def analysis_status_json(request):
authed_user = auth.get_current_user()
if authed_user is None:
return __unauthed_response()
user_key = ps.get_user_key_by_id(authed_user.user_id())
response_part = {
'backoff' : 0, #tells the client to back off for a given amount of time (milliseconds) (This is added to the client's constant poll interval)
'giveup' : True, #True instructs the client to stop polling - useful for situations such as unauthed requests where polling will never result in the user being shown a graph
'done' : False #True indicates that the analysis has finished and that the user can be redirected to the new image
}
try:
file_req = json.loads(request.raw_post_data)
except ValueError:
response_part.update({'error' : 'Invalid request payload.'})
return HttpResponse(json.dumps(response_part), content_type="application/json")
if 'filename' not in file_req:
response_part.update({'error' : 'Incomplete request.'})
return HttpResponse(json.dumps(response_part), content_type="application/json")
chk_file_name = DATA_BUCKET + '/' + file_req['filename']
file_entry = ps.get_file_by_name(chk_file_name)
logging.info(file_entry)
if file_entry is None:
response_part.update( { 'error' : 'File or gate not recognised.', 'giveup' : False } )
return HttpResponse(json.dumps(response_part), content_type="application/json")
else:
fp_entry = ps.get_user_file_permissions(file_entry.key, user_key)
if fp_entry is None:
response_part.update( { 'error' : 'Permission denied.' } )
return HttpResponse(json.dumps(response_part), content_type="application/json")
name = file_req['filename']
is_done = ds.check_exists(GRAPH_BUCKET + '/' + name + '.png', None)
#Prevent redirecting before the view is ready
is_done &= ds.check_exists(DATA_BUCKET + '/' + name, None)
#Prevent redirecting before gating info is ready
is_done &= ds.check_exists(INFO_BUCKET + '/' + name + '.txt', None)
response_part.update( { 'done' : is_done, 'giveup' : False } )
return HttpResponse(json.dumps(response_part), content_type="application/json")
def generate_gating_feedback(status, message, new_graph_name = None, existing_name = None, new_axis_a = "FSC-A", new_axis_b = "SSC-A"):
if new_graph_name is not None:
## Authenticate and get user
authed_user = auth.get_current_user()
user_key = ps.get_user_key_by_id(authed_user.user_id())
## Get previous file permissions.
previous_file = ps.get_file_by_name(DATA_BUCKET + existing_name)
previous_permissions = ps.get_user_file_permissions(previous_file.key, user_key)
if isinstance(new_graph_name, list):
new_graph_names = new_graph_name
else:
new_graph_names = [new_graph_name]
# Overwrite new_graph_name for return dictionary
new_graph_name = new_graph_names[0]
logging.info(new_graph_name)
logging.info(new_graph_names)
for new_name in new_graph_names:
new_file = FileInfo(file_name = DATA_BUCKET + new_name,
owner_key = user_key,
friendly_name = previous_file.friendly_name + '-gate',
prev_file_key = previous_file.key,
axis_a = new_axis_a,
axis_b = new_axis_b )
file_key = ps.add_file(new_file)
ps.add_file_permissions(file_key,
user_key,
Permissions (
previous_permissions.read,
previous_permissions.write,
previous_permissions.full_control
),
previous_permissions.colour,
False)
return {
'status': status,
'message': message,
'url': reverse('get_graph', args=[new_graph_name]),
'graphName' : new_graph_name
}
def no_such_tool(gate_params):
## \todo Do we really need to log the entire tool list? It's defined literally.
logging.error('The tool "'+ gate_params['tool'] +'" is unknown. The known tools are: {' +
', '.join(list(AVAILABLE_TOOLS.keys())) + '}' )
return generate_gating_feedback("fail","The tool you selected is not reconized by the server", None)
