def test_verify_challenge_tx_donot_contain_managedata_operation(self):
server_kp = Keypair.random()
client_kp = Keypair.random()
timeout = 600
network = 'TESTNET'
challenge = Builder(server_kp.seed().decode(),
network=network,
sequence=-1,
fee=100)
now = int(time.time())
challenge.add_time_bounds({'minTime': now, 'maxTime': now + timeout})
challenge.append_bump_sequence_op(12,
source=client_kp.address().decode())
challenge.sign()
challenge_tx_server_signed = challenge.gen_xdr()
transaction = Builder(client_kp.seed().decode(),
network='TESTNET',
sequence=0,
fee=100)
transaction.import_from_xdr(challenge_tx_server_signed)
transaction.sign()
challenge_tx = transaction.gen_xdr()
with pytest.raises(InvalidSep10ChallengeError,
match="Operation type should be ManageData."):
Builder.verify_challenge_tx(challenge_tx,
server_kp.address().decode(),
'TESTNET')
def trust_asset(issuingkeys, receivingkeys, assetcode):
builder = Builder(secret=issuingkeys.seed().decode(), network='TESTNET')
builder.append_trust_op(destination=issuingkeys.address(
).decode(), code=assetcode, source=receivingkeys.address().decode())
builder.sign(secret=issuingkeys.seed().decode())
builder.sign(secret=receivingkeys.seed().decode())
return builder.submit()
def test_verify_challenge_tx_source_is_different_to_server_account_id(
self):
server_kp = Keypair.random()
client_kp = Keypair.random()
network = 'TESTNET'
challenge = Builder(server_kp.seed().decode(),
network=network,
sequence=-1,
fee=100)
challenge.sign()
challenge_tx_server_signed = challenge.gen_xdr()
transaction = Builder(client_kp.seed().decode(),
network='TESTNET',
sequence=0,
fee=100)
transaction.import_from_xdr(challenge_tx_server_signed)
transaction.sign()
challenge_tx = transaction.gen_xdr()
with pytest.raises(
InvalidSep10ChallengeError,
match=
"Transaction source account is not equal to server's account."
):
Builder.verify_challenge_tx(challenge_tx,
Keypair.random().address().decode(),
'TESTNET')
def test_verify_challenge_tx(self):
server_kp = Keypair.random()
client_kp = Keypair.random()
timeout = 600
network = 'Public Global Stellar Network ; September 2015'
archor_name = "SDF"
challenge = Builder.challenge_tx(
server_secret=server_kp.seed().decode(),
client_account_id=client_kp.address().decode(),
archor_name=archor_name,
network=network,
timeout=timeout)
challenge.sign()
challenge_tx_server_signed = challenge.gen_xdr()
transaction = Builder(
client_kp.seed().decode(),
network='Public Global Stellar Network ; September 2015',
sequence=0,
fee=100)
transaction.import_from_xdr(challenge_tx_server_signed)
transaction.sign()
challenge_tx = transaction.gen_xdr()
Builder.verify_challenge_tx(
challenge_tx,
server_kp.address().decode(),
'Public Global Stellar Network ; September 2015')
def test_builder_xdr(setup, helpers, test_data):
hot = Keypair.random()
hot_account = hot.address().decode()
hot_secret = hot.seed()
helpers.fund_account(setup, hot_account)
cold = Builder(secret=test_data.cold_secret, horizon=setup.horizon_endpoint_uri, network=setup.network) \
.append_trust_op(test_data.cold_account, 'BEER', '1000', hot_account) \
.append_allow_trust_op(hot_account, 'BEER', True, test_data.cold_account) \
.append_payment_op(hot_account, '100', 'BEER', test_data.cold_account, test_data.cold_account) \
.append_payment_op(test_data.cold_account, '2.222', 'BEER', test_data.cold_account, hot_account)
cold.sign()
xdr = cold.gen_xdr()
hot = Builder(secret=hot_secret,
horizon=setup.horizon_endpoint_uri,
network=setup.network)
hot.import_from_xdr(xdr)
hot.sign()
assert len(hot.te.signatures) == 2
assert len(hot.ops) == 4
response = hot.submit()
assert response.get('hash') == hot.hash_hex()
class Build:
"""Creates a transaction between the sender and receiver.
:param: sender: Account that sends the money (seed).
:param: receiver: Account that receives the money (Account ID).
:param: amount: Amount that needs to be sent.
"""
def __init__(self, sender, receiver, amount=0):
self.sender, self.receiver, self.amount = sender, receiver, amount
self.builder = None
def send(self):
"""Text Memo needs to be added."""
if self.check_account_validity:
self.builder = Builder(
secret=self.sender,
horizon='https://horizon-testnet.stellar.org')
self.builder.append_payment_op(self.receiver, self.amount)
self.builder.sign()
self.builder.submit()
return True
return False
@property
def check_account_validity(self):
return Details(self.receiver).check
def bounty_dispatcher(document, amount):
"""
Dispatch amount specified to the destination address
:param document: Desetination address
:param amount: Amount of nwc to dispatch
:return: response object
"""
for line in document:
builder = Builder(secret=REAL_SEED, network='public')
builder.add_text_memo(
"NWC bounty reward amount: {}".format(amount)).append_payment_op(
destination=line,
amount=amount,
asset_code='NWC',
asset_issuer=ISSUER)
builder.sign()
response = builder.submit()
print(response)
with open("bounty.log", "a+") as log:
log.write("\n")
log.write(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
log.write("\n")
log.write("=============================================")
log.write("\n")
log.write(json.dumps(response))
log.write("\n")
return response
def trust_asset(text):
if CONF['private_key'] == '':
print(
'no private key setup - use set to set key or c to create wallet')
return
val = text.split(' ')
if len(val) != 3:
print('invalid syntax please use trust anchor asset')
return
url = 'https://raw.githubusercontent.com/stellarterm/stellarterm/master/directory/directory.json'
r = requests.get(url)
b = json.loads(r.text)
asset_name = val[-1].upper()
asset_anchor = val[1]
try:
asset_key = b['anchors'][asset_anchor]['assets'][asset_name].split(
'-')[1]
except:
print('unabled to find anchor or asset so quiting trust')
return
trst = Builder(CONF['private_key'], network=CONF['network'])
if val[0] == 'trust':
print('trusting.. ' + asset_name + ' ' + asset_key)
trst.append_trust_op(asset_key, asset_name)
else:
print('untrust ' + asset_name + ' ' + asset_key +
' please ensure your balance is 0 before this operation')
trst.append_trust_op(asset_key, asset_name, limit=0)
trst.sign()
trst.submit()
def burn_tokens(address):
"""
Burn the recent payments to the address for the percent specified in the BURN_RATE constant
:param address: address to burn the tokens on
:return: response object
"""
# get recent payments
address_obj = Address(address=address)
payments = address_obj.payments()
asset_sum = 0
for payment in payments:
asset_sum += payment
burn_sum = asset_sum * BURN_RATE
# send the BURN % of tokens to the issuer ultimately taking them out of circulation
builder = Builder(secret=REAL_SEED, network='public')
builder.add_text_memo(
"NWC daily burn: {}".format(burn_sum)).append_payment_op(
destination=ISSUER,
amount=burn_sum,
asset_code='NWC',
asset_issuer=ISSUER)
builder.sign()
response = builder.submit()
return response
def __send(self, address, encrypted, sequence_number):
'''
Sends the encrypted blocks to the recipient as sequential
payment transactions.
Args:
address: The Stellar address of the recipient.
encrypted: The encrypted message blocks.
sequence_number: The current sequence number of the
sending account.
Returns:
True if successful, False otherwise.
'''
try:
for i in range(0, len(encrypted)):
sequence = str(sequence_number + i)
builder = Builder(secret = self.__seed, sequence = sequence)
builder.append_payment_op(address, '0.0000001', 'XLM')
builder.add_hash_memo(encrypted[i])
builder.sign()
builder.submit()
except:
return False
# todo: check sending status
return True
def create_transaction(sender_seed, recipient_key, hash_value):
builder = Builder(secret=sender_seed)
builder.append_payment_op(recipient_key, "1", "XLM")
builder.add_hash_memo(hash_value.encode())
builder.sign()
# TODO: handle possible errors
return builder.submit()
def submit_operations(account_seed, operations, transaction_memo):
"""
This method signs the given operations and submits them to the Stellar network
:param str account_seed: Seed of the account submitting the operations. It is required to sign the transactions.
:param Operation operations: Operations to be submitted.
:param str transaction_memo: Text memo to be included in Stellar transaction. Maximum size of 28 bytes.
:return: Returns a string containing the server response or None if the transaction could not be submitted.
