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##############################################################################
# Copyright (c) 2016 Max Breitenfeldt and others.
# Copyright (c) 2018 Parker Berberian, Sawyer Bergeron, and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import json
from datetime import timedelta
from django.contrib.auth.decorators import login_required
from django.shortcuts import redirect, get_object_or_404
from django.utils.decorators import method_decorator
from django.utils import timezone
from django.views import View
from django.http.response import JsonResponse, HttpResponse
from rest_framework.authtoken.models import Token
from django.views.decorators.csrf import csrf_exempt
from api.forms import DowntimeForm
from account.models import UserProfile, Lab
from booking.models import Booking
from api.models import LabManagerTracker,AutomationAPIManager, APILog
"""
API views.
All functions return a Json blob
Most functions that deal with info from a specific lab (tasks, host info)
requires the Lab auth token.
for example, curl -H auth-token:mylabsauthtoken url
Most functions let you GET or POST to the same endpoint, and
the correct thing will happen
"""
@method_decorator(login_required, name='dispatch')
class GenerateTokenView(View):
def get(self, request, *args, **kwargs):
user = self.request.user
token, created = Token.objects.get_or_create(user=user)
if not created:
token.delete()
Token.objects.create(user=user)
return redirect('account:settings')
def lab_status(request, lab_name=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
if request.method == "POST":
return JsonResponse(lab_manager.set_status(request.POST), safe=False)
return JsonResponse(lab_manager.get_status(), safe=False)
def lab_users(request, lab_name=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return HttpResponse(lab_manager.get_users(), content_type="text/plain")
def lab_user(request, lab_name="", user_id=-1):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return HttpResponse(lab_manager.get_user(user_id), content_type="text/plain")
def lab_profile(request, lab_name=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return JsonResponse(lab_manager.get_profile(), safe=False)
def lab_downtime(request, lab_name=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
if request.method == "GET":
return JsonResponse(lab_manager.get_downtime_json())
if request.method == "POST":
return post_lab_downtime(request, lab_manager)
if request.method == "DELETE":
return delete_lab_downtime(lab_manager)
return HttpResponse(status=405)
def post_lab_downtime(request, lab_manager):
current_downtime = lab_manager.get_downtime()
if current_downtime.exists():
return JsonResponse({"error": "Lab is already in downtime"}, status=422)
form = DowntimeForm(request.POST)
if form.is_valid():
return JsonResponse(lab_manager.create_downtime(form))
else:
return JsonResponse(form.errors.get_json_data(), status=400)
def delete_lab_downtime(lab_manager):
current_downtime = lab_manager.get_downtime()
if current_downtime.exists():
dt = current_downtime.first()
dt.end = timezone.now()
dt.save()
return JsonResponse(lab_manager.get_downtime_json(), safe=False)
else:
return JsonResponse({"error": "Lab is not in downtime"}, status=422)
def auth_and_log(request, endpoint):
"""
Function to authenticate an API user and log info
in the API log model. This is to keep record of
all calls to the dashboard
"""
user_token = request.META.get('HTTP_AUTH_TOKEN')
response = None
if user_token is None:
return HttpResponse('Unauthorized', status=401)
try:
token = Token.objects.get(key=user_token)
except Token.DoesNotExist:
token = None
if len(str(user_token)) != 40:
response = HttpResponse('Malformed Token', status=401)
else:
response = HttpResponse('Unauthorized', status=401)
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[0]
else:
ip = request.META.get('REMOTE_ADDR')
body = None
if request.method in ['POST', 'PUT']:
try:
body = json.loads(request.body.decode('utf-8')),
except Exception:
response = HttpResponse('Invalid Request Body', status=400)
APILog.objects.create(
user=token.user,
call_time=timezone.now(),
method=request.method,
endpoint=endpoint,
body=body,
ip_addr=ip
)
if response:
return response
else:
return token
"""
Booking API Views
"""
@csrf_exempt
def extend_booking(request, booking_id="", days=""):
token = auth_and_log(request, 'booking/{}/extendBooking/{}'.format(booking_id, days))
if isinstance(token, HttpResponse):
return token
booking = get_object_or_404(Booking, pk=booking_id, owner=token.user)
if booking.end < timezone.now():
return HttpResponse("This booking is already over, cannot extend")
if days > 30:
return HttpResponse("Cannot extend a booking longer than 30 days")
if booking.ext_count == 0:
return HttpResponse("Booking has already been extended 2 times, cannot extend again")
booking.end += timedelta(days=days)
booking.ext_count -= 1
booking.save()
return HttpResponse("Booking successfully extended")
"""
User API Views
"""
def all_users(request):
token = auth_and_log(request, 'users')
if token is None:
return HttpResponse('Unauthorized', status=401)
users = [AutomationAPIManager.serialize_userprofile(up)
for up in UserProfile.objects.filter(public_user=True)]
return JsonResponse(users, safe=False)
"""
Lab API Views
"""
def list_labs(request):
lab_list = []
for lab in Lab.objects.all():
lab_info = {
'name': lab.name,
'username': lab.lab_user.username,
'status': lab.status,
'project': lab.project,
'description': lab.description,
'location': lab.location,
'info': lab.lab_info_link,
'email': lab.contact_email,
'phone': lab.contact_phone
}
lab_list.append(lab_info)
return JsonResponse(lab_list, safe=False)
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