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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-22 23:48:12 +00:00

trezorlib: factor out NEM to a separate module

This commit is contained in:
matejcik 2018-03-15 16:14:24 +01:00
parent a5e3d50fb0
commit f87d931ce7
3 changed files with 184 additions and 114 deletions

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@ -25,7 +25,6 @@ import time
import binascii
import hashlib
import unicodedata
import json
import getpass
import warnings
@ -34,6 +33,7 @@ from mnemonic import Mnemonic
from . import messages as proto
from . import tools
from . import mapping
from . import nem
from .coins import coins_slip44
from .debuglink import DebugLink
from .protobuf import MessageType
@ -718,120 +718,12 @@ class ProtocolMixin(object):
@expect(proto.NEMSignedTx)
def nem_sign_tx(self, n, transaction):
n = self._convert_prime(n)
try:
msg = nem.create_sign_tx(transaction)
except ValueError as e:
raise CallException(e.message)
def common_to_proto(common):
msg = proto.NEMTransactionCommon()
msg.network = (common["version"] >> 24) & 0xFF
msg.timestamp = common["timeStamp"]
msg.fee = common["fee"]
msg.deadline = common["deadline"]
if "signed" in common:
msg.signer = binascii.unhexlify(common["signer"])
return msg
def transfer_to_proto(transfer):
msg = proto.NEMTransfer()
msg.recipient = transfer["recipient"]
msg.amount = transfer["amount"]
if "payload" in transfer["message"]:
msg.payload = binascii.unhexlify(transfer["message"]["payload"])
if transfer["message"]["type"] == 0x02:
msg.public_key = binascii.unhexlify(transfer["message"]["publicKey"])
if "mosaics" in transfer:
msg._extend_mosaics(proto.NEMMosaic(
namespace=mosaic["mosaicId"]["namespaceId"],
mosaic=mosaic["mosaicId"]["name"],
quantity=mosaic["quantity"],
) for mosaic in transfer["mosaics"])
return msg
def aggregate_modification_to_proto(aggregate_modification, msg):
msg._extend_modifications(proto.NEMCosignatoryModification(
type=modification["modificationType"],
public_key=binascii.unhexlify(modification["cosignatoryAccount"]),
) for modification in aggregate_modification["modifications"])
if "minCosignatories" in aggregate_modification:
msg.relative_change = aggregate_modification["minCosignatories"]["relativeChange"]
def provision_namespace_to_proto(provision_namespace, msg):
msg.namespace = provision_namespace["newPart"]
if provision_namespace["parent"]:
msg.parent = provision_namespace["parent"]
msg.sink = provision_namespace["rentalFeeSink"]
msg.fee = provision_namespace["rentalFee"]
def mosaic_creation_to_proto(mosaic_creation):
msg = proto.NEMMosaicCreation()
msg.definition.namespace = mosaic_creation["mosaicDefinition"]["id"]["namespaceId"]
msg.definition.mosaic = mosaic_creation["mosaicDefinition"]["id"]["name"]
if mosaic_creation["mosaicDefinition"]["levy"]:
msg.definition.levy = mosaic_creation["mosaicDefinition"]["levy"]["type"]
msg.definition.fee = mosaic_creation["mosaicDefinition"]["levy"]["fee"]
msg.definition.levy_address = mosaic_creation["mosaicDefinition"]["levy"]["recipient"]
msg.definition.levy_namespace = mosaic_creation["mosaicDefinition"]["levy"]["mosaicId"]["namespaceId"]
msg.definition.levy_mosaic = mosaic_creation["mosaicDefinition"]["levy"]["mosaicId"]["name"]
msg.definition.description = mosaic_creation["mosaicDefinition"]["description"]
for property in mosaic_creation["mosaicDefinition"]["properties"]:
name = property["name"]
value = json.loads(property["value"])
if name == "divisibility":
msg.definition.divisibility = value
elif name == "initialSupply":
msg.definition.supply = value
elif name == "supplyMutable":
msg.definition.mutable_supply = value
elif name == "transferable":
msg.definition.transferable = value
msg.sink = mosaic_creation["creationFeeSink"]
msg.fee = mosaic_creation["creationFee"]
return msg
def mosaic_supply_change_to_proto(mosaic_supply_change):
msg = proto.NEMMosaicSupplyChange()
msg.namespace = mosaic_supply_change["mosaicId"]["namespaceId"]
msg.mosaic = mosaic_supply_change["mosaicId"]["name"]
msg.type = mosaic_supply_change["supplyType"]
msg.delta = mosaic_supply_change["delta"]
return msg
msg = proto.NEMSignTx()
msg.transaction = common_to_proto(transaction)
msg.transaction._extend_address_n(n)
msg.cosigning = (transaction["type"] == 0x1002)
if msg.cosigning or transaction["type"] == 0x1004:
transaction = transaction["otherTrans"]
msg.multisig = common_to_proto(transaction)
elif "otherTrans" in transaction:
raise CallException("Transaction does not support inner transaction")
if transaction["type"] == 0x0101:
msg.transfer = transfer_to_proto(transaction)
elif transaction["type"] == 0x1001:
aggregate_modification_to_proto(transaction, msg.aggregate_modification)
elif transaction["type"] == 0x2001:
provision_namespace_to_proto(transaction, msg.provision_namespace)
elif transaction["type"] == 0x4001:
msg = mosaic_creation_to_proto(transaction)
elif transaction["type"] == 0x4002:
msg.mosaic_supply_change = mosaic_supply_change_to_proto(transaction)
else:
raise CallException("Unknown transaction type")
msg.address_n = n
return self.call(msg)
def verify_message(self, coin_name, address, signature, message):

