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583 lines
19 KiB
Python

import base64
import hmac
from datetime import datetime, timedelta
from hashlib import sha256
from urllib.parse import parse_qsl, urlencode
import requests
from constance import config as site_config
from django.conf import settings as project_settings
from django.contrib import auth, messages
from django.contrib.admin.sites import site
from django.contrib.auth.decorators import login_required, user_passes_test
from django.contrib.auth.models import User
from django.db.models import Count
from django.db import transaction
from django.http import (HttpResponse,
HttpResponseNotFound, HttpResponseRedirect,
JsonResponse)
from django.shortcuts import redirect, render
from django.utils import timezone
from django.utils.translation import ugettext as _
from django.template.loader import render_to_string
from django_countries import countries
import django_lcore
import lcoreapi
from ccvpn.common import get_client_ip, get_price_float
from payments.models import ACTIVE_BACKENDS
from .forms import SignupForm, ReqEmailForm, WgPeerForm
from .models import GiftCode, VPNUser
from . import graphs
def get_locations():
""" Pretty bad thing that returns get_locations() with translated stuff
that depends on the request
"""
countries_d = dict(countries)
locations = django_lcore.get_clusters()
for (_), loc in locations:
code = loc['country_code'].upper()
loc['country_name'] = countries_d.get(code, code)
return locations
def log_errors(request, form):
errors = []
for field in form:
for e in field.errors:
errors.append(e)
messages.add_message(request, messages.ERROR, ", ".join(errors))
def ca_crt(request):
return HttpResponse(content=project_settings.OPENVPN_CA,
content_type='application/x-x509-ca-cert')
def logout(request):
auth.logout(request)
return redirect('index')
def signup(request):
if request.user.is_authenticated:
return redirect('account:index')
if request.method != 'POST':
form = SignupForm()
return render(request, 'ccvpn/signup.html', dict(form=form))
form = SignupForm(request.POST)
grr = request.POST.get('g-recaptcha-response', '')
if captcha_test(grr, request):
request.session['signup_captcha_pass'] = True
elif not request.session.get('signup_captcha_pass'):
messages.error(request, _("Invalid captcha. Please try again"))
return render(request, 'ccvpn/signup.html', dict(form=form))
if not form.is_valid():
return render(request, 'ccvpn/signup.html', dict(form=form))
user = User.objects.create_user(form.cleaned_data['username'],
form.cleaned_data['email'],
form.cleaned_data['password'])
user.save()
try:
user.vpnuser.referrer = User.objects.get(id=request.session.get('referrer'))
except User.DoesNotExist:
pass
user.vpnuser.campaign = request.session.get('campaign')
if site_config.TRIAL_ON_SIGNUP:
trial_time = timedelta(hours=site_config.TRIAL_ON_SIGNUP)
user.vpnuser.add_paid_time(trial_time)
user.vpnuser.save()
user.vpnuser.lcore_sync()
user.backend = 'django.contrib.auth.backends.ModelBackend'
auth.login(request, user)
# invalidate that captcha
request.session['signup_captcha_pass'] = False
return redirect('account:index')
@login_required
def discourse_login(request):
sso_secret = project_settings.DISCOURSE_SECRET
discourse_url = project_settings.DISCOURSE_URL
if project_settings.DISCOURSE_SSO is not True:
return HttpResponseNotFound()
payload = request.GET.get('sso', '')
signature = request.GET.get('sig', '')
expected_signature = hmac.new(sso_secret.encode('utf-8'),
payload.encode('utf-8'),
sha256).hexdigest()
if signature != expected_signature:
return HttpResponseNotFound()
if request.method == 'POST' and 'email' in request.POST:
form = ReqEmailForm(request.POST)
if not form.is_valid():
return render(request, 'ccvpn/require_email.html', dict(form=form))
request.user.email = form.cleaned_data['email']
request.user.save()
if not request.user.email:
form = ReqEmailForm()
return render(request, 'ccvpn/require_email.html', dict(form=form))
try:
payload = base64.b64decode(payload).decode('utf-8')
payload_data = dict(parse_qsl(payload))
except (TypeError, ValueError):
return HttpResponseNotFound()
payload_data.update({
'external_id': request.user.id,
'username': request.user.username,
'email': request.user.email,
'require_activation': 'true',
})
payload = urlencode(payload_data)
payload = base64.b64encode(payload.encode('utf-8'))
signature = hmac.new(sso_secret.encode('utf-8'), payload, sha256).hexdigest()
redirect_query = urlencode(dict(sso=payload, sig=signature))
redirect_path = '/session/sso_login?' + redirect_query
return HttpResponseRedirect(discourse_url + redirect_path)
@login_required
def index(request):
ref_url = project_settings.ROOT_URL + '?ref=' + str(request.user.id)
twitter_url = 'https://twitter.com/intent/tweet?'
