First public release

.gitignore

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+*.pyc
+*.pyo
+*.db
+*.pot
+*.doctree
+*.swp
+.doctrees
+.DS_Store
+.coverage
+.idea/
+local_settings.py
+data/db.sqlite3
+data/*.log
+celerybeat-schedule
+celerybeat.pid
+static/*

LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2017 Purple Tech
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+GOSTCoin Web Wallet
+===================
+
+Django-powered web wallet for [GOSTCoin](http://gostco.in)
+
+
+# Celery development workers
+
+    celery -A gst_web_wallet.celery worker --loglevel=debug
+
+    celery -A gst_web_wallet.celery beat --loglevel=debug

gst_web_wallet/__init__.py

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+# import celery stuff
+from .celery import app as celery_app
+
+__all__ = ['celery_app']

gst_web_wallet/celery.py

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+from __future__ import absolute_import, unicode_literals
+import os
+from celery import Celery
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'gst_web_wallet.settings')
+app = Celery('gst_web_wallet')
+app.config_from_object('django.conf:settings', namespace='CELERY')
+# Load task modules from all registered Django app configs.
+app.autodiscover_tasks()
+
+app.conf.beat_schedule = {
+    'check-received-txs': {
+        'task': 'wallet.tasks.check_transactions_task',
+        'schedule': 120.0,
+        # 'args': (123,),
+    }
+}
+
+@app.task(bind=True)
+def debug_task(self):
+    print('Request: {0!r}'.format(self.request))

gst_web_wallet/local_settings.template

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+from gst_web_wallet.settings import *
+from decimal import Decimal
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'change this key'
+DEBUG = True
+ALLOWED_HOSTS = []
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': os.path.join(BASE_DIR, 'data', 'db.sqlite3'),
+    }
+}
+CELERY_BROKER_URL = 'redis://localhost:6379/0'
+
+# gostcoind settngs
+COIN_USER = "gostcoinrpc"
+COIN_PASSWORD = "change this key"
+COIN_ADDRESS = ("127.0.0.1", 9386)
+COIN_CONNECTION = "http://{}:{}@{}:{}".format(
+    COIN_USER, COIN_PASSWORD, COIN_ADDRESS[0], COIN_ADDRESS[1])
+
+# webapp config
+GST_NETWORK_FEE = Decimal("0.002")
+SERVICE_FEE = Decimal("0.0")
+GST_DUST = Decimal("0.0001")
+# address to receive change
+GST_CHANGE_ADDRESS = "change this to your GST address"
+
+# LOGGING = {
+#     'version': 1,
+#     'disable_existing_loggers': True,
+#     'handlers': {
+#         'file': {
+#             'level': 'INFO',
+#             'class': 'logging.FileHandler',
+#             'filename': os.path.join(BASE_DIR, 'data', 'app.log'),
+#         },
+#     },
+#     'loggers': {
+#         'django': {
+#             'handlers': ['file'],
+#             'level': 'INFO',
+#             'propagate': True,
+#         },
+#     },
+# }
+# ALLOWED_HOSTS = ['127.0.0.1', 'localhost', 'gostwallet.i2p']
+# DATABASES = {
+#     'default': {
+#         'ENGINE': 'django.db.backends.postgresql',
+#         'NAME': 'gstwallet',
+#         'USER': 'gstwallet',
+#         'PASSWORD': 'gstwallet',
+#         'HOST': '127.0.0.1',
+#         'PORT': '',
+#     }
+# }

gst_web_wallet/settings.py

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+"""
+Django settings for gst_web_wallet project.
+
+Generated by 'django-admin startproject' using Django 1.11.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/1.11/ref/settings/
+"""
+
+import os
+from django.contrib.messages import constants as message_constants
+
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Application definition
+
+INSTALLED_APPS = [
+
+    'captcha', 
+    'crispy_forms', # reusable Bootstrap forms
+
+    'wallet.apps.WalletConfig',
+
+    'integral_auth.apps.IntegralAuthConfig',
+
+    # 'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'gst_web_wallet.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'gst_web_wallet.wsgi.application'
+
+# Password validation
+# https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/1.11/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/1.11/howto/static-files/
+
+STATIC_URL = '/static/'
+
+CRISPY_TEMPLATE_PACK = 'bootstrap3'
+
+LOGIN_URL = "integral_auth:signin"
+
+# Override message tag for compatibility with bootstrap3
+MESSAGE_TAGS = {message_constants.ERROR: 'danger'}
+

