LBRY-Vault/electrum/gui/kivy/uix/screens.py

601 lines
21 KiB
Python

import asyncio
from weakref import ref
from decimal import Decimal
import re
import threading
import traceback, sys
from kivy.app import App
from kivy.cache import Cache
from kivy.clock import Clock
from kivy.compat import string_types
from kivy.properties import (ObjectProperty, DictProperty, NumericProperty,
ListProperty, StringProperty)
from kivy.uix.recycleview import RecycleView
from kivy.uix.label import Label
from kivy.uix.behaviors import ToggleButtonBehavior
from kivy.uix.image import Image
from kivy.lang import Builder
from kivy.factory import Factory
from kivy.utils import platform
from electrum.util import profiler, parse_URI, format_time, InvalidPassword, NotEnoughFunds, Fiat
from electrum.util import PR_TYPE_ADDRESS, PR_TYPE_LN, PR_TYPE_BIP70
from electrum import bitcoin, constants
from electrum.transaction import TxOutput, Transaction, tx_from_str
from electrum.util import send_exception_to_crash_reporter, parse_URI, InvalidBitcoinURI
from electrum.util import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED, TxMinedInfo, get_request_status, pr_expiration_values
from electrum.plugin import run_hook
from electrum.wallet import InternalAddressCorruption
from electrum import simple_config
from electrum.lnaddr import lndecode
from electrum.lnutil import RECEIVED, SENT, PaymentFailure
from .dialogs.question import Question
from .dialogs.lightning_open_channel import LightningOpenChannelDialog
from electrum.gui.kivy.i18n import _
class HistoryRecycleView(RecycleView):
pass
class RequestRecycleView(RecycleView):
pass
class PaymentRecycleView(RecycleView):
pass
class CScreen(Factory.Screen):
__events__ = ('on_activate', 'on_deactivate', 'on_enter', 'on_leave')
action_view = ObjectProperty(None)
loaded = False
kvname = None
app = App.get_running_app()
def _change_action_view(self):
app = App.get_running_app()
action_bar = app.root.manager.current_screen.ids.action_bar
_action_view = self.action_view
if (not _action_view) or _action_view.parent:
return
action_bar.clear_widgets()
action_bar.add_widget(_action_view)
def on_enter(self):
# FIXME: use a proper event don't use animation time of screen
Clock.schedule_once(lambda dt: self.dispatch('on_activate'), .25)
pass
def update(self):
pass
@profiler
def load_screen(self):
self.screen = Builder.load_file('electrum/gui/kivy/uix/ui_screens/' + self.kvname + '.kv')
self.add_widget(self.screen)
self.loaded = True
self.update()
setattr(self.app, self.kvname + '_screen', self)
def on_activate(self):
if self.kvname and not self.loaded:
self.load_screen()
#Clock.schedule_once(lambda dt: self._change_action_view())
def on_leave(self):
self.dispatch('on_deactivate')
def on_deactivate(self):
pass
# note: this list needs to be kept in sync with another in qt
TX_ICONS = [
"unconfirmed",
"close",
"unconfirmed",
"close",
"clock1",
"clock2",
"clock3",
"clock4",
"clock5",
"confirmed",
]
class HistoryScreen(CScreen):
tab = ObjectProperty(None)
kvname = 'history'
cards = {}
def __init__(self, **kwargs):
self.ra_dialog = None
super(HistoryScreen, self).__init__(**kwargs)
def show_item(self, obj):
key = obj.key
tx = self.app.wallet.db.get_transaction(key)
if not tx:
return
self.app.tx_dialog(tx)
def get_card(self, tx_item): #tx_hash, tx_mined_status, value, balance):
is_lightning = tx_item.get('lightning', False)
timestamp = tx_item['timestamp']
key = tx_item.get('txid') or tx_item['payment_hash']
if is_lightning:
status = 0
txpos = tx_item['txpos']
status_str = 'unconfirmed' if timestamp is None else format_time(int(timestamp))
icon = "atlas://electrum/gui/kivy/theming/light/lightning"
message = tx_item['label']
else:
tx_hash = tx_item['txid']
conf = tx_item['confirmations']
txpos = tx_item['txpos_in_block'] or 0
height = tx_item['height']
tx_mined_info = TxMinedInfo(height=tx_item['height'],
conf=tx_item['confirmations'],
timestamp=tx_item['timestamp'])
status, status_str = self.app.wallet.get_tx_status(tx_hash, tx_mined_info)
icon = "atlas://electrum/gui/kivy/theming/light/" + TX_ICONS[status]
message = tx_item['label'] or tx_hash
ri = {}
ri['screen'] = self
ri['key'] = key
ri['icon'] = icon
ri['date'] = status_str
ri['message'] = message
value = tx_item['value'].value
if value is not None:
ri['is_mine'] = value < 0
ri['amount'] = self.app.format_amount(value, is_diff = True)
if 'fiat_value' in tx_item:
ri['quote_text'] = str(tx_item['fiat_value'])
return ri
def update(self, see_all=False):