twitter_args = {
'text': _("Awesome VPN! 3€ per month, with a free 7 days trial!"),
'via': 'CCrypto_VPN',
'url': ref_url,
'related': 'CCrypto_VPN,CCrypto_org'
}
class price_fn:
""" Clever hack to get the price in templates with {{price.3}} with
3 an arbitrary number of months
"""
def __getitem__(self, months):
n = int(months) * get_price_float()
c = project_settings.PAYMENTS_CURRENCY[1]
return '%.2f %s' % (n, c)
context = dict(
title=_("Account"),
ref_url=ref_url,
twitter_link=twitter_url + urlencode(twitter_args),
subscription=request.user.vpnuser.get_subscription(include_unconfirmed=True),
backends=sorted(ACTIVE_BACKENDS.values(), key=lambda x: x.backend_display_name),
subscr_backends=sorted((b for b in ACTIVE_BACKENDS.values()
if b.backend_has_recurring),
key=lambda x: x.backend_id),
default_backend='paypal',
hcaptcha_site_key=project_settings.HCAPTCHA_SITE_KEY,
price=price_fn(),
user_motd=site_config.MOTD_USER,
)
return render(request, 'lambdainst/account.html', context)
def captcha_test(grr, request):
api_url = project_settings.HCAPTCHA_API
if api_url == 'TEST' and grr == 'TEST-TOKEN':
# FIXME: i'm sorry.
return True
data = dict(secret=project_settings.HCAPTCHA_SECRET_KEY,
response=grr)
try:
r = requests.post(api_url, data=data)
r.raise_for_status()
d = r.json()
return d.get('success')
except (requests.ConnectionError, requests.HTTPError, ValueError):
return False
@login_required
def trial(request):
if request.method != 'POST' or not request.user.vpnuser.can_have_trial:
return redirect('account:index')
grr = request.POST.get('g-recaptcha-response', '')
if captcha_test(grr, request):
request.user.vpnuser.give_trial_period()
request.user.vpnuser.save()
messages.success(request, _("OK!"))
else:
messages.error(request, _("Invalid captcha"))
return redirect('account:index')
def make_export_zip(user, name):
import io
import zipfile
import json
f = io.BytesIO()
z = zipfile.ZipFile(f, mode="w")
gw_cache = {}
def process_wg_peer(item):
keys = {"gateway_port", "id", "local_ipv4", "local_ipv6", "name", "object",
"private_key", "public_key"}
return {k: v for (k, v) in item.items() if k in keys}
def process_ovpn_sess(item):
keys = {"connect_date", "disconnect_date", "remote", "object", "protocol", "id",
"stats", "tunnel"}
def convert(v):
if isinstance(v, datetime):
return v.isoformat()
return v
obj = {k: convert(v) for (k, v) in item.items() if k in keys}
gw_url = item["gateway"]["href"]
if gw_url not in gw_cache:
gw = django_lcore.api.get(gw_url)
gw_cache[gw_url] = {
"name": gw["name"],
"ipv4": gw["main_addr"]["ipv4"],
"ipv6": gw["main_addr"]["ipv6"],
}
obj["gateway"] = gw_cache[gw_url]
return obj
def process_payments(item):
obj = {
"id": item.id,
"backend": item.backend_id,
"status": item.status,
"created": item.created.isoformat(),
"confirmed": item.confirmed_on.isoformat() if item.confirmed_on else None,
"amount": item.amount / 100,
"paid_amount": item.amount / 100,
"time": item.time.total_seconds(),
"external_id": item.backend_extid,
}
if item.subscription:
obj["subscription"] = item.subscription.backend_extid
else:
obj["subscription"] = None
return obj
with z.open(name + "/account.json", "w") as jf:
jf.write(json.dumps({
"username": user.username,
"email": user.email,
"date_joined": user.date_joined.isoformat(),
"expiration": user.vpnuser.expiration.isoformat() if user.vpnuser.expiration else None,
}, indent=2).encode('ascii'))