gst_web_wallet/urls.py

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+"""gst_web_wallet URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.11/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import url, include
+from django.contrib import admin
+
+from wallet.views import index
+
+urlpatterns = [
+    # url(r'^admin/', admin.site.urls),
+    url(r'^captcha/', include('captcha.urls')),
+
+    url(r'^$', index, name="site_index"),
+    url(r'^auth/', include('integral_auth.urls')),
+]

gst_web_wallet/wsgi.py

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+"""
+WSGI config for gst_web_wallet project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "gst_web_wallet.settings")
+
+application = get_wsgi_application()

integral_auth/admin.py

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+from django.contrib import admin
+
+# Register your models here.

integral_auth/apps.py

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+from django.apps import AppConfig
+
+
+class IntegralAuthConfig(AppConfig):
+    name = 'integral_auth'

integral_auth/forms.py

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+from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
+from crispy_forms.helper import FormHelper
+from crispy_forms.layout import Submit
+from captcha.fields import CaptchaField
+
+class PasswordSignUpForm(UserCreationForm):
+    password1 = None
+    password2 = None
+    captcha = CaptchaField()
+
+    def __init__(self, *args, **kwargs):
+        super(PasswordSignUpForm, self).__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.add_input(Submit('submit', 'Continue'))
+
+class PasswordSignInForm(AuthenticationForm):
+    def __init__(self, *args, **kwargs):
+        super(PasswordSignInForm, self).__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.add_input(Submit('submit', 'Sign in'))
+

integral_auth/models.py

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+from django.db import models
+
+# Create your models here.

integral_auth/templates/integral_auth/base.html

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+{% extends "wallet/base.html" %}
+
+{% block content %}
+
+    <div class="row">
+        <div class="col-md-6 col-md-offset-3">
+            {% block signup_form %}{% endblock %}
+        </div>
+    </div>
+
+    <br>
+    <div class="row">
+        <div class="col-md-6 col-md-offset-3">
+
+            <div class="text-center">
+                <a href="{% url 'integral_auth:signin' %}">
+                    Sign in</a> &#8226; 
+                <a href="{% url 'integral_auth:signup' %}">
+                    Sign up</a>
+            </div>
+
+        </div>
+    </div>
+
+{% endblock %}

integral_auth/templates/integral_auth/signin.html

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+{% extends "integral_auth/base.html" %}
+
+{% block signup_form %}
+
+    <h1 class="text-center">
+        Sign in
+    </h1>
+
+    <div>
+        {% load crispy_forms_tags %}
+        {% crispy form form.helper %}
+    </div>
+
+{% endblock %}

integral_auth/templates/integral_auth/signup.html

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+{% extends "integral_auth/base.html" %}
+
+{% block signup_form %}
+
+    <h1 class="text-center">
+        Sign up
+    </h1>
+
+    <div>
+        {% load crispy_forms_tags %}
+        {% crispy form form.helper %}
+    </div>
+
+{% endblock %}

