def sendall(self, x):
try:
msgid, tp, dat0 = x.split(b'\0', 2)
if msgid in known_pkts: return
known_pkts.add(msgid)
if tp == b'eMSG':
tgt, dat = dat0.split(b'\0', 1)
if tgt == bot_hash.encode('ascii'):
dat2 = cryptutil.decrypt(dat, bot_key, 'd')
sndr, tp2, dat3 = dat2.split(b'\0', 2)
if tp2 == b'MSG':
msgid2, rec, sndr2, tp3, dat4 = dat3.split(b'\0', 4)
if tp3 == b'KEY':
key = cryptutil.import_binary_key(dat4[:-128])
known_keys[cryptutil.hash(key)] = key
sndr1 = sndr.decode('ascii', 'replace')
if sndr1 in known_keys:
if not cryptutil.check_sign(dat2, known_keys[sndr1]): print('Badly signed!')
if tp2 == b'MSG':
if msgid2 in known_msgs: return
known_msgs.add(msgid2)
if tp3 == b'RELAY':
msg2 = dat4[:-128].split(b'\0', 2)[2]
if msg2.startswith(b'eMSG\0'):
msg2 = b'EMSG\0'+msg2.split(b'\0', 2)[2]
msg2 = msgid2+b'\0'+msg2
self.queue.put(msg2)
self.send_encrypted_back(sndr, b'ACK\0'+bot_hash.encode('ascii')+b'\0'+sndr+b'\0'+msgid2)
else: self.queue.put(os.urandom(8).hex().encode('ascii')+b'\0MSG\0'+os.urandom(8).hex().encode('ascii')+b'\0'+sndr+b'\0'+bot_hash.encode('ascii')+b'\0NEEDKEY\0')
except Exception:
import traceback
traceback.print_exc()
def import_contact(c, interactive=True):
try:
if isinstance(c, bytes):
c = json.loads(c.decode('utf-8'))
if interactive:
print('Import this contact?')
print('Peers:')
for k, v in c['peers'].items():
print('*',
format_nickname(cryptutil.hash(cryptutil.import_key(k))))
if v != None:
print(' (@%s)' % v)
if k in c['trusted']:
print(' (trusted)')
print('Sockets:')
for x in c['sockets']:
print('*', x)
print('Relays:')
for k, v in c['relays'].items():
print('* %s via %s' % (format_nickname(k), format_nickname(v)))
print('Exclusive routes:')
for k, v in c['exclusive'].items():
print('* %s excl. via %s' % (format_nickname(k), v))
try:
input('Press Enter to continue, Ctrl+C to abort')
except KeyboardInterrupt:
return
for k, v in c['peers'].items():
config['peers'][cryptutil.hash(cryptutil.import_key(k))] = k
if v != None:
config['nicknames'][cryptutil.hash(
cryptutil.import_key(k))] = v
if cryptutil.hash(cryptutil.import_key(k)) in c['trusted']:
config['trusted'].append(
cryptutil.hash(cryptutil.import_key(k)))
for x in c['sockets']:
if x not in config['sockets']:
start_peer_socket(x)
config['sockets'].append(x)
config['relays'].update(c['relays'])
config['exclusive'].update(c['exclusive'])
update_config()
except:
print('Error during contact import:', file=sys.stderr)
sys.excepthook(*sys.exc_info())
def handle_incoming(pktid, idx, dat, flags, verified_as, rec):
if not (flags & F_FORWARDED):
if idx in msg_cache: return
msg_cache.add(idx)
frontend.event('msg_pkt_id', idx.decode('ascii', 'replace'),
pktid.decode('ascii', 'replace'))
# print(dat)
snd0, tp, dat = dat.split(b'\0', 2)
snd = snd0.decode('ascii', 'replace')
if not (flags & F_VERIFIED) and snd in config['peers']:
frontend.warn('Warning: message %s not verified, may be spoofed' %
idx.decode('ascii', 'replace'))
elif (flags & F_VERIFIED) and snd != verified_as:
frontend.warn('Warning: message %s: sender spoofed, dropping' %
idx.decode('ascii', 'replace'))
return
if rec != self.encode('ascii'):
frontend.event('originally_written', idx.decode('ascii', 'replace'),
format_nickname(rec.decode('ascii', 'replace')))
# print('message:', snd0, tp, dat)
if tp == b'NEEDKEY':
send_key_to(snd)
return
if tp == b'MSG':
frontend.event('incoming_msg', idx.decode('ascii', 'replace'),
format_nickname(snd), dat)
elif tp == b'KEY':
key = cryptutil.import_binary_key(dat)
config['peers'][cryptutil.hash(key)] = cryptutil.export_key(key)
elif tp == b'RELAY':
tgt, relayed, msg = dat.split(b'\0', 2)
tgt = tgt.decode('ascii', 'replace')
if snd in config['trusted'] and not (
flags & F_FORWARDED) or tgt in config['exclusive'] and config[
'exclusive'][tgt].startswith('python://'):
send_msg(tgt,
b'RELAYED\0' + msg,
relay_idx=float('inf') if relayed == b'0' else 0)
else:
frontend.warn('Warning: RELAY message from an untrusted source')
elif tp == b'RELAYED':
handle_packet(idx + b'\0' + dat, F_RELAYED)
elif tp == b'FORWARD':
frontend.event('was_forwarded', idx.decode('ascii', 'replace'),
format_nickname(snd0.decode('ascii', 'replace')))
handle_packet(idx + b'\0' + dat, F_FORWARDED)
elif tp == b'CONTACT':
saved_contacts[idx.decode('ascii', 'replace')] = dat
frontend.event('incoming_contact', idx.decode('ascii', 'replace'),
format_nickname(snd0.decode('ascii', 'replace')))
else:
frontend.warn('Warning: dropping unknown message type: %r' % tp)
BOT_KEY = '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'
import cryptutil, queue, os
bot_key = cryptutil.import_key(BOT_KEY)
bot_hash = cryptutil.hash(bot_key.publickey())
known_keys = {}
known_pkts = set()
known_msgs = set()
class TheSocket:
def __init__(self):
self.queue = queue.Queue()
def recv(self, x):
return self.queue.get()
def send_encrypted_back(self, sndr, x):
sndr1 = sndr.decode('ascii', 'replace')
self.queue.put(os.urandom(8).hex().encode('ascii')+b'\0eMSG\0'+sndr+b'\0'+cryptutil.encrypt(cryptutil.sign(bot_hash.encode('ascii')+b'\0'+x, bot_key), known_keys[sndr1], 'e'))
def sendall(self, x):
try:
msgid, tp, dat0 = x.split(b'\0', 2)
if msgid in known_pkts: return
known_pkts.add(msgid)
if tp == b'eMSG':
tgt, dat = dat0.split(b'\0', 1)
if tgt == bot_hash.encode('ascii'):
dat2 = cryptutil.decrypt(dat, bot_key, 'd')
sndr, tp2, dat3 = dat2.split(b'\0', 2)
if tp2 == b'MSG':
msgid2, rec, sndr2, tp3, dat4 = dat3.split(b'\0', 4)
import json, sys, cryptutil, base64
data = open(sys.argv[1]).read().split('\n')
assert data[0].startswith('BOT_KEY = ')
bot_key = eval(data[0][10:])
bot_id = cryptutil.hash(cryptutil.import_key(bot_key).publickey())
if '--devel' in sys.argv:
path = repr(os.path.abspath(sys.argv[1]))
data = ('exec(compile(open(' + path + ', "rb").read(), ' + path +
', "exec"))').encode('utf-8')
else:
data = open(sys.argv[1], 'rb').read()
sock = 'python://' + ''.join(base64.b64encode(data).decode('ascii').split())
print(
json.dumps({
'peers': {
cryptutil.export_key(cryptutil.import_key(bot_key).publickey()):
sys.argv[2]
},
'trusted': [bot_id],
'sockets': [sock],
'relays': {},
'exclusive': {
bot_id: sock
}
}))
def handle_packet(msg, flags=0, verified_as=None, sender=None):
if flags & F_FORWARDED: flags |= F_RELAYED
idx, tp, dat = msg.split(b'\0', 2)
if idx in pkt_cache: return
pkt_cache.add(idx)
# print('[relayed=%r][verified=%r][forwarded=%r] %r'%(bool(flags&F_RELAYED), bool(flags&F_VERIFIED), bool(flags&F_FORWARDED), msg))
if tp == b'EMSG':
# if not (flags & F_EMSG_NOFORWARD): print('true EMSG! hi anonymity!')
dat0 = cryptutil.decrypt(dat, privkey, 'd')
if flags & F_EMSG_NOFORWARD: flags &= ~F_EMSG_NOFORWARD
else: send_pkt(msg)
if dat0 == None:
return #not for our eyes
snd, dat = dat0[:-128].split(b'\0', 1)
snd = snd.decode('ascii', 'replace')
if snd not in config['peers']:
tp0, dat0 = dat.split(b'\0', 1)
if tp0 == b'MSG':
idx1, rec1, snd1, tp1, dat1 = dat0.split(b'\0', 4)
if tp1 == b'KEY':
# print('key is:', dat1)
key = cryptutil.import_binary_key(dat1)
# print('from %r: got key of %r'%(snd, cryptutil.hash(key)))
config['peers'][cryptutil.hash(
key)] = cryptutil.export_key(key)
update_config()
elif tp0 == b'ACK':
return
if snd not in config['peers']:
send_msg(snd, b'NEEDKEY\0')
return
if not cryptutil.check_sign(
dat0, cryptutil.import_key(config['peers'][snd])):
frontend.warn('Warning: invalid EMSG signature')
return
else:
pkt_cache.remove(idx)
msgid = handle_packet(idx + b'\0' + dat,
flags | F_VERIFIED | F_ENCRYPTED, snd,
sender)
if msgid != None:
saved_msgs[msgid.decode('ascii',
'replace')] = b'SIGNED\0' + dat0
return msgid
if tp == b'eMSG':
rec, dat0 = dat.split(b'\0', 1)
if rec != self.encode('ascii'):
send_pkt(msg, rec.decode('ascii', 'replace'))
return
else:
pkt_cache.remove(idx)
return handle_packet(idx + b'\0EMSG\0' + dat0,
flags | F_EMSG_NOFORWARD, verified_as, sender)
if tp == b'SIGNED':
dat0 = dat
snd, dat = dat0[:-128].split(b'\0', 1)
snd = snd.decode('ascii', 'replace')
if snd not in config['peers']:
frontend.warn(
'Warning: could not validate SIGNED message, no public key available'
)
elif not cryptutil.check_sign(
dat0, cryptutil.import_key(config['peers'][snd])):
frontend.warn('Warning: dropping incorrectly SIGNED message')
return
pkt_cache.remove(idx)
return handle_packet(idx + b'\0' + dat, flags | F_VERIFIED, snd,
sender)
if tp == b'MSG' and not (flags & F_RELAYED):
idx2, rec, dat0 = dat.split(b'\0', 2)
if rec == self.encode('ascii'):
handle_send_ack(idx2, dat0)
if tp == b'MSG':
idx2, rec, dat = dat.split(b'\0', 2)
if rec == self.encode('ascii') or (flags & F_FORWARDED):
handle_incoming(idx, idx2, dat, flags, verified_as, rec)
saved_msgs[idx2.decode('ascii', 'replace')] = msg.split(b'\0',
1)[1]
return idx2
else:
send_pkt(msg, rec)
elif tp == b'ACK':
snd, rec, idx2 = dat.split(b'\0', 2)
if rec == self.encode('ascii'):
try:
del sender_pool[idx2.decode('ascii', 'replace')]
except KeyError:
pass
else:
rs[snd].recalc(sender)
frontend.event('delivered', idx2.decode('ascii', 'replace'))
else:
send_pkt(msg, rec)
else:
frontend.warn('Warning: dropping unrecognized packet: %r' % msg)
def unimport_contact(c, interactive=True):
try:
if isinstance(c, bytes):
c = json.loads(c.decode('utf-8'))
if interactive:
print('Unimport this contact?')
print('Peers:')
for k, v in c['peers'].items():
print('*',
format_nickname(cryptutil.hash(cryptutil.import_key(k))))
if v != None:
print(' (@%s)' % v)
if k in c['trusted']:
print(' (trusted)')
print('Sockets:')
for x in c['sockets']:
print('*', x)
print('Relays:')
for k, v in c['relays'].items():
print('* %s via %s' % (format_nickname(k), format_nickname(v)))
print('Exclusive routes:')
for k, v in c['exclusive'].items():
print('* %s excl. via %s' % (format_nickname(k), v))
try:
input('Press Enter to continue, Ctrl+C to abort')
except KeyboardInterrupt:
return
for k, v in c['peers'].items():
try:
del config['peers'][cryptutil.hash(cryptutil.import_key(k))]
except KeyError:
frontend.warn('Warning: %s was not in your contacts' %
cryptutil.hash(cryptutil.import_key(k)))
if v != None:
try:
del config['nicknames'][cryptutil.hash(
cryptutil.import_key(k))]
except KeyError:
frontend.warn('Warning: @%s was not in your contacts' % v)
if cryptutil.hash(cryptutil.import_key(k)) in c['trusted']:
try:
config['trusted'].remove(
cryptutil.hash(cryptutil.import_key(k)))
except ValueError:
frontend.warn('Warning: %s was not in your trust list' %
cryptutil.hash(cryptutil.import_key(k)))
for x in c['sockets']:
if x in config['sockets']:
# start_peer_socket(x)
try:
config['sockets'].remove(x)
except ValueError:
frontend.warn(
'Warning: socket %s was not in your socket list' % x)
else:
frontend.warn(
'Note: socket %s removed from your socket list, will be disconnected on client restart'
% x)
for r in c['relays']:
try:
del config['relays'][r]
except ValueError:
frontend.warn('Warning: no relay was configured for %s' % r)
for r in c['exclusive']:
try:
del config['exclusive'][r]
except ValueError:
frontend.warn(
'Warning: no exclusive socket was configured for %s' % r)
update_config()
except:
print('Error during contact unimport:', file=sys.stderr)
sys.excepthook(*sys.exc_info())
pass
x[0] = socketutil.create_socket(addr)
def receiver_thread():
while True:
try:
msgq.put((x[0].recv(1048576), q))
except:
pass
threading.Thread(target=sender_thread, daemon=True).start()
threading.Thread(target=receiver_thread, daemon=True).start()
pkt_cache = set()
self = cryptutil.hash(pubkey)
if self not in config['peers']:
config['peers'][self] = cryptutil.export_key(pubkey)
update_config()
frontend.event('i_am', self)
saved_msgs = dbhelper.DBDict('msgs', binary=True)
saved_contacts = dbhelper.DBDict('contacts', binary=True)
def receiver_loop():
while True:
msg, snd = msgq.get()
try:
handle_packet(msg, sender=snd)
except: