/usr/lib/python2.7/dist-packages/electrum_plugins/labels.py is in python-electrum 1.9.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import httplib, urllib
import socket
import hashlib
import json
from urlparse import urlparse, parse_qs
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
import PyQt4.QtGui as QtGui
import aes
import base64
from electrum import bmp, pyqrnative
from electrum.plugins import BasePlugin
from electrum.i18n import _
from electrum_gui.qt import HelpButton, EnterButton
class Plugin(BasePlugin):
def fullname(self):
return _('Label Sync')
def description(self):
return '%s\n\n%s%s%s' % (_("This plugin can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels, transactions and addresses are all sent and stored encrypted on the remote server. This code might increase the load of your wallet with a few microseconds as it will sync labels on each startup."), _("To get started visit"), " http://labelectrum.herokuapp.com/ ", _(" to sign up for an account."))
def version(self):
return "0.2.1"
def encode(self, message):
encrypted = aes.encryptData(self.encode_password, unicode(message))
encoded_message = base64.b64encode(encrypted)
return encoded_message
def decode(self, message):
decoded_message = aes.decryptData(self.encode_password, base64.b64decode(unicode(message)) )
return decoded_message
def init(self):
self.target_host = 'labelectrum.herokuapp.com'
self.window = self.gui.main_window
def load_wallet(self, wallet):
self.wallet = wallet
if self.wallet.get_master_public_key():
mpk = self.wallet.get_master_public_key()
else:
mpk = self.wallet.master_public_keys["m/0'/"][1]
self.encode_password = hashlib.sha1(mpk).digest().encode('hex')[:32]
self.wallet_id = hashlib.sha256(mpk).digest().encode('hex')
addresses = []
for account in self.wallet.accounts.values():
for address in account.get_addresses(0):
addresses.append(address)
self.addresses = addresses
if self.auth_token():
# If there is an auth token we can try to actually start syncing
self.full_pull()
def auth_token(self):
return self.config.get("plugin_label_api_key")
def is_available(self):
return True
def requires_settings(self):
return True
def set_label(self, item,label, changed):
if not changed:
return
try:
bundle = {"label": {"external_id": self.encode(item), "text": self.encode(label)}}
params = json.dumps(bundle)
connection = httplib.HTTPConnection(self.target_host)
connection.request("POST", ("/api/wallets/%s/labels.json?auth_token=%s" % (self.wallet_id, self.auth_token())), params, {'Content-Type': 'application/json'})
response = connection.getresponse()
if response.reason == httplib.responses[httplib.NOT_FOUND]:
return
response = json.loads(response.read())
except socket.gaierror as e:
print_error('Error connecting to service: %s ' % e)
return False
def settings_widget(self, window):
return EnterButton(_('Settings'), self.settings_dialog)
def settings_dialog(self):
def check_for_api_key(api_key):
if api_key and len(api_key) > 12:
self.config.set_key("plugin_label_api_key", str(self.auth_token_edit.text()))
self.upload.setEnabled(True)
self.download.setEnabled(True)
self.accept.setEnabled(True)
else:
self.upload.setEnabled(False)
self.download.setEnabled(False)
self.accept.setEnabled(False)
d = QDialog()
layout = QGridLayout(d)
layout.addWidget(QLabel("API Key: "),0,0)
self.auth_token_edit = QLineEdit(self.auth_token())
self.auth_token_edit.textChanged.connect(check_for_api_key)
layout.addWidget(QLabel("Label sync options: "),2,0)
layout.addWidget(self.auth_token_edit, 0,1,1,2)
decrypt_key_text = QLineEdit(self.encode_password)
decrypt_key_text.setReadOnly(True)
layout.addWidget(decrypt_key_text, 1,1)
layout.addWidget(QLabel("Decryption key: "),1,0)
layout.addWidget(HelpButton("This key can be used on the LabElectrum website to decrypt your data in case you want to review it online."),1,2)
self.upload = QPushButton("Force upload")
self.upload.clicked.connect(self.full_push)
layout.addWidget(self.upload, 2,1)
self.download = QPushButton("Force download")
self.download.clicked.connect(lambda: self.full_pull(True))
layout.addWidget(self.download, 2,2)
c = QPushButton(_("Cancel"))
c.clicked.connect(d.reject)
self.accept = QPushButton(_("Done"))
self.accept.clicked.connect(d.accept)
layout.addWidget(c,3,1)
layout.addWidget(self.accept,3,2)
check_for_api_key(self.auth_token())
if d.exec_():
return True
else:
return False
def enable(self):
if not self.auth_token(): # First run, throw plugin settings in your face
self.init()
self.load_wallet(self.gui.main_window.wallet)
if self.settings_dialog():
self.set_enabled(True)
return True
else:
self.set_enabled(False)
return False
self.set_enabled(True)
return True
def full_push(self):
if self.do_full_push():
QMessageBox.information(None, _("Labels uploaded"), _("Your labels have been uploaded."))
def full_pull(self, force = False):
if self.do_full_pull(force) and force:
QMessageBox.information(None, _("Labels synchronized"), _("Your labels have been synchronized."))
self.window.update_history_tab()
self.window.update_completions()
self.window.update_receive_tab()
self.window.update_contacts_tab()
def do_full_push(self):
try:
bundle = {"labels": {}}
for key, value in self.wallet.labels.iteritems():
encoded = self.encode(key)
bundle["labels"][encoded] = self.encode(value)
params = json.dumps(bundle)
connection = httplib.HTTPConnection(self.target_host)
connection.request("POST", ("/api/wallets/%s/labels/batch.json?auth_token=%s" % (self.wallet_id, self.auth_token())), params, {'Content-Type': 'application/json'})
response = connection.getresponse()
if response.reason == httplib.responses[httplib.NOT_FOUND]:
return
try:
response = json.loads(response.read())
except ValueError as e:
return False
if "error" in response:
QMessageBox.warning(None, _("Error"),_("Could not sync labels: %s" % response["error"]))
return False
return True
except socket.gaierror as e:
print_error('Error connecting to service: %s ' % e)
return False
def do_full_pull(self, force = False):
try:
connection = httplib.HTTPConnection(self.target_host)
connection.request("GET", ("/api/wallets/%s/labels.json?auth_token=%s" % (self.wallet_id, self.auth_token())),"", {'Content-Type': 'application/json'})
response = connection.getresponse()
if response.reason == httplib.responses[httplib.NOT_FOUND]:
return
try:
response = json.loads(response.read())
except ValueError as e:
return False
if "error" in response:
QMessageBox.warning(None, _("Error"),_("Could not sync labels: %s" % response["error"]))
return False
for label in response:
decoded_key = self.decode(label["external_id"])
decoded_label = self.decode(label["text"])
if force or not self.wallet.labels.get(decoded_key):
self.wallet.labels[decoded_key] = decoded_label
return True
except socket.gaierror as e:
print_error('Error connecting to service: %s ' % e)
return False
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