integral_auth/tests_func.py

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+from django.test import TestCase, RequestFactory, Client
+from django.urls import reverse_lazy, reverse
+from django.contrib.auth.models import User, AnonymousUser
+from django.contrib.sessions.backends.db import SessionStore
+from django.http import Http404
+from django.conf import settings
+
+import os.path
+from unittest.mock import MagicMock
+
+import integral_auth.views as views
+from integral_auth.utils import rand_string
+
+import captcha
+captcha.conf.settings.CAPTCHA_TEST_MODE = True
+
+views.conn = MagicMock()
+views.conn.getnewaddress = lambda: "G" + rand_string(33)
+
+class SignupTests(TestCase):
+
+    def setUp(self):
+        self.user = User.objects.create_user("sophia", password="qweqweqwe")
+        self.page_url = reverse_lazy("integral_auth:signup")
+        self.factory = RequestFactory()
+
+    def test_page(self):
+        request = self.factory.get(self.page_url)
+        request.user = AnonymousUser()
+        resp = views.PasswordSignUp.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+
+        request = self.factory.get(self.page_url)
+        request.user = self.user
+        resp = views.PasswordSignUp.as_view()(request)
+        self.assertEqual(resp.status_code, 302)
+
+
+    def test_invalid_signup(self):
+
+        resp = Client().post(self.page_url, {})
+        self.assertIs(resp.status_code, 200)
+        self.assertFalse(resp.context["form"].is_valid())
+
+        resp = Client().post(self.page_url, {
+            "username": "sophia",  
+            'captcha_0': 'abc', "captcha_1": "passed"})
+        self.assertFalse(resp.context["form"].is_valid())
+
+        resp = Client().post(self.page_url, {
+            "username": "test11", 
+            'captcha_0': 'abc', "captcha_1": "wrong"})
+        self.assertFalse(resp.context["form"].is_valid())
+
+
+    def test_success_signup(self):
+
+        resp = Client().post(self.page_url, {
+            "username": "testuser",  
+            'captcha_0': 'abc', "captcha_1": "passed"})
+
+        self.assertEqual(resp.status_code, 302)
+
+class SigninTests(TestCase):
+    def setUp(self):
+        self.user = User.objects.create_user("sophia", password="qweqweqwe")
+        self.page_url = reverse_lazy("integral_auth:signin")
+        self.factory = RequestFactory()
+
+    def post_request(self, data):
+        request = self.factory.post(self.page_url)
+        request.user, request.session = AnonymousUser(), SessionStore()
+        request.POST = data
+        return request
+
+    def test_page(self):
+        request = self.factory.get(self.page_url)
+        request.user, request.session = AnonymousUser(), SessionStore()
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+
+        request = self.factory.get(self.page_url)
+        request.user = self.user
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 302)
+
+    def test_signin_incorrect(self):
+        request = self.post_request({"username": "", "password": ""})
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+        self.assertTrue(request.user.is_anonymous)
+
+        request = self.post_request({"username": "hacker", "password": "qweqweqwe"})
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+        self.assertTrue(request.user.is_anonymous)
+
+        request = self.post_request({"username": "sophia", "password": ""})
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+        self.assertTrue(request.user.is_anonymous)
+
+        request = self.post_request({"username": "sophia", "password": "aiosoidsoaas"})
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 200)
+        self.assertTrue(request.user.is_anonymous)
+
+    def test_signin_success(self):
+        request = self.post_request({"username": "sophia", "password": "qweqweqwe"})
+        resp = views.PasswordSignIn.as_view()(request)
+        self.assertEqual(resp.status_code, 302)
+        self.assertEqual(request.user.username, "sophia")
+
+class SigninUrlTests(TestCase):
+
+    def setUp(self):
+        self.user = User.objects.create_user("sophia", password="qweqweqwe")
+        self.user1 = User.objects.create_user("hacker", password="qweqweqwe")
+        self.factory = RequestFactory()
+
+    def test_signin_incorrect(self):
+        creds = {"username": "sophia", "password": "qweqweqw"}
+        page_url = reverse("integral_auth:signin_url", kwargs=creds)
+        request = self.factory.get(page_url)
+        request.session, request.user = SessionStore(), AnonymousUser()
+        with self.assertRaises(Http404):
+            views.signin_url(request, **creds)
+        self.assertTrue(request.user.is_anonymous)
+        # it redirects instead of 404 if user is logged in
+        c = Client()
+        c.login(username="hacker", password="qweqweqwe")
+        resp = c.get(page_url)
+        self.assertEqual(resp.status_code, 302)
+
+    def test_signin_success(self):
+        creds = {"username": "sophia", "password": "qweqweqwe"}
+        page_url = reverse("integral_auth:signin_url", kwargs=creds)
+        request = self.factory.get(page_url)
+        request.session, request.user = SessionStore(), AnonymousUser()
+        resp = views.signin_url(request, **creds)
+        self.assertEqual(resp.status_code, 302)
+        self.assertEqual(request.user.username, "sophia")
+

integral_auth/tests_unit.py

@@ -0,0 +1,41 @@
+from django.test import TestCase
+from django.contrib.auth.models import User
+
+from integral_auth import forms
+
+import captcha
+captcha.conf.settings.CAPTCHA_TEST_MODE = True
+
+
+class PasswordSignUpFormTests(TestCase):
+
+    def setUp(self):
+        self.form = forms.PasswordSignUpForm
+        self.user = User.objects.create_user("sophia", password="qweqweqwe")
+
+    def test_signup_valid(self):
+        data = {'username': 'paul', 
+                'captcha_0':'abc', 'captcha_1': 'passed'}
+        form = self.form(data)
+        self.assertTrue(form.is_valid())
+
+    def test_signup_invalid_username(self):
+        data = {'username': 'sophia', 
+                'captcha_0':'abc', 'captcha_1': 'passed'}
+        form = self.form(data)
+        self.assertFalse(form.is_valid())
+
+    def test_signup_invalid_input(self):
+        data = {}
+        form = self.form(data)
+        self.assertFalse(form.is_valid())
+
+        data = {'username': 'sophia3'}
+        form = self.form(data)
+        self.assertFalse(form.is_valid())
+
+        data = {'username': 'sophia3', 
+                'captcha_0':'abc', 'captcha_1': 'wtf'}
+        form = self.form(data)
+        self.assertFalse(form.is_valid())
+

integral_auth/urls.py

@@ -0,0 +1,21 @@
+from django.conf.urls import url, include
+from django.urls import reverse_lazy
+
+from django.contrib.auth import views as auth_views
+from django.contrib.auth.decorators import user_passes_test
+
+from . import views
+app_name = "integral_auth"
+
+anon_only = user_passes_test(
+        lambda u: u.is_anonymous(), reverse_lazy('site_index'))
+
+urlpatterns = [
+    url(r'^$', views.PasswordSignUp.as_view(), name='signup'),
+    url(r'^signin$', views.PasswordSignIn.as_view(), name='signin'),
+    url(r'^url/(?P<username>\w{1,150})/(?P<password>\w+)$',
+        anon_only(views.signin_url), name='signin_url'),
+
+    url(r'^logout/$', auth_views.LogoutView.as_view(), name='logout'),
+]
+

integral_auth/utils.py

@@ -0,0 +1,7 @@
+import random
+import string
+
+def rand_string(length):
+    """Generate lame random hexdigest string"""
+    return "".join([random.choice(string.hexdigits) for _ in range(length)])
+

integral_auth/views.py

@@ -0,0 +1,77 @@
+from django.shortcuts import redirect
+from django.http import Http404
+from django.urls import reverse_lazy, reverse
+from django.contrib.auth.models import User
+from django.contrib.auth import authenticate, login
+from django.views.generic.edit import FormView
+from django.contrib.auth.mixins import UserPassesTestMixin
+from django.contrib import messages
+from django.db import IntegrityError
+
+from integral_auth.utils import rand_string
+
+from .forms import PasswordSignUpForm, PasswordSignInForm
+
+from wallet.models import Account, Address
+from wallet.gostcoin import GOSTCOIN_CONNECTION as conn
+
+class PasswordAuth(UserPassesTestMixin, FormView):
+    login_url = reverse_lazy("site_index")
+    def test_func(self):
+        return self.request.user.is_anonymous()
+
+class PasswordSignUp(PasswordAuth):
+    template_name = "integral_auth/signup.html"
+    form_class = PasswordSignUpForm
+
+    def form_valid(self, form):
+        addr = conn.getnewaddress()
+
+        while True:
+            try:
+                username, password = rand_string(16), rand_string(32)
+                user = User.objects.create_user(username, password=password)
+                break
+            except IntegrityError:
+                pass
+
+        name = rand_string(16)
+        account = Account.objects.create(user=user, name=name)
+        Address.objects.create(account=account, address=addr, used=False)
+
+        signin_url = self.request.build_absolute_uri(
+                reverse('integral_auth:signin_url', kwargs={
+                        "username": username, "password": password}))
+
+        messages.success(self.request, 
+                "Success! Username: {}, password: {}".format(
+                    username, password))
+        messages.success(self.request, 
+                "You can login by visiting this link: {}".format(signin_url))
+        messages.warning(self.request,
+                """Save username/password RIGHT NOW in a secure place. There is
+                NO WAY to recover them!""")
+
+        login(self.request, user)
+        return redirect("site_index")
+
+class PasswordSignIn(PasswordAuth):
+    template_name = "integral_auth/signin.html"
+    form_class = PasswordSignInForm
+
+    def form_valid(self, form):
+        user = authenticate(username=form.cleaned_data["username"], 
+                            password=form.cleaned_data["password"])
+        if user is not None and user.is_active:
+            login(self.request, user)
+            return redirect("site_index")
+
+def signin_url(request, username, password):
+    """Handle sign in by url"""
+    user = authenticate(username=username, password=password)
+    if user is not None and user.is_active:
+        login(request, user)
+    else:
+        raise Http404
+
+    return redirect("site_index")

