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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
import math
import traceback
import sys
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 import HttpResponseNotFound
from django.http.response import JsonResponse, HttpResponse
from rest_framework import viewsets
from rest_framework.authtoken.models import Token
from django.views.decorators.csrf import csrf_exempt
from django.core.exceptions import ObjectDoesNotExist
from django.db.models import Q
from api.serializers.booking_serializer import BookingSerializer
from api.serializers.old_serializers import UserSerializer
from api.forms import DowntimeForm
from account.models import UserProfile, Lab
from booking.models import Booking
from booking.quick_deployer import create_from_API
from api.models import LabManagerTracker, get_task, Job, AutomationAPIManager, APILog, GeneratedCloudConfig
from notifier.manager import NotificationHandler
from analytics.models import ActiveVPNUser
from resource_inventory.models import (
Image,
Opsys,
CloudInitFile,
ResourceQuery,
ResourceTemplate,
)
import yaml
import uuid
from deepmerge import Merger
"""
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
"""
class BookingViewSet(viewsets.ModelViewSet):
queryset = Booking.objects.all()
serializer_class = BookingSerializer
filter_fields = ('resource', 'id')
class UserViewSet(viewsets.ModelViewSet):
queryset = UserProfile.objects.all()
serializer_class = UserSerializer
@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_inventory(request, lab_name=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return JsonResponse(lab_manager.get_inventory(), safe=False)
@csrf_exempt
def lab_host(request, lab_name="", host_id=""):
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_host(host_id), safe=False)
if request.method == "POST":
return JsonResponse(lab_manager.update_host(host_id, request.POST), safe=False)
# API extension for Cobbler integration
def all_images(request, lab_name=""):
a = []
for i in Image.objects.all():
a.append(i.serialize())
return JsonResponse(a, safe=False)
def all_opsyss(request, lab_name=""):
a = []
for opsys in Opsys.objects.all():
a.append(opsys.serialize())
return JsonResponse(a, safe=False)
@csrf_exempt
def single_image(request, lab_name="", image_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
img = lab_manager.get_image(image_id).first()
if request.method == "GET":
if not img:
return HttpResponse(status=404)
return JsonResponse(img.serialize(), safe=False)
if request.method == "POST":
# get POST data
data = json.loads(request.body.decode('utf-8'))
if img:
img.update(data)
else:
# append lab name and the ID from the URL
data['from_lab_id'] = lab_name
data['lab_id'] = image_id
# create and save a new Image object
img = Image.new_from_data(data)
img.save()
# indicate success in response
return HttpResponse(status=200)
return HttpResponse(status=405)
@csrf_exempt
def single_opsys(request, lab_name="", opsys_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
opsys = lab_manager.get_opsys(opsys_id).first()
if request.method == "GET":
if not opsys:
return HttpResponse(status=404)
return JsonResponse(opsys.serialize(), safe=False)
if request.method == "POST":
data = json.loads(request.body.decode('utf-8'))
if opsys:
opsys.update(data)
else:
# only name, available, and obsolete are needed to create an Opsys
# other fields are derived from the URL parameters
data['from_lab_id'] = lab_name
data['lab_id'] = opsys_id
opsys = Opsys.new_from_data(data)
opsys.save()
return HttpResponse(status=200)
return HttpResponse(status=405)
# end API extension
def get_pdf(request, lab_name="", booking_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return HttpResponse(lab_manager.get_pdf(booking_id), content_type="text/plain")
def get_idf(request, lab_name="", booking_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
return HttpResponse(lab_manager.get_idf(booking_id), content_type="text/plain")
