Maran
10 years ago
2 changed files with 65 additions and 287 deletions
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from electrum.util import print_error |
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import socket |
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import requests |
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import threading |
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import hashlib |
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import json |
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try: |
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import PyQt4 |
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except Exception: |
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sys.exit("Error: Could not import PyQt4 on Linux systems, you may try 'sudo apt-get install python-qt4'") |
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from PyQt4.QtGui import * |
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from PyQt4.QtCore import * |
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import PyQt4.QtCore as QtCore |
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import PyQt4.QtGui as QtGui |
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import aes |
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import base64 |
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import electrum |
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from electrum.plugins import BasePlugin, hook |
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from electrum.i18n import _ |
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from electrum_gui.qt import HelpButton, EnterButton |
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from electrum_gui.qt.util import ThreadedButton, Buttons, CancelButton, OkButton |
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class Plugin(BasePlugin): |
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target_host = 'sync.bysh.me:8080' |
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encode_password = None |
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def fullname(self): |
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return _('Electrum Sync') |
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def description(self): |
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return '%s\n\n%s' % (_("The new and improved LabelSync plugin. This can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels, transactions ids and addresses are encrypted before they are sent to the remote server."), _("The label sync's server software is open-source as well and can be found on github.com/maran/electrum-sync-server")) |
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def version(self): |
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return "0.0.1" |
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def encode(self, message): |
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encrypted = electrum.bitcoin.aes_encrypt_with_iv(self.encode_password, self.iv, message.encode('utf8')) |
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encoded_message = base64.b64encode(encrypted) |
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return encoded_message |
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def decode(self, message): |
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decoded_message = electrum.bitcoin.aes_decrypt_with_iv(self.encode_password, self.iv, base64.b64decode(message)).decode('utf8') |
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return decoded_message |
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def set_nonce(self, nonce): |
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print_error("Set nonce to", nonce) |
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self.wallet.storage.put("wallet_nonce", nonce, True) |
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self.wallet_nonce = nonce |
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@hook |
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def init_qt(self, gui): |
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self.window = gui.main_window |
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self.window.connect(self.window, SIGNAL('labels:pulled'), self.on_pulled) |
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@hook |
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def load_wallet(self, wallet): |
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self.wallet = wallet |
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self.wallet_nonce = self.wallet.storage.get("wallet_nonce") |
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print_error("Wallet nonce is", self.wallet_nonce) |
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if self.wallet_nonce is None: |
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self.set_nonce(1) |
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mpk = ''.join(sorted(self.wallet.get_master_public_keys().values())) |
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self.encode_password = hashlib.sha1(mpk).digest().encode('hex')[:32] |
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self.iv = hashlib.sha256(self.encode_password).digest()[:16] |
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self.wallet_id = hashlib.sha256(mpk).digest().encode('hex') |
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addresses = [] |
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for account in self.wallet.accounts.values(): |
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for address in account.get_addresses(0): |
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addresses.append(address) |
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self.addresses = addresses |
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# If there is an auth token we can try to actually start syncing |
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def do_pull_thread(): |
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try: |
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self.pull_thread() |
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except Exception as e: |
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print_error("could not retrieve labels:", e) |
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t = threading.Thread(target=do_pull_thread) |
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t.setDaemon(True) |
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t.start() |
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def is_available(self): |
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return True |
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def requires_settings(self): |
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return True |
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@hook |
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def set_label(self, item,label, changed): |
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if self.encode_password is None: |
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return |
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if not changed: |
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return |
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bundle = {"walletId": self.wallet_id, "walletNonce": self.wallet.storage.get("wallet_nonce"), "externalId": self.encode(item), "encryptedLabel": self.encode(label)} |
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t = threading.Thread(target=self.do_request, args=["POST", "/label", False, bundle]) |
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t.start() |
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self.set_nonce(self.wallet.storage.get("wallet_nonce") + 1) |
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def settings_widget(self, window): |
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return EnterButton(_('Settings'), self.settings_dialog) |
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def settings_dialog(self): |
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d = QDialog() |
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vbox = QVBoxLayout(d) |
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layout = QGridLayout() |
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vbox.addLayout(layout) |
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layout.addWidget(QLabel("Label sync options: "),2,0) |
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self.upload = ThreadedButton("Force upload", self.push_thread, self.done_processing) |
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layout.addWidget(self.upload, 2, 1) |
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self.download = ThreadedButton("Force download", lambda: self.pull_thread(True), self.done_processing) |
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layout.addWidget(self.download, 2, 2) |
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self.accept = OkButton(d, _("Done")) |
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vbox.addLayout(Buttons(CancelButton(d), self.accept)) |
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if d.exec_(): |
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return True |
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else: |
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return False |
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def on_pulled(self): |
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wallet = self.wallet |
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wallet.storage.put('labels', wallet.labels, True) |
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self.window.labelsChanged.emit() |
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def done_processing(self): |
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QMessageBox.information(None, _("Labels synchronised"), _("Your labels have been synchronised.")) |
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def do_request(self, method, url = "/labels", is_batch=False, data=None): |
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url = 'http://' + self.target_host + url |
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kwargs = {'headers': {}} |
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if method == 'GET' and data: |
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kwargs['params'] = data |
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elif method == 'POST' and data: |
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kwargs['data'] = json.dumps(data) |
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kwargs['headers']['Content-Type'] = 'application/json' |
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response = requests.request(method, url, **kwargs) |
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if response.status_code != 200: |
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raise BaseException(response.status_code, response.text) |
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response = response.json() |
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if "error" in response: |
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raise BaseException(response["error"]) |
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return response |
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def push_thread(self): |
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bundle = {"labels": [], "walletId": self.wallet_id, "walletNonce": self.wallet_nonce} |
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for key, value in self.wallet.labels.iteritems(): |
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try: |
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encoded_key = self.encode(key) |
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encoded_value = self.encode(value) |
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except: |
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print_error('cannot encode', repr(key), repr(value)) |
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continue |
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bundle["labels"].append({'encryptedLabel': encoded_value, 'externalId': encoded_key}) |
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self.do_request("POST", "/labels", True, bundle) |
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def pull_thread(self, force = False): |
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if force: |
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wallet_nonce = 1 |
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else: |
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wallet_nonce = self.wallet_nonce - 1 |
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print_error("Asking for labels since nonce", wallet_nonce) |
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response = self.do_request("GET", ("/labels/since/%d/for/%s" % (wallet_nonce, self.wallet_id) )) |
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result = {} |
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if not response["labels"] is None: |
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for label in response["labels"]: |
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try: |
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key = self.decode(label["externalId"]) |
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value = self.decode(label["encryptedLabel"]) |
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except: |
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continue |
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try: |
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json.dumps(key) |
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json.dumps(value) |
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except: |
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print_error('error: no json', key) |
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continue |
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result[key] = value |
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wallet = self.wallet |
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if not wallet: |
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return |
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for key, value in result.items(): |
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if force or not wallet.labels.get(key): |
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wallet.labels[key] = value |
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self.window.emit(SIGNAL('labels:pulled')) |
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self.set_nonce(response["nonce"] + 1) |
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print_error("received %d labels"%len(response)) |
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