with z.open(name + "/wireguard_peers.json", "w") as jf:
try:
keys = list(map(process_wg_peer, django_lcore.api.get_wg_peers(user.username)))
except lcoreapi.APINotFoundError:
keys = []
jf.write(json.dumps(keys, indent=2).encode('ascii'))
with z.open(name + "/openvpn_logs.json", "w") as jf:
base = django_lcore.api.info['current_instance']
next_page = '/users/' + user.username + '/sessions/'
try:
items = django_lcore.api.get(base + next_page).list_iter()
except lcoreapi.APINotFoundError:
items = []
items = list(map(process_ovpn_sess, items))
jf.write(json.dumps(items, indent=2).encode('ascii'))
with z.open(name + "/payments.json", "w") as jf:
items = user.payment_set.all()
items = list(map(process_payments, items))
jf.write(json.dumps(items, indent=2).encode('ascii'))
z.close()
return f.getvalue()
def deactivate_user(user):
""" clear most information from a user, keeping the username and id """
user.vpnuser.clear_fields()
user.vpnuser.save()
user.is_active = False
user.email = ""
user.password = ""
user.save()
user.giftcodeuser_set.all().delete()
user.payment_set.update(backend_data="null")
user.subscription_set.update(backend_data="null")
django_lcore.sync_user(user.vpnuser)
@login_required
def settings(request):
can_delete = request.user.vpnuser.get_subscription() is None
if request.method != 'POST':
return render(request, 'lambdainst/settings.html', dict(
can_delete=can_delete,
))
action = request.POST.get('action')
current_pw = request.POST.get('current_password')
if not request.user.check_password(current_pw):
messages.error(request, _("Invalid password"))
return redirect('lambdainst:account_settings')
if action == 'email':
email = request.POST.get('email')
if email:
request.user.email = email
messages.success(request, _("OK! Email address changed."))
else:
request.user.email = ''
messages.success(request, _("OK! Email address unset."))
request.user.save()
return redirect('lambdainst:account_settings')
elif action == 'password':
pw = request.POST.get('password')
pw2 = request.POST.get('password2')
if pw != pw2 or not pw:
messages.error(request, _("Password and confirmation do not match"))
else:
request.user.set_password(pw)
django_lcore.sync_user(request.user.vpnuser)
messages.success(request, _("OK! Password changed."))
request.user.save()
return redirect('lambdainst:account_settings')
elif action == 'export':
timestamp = datetime.utcnow().strftime("%Y%m%dT%H%M%SZ")
data = make_export_zip(request.user, timestamp)
r = HttpResponse(content=data, content_type="application/zip")
r["Content-Disposition"] = 'attachment; filename="ccvpn-export-{}-{}.zip"'.format(request.user.username, timestamp)
return r
elif action == 'delete' and can_delete:
with transaction.atomic():
deactivate_user(request.user)
logout(request)
messages.success(request, _("OK! Your account has been deactivated."))
return redirect('/')
return render(request, 'lambdainst/settings.html', dict(
title=_("Settings"),
user=request.user,
can_delete=can_delete,
))
@login_required
def gift_code(request):
try:
code = GiftCode.objects.get(code=request.POST.get('code', '').strip(), available=True)
except GiftCode.DoesNotExist:
code = None
if code is None:
messages.error(request, _("Gift code not found or already used."))
elif not code.use_on(request.user):
messages.error(request, _("Gift code only available to free accounts."))
else:
messages.success(request, _("OK!"))
