You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
386 lines
13 KiB
386 lines
13 KiB
from electrum.util import print_error
|
|
from urlparse import urlparse, parse_qs
|
|
from PyQt4.QtGui import QPushButton, QMessageBox, QDialog, QVBoxLayout, QHBoxLayout, QGridLayout, QLabel, QLineEdit, QComboBox
|
|
from PyQt4.QtCore import Qt
|
|
|
|
from electrum.i18n import _
|
|
import re
|
|
import os
|
|
from electrum import Transaction
|
|
from electrum.bitcoin import MIN_RELAY_TX_FEE, is_valid
|
|
from electrum_gui.qt.qrcodewidget import QRCodeWidget
|
|
from electrum import bmp
|
|
from electrum_gui.qt import HelpButton, EnterButton
|
|
import json
|
|
|
|
try:
|
|
import zbar
|
|
except ImportError:
|
|
zbar = None
|
|
|
|
from electrum import BasePlugin
|
|
class Plugin(BasePlugin):
|
|
|
|
def fullname(self): return 'QR scans'
|
|
|
|
def description(self): return "QR Scans.\nInstall the zbar package (http://zbar.sourceforge.net/download.html) to enable this plugin"
|
|
|
|
def __init__(self, gui, name):
|
|
BasePlugin.__init__(self, gui, name)
|
|
self._is_available = self._init()
|
|
|
|
def _init(self):
|
|
if not zbar:
|
|
return False
|
|
try:
|
|
proc = zbar.Processor()
|
|
proc.init(video_device=self.video_device())
|
|
except zbar.SystemError:
|
|
# Cannot open video device
|
|
pass
|
|
#return False
|
|
|
|
return True
|
|
|
|
def load_wallet(self, wallet):
|
|
b = QPushButton(_("Scan QR code"))
|
|
b.clicked.connect(self.fill_from_qr)
|
|
self.send_tab_grid.addWidget(b, 1, 5)
|
|
b2 = QPushButton(_("Scan TxQR"))
|
|
b2.clicked.connect(self.read_raw_qr)
|
|
|
|
if not wallet.seed:
|
|
b3 = QPushButton(_("Show unsigned TxQR"))
|
|
b3.clicked.connect(self.show_raw_qr)
|
|
self.send_tab_grid.addWidget(b3, 7, 1)
|
|
self.send_tab_grid.addWidget(b2, 7, 2)
|
|
else:
|
|
self.send_tab_grid.addWidget(b2, 7, 1)
|
|
|
|
def is_available(self):
|
|
return self._is_available
|
|
|
|
def create_send_tab(self, grid):
|
|
self.send_tab_grid = grid
|
|
|
|
def scan_qr(self):
|
|
proc = zbar.Processor()
|
|
try:
|
|
proc.init(video_device=self.video_device())
|
|
except zbar.SystemError, e:
|
|
QMessageBox.warning(self.gui.main_window, _('Error'), _(e), _('OK'))
|
|
return
|
|
|
|
proc.visible = True
|
|
|
|
while True:
|
|
try:
|
|
proc.process_one()
|
|
except Exception:
|
|
# User closed the preview window
|
|
return {}
|
|
|
|
for r in proc.results:
|
|
if str(r.type) != 'QRCODE':
|
|
continue
|
|
return r.data
|
|
|
|
def show_raw_qr(self):
|
|
r = unicode( self.gui.main_window.payto_e.text() )
|
|
r = r.strip()
|
|
|
|
# label or alias, with address in brackets
|
|
m = re.match('(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>', r)
|
|
to_address = m.group(2) if m else r
|
|
|
|
if not is_valid(to_address):
|
|
QMessageBox.warning(self.gui.main_window, _('Error'), _('Invalid Bitcoin Address') + ':\n' + to_address, _('OK'))
|
|
return
|
|
|
|
try:
|
|
amount = self.gui.main_window.read_amount(unicode( self.gui.main_window.amount_e.text()))
|
|
except Exception:
|
|
QMessageBox.warning(self.gui.main_window, _('Error'), _('Invalid Amount'), _('OK'))
|
|
return
|
|
try:
|
|
fee = self.gui.main_window.read_amount(unicode( self.gui.main_window.fee_e.text()))
|
|
except Exception:
|
|
QMessageBox.warning(self.gui.main_window, _('Error'), _('Invalid Fee'), _('OK'))
|
|
return
|
|
|
|
try:
|
|
tx = self.gui.main_window.wallet.mktx( [(to_address, amount)], None, fee)
|
|
except Exception as e:
|
|
self.gui.main_window.show_message(str(e))
|
|
return
|
|
|
|
if tx.requires_fee(self.gui.main_window.wallet.verifier) and fee < MIN_RELAY_TX_FEE:
|
|
QMessageBox.warning(self.gui.main_window, _('Error'), _("This transaction requires a higher fee, or it will not be propagated by the network."), _('OK'))
|
|
return
|
|
|
|
try:
|
|
out = {
|
|
"hex" : tx.hash(),
|
|
"complete" : "false"
|
|
}
|
|
|
|
input_info = []
|
|
|
|
except Exception as e:
|
|
self.gui.main_window.show_message(str(e))
|
|
|
|
try:
|
|
json_text = json.dumps(tx.as_dict()).replace(' ', '')