manage.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "gst_web_wallet.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError:
+        # The above import may fail for some other reason. Ensure that the
+        # issue is really that Django is missing to avoid masking other
+        # exceptions on Python 2.
+        try:
+            import django
+        except ImportError:
+            raise ImportError(
+                "Couldn't import Django. Are you sure it's installed and "
+                "available on your PYTHONPATH environment variable? Did you "
+                "forget to activate a virtual environment?"
+            )
+        raise
+    execute_from_command_line(sys.argv)

requirements.txt

@@ -0,0 +1,7 @@
+celery
+Django==1.11
+django-crispy-forms
+django-simple-captcha
+Markdown
+redis
+python-bitcoinrpc

wallet/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

wallet/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class WalletConfig(AppConfig):
+    name = 'wallet'

wallet/forms.py

@@ -0,0 +1,58 @@
+from django import forms
+from django.core.exceptions import ValidationError
+from django.conf import settings
+
+from crispy_forms.helper import FormHelper
+from crispy_forms.layout import Submit, Layout
+
+from decimal import Decimal
+
+from .models import Account
+
+class SendCoins(forms.Form):
+    recipient = forms.RegexField(
+            regex="^[a-zA-Z0-9]{16,35}$",
+            label="Address or local account")
+    amount = forms.DecimalField(label="amount",
+            min_value=Decimal("0.01"),
+            max_value=Decimal("2000000"))
+
+        
+    def clean_recipient(self):
+        """Validate recipient"""
+        data = self.cleaned_data["recipient"]
+
+        if (len(data) == 34 or len(data) == 35) and data.startswith("G"):
+            """Valid GST address"""
+            return data
+        elif len(data) == 16:
+            """Account name"""
+            try:
+                a = Account.objects.get(name=data)
+            except Account.DoesNotExist:
+                raise ValidationError("Invalid account name", code="invalid")
+        else:
+            raise ValidationError("Incorrect recipient address/account name", 
+                    code="invalid")
+
+        return data
+
+    def clean(self):
+        """Check balance"""
+        if self.user and self.is_valid():
+            if len(self.cleaned_data["recipient"]) == 16:
+                total_amount = self.cleaned_data["amount"]
+            else:
+                total_amount = self.cleaned_data["amount"] + \
+                        settings.GST_NETWORK_FEE + settings.SERVICE_FEE
+            if self.user.account.balance < total_amount:
+                raise ValidationError("Not enough coins on balance")
+
+        return self.cleaned_data
+
+    def __init__(self, *args, **kwargs):
+        self.user = kwargs.pop('user', None)
+        super(SendCoins, self).__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.add_input(Submit('submit', 'Send'))

