def process_confirm(from_imsi, code):
"""Process a confirmation request.
Args:
from_imsi: sender's IMSI
code: the input confirmation code string
"""
# Step one: delete all the confirm codes older than some time.
db = sqlite3.connect(config_db['pending_transfer_db_path'])
db.execute("DELETE FROM pending_transfers"
" WHERE time - ? > 600", (time.time(),))
db.commit()
# Step two: check if this (from_imsi, code) combo is valid.
r = db.execute("SELECT from_acct, to_acct, amount FROM pending_transfers"
" WHERE code=? AND from_acct=?", (code, from_imsi))
res = r.fetchone()
if res and len(res) == 3:
from_imsi, to_imsi, amount = res
from_num = subscriber.get_numbers_from_imsi(from_imsi)[0]
to_num = subscriber.get_numbers_from_imsi(to_imsi)[0]
reason = "SMS transfer from %s to %s" % (from_num, to_num)
# Deduct credit from the sender.
from_imsi_old_credit = subscriber.get_account_balance(from_imsi)
from_imsi_new_credit = int(from_imsi_old_credit) - int(amount)
events.create_transfer_event(from_imsi, from_imsi_old_credit,
from_imsi_new_credit, reason,
from_number=from_num, to_number=to_num)
subscriber.subtract_credit(from_imsi, str(int(amount)))
# Add credit to the recipient.
to_imsi_old_credit = subscriber.get_account_balance(to_imsi)
to_imsi_new_credit = int(to_imsi_old_credit) + int(amount)
events.create_transfer_event(to_imsi, to_imsi_old_credit,
to_imsi_new_credit, reason,
from_number=from_num, to_number=to_num)
subscriber.add_credit(to_imsi, str(int(amount)))
# Humanize credit strings
amount_str = freeswitch_strings.humanize_credits(amount)
to_balance_str = freeswitch_strings.humanize_credits(
to_imsi_new_credit)
from_balance_str = freeswitch_strings.humanize_credits(
from_imsi_new_credit)
# Let the recipient know they got credit.
message = gt("You've received %(amount)s credits from %(from_num)s!"
" Your new balance is %(new_balance)s.") % {
'amount': amount_str, 'from_num': from_num,
'new_balance': to_balance_str}
sms.send(str(to_num), str(config_db['app_number']), str(message))
# Remove this particular the transfer as it's no longer pending.
db.execute("DELETE FROM pending_transfers WHERE code=?"
" AND from_acct=?", (code, from_imsi))
db.commit()
# Tell the sender that the operation succeeded.
return True, gt("You've transferred %(amount)s to %(to_num)s. "
"Your new balance is %(new_balance)s.") % {
'amount': amount_str, 'to_num': to_num,
'new_balance': from_balance_str}
return False, gt("That transfer confirmation code doesn't exist"
" or has expired.")
def chat(message, args):
args = args.split('|')
if len(args) < 3:
consoleLog('err', 'Missing Args\n')
exit(1)
to = args[0]
fromm = args[1]
text = args[2]
if ((not to or to == '') or (not fromm or fromm == '')):
consoleLog('err', 'Malformed Args\n')
exit(1)
consoleLog('info', 'Args: ' + str(args) + '\n')
sms.send(to, fromm, text)
def handle_incoming(from_imsi, request):
"""Called externally by an FS script.
Args:
from_imsi: sender's IMSI
request: a credit transfer or credit transfer confirmation request
"""
request = request.strip()
# This parses a to_number (length 1 or more) and an amount that can
# be formatted using a comma for a thousands seperator and a period for
# the decimal place
transfer_command = re.compile(
r'^(?P<to_number>[0-9]+)'
r'\*'
r'(?P<amount>[0-9]*(?:,[0-9]{3})*(?:\.[0-9]*)?)$')
transfer = transfer_command.match(request)
confirm_command = re.compile(r'^(?P<confirm_code>[0-9]{%d})$' %
int(config_db['code_length']))
confirm = confirm_command.match(request)
_init_pending_transfer_db()
if transfer:
to_number, amount = transfer.groups()
amount = freeswitch_strings.parse_credits(amount).amount_raw
# Translate everything into IMSIs.
try:
to_imsi = subscriber.get_imsi_from_number(to_number)
_, resp = process_transfer(from_imsi, to_imsi, amount)
except SubscriberNotFound:
resp = gt("Invalid phone number: %(number)s" %
{'number': to_number})
elif confirm:
# The code is the whole request, so no need for groups.
code = request.strip()
_, resp = process_confirm(from_imsi, code)
else:
# NOTE: Sent when the user tries to transfer credit with the wrong
# format message.
resp = gt("To transfer credit, reply with a message in the"
" format 'NUMBER*AMOUNT'.")
from_number = subscriber.get_numbers_from_imsi(from_imsi)[0]
sms.send(str(from_number), str(config_db['app_number']), str(resp))