class Create(QDialog, MessageBoxMixin):
def __init__(self, parent, plugin, wallet_name, password, manager):
QDialog.__init__(self, parent)
self.main_window = parent
self.wallet = parent.wallet
self.plugin = plugin
self.wallet_name = wallet_name
self.config = parent.config
self.password = None
self.contract = None
self.version = 1
if self.wallet.has_password():
self.main_window.show_error(
_("Plugin requires password. It will get access to your private keys."
))
self.password = parent.password_dialog()
if not self.password:
print("no password")
self.plugin.switch_to(Intro, self.wallet_name, None, None)
self.fund_domain = None
self.fund_change_address = None
self.sender_address = self.wallet.get_unused_address()
self.receiver_address = None
self.arbiter_address = None
self.total_value = 0
index = self.wallet.get_address_index(self.sender_address)
key = self.wallet.keystore.get_private_key(index, self.password)
self.privkey = int.from_bytes(key[0], 'big')
if isinstance(self.wallet, Multisig_Wallet):
self.main_window.show_error(
"Simple Escrow Plugin is designed for single signature wallets."
)
vbox = QVBoxLayout()
self.setLayout(vbox)
hbox = QHBoxLayout()
vbox.addLayout(hbox)
l = QLabel("<b>%s</b>" % (_("Creatin 2-of-3 Multisig contract:")))
hbox.addWidget(l)
hbox.addStretch(1)
b = QPushButton(_("Home"))
b.clicked.connect(
lambda: self.plugin.switch_to(Intro, self.wallet_name, None, None))
hbox.addWidget(b)
l = QLabel(
_("Refund address") +
": auto (this wallet)") # self.refreshing_address.to_ui_string())
vbox.addWidget(l)
l = QLabel(_("Receiver address: "))
vbox.addWidget(l)
self.receiver_address_wid = QLineEdit()
self.receiver_address_wid.textEdited.connect(
self.new_contract_info_changed)
vbox.addWidget(self.receiver_address_wid)
l = QLabel(_("Arbiter address: "))
vbox.addWidget(l)
self.arbiter_address_wid = QLineEdit()
self.arbiter_address_wid.textEdited.connect(
self.new_contract_info_changed)
vbox.addWidget(self.arbiter_address_wid)
self.value_wid = BTCAmountEdit(self.main_window.get_decimal_point)
self.value_wid.setAmount(1000000)
self.value_wid.textEdited.connect(self.new_contract_info_changed)
vbox.addWidget(self.value_wid)
b = QPushButton(_("Create Escrow Contract"))
b.clicked.connect(self.create_new_contract)
vbox.addStretch(1)
vbox.addWidget(b)
self.create_button = b
self.create_button.setDisabled(True)
vbox.addStretch(1)
def new_contract_info_changed(self, ):
# if any of the txid/out#/value changes
try:
self.total_value = self.value_wid.get_amount()
self.receiver_address = Address.from_string(
self.receiver_address_wid.text())
self.arbiter_address = Address.from_string(
self.arbiter_address_wid.text())
addresses = [
self.receiver_address, self.sender_address,
self.arbiter_address
]
except:
self.create_button.setDisabled(True)
else:
self.create_button.setDisabled(False)
self.contract = MultisigContract(addresses,
v=self.version,
data=None)
def build_otputs(self):
outputs = []
outputs.append((TYPE_SCRIPT, ScriptOutput(self.contract.op_return), 0))
for a in self.contract.addresses:
outputs.append((TYPE_ADDRESS, a, 546))
outputs.append((TYPE_ADDRESS, self.contract.address, self.total_value))
return outputs
def create_new_contract(self, ):
yorn = self.main_window.question(
_("Do you wish to create the Sender Contract?"))
if not yorn:
return
outputs = self.build_otputs()
receiver_is_mine = self.wallet.is_mine(self.contract.addresses[0])
escrow_is_mine = self.wallet.is_mine(self.contract.addresses[2])
if receiver_is_mine and escrow_is_mine:
self.show_error(
"All three participants are in your wallet. Such contract will be impossible to terminate. Aborting."
