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##############################################################################
# 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
##############################################################################
from django.http import HttpResponse
from django.shortcuts import render
import uuid
from workflow.workflow_manager import ManagerTracker, SessionManager
import logging
logger = logging.getLogger(__name__)
def attempt_auth(request):
try:
manager = ManagerTracker.managers[request.session['manager_session']]
return manager
except KeyError:
return None
def remove_workflow(request):
manager = attempt_auth(request)
if not manager:
return no_workflow(request)
has_more_workflows, result = manager.pop_workflow(discard=True)
if not has_more_workflows: # this was the last workflow, so delete the reference to it in the tracker
del ManagerTracker.managers[request.session['manager_session']]
return manager.render(request)
def add_workflow(request):
manager = attempt_auth(request)
if not manager:
return no_workflow(request)
try:
workflow_type = int(request.POST.get('workflow_type'))
except ValueError:
return HttpResponse(status=400)
manager.add_workflow(workflow_type=workflow_type)
return manager.render(request) # do we want this?
def manager_view(request):
manager = attempt_auth(request)
if not manager:
return no_workflow(request)
return manager.handle_request(request)
def viewport_view(request):
if not request.user.is_authenticated:
return login(request)
manager = attempt_auth(request)
if manager is None:
return no_workflow(request)
if request.method != 'GET':
return HttpResponse(status=405)
return render(request, 'workflow/viewport-base.html')
def create_workflow(request):
if request.method != 'POST':
return HttpResponse(status=405)
workflow_type = request.POST.get('workflow_type')
try:
workflow_type = int(workflow_type)
except Exception:
return HttpResponse(status=400)
mgr_uuid = create_session(workflow_type, request=request,)
request.session['manager_session'] = mgr_uuid
return HttpResponse()
def create_session(wf_type, request):
smgr = SessionManager(request=request)
smgr.add_workflow(workflow_type=wf_type, target_id=request.POST.get("target"))
manager_uuid = uuid.uuid4().hex
ManagerTracker.getInstance().managers[manager_uuid] = smgr
return manager_uuid
def no_workflow(request):
return render(request, 'workflow/no_workflow.html', {'title': "Not Found"}, status=404)
def login(request):
return render(request, "dashboard/login.html", {'title': 'Authentication Required'})
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