:rtype: str or None
"""
try:
builder = Builder(secret=account_seed)
except Exception:
# Too broad exception because no specific exception is being thrown by the stellar_base package.
# TODO: This should be fixed in future versions
print("An error occurred (Please check your Internet connection)")
return None
builder.add_text_memo(transaction_memo)
for operation in operations:
builder.append_op(operation)
builder.sign()
try:
return builder.submit()
except Exception:
# Too broad exception because no specific exception is being thrown by the stellar_base package.
# TODO: This should be fixed in future versions
print("An error occurred (Please check your Internet connection)")
return None
def test_verify_challenge_tx_contains_infinite_timebounds(self):
server_kp = Keypair.random()
client_kp = Keypair.random()
timeout = 600
network = 'TESTNET'
archor_name = 'sdf'
challenge = Builder(server_kp.seed().decode(),
network=network,
sequence=-1,
fee=100)
now = int(time.time())
challenge.add_time_bounds({'minTime': now, 'maxTime': 0})
nonce = os.urandom(64)
challenge.append_manage_data_op(
data_name='{} auth'.format(archor_name),
data_value=nonce,
source=client_kp.address().decode())
challenge.sign()
challenge_tx_server_signed = challenge.gen_xdr()
transaction = Builder(client_kp.seed().decode(),
network='TESTNET',
sequence=0,
fee=100)
transaction.import_from_xdr(challenge_tx_server_signed)
transaction.sign()
challenge_tx = transaction.gen_xdr()
with pytest.raises(
InvalidSep10ChallengeError,
match="Transaction requires non-infinite timebounds."):
Builder.verify_challenge_tx(challenge_tx,
server_kp.address().decode(),
'TESTNET')
def send_asset(text):
# send 10 EURT antb123*papayame.com or send 1 XLM PUBKEY memo text
if CONF['private_key'] == '':
print(
'no private key setup - pls type set to set key or c to create wallet'
)
return
val = text.split()
memo_type = 'text'
if len(val) < 3:
print(
'invalid syntax please use send amount asset receiver e.g. s 10 EURT antb123*papayame.com'
)
return
amount, asset, address = val[1], val[2].upper(), val[3]
if '*' in address:
res = fed(address.split('*')[1], address)
sendto = res['account_id']
memo = res['memo']
memo_type = res['memo_type']
else:
sendto = address
memo = ''
# override memo, type if given
if len(val) == 6:
memo = val[4]
memo_type = val[5]
if len(val) == 5:
memo = val[4]
memo_type = 'text'
print_formatted_text(
HTML("""Are you sure you want to send
<ansiyellow>%s</ansiyellow>
<ansired>%s %s</ansired>
with memo of <ansiblue>%s</ansiblue> (y/n)
""" % (sendto, asset, amount, memo)))
text = session.prompt(u'> ', default='y')
if text != 'y': return
ret, asset_issuer = get_balance_issuer(amount, asset)
if ret: return
retsan = send_sanity(sendto, memo_type, asset)
if not retsan: return
send = Builder(CONF['private_key'], network=CONF['network'])
if asset != 'XLM':
send.append_payment_op(sendto, amount, asset, asset_issuer)
else:
send.append_payment_op(sendto, amount)
if memo != '' and memo_type == 'text':
send.add_text_memo(memo)
if memo != '' and memo_type == 'id':
send.add_id_memo(memo)
if CONF['multisig'] != '':
print(
'You have 2of2 multisig - send this data to the other key to sign when you get it back type signsend data'
)
print(send.gen_xdr())
return
send.sign()
send.submit()
def create_stellar_deposit(transaction_id):
transaction = Transaction.objects.get(id=transaction_id)
# Assume transaction has valid stellar_account, amount_in, asset.name
stellar_account = transaction.stellar_account
payment_amount = transaction.amount_in - transaction.amount_fee
asset = transaction.asset.name
# If the given Stellar account does not exist, create
# the account with at least enough XLM for the minimum
# reserve and a trust line (recommended 2.01 XLM), update
# the transaction in our internal database, and return.
address = Address(stellar_account)
try:
address.get()
except HorizonError as e:
# 404 code corresponds to Resource Missing.
if e.status_code == 404:
starting_balance = settings.ACCOUNT_STARTING_BALANCE
builder = Builder(secret=settings.STELLAR_ACCOUNT_SEED)
builder.append_create_account_op(
destination=stellar_account,
starting_balance=starting_balance,
source=settings.STELLAR_ACCOUNT_ADDRESS,
)
builder.sign()
try:
builder.submit()
except HorizonError as exception:
raise exception
transaction.status = Transaction.STATUS.pending_trust
transaction.save()
return
# If the account does exist, deposit the desired amount of the given
# asset via a Stellar payment. If that payment succeeds, we update the
# transaction to completed at the current time. If it fails due to a
# trustline error, we update the database accordingly. Else, we do not update.
builder = Builder(secret=settings.STELLAR_ACCOUNT_SEED)
builder.append_payment_op(
destination=stellar_account,
asset_code=asset,
asset_issuer=settings.STELLAR_ACCOUNT_ADDRESS,
amount=str(payment_amount),
)
builder.sign()
try:
builder.submit()
except HorizonError as exception:
if TRUSTLINE_FAILURE_XDR in exception.message:
transaction.status = Transaction.STATUS.pending_trust
transaction.save()
return
# If we reach here, the Stellar payment succeeded, so we
# can mark the transaction as completed.
transaction.status = Transaction.STATUS.completed
transaction.completed_at = now()
transaction.amount_out = payment_amount
transaction.save()
def send_payment(request,amount,currency,sender,account):
builder = Builder(secret=sender)
builder.append_payment_op(account,amount,currency)
builder.add_text_memo("first payment")
builder.sign()
s = builder.submit()
print(s['_links'])
return HttpResponse("send successfully plz check user transaction here")
def set_account(settype, var1):
print('set account')
sa = Builder(CONF['private_key'], network=CONF['network'])
if settype == 'inflation':
sa.append_set_options_op(inflation=var1)
else:
sa.append_set_options_op(home_domain=var1)
sa.sign()
sa.submit()
def create_trustline(self, secret, code):
builder = Builder(secret=secret, network=self.network)
builder.append_trust_op(
self.issuer_keypair.address().decode(),
code,
limit='0.0000001'
)
builder.sign()
return builder.submit()
def lock(systemdb, Account): q = Query() a_sk = systemdb.search(q.name == Account)[0]['sk'] b = Builder(secret = a_sk, network='TESTNET') b.append_set_options_op(master_weight=0, low_threshold=1, med_threshold=1, high_threshold=1) b.sign() print b.submit()
def test_import_from_xdr(self, setup, test_data):
builder = Builder(secret=test_data.cold_secret, sequence=1, horizon_uri=setup.horizon_endpoint_uri,
network=setup.network) \
.append_manage_data_op("hello", "world") \
.add_time_bounds({'minTime': 1534392138, 'maxTime': 1534392238})
builder.sign()
old_xdr = builder.gen_xdr()
old_hash = builder.hash()
new_hash = Builder(
secret=test_data.cold_secret).import_from_xdr(old_xdr).hash()
assert new_hash == old_hash
def test_import_from_xdr_custom_network(self, setup, test_data):
builder = Builder(secret=test_data.cold_secret, sequence=1, horizon_uri=setup.horizon_endpoint_uri,
network='CUSTOM_NETWORK') \
.append_manage_data_op("hello", "world")
builder.sign()
old_xdr = builder.gen_xdr()
old_hash = builder.hash()
new_hash = Builder(
secret=test_data.cold_secret,
network='CUSTOM_NETWORK').import_from_xdr(old_xdr).hash()
assert new_hash == old_hash
def trust_asset(setup, secret_key, memo_text=None):
"""A helper to establish a trustline"""
builder = Builder(secret=secret_key,
horizon_uri=setup.horizon_endpoint_uri,
network=setup.network)
builder.append_trust_op(setup.test_asset.issuer, setup.test_asset.code)
if memo_text:
builder.add_text_memo(memo_text[:28]) # max memo length is 28
builder.sign()
reply = builder.submit()
return reply.get('hash')
def pay(message, amount, secret, address):
sender_secret = secret
receiver_address = address
builder = Builder(secret=sender_secret,
horizon_uri=None,
network='TESTNET')
builder.add_text_memo(message).append_payment_op(
destination=receiver_address, amount=amount, asset_code='XLM')
builder.sign()
response = builder.submit()
def test_next_builder(self, setup, test_data):
builder = Builder(secret=test_data.cold_secret, sequence=1, horizon_uri=setup.horizon_endpoint_uri,
network=setup.network) \
.append_manage_data_op("hello", "world")
builder.sign()
next_builder = builder.next_builder()
assert next_builder.keypair == builder.keypair
assert next_builder.horizon.horizon_uri == builder.horizon.horizon_uri
assert next_builder.address == builder.address
assert next_builder.network == builder.network
assert next_builder.fee == builder.fee
assert next_builder.sequence == builder.sequence + 1
def create_signed_tx(private_key,
to_address,
amount,
network='PUBLIC',
memo=None):
amount = round(amount, 7)
builder = Builder(secret=private_key, network=network)
builder.append_payment_op(to_address, amount, 'XLM')
if memo:
builder.add_text_memo(memo)
builder.sign()
return builder.gen_xdr().decode()
def send_asset(cls, setup, secret_key, address, amount, memo_text=None):
"""A helper to send asset"""
builder = Builder(secret=secret_key,
horizon_uri=setup.horizon_endpoint_uri,
network=setup.network)
builder.append_payment_op(address, amount, setup.test_asset.code,
setup.test_asset.issuer)
if memo_text:
builder.add_text_memo(memo_text[:28]) # max memo length is 28
builder.sign()
reply = builder.submit()
return reply.get('hash')
def data( systemdb, Account, name, message): q = Query() a_sk = systemdb.search(q.name == Account)[0]['sk'] b = Builder(secret = a_sk, network='TESTNET') b.append_manage_data_op(name, message) b.sign() print b.submit()
def award_degree(self, address, student_name, birthdate, year):
"""Sends a transaction with a hash of the student's informations as text memo.