import operator
wallet = self.app.wallet
if wallet is None:
return
history = sorted(wallet.get_full_history(self.app.fx).values(), key=lambda x: x.get('timestamp') or float('inf'), reverse=True)
history_card = self.screen.ids.history_container
history_card.data = [self.get_card(item) for item in history]
class SendScreen(CScreen):
kvname = 'send'
payment_request = None
payment_request_queued = None
def set_URI(self, text):
if not self.app.wallet:
self.payment_request_queued = text
return
try:
uri = parse_URI(text, self.app.on_pr, loop=self.app.asyncio_loop)
except InvalidBitcoinURI as e:
self.app.show_info(_("Error parsing URI") + f":\n{e}")
return
amount = uri.get('amount')
self.screen.address = uri.get('address', '')
self.screen.message = uri.get('message', '')
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
self.payment_request = None
self.screen.destinationtype = PR_TYPE_ADDRESS
def set_ln_invoice(self, invoice):
try:
lnaddr = lndecode(invoice, expected_hrp=constants.net.SEGWIT_HRP)
except Exception as e:
self.app.show_info(invoice + _(" is not a valid Lightning invoice: ") + repr(e)) # repr because str(Exception()) == ''
return
self.screen.address = invoice
self.screen.message = dict(lnaddr.tags).get('d', None)
self.screen.amount = self.app.format_amount_and_units(lnaddr.amount * bitcoin.COIN) if lnaddr.amount else ''
self.payment_request = None
self.screen.destinationtype = PR_TYPE_LN
def update(self):
if not self.loaded:
return
if self.app.wallet and self.payment_request_queued:
self.set_URI(self.payment_request_queued)
self.payment_request_queued = None
_list = self.app.wallet.get_invoices()
payments_container = self.screen.ids.payments_container
payments_container.data = [self.get_card(item) for item in _list if item['status'] != PR_PAID]
def show_item(self, obj):
self.app.show_invoice(obj.is_lightning, obj.key)
def get_card(self, item):
invoice_type = item['type']
if invoice_type == PR_TYPE_LN:
key = item['rhash']
status = get_request_status(item) # convert to str
elif invoice_type == PR_TYPE_BIP70:
key = item['id']
status = get_request_status(item) # convert to str
elif invoice_type == PR_TYPE_ADDRESS:
key = item['address']
status = get_request_status(item) # convert to str
return {
'is_lightning': invoice_type == PR_TYPE_LN,
'screen': self,
'status': status,
'key': key,
'memo': item['message'],
'amount': self.app.format_amount_and_units(item['amount'] or 0),
}
def do_clear(self):
self.screen.amount = ''
self.screen.message = ''
self.screen.address = ''
self.payment_request = None
self.screen.destinationtype = PR_TYPE_ADDRESS
def set_request(self, pr):
self.screen.address = pr.get_requestor()
amount = pr.get_amount()
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
self.screen.message = pr.get_memo()
if pr.is_pr():
self.screen.destinationtype = PR_TYPE_BIP70
self.payment_request = pr
else:
self.screen.destinationtype = PR_TYPE_ADDRESS
self.payment_request = None
def do_paste(self):
data = self.app._clipboard.paste().strip()
if not data:
self.app.show_info(_("Clipboard is empty"))
return
# try to decode as transaction
try:
raw_tx = tx_from_str(data)
tx = Transaction(raw_tx)
tx.deserialize()
except:
tx = None
if tx:
self.app.tx_dialog(tx)
return
lower = data.lower()
if lower.startswith('lightning:ln'):
lower = lower[10:]
# try to decode as URI/address
if lower.startswith('ln'):
self.set_ln_invoice(lower)
else:
self.set_URI(data)
def read_invoice(self):
address = str(self.screen.address)
if not address:
self.app.show_error(_('Recipient not specified.') + ' ' + _('Please scan a Bitcoin address or a payment request'))
return
if not self.screen.amount:
self.app.show_error(_('Please enter an amount'))
return
try:
amount = self.app.get_amount(self.screen.amount)
except:
self.app.show_error(_('Invalid amount') + ':\n' + self.screen.amount)
return
message = self.screen.message
if self.screen.destinationtype == PR_TYPE_LN:
return {
'type': PR_TYPE_LN,
'invoice': address,
'amount': amount,
'message': message,
}
elif self.screen.destinationtype == PR_TYPE_ADDRESS:
if not bitcoin.is_address(address):
self.app.show_error(_('Invalid Bitcoin Address') + ':\n' + address)
return
return {
'type': PR_TYPE_ADDRESS,
'address': address,
'amount': amount,
'message': message,
}
elif self.screen.destinationtype == PR_TYPE_BIP70:
if self.payment_request.has_expired():
self.app.show_error(_('Payment request has expired'))
return
return self.payment_request.get_dict()
else:
raise Exception('Unknown invoice type')
