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111 lines
4.0 KiB
111 lines
4.0 KiB
#!/usr/bin/env python |
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# |
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# Electrum - lightweight Bitcoin client |
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# Copyright (C) 2014 Thomas Voegtlin |
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# |
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# This program is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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import urllib |
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import httplib |
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import json |
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import sys |
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from PyQt4.QtGui import QMessageBox, QApplication, QPushButton |
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from electrum.account import BIP32_Account |
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from electrum import bitcoin, util |
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from electrum import transaction |
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from electrum.plugins import BasePlugin, hook |
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from electrum.i18n import _ |
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from electrum.bitcoin import regenerate_key |
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description = _("Allows validating if your transactions have instant confirmations by GreenAddress") |
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class Plugin(BasePlugin): |
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button_label = _("Verify GA instant") |
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def fullname(self): |
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return 'GreenAddress instant' |
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def description(self): |
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return description |
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@hook |
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def init_qt(self, gui): |
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self.win = gui.main_window |
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@hook |
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def transaction_dialog(self, d): |
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self.wallet = d.wallet |
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self.verify_button = b = QPushButton(self.button_label) |
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b.clicked.connect(lambda: self.do_verify(d.tx)) |
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d.buttons.insertWidget(2, b) |
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self.transaction_dialog_update(d) |
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def get_my_addr(self, tx): |
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"""Returns the address for given tx which can be used to request |
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instant confirmation verification from GreenAddress""" |
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for addr, _ in tx.get_outputs(): |
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if self.wallet.is_mine(addr): |
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return addr |
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return None |
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@hook |
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def transaction_dialog_update(self, d): |
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if d.tx.is_complete() and self.get_my_addr(d.tx): |
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self.verify_button.show() |
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else: |
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self.verify_button.hide() |
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def do_verify(self, tx): |
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# 1. get the password and sign the verification request |
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password = None |
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if self.wallet.use_encryption: |
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msg = _('GreenAddress requires your signature to verify that transaction is instant.\n' |
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'Please enter your password to sign a verification request.') |
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password = self.win.password_dialog(msg) |
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if not password: |
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return |
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try: |
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self.verify_button.setText(_('Verifying...')) |
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QApplication.processEvents() # update the button label |
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addr = self.get_my_addr(tx) |
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message = "Please verify if %s is GreenAddress instant confirmed" % tx.hash() |
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sig = self.wallet.sign_message(addr, message, password) |
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# 2. send the request |
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connection = httplib.HTTPSConnection('greenaddress.it') |
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connection.request("GET", ("/verify/?signature=%s&txhash=%s" % (urllib.quote(sig), tx.hash())), |
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None, {'User-Agent': 'Electrum'}) |
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response = connection.getresponse() |
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response = json.loads(response.read()) |
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# 3. display the result |
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if response.get('verified'): |
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QMessageBox.information(None, _('Verification successful!'), |
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_('%s is covered by GreenAddress instant confirmation') % (tx.hash()), _('OK')) |
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else: |
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QMessageBox.critical(None, _('Verification failed!'), |
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_('%s is not covered by GreenAddress instant confirmation') % (tx.hash()), _('OK')) |
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except BaseException as e: |
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import traceback |
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traceback.print_exc(file=sys.stdout) |
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QMessageBox.information(None, _('Error'), str(e), _('OK')) |
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finally: |
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self.verify_button.setText(self.button_label)
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