return redirect('account:index')
@login_required
def config(request):
return render(request, 'lambdainst/config.html', dict(
title=_("Config"),
config_os=django_lcore.openvpn.CONFIG_OS,
config_countries=(c for _, c in get_locations()),
config_protocols=django_lcore.openvpn.PROTOCOLS,
))
def api_locations(request):
def format_loc(cc, l):
msg = ""
tags = l.get('tags', {})
message = tags.get('message')
if message:
msg = " [%s]" % message
return {
'country_name': l['country_name'] + msg,
'country_code': cc,
'hostname': l['hostname'],
'bandwidth': l['bandwidth'],
'servers': l['servers'],
}
return JsonResponse(dict(locations=[format_loc(cc, l) for cc, l in get_locations()]))
def status(request):
locations = get_locations()
ctx = {
'title': _("Status"),
'n_users': VPNUser.objects.filter(expiration__gte=timezone.now()).count(),
'n_sess': django_lcore.count_active_sessions(),
'n_gws': sum(len(l['servers']) for cc, l in locations),
'n_countries': len(set(cc for cc, l in locations)),
'total_bw': sum(l['bandwidth'] for cc, l in locations),
'locations': locations,
}
return render(request, 'lambdainst/status.html', ctx)
@user_passes_test(lambda user: user.is_staff)
def admin_status(request):
graph_name = request.GET.get('graph_name')
graph_period = request.GET.get('period')
if graph_period not in ('y', 'm'):
graph_period = 'm'
if graph_name:
if graph_name == 'users':
content = graphs.users_graph(graph_period)
elif graph_name == 'payments_paid':
content = graphs.payments_paid_graph(graph_period)
elif graph_name == 'payments_success':
content = graphs.payments_success_graph(graph_period)
else:
return HttpResponseNotFound()
return HttpResponse(content=content, content_type='image/svg+xml')
payment_status = ((b, b.get_info()) for b in ACTIVE_BACKENDS.values())
payment_status = ((b, i) for (b, i) in payment_status if i)
lcore_keys = {'core_name', 'core_now', 'core_version', 'current_instance', 'key_public'}
ctx = {
'api_status': {k: str(v) for k, v in django_lcore.api.info.items() if k in lcore_keys},
'payment_backends': sorted(ACTIVE_BACKENDS.values(), key=lambda x: x.backend_id),
'payment_status': payment_status,
}
ctx.update(site.each_context(request))
return render(request, 'lambdainst/admin_status.html', ctx)
@user_passes_test(lambda user: user.is_staff)
def admin_ref(request):
last_week = datetime.now() - timedelta(days=7)
last_month = datetime.now() - timedelta(days=30)
top_ref = User.objects.annotate(n_ref=Count('referrals')).order_by('-n_ref')[:10]
top_ref_week = User.objects.filter(referrals__user__date_joined__gt=last_week) \
.annotate(n_ref=Count('referrals')) \
.order_by('-n_ref')[:10]
top_ref_month = User.objects.filter(referrals__user__date_joined__gt=last_month) \
.annotate(n_ref=Count('referrals')) \
.order_by('-n_ref')[:10]
ctx = {
'top_ref': top_ref,
'top_ref_week': top_ref_week,
'top_ref_month': top_ref_month,
}
ctx.update(site.each_context(request))
return render(request, 'lambdainst/admin_ref.html', ctx)
@login_required
def wireguard(request):
api = django_lcore.api
if request.method == 'POST':
action = request.POST.get('action')
if action == 'delete_key':
key = api.get_wg_peer(request.user.username, request.POST.get('peer_id'))
if key:
key.delete()
elif action == 'set_name':
key = api.get_wg_peer(request.user.username, request.POST.get('peer_id'))
if key:
name = request.POST.get('name')
if name:
name = name[:21]
key.rename(name)
return redirect(request.path)
try:
keys = api.get_wg_peers(request.user.username)
except lcoreapi.APINotFoundError:
django_lcore.sync_user(request.user.vpnuser)
keys = []
context = dict(
can_create_key=len(keys) < int(site_config.WIREGUARD_MAX_PEERS),
menu_item='wireguard',
enabled=request.user.vpnuser.is_paid,
config_countries=[(k, v) for (k, v) in django_lcore.get_clusters()],
keys=keys,
locations=get_locations(),
)
return render(request, 'lambdainst/wireguard.html', context)
@login_required
def wireguard_new(request):
if not request.user.vpnuser.is_paid:
return redirect('account:index')
try:
keys = django_lcore.api.get_wg_peers(request.user.username)
except lcoreapi.APINotFoundError:
django_lcore.sync_user(request.user.vpnuser)
keys = []
if len(keys) >= int(site_config.WIREGUARD_MAX_PEERS):
return redirect('/account/wireguard')
api = django_lcore.api
if request.method == 'POST':
action = request.POST.get('action')
form = WgPeerForm(request.POST)
if action == 'add_key':
if form.is_valid():
api.create_wg_peer(
request.user.username,
public_key=form.cleaned_data['public_key'],
name=form.cleaned_data['name'],
)
else:
log_errors(request, form)
return redirect('/account/wireguard')
context = dict(
menu_item='wireguard',
locations=get_locations(),
)
return render(request, 'lambdainst/wireguard_new.html', context)