def do_save(self):
invoice = self.read_invoice()
if not invoice:
return
self.app.wallet.save_invoice(invoice)
self.do_clear()
self.update()
def do_pay(self):
invoice = self.read_invoice()
if not invoice:
return
self.app.wallet.save_invoice(invoice)
self.do_clear()
self.update()
self.do_pay_invoice(invoice)
def do_pay_invoice(self, invoice):
if invoice['type'] == PR_TYPE_LN:
self._do_send_lightning(invoice['invoice'], invoice['amount'])
return
elif invoice['type'] == PR_TYPE_ADDRESS:
address = invoice['address']
amount = invoice['amount']
message = invoice['message']
outputs = [TxOutput(bitcoin.TYPE_ADDRESS, address, amount)]
elif invoice['type'] == PR_TYPE_BIP70:
outputs = invoice['outputs']
amount = sum(map(lambda x:x[2], outputs))
# onchain payment
if self.app.electrum_config.get('use_rbf'):
d = Question(_('Should this transaction be replaceable?'), lambda b: self._do_send_onchain(amount, message, outputs, b))
d.open()
else:
self._do_send_onchain(amount, message, outputs, False)
def _do_send_lightning(self, invoice, amount):
attempts = 10
threading.Thread(target=self.app.wallet.lnworker.pay, args=(invoice, amount, attempts)).start()
def _do_send_onchain(self, amount, message, outputs, rbf):
# make unsigned transaction
config = self.app.electrum_config
coins = self.app.wallet.get_spendable_coins(None, config)
try:
tx = self.app.wallet.make_unsigned_transaction(coins, outputs, config, None)
except NotEnoughFunds:
self.app.show_error(_("Not enough funds"))
return
except Exception as e:
traceback.print_exc(file=sys.stdout)
self.app.show_error(repr(e))
return
if rbf:
tx.set_rbf(True)
fee = tx.get_fee()
msg = [
_("Amount to be sent") + ": " + self.app.format_amount_and_units(amount),
_("Mining fee") + ": " + self.app.format_amount_and_units(fee),
]
x_fee = run_hook('get_tx_extra_fee', self.app.wallet, tx)
if x_fee:
x_fee_address, x_fee_amount = x_fee
msg.append(_("Additional fees") + ": " + self.app.format_amount_and_units(x_fee_amount))
feerate_warning = simple_config.FEERATE_WARNING_HIGH_FEE
if fee > feerate_warning * tx.estimated_size() / 1000:
msg.append(_('Warning') + ': ' + _("The fee for this transaction seems unusually high."))
msg.append(_("Enter your PIN code to proceed"))
self.app.protected('\n'.join(msg), self.send_tx, (tx, message))
def send_tx(self, tx, message, password):
if self.app.wallet.has_password() and password is None:
return
def on_success(tx):
if tx.is_complete():
self.app.broadcast(tx, self.payment_request)
self.app.wallet.set_label(tx.txid(), message)
else:
self.app.tx_dialog(tx)
def on_failure(error):
self.app.show_error(error)
if self.app.wallet.can_sign(tx):
self.app.show_info("Signing...")
self.app.sign_tx(tx, password, on_success, on_failure)
else:
self.app.tx_dialog(tx)
class ReceiveScreen(CScreen):
kvname = 'receive'
def __init__(self, **kwargs):
super(ReceiveScreen, self).__init__(**kwargs)
Clock.schedule_interval(lambda dt: self.update(), 5)
def expiry(self):
return self.app.electrum_config.get('request_expiry', 3600) # 1 hour
def clear(self):
self.screen.address = ''
self.screen.amount = ''
self.screen.message = ''
self.screen.lnaddr = ''
def set_address(self, addr):
self.screen.address = addr
def on_address(self, addr):
req = self.app.wallet.get_request(addr)
self.screen.status = ''
if req:
self.screen.message = req.get('memo', '')
amount = req.get('amount')
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
status = req.get('status', PR_UNKNOWN)
self.screen.status = _('Payment received') if status == PR_PAID else ''
def get_URI(self):
from electrum.util import create_bip21_uri
amount = self.screen.amount
if amount:
a, u = self.screen.amount.split()
assert u == self.app.base_unit
amount = Decimal(a) * pow(10, self.app.decimal_point())
return create_bip21_uri(self.screen.address, amount, self.screen.message)
def do_copy(self):
uri = self.get_URI()
self.app._clipboard.copy(uri)
self.app.show_info(_('Request copied to clipboard'))
def new_request(self, lightning):
amount = self.screen.amount
amount = self.app.get_amount(amount) if amount else 0
message = self.screen.message
if lightning:
payment_hash = self.app.wallet.lnworker.add_invoice(amount, message, self.expiry())
request, direction, is_paid = self.app.wallet.lnworker.invoices.get(payment_hash.hex())
key = payment_hash.hex()
else:
addr = self.screen.address or self.app.wallet.get_unused_address()
if not addr:
self.app.show_info(_('No address available. Please remove some of your pending requests.'))
return
self.screen.address = addr
req = self.app.wallet.make_payment_request(addr, amount, message, self.expiry())
self.app.wallet.add_payment_request(req, self.app.electrum_config)
key = addr
self.clear()
self.update()
self.app.show_request(lightning, key)
def get_card(self, req):
is_lightning = req.get('type') == PR_TYPE_LN
if not is_lightning:
address = req['address']
key = address
else:
key = req['rhash']
address = req['invoice']
amount = req.get('amount')
description = req.get('memo', '')
ci = {}
ci['screen'] = self
ci['address'] = address
ci['is_lightning'] = is_lightning
ci['key'] = key
ci['amount'] = self.app.format_amount_and_units(amount) if amount else ''
ci['memo'] = description
ci['status'] = get_request_status(req)
ci['is_expired'] = req['status'] == PR_EXPIRED
return ci
def update(self):
if not self.loaded:
return
_list = self.app.wallet.get_sorted_requests(self.app.electrum_config)
requests_container = self.screen.ids.requests_container
requests_container.data = [self.get_card(item) for item in _list if item.get('status') != PR_PAID]
def show_item(self, obj):
self.app.show_request(obj.is_lightning, obj.key)
def expiration_dialog(self, obj):
from .dialogs.choice_dialog import ChoiceDialog
def callback(c):
self.app.electrum_config.set_key('request_expiry', c)
d = ChoiceDialog(_('Expiration date'), pr_expiration_values, self.expiry(), callback)
d.open()
def clear_requests_dialog(self):
expired = [req for req in self.app.wallet.get_sorted_requests(self.app.electrum_config) if req['status'] == PR_EXPIRED]
if len(expired) == 0:
return
def callback(c):
if c:
for req in expired:
is_lightning = req.get('lightning', False)
key = req['rhash'] if is_lightning else req['address']
self.app.wallet.delete_request(key)
self.update()
d = Question(_('Delete expired requests?'), callback)
d.open()
class TabbedCarousel(Factory.TabbedPanel):
'''Custom TabbedPanel using a carousel used in the Main Screen
'''
carousel = ObjectProperty(None)
def animate_tab_to_center(self, value):
scrlv = self._tab_strip.parent
if not scrlv:
return
idx = self.tab_list.index(value)
n = len(self.tab_list)
if idx in [0, 1]:
scroll_x = 1
elif idx in [n-1, n-2]:
scroll_x = 0
else:
scroll_x = 1. * (n - idx - 1) / (n - 1)
mation = Factory.Animation(scroll_x=scroll_x, d=.25)
mation.cancel_all(scrlv)
mation.start(scrlv)
def on_current_tab(self, instance, value):
self.animate_tab_to_center(value)
def on_index(self, instance, value):
current_slide = instance.current_slide
if not hasattr(current_slide, 'tab'):
return
tab = current_slide.tab
ct = self.current_tab
try:
if ct.text != tab.text:
carousel = self.carousel
carousel.slides[ct.slide].dispatch('on_leave')
self.switch_to(tab)
carousel.slides[tab.slide].dispatch('on_enter')
except AttributeError:
current_slide.dispatch('on_enter')
def switch_to(self, header):
# we have to replace the functionality of the original switch_to
if not header:
return
if not hasattr(header, 'slide'):
header.content = self.carousel
super(TabbedCarousel, self).switch_to(header)
try:
tab = self.tab_list[-1]
except IndexError:
return
self._current_tab = tab
tab.state = 'down'
return
carousel = self.carousel
self.current_tab.state = "normal"
header.state = 'down'
self._current_tab = header
# set the carousel to load the appropriate slide
# saved in the screen attribute of the tab head
slide = carousel.slides[header.slide]
if carousel.current_slide != slide:
carousel.current_slide.dispatch('on_leave')
carousel.load_slide(slide)
slide.dispatch('on_enter')
def add_widget(self, widget, index=0):
if isinstance(widget, Factory.CScreen):
self.carousel.add_widget(widget)
return
super(TabbedCarousel, self).add_widget(widget, index=index)