)
return
try:
tx = self.wallet.mktx(outputs,
self.password,
self.config,
domain=self.fund_domain,
change_addr=self.fund_change_address)
except NotEnoughFunds:
return self.show_critical(
_("Not enough balance to fund smart contract."))
except Exception as e:
return self.show_critical(repr(e))
tx.version = 2
try:
self.main_window.network.broadcast_transaction2(tx)
except:
pass
self.create_button.setText("Creating Escrow Contract...")
self.create_button.setDisabled(True)
self.plugin.switch_to(Intro, self.wallet_name, None, None)
class PaymentDialog(QDialog, MessageBoxMixin):
def __init__(self, window, plugin, payment_data):
# We want to be a top-level window
QDialog.__init__(self, parent=None)
#print("PaymentDialog", "payment_data =", payment_data)
self.payment_data = payment_data
self.plugin = plugin
# WARNING: Copying some attributes so PayToEdit() will work.
self.main_window = window
self.contacts = self.main_window.contacts
self.is_max = self.main_window.is_max # Unused, as we do not use max.
self.completions = self.main_window.completions
self.count_labels = [
"Disabled",
"Once",
"Always",
]
self.display_count_labels = [
"Always",
]
run_always_index = self.count_labels.index("Always")
# NOTE: User entered data, for verification purposes (enabling save/create), and subsequent dispatch on button press.
self.value_description = ""
self.value_amount = None
self.value_payto_outputs = []
self.value_run_occurrences = self.count_labels.index("Always")
self.set_flags(0 if self.payment_data is None else self.
payment_data[PAYMENT_FLAGS])
if self.payment_data is not None:
self.value_description = self.payment_data[PAYMENT_DESCRIPTION]
self.value_amount = self.payment_data[PAYMENT_AMOUNT]
self.value_run_occurrences = self.payment_data[PAYMENT_COUNT0]
# NOTE: Set up the UI for this dialog.
self.setMinimumWidth(350)
if payment_data is None:
self.setWindowTitle(_("Create New Scheduled Payment"))
else:
self.setWindowTitle(_("Edit Existing Scheduled Payment"))
formLayout = QFormLayout()
self.setLayout(formLayout)
# Input fields.
msg = _('Description of the payment (not mandatory).') + '\n\n' + _(
'The description is not sent to the recipient of the funds. It is stored in your wallet file, and displayed in the \'History\' tab.'
)
self.description_label = HelpLabel(_('Description'), msg)
self.description_edit = MyLineEdit()
self.description_edit.setText(self.value_description)
formLayout.addRow(self.description_label, self.description_edit)
msg = _('How much to pay.') + '\n\n' + _('Unhelpful descriptive text')
self.amount_label = HelpLabel(_('Amount'), msg)
self.amount_e = BTCAmountEdit(
window.get_decimal_point
) # WARNING: This has to be named this, as PayToEdit accesses it.
self.amount_e.setAmount(self.value_amount)