|
|
self.show_tx_qrcode(json_text, 'Unsigned Transaction')
|
|
except Exception as e:
|
|
self.gui.main_window.show_message(str(e))
|
|
|
|
def show_tx_qrcode(self, data, title):
|
|
if not data: return
|
|
d = QDialog(self.gui.main_window)
|
|
d.setModal(1)
|
|
d.setWindowTitle(title)
|
|
d.setMinimumSize(250, 525)
|
|
vbox = QVBoxLayout()
|
|
qrw = QRCodeWidget(data)
|
|
vbox.addWidget(qrw, 0)
|
|
hbox = QHBoxLayout()
|
|
hbox.addStretch(1)
|
|
|
|
def print_qr(self):
|
|
filename = "qrcode.bmp"
|
|
electrum_gui.bmp.save_qrcode(qrw.qr, filename)
|
|
QMessageBox.information(None, _('Message'), _("QR code saved to file") + " " + filename, _('OK'))
|
|
|
|
b = QPushButton(_("Save"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(print_qr)
|
|
|
|
b = QPushButton(_("Close"))
|
|
hbox.addWidget(b)
|
|
b.clicked.connect(d.accept)
|
|
b.setDefault(True)
|
|
|
|
vbox.addLayout(hbox, 1)
|
|
d.setLayout(vbox)
|
|
d.exec_()
|
|
|
|
def read_raw_qr(self):
|
|
qrcode = self.scan_qr()
|
|
if qrcode:
|
|
tx = self.gui.main_window.tx_from_text(qrcode)
|
|
if tx:
|
|
self.create_transaction_details_window(tx)
|
|
|
|
def create_transaction_details_window(self, tx):
|
|
dialog = QDialog(self.gui.main_window)
|
|
dialog.setMinimumWidth(500)
|
|
dialog.setWindowTitle(_('Process Offline transaction'))
|
|
dialog.setModal(1)
|
|
|
|
l = QGridLayout()
|
|
dialog.setLayout(l)
|
|
|
|
l.addWidget(QLabel(_("Transaction status:")), 3,0)
|
|
l.addWidget(QLabel(_("Actions")), 4,0)
|
|
|
|
if tx.is_complete == False:
|
|
l.addWidget(QLabel(_("Unsigned")), 3,1)
|
|
if self.gui.main_window.wallet.seed :
|
|
b = QPushButton("Sign transaction")
|
|
b.clicked.connect(lambda: self.sign_raw_transaction(tx, tx.inputs, dialog))
|
|
l.addWidget(b, 4, 1)
|
|
else:
|
|
l.addWidget(QLabel(_("Wallet is de-seeded, can't sign.")), 4,1)
|
|
else:
|
|
l.addWidget(QLabel(_("Signed")), 3,1)
|
|
b = QPushButton("Broadcast transaction")
|
|
def broadcast(tx):
|
|
result, result_message = self.gui.main_window.wallet.sendtx( tx )
|
|
if result:
|
|
self.gui.main_window.show_message(_("Transaction successfully sent:")+' %s' % (result_message))
|
|
if dialog:
|
|
dialog.done(0)
|
|
else:
|
|
self.gui.main_window.show_message(_("There was a problem sending your transaction:") + '\n %s' % (result_message))
|
|
b.clicked.connect(lambda: broadcast( tx ))
|
|
l.addWidget(b,4,1)
|
|
|
|
closeButton = QPushButton(_("Close"))
|
|
closeButton.clicked.connect(lambda: dialog.done(0))
|
|
l.addWidget(closeButton, 4,2)
|
|
|
|
dialog.exec_()
|
|
|
|
def do_protect(self, func, args):
|
|
if self.gui.main_window.wallet.use_encryption:
|
|
password = self.gui.main_window.password_dialog()
|
|
if not password:
|
|
return
|
|
else:
|
|
password = None
|
|
|
|
if args != (False,):
|
|
args = (self,) + args + (password,)
|
|
else:
|
|
args = (self,password)
|
|
apply( func, args)
|
|
|
|
def protected(func):
|
|
return lambda s, *args: s.do_protect(func, args)
|
|
|
|
@protected
|
|
def sign_raw_transaction(self, tx, input_info, dialog ="", password = ""):
|
|
try:
|
|
self.gui.main_window.wallet.signrawtransaction(tx, input_info, [], password)
|
|
txtext = json.dumps(tx.as_dict()).replace(' ', '')
|
|
self.show_tx_qrcode(txtext, 'Signed Transaction')
|
|
except Exception as e:
|
|
self.gui.main_window.show_message(str(e))
|
|
|
|
|
|
def fill_from_qr(self):
|
|
qrcode = parse_uri(self.scan_qr())
|
|
if not qrcode:
|
|
return
|
|
|
|
if 'address' in qrcode:
|
|
self.gui.main_window.payto_e.setText(qrcode['address'])
|
|
if 'amount' in qrcode:
|
|
self.gui.main_window.amount_e.setText(str(qrcode['amount']))
|
|
if 'label' in qrcode:
|
|
self.gui.main_window.message_e.setText(qrcode['label'])
|
|
if 'message' in qrcode:
|
|
self.gui.main_window.message_e.setText("%s (%s)" % (self.gui.main_window.message_e.text(), qrcode['message']))
|
|
|
|
def video_device(self):
|
|
device = self.config.get("video_device", "default")
|
|
if device == 'default':
|
|
device = ''
|
|
return device
|
|
|
|
