Python 如何在flask LDAPloginform功能中登录和注销用户?
我正在测试flask应用程序的登录和注销。我还使用LDAPloginform登录属于ldap服务器的用户 目前,我可以在用户输入用户名和密码并登录后对其进行身份验证,但当我尝试注销用户时,我收到以下错误:Python 如何在flask LDAPloginform功能中登录和注销用户?,python,python-3.x,flask,flask-sqlalchemy,flask-login,Python,Python 3.x,Flask,Flask Sqlalchemy,Flask Login,我正在测试flask应用程序的登录和注销。我还使用LDAPloginform登录属于ldap服务器的用户 目前,我可以在用户输入用户名和密码并登录后对其进行身份验证,但当我尝试注销用户时,我收到以下错误: File "C:\Users\e136320\AppData\Local\Programs\Python\Python38\Lib\site-packages\sqlalchemy\util\compat.py", line 178, in raise_ rai
File "C:\Users\e136320\AppData\Local\Programs\Python\Python38\Lib\site-packages\sqlalchemy\util\compat.py", line 178, in raise_
raise exception
sqlalchemy.orm.exc.UnmappedInstanceError: Class 'werkzeug.local.LocalProxy' is not mapped
# Flask-SQLAlchemy settings
app.config["SQLALCHEMY_DATABASE_URI"] = BASE_CONFIG["SQL_URI"]
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
login_manager = LoginManager(app) # Setup a Flask-Login Manager
ldap_manager = LDAP3LoginManager(app)
db = SQLAlchemy(app)
moment = Moment(app)
Bootstrap(app)
# Create a dictionary to store the users in when they authenticate
# This example stores users in memory.
users = {}
# Declare an Object Model for the user, and make it comply with the
# flask-login UserMixin mixin.
class User(UserMixin):
def __init__(self, dn, username, data):
self.dn = dn
self.username = username
self.data = data
def __repr__(self):
return self.dn
def get_id(self):
return self.dn
# Declare a User Loader for Flask-Login.
# Simply returns the User if it exists in our 'database', otherwise
# returns None.
@login_manager.user_loader
def load_user(id):
if id in users:
return users[id]
return None
# Declare The User Saver for Flask-Ldap3-Login
# This method is called whenever a LDAPLoginForm() successfully validates.
# Here you have to save the user, and return it so it can be used in the
# login controller.
@ldap_manager.save_user
def save_user(dn, username, data, memberships):
user = User(dn, username, data)
users[dn] = user
return user
# Declare some routes for usage to show the authentication process.
@app.route('/')
def home():
# Redirect users who are not logged in.
if not current_user or current_user.is_anonymous:
return redirect(url_for('login'))
# User is logged in, so show them a page with their cn and dn.
return render_template('home_page.html')
@app.route('/login', methods=['GET', 'POST'])
def login():
user = current_user
# Instantiate a LDAPLoginForm which has a validator to check if the user
# exists in LDAP.
form = LDAPLoginForm()
if form.validate_on_submit():
login_user(form.user, remember=True) # Tell flask-login to log them in
print(current_user.username)
return redirect('/') # Send them home
return render_template("login.html", form=form, user=user)
@app.route('/home')
@login_required
def home_page():
return render_template('home_page.html')
@app.route('/logout')
@login_required
def logout():
db.session.delete(current_user) # In order for this to work, I will have to ADD AND COMMIT A USER AS WELL, OTHERWISE GIVES ERROR
db.session.commit()
logout_user()
#flash('You have been logged out.')