140
trezorlib/nem.py Normal file
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@ -0,0 +1,140 @@
import binascii
import json
from . import messages as proto
TYPE_MOSAIC_TRANSFER = 0x0101
TYPE_IMPORTANCE_TRANSFER = 0x0801
TYPE_MULTISIG_CHANGE = 0x1001
TYPE_MULTISIG_SIGN = 0x1002
TYPE_MULTISIG_TX = 0x1004
TYPE_PROVISION_NAMESPACE = 0x2001
TYPE_MOSAIC_DEFINITION_CREATION = 0x4001
TYPE_MOSAIC_SUPPLY_CHANGE = 0x4002
def create_transaction_common(transaction):
msg = proto.NEMTransactionCommon()
msg.network = (transaction["version"] >> 24) & 0xFF
msg.timestamp = transaction["timeStamp"]
msg.fee = transaction["fee"]
msg.deadline = transaction["deadline"]
if "signed" in transaction:
msg.signer = binascii.unhexlify(transaction["signer"])
return msg
def create_transfer(transaction):
msg = proto.NEMTransfer()
msg.recipient = transaction["recipient"]
msg.amount = transaction["amount"]
if "payload" in transaction["message"]:
msg.payload = binascii.unhexlify(transaction["message"]["payload"])
if transaction["message"]["type"] == 0x02:
msg.public_key = binascii.unhexlify(transaction["message"]["publicKey"])
if "mosaics" in transaction:
msg.mosaics = [proto.NEMMosaic(
namespace=mosaic["mosaicId"]["namespaceId"],
mosaic=mosaic["mosaicId"]["name"],
quantity=mosaic["quantity"],
) for mosaic in transaction["mosaics"]]
return msg
def create_aggregate_modification(transactions):
msg = proto.NEMAggregateModification()
msg.modifications = [proto.NEMCosignatoryModification(
type=modification["modificationType"],
public_key=binascii.unhexlify(modification["cosignatoryAccount"]),
) for modification in transactions["modifications"]]
if "minCosignatories" in transactions:
msg.relative_change = transactions["minCosignatories"]["relativeChange"]
return msg
def create_provision_namespace(transaction):
msg = proto.NEMProvisionNamespace()
msg.namespace = transaction["newPart"]
if transaction["parent"]:
msg.parent = transaction["parent"]
msg.sink = transaction["rentalFeeSink"]
msg.fee = transaction["rentalFee"]
def create_mosaic_creation(transaction):
definition = transaction["mosaicDefinition"]
msg = proto.NEMMosaicCreation()
msg.definition = proto.NEMMosaicDefinition()
msg.definition.namespace = definition["id"]["namespaceId"]
msg.definition.mosaic = definition["id"]["name"]
if definition["levy"]:
msg.definition.levy = definition["levy"]["type"]
msg.definition.fee = definition["levy"]["fee"]
msg.definition.levy_address = definition["levy"]["recipient"]
msg.definition.levy_namespace = definition["levy"]["mosaicId"]["namespaceId"]
msg.definition.levy_mosaic = definition["levy"]["mosaicId"]["name"]
msg.definition.description = definition["description"]
