需要默认登录，而不是每次都添加decorator

Question

我用Flask HTTPAuth在我的应用程序中处理身份验证。我有很多视图，我不想将login_required添加到每个视图中。如何使默认登录是必需的？在

from flask.ext.httpauth import HTTPBasicAuth
auth = HTTPBasicAuth()

@auth.verify_password
def verify_password(username, password):
    return username == '111' and password == '222'

@app.route('/')
@app.route('/home/')
@auth.login_required
def index():
    return 'Hello'

@app.route('/route2/')
def route2():
    return 'route2'

app.secret_key = 'A0Zr98j/3yX R~XHH!jmN]LWX/,?RT'

Answer 1

您可以添加一个before_request函数来要求默认登录，并为少数不需要它的路由创建一个简单的login_exempt装饰器。在

请确保排除静态文件，否则将不会为未经身份验证的用户加载这些文件。在

flaskhttpauth的login_required无法将require逻辑与视图装饰器分开，您需要在不运行视图的情况下进行一个小动作来require auth。在

def login_exempt(f):
    f.login_exempt = True
    return f

# a dummy callable to execute the login_required logic
login_required_dummy_view = auth.login_required(lambda: None)

@app.before_request
def default_login_required():
    # exclude 404 errors and static routes
    # uses split to handle blueprint static routes as well
    if not request.endpoint or request.endpoint.rsplit('.', 1)[-1] == 'static':
        return

     view = current_app.view_functions[request.endpoint]

     if getattr(view, 'login_exempt', False):
         return

     return login_required_dummy_view()

# for example, the login page shouldn't require login
@app.route('/login', methods=['GET', 'POST'])
@login_exempt
def login():
    pass