#!/usr/bin/env python
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2012 thomasv@gitorious
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys, time, datetime, re, threading
from electrum.i18n import _, set_language
from electrum.util import print_error, print_msg
import os.path, json, ast, traceback
import shutil
import StringIO
try:
import PyQt4
except Exception:
sys.exit("Error: Could not import PyQt4 on Linux systems, you may try 'sudo apt-get install python-qt4'")
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import PyQt4.QtCore as QtCore
from electrum import transaction
from electrum.plugins import run_hook
from util import MyTreeWidget
from util import MONOSPACE_FONT
class TxDialog(QDialog):
def __init__(self, tx, parent):
self.tx = tx
tx_dict = tx.as_dict()
self.parent = parent
self.wallet = parent.wallet
QDialog.__init__(self)
self.setMinimumWidth(600)
self.setWindowTitle(_("Transaction"))
self.setModal(1)
vbox = QVBoxLayout()
self.setLayout(vbox)
vbox.addWidget(QLabel(_("Transaction ID:")))
self.tx_hash_e = QLineEdit()
self.tx_hash_e.setReadOnly(True)
vbox.addWidget(self.tx_hash_e)
self.status_label = QLabel()
vbox.addWidget(self.status_label)
self.date_label = QLabel()
vbox.addWidget(self.date_label)
self.amount_label = QLabel()
vbox.addWidget(self.amount_label)
self.fee_label = QLabel()
vbox.addWidget(self.fee_label)
self.add_io(vbox)
vbox.addStretch(1)
self.buttons = buttons = QHBoxLayout()
vbox.addLayout( buttons )
buttons.addStretch(1)
self.sign_button = b = QPushButton(_("Sign"))
b.clicked.connect(self.sign)
buttons.addWidget(b)
self.broadcast_button = b = QPushButton(_("Broadcast"))
b.clicked.connect(lambda: self.parent.broadcast_transaction(self.tx))
b.hide()
buttons.addWidget(b)
self.save_button = b = QPushButton(_("Save"))
b.clicked.connect(self.save)
buttons.addWidget(b)
cancelButton = QPushButton(_("Close"))
cancelButton.clicked.connect(lambda: self.done(0))
buttons.addWidget(cancelButton)
cancelButton.setDefault(True)
b = QPushButton()
b.setIcon(QIcon(":icons/qrcode.png"))
b.clicked.connect(self.show_qr)
buttons.insertWidget(1,b)
run_hook('transaction_dialog', self)
self.update()
def show_qr(self):
text = self.tx.raw.decode('hex')
try:
self.parent.show_qrcode(text, 'Transaction')
except Exception as e:
self.show_message(str(e))
def sign(self):
self.parent.sign_raw_transaction(self.tx)
self.update()
def save(self):
name = 'signed_%s.txn' % (self.tx.hash()[0:8]) if self.tx.is_complete() else 'unsigned.txn'
fileName = self.parent.getSaveFileName(_("Select where to save your signed transaction"), name, "*.txn")
if fileName:
with open(fileName, "w+") as f:
f.write(json.dumps(self.tx.as_dict(),indent=4) + '\n')
self.show_message(_("Transaction saved successfully"))
def update(self):
is_relevant, is_mine, v, fee = self.wallet.get_tx_value(self.tx)
if self.wallet.can_sign(self.tx):
self.sign_button.show()
else:
self.sign_button.hide()
if self.tx.is_complete():
status = _("Signed")
tx_hash = self.tx.hash()
if tx_hash in self.wallet.transactions.keys():
conf, timestamp = self.wallet.verifier.get_confirmations(tx_hash)
if timestamp:
time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
else:
time_str = 'pending'
status = _("%d confirmations")%conf
self.broadcast_button.hide()
else:
time_str = None
conf = 0
self.broadcast_button.show()
else:
s, r = self.tx.signature_count()
status = _("Unsigned") if s == 0 else _('Partially signed (%d/%d)'%(s,r))
time_str = None
self.broadcast_button.hide()
tx_hash = 'unknown'
self.tx_hash_e.setText(tx_hash)
self.status_label.setText(_('Status:') + ' ' + status)
if time_str is not None:
self.date_label.setText(_("Date: %s")%time_str)
self.date_label.show()
else:
self.date_label.hide()
# if we are not synchronized, we cannot tell
if self.parent.network is None or not self.parent.network.is_running() or not self.parent.network.is_connected():
return
if not self.wallet.up_to_date:
return
if is_relevant:
if is_mine:
if fee is not None:
self.amount_label.setText(_("Amount sent:")+' %s'% self.parent.format_amount(v-fee) + ' ' + self.parent.base_unit())
self.fee_label.setText(_("Transaction fee")+': %s'% self.parent.format_amount(fee) + ' ' + self.parent.base_unit())
else:
self.amount_label.setText(_("Amount sent:")+' %s'% self.parent.format_amount(v) + ' ' + self.parent.base_unit())
self.fee_label.setText(_("Transaction fee")+': '+ _("unknown"))
else:
self.amount_label.setText(_("Amount received:")+' %s'% self.parent.format_amount(v) + ' ' + self.parent.base_unit())
else:
self.amount_label.setText(_("Transaction unrelated to your wallet"))
run_hook('transaction_dialog_update', self)
def add_io(self, vbox):
if self.tx.locktime > 0:
vbox.addWidget(QLabel("LockTime: %d\n" % self.tx.locktime))
vbox.addWidget(QLabel(_("Inputs")))
def format_input(x):
if x.get('is_coinbase'):
return 'coinbase'
else:
_hash = x.get('prevout_hash')
return _hash[0:8] + '...' + _hash[-8:] + ":%d"%x.get('prevout_n') + u'\t' + "%s"%x.get('address')
lines = map(format_input, self.tx.inputs )
i_text = QTextEdit()
i_text.setFont(QFont(MONOSPACE_FONT))
i_text.setText('\n'.join(lines))
i_text.setReadOnly(True)
i_text.setMaximumHeight(100)
vbox.addWidget(i_text)
vbox.addWidget(QLabel(_("Outputs")))
lines = map(lambda x: x[0] + u'\t\t' + self.parent.format_amount(x[1]) if x[1] else x[0], self.tx.get_outputs())
o_text = QTextEdit()
o_text.setFont(QFont(MONOSPACE_FONT))
o_text.setText('\n'.join(lines))
o_text.setReadOnly(True)
o_text.setMaximumHeight(100)
vbox.addWidget(o_text)
def show_message(self, msg):
QMessageBox.information(self, _('Message'), msg, _('OK'))