ThomasV
10 years ago
1 changed files with 0 additions and 359 deletions
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#!/usr/bin/env python |
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# |
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# Electrum - lightweight Bitcoin client |
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# Copyright (C) 2015 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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from __future__ import absolute_import |
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import android |
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import sys |
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import os |
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import imp |
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import base64 |
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script_dir = os.path.dirname(os.path.realpath(__file__)) |
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sys.path.insert(0, os.path.join(script_dir, 'packages')) |
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import qrcode |
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imp.load_module('electrum', *imp.find_module('lib')) |
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from electrum import SimpleConfig, Wallet, WalletStorage, format_satoshis |
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from electrum import util |
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from electrum.transaction import Transaction |
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from electrum.bitcoin import base_encode, base_decode |
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def modal_dialog(title, msg = None): |
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droid.dialogCreateAlert(title,msg) |
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droid.dialogSetPositiveButtonText('OK') |
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droid.dialogShow() |
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droid.dialogGetResponse() |
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droid.dialogDismiss() |
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def modal_input(title, msg, value = None, etype=None): |
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droid.dialogCreateInput(title, msg, value, etype) |
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droid.dialogSetPositiveButtonText('OK') |
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droid.dialogSetNegativeButtonText('Cancel') |
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droid.dialogShow() |
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response = droid.dialogGetResponse() |
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result = response.result |
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droid.dialogDismiss() |
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if result is None: |
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return modal_input(title, msg, value, etype) |
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if result.get('which') == 'positive': |
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return result.get('value') |
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def modal_question(q, msg, pos_text = 'OK', neg_text = 'Cancel'): |
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droid.dialogCreateAlert(q, msg) |
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droid.dialogSetPositiveButtonText(pos_text) |
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droid.dialogSetNegativeButtonText(neg_text) |
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droid.dialogShow() |
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response = droid.dialogGetResponse() |
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result = response.result |
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droid.dialogDismiss() |
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if result is None: |
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return modal_question(q, msg, pos_text, neg_text) |
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return result.get('which') == 'positive' |
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def make_layout(s): |
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content = """ |
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<LinearLayout |
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android:id="@+id/zz" |
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android:layout_width="match_parent" |
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android:layout_height="wrap_content" |
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android:background="#ff222222"> |
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<TextView |
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android:id="@+id/textElectrum" |
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android:text="Electrum Authenticator" |
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android:textSize="7pt" |
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android:textColor="#ff4444ff" |
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android:gravity="left" |
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android:layout_height="wrap_content" |
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android:layout_width="match_parent" |
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/> |
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</LinearLayout> |
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%s """%s |
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return """<?xml version="1.0" encoding="utf-8"?> |
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" |
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android:id="@+id/background" |
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android:orientation="vertical" |
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android:layout_width="match_parent" |
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android:layout_height="match_parent" |
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android:background="#ff000022"> |
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%s |
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</LinearLayout>"""%content |
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def qr_layout(title): |
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title_view= """ |
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<TextView android:id="@+id/addrTextView" |
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android:layout_width="match_parent" |
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android:layout_height="50" |
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android:text="%s" |
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android:textAppearance="?android:attr/textAppearanceLarge" |
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android:gravity="center_vertical|center_horizontal|center"> |
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</TextView>"""%title |
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image_view=""" |
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<ImageView |
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android:id="@+id/qrView" |
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android:gravity="center" |
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android:layout_width="match_parent" |
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android:antialias="false" |
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android:src="" |
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/> |
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""" |
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return make_layout(title_view + image_view) |
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def add_menu(): |
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droid.clearOptionsMenu() |
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droid.addOptionsMenuItem("Seed", "seed", None,"") |
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droid.addOptionsMenuItem("Public Key", "xpub", None,"") |
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droid.addOptionsMenuItem("Transaction", "scan", None,"") |
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droid.addOptionsMenuItem("Password", "password", None,"") |
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def make_bitmap(data): |
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# fixme: this is highly inefficient |
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import qrcode |
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from electrum import bmp |
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qr = qrcode.QRCode() |
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qr.add_data(data) |
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bmp.save_qrcode(qr,"/sdcard/sl4a/qrcode.bmp") |
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droid = android.Android() |
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wallet = None |
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class Authenticator: |
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def __init__(self): |
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global wallet |
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self.qr_data = None |
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storage = WalletStorage('/sdcard/electrum/authenticator') |
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if not storage.file_exists: |
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action = self.restore_or_create() |
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if not action: |
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exit() |
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password = droid.dialogGetPassword('Choose a password').result |
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if password: |
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password2 = droid.dialogGetPassword('Confirm password').result |
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if password != password2: |
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modal_dialog('Error', 'Passwords do not match') |
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exit() |
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else: |
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password = None |
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if action == 'create': |
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wallet = Wallet(storage) |
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seed = wallet.make_seed() |
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modal_dialog('Your seed is:', seed) |
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elif action == 'import': |
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seed = self.seed_dialog() |
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if not seed: |
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exit() |
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if not Wallet.is_seed(seed): |
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exit() |
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wallet = Wallet.from_seed(seed, password, storage) |
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else: |
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exit() |
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wallet.add_seed(seed, password) |
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wallet.create_master_keys(password) |
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wallet.create_main_account(password) |
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else: |
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wallet = Wallet(storage) |
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def restore_or_create(self): |
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droid.dialogCreateAlert("Seed not found", "Do you want to create a new seed, or to import it?") |
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droid.dialogSetPositiveButtonText('Create') |
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droid.dialogSetNeutralButtonText('Import') |
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droid.dialogSetNegativeButtonText('Cancel') |
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droid.dialogShow() |
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response = droid.dialogGetResponse().result |
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droid.dialogDismiss() |
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if not response: return |
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if response.get('which') == 'negative': |
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return |
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return 'import' if response.get('which') == 'neutral' else 'create' |
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def seed_dialog(self): |
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if modal_question("Enter your seed", "Input method", 'QR Code', 'mnemonic'): |
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code = droid.scanBarcode() |
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r = code.result |
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if r: |
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seed = r['extras']['SCAN_RESULT'] |
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else: |
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return |
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else: |
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seed = modal_input('Mnemonic', 'Please enter your seed phrase') |
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return str(seed) |
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def show_qr(self, data): |
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path = "/sdcard/sl4a/qrcode.bmp" |
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if data: |
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droid.dialogCreateSpinnerProgress("please wait") |
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droid.dialogShow() |
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try: |
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make_bitmap(data) |
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finally: |
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droid.dialogDismiss() |
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else: |
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with open(path, 'w') as f: f.write('') |
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droid.fullSetProperty("qrView", "src", 'file://'+path) |
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self.qr_data = data |
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def show_title(self, title): |
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droid.fullSetProperty("addrTextView","text", title) |
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def get_password(self): |
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if wallet.use_encryption: |
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password = droid.dialogGetPassword('Password').result |
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try: |
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wallet.check_password(password) |
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except: |
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return False |
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return password |
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def main(self): |
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add_menu() |
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welcome = 'Use the menu to scan a transaction.' |
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droid.fullShow(qr_layout(welcome)) |
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while True: |
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event = droid.eventWait().result |
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if not event: |
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continue |
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elif event["name"] == "key": |
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if event["data"]["key"] == '4': |
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if self.qr_data: |
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self.show_qr(None) |
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self.show_title(welcome) |
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else: |
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break |
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elif event["name"] == "seed": |
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password = self.get_password() |
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if password is False: |
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modal_dialog('Error','incorrect password') |
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continue |
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seed = wallet.get_mnemonic(password) |
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modal_dialog('Your seed is', seed) |
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elif event["name"] == "password": |
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self.change_password_dialog() |
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elif event["name"] == "xpub": |
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mpk = wallet.get_master_public_key() |
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self.show_qr(mpk) |
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self.show_title('master public key') |
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droid.setClipboard(mpk) |
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droid.makeToast("Master public key copied to clipboard") |
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elif event["name"] == "scan": |
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r = droid.scanBarcode() |
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r = r.result |
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if not r: |
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continue |
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data = r['extras']['SCAN_RESULT'] |
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data = base_decode(data.encode('utf8'), None, base=43) |
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data = ''.join(chr(ord(b)) for b in data).encode('hex') |
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tx = Transaction(data) |
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#except: |
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# modal_dialog('Error', 'Cannot parse transaction') |
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# continue |
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if not wallet.can_sign(tx): |
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modal_dialog('Error', 'Cannot sign this transaction') |
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continue |
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lines = map(lambda x: x[0] + u'\t\t' + format_satoshis(x[1]) if x[1] else x[0], tx.get_outputs()) |
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if not modal_question('Sign?', '\n'.join(lines)): |
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continue |
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password = self.get_password() |
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if password is False: |
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modal_dialog('Error','incorrect password') |
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continue |
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droid.dialogCreateSpinnerProgress("Signing") |
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droid.dialogShow() |
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wallet.sign_transaction(tx, password) |
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droid.dialogDismiss() |
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data = base_encode(str(tx).decode('hex'), base=43) |
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self.show_qr(data) |
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self.show_title('Signed Transaction') |
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droid.makeToast("Bye!") |
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def change_password_dialog(self): |
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if wallet.use_encryption: |
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password = droid.dialogGetPassword('Your seed is encrypted').result |
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if password is None: |
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return |
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else: |
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password = None |
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try: |
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wallet.check_password(password) |
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except Exception: |
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modal_dialog('Error', 'Incorrect password') |
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return |
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new_password = droid.dialogGetPassword('Choose a password').result |
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if new_password == None: |
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return |
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if new_password != '': |
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password2 = droid.dialogGetPassword('Confirm new password').result |
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if new_password != password2: |
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modal_dialog('Error', 'passwords do not match') |
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return |
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wallet.update_password(password, new_password) |
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if new_password: |
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modal_dialog('Password updated', 'Your seed is encrypted') |
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else: |
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modal_dialog('No password', 'Your seed is not encrypted') |
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if __name__ == "__main__": |
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a = Authenticator() |
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a.main() |
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