def m_sasl_plain(info):
cli = info['source']
data = info['data']
account, authorization_id, passphrase = data.split(b'\x00')
account = str(account, 'utf8')
passphrase = str(passphrase, 'utf8')
account_info = cli.ctx.data.get('account.{}'.format(account), None)
if (account_info and 'passphrase' in account_info['credentials']
and account_info['verified']):
passphrase_hash = account_info['credentials']['passphrase']
if cli.ctx.hashing.verify(passphrase, passphrase_hash):
cli.account = account
eventmgr_core.dispatch('account change', {
'source': cli,
'account': account,
})
cli.sasl = None
hostmask = cli.hostmask
if hostmask is None:
hostmask = '*'
cli.dump_numeric('900', [
hostmask, account,
'You are now logged in as {}'.format(account)
])
cli.dump_numeric('903', ['SASL authentication successful'])
return
cli.dump_numeric('904', ['SASL authentication failed'])
def m_PRIVMSG(cli, ev_msg):
targetlist = ev_msg["params"][0].split(",")
message = ev_msg["params"][1]
for target in targetlist:
if target[0] != "#":
cli_tg = cli.ctx.clients.get(target, None)
if not cli_tg:
cli.dump_numeric("401", [target, "No such nick/channel"])
continue
eventmgr_core.dispatch(
"client message", {"source": cli, "target": cli_tg, "target_name": target, "message": message}
)
continue
ch = cli.ctx.chmgr.get(target)
if not ch:
cli.dump_numeric("401", [target, "No such nick/channel"])
continue
if not ch.can_send(cli):
cli.dump_numeric("404", [ch.name, "Cannot send to channel"])
continue
eventmgr_core.dispatch(
"channel message", {"source": cli, "target": ch, "target_name": target, "message": message}
)
def m_PRIVMSG(cli, ev_msg):
targetlist = ev_msg['params'][0].split(',')
message = ev_msg['params'][1]
for target in targetlist:
if target[0] != '#':
cli_tg = cli.ctx.clients.get(target, None)
if not cli_tg:
cli.dump_numeric('401', [target, 'No such nick/channel'])
continue
eventmgr_core.dispatch(
'client message', {
'source': cli,
'target': cli_tg,
'target_name': target,
'message': message,
})
continue
ch = cli.ctx.chmgr.get(target)
if not ch:
cli.dump_numeric('401', [target, 'No such nick/channel'])
continue
if not ch.can_send(cli):
cli.dump_numeric('404', [ch.name, 'Cannot send to channel'])
continue
eventmgr_core.dispatch(
'channel message', {
'source': cli,
'target': ch,
'target_name': target,
'message': message,
})
def m_CAP_REQ(cli, ev_msg):
cap_add = []
cap_del = []
args = ev_msg['params'][1]
def dump_NAK(cli):
cli.dump_numeric('CAP', ['NAK', args + ' '])
for arg in args.split():
negate = arg[0] == '-'
if negate:
arg = arg[1:]
if arg not in caplist:
dump_NAK(cli)
return
if negate:
if arg not in cli.caps:
dump_NAK(cli)
return
cap_del.append(arg)
continue
if arg in cli.caps:
dump_NAK(cli)
return
cap_add.append(arg)
cli.dump_numeric('CAP',
['ACK', ' '.join(cap_add) + ' -'.join(cap_del) + ' '])
# we accepted the changeset, so apply it
info = {
'client': cli,
'caps': cap_add,
}
eventmgr_core.dispatch('cap add', info)
info = {
'client': cli,
'caps': cap_del,
}
eventmgr_core.dispatch('cap del', info)
def m_CAP_REQ(cli, ev_msg):
cap_add = []
cap_del = []
args = ev_msg["params"][1]
def dump_NAK(cli):
cli.dump_numeric("CAP", ["NAK", args + " "])
for arg in args.split():
negate = arg[0] == "-"
if negate:
arg = arg[1:]
if arg not in caplist:
dump_NAK(cli)
return
if negate:
if arg not in cli.caps:
dump_NAK(cli)
return
cap_del.append(arg)
continue
if arg in cli.caps:
dump_NAK(cli)
return
cap_add.append(arg)
cli.dump_numeric("CAP", ["ACK", " ".join(cap_add) + " -".join(cap_del) + " "])
# we accepted the changeset, so apply it
info = {"client": cli, "caps": cap_add}
eventmgr_core.dispatch("cap add", info)
info = {"client": cli, "caps": cap_del}
eventmgr_core.dispatch("cap del", info)
def m_reg_create_empty(info):
cli = info['source']
cli.ctx.data.put('account.{}'.format(info['account']), {
'account': info['account'],
'credentials': {
'passphrase': cli.ctx.hashing.encrypt(info['credential']),
},
'registered_ts': cli.ctx.current_ts,
'registered_by': cli.hostmask,
