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102 lines
3.9 KiB
102 lines
3.9 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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# Permission is hereby granted, free of charge, to any person |
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# obtaining a copy of this software and associated documentation files |
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# (the "Software"), to deal in the Software without restriction, |
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# including without limitation the rights to use, copy, modify, merge, |
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# publish, distribute, sublicense, and/or sell copies of the Software, |
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# and to permit persons to whom the Software is furnished to do so, |
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# subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be |
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# included in all copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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import base64 |
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import urllib |
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import sys |
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import requests |
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from PyQt5.QtWidgets import QApplication, QPushButton |
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from electrum.plugins import BasePlugin, hook |
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from electrum.i18n import _ |
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class Plugin(BasePlugin): |
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button_label = _("Verify GA instant") |
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@hook |
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def transaction_dialog(self, d): |
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d.verify_button = QPushButton(self.button_label) |
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d.verify_button.clicked.connect(lambda: self.do_verify(d)) |
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d.buttons.insert(0, d.verify_button) |
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self.transaction_dialog_update(d) |
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def get_my_addr(self, d): |
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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 d.tx.get_outputs(): |
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if d.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): |
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d.verify_button.show() |
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else: |
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d.verify_button.hide() |
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def do_verify(self, d): |
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tx = d.tx |
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wallet = d.wallet |
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window = d.parent |
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# 1. get the password and sign the verification request |
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password = None |
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if wallet.use_encryption: |
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msg = _('GreenAddress requires your signature \n' |
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'to verify that transaction is instant.\n' |
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'Please enter your password to sign a\n' |
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'verification request.') |
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password = window.password_dialog(msg, parent=d) |
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if not password: |
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return |
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try: |
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d.verify_button.setText(_('Verifying...')) |
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QApplication.processEvents() # update the button label |
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addr = self.get_my_addr(d) |
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message = "Please verify if %s is GreenAddress instant confirmed" % tx.hash() |
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sig = wallet.sign_message(addr, message, password) |
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sig = base64.b64encode(sig) |
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# 2. send the request |
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response = requests.request("GET", ("https://greenaddress.it/verify/?signature=%s&txhash=%s" % (urllib.quote(sig), tx.hash())), |
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headers = {'User-Agent': 'Electrum'}) |
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response = response.json() |
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# 3. display the result |
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if response.get('verified'): |
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d.show_message(_('%s is covered by GreenAddress instant confirmation') % (tx.hash()), title=_('Verification successful!')) |
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else: |
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d.show_critical(_('%s is not covered by GreenAddress instant confirmation') % (tx.hash()), title=_('Verification failed!')) |
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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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d.show_error(str(e)) |
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finally: |
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d.verify_button.setText(self.button_label)
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