# WARNING: This needs to be present before PayToEdit is constructed (as that accesses it's attribute on this object),
# but added to the layout after in order to try and reduce the "cleared amount" problem that happens when an address
# is entered (perhaps on a selected completion, i.e. of a contact).
# WARNING: This will clear the amount when an address is set, see PayToEdit.check_text.
self.payto_edit = PayToEdit(self)
msg = _('Recipient of the funds.') + '\n\n' + _(
'You may enter a Bitcoin Cash address, a label from your list of contacts (a list of completions will be proposed), or an alias (email-like address that forwards to a Bitcoin Cash address)'
)
payto_label = HelpLabel(_('Pay to'), msg)
formLayout.addRow(payto_label, self.payto_edit)
def set_payment_address(address):
self.payto_edit.payto_address = bitcoin.TYPE_ADDRESS, Address.from_string(
address)
self.value_payto_outputs = self.payto_edit.get_outputs(False)
contact_name = None
if address in window.wallet.contacts.keys():
contact_type, contact_name = window.wallet.contacts[address]
if contact_name is not None:
self.payto_edit.setText(contact_name + ' <' + address + '>')
else:
self.payto_edit.setText(address)
if payment_data is not None:
set_payment_address(payment_data[PAYMENT_ADDRESS])
completer = QCompleter()
completer.setCaseSensitivity(False)
self.payto_edit.setCompleter(completer)
completer.setModel(self.completions)
# WARNING: We created this before PayToEdit and add it to the layout after, due to the dependency issues with PayToEdit accessing `self.amount_e`.
formLayout.addRow(self.amount_label, self.amount_e)
if payment_data is not None:
text = _("No payments made.")
if payment_data[PAYMENT_DATELASTPAID] is not None:
text = datetime.datetime.fromtimestamp(
payment_data[PAYMENT_DATELASTPAID]).strftime("%c")
textLabel = QLabel(text)
label = HelpLabel(
_('Last Paid'),
_('Date last paid.') + '\n\n' +
_('The date at which this scheduled payment was last meant to send a transaction to the network, which the user acted on'
))
formLayout.addRow(label, textLabel)
count_combo = QComboBox()
count_combo.addItems(self.display_count_labels)
count_combo.setCurrentIndex(
self.display_count_labels.index(
self.count_labels[self.value_run_occurrences]))
msg = _('Repeat') + '\n\n' + _(
'The number of times the payment should be made.')
label = HelpLabel(_('Repeat'), msg)
formLayout.addRow(label, count_combo)
# The setting will be cleared if the wallet somehow becomes unencrypted, and will only be available for unencrypted wallets.
isEnabled = not self.main_window.wallet.has_password(
) and window.config.fee_per_kb() is not None
self.value_autopayment = self.value_autopayment and isEnabled
# Will show it for now, for encrypted wallets. Might be less confusing not to show it.
self.autoPaymentCheckbox = QCheckBox(
_("Make this payment automatically."))
self.autoPaymentCheckbox.setToolTip(
_("Requirements") + ":\n" +
_("1. The wallet must not have a password.") + "\n" +
_("2. There must be a default fee/kb configured for the wallet." +
"\n" +
_("If this checkbox is interactive and not disabled, these requirements are met."
)))
self.autoPaymentCheckbox.setChecked(self.value_autopayment)
self.autoPaymentCheckbox.setEnabled(isEnabled)
formLayout.addRow(_("Options"), self.autoPaymentCheckbox)
import importlib
from . import when_widget
importlib.reload(when_widget)
self.whenWidget = when_widget.WhenWidget(_("When"))
self.whenWidget.setWhen(
None if payment_data is None else payment_data[PAYMENT_WHEN])
formLayout.addRow(self.whenWidget)
# NOTE: Hook up value events and provide handlers.
def validate_input_values():
allow_commit = True
allow_commit = allow_commit and len(self.value_description) > 0
allow_commit = allow_commit and self.value_amount is not None and self.value_amount > 0
allow_commit = allow_commit and len(self.value_payto_outputs) > 0
allow_commit = allow_commit and self.value_run_occurrences == run_always_index
# allow_commit = allow_commit and self.value_run_occurrences > -1 and self.value_run_occurrences < len(count_labels)
self.save_button.setEnabled(allow_commit)
def on_run_occurrences_changed(unknown):
self.value_run_occurrences = self.count_labels.index(
self.display_count_labels[count_combo.currentIndex()])
validate_input_values()
count_combo.currentIndexChanged.connect(on_run_occurrences_changed)
def on_recipient_changed():
self.value_payto_outputs = self.payto_edit.get_outputs(False)
validate_input_values()
self.payto_edit.textChanged.connect(on_recipient_changed)
def on_amount_changed():
self.value_amount = self.amount_e.get_amount()
validate_input_values()
self.amount_e.textChanged.connect(on_amount_changed)
def on_description_changed():
self.value_description = self.description_edit.text().strip()
validate_input_values()
self.description_edit.textChanged.connect(on_description_changed)
def on_autopayment_toggled(v):
self.value_autopayment = v == Qt.Checked
self.autoPaymentCheckbox.stateChanged.connect(on_autopayment_toggled)