'verified': True,
})
cli.dump_numeric('920', [info['account'], 'Account created'])
cli.account = info['account']
eventmgr_core.dispatch('account change', {
'source': cli,
'account': cli.account,
})
cli.dump_numeric('900', [cli.hostmask, info['account'],
'You are now logged in as {}'.format(info['account'])])
cli.dump_numeric('903', ['Authentication successful'])
def m_AUTHENTICATE(cli, ev_msg):
if len(ev_msg['params']) == 1 and ev_msg['params'][0] == '*':
if getattr(cli, 'sasl', None):
cli.dump_numeric('906', ['SASL authentication aborted'])
cli.sasl = None
else:
cli.dump_numeric('904', ['SASL authentication failed'])
return
if getattr(cli, 'sasl', None):
if len(ev_msg['params'][0]) > 400:
cli.dump_numeric('905', ['SASL message too long'])
cli.sasl = None
return
try:
data = base64.b64decode(ev_msg['params'][0])
except binascii.Error:
cli.dump_numeric('904', ['SASL authentication failed'])
return
eventmgr_core.dispatch(
'sasl authenticate {}'.format(cli.sasl.casefold()), {
'source': cli,
'mechanism': cli.sasl,
'data': data,
})
else:
mechanism = ev_msg['params'][0].upper()
if mechanism in valid_mechanisms:
cli.sasl = mechanism
cli.dump_verb('AUTHENTICATE', '+')
else:
cli.dump_numeric('904', ['SASL authentication failed'])
return
def m_REG(cli, ev_msg):
params = list(ev_msg['params'])
subcmd = params.pop(0).casefold()
if subcmd == 'create':
account = params.pop(0).casefold()
if account == '*':
cli.dump_numeric('922', [account, 'Invalid params: "*" is not a valid account name'])
return
account_data = cli.ctx.data.get('account.{}'.format(account), {})
if account_data:
global verify_timeout_seconds
if (account_data['verified'] or account_data['registered_ts'] + verify_timeout_seconds > cli.ctx.current_ts):
cli.dump_numeric('921', [account, 'Account already exists'])
return
# account verify expired, delete old account
if not account_data['verified']:
cli.ctx.data.delete('account.{}'.format(account))
global enabled_cb_types
callback = params.pop(0).casefold()
if callback == '*':
cb_namespace = '*'
callback = None,
elif ':' in callback:
cb_namespace, callback = callback.split(':', 1)
else:
# as in the spec, default to the first advertised callback type
if enabled_cb_types[0] == 'none' and len(enabled_cb_types) > 1:
cb_namespace = enabled_cb_types[1]
else:
cb_namespace = enabled_cb_types[0]
if cb_namespace not in enabled_cb_types:
cli.dump_numeric('929', [account, cb_namespace, 'Callback token is invalid'])
return
if len(params) > 1:
cred_type, credential = params[:2]
elif len(params) == 1:
cred_type = 'passphrase'
credential = params.pop(0)
else:
cli.dump_numeric('461', [ev_msg['verb'], 'Not enough parameters'])
return
global supported_cred_types
if cred_type not in supported_cred_types:
cli.dump_numeric('928', [account, cred_type, 'Credential type is invalid'])
return
eventmgr_core.dispatch('reg callback {}'.format(cb_namespace), {
'source': cli,
'account': account,
'callback': callback,
'cb_namespace': cb_namespace,
'cred_type': cred_type,
'credential': credential,
})
elif subcmd == 'verify':
account = params.pop(0).casefold()
account_info = cli.ctx.data.get('account.{}'.format(account), None)
if account_info:
if account_info['verified']:
cli.dump_numeric('924', [account, 'Account already verified'])
return
auth_code = params.pop(0)
if auth_code == account_info['auth_code']:
account_info['verified'] = True
del account_info['auth_code']
cli.ctx.data.put('account.{}'.format(account), account_info)
cli.dump_numeric('923', [account, 'Account verification successful'])
cli.account = account
eventmgr_core.dispatch('account change', {
'source': cli,
'account': account,
})
cli.dump_numeric('900', [cli.hostmask, account,
'You are now logged in as {}'.format(account)])
cli.dump_numeric('903', ['Authentication successful'])
else:
cli.dump_numeric('925', [account, 'Invalid verification code'])
else:
cli.dump_numeric('400', ['REG', 'VERIFY', 'Account does not exist'])
else:
cli.dump_numeric('400', ['REG', ev_msg['params'][0], 'Unknown subcommand'])
