def test_get_set_stored_gas_price(self):
"""
Checks default stored gas price and set method.
"""
# checks default
assert Settings.get_stored_gas_price() == 4
# checks set
Settings.set_stored_gas_price(42)
assert Settings.get_stored_gas_price() == 42
def test_get_set_is_persistent_keystore(self):
"""
Checks default persist value and set method.
"""
# checks default
assert Settings.is_persistent_keystore() is False
# checks set
Settings.set_is_persistent_keystore(True)
assert Settings.is_persistent_keystore() is True
def test_get_set_stored_network(self):
"""
Checks default stored network and set method.
"""
# checks default
assert Settings.get_stored_network() == ChainID.MAINNET
# checks set
Settings.set_stored_network(ChainID.ROPSTEN)
assert Settings.get_stored_network() == ChainID.ROPSTEN
def sync_keystore_to_non_persistent(cls):
"""
Copies keystore from persistent to non persistent storage.
"""
# TODO: handle dir doesn't exist
source_dir = os.path.join(Settings.get_persistent_keystore_path(),
KEYSTORE_DIR_SUFFIX)
destination_dir = os.path.join(
Settings.get_non_persistent_keystore_path(), KEYSTORE_DIR_SUFFIX)
cls.sync_to_directory(source_dir, destination_dir)
def load_settings(self):
"""
Load json store settings to UI properties.
"""
self.is_stored_mainnet = Settings.is_stored_mainnet()
self.is_stored_testnet = Settings.is_stored_testnet()
self.stored_gas_price = Settings.get_stored_gas_price()
is_persistent_keystore = (Settings.is_persistent_keystore()
and check_write_permission())
self.set_persist_keystore_switch_state(is_persistent_keystore)
def store_is_persistent_keystore(self):
"""
Saves the persistency option to the store.
Note that to save `True` we also check if we have write permissions.
"""
persist_keystore = self.is_ui_persistent_keystore()
persist_keystore = persist_keystore and check_write_permission()
persistency_toggled = (Settings.is_persistent_keystore() !=
persist_keystore)
if persistency_toggled:
self.sync_keystore(persist_keystore)
Settings.set_is_persistent_keystore(persist_keystore)
def on_permissions_callback(permissions, grant_results):
"""
On write permission callback, toggles loading account from
persistent keystore if granted.
Also loads the current account to the app.
This is called from the Java thread, hence the `@mainthread`.
Find out more on the p4a permissions callback in:
https://github.com/kivy/python-for-android/pull/1818
"""
if all(grant_results):
Settings.set_is_persistent_keystore(True)
self.try_load_current_account()
def test_get_android_keystore_prefix(self):
"""
The keystore prefix should be the same as user_data_dir by default.
But it can also be persisted to the sdcard.
"""
assert Settings.is_persistent_keystore() is False
prefix = Settings._get_android_keystore_prefix()
assert prefix == self.app.user_data_dir
with mock.patch.object(Settings,
'is_persistent_keystore',
return_value=True):
prefix = Settings._get_android_keystore_prefix()
assert prefix == '/sdcard/pywallet'
def pywalib(self):
"""
Gets or creates the PyWalib object.
Also recreates the object if the keystore_path changed.
"""
keystore_path = Settings.get_keystore_path()
chain_id = Settings.get_stored_network()
if self._pywalib is None or \
self._pywalib.keystore_dir != keystore_path or \
self._pywalib.chain_id != chain_id:
self._pywalib = PyWalib(
keystore_dir=keystore_path, chain_id=chain_id)
return self._pywalib
def fetch_balance(self):
"""
Fetches the new balance & sets accounts_balance property.
"""
if self.current_account is None:
return
address = '0x' + self.current_account.address.hex()
chain_id = Settings.get_stored_network()
try:
balance = PyWalib.get_balance(address, chain_id)
except ConnectionError:
Dialog.on_balance_connection_error()
Logger.warning('ConnectionError', exc_info=True)
return
except ValueError:
# most likely the JSON object could not be decoded, refs #91
# currently logged as an error, because we want more insight
# in order to eventually handle it more specifically
Dialog.on_balance_value_error()
Logger.error('ValueError', exc_info=True)
return
except UnknownEtherscanException:
# also handles uknown errors, refs #112
Dialog.on_balance_unknown_error()
Logger.error('UnknownEtherscanException', exc_info=True)
return
# triggers accounts_balance observers update
self.accounts_balance[address] = balance
def setup(self):
self.controller = App.get_running_app().controller
self.keystore_path = Settings.get_keystore_path()
accounts = self.controller.pywalib.get_account_list()
if len(accounts) == 0:
title = "No keystore found."
body = "Import or create one."
dialog = Dialog.create_dialog(title, body)
dialog.open()
def fetch_history(self):
if self.current_account is None:
return
chain_id = Settings.get_stored_network()
address = '0x' + self.current_account.address.hex()
try:
transactions = PyWalib.get_transaction_history(address, chain_id)
except ConnectionError:
Dialog.on_history_connection_error()
Logger.warning('ConnectionError', exc_info=True)
return
except NoTransactionFoundException:
transactions = []
except ValueError:
# most likely the JSON object could not be decoded, refs #91
Dialog.on_history_value_error()
# currently logged as an error, because we want more insight
# in order to eventually handle it more specifically
Logger.error('ValueError', exc_info=True)
return
# triggers accounts_history observers update
self.controller.accounts_history[address] = transactions
def unlock_send_transaction(self):
"""
Unlocks the account with password in order to sign and publish the
transaction.
"""
controller = App.get_running_app().controller
pywalib = controller.pywalib
address = to_checksum_address(self.send_to_address)
amount_eth = float(self.ids.send_amount_id.text)
amount_wei = int(amount_eth * pow(10, 18))
gas_price_gwei = Settings.get_stored_gas_price()
gas_price_wei = int(gas_price_gwei * (10**9))
account = controller.current_account
Dialog.snackbar_message("Unlocking account...")
try:
account.unlock(self.password)
except ValueError:
Dialog.snackbar_message("Could not unlock account")
return
Dialog.snackbar_message("Unlocked! Sending transaction...")
sender = account.address
try:
pywalib.transact(address,
value=amount_wei,
data='',
sender=sender,
gasprice=gas_price_wei)
except InsufficientFundsException:
Dialog.snackbar_message("Insufficient funds")
return
except UnknownEtherscanException:
Dialog.snackbar_message("Unknown error")
Logger.error('UnknownEtherscanException', exc_info=True)
return
# TODO: handle ConnectionError
Dialog.snackbar_message("Sent!")
def test_is_stored_testnet(self):
Settings.set_stored_network(ChainID.MAINNET)
assert Settings.is_stored_testnet() is False
Settings.set_stored_network(ChainID.ROPSTEN)
assert Settings.is_stored_testnet() is True
def store_gas_price(self):
"""
Saves gas price value to the store.
"""
gas_price = self.get_ui_gas_price()
Settings.set_stored_gas_price(gas_price)
def store_network(self):
"""
Saves selected network to the store.
"""
network = self.get_ui_network()
Settings.set_stored_network(network)
