我正在尝试使用 user_registered 信号,以便在用户使用 Flask-security 注册时为用户设置默认角色,如下链接所示:在 Flask 安全性中设置默认角色 https://stackoverflow.com/questions/17146724/setting-a-default-role-in-flask-security
在我的搜索中,我可以看到 Flask-security 中已经解决了一个错误:没有收到来自烧瓶安全的信号 https://stackoverflow.com/questions/15060849/not-getting-signal-from-flask-security, 修复-user_registered信号问题 https://github.com/mattupstate/flask-security/issues/94
我尝试了以下方法来证明处理程序是否收到信号,但没有任何运气:
@user_registered.connect_via(app)
def user_registered_sighandler(sender, **extra):
print("print-user_registered_sighandler:", extra)
然而,即使用户注册并且应该发送信号,它也永远不会被调用。
如果有帮助,我已将烧瓶安全配置设置如下:
app.config['SECURITY_REGISTERABLE'] = True
app.config['SECURITY_CONFIRMABLE'] = False
app.config['SECURITY_SEND_REGISTER_EMAIL'] = False
app.config['SECURITY_CHANGEABLE'] = True
app.config['SECURITY_SEND_PASSWORD_CHANGE_EMAIL'] = False
来自 Flask-Login 和 Flask-Principal 的信号对我有用,因为我设法确认发送信号时成功打印以下代码片段:
@user_logged_out.connect_via(app)
def on_user_logged_out(sender, user):
print('USER LOG OUT: made it in',user)
@identity_changed.connect_via(app)
def identity_changed_ok(sender,identity):
print('Identity changed:',identity)
对于我的设置,我使用 python 3.3 (anaconda) 并使用以下内容:
Flask==0.10.1,flask-login==0.2.11,flask-principal==0.4.0,flask-security==1.7.4,blinker==1.3。查看了烧瓶登录和烧瓶安全中的信号后,我不确定为什么烧瓶安全信号不起作用。
EDIT:
如果我添加print(user_registered.receivers)
到我的应用程序中的路线,它将显示我有一个接收器:{139923381372400: <function user_registered_sighandler at 0x7f42737145f0>}
。如果我将相同的打印语句放在flask-security的registerable.py中,就在user_registered.send(app._get_current_object(),user=user, confirm_token=token)
然后它没有列出接收者:{}
EDIT2:
问题似乎与使用 python 3.3 有关。我创建了一个 python 2.7 环境,并且 user_registered 代码按预期工作。
完整的重现代码:
from flask import Flask,render_template
from playhouse.flask_utils import FlaskDB
import os
from flask.ext.security import Security, PeeweeUserDatastore
from flask.ext.security.signals import user_registered
from flask.ext.login import user_logged_out
from peewee import *
from playhouse.signals import Model
from flask.ext.security import UserMixin,RoleMixin
app = Flask(__name__)
app.config['ADMIN_PASSWORD']='secret'
app.config['APP_DIR']=os.path.dirname(os.path.realpath(__file__))
app.config['DATABASE']='sqliteext:///%s' % os.path.join(app.config['APP_DIR'], 'blog.db')
app.config['SECRET_KEY'] = 'shhh, secret!'
app.config['SECURITY_REGISTERABLE'] = True
app.config['SECURITY_CONFIRMABLE'] = False
app.config['SECURITY_SEND_REGISTER_EMAIL'] = False
flask_db = FlaskDB()
flask_db.init_app(app)
database = flask_db.database
class BaseModel(Model):
class Meta:
database=flask_db.database
class User(BaseModel, UserMixin):
email=CharField()
password=CharField()
active = BooleanField(default=True)
confirmed_at = DateTimeField(null=True)
def is_active(self):
return True
def is_anonymous(self):
return False
def is_authenticated(self):
return True
class Role(BaseModel, RoleMixin):
name = CharField(unique=True)
description = TextField(null=True)
class UserRoles(BaseModel):
user = ForeignKeyField(User, related_name='roles')
role = ForeignKeyField(Role, related_name='users')
name = property(lambda self: self.role.name)
description = property(lambda self: self.role.description)
user_datastore = PeeweeUserDatastore(database, User, Role, UserRoles)
security = Security(app, user_datastore)
@user_registered.connect_via(app)
def user_registered_sighandler(sender,**extra):
print("print-user_registered_sighandler")
@user_logged_out.connect_via(app)
def on_user_logged_out(sender, user):
print('USER LOG OUT: made it in',user)
@app.route('/')
def index():
print(user_registered.receivers)
return render_template('base.html')
database.create_tables([User,Role,UserRoles], safe=True)
app.run(debug=True)
base.html 模板:
<!doctype html>
<html>
<head>
<title>Blog</title>
</head>
<body>
<ul>
{% if current_user.is_authenticated() %}
<li><a href="{{ url_for('security.logout',next='/') }}">Log out</a></li>
<li><a href="{{ url_for('security.register') }}">Register</a></li>
{% else %}
<li><a href="{{ url_for('security.login',next='/') }}">Login</a></li>
<li><a href="{{ url_for('security.register') }}">Register</a></li>
{% endif %}
{% block extra_header %}{% endblock %}
</ul>
</body>
</html>