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")
@csrf_exempt
def update_host_bmc(request, lab_name="", host_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
if request.method == "POST":
# update / create RemoteInfo for host
return JsonResponse(
lab_manager.update_host_remote_info(request.POST, host_id),
safe=False
)
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)
@csrf_exempt
def specific_task(request, lab_name="", job_id="", task_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
LabManagerTracker.get(lab_name, lab_token) # Authorize caller, but we dont need the result
if request.method == "POST":
task = get_task(task_id)
if 'status' in request.POST:
task.status = request.POST.get('status')
if 'message' in request.POST:
task.message = request.POST.get('message')
if 'lab_token' in request.POST:
task.lab_token = request.POST.get('lab_token')
task.save()
NotificationHandler.task_updated(task)
d = {}
d['task'] = task.config.get_delta()
m = {}
m['status'] = task.status
m['job'] = str(task.job)
m['message'] = task.message
d['meta'] = m
return JsonResponse(d, safe=False)
elif request.method == "GET":
return JsonResponse(get_task(task_id).config.get_delta())
@csrf_exempt
def specific_job(request, lab_name="", job_id=""):
lab_token = request.META.get('HTTP_AUTH_TOKEN')
lab_manager = LabManagerTracker.get(lab_name, lab_token)
if request.method == "POST":
return JsonResponse(lab_manager.update_job(job_id, request.POST), safe=False)
return JsonResponse(lab_manager.get_job(job_id), safe=False)
@csrf_exempt
def resource_ci_userdata(request, lab_name="", job_id="", resource_id="", file_id=0):
# lab_token = request.META.get('HTTP_AUTH_TOKEN')
# lab_manager = LabManagerTracker.get(lab_name, lab_token)
# job = lab_manager.get_job(job_id)
Job.objects.get(id=job_id) # verify a valid job was given, even if we don't use it
cifile = None
try:
cifile = CloudInitFile.objects.get(id=file_id)
except ObjectDoesNotExist:
return HttpResponseNotFound("Could not find a matching resource by id " + str(resource_id))
text = cifile.text
prepended_text = "#cloud-config\n"
# mstrat = CloudInitFile.merge_strategy()
# prepended_text = prepended_text + yaml.dump({"merge_strategy": mstrat}) + "\n"
# print("in cloudinitfile create")
text = prepended_text + text
cloud_dict = {
"datasource": {
"None": {
"metadata": {
"instance-id": str(uuid.uuid4())
},
"userdata_raw": text,
},
},
"datasource_list": ["None"],
}
return HttpResponse(yaml.dump(cloud_dict, width=float("inf")), status=200)
@csrf_exempt
def resource_ci_metadata(request, lab_name="", job_id="", resource_id="", file_id=0):
return HttpResponse("#cloud-config", status=200)
@csrf_exempt
def resource_ci_userdata_directory(request, lab_name="", job_id="", resource_id=""):
# files = [{"id": file.file_id, "priority": file.priority} for file in CloudInitFile.objects.filter(job__id=job_id, resource_id=resource_id).order_by("priority").all()]
resource = ResourceQuery.get(labid=resource_id, lab=Lab.objects.get(name=lab_name))
files = resource.config.cloud_init_files
files = [{"id": file.id, "priority": file.priority} for file in files.order_by("priority").all()]
d = {}
merge_failures = []
merger = Merger(
[
(list, ["append"]),
(dict, ["merge"]),
],
["override"], # fallback
["override"], # if types conflict (shouldn't happen in CI, but handle case)
)
for f in resource.config.cloud_init_files.order_by("priority").all():
try:
other_dict = yaml.safe_load(f.text)
if not (type(d) is dict):
raise Exception("CI file was valid yaml but was not a dict")
merger.merge(d, other_dict)
except Exception as e:
# if fail to merge, then just skip
print("Failed to merge file in, as it had invalid content:", f.id)
print("File text was:")
print(f.text)
merge_failures.append({f.id: str(e)})
if len(merge_failures) > 0:
d['merge_failures'] = merge_failures
file = CloudInitFile.create(text=yaml.dump(d, width=float("inf")), priority=0)
return HttpResponse(json.dumps([{"id": file.id, "priority": file.priority}]), status=200)
def new_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_new_jobs(), safe=False)
def current_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_current_jobs(), safe=False)
@csrf_exempt
def analytics_job(request, lab_name=""):
""" returns all jobs with type booking"""
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_analytics_job(), safe=False)
if request.method == "POST":
users = json.loads(request.body.decode('utf-8'))['active_users']
try:
ActiveVPNUser.create(lab_name, users)
except ObjectDoesNotExist:
return JsonResponse('Lab does not exist!', safe=False)
return HttpResponse(status=200)
return HttpResponse(status=405)
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 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
# Added logic to detect malformed token
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
"""
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)
def create_ci_file(request):
token = auth_and_log(request, 'booking/makeCloudConfig')
if isinstance(token, HttpResponse):
return token
try:
cconf = request.body
d = yaml.load(cconf)
if not (type(d) is dict):
raise Exception()
cconf = CloudInitFile.create(text=cconf, priority=CloudInitFile.objects.count())
return JsonResponse({"id": cconf.id})
except Exception:
return JsonResponse({"error": "Provided config file was not valid yaml or was not a dict at the top level"})
"""
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)
"""
Booking Details API Views
"""
def booking_details(request, booking_id=""):
token = auth_and_log(request, 'booking/{}/details'.format(booking_id))
if isinstance(token, HttpResponse):
return token
booking = get_object_or_404(Booking, pk=booking_id, owner=token.user)
# overview
overview = {
'username': GeneratedCloudConfig._normalize_username(None, str(token.user)),
'purpose': booking.purpose,
'project': booking.project,
'start_time': booking.start,
'end_time': booking.end,
'pod_definitions': booking.resource.template,
'lab': booking.lab
}
# deployment progress
task_list = []
for task in booking.job.get_tasklist():
task_info = {
'name': str(task),
'status': 'DONE',
'lab_response': 'No response provided (yet)'
}
if task.status < 100:
task_info['status'] = 'PENDING'
elif task.status < 200:
task_info['status'] = 'IN PROGRESS'
if task.message:
if task.type_str == "Access Task" and request.user.id != task.config.user.id:
task_info['lab_response'] = '--secret--'
else:
task_info['lab_response'] = str(task.message)
task_list.append(task_info)
# pods
pod_list = []
for host in booking.resource.get_resources():
pod_info = {
'hostname': host.config.name,
'machine': host.name,
'role': '',
'is_headnode': host.config.is_head_node,
'image': host.config.image,
'ram': {'amount': str(host.profile.ramprofile.first().amount) + 'G', 'channels': host.profile.ramprofile.first().channels},
'cpu': {'arch': host.profile.cpuprofile.first().architecture, 'cores': host.profile.cpuprofile.first().cores, 'sockets': host.profile.cpuprofile.first().cpus},
'disk': {'size': str(host.profile.storageprofile.first().size) + 'GiB', 'type': host.profile.storageprofile.first().media_type, 'mount_point': host.profile.storageprofile.first().name},
'interfaces': [],
}
try:
pod_info['role'] = host.template.opnfvRole
except Exception:
pass
for intprof in host.profile.interfaceprofile.all():
int_info = {
'name': intprof.name,
'speed': intprof.speed
}
pod_info['interfaces'].append(int_info)
pod_list.append(pod_info)
# diagnostic info
diagnostic_info = {
'job_id': booking.job.id,
'ci_files': '',
'pods': []
}
for host in booking.resource.get_resources():
pod = {
'host': host.name,
'configs': [],
}
for ci_file in host.config.cloud_init_files.all():
ci_info = {
'id': ci_file.id,
'text': ci_file.text
}
pod['configs'].append(ci_info)
diagnostic_info['pods'].append(pod)
details = {
'overview': overview,
'deployment_progress': task_list,
'pods': pod_list,
'diagnostic_info': diagnostic_info,
'pdf': booking.pdf
}
return JsonResponse(str(details), safe=False)
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