return redirect('/')
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000, debug=True)
{% extends "bootstrap/base.html" %}
{% block html_attribs %} lang="en"{% endblock %}
{% block title %} My_app{% endblock %}
{% block styles %}
{{super()}}
{{moment.include_moment()}}
{% endblock %}
{% block navbar %}
<div class="navbar navbar-default" role="navigation" >
<div class="containter">
<div class="navbar-header">
<button type="button" class="navbar-toggle"
data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
</button>
<a class="navbar-brand" href="{{ url_for('home_page')}}"><link rel="stylesheet" href="/static/bcbsm.jpg"></a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li><a href="{{ url_for('home_page') }}"> Home </a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
{% if current_user.is_authenticated %}
<li><a href="{{ url_for('logout') }}">Log Out</a></li>
{%else%}
<li><a href="{{ url_for('login') }}">Log In</a></li>
{%endif%}
</ul>
</div>
</div>
</div>
{% endblock %}
以下是我的项目文件夹结构:
flask_app/
static/
- css/
- js/
templates/
- base.html
- home_page.html
- login.html
- run.py
这是我的run.py代码:
File "C:\Users\e136320\AppData\Local\Programs\Python\Python38\Lib\site-packages\sqlalchemy\util\compat.py", line 178, in raise_
raise exception
sqlalchemy.orm.exc.UnmappedInstanceError: Class 'werkzeug.local.LocalProxy' is not mapped
# Flask-SQLAlchemy settings
app.config["SQLALCHEMY_DATABASE_URI"] = BASE_CONFIG["SQL_URI"]
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
login_manager = LoginManager(app) # Setup a Flask-Login Manager
ldap_manager = LDAP3LoginManager(app)
db = SQLAlchemy(app)
moment = Moment(app)
Bootstrap(app)
# Create a dictionary to store the users in when they authenticate
# This example stores users in memory.
users = {}
# Declare an Object Model for the user, and make it comply with the
# flask-login UserMixin mixin.
class User(UserMixin):
def __init__(self, dn, username, data):
self.dn = dn
self.username = username
self.data = data
def __repr__(self):
return self.dn
def get_id(self):
return self.dn
# Declare a User Loader for Flask-Login.
# Simply returns the User if it exists in our 'database', otherwise
# returns None.
@login_manager.user_loader
def load_user(id):
if id in users:
return users[id]
return None
# Declare The User Saver for Flask-Ldap3-Login
# This method is called whenever a LDAPLoginForm() successfully validates.
# Here you have to save the user, and return it so it can be used in the
# login controller.
@ldap_manager.save_user
def save_user(dn, username, data, memberships):
user = User(dn, username, data)
users[dn] = user
return user
# Declare some routes for usage to show the authentication process.
@app.route('/')
def home():
# Redirect users who are not logged in.
if not current_user or current_user.is_anonymous:
return redirect(url_for('login'))
# User is logged in, so show them a page with their cn and dn.
return render_template('home_page.html')
@app.route('/login', methods=['GET', 'POST'])
def login():
user = current_user
# Instantiate a LDAPLoginForm which has a validator to check if the user
# exists in LDAP.
form = LDAPLoginForm()
if form.validate_on_submit():
login_user(form.user, remember=True) # Tell flask-login to log them in
print(current_user.username)
return redirect('/') # Send them home
return render_template("login.html", form=form, user=user)
@app.route('/home')
@login_required
def home_page():
return render_template('home_page.html')
@app.route('/logout')
@login_required
def logout():
db.session.delete(current_user) # In order for this to work, I will have to ADD AND COMMIT A USER AS WELL, OTHERWISE GIVES ERROR
db.session.commit()
logout_user()
#flash('You have been logged out.')
return redirect('/')
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000, debug=True)
{% extends "bootstrap/base.html" %}
{% block html_attribs %} lang="en"{% endblock %}
{% block title %} My_app{% endblock %}
{% block styles %}
{{super()}}
{{moment.include_moment()}}
{% endblock %}
{% block navbar %}
<div class="navbar navbar-default" role="navigation" >
<div class="containter">
<div class="navbar-header">
<button type="button" class="navbar-toggle"
data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
</button>
<a class="navbar-brand" href="{{ url_for('home_page')}}"><link rel="stylesheet" href="/static/bcbsm.jpg"></a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li><a href="{{ url_for('home_page') }}"> Home </a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
{% if current_user.is_authenticated %}
<li><a href="{{ url_for('logout') }}">Log Out</a></li>
{%else%}
<li><a href="{{ url_for('login') }}">Log In</a></li>
{%endif%}
</ul>
</div>
</div>
</div>
{% endblock %}
如果有帮助,这里是我的login.html文件:
File "C:\Users\e136320\AppData\Local\Programs\Python\Python38\Lib\site-packages\sqlalchemy\util\compat.py", line 178, in raise_
raise exception
sqlalchemy.orm.exc.UnmappedInstanceError: Class 'werkzeug.local.LocalProxy' is not mapped
# Flask-SQLAlchemy settings
app.config["SQLALCHEMY_DATABASE_URI"] = BASE_CONFIG["SQL_URI"]
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
login_manager = LoginManager(app) # Setup a Flask-Login Manager
ldap_manager = LDAP3LoginManager(app)
db = SQLAlchemy(app)
moment = Moment(app)
Bootstrap(app)
