commit 7ddc29a912a2fdf6b2a307623a29c40823102c52
parent 50ba1faae4ca9570948aa1522e3221f6f6524aa6
Author: ThomasV <thomasv1@gmx.de>
Date: Mon, 27 May 2013 02:25:59 -0700
Merge pull request #227 from tigereye/master
Sending/Receiving unsigned/signed transactions via QRCode
Diffstat:
2 files changed, 181 insertions(+), 6 deletions(-)
diff --git a/gui/qrcodewidget.py b/gui/qrcodewidget.py
@@ -10,7 +10,6 @@ class QRCodeWidget(QWidget):
def __init__(self, data = None):
QWidget.__init__(self)
- self.setMinimumSize(210, 210)
self.addr = None
self.qr = None
if data:
@@ -19,13 +18,18 @@ class QRCodeWidget(QWidget):
def set_addr(self, addr):
if self.addr != addr:
- self.addr = addr
+ if len(addr) < 128:
+ MinSize = 210
+ else:
+ MinSize = 500
+ self.setMinimumSize(MinSize, MinSize)
+ self.addr = addr
self.qr = None
self.update()
def update_qr(self):
if self.addr and not self.qr:
- for size in [4,5,6]:
+ for size in range(len(pyqrnative.QRUtil.PATTERN_POSITION_TABLE)): # [4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32]:
try:
self.qr = pyqrnative.QRCode(size, pyqrnative.QRErrorCorrectLevel.L)
self.qr.addData(self.addr)
diff --git a/plugins/qrscanner.py b/plugins/qrscanner.py
@@ -1,8 +1,15 @@
from electrum.util import print_error
from urlparse import urlparse, parse_qs
-from PyQt4.QtGui import QPushButton
+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:
@@ -34,6 +41,16 @@ class Plugin(BasePlugin):
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):
@@ -51,11 +68,165 @@ class Plugin(BasePlugin):
for r in proc.results:
if str(r.type) != 'QRCODE':
continue
- return parse_uri(r.data)
+ 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 = self.scan_qr()
+ 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:
