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from functools import wraps |
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import ujson |
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import time |
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from flask import Response, request |
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from flask_restful import Resource, abort |
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def after_request(response): |
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""" |
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Set header - X-Content-Type-Options=nosniff, X-Frame-Options=deny before response |
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""" |
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response.headers['X-Content-Type-Options'] = 'nosniff' |
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response.headers['X-Frame-Options'] = 'deny' |
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return response |
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def auth_required(fn): |
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""" |
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View decorator for access control. |
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### TODO |
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If you want to access control easily with this decorator, |
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fill 'wrapper()' function included (1) aborting when access denied client (2) Set user object to flask.g |
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- About custom view decorator |
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-> http://flask-docs-kr.readthedocs.io/ko/latest/patterns/viewdecorators.html |
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""" |
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@wraps(fn) |
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def wrapper(*args, **kwargs): |
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return fn(*args, **kwargs) |
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return wrapper |
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def json_required(*required_keys): |
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""" |
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View decorator for JSON validation. |
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- If content-type is not application/json : returns status code 406 |
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- If required_keys are not exist on request.json : returns status code 400 |
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:type required_keys: str |
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""" |
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def decorator(fn): |
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if fn.__name__ == 'get': |
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print('[WARN] JSON with GET method? on "{}()"'.format(fn.__qualname__)) |
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@wraps(fn) |
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def wrapper(*args, **kwargs): |
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if not request.is_json: |
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abort(406) |
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for required_key in required_keys: |
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if required_key not in request.json: |
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abort(400) |
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return fn(*args, **kwargs) |
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return wrapper |
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return decorator |
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64
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class BaseResource(Resource): |
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""" |
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BaseResource with some helper functions based flask_restful.Resource |
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""" |
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def __init__(self): |
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self.now = time.strftime('%Y-%m-%d %H:%M:%S') |
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@classmethod |
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def unicode_safe_json_dumps(cls, data, status_code=200, **kwargs): |
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""" |
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Helper function which processes json response with unicode using ujson |
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:type data: dict or list |
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:type status_code: int |
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:rtype: Response |
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""" |
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return Response( |
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ujson.dumps(data, ensure_ascii=False), |
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status_code, |
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content_type='application/json; charset=utf8', |
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**kwargs |
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) |
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88
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89
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class Router(object): |
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""" |
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REST resource routing helper class like standard flask 3-rd party libraries |
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""" |
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def __init__(self, app=None): |
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if app is not None: |
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self.init_app(app) |
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def init_app(self, app): |
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""" |
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Routes resources. Use app.register_blueprint() aggressively |
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""" |
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app.after_request(after_request) |
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103
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from app.views import sample |
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app.register_blueprint(sample.api.blueprint) |
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JoMingyu /
Flask-Large-Application-Example
