Flask-JWT-Extended登录验证, 不用自定义

"""安装:pip install Flask-JWT-Extended创建对象 初始化与app绑定jwt = JWTManager(app)  # 初始化JWTManager设置 Cookie 的选项:除了设置 cookie 的名称和值之外，你还可以指定其他的选项，例如：过期时间 (max_age)：   指定 cookie 何时过期。# max_age=60 * 60 * 24 * 7  # 7天有效期max_age=datetime.timedelta(days=2)1. 设置cookies# 设置cookies成功 重定向到首页# 创建JWT token，只存储用户名access_token = create_access_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))return response1.1 # 创建JWT token，只存储用户名# 访问令牌  fresh=True 创建新鲜令牌access_token = create_access_token(identity=username, fresh=True)  # fresh=True 创建新鲜令牌# 刷新令牌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 response2. 获取cookies# 获取当前会话中的身份信息info = get_jwt_identity()return render_template('index.html', info=info)3. 设置cookies会话有效期# 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))4. 删除cookies# 注销用户并删除JWT cookiesresponse = 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 response5. response创建对象的方法:导包:from flask import make_response, Response# 1. response = make_response(redirect(url_for('test_blue.login_index')))# 2. response = make_response(render_template('test/home.html'), 200)# 3. response = make_response("success", 201)# 这种就可以# 4. response = redirect(url_for('login'))6. 捕获异常 并重定向# 捕获令牌过期@jwt.expired_token_loaderdef 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_loaderdef 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_loaderdef 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_loaderdef revoked_token_callback(jwt_header, jwt_payload):return redirect(url_for('login', message="Token revoked, please log in again."))"""

'''# 1. 两者不能同时使用
fresh=True：用于要求新鲜令牌来访问敏感操作。
refresh=True：用于要求刷新令牌来生成新的访问令牌。# 2. 使用新鲜令牌 在创建 (访问令牌)access_token 时 设置 fresh=True
access_token = create_access_token(identity=username, fresh=True)  # fresh=True 创建新鲜令牌# 3. 在装饰里 设置 fresh=True 才能验证新鲜令牌
@jwt_required(fresh=True)'''

 

import datetime
import hashlibfrom 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 responseelse: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 cookiesresponse = 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 cookiesresponse = 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 cookiesset_refresh_cookies(response, refresh_token)  # 将新的刷新令牌写入 cookiesreturn response@app.route('/test')
@jwt_required(fresh=True)
def test():return "测试成功"if __name__ == '__main__':app.run(debug=True)