lycorisk
38c11b05d5
1,密码哈希：
将密码加盐哈希的逻辑抽取到 hash_password 函数中，提高代码复用性。
2,参数化查询：
使用参数化的 SQL 查询防止 SQL 注入攻击。
3表单字段获取：
使用 get 方法获取表单字段，并移除多余空格。
4,友好错误提示：
登录失败时，返回错误信息，并保留用户名以减少用户重新输入的负担。
85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
import time
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import hashlib
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from flask import Blueprint, redirect, render_template, request, Flask, session
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from utils.query import query
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from utils.errorResponse import errorResponse
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ub = Blueprint('user',
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__name__,
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url_prefix='/user',
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template_folder='templates')
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# 密码加密函数
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def hash_password(password: str, salt: str = 'XiaoXueQi2024') -> str:
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"""
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使用 SHA256 对密码进行加盐哈希
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:param password: 用户输入的密码
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:param salt: 加盐值，默认值为 'XiaoXueQi2024'
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:return: 哈希后的密码
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"""
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hash_with_salt = hashlib.sha256(salt.encode('utