flask框架：实现客户端登录

水深无声 2022-11-22 12:59 135阅读 0赞

# 前言 #

flask实现web项目

--------------------

# Token #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center]  
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#### 获取Token令牌 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 2]

# -*- coding: utf-8 -*-
    # @Author : ZhaoCunWei
    # @Time : 2020/11/4 4:46 下午
    # @Function:
    from flask import current_app, jsonify
    from itsdangerous import Serializer
    
    from app.api.validators.forms import ClientForm
    from app.libs.enums import ClientTypeEnum
    from app.libs.redprint import Redprint
    from app.models.user import User
    
    api = Redprint('token')
    
    
    @api.route('', methods=['POST'])
    def get_token():
        form = ClientForm().validate_for_api()
        promise = { 
            ClientTypeEnum.USER_EMAIL: User.verify,
        }
        identity = promise[ClientTypeEnum(form.type.data)](
            form.account.data,
            form.secret.data
        )
        # Token
        expiration = current_app.config['TOKEN_EXPIRATION']
        token = generate_auth_token(identity['uid'],
                                    form.type.data,
                                    None,
                                    expiration)
    
        t = { 
            'token': token.decode('ascii')
        }
        return jsonify(t),201
    
    
    def generate_auth_token(uid, ac_type, scope=None, expiration=7200):
        """生成令牌"""
        s = Serializer(current_app.config['SECRET_KEY'],
                       expires_in=expiration)
        return s.dumps({ 
            'uid':uid,
            'type':ac_type.value,
        })

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 5]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 6]

#### Token令牌用处 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 7]  
验证，token是否合法—是否过期

*  @auth拦截器执行流程—装饰器

pip install flask-httpauth

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 8]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 9]

# -*- coding: utf-8 -*-
    # @Author : ZhaoCunWei
    # @Time : 2020/11/4 5:49 下午
    # @Function:
    from collections import namedtuple
    
    from flask import current_app, g
    from flask_httpauth import HTTPBasicAuth
    from itsdangerous import Serializer, BadSignature, SignatureExpired
    
    from app.libs.error_code import AuthFailed
    
    auth = HTTPBasicAuth()
    User = namedtuple('User', ['uid', 'ac_type', 'scope'])
    
    
    @auth.verify_password
    def verify_password(token, password):
        user_info = verify_auth_token(token)
        if not user_info:
            return False
        else:
            g.user = user_info
            return True
    
    
    def verify_auth_token(token):
        s = Serializer(current_app.config['SECRET_KEY'])
    
        try:
            data = s.loads(token)
        except BadSignature:
            raise AuthFailed(msg='token is invalid', error_code=1002)
        except SignatureExpired:
            raise AuthFailed(msg='token is expired', error_code=1003)
    
        uid = data['uid']
        ac_type = data['type']
        return User(uid, ac_type, '')

### 离线创建管理员： ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 10]

命令行里面运行：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 11]

### 管理员查询数据 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 12]

### 普通用户查询数据 ###

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