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96 lines
2.4 KiB
Python
96 lines
2.4 KiB
Python
# -*- coding:utf-8 -*-
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from datetime import datetime
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from functools import wraps
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from flask import request
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from flask_restful import Resource
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from werkzeug.exceptions import NotFound, Unauthorized
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from extensions.ext_database import db
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from models.dataset import Dataset
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from models.model import ApiToken, App
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def validate_app_token(view=None):
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def decorator(view):
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@wraps(view)
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def decorated(*args, **kwargs):
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api_token = validate_and_get_api_token('app')
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app_model = db.session.query(App).get(api_token.app_id)
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if not app_model:
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raise NotFound()
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if app_model.status != 'normal':
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raise NotFound()
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if not app_model.enable_api:
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raise NotFound()
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return view(app_model, None, *args, **kwargs)
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return decorated
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if view:
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return decorator(view)
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# if view is None, it means that the decorator is used without parentheses
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# use the decorator as a function for method_decorators
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return decorator
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def validate_dataset_token(view=None):
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def decorator(view):
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@wraps(view)
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def decorated(*args, **kwargs):
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api_token = validate_and_get_api_token('dataset')
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dataset = db.session.query(Dataset).get(api_token.dataset_id)
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if not dataset:
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raise NotFound()
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return view(dataset, *args, **kwargs)
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return decorated
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if view:
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return decorator(view)
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# if view is None, it means that the decorator is used without parentheses
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# use the decorator as a function for method_decorators
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return decorator
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def validate_and_get_api_token(scope=None):
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"""
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Validate and get API token.
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"""
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auth_header = request.headers.get('Authorization')
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if auth_header is None:
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raise Unauthorized()
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auth_scheme, auth_token = auth_header.split(None, 1)
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auth_scheme = auth_scheme.lower()
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if auth_scheme != 'bearer':
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raise Unauthorized()
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api_token = db.session.query(ApiToken).filter(
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ApiToken.token == auth_token,
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ApiToken.type == scope,
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).first()
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if not api_token:
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raise Unauthorized()
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api_token.last_used_at = datetime.utcnow()
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db.session.commit()
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return api_token
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class AppApiResource(Resource):
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method_decorators = [validate_app_token]
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class DatasetApiResource(Resource):
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method_decorators = [validate_dataset_token]
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