wallet/gostcoin.py

@@ -0,0 +1,42 @@
+from django.conf import settings 
+from bitcoinrpc.authproxy import AuthServiceProxy
+
+def select_inputs(conn, amount):
+    """Select unspent inputs to craft tx"""
+    unspent_inputs = conn.listunspent(0)
+    unspent_inputs.sort(key=lambda u: u['amount'] * u['confirmations'], 
+            reverse=True)
+
+    inputs, total = [], 0
+    for usin in unspent_inputs:
+        inputs.append(usin)
+        total += usin["amount"]
+        if total >= amount: break
+
+    if total < amount:
+        raise GostCoinException("Not enough coins on the server")
+
+    return inputs, total
+
+def create_raw_tx(conn, address, amount):
+    """Prepare raw transaction and return with output amount"""
+    # TODO calculate fee per kB
+    output_amount = amount + settings.GST_NETWORK_FEE
+    inputs, total = select_inputs(conn, output_amount)
+
+    change_amount = total - output_amount
+    outputs = {address: amount}
+    if change_amount > settings.GST_DUST:
+        outputs[settings.GST_CHANGE_ADDRESS] = change_amount
+
+    return conn.createrawtransaction(inputs, outputs)
+
+
+class GostCoinException(Exception):
+    """
+    Raised when something is wrong with account balance
+    """
+    pass
+
+
+GOSTCOIN_CONNECTION = AuthServiceProxy(settings.COIN_CONNECTION)

wallet/migrations/0001_initial.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2017-04-27 09:17
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Account',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=16, unique=True)),
+                ('balance', models.DecimalField(decimal_places=8, default=0, max_digits=15)),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Address',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('address', models.CharField(max_length=35, unique=True)),
+                ('used', models.BooleanField(default=False)),
+                ('account', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Account')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Transaction',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('txid', models.CharField(max_length=64, unique=True)),
+                ('confirmed', models.BooleanField(default=False)),
+                ('account', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Account')),
+                ('address', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Address')),
+            ],
+        ),
+    ]

wallet/migrations/0002_auto_20171021_2029.py

@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2017-10-21 20:29
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wallet', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DepositTransaction',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('txid', models.CharField(max_length=64, unique=True)),
+                ('confirmed', models.BooleanField(default=False)),
+                ('account', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Account')),
+                ('address', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Address')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='WithdrawalTransaction',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('txid', models.CharField(max_length=64, unique=True)),
+                ('confirmed', models.BooleanField(default=False)),
+                ('address', models.CharField(max_length=35)),
+                ('account', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='wallet.Account')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.RemoveField(
+            model_name='transaction',
+            name='account',
+        ),
+        migrations.RemoveField(
+            model_name='transaction',
+            name='address',
+        ),
+        migrations.DeleteModel(
+            name='Transaction',
+        ),
+    ]

wallet/migrations/0003_auto_20171021_2051.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2017-10-21 20:51
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wallet', '0002_auto_20171021_2029'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='deposittransaction',
+            name='amount',
+            field=models.DecimalField(decimal_places=8, default=0, max_digits=15),
+        ),
+        migrations.AddField(
+            model_name='withdrawaltransaction',
+            name='amount',
+            field=models.DecimalField(decimal_places=8, default=0, max_digits=15),
+        ),
+    ]

wallet/models.py

@@ -0,0 +1,38 @@
+from django.db import models, IntegrityError
+from django.contrib.auth.models import User
+from django.dispatch import receiver
+from django.db.models.signals import post_save
+
+from integral_auth.utils import rand_string
+
+import logging
+logger = logging.getLogger("django")
+
+class Account(models.Model):
+    user = models.OneToOneField(User, on_delete=models.CASCADE)
+    name = models.CharField(max_length=16, unique=True)
+    balance = models.DecimalField(default=0, decimal_places=8, max_digits=15)
+
+    def __str__(self):
+        return self.name
+
+class Address(models.Model):
+    account = models.ForeignKey(Account, on_delete=models.CASCADE)
+    address = models.CharField(max_length=35, unique=True)
+    used = models.BooleanField(default=False)
+
+class Transaction(models.Model):
+    created_at = models.DateTimeField(auto_now_add=True)
+    account = models.ForeignKey(Account, on_delete=models.CASCADE)
+    txid = models.CharField(max_length=64, unique=True)
+    confirmed = models.BooleanField(default=False)
+    amount = models.DecimalField(default=0, decimal_places=8, max_digits=15)
+
+    class Meta:
+        abstract = True
+
+class DepositTransaction(Transaction):
+    address = models.ForeignKey(Address, on_delete=models.CASCADE)
+
+class WithdrawalTransaction(Transaction):
+    address = models.CharField(max_length=35)