# Buttons at bottom right.
save_button_text = _("Save")
if payment_data is None:
save_button_text = _("Create")
self.save_button = b = QPushButton(save_button_text)
b.clicked.connect(self.save)
self.cancel_button = b = QPushButton(_("Cancel"))
b.clicked.connect(self.close)
b.setDefault(True)
self.buttons = [self.save_button, self.cancel_button]
hbox = QHBoxLayout()
#hbox.addLayout(Buttons(*self.sharing_buttons))
hbox.addStretch(1)
hbox.addLayout(Buttons(*self.buttons))
formLayout.addRow(hbox)
validate_input_values()
self.update()
def save(self):
# NOTE: This is in lieu of running some kind of updater that updates the esetimated time every second.
if self.whenWidget.updateEstimatedTime():
if not self.question(_(
"The next matching date passed between the last time you modified the date, and when you clicked on save. Do you wish to proceed anyway?"
),
title=_("Next Matching Date Changed")):
return
data_id = None
if self.payment_data is not None:
data_id = self.payment_data[PAYMENT_ID]
payment_data = [None] * PAYMENT_ENTRY_LENGTH
payment_data[PAYMENT_ID] = data_id
payment_data[PAYMENT_ADDRESS] = self.value_payto_outputs[0][
1].to_storage_string()
payment_data[PAYMENT_AMOUNT] = self.value_amount
payment_data[PAYMENT_DESCRIPTION] = self.value_description
payment_data[PAYMENT_COUNT0] = self.value_run_occurrences
payment_data[PAYMENT_WHEN] = self.whenWidget.getWhen().toText()
payment_data[PAYMENT_DATENEXTPAID] = self.whenWidget.getEstimatedTime()
payment_data[PAYMENT_FLAGS] = self.get_flags()
wallet_name = self.main_window.wallet.basename()
self.plugin.update_payment(wallet_name, payment_data)
self.close()
def closeEvent(self, event):
wallet_name = self.main_window.wallet.basename()
if self.payment_data is None:
payment_id = None
else:
payment_id = self.payment_data[PAYMENT_ID]
self.plugin.on_payment_editor_closed(wallet_name, payment_id)
event.accept()
def onTimeChanged(self, clock_current_time):
self.whenWidget.updateEstimatedTime(currentTime=clock_current_time)
def get_flags(self):
flags = 0
if self.value_autopayment:
flags |= PAYMENT_FLAG_AUTOPAY
return flags
def set_flags(self, flags):
self.value_autopayment = flags & PAYMENT_FLAG_AUTOPAY == PAYMENT_FLAG_AUTOPAY
def lock_amount(self, flag): # WARNING: Copied as needed for PayToEdit
self.amount_e.setFrozen(flag)
def do_update_fee(self): # WARNING: Copied as needed for PayToEdit
pass
def pay_to_URI(self, URI): # WARNING: Copied as needed for PayToEdit
if not URI:
return
try:
out = web.parse_URI(URI, self.on_pr)
except Exception as e:
self.show_error(_('Invalid bitcoincash URI:') + '\n' + str(e))
return
r = out.get('r')
sig = out.get('sig')
name = out.get('name')
if r or (name and sig):
self.prepare_for_payment_request()
return
address = out.get('address')
amount = out.get('amount')
label = out.get('label')
message = out.get('message')
# use label as description (not BIP21 compliant)
if label and not message:
message = label
if address:
self.payto_edit.setText(address)
if message:
self.description_edit.setText(message)
if amount:
self.amount_e.setAmount(amount)
self.amount_e.textEdited.emit("")
def prepare_for_payment_request(
self): # WARNING: Copied as needed for PayToEdit
self.payto_edit.is_pr = True
for e in [self.payto_edit, self.amount_e, self.description_edit]:
e.setFrozen(True)
self.payto_edit.setText(_("please wait..."))
