QTH: ' + str(data[38:58].decode().strip()) + ' Type: ' + str(data[58:70].decode().strip()) + ' GW-ID: ' + str(data[70:87].decode().strip()))
## Extended Commands ##
if (en_ext_cmd == 1):
if (cmd == b'QSRU'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'ASRU;' + str(round(time.time()-time_start)) + ';'
s.sendto(str.encode(info),addr)
if (cmd == b'QSRI'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'ASRI;' + str(refl_id) + ':' + refl_name + ':' + refl_desc + ':' + 'pYSFReflector' + ':' + version + ':' + str(CheckRE) + ':' + str(timeout) + ':' + str(treactivate) + ':' + str(wptttime) + ':' + str(wpttcount) + ';'
s.sendto(str.encode(info),addr)
if (cmd == b'QGWL'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'AGWL;' + lista_gw(clients)
s.sendto(str.encode(info),addr)
if (cmd == b'QLHL'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'ALHL;' + lista_invio(LH)
s.sendto(str.encode(info),addr)
if (cmd == b'QREJ'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'AREJ;' + lista_invio(BL)
s.sendto(str.encode(info),addr)
if (cmd == b'QLHD'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'ALHD;' + lista_invio(LHD)
s.sendto(str.encode(info),addr)
if (cmd == b'QRED'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
info = 'ARED;' + lista_invio(BLD)
s.sendto(str.encode(info),addr)
if (cmd == b'QACL'):
printlog(0, 'Received command ' + cmd.decode() + ' from: ' + addr[0] + ':' + str(addr[1]))
s_info = ''
info = 'AACL;CS/' + str(len(BLACK_LIST)) + '|' + 'AL/' + str(len(WHITE_LIST)) + '|' + 'GW/' + str(len(GW_BL)) + '|' + 'IP/' + str(len(IP_BL)) + ';'
i = 0
for c in BLACK_LIST:
s_info += 'CS:' + c + ';'
i += 1
if (i >= 20):
break
info += s_info
s_info = ''
i = 0
for c in WHITE_LIST:
s_info += 'AL:' + c + ';'
i += 1
if (i >= 20):
break
info += s_info
s_info = ''
i = 0
for c in GW_BL:
s_info += 'GW:' + c + ';'
i += 1
if (i >= 20):
break
info += s_info
s_info = ''
i = 0
for c in IP_BL:
s_info += 'IP:' + long2ip(c) + ';'
i += 1
if (i >= 20):
break
info += s_info
s.sendto(str.encode(info),addr)
s.close()
def printlog(log_level, mess):
global filelog
global log_basename
global file_rotate
global file_level
global debug
if file_rotate == "1":
log_file = log_basename + '-' + str(datetime.utcnow().strftime('%Y-%m-%d')) + '.log'
else:
log_file = log_basename + '.log'
try:
if not os.path.isfile(log_file):
filelog.flush()
filelog.close()
filelog = open(log_file,'x')
except:
pass
if isinstance(log_level, int):
if file_level <= log_level:
str_log = check_string('M: ' + str(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f'))[:-3] + ' ' + mess)
else:
if log_level == "d" and debug == 1:
str_log = check_string('D: ' + str(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f'))[:-3] + ' ' + mess)
try:
filelog.write(str_log + '\n')
filelog.flush()
except:
pass
def hex_dump(data):
try:
n = 0
b = data[0:16]
while b:
s1 = " ".join([f"{i:02x}" for i in b]) # hex string
s1 = s1[0:23] + " " + s1[23:] # insert extra space between groups of 8 hex values
s2 = "".join([chr(i) if 32 <= i <= 127 else "." for i in b]) # ascii string; chained comparison
message = f"{n * 16:08x} {s1:<48} |{s2}|"
printlog("d", message)
n += 1
b = data[n*16:(n+1)*16]
except Exception as e:
print(__file__, ": ", type(e).__name__, " - ", e, sep="", file=sys.stderr)
######## main ########
version = '20220203'
if (len(sys.argv) != 2):
print('Invalid Number of Arguments')
print('use: YSFReflector <configuration file>')
sys.exit()
if (sys.argv[1].strip() == '-v'):
print('pYSFReflector version ' + version)
sys.exit()
## reading configuration ##
config=[]
try:
ReadConfig(sys.argv[1].strip(), config)
except:
print('Unable to read configuration file')
sys.exit()
log_basename = config[3] + '/' + config[4]
file_rotate = config[8]
display_level = config[11]
file_level = config[12]
debug = config[13]
### log
if file_rotate == "1":
log_file = log_basename + '-' + str(datetime.utcnow().strftime('%Y-%m-%d')) + '.log'
else:
log_file = log_basename + '.log'
try:
if os.path.isfile(log_file):
filelog = open(log_file,'a')
else:
filelog = open(log_file,'x')
except:
print('Unable to Open Log File')
sys.exit()
BLACK_LIST = []
WHITE_LIST = []
GW_BL = []
IP_BL = []
GW_LK = []
IP_LK = []
BLK_TMP = []
SCHED = []
W_PTT = []
lock_tx = threading.Lock()
RunServer(config)