def validate_signature(signature, data):
data_json = json.loads(data.decode('hex'))
sig_cryptor = Cryptor(pubkey_hex=data_json['pubkey'])
if sig_cryptor.verify(signature, data):
return True
else:
return False
def validate_signature(signature, data):
data_json = json.loads(data.decode('hex'))
sig_cryptor = Cryptor(pubkey_hex=data_json['pubkey'])
if sig_cryptor.verify(signature, data):
return True
else:
return False
def encrypt(self, data):
"""
Encrypt the data with self.pub and return the ciphertext.
@raises Exception: The encryption failed.
"""
assert self.pub, "Attempt to encrypt without key."
cryptor = Cryptor(pubkey_hex=self.pub)
return cryptor.encrypt(data)
def encrypt(self, data):
"""
Encrypt the data with self.pub and return the ciphertext.
@raises Exception: The encryption failed.
"""
assert self.pub, "Attempt to encrypt without key."
cryptor = Cryptor(pubkey_hex=self.pub)
return cryptor.encrypt(data)
def __init__(self, ip, port, pubkey, secret, ctx, guid, data_cb):
super(CryptoPeerListener, self).__init__(ip, port, ctx, guid, data_cb)
self.pubkey = pubkey
self.secret = secret
# FIXME: refactor this mess
# this was copied as is from CryptoTransportLayer
# soon all crypto code will be refactored and this will be removed
self.cryptor = Cryptor(pubkey_hex=self.pubkey, privkey_hex=self.secret)
def update_listings_index(self):
"""This method is responsible for updating the DHT index of your
store's listings. There is a dictionary in the DHT that has an
array of your listing IDs. This updates that listing index in
the DHT, simply put.
"""
# Store to marketplace listing index
contract_index_key = hashlib.sha1('contracts-%s' %
self.transport.guid).hexdigest()
hashvalue = hashlib.new('ripemd160')
hashvalue.update(contract_index_key)
contract_index_key = hashvalue.hexdigest()
# Calculate index of contracts
contract_ids = self.db.selectEntries("contracts", {
"market_id": self.transport.market_id,
"deleted": 0
})
my_contracts = []
for contract_id in contract_ids:
my_contracts.append(contract_id['key'])
self.log.debug("My Contracts: %s", my_contracts)
# Sign listing index for validation and tamper resistance
data_string = str({
'guid': self.transport.guid,
'contracts': my_contracts
})
cryptor = Cryptor(privkey_hex=self.transport.settings['secret'])
signature = cryptor.sign(data_string)
value = {
'signature': signature.encode('hex'),
'data': {
'guid': self.transport.guid,
'contracts': my_contracts
}
}
# Pass off to thread to keep GUI snappy
t = Thread(target=self.transport.store,
args=(
contract_index_key,
value,
self.transport.guid,
))
t.start()
def update_listings_index(self):
"""This method is responsible for updating the DHT index of your
store's listings. There is a dictionary in the DHT that has an
array of your listing IDs. This updates that listing index in
the DHT, simply put.
"""
# Store to marketplace listing index
contract_index_key = hashlib.sha1('contracts-%s' %
self.transport.guid).hexdigest()
hashvalue = hashlib.new('ripemd160')
hashvalue.update(contract_index_key)
contract_index_key = hashvalue.hexdigest()
# Calculate index of contracts
contract_ids = self.db.selectEntries(
"contracts",
{"market_id": self.transport.market_id, "deleted": 0}
)
my_contracts = []
for contract_id in contract_ids:
my_contracts.append(contract_id['key'])
self.log.debug("My Contracts: %s", my_contracts)
# Sign listing index for validation and tamper resistance
data_string = str({'guid': self.transport.guid,
'contracts': my_contracts})
cryptor = Cryptor(privkey_hex=self.transport.settings['secret'])
signature = cryptor.sign(data_string)
value = {
'signature': signature.encode('hex'),
'data': {
'guid': self.transport.guid,
'contracts': my_contracts
}
}
# Pass off to thread to keep GUI snappy
t = Thread(
target=self.transport.store,
args=(
contract_index_key,
value,
self.transport.guid,
)
)
t.start()
def __init__(self, ip, port, pubkey, secret, ctx, guid, data_cb):
super(CryptoPeerListener, self).__init__(ip, port, ctx, guid, data_cb)
self.pubkey = pubkey
self.secret = secret
# FIXME: refactor this mess
# this was copied as is from CryptoTransportLayer
# soon all crypto code will be refactored and this will be removed
self.cryptor = Cryptor(pubkey_hex=self.pubkey, privkey_hex=self.secret)
def _setup_settings(self):
try:
self.settings = self.db.selectEntries(
"settings", {"market_id": self.market_id})
except (OperationalError, DatabaseError) as e:
print e
raise SystemExit(
"database file %s corrupt or empty - cannot continue" %
self.db.db_path)
if len(self.settings) == 0:
self.settings = {"market_id": self.market_id, "welcome": "enable"}
self.db.insertEntry("settings", self.settings)
else:
self.settings = self.settings[0]
# Generate PGP key during initial setup or if previous PGP gen failed
if not self.settings.get('PGPPubKey'):
try:
self.log.info(
'Generating PGP keypair. This may take several minutes...')
print 'Generating PGP keypair. This may take several minutes...'
gpg = gnupg.GPG()
input_data = gpg.gen_key_input(
key_type="RSA",
key_length=2048,
name_email='*****@*****.**',
name_comment="Autogenerated by Open Bazaar",
passphrase="P@ssw0rd")
assert input_data is not None
key = gpg.gen_key(input_data)
assert key is not None
pubkey_text = gpg.export_keys(key.fingerprint)
newsettings = {
"PGPPubKey": pubkey_text,
"PGPPubkeyFingerprint": key.fingerprint
}
self.db.updateEntries("settings", newsettings,
{"market_id": self.market_id})
self.settings.update(newsettings)
self.log.info('PGP keypair generated.')
except Exception as e:
sys.exit("Encountered a problem with GPG: %s" % e)
if not self.settings.get('pubkey'):
# Generate Bitcoin keypair
self._generate_new_keypair()
if not self.settings.get('nickname'):
newsettings = {'nickname': 'Default'}
self.db.updateEntries('settings', newsettings,
{"market_id": self.market_id})
self.settings.update(newsettings)
self.nickname = self.settings.get('nickname', '')
self.secret = self.settings.get('secret', '')
self.pubkey = self.settings.get('pubkey', '')
self.privkey = self.settings.get('privkey')
self.btc_pubkey = privkey_to_pubkey(self.privkey)
self.guid = self.settings.get('guid', '')
self.sin = self.settings.get('sin', '')
self.bitmessage = self.settings.get('bitmessage', '')
if not self.settings.get('bitmessage'):
# Generate Bitmessage address
if self.bitmessage_api is not None:
self._generate_new_bitmessage_address()
self.cryptor = Cryptor(pubkey_hex=self.pubkey, privkey_hex=self.secret)
# In case user wants to override with command line passed bitmessage values
if self.ob_ctx.bm_user is not None and \
self.ob_ctx.bm_pass is not None and \
self.ob_ctx.bm_port is not None:
self._connect_to_bitmessage()
class CryptoPeerListener(PeerListener):
def __init__(self, ip, port, pubkey, secret, ctx, guid, data_cb):
super(CryptoPeerListener, self).__init__(ip, port, ctx, guid, data_cb)
self.pubkey = pubkey
self.secret = secret
# FIXME: refactor this mess
# this was copied as is from CryptoTransportLayer
# soon all crypto code will be refactored and this will be removed
self.cryptor = Cryptor(pubkey_hex=self.pubkey, privkey_hex=self.secret)
@staticmethod
def is_handshake(message):
"""
Return whether message is a plaintext handshake
:param message: serialized JSON
:return: True if proper handshake message
"""
try:
message = json.loads(message)
except (ValueError, TypeError):
return False
return 'type' in message
def _on_raw_message(self, serialized):
"""
Handles receipt of encrypted/plaintext message
and passes to appropriate callback.
:param serialized:
:return:
"""
if not self.is_handshake(serialized):
try:
message = self.cryptor.decrypt(serialized)
message = json.loads(message)
signature = message['sig'].decode('hex')
signed_data = message['data']
if CryptoPeerListener.validate_signature(
signature, signed_data):
message = signed_data.decode('hex')
message = json.loads(message)
if message.get('guid') != self.guid:
return
else:
return
except RuntimeError as e:
self.log.error('Could not decrypt message properly %s', e)
return
except Exception as e:
self.log.error('Cannot unpack data: %s', e)
return
else:
message = json.loads(serialized)
self.log.debugv('Received message of type "%s"',
message.get('type', 'unknown'))
self._data_cb(message)
@staticmethod
def validate_signature(signature, data):
data_json = json.loads(data.decode('hex'))
sig_cryptor = Cryptor(pubkey_hex=data_json['pubkey'])
if sig_cryptor.verify(signature, data):
return True
else:
return False
def sign(self, data):
cryptor = Cryptor(privkey_hex=self.transport.settings['secret'])
return cryptor.sign(data)
class CryptoPeerListener(PeerListener):
def __init__(self, ip, port, pubkey, secret, ctx, guid, data_cb):
super(CryptoPeerListener, self).__init__(ip, port, ctx, guid, data_cb)
self.pubkey = pubkey
self.secret = secret
# FIXME: refactor this mess
# this was copied as is from CryptoTransportLayer
# soon all crypto code will be refactored and this will be removed
self.cryptor = Cryptor(pubkey_hex=self.pubkey, privkey_hex=self.secret)
@staticmethod
def is_handshake(message):
"""
Return whether message is a plaintext handshake
:param message: serialized JSON
:return: True if proper handshake message
"""
try:
message = json.loads(message)
except (ValueError, TypeError):
return False
return 'type' in message
def _on_raw_message(self, serialized):
"""
Handles receipt of encrypted/plaintext message
and passes to appropriate callback.
:param serialized:
:return:
"""
if not self.is_handshake(serialized):
try:
message = self.cryptor.decrypt(serialized)
message = json.loads(message)
signature = message['sig'].decode('hex')
signed_data = message['data']
if CryptoPeerListener.validate_signature(signature, signed_data):
message = signed_data.decode('hex')
message = json.loads(message)
if message.get('guid') != self.guid:
return
else:
return
except RuntimeError as e:
self.log.error('Could not decrypt message properly %s', e)
return
except Exception as e:
self.log.error('Cannot unpack data: %s', e)
return
else:
message = json.loads(serialized)
self.log.info('Message [%s]', message.get('type'))
self._data_cb(message)
@staticmethod
def validate_signature(signature, data):
data_json = json.loads(data.decode('hex'))
sig_cryptor = Cryptor(pubkey_hex=data_json['pubkey'])
if sig_cryptor.verify(signature, data):
return True
else:
return False
def sign(self, data):
cryptor = Cryptor(privkey_hex=self.transport.settings['secret'])
return cryptor.sign(data)
