Flask-Security的自定义身份验证方法

from flask_security import UserMixin

def custom_authenticate(username, password):
    # 自定义的身份验证逻辑
    # 验证用户名和密码是否匹配
    # 如果匹配，返回一个用户对象，否则返回None
    user = User.query.filter_by(username=username).first()
    if user and user.verify_password(password):
        return user
    return None

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_security import Security, UserMixin

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
app.config['SECRET_KEY'] = 'your-secret-key'
app.config['SECURITY_USER_IDENTITY_ATTRIBUTES'] = ['username']
app.config['SECURITY_PASSWORD_HASH'] = 'bcrypt'

db = SQLAlchemy(app)

class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True)
    password = db.Column(db.String(255))

# 注册自定义身份验证方法
security = Security(app, user_datastore, login_form=LoginForm)
security.login_manager.user_loader(lambda user_id: User.query.get(user_id))
security.login_manager.request_loader(custom_authenticate)

# 其他Flask-Security相关配置和路由定义...

if __name__ == '__main__':
    app.run()