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from functools import wraps |
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import json |
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import gzip |
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import time |
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6
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from flask import Response, abort, after_this_request, g, jsonify, request |
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from flask_jwt_extended import jwt_required, get_jwt_identity |
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from flask_restful import Resource |
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from werkzeug.exceptions import HTTPException |
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def after_request(response): |
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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 exception_handler(e): |
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print(e) |
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if isinstance(e, HTTPException): |
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description = e.description |
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code = e.code |
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elif isinstance(e, BaseResource.ValidationError): |
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description = e.description |
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code = 400 |
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else: |
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description = '' |
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code = 500 |
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return jsonify({ |
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'msg': description |
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}), code |
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36
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def gzipped(fn): |
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@wraps(fn) |
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def wrapper(*args, **kwargs): |
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@after_this_request |
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def zipper(response): |
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if 'gzip' not in request.headers.get('Accept-Encoding', '')\ |
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or not 200 <= response.status_code < 300\ |
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or 'Content-Encoding' in response.headers: |
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# 1. Accept-Encoding에 gzip이 포함되어 있지 않거나 |
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# 2. 200번대의 status code로 response하지 않거나 |
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# 3. response header에 이미 Content-Encoding이 명시되어 있는 경우 |
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return response |
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response.data = gzip.compress(response.data) |
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response.headers.update({ |
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'Content-Encoding': 'gzip', |
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'Vary': 'Accept-Encoding', |
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'Content-Length': len(response.data) |
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}) |
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return response |
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return fn(*args, **kwargs) |
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return wrapper |
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61
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62
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def auth_required(model): |
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def decorator(fn): |
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@wraps(fn) |
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@jwt_required |
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def wrapper(*args, **kwargs): |
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raise NotImplementedError() |
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# return fn(*args, **kwargs) |
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return wrapper |
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return decorator |
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def json_required(required_keys, check_blank_str=True): |
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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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84
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for key, typ in required_keys.items(): |
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if key not in request.json or type(request.json[key]) is not typ: |
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abort(400) |
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if check_blank_str and typ is str and not request.json[key]: |
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abort(400) |
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90
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return fn(*args, **kwargs) |
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return wrapper |
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return decorator |
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93
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94
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95
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class BaseResource(Resource): |
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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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98
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99
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@classmethod |
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def unicode_safe_json_dumps(cls, data, status_code=200, **kwargs) -> Response: |
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return Response( |
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json.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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107
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108
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class ValidationError(Exception): |
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def __init__(self, description='', *args): |
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self.description = description |
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112
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super(BaseResource.ValidationError, self).__init__(*args) |
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113
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114
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115
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def route(app): |
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app.after_request(after_request) |
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app.register_error_handler(Exception, exception_handler) |
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118
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119
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from app.views import sample |
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120
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app.register_blueprint(sample.api.blueprint) |
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JoMingyu /
Flask-Large-Application-Example