return True
on_pr = None
class Create(QDialog, MessageBoxMixin):
def __init__(self, parent, plugin, wallet_name, password, manager):
QDialog.__init__(self, parent)
self.main_window = parent
self.wallet = parent.wallet
self.plugin = plugin
self.wallet_name = wallet_name
self.config = parent.config
self.password = None
self.contract = None
self.version = 1
if self.wallet.has_password():
self.main_window.show_error(
_("Plugin requires password. It will get access to your private keys."
))
self.password = parent.password_dialog()
if not self.password:
print("no password")
self.plugin.switch_to(Intro, self.wallet_name, None, None)
self.fund_domain = None
self.fund_change_address = None
self.mecenas_address = self.wallet.get_unused_address()
self.protege_address = None
self.escrow_address = None
self.addresses = []
self.total_value = 0
self.rpayment_value = 0
self.rpayment_time = 0
self.reps = 0
index = self.wallet.get_address_index(self.mecenas_address)
key = self.wallet.keystore.get_private_key(index, self.password)
self.privkey = int.from_bytes(key[0], 'big')
if isinstance(self.wallet, Multisig_Wallet):
self.main_window.show_error(
"Mecenas is designed for single signature wallet only right now"
)
vbox = QVBoxLayout()
self.setLayout(vbox)
hbox = QHBoxLayout()
vbox.addLayout(hbox)
l = QLabel("<b>%s</b>" % (_("Creatin Mecenas contract:")))
hbox.addWidget(l)
hbox.addStretch(1)
b = QPushButton(_("Home"))
b.clicked.connect(
lambda: self.plugin.switch_to(Intro, self.wallet_name, None, None))
hbox.addWidget(b)
l = QLabel(
_("Redeem address") +
": auto (this wallet)") # self.refreshing_address.to_ui_string())
vbox.addWidget(l)
l = QLabel(_("Protege address: "))
vbox.addWidget(l)
self.protege_address_wid = QLineEdit()
self.protege_address_wid.textEdited.connect(self.mecenate_info_changed)
vbox.addWidget(self.protege_address_wid)
grid = QGridLayout()
vbox.addLayout(grid)
l = QLabel(_("Recurring payment value: "))
grid.addWidget(l, 0, 0)
l = QLabel(_("Repetitions:"))
grid.addWidget(l, 0, 1)
l = QLabel(_("Period (days): "))
grid.addWidget(l, 0, 2)
self.rpayment_value_wid = BTCAmountEdit(
self.main_window.get_decimal_point)
self.rpayment_value_wid.setAmount(1000000)
self.rpayment_value_wid.textEdited.connect(self.mecenate_info_changed)
self.repetitions = QLineEdit()
self.repetitions.textEdited.connect(self.mecenate_info_changed)
grid.addWidget(self.repetitions, 1, 1)
self.rpayment_time_wid = QLineEdit()
self.rpayment_time_wid.setText("30")
self.rpayment_time_wid.textEdited.connect(self.mecenate_info_changed)
grid.addWidget(self.rpayment_value_wid, 1, 0)
grid.addWidget(self.rpayment_time_wid, 1, 2)
grid.addWidget(QLabel("Total contract value:"), 2, 0)
self.total_label = QLabel("0")
hbox = QHBoxLayout()
hbox.addWidget(self.total_label)
hbox.addStretch(1)
hbox.addWidget(QLabel("Total time:"))
#grid.addWidget(self.total_label,2,1)
grid.addLayout(hbox, 2, 1)
self.total_time_label = QLabel("0")
grid.addWidget(self.total_time_label, 2, 2)
self.advanced_wid = AdvancedWid(self)
self.advanced_wid.toggle_sig.connect(self.mecenate_info_changed)
vbox.addWidget(self.advanced_wid)
b = QPushButton(_("Create Mecenas Contract"))
b.clicked.connect(self.create_mecenat)
vbox.addStretch(1)