# Create a dictionary to store the users in when they authenticate
# This example stores users in memory.
users = {}
# Declare an Object Model for the user, and make it comply with the
# flask-login UserMixin mixin.
class User(UserMixin):
def __init__(self, dn, username, data):
self.dn = dn
self.username = username
self.data = data
def __repr__(self):
return self.dn
def get_id(self):
return self.dn
# Declare a User Loader for Flask-Login.
# Simply returns the User if it exists in our 'database', otherwise
# returns None.
@login_manager.user_loader
def load_user(id):
if id in users:
return users[id]
return None
# Declare The User Saver for Flask-Ldap3-Login
# This method is called whenever a LDAPLoginForm() successfully validates.
# Here you have to save the user, and return it so it can be used in the
# login controller.
@ldap_manager.save_user
def save_user(dn, username, data, memberships):
user = User(dn, username, data)
users[dn] = user
return user
# Declare some routes for usage to show the authentication process.
@app.route('/')
def home():
# Redirect users who are not logged in.
if not current_user or current_user.is_anonymous:
return redirect(url_for('login'))
# User is logged in, so show them a page with their cn and dn.
return render_template('home_page.html')
@app.route('/login', methods=['GET', 'POST'])
def login():
user = current_user
# Instantiate a LDAPLoginForm which has a validator to check if the user
# exists in LDAP.
form = LDAPLoginForm()
if form.validate_on_submit():
login_user(form.user, remember=True) # Tell flask-login to log them in
print(current_user.username)
return redirect('/') # Send them home
return render_template("login.html", form=form, user=user)
@app.route('/home')
@login_required
def home_page():
return render_template('home_page.html')
@app.route('/logout')
@login_required
def logout():
db.session.delete(current_user) # In order for this to work, I will have to ADD AND COMMIT A USER AS WELL, OTHERWISE GIVES ERROR
db.session.commit()
logout_user()
#flash('You have been logged out.')
return redirect('/')
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000, debug=True)
{% extends "bootstrap/base.html" %}
{% block html_attribs %} lang="en"{% endblock %}
{% block title %} My_app{% endblock %}
{% block styles %}
{{super()}}
{{moment.include_moment()}}
{% endblock %}
{% block navbar %}
<div class="navbar navbar-default" role="navigation" >
<div class="containter">
<div class="navbar-header">
<button type="button" class="navbar-toggle"
data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
<span class="icon-bar">Toggle Navigation</span>
</button>
<a class="navbar-brand" href="{{ url_for('home_page')}}"><link rel="stylesheet" href="/static/bcbsm.jpg"></a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li><a href="{{ url_for('home_page') }}"> Home </a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
{% if current_user.is_authenticated %}
<li><a href="{{ url_for('logout') }}">Log Out</a></li>
{%else%}
<li><a href="{{ url_for('login') }}">Log In</a></li>
{%endif%}
</ul>
</div>
</div>
</div>
{% endblock %}
{%extends“bootstrap/base.html”%}
{%block html\u attribs%}lang=“en”{%endblock%}
{%block title%}我的应用程序{%endblock%}
{%block styles%}
{{super()}}
{{时刻。包括{u时刻()}}
{%endblock%}
{%block navbar%}
切换导航
切换导航
切换导航
切换导航
{%如果当前用户是经过身份验证的%}
{%else%}
{%endif%}
{%endblock%}
我不熟悉flask和ldap登录,因此任何信息或建议都会有所帮助。似乎我需要在登录功能中将用户添加到会话中,然后在注销功能中删除该用户。只是很困惑