Merge User Booking API Rev 1 (Try 3)

Signed-off-by: Sawyer Bergeron <sbergeron@iol.unh.edu>
Change-Id: Ie1eee0a59929f8da39f16bb6bc17ae3de4f1cba9
Signed-off-by: Sawyer Bergeron <sbergeron@iol.unh.edu>

1 files changed, 231 insertions, 4 deletions

diff --git a/src/api/views.py b/src/api/views.py
index 2e5f33f..c0da1bc 100644
--- a/src/api/views.py
+++ b/src/api/views.py
@@ -8,9 +8,14 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
+import json
+import math
+import traceback
+import sys
+from datetime import timedelta
 
 from django.contrib.auth.decorators import login_required
-from django.shortcuts import redirect
+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
@@ -23,12 +28,15 @@ from django.core.exceptions import ObjectDoesNotExist
 from api.serializers.booking_serializer import BookingSerializer
 from api.serializers.old_serializers import UserSerializer
 from api.forms import DowntimeForm
-from account.models import UserProfile
+from account.models import UserProfile, Lab
 from booking.models import Booking
-from api.models import LabManagerTracker, get_task
+from api.models import LabManagerTracker, AutomationAPIManager, get_task, APILog
 from notifier.manager import NotificationHandler
 from analytics.models import ActiveVPNUser
-import json
+from booking.quick_deployer import create_from_API
+from resource_inventory.models import ResourceTemplate
+from django.db.models import Q
+
 
 """
 API views.
@@ -234,3 +242,222 @@ def done_jobs(request, lab_name=""):
     lab_token = request.META.get('HTTP_AUTH_TOKEN')
     lab_manager = LabManagerTracker.get(lab_name, lab_token)
     return JsonResponse(lab_manager.get_done_jobs(), safe=False)
+
+
+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
+        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
+"""
+
+
+def user_bookings(request):
+    token = auth_and_log(request, 'booking')
+
+    if isinstance(token, HttpResponse):
+        return token
+
+    bookings = Booking.objects.filter(owner=token.user, end__gte=timezone.now())
+    output = [AutomationAPIManager.serialize_booking(booking)
+              for booking in bookings]
+    return JsonResponse(output, safe=False)
+
+
+@csrf_exempt
+def specific_booking(request, booking_id=""):
+    token = auth_and_log(request, 'booking/{}'.format(booking_id))
+
+    if isinstance(token, HttpResponse):
+        return token
+
+    booking = get_object_or_404(Booking, pk=booking_id, owner=token.user)
+    if request.method == "GET":
+        sbooking = AutomationAPIManager.serialize_booking(booking)
+        return JsonResponse(sbooking, safe=False)
+
+    if request.method == "DELETE":
+
+        if booking.end < timezone.now():
+            return HttpResponse("Booking already over", status=400)
+
+        booking.end = timezone.now()
+        booking.save()
+        return HttpResponse("Booking successfully cancelled")
+
+
+@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")
+
+
+@csrf_exempt
+def make_booking(request):
+    token = auth_and_log(request, 'booking/makeBooking')
+
+    if isinstance(token, HttpResponse):
+        return token
+
+    try:
+        booking = create_from_API(request.body, token.user)
+
+    except Exception:
+        finalTrace = ''
+        exc_type, exc_value, exc_traceback = sys.exc_info()
+        for i in traceback.format_exception(exc_type, exc_value, exc_traceback):
+            finalTrace += '<br>' + i.strip()
+        return HttpResponse(finalTrace, status=400)
+
+    sbooking = AutomationAPIManager.serialize_booking(booking)
+    return JsonResponse(sbooking, safe=False)
+
+
+"""
+Resource Inventory API Views
+"""
+
+
+def available_templates(request):
+    token = auth_and_log(request, 'resource_inventory/availableTemplates')
+
+    if isinstance(token, HttpResponse):
+        return token
+
+    # get available templates
+    # mirrors MultipleSelectFilter Widget
+    avt = []
+    for lab in Lab.objects.all():
+        for template in ResourceTemplate.objects.filter(Q(owner=token.user) | Q(public=True), lab=lab, temporary=False):
+            available_resources = lab.get_available_resources()
+            required_resources = template.get_required_resources()
+            least_available = 100
+
+            for resource, count_required in required_resources.items():
+                try:
+                    curr_count = math.floor(available_resources[str(resource)] / count_required)
+                    if curr_count < least_available:
+                        least_available = curr_count
+                except KeyError:
+                    least_available = 0
+
+            if least_available > 0:
+                avt.append((template, least_available))
+
+    savt = [AutomationAPIManager.serialize_template(temp)
+            for temp in avt]
+
+    return JsonResponse(savt, safe=False)
+
+
+def images_for_template(request, template_id=""):
+    _ = auth_and_log(request, 'resource_inventory/{}/images'.format(template_id))
+
+    template = get_object_or_404(ResourceTemplate, pk=template_id)
+    images = [AutomationAPIManager.serialize_image(config.image)
+              for config in template.getConfigs()]
+    return JsonResponse(images, safe=False)
+
+
+"""
+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)