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.
290 lines
9.0 KiB
290 lines
9.0 KiB
from electrum.util import print_error
|
|
from urlparse import urlparse, parse_qs
|
|
from PyQt4.QtGui import QPushButton, QMessageBox, QDialog, QVBoxLayout, QHBoxLayout, QGridLayout, QLabel
|
|
from PyQt4.QtCore import Qt
|
|
from electrum_gui.i18n import _
|
|
|
|
import re
|
|
from electrum.bitcoin import MIN_RELAY_TX_FEE, Transaction, is_valid
|
|
from electrum_gui.qrcodewidget import QRCodeWidget
|
|
import electrum_gui.bmp
|
|
import json
|
|
|
|
try:
|
|
import zbar
|
|
except ImportError:
|
|
zbar = None
|
|
|
|
from electrum_gui 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()
|
|
except zbar.SystemError:
|
|
# Cannot open video device
|
|
return False
|
|
|
|
return True
|
|
|
|
def is_available(self):
|
|
return self._is_available
|
|
|
|
def create_send_tab(self, grid):
|
|
b = QPushButton(_("Scan QR code"))
|
|
b.clicked.connect(self.fill_from_qr)
|
|
grid.addWidget(b, 1, 5)
|
|
b2 = QPushButton(_("Scan TxQR"))
|
|
b2.clicked.connect(self.read_raw_qr)
|
|
|
|
if not self.gui.wallet.seed:
|
|
b3 = QPushButton(_("Show unsigned TxQR"))
|
|
b3.clicked.connect(self.show_raw_qr)
|
|
grid.addWidget(b3, 7, 1)
|
|
grid.addWidget(b2, 7, 2)
|
|
else:
|
|
grid.addWidget(b2, 7, 1)
|
|
|
|
|
|
def scan_qr(self):
|
|
proc = zbar.Processor()
|
|
proc.init()
|
|
proc.visible = True
|
|
|
|
while True:
|
|
try:
|
|
proc.process_one()
|
|
except:
|
|
# 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.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, _('Error'), _('Invalid Bitcoin Address') + ':\n' + to_address, _('OK'))
|
|
return
|
|
|
|
try:
|
|
amount = self.gui.read_amount(unicode( self.gui.amount_e.text()))
|
|
except:
|
|
QMessageBox.warning(self.gui, _('Error'), _('Invalid Amount'), _('OK'))
|
|
return
|
|
try:
|
|
fee = self.gui.read_amount(unicode( self.gui.fee_e.text()))
|
|
except:
|
|
QMessageBox.warning(self.gui, _('Error'), _('Invalid Fee'), _('OK'))
|
|
return
|
|
|
|
try:
|
|
tx = self.gui.wallet.mktx( [(to_address, amount)], None, fee, account=self.gui.current_account)
|
|
except BaseException, e:
|
|
self.gui.show_message(str(e))
|
|
return
|
|
|
|
if tx.requires_fee(self.gui.wallet.verifier) and fee < MIN_RELAY_TX_FEE:
|
|
QMessageBox.warning(self.gui, _('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 BaseException, e:
|
|
self.gui.show_message(str(e))
|
|
|
|
try:
|
|
json_text = json.dumps(tx.as_dict()).replace(' ', '')
|
|
self.show_tx_qrcode(json_text, 'Unsigned Transaction')
|
|
except BaseException, e:
|
|
self.gui.show_message(str(e))
|
|
|
|
def show_tx_qrcode(self, data, title):
|
|
if not data: return
|
|
d = QDialog(self.gui)
|
|
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_dict = self.gui.tx_dict_from_text(qrcode)
|
|
if tx_dict:
|
|
self.create_transaction_details_window(tx_dict)
|
|
|
|
|
|
def create_transaction_details_window(self, tx_dict):
|
|
tx = Transaction(tx_dict["hex"])
|
|
|
|
dialog = QDialog(self.gui)
|
|
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_dict["complete"] == False:
|
|
l.addWidget(QLabel(_("Unsigned")), 3,1)
|
|
if self.gui.wallet.seed :
|
|
b = QPushButton("Sign transaction")
|
|
input_info = json.loads(tx_dict["input_info"])
|
|
b.clicked.connect(lambda: self.sign_raw_transaction(tx, input_info, 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")
|
|
b.clicked.connect(lambda: self.gui.send_raw_transaction(tx, dialog))
|
|
l.addWidget(b,4,1)
|
|
|
|
l.addWidget( self.gui.generate_transaction_information_widget(tx), 0,0,2,3)
|
|
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.wallet.use_encryption:
|
|
password = self.gui.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.wallet.signrawtransaction(tx, input_info, [], password)
|
|
txtext = json.dumps(tx.as_dict()).replace(' ', '')
|
|
self.show_tx_qrcode(txtext, 'Signed Transaction')
|
|
except BaseException, e:
|
|
self.gui.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.payto_e.setText(qrcode['address'])
|
|
if 'amount' in qrcode:
|
|
self.gui.amount_e.setText(str(qrcode['amount']))
|
|
if 'label' in qrcode:
|
|
self.gui.message_e.setText(qrcode['label'])
|
|
if 'message' in qrcode:
|
|
self.gui.message_e.setText("%s (%s)" % (self.gui.message_e.text(), qrcode['message']))
|
|
|
|
|
|
|
|
|
|
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'})
|
|
|
|
|
|
|