:param student_name: in format prenamesurname with only one prename
:param year: 4-digits number
:return: Horizon return of the tx
"""
memo = hash128((student_name+birthdate+year).encode())
builder = Builder(secret=self.kp.seed().decode())
builder.add_text_memo(memo)
builder.append_payment_op(address, 0.0000001)
builder.sign()
return builder.submit()
def transfer_lumen(sender, to_address, amount, memo=None):
# type: (User, str, float, Optional[str]) -> None
# ToDo: check remaining lumen of sending account (fee + base reserve)
# (take base reserve https://www.stellar.org/developers/guides/concepts/fees.html)
builder = Builder(secret=sender.stellaraccount.seed, network=network)
builder.append_payment_op(to_address, str(amount), 'XLM')
if memo:
builder.add_text_memo(memo) # string length <= 28 bytes
builder.sign()
builder.submit()
def cancel_all_offers(self):
# 取消当前交易对的所有委单
offers = self.handle_offers_data()
builder = Builder(secret=self.seed, network=self.network, horizon=self.horizon_url)
for offer in offers:
builder.append_manage_offer_op(selling_code=self.selling_asset.code,
selling_issuer=self.selling_asset.issuer,
buying_code=self.buying_asset.code,
buying_issuer=self.buying_asset.issuer,
amount='0',
price='1',
offer_id=offer['id'])
builder.sign()
builder.submit()
def send(self, destination, amount):
destination = check_pay_by_name(destination, "XLM")
wallet = Wallet.objects.get(user=self.user, name=self.coin)
try:
builder = Builder(secret=wallet.private)
builder.add_text_memo("EXMR, Stellar!").append_payment_op(
destination=destination.strip(),
amount=str(amount),
asset_code='XLM')
builder.sign()
response = builder.submit()
return response["hash"]
except:
return {"error": "insufficient funds"}
def test_builder(self):
cold_account = self.cold.address().decode()
hot_account = self.hot.address().decode()
fund(cold_account)
cold = Builder(self.cold.seed().decode()) \
.append_create_account_op(hot_account, 200) \
.append_set_options_op(inflation_dest=cold_account, set_flags=1,
home_domain='256kw.com', master_weight=10,
low_threshold=5, ) \
.append_trust_op(cold_account, 'BEER', 1000, source=hot_account) \
.append_allow_trust_op(hot_account, 'BEER', True)
# append twice for test
cold.append_payment_op(hot_account, 50.123, 'BEER', cold_account) \
.append_payment_op(hot_account, 50.123, 'BEER', cold_account)
cold.sign(self.hot.seed().decode())
try: # sign twice
cold.sign(self.hot.seed().decode())
except SignatureExistError:
assert True
except:
assert False
cold.sign()
assert len(cold.te.signatures) == 2
assert len(cold.ops) == 5
try:
response = cold.submit()
print(response)
except:
assert False
def create_offers(self):
# 创建挂单。这里是两个订单
# 买入价格 = 买一价 * (1 - buying_rate)
# 卖出价格 = 卖一价 * (1 + selling_rate)
market_price = self.get_price()
builder = Builder(secret=self.seed, network=self.network, horizon=self.horizon_url)
# 卖出 base_asset
selling_price = round(float(market_price['ask']) * (1 + self.selling_rate), 7)
builder.append_manage_offer_op(selling_code=self.selling_asset.code, selling_issuer=self.selling_asset.issuer,
buying_code=self.buying_asset.code,
buying_issuer=self.buying_asset.issuer,
amount=self.selling_amount, price=selling_price)
# 买入 base_asset
buying_tmp_price = float(market_price['bid']) * (1 - self.buying_rate)
buying_price = round(1 / buying_tmp_price, 7)
buying_amount = round(self.buying_amount * buying_tmp_price, 7)
builder.append_manage_offer_op(selling_code=self.buying_asset.code,
selling_issuer=self.buying_asset.issuer,
buying_code=self.selling_asset.code,
buying_issuer=self.selling_asset.issuer,
amount=buying_amount,
price=buying_price)
builder.sign()
builder.submit()