def requires_settings(self):
|
|
return True
|
|
|
|
def settings_widget(self, window):
|
|
return EnterButton(_('Settings'), self.settings_dialog)
|
|
|
|
def _find_system_cameras(self):
|
|
device_root = "/sys/class/video4linux"
|
|
devices = {} # Name -> device
|
|
if os.path.exists(device_root):
|
|
for device in os.listdir(device_root):
|
|
name = open(os.path.join(device_root, device, 'name')).read()
|
|
devices[name] = os.path.join("/dev",device)
|
|
return devices
|
|
|
|
def settings_dialog(self):
|
|
system_cameras = self._find_system_cameras()
|
|
|
|
d = QDialog()
|
|
layout = QGridLayout(d)
|
|
layout.addWidget(QLabel("Choose a video device:"),0,0)
|
|
|
|
# Create a combo box with the available video devices:
|
|
combo = QComboBox()
|
|
|
|
# on change trigger for video device selection, makes the
|
|
# manual device selection only appear when needed:
|
|
def on_change(x):
|
|
combo_text = str(combo.itemText(x))
|
|
combo_data = combo.itemData(x)
|
|
if combo_text == "Manually specify a device":
|
|
custom_device_label.setVisible(True)
|
|
self.video_device_edit.setVisible(True)
|
|
if self.config.get("video_device") == "default":
|
|
self.video_device_edit.setText("")
|
|
else:
|
|
self.video_device_edit.setText(self.config.get("video_device"))
|
|
else:
|
|
custom_device_label.setVisible(False)
|
|
self.video_device_edit.setVisible(False)
|
|
self.video_device_edit.setText(combo_data.toString())
|
|
|
|
# on save trigger for the video device selection window,
|
|
# stores the chosen video device on close.
|
|
def on_save():
|
|
device = str(self.video_device_edit.text())
|
|
self.config.set_key("video_device", device)
|
|
d.accept()
|
|
|
|
custom_device_label = QLabel("Video device: ")
|
|
custom_device_label.setVisible(False)
|
|
layout.addWidget(custom_device_label,1,0)
|
|
self.video_device_edit = QLineEdit()
|
|
self.video_device_edit.setVisible(False)
|
|
layout.addWidget(self.video_device_edit, 1,1,2,2)
|
|
combo.currentIndexChanged.connect(on_change)
|
|
|
|
combo.addItem("Default","default")
|
|
for camera, device in system_cameras.items():
|
|
combo.addItem(camera, device)
|
|
combo.addItem("Manually specify a device",self.config.get("video_device"))
|
|
|
|
# Populate the previously chosen device:
|
|
index = combo.findData(self.config.get("video_device"))
|
|
combo.setCurrentIndex(index)
|
|
|
|
layout.addWidget(combo,0,1)
|
|
|
|
self.accept = QPushButton(_("Done"))
|
|
self.accept.clicked.connect(on_save)
|
|
layout.addWidget(self.accept,4,2)
|
|
|
|
if d.exec_():
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
|
|
def parse_uri(uri):
|
|
if ':' not in uri:
|
|
# It's just an address (not BIP21)
|
|
return {'address': uri}
|
|
|
|
if '//' not in uri:
|
|
# Workaround for urlparse, it don't handle bitcoin: URI properly
|
|
uri = uri.replace(':', '://')
|
|
|
|
uri = urlparse(uri)
|
|
result = {'address': uri.netloc}
|
|
|
|
if uri.path.startswith('?'):
|
|
params = parse_qs(uri.path[1:])
|
|
else:
|
|
params = parse_qs(uri.path)
|
|
|
|
for k,v in params.items():
|
|
if k in ('amount', 'label', 'message'):
|
|
result[k] = v[0]
|
|
|
|
return result
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
# Run some tests
|
|
|
|
assert(parse_uri('1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
|
|
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
|
|
|
|
assert(parse_uri('bitcoin://1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
|
|
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
|
|
|
|
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
|
|
{'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
|
|
|
|
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10') ==
|
|
{'amount': '10', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
|
|
|
|
assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10&label=slush&message=Small%20tip%20to%20slush') ==
|
|
{'amount': '10', 'label': 'slush', 'message': 'Small tip to slush', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
|
|
|
|
|
|
|