Flyway 数据库差异处理

import datetime
import hashlib

from flask import (
    Flask, render_template, redirect, url_for, request,
    make_response, Response, current_app
)
from functools import wraps
from flask_jwt_extended import (
    JWTManager,
    jwt_required,
    verify_jwt_in_request,

    create_access_token,
    create_refresh_token,

    get_jwt_identity,
    get_current_user,

    set_access_cookies,
    set_refresh_cookies,

    unset_refresh_cookies,  # 刷新令牌
    unset_access_cookies,  # 访问令牌
    unset_jwt_cookies,  # 同时清除 访问令牌 和 刷新令牌

)

app = Flask(__name__)
app.secret_key = "ghakjhkghkahkhgkhalkfdngkasnkglhaj".encode('utf-8')

app.config['JWT_TOKEN_LOCATION'] = ["cookies"]

jwt = JWTManager(app)  # 初始化JWTManager


# 捕获令牌过期
@jwt.expired_token_loader
def expired_token_callback(jwt_header, jwt_payload):
    return redirect(url_for('login', message="Session expired, please log in again."))


# 捕获无效的令牌
@jwt.invalid_token_loader
def invalid_token_callback(error):
    return redirect(url_for('login', message="Invalid token, please log in again."))


# 捕获缺少令牌的情况
@jwt.unauthorized_loader
def missing_token_callback(error):
    return redirect(url_for('login', message="Token missing, please log in."))


# 捕获刷新令牌失效
@jwt.revoked_token_loader
def revoked_token_callback(jwt_header, jwt_payload):
    return redirect(url_for('login', message="Token revoked, please log in again."))


@app.route('/')
@app.route('/index', methods=["GET", "POST"])
@jwt_required(fresh=True)
def index():
    # 获取当前会话中的身份信息
    info = get_jwt_identity()
    return render_template('index.html', info=info)


@app.route('/login', methods=["GET", "POST"])
def login():
    if request.method == "POST":
        username = request.form.get('username', None)
        password = request.form.get('password', None)
        confirm_password = request.form.get('confirm_password', None)

        # 表单验证逻辑
        if not username or not password or not confirm_password:
            return render_template('login.html', errors="所有字段不能为空")
        if password != confirm_password:
            return render_template('login.html', errors="密码不一致")

        # 假设用户名和密码验证成功
        if username == "root" and password == "123":
            # 创建JWT token，只存储用户名
            access_token = create_access_token(identity=username, fresh=True)  # fresh=True 创建新鲜令牌
            refresh_token = create_refresh_token(identity=username)

            # 设置JWT到cookie并重定向到主页
            response = redirect(url_for('index'))
            set_access_cookies(
                response, access_token,
                # max_age=60 * 60 * 24 * 7  # 7天有效期
                # max_age=datetime.timedelta(days=2)
            )
            # 设置刷新令牌
            set_refresh_cookies(
                response, refresh_token,
                # max_age=60 * 60 * 24 * 7  # 7天有效期
                # max_age=datetime.timedelta(days=2)
            )

            return response
        else:
            return render_template('login.html', errors="账号或密码有误")

    return render_template('login.html')


@app.route('/logout', methods=["GET", "POST"])
@jwt_required(fresh=True)
def logout():
    # 注销用户并删除JWT cookies
    response = redirect(url_for('login'))
    # unset_access_cookies(response)  # 清除访问令牌
    # unset_refresh_cookies(response)  # 清除刷新令牌

    unset_jwt_cookies(response)  # 可以清除访问+刷新令牌
    return response


# 刷新访问令牌，需要刷新令牌
@app.route('/refresh', methods=['GET', 'POST'])
@jwt_required(refresh=True)  # 使用刷新令牌进行验证
def refresh():
    current_user = get_jwt_identity()  # 从刷新令牌中获取用户身份
    new_access_token = create_access_token(identity=current_user, fresh=True)  # 生成新的访问令牌
    refresh_token = create_refresh_token(identity=current_user)  # 生成新的刷新令牌

    # 创建响应并设置新的访问令牌到 cookies
    response = redirect(url_for('index'))  # 重定向到主页
    set_access_cookies(response, new_access_token)  # 将新的访问令牌写入 cookies
    set_refresh_cookies(response, refresh_token)  # 将新的刷新令牌写入 cookies
    return response


@app.route('/test')
@jwt_required(fresh=True)
def test():
    return "测试成功"


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