devicehub-django/api/views.py

307 lines
9 KiB
Python

import json
import uuid
import logging
from uuid import uuid4
from django.urls import reverse_lazy
from django.conf import settings
from django.http import JsonResponse
from django.shortcuts import get_object_or_404, redirect
from django.utils.translation import gettext_lazy as _
from django.views.decorators.csrf import csrf_exempt
from django.utils.decorators import method_decorator
from django_tables2 import SingleTableView
from django.views.generic.edit import (
CreateView,
DeleteView,
UpdateView,
)
from utils.save_snapshots import move_json, save_in_disk
from django.views.generic.edit import View
from dashboard.mixins import DashboardView
from evidence.models import SystemProperty, UserProperty
from evidence.parse_details import ParseSnapshot
from evidence.parse import Build
from device.models import Device
from api.models import Token
from api.tables import TokensTable
logger = logging.getLogger('django')
class ApiMixing(View):
@method_decorator(csrf_exempt)
def dispatch(self, *args, **kwargs):
return super().dispatch(*args, **kwargs)
def auth(self):
# Authentication
auth_header = self.request.headers.get('Authorization')
if not auth_header or not auth_header.startswith('Bearer '):
logger.error("Invalid or missing token %s", auth_header)
return JsonResponse({'error': 'Invalid or missing token'}, status=401)
token = auth_header.split(' ')[1].strip("'").strip('"')
try:
uuid.UUID(token)
except Exception:
logger.error("Invalid or missing token %s", token)
return JsonResponse({'error': 'Invalid or missing token'}, status=401)
self.tk = Token.objects.filter(token=token).first()
if not self.tk:
logger.error("Invalid or missing token %s", token)
return JsonResponse({'error': 'Invalid or missing token'}, status=401)
class NewSnapshotView(ApiMixing):
def get(self, request, *args, **kwargs):
return JsonResponse({}, status=404)
def post(self, request, *args, **kwargs):
response = self.auth()
if response:
return response
# Validation snapshot
try:
data = json.loads(request.body)
except json.JSONDecodeError:
txt = "error: the snapshot is not a json"
logger.error("%s", txt)
return JsonResponse({'error': 'Invalid JSON'}, status=500)
# Process snapshot
path_name = save_in_disk(data, self.tk.owner.institution.name)
# try:
# Build(data, None, check=True)
# except Exception:
# return JsonResponse({'error': 'Invalid Snapshot'}, status=400)
if not data.get("uuid"):
txt = "error: the snapshot not have uuid"
logger.error("%s", txt)
return JsonResponse({'status': txt}, status=500)
exist_property = SystemProperty.objects.filter(
uuid=data['uuid']
).first()
if exist_property:
txt = "error: the snapshot {} exist".format(data['uuid'])
logger.warning("%s", txt)
return JsonResponse({'status': txt}, status=500)
try:
Build(data, self.tk.owner)
except Exception as err:
if settings.DEBUG:
logger.exception("%s", err)
snapshot_id = data.get("uuid", "")
txt = "It is not possible to parse snapshot: %s."
logger.error(txt, snapshot_id)
text = "fail: It is not possible to parse snapshot"
return JsonResponse({'status': text}, status=500)
property = SystemProperty.objects.filter(
uuid=data['uuid'],
# TODO this is hardcoded, it should select the user preferred algorithm
key="hidalgo1",
owner=self.tk.owner.institution
).first()
if not property:
logger.error("Error: No property for uuid: %s", data["uuid"])
return JsonResponse({'status': 'fail'}, status=500)
url_args = reverse_lazy("device:details", args=(property.value,))
url = request.build_absolute_uri(url_args)
response = {
"status": "success",
"dhid": property.value[:6].upper(),
"url": url,
# TODO replace with public_url when available
"public_url": url
}
move_json(path_name, self.tk.owner.institution.name)
return JsonResponse(response, status=200)
class TokenView(DashboardView, SingleTableView):
template_name = "token.html"
title = _("Credential management")
section = "Credential"
subtitle = _('Managament Tokens')
icon = 'bi bi-key'
model = Token
table_class = TokensTable
def get_queryset(self):
"""
Override the get_queryset method to filter events based on the user type.
"""
return Token.objects.filter().order_by("-id")
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context.update({
'tokens': Token.objects.all(),
})
return context
class TokenDeleteView(DashboardView, DeleteView):
model = Token
def get(self, request, *args, **kwargs):
self.pk = kwargs['pk']
self.object = get_object_or_404(self.model, pk=self.pk, owner=self.request.user)
self.object.delete()
return redirect('api:tokens')
class TokenNewView(DashboardView, CreateView):
template_name = "new_token.html"
title = _("Credential management")
section = "Credential"
subtitle = _('New Tokens')
icon = 'bi bi-key'
model = Token
success_url = reverse_lazy('api:tokens')
fields = (
"tag",
)
def form_valid(self, form):
form.instance.owner = self.request.user
form.instance.token = uuid4()
return super().form_valid(form)
class EditTokenView(DashboardView, UpdateView):
template_name = "new_token.html"
title = _("Credential management")
section = "Credential"
subtitle = _('New Tokens')
icon = 'bi bi-key'
model = Token
success_url = reverse_lazy('api:tokens')
fields = (
"tag",
)
def get_form_kwargs(self):
pk = self.kwargs.get('pk')
self.object = get_object_or_404(
self.model,
owner=self.request.user,
pk=pk,
)
kwargs = super().get_form_kwargs()
return kwargs
class DetailsDeviceView(ApiMixing):
def get(self, request, *args, **kwargs):
response = self.auth()
if response:
return response
self.pk = kwargs['pk']
self.object = Device(id=self.pk)
if not self.object.last_evidence:
return JsonResponse({}, status=404)
if self.object.owner != self.tk.owner.institution:
return JsonResponse({}, status=403)
data = self.get_data()
return JsonResponse(data, status=200)
def post(self, request, *args, **kwargs):
return JsonResponse({}, status=404)
def get_data(self):
data = {}
self.object.initial()
self.object.get_last_evidence()
evidence = self.object.last_evidence
if evidence.is_legacy():
data.update({
"device": evidence.get("device"),
"components": evidence.get("components"),
})
else:
evidence.get_doc()
snapshot = ParseSnapshot(evidence.doc).snapshot_json
data.update({
"device": snapshot.get("device"),
"components": snapshot.get("components"),
})
uuids = SystemProperty.objects.filter(
owner=self.tk.owner.institution,
value=self.pk
).values("uuid")
properties = UserProperty.objects.filter(
uuid__in=uuids,
owner=self.tk.owner.institution,
).values_list("key", "value")
data.update({"properties": list(properties)})
return data
class AddPropertyView(ApiMixing):
def post(self, request, *args, **kwargs):
response = self.auth()
if response:
return response
self.pk = kwargs['pk']
institution = self.tk.owner.institution
self.property = SystemProperty.objects.filter(
owner=institution,
value=self.pk,
).first()
if not self.property:
return JsonResponse({}, status=404)
try:
data = json.loads(request.body)
key = data["key"]
value = data["value"]
except Exception:
logger.error("Invalid Snapshot of user %s", self.tk.owner)
return JsonResponse({'error': 'Invalid JSON'}, status=500)
UserProperty.objects.create(
uuid=self.property.uuid,
owner=self.tk.owner.institution,
key = key,
value = value
)
return JsonResponse({"status": "success"}, status=200)
def get(self, request, *args, **kwargs):
return JsonResponse({}, status=404)