vbox.addWidget(b)
self.create_button = b
self.create_button.setDisabled(True)
vbox.addStretch(1)
def mecenate_info_changed(self, ):
# if any of the txid/out#/value changes
try:
self.protege_address = Address.from_string(
self.protege_address_wid.text())
self.reps = int(self.repetitions.text())
self.rpayment_time = int(
self.rpayment_time_wid.text()) * 3600 * 24 // 512
self.rpayment_value = self.rpayment_value_wid.get_amount()
total_time = int(self.rpayment_time_wid.text()) * self.reps
self.total_time_label.setText("<b>%s</b>" %
(str(total_time) + " days"))
if self.advanced_wid.option == 2:
self.version = 2
self.addresses = [self.protege_address, self.mecenas_address]
elif self.advanced_wid.option == 3:
self.version = 3
self.escrow_address = Address.from_string(
self.advanced_wid.escrow_address.text())
self.addresses = [
self.protege_address, self.mecenas_address,
self.escrow_address
]
elif self.advanced_wid.option == 1:
self.version = 1.1
self.addresses = [self.protege_address, self.mecenas_address]
elif self.advanced_wid.option == 4:
self.version = 1
self.addresses = [self.protege_address, self.mecenas_address]
self.total_value = self.reps * (self.rpayment_value +
MecenasContract.fee(self.version))
self.total_label.setText(
"<b>%s</b>" %
(self.main_window.format_amount(self.total_value) + " " +
self.main_window.base_unit()))
except Exception as e:
self.create_button.setDisabled(True)
print(e)
else:
self.create_button.setDisabled(False)
# PROTEGE is 0, MECENAS is 1
self.contract = MecenasContract(
self.addresses,
v=self.version,
data=[self.rpayment_time, self.rpayment_value])
def build_otputs(self):
outputs = []
# convention used everywhere else in this plugin is is 0 for protege and 1 for mecenas
# but I did it upside down here by mistake
outputs.append((TYPE_SCRIPT, ScriptOutput(self.contract.op_return), 0))
for a in self.addresses:
outputs.append((TYPE_ADDRESS, a, 546))
outputs.append((TYPE_ADDRESS, self.contract.address, self.total_value))
return outputs
def create_mecenat(self, ):
if self.total_value >= 2100000000:
self.show_error(
"Contract total value shouldn't be larger than 21 BCH")
return
if self.contract.version == 3:
receiver_is_mine = self.wallet.is_mine(self.contract.addresses[0])
escrow_is_mine = self.wallet.is_mine(self.contract.addresses[2])
if receiver_is_mine and escrow_is_mine:
self.show_error(
"All three participants are in your wallet. Such contract will be impossible to terminate. Aborting."
)
return
yorn = self.main_window.question(
_("Do you wish to create the Mecenas Contract?"))
if not yorn:
return
outputs = self.build_otputs()
try:
tx = self.wallet.mktx(outputs,
self.password,
self.config,
domain=self.fund_domain,
change_addr=self.fund_change_address)
except NotEnoughFunds:
return self.show_critical(
_("Not enough balance to fund smart contract."))
except Exception as e:
return self.show_critical(repr(e))
tx.version = 2
try:
self.main_window.network.broadcast_transaction2(tx)
#show_transaction(tx, self.main_window, "Create Contract", prompt_if_unsaved=True)
except:
pass
self.create_button.setText("Creating Mecenas Contract...")
self.create_button.setDisabled(True)
self.plugin.switch_to(Intro, self.wallet_name, None, None)