for property in definition["properties"]:
name = property["name"]
value = json.loads(property["value"])
if name == "divisibility":
msg.definition.divisibility = value
elif name == "initialSupply":
msg.definition.supply = value
elif name == "supplyMutable":
msg.definition.mutable_supply = value
elif name == "transferable":
msg.definition.transferable = value
msg.sink = transaction["creationFeeSink"]
msg.fee = transaction["creationFee"]
return msg
def create_supply_change(transaction):
msg = proto.NEMMosaicSupplyChange()
msg.namespace = transaction["mosaicId"]["namespaceId"]
msg.mosaic = transaction["mosaicId"]["name"]
msg.type = transaction["supplyType"]
msg.delta = transaction["delta"]
return msg
def create_sign_tx(transaction):
msg = proto.NEMSignTx()
msg.transaction = create_transaction_common(transaction)
msg.cosigning = (transaction["type"] == TYPE_MULTISIG_SIGN)
if transaction["type"] in (TYPE_MULTISIG_SIGN, TYPE_MULTISIG_TX):
transaction = transaction["otherTrans"]
msg.multisig = create_transaction_common(transaction)
elif "otherTrans" in transaction:
raise ValueError("Transaction does not support inner transaction")
if transaction["type"] == TYPE_MOSAIC_TRANSFER:
msg.transfer = create_transfer(transaction)
elif transaction["type"] == TYPE_MULTISIG_CHANGE:
msg.aggregate_modification = create_aggregate_modification(transaction)
elif transaction["type"] == TYPE_PROVISION_NAMESPACE:
msg.provision_namespace = create_provision_namespace(transaction)
elif transaction["type"] == TYPE_MOSAIC_DEFINITION_CREATION:
msg.mosaic_creation = create_mosaic_creation(transaction)
elif transaction["type"] == TYPE_MOSAIC_SUPPLY_CHANGE:
msg.mosaic_supply_change = create_supply_change(transaction)
else:
raise ValueError("Unknown transaction type")
return msg

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@ -0,0 +1,38 @@
import binascii
from trezorlib import nem
def test_nem_basic():
transaction = {
"timeStamp": 76809215,
"amount": 1000000,
"fee": 1000000,
"recipient": "TALICE2GMA34CXHD7XLJQ536NM5UNKQHTORNNT2J",
"type": nem.TYPE_MOSAIC_TRANSFER,
"deadline": 76895615,
"version": (0x98 << 24),
"message": {
"payload": binascii.hexlify(b'hello world'),
"type": 1,
},
"mosaics": [
{
"mosaicId": {
"namespaceId": "nem",
"name": "xem",
},
"quantity": 1000000,
},
],
}
msg = nem.create_sign_tx(transaction)
# this is basically just a random sampling of expected properties
assert msg.transaction is not None
assert msg.transfer is not None
assert len(msg.transfer.mosaics) == 1
assert msg.transfer.mosaics[0].namespace == "nem"
assert msg.aggregate_modification is None
assert msg.provision_namespace is None