wallet/static/wallet/css/main.css

@@ -0,0 +1,19 @@
+p.flash-message {
+    padding: 15px;
+}
+
+.toggle-block {
+    display: none;
+}
+
+#auth-password-signup:checked + div {
+    display: block;
+}
+
+#auth-retrieve-options:checked + div {
+    display: block;
+}
+
+#content {
+    margin-bottom: 50px;
+}

wallet/static/wallet/css/normalize.css

@@ -0,0 +1,424 @@
+/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
+
+/**
+ * 1. Set default font family to sans-serif.
+ * 2. Prevent iOS and IE text size adjust after device orientation change,
+ *    without disabling user zoom.
+ */
+
+html {
+  font-family: sans-serif; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/**
+ * Remove default margin.
+ */
+
+body {
+  margin: 0;
+}
+
+/* HTML5 display definitions
+   ========================================================================== */
+
+/**
+ * Correct `block` display not defined for any HTML5 element in IE 8/9.
+ * Correct `block` display not defined for `details` or `summary` in IE 10/11
+ * and Firefox.
+ * Correct `block` display not defined for `main` in IE 11.
+ */
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+menu,
+nav,
+section,
+summary {
+  display: block;
+}
+
+/**
+ * 1. Correct `inline-block` display not defined in IE 8/9.
+ * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
+ */
+
+audio,
+canvas,
+progress,
+video {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
+}
+
+/**
+ * Prevent modern browsers from displaying `audio` without controls.
+ * Remove excess height in iOS 5 devices.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+
+/**
+ * Address `[hidden]` styling not present in IE 8/9/10.
+ * Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
+ */
+
+[hidden],
+template {
+  display: none;
+}
+
+/* Links
+   ========================================================================== */
+
+/**
+ * Remove the gray background color from active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * Improve readability of focused elements when they are also in an
+ * active/hover state.
+ */
+
+a:active,
+a:hover {
+  outline: 0;
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
+ */
+
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+
+/**
+ * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
+ */
+
+b,
+strong {
+  font-weight: bold;
+}
+
+/**
+ * Address styling not present in Safari and Chrome.
+ */
+
+dfn {
+  font-style: italic;
+}
+
+/**
+ * Address variable `h1` font-size and margin within `section` and `article`
+ * contexts in Firefox 4+, Safari, and Chrome.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/**
+ * Address styling not present in IE 8/9.
+ */
+
+mark {
+  background: #ff0;
+  color: #000;
+}
+
+/**
+ * Address inconsistent and variable font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` affecting `line-height` in all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sup {
+  top: -0.5em;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove border when inside `a` element in IE 8/9/10.
+ */
+
+img {
+  border: 0;
+}
+
+/**
+ * Correct overflow not hidden in IE 9/10/11.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Address margin not present in IE 8/9 and Safari.
+ */
+
+figure {
+  margin: 1em 40px;
+}
+
+/**
+ * Address differences between Firefox and other browsers.
+ */
+
+hr {
+  box-sizing: content-box;
+  height: 0;
+}
+
+/**
+ * Contain overflow in all browsers.
+ */
+
+pre {
+  overflow: auto;
+}
+
+/**
+ * Address odd `em`-unit font size rendering in all browsers.
+ */
+
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * Known limitation: by default, Chrome and Safari on OS X allow very limited
+ * styling of `select`, unless a `border` property is set.
+ */
+
+/**
+ * 1. Correct color not being inherited.
+ *    Known issue: affects color of disabled elements.
+ * 2. Correct font properties not being inherited.
+ * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  color: inherit; /* 1 */
+  font: inherit; /* 2 */
+  margin: 0; /* 3 */
+}
+
+/**
+ * Address `overflow` set to `hidden` in IE 8/9/10/11.
+ */
+
+button {
+  overflow: visible;
+}
+
+/**
+ * Address inconsistent `text-transform` inheritance for `button` and `select`.
+ * All other form control elements do not inherit `text-transform` values.
+ * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
+ * Correct `select` style inheritance in Firefox.
+ */
+
+button,
+select {
+  text-transform: none;
+}
+
+/**
+ * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
+ *    and `video` controls.
+ * 2. Correct inability to style clickable `input` types in iOS.
+ * 3. Improve usability and consistency of cursor style between image-type
+ *    `input` and others.
+ */
+
+button,
+html input[type="button"], /* 1 */