Having had the script running for a while, some points for improvement emerged:
- multi-sim support (I got two prepaid cards, that might be cancelled if not being used every now and then and it might be clever, to receive the warning messages 😉 )
- unicode – there are some messages coming in, that kill the script for encoding problem (need to look into telepot exception handling)
- storage (why not keeping messages copies in the database?)
- longer messages – I ceceived one from t-mobile which again killed the script
so, for a starter lets have a look at Nr 1 and 2:
I have created a dual-model environment following this post: smstools forum
To ensure the umts-sticks will have the correct (fixed) device name I modified the udev-rules as described here: debian handbook on udev
short version: I created udev-rules to create links to the devices as modem1, modem2…
root@tefrod:/home/greaman# cat /etc/udev/rules.d/99-usb-serial.rules
SUBSYSTEM=="tty",ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1436", SYMLINK+="modem1"
SUBSYSTEM=="tty",ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1001", SYMLINK+="modem2"
and of course modified the script:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import time
import telepot
import re
import string
import random
import os
class smsbot(telepot.Bot):
def __init__ (self, uid, token, spooldir):
super(smsbot, self).__init__(token)
self._mode = 0
self._recipient = ""
self._active = 1
self._user = uid
self._spooldir = spooldir
self.message_loop(self.handle)
self._queues = {1:"GSM1",2:"GSM2"}
self._modem = 1
def handle (self, msg):
chat_id = msg['chat']['id']
command = msg['text']
if chat_id != self._user:
self.sendMessage( chat_id, "unauthorized user")
return 0
res = re.match(r'^\\(\w+)\s?([\w\d]*)$', command, flags=0)
if res:
if res.group(1) == "status":
self.status()
elif res.group(1) == "setrcpt":
self._recipient = res.group(2)
self.sendMessage( chat_id, "recipient set to: %s" % self._recipient)
elif res.group(1) == "open":
if self._recipient != "":
self._mode = 1
self.sendMessage( chat_id, "relay active")
else:
self.sendMessage( chat_id, "set recipient first!")
elif res.group(1) == "close":
self.sendMessage( chat_id, "relay deactived")
self._mode = 0
elif res.group(1) == "mdmselect":
self._modem = int(res.group(2))
self.sendMessage( chat_id, "modem set")
elif res.group(1) == "terminate":
self._active = 0
else:
self.sendMessage( chat_id, "unrecognized command!")
else:
if self._mode == 1 and self._recipient != "":
self.sendsm ( command )
else:
self.sendMessage( chat_id, "relay not enabled")
def id_generator(self, size=8, chars=string.ascii_uppercase + string.digits):
return ''.join(random.choice(chars) for _ in range(size))
def status (self):
self.sendMessage( self._user , "recipient: %s, relay status: %d" % (self._recipient, self._active))
def sendsm (self, msg):
# add function to handle longer messages
output = "To: %s \n\n%s" % (self._recipient, msg)
outlst = []
if self._modem == 0:
for key in self._queues:
outlst.append(self._queues[key])
else:
outlst.append(self._queues[self._modem])
for rcpt in outlst:
filename = os.path.join (self._spooldir, rcpt, self.id_generator())
fh = open (filename, "w")
fh.write (output)
fh.close()
def recvsm (self ):
for x in os.listdir(self._spooldir+"incoming/"):
f = open(self._spooldir+"incoming/"+x, 'r',encoding='ISO-8859-15')
cont = []
for line in f:
cont.append(line)
self.sendMessage(self._user, cont[0]+"\n"+cont[3]+"\n"+cont[12])
f.close()
os.remove(self._spooldir+"incoming/"+x)
def checkerr ( self ):
for x in os.listdir(self._spooldir+"failed/"):
self.sendMessage(self._user, "FAILED:")
f = open(self._spooldir+"failed/"+x, 'r')
ln=0
for line in f:
self.sendMessage(self._user, str(ln)+line)
ln=ln+1
f.close()
os.remove(self._spooldir+"failed/"+x)
def run (self ):
while self._active == 1:
self.recvsm ()
self.checkerr ()
time.sleep(5)
mybot = smsbot (000000, "#token here", "/var/spool/sms/")
mybot.run()
so the system will now receive short messages from two simcard (or more), send messages via those sims individually or simultaniously (just set modem to 0).
Having done that… I will look into the other topics… 😉
