Flask Basic HTTP Auth使用登录页面 [英] Flask Basic HTTP Auth use login page
问题描述
我正在构建一个测试应用程序,并使用这里的说明( http://flask.pocoo。 org / snippets / 8 / )来设置简单的身份验证。在需要身份验证的页面上,出现一个弹出窗口,提示需要授权。
而不是那个,我想重定向到一个登录页面,用户可以把他们的用户/通过在一个窗体。
这是我有目前(与链接中的代码片段相同):
from functools import flask
from flask import request,Response
$ b $ def check_auth(用户名,密码):
调用此函数检查用户名/
密码组合是否有效
返回用户名=='管理员'和密码=='秘密'
def authenticate():
发送401响应,启用基本身份验证
返回响应(
'无法验证您的访问级别为该URL.\\\
'
'您必须以正确的凭据登录',401,
{'WWW (a):验证':'Basic realm =需要登录'))
def require_auth(f):
@wraps(f)
def装饰(* args,** kwargs):
auth = request.authorization
if不是auth或不是check_auth(auth.username,auth.password):
返回authenticate()
返回f(* args,** kwargs)
返回装饰
看起来我可以使用Flask-Auth,但是我真的只需要上面提供的功能。
$ b
感谢,
Ryan
=http://flask.pocoo.org/docs/0.10/patterns/viewdecorators/ =nofollow> http://flask.pocoo.org/docs/0.10/patterns/viewdecorators/ 。有一个示例装饰器可以做到这一点:
来自functools import wrapps $ b $ from flask import g,request,redirect ,url_for
$ b def login_required(f):
@wraps(f)
def decorated_function(* args,** kwargs):
如果g.user是None :
return redirect(url_for('login',next = request.url))
return f(* args,** kwargs)
return decorated_function
$ c $只要返回重定向,而不是像现在这样调用authenticate()方法。
$ b
I'm building a test app and used the instructions here (http://flask.pocoo.org/snippets/8/) to setup simple authentication. On pages where auth is required I get a popup saying "Authorization Required".
Instead of that, I'd like to redirect to a login page where the user can put their user/pass in a form.
Here's what I have currently (same as the snippet in the link):
from functools import wraps
from flask import request, Response
def check_auth(username, password):
"""This function is called to check if a username /
password combination is valid.
"""
return username == 'admin' and password == 'secret'
def authenticate():
"""Sends a 401 response that enables basic auth"""
return Response(
'Could not verify your access level for that URL.\n'
'You have to login with proper credentials', 401,
{'WWW-Authenticate': 'Basic realm="Login Required"'})
def requires_auth(f):
@wraps(f)
def decorated(*args, **kwargs):
auth = request.authorization
if not auth or not check_auth(auth.username, auth.password):
return authenticate()
return f(*args, **kwargs)
return decorated
It looks like I could use Flask-Auth, but I really only need the functionality that the above provides.
Thanks,
Ryan
解决方案 From the documentation, here: http://flask.pocoo.org/docs/0.10/patterns/viewdecorators/. There is a sample decorator that does just this:
from functools import wraps
from flask import g, request, redirect, url_for
def login_required(f):
@wraps(f)
def decorated_function(*args, **kwargs):
if g.user is None:
return redirect(url_for('login', next=request.url))
return f(*args, **kwargs)
return decorated_function
Just return the redirect instead of calling the authenticate() method as you do now.
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