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[已解决]Flask-Login出错:AttributeError AnonymousUserMixin object has no attribute openid

Flask crifan 1705浏览 0评论

之前已经解决了:

[已解决]Flask-Login出错:NameError: global name ‘current_user’ is not defined

但是此处又出现:

Traceback (most recent call last):
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/gunicorn/workers/sync.py”, line 135, in handle
    self.handle_request(listener, req, client, addr)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/gunicorn/workers/sync.py”, line 176, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 2000, in __call__
    return self.wsgi_app(environ, start_response)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1991, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1567, in handle_exception
    reraise(exc_type, exc_value, tb)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1988, in wsgi_app
    response = self.full_dispatch_request()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1641, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1544, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1639, in full_dispatch_request
    rv = self.dispatch_request()
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/flask/app.py”, line 1625, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File “/root/html/SIPEvents/sipevents/views.py”, line 702, in decorated_function
    return f(*args, **kwargs)
  File “/root/html/SIPEvents/sipevents/views.py”, line 809, in index
    filteredUserEvents = filterUserEvents(curUser.openid)
  File “/root/Envs/SIPEvents/lib/python2.7/site-packages/werkzeug/local.py”, line 343, in __getattr__
    return getattr(self._get_current_object(), name)
AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘openid’

回头去查log,发现是:

g=<flask.g of ‘sipevents’>, curUser=<flask_login.AnonymousUserMixin object at 0x7f57e0f3d410>

<div–<——————————————————————————

<div–<——————————————————————————

DEBUG in views [/root/html/SIPEvents/sipevents/views.py:775]:
curUser=<flask_login.AnonymousUserMixin object at 0x7f57e0f3d410>

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘openid’

AttributeError AnonymousUserMixin object has no attribute

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘username’ | Treehouse Community

python – How to track the current user in flask-login? – Stack Overflow

-》都在说:

如何继承AnonymousUserMixin

去添加对应的属性

-》但是我此处是:

看来没有实现:

限定登录后才允许访问对应的路径啊。。

@pot.before_request
def load_users():
    if current_user.is_authenticated():
        g.user = current_user.get_id() # return username in get_id()
    else:
        g.user = None # or ‘some fake value’, whatever

-》

此处

g.user = current_user.get_id()

只赋值了id,但是也没有获得对应的对象啊。。。

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘id’ · Issue #178 · mattupstate/flask-security

Werkzeug Internal Server Error

Flask Socket-IO misses current_user with request from NGROK | Social marketing, Digital marketing, Inbound Marketing

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘username’ | Treehouse Community

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘username’ Social Media Flask Error | Treehouse Community

flask网站’AnonymousUser’对象没有’confirmed’属性 – SegmentFault

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘roles’ · Issue #7 · raddevon/flask-permissions

去改为:

@app.before_request
def before_request():
    “””
    这里是全局的方法,在请求开始之前调用。
    其中 flask 有个全局的变量 g,它是和 session 一样的用途,可以使用它来保存当前用户的数据
    Returns:
    “””
    if current_user.is_authenticated():
        g.user = current_user
    else:
        g.user = None
    gLog.debug(“g=%s current_user=%s”, g, current_user)
    pass

结果:

    if current_user.is_authenticated():
TypeError: ‘bool’ object is not callable

对应的:

/Users/crifan/dev/dev_root/daryun/SIPEvents/sourcecode/flask/sipevents/models.py

class User(db.Model):
    __tablename__ = ‘wechat_users’
 。。。
    # is_authenticated 允许用户验证,只返回True
    def is_authenticated(self):
        return True

所以去改为:

    if current_user.is_authenticated:
        g.user = current_user
    else:
        g.user = None

结果:

就可以了:

另外:

[已解决]Flask-Login中找不到next_is_valid

但是又出现另外的:

[已解决]Flask-Login出错:AttributeError Flask object has no attribute flash

至此,终于解决了。

[总结]

此处之所以出现:

AttributeError: ‘AnonymousUserMixin’ object has no attribute ‘openid’

的错误,原因是:

在before_request中,之前是直接赋值的:

g.user = current_user

而对于默认的,没有登陆的情况下,是匿名用户,此时current_user是AnonymousUserMixin类型

(而不是我们自己此处定义的,有对应的openid的属性的,User类型)

所以后面对于g.user,只要调用到User的属性和方法,就会出错。

解决办法是:

改为:

@app.before_request
def before_request():
    “””
    这里是全局的方法,在请求开始之前调用。
    其中 flask 有个全局的变量 g,它是和 session 一样的用途,可以使用它来保存当前用户的数据
    Returns:
    “””
    if current_user.is_authenticated:
        g.user = current_user
    else:
        g.user = None
    gLog.debug(“g=%s, g.user=%s, current_user=%s”, g, g.user, current_user)
    pass

注:

此处,正常的,登录后的用户,输出是:

g=<flask.g of ‘sipevents’>, g.user=<User nickname=u’crifan.com’ openid=oswjmv-QiQp-_5pFB0thKxfCZ8Tc avatar_static_path=img/avatar/oswjmv-QiQp-_5pFB0thKxfCZ8Tc.png>, current_user=<User nickname=u’crifan.com’ openid=oswjmv-QiQp-_5pFB0thKxfCZ8Tc avatar_static_path=img/avatar/oswjmv-QiQp-_5pFB0thKxfCZ8Tc.png>

这样的话,就可以保证:

对于没有登录的current_user,类型为AnonymousUserMixin的匿名用户,是没有authenticated的,所以current_user.is_authenticated为false,所以此时g.user设置为None

这样,对于后续的:

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

login_required中,发现g.user为None,就会跳转到登录的整套逻辑里面去,

对于登录的整套逻辑中,登录完成后,会执行到:

login_user

这样,current_user.is_authenticated就为True,就可以把记录下来的,已登录的User类型的用户,赋值给g.user了,

之后,就可以正常使用User类型的g.user了,就不会再报错了。

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