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pds-2021-g2-nest/nest_backend/routes/repository/alerts/alert.py
2021-05-15 16:46:31 +02:00

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8.5 KiB
Python

from flask import render_template, abort, jsonify, request
from nest_backend.database import *
from flask_jwt_extended import jwt_required, get_jwt_identity
from nest_backend.gestione import *
from flask_cors import cross_origin
import datetime
@cross_origin()
@jwt_required()
@repository_auth
def page_alert(aid):
"""
---
get:
summary: Get details about an alert.
parameters:
- in: path
schema: AlertParameterSchema
security:
- jwt: []
responses:
'200':
description: The details about the requested alert. The schema is incapsulated in Success.
content:
application/json:
schema: Alert
'404':
description: Could not find the requested repository.
content:
application/json:
schema: Error
'403':
description: The user is not authorized.
content:
application/json:
schema: Error
'401':
description: The user is not logged in.
content:
application/json:
schema: Error
tags:
- alert-related
delete:
summary: Deletes an alert.
parameters:
- in: path
schema: AlertParameterSchema
security:
- jwt: []
responses:
'204':
description: The repository has been deleted successfully.
'404':
description: Could not find the requested repository.
content:
application/json:
schema: Error
'403':
description: The user is not authorized.
content:
application/json:
schema: Error
'401':
description: The user is not logged in.
content:
application/json:
schema: Error
'500':
description: Could not delete the repository.
content:
application/json:
schema: Error
tags:
- alert-related
patch:
summary: Updates an alert and the boolops structure.
security:
- jwt: []
requestBody:
required: true
content:
application/json:
schema: Alert
parameters:
- in: path
schema: AlertParameterSchema
responses:
'204':
description: The alert has been updated successfully.
content:
application/json:
schema: Alert
'404':
description: Could not find the requested repository.
content:
application/json:
schema: Error
'403':
description: The user is not authorized.
content:
application/json:
schema: Error
'401':
description: The user is not logged in.
content:
application/json:
schema: Error
tags:
- alert-related
"""
user = find_user(get_jwt_identity())
alert = Alert.query.filter_by(id=aid).first()
if alert.repository_id not in user.owner_of:
return json_error("The user is not authorized."), 403
if not alert:
return json_error("Could not find alert."), 404
if alert.repository not in [a.repository for a in user.authorizations] + user.owner_of:
return json_error("You are not authorized to proceed."), 403
if request.method == "GET":
return json_success(alert.to_json()), 200
if alert.repository not in user.owner_of:
return json_error("You are not authorized to proceed."), 403
if request.method == "PATCH":
if 'name' in request.json:
alert.name = request.json['name']
if 'limit' in request.json:
alert.limit = request.json['limit']
if 'window_size' in request.json:
alert.window_size = request.json['window_size']
ext.session.commit()
return json_success(alert.to_json()), 204
elif request.method == "DELETE":
try:
ext.session.delete(alert)
ext.session.commit()
except Exception:
return json_error("Something went wrong while deleting alert."), 500
return json_success("Deletion completed."), 204
elif request.method == "PUT":
if not json_request_authorizer(request.json, alert):
return json_error("Missing one or more parameters in repository json."), 400
alert.limit = request.json['limit']
alert.name = request.json['name']
alert.window_size = request.json['window_size']
root_id = alert.to_json()['root_operation']['id']
root = BoolOperation.filter_by(id=root_id).first()
if not root:
return json_error("Could not find original root element."), 404
# No longer used chain element deletion
l = []
bool_list = root.get_chains_ids(l)
for element in alert.operations:
if element.id not in bool_list:
if element.id == root.id:
root = None
ext.session.delete(element)
ext.session.commit()
if request.json['root-operation'].get('id'): # If an alternative root is already present.
new_root_test = BoolOperation.filter_by(id=request.json['root_operation']['id']).first()
if new_root_test and new_root_test != root:
new_root_test.is_root = True
ext.session.commit()
else: # If the alternative root needs to be brand-new.
condition_id = None
if request.json['root_operation'].get('condition'): # Is the new alternative connected to a condition?
if not Condition.query.filter_by(id=request.json['root_operation']['condition']['id'],
repository_id=alert.repository_id).first():
return json_error("One of the provided IDs is incorrect."), 404
condition_id = request.json['root_operation']['condition']['id']
if (type_ := request.json['root-operation']['operation']) is not None:
try:
type_ = OperationType(type_)
except KeyError:
return json_error("Unknown `operation` specified."), 400
root = BoolOperation(operation=type_, is_root=True, alert_id=aid, condition_id=condition_id)
ext.session.add(root)
ext.session.commit()
root = BoolOperation.filter_by(id=request.json['root_operation']['id']).first()
try:
recursion(root, ext, request.json['root_operation'])
except FileNotFoundError:
return json_error("One of the provided IDs is incorrect"), 404
except KeyError:
return json_error("Unknown field specified."), 400
return json_success(alert.to_json()), 200
def create_node(node, ext, json, id):
# Check if the node already exists
id_1 = json[f'node_{id}']['id']
if id_1:
node_1 = BoolOperation.query.filter_by(id=id_1).first()
if not node_1:
raise FileNotFoundError
else:
# The node is new.
condition_id = None
if json[f'node_{id}'].get('condition'):
condition = Condition.query.filter_by(
id=json[f'node_{id}']['condition']['id']).filter(
Condition.repository_id == node.alert.repository_id).first()
if not condition:
raise FileNotFoundError
condition_id = condition.id
if (type_ := json[f'node_{id}']['operation']) is not None:
type_ = OperationType(type_)
else:
raise FileNotFoundError
# Create new node
node_1 = BoolOperation(operation=type_, is_root=False, condition_id=condition_id, alert_id=node.alert_id)
ext.session.add(node_1)
ext.session.commit()
# Recursion goes brr
recursion(node_1, ext, json['node_1'])
def recursion(node, ext, json):
if json.get('node_1'): # Create node 1
create_node(node, ext, json, 1)
if json.get('node_2'): # Create node 2
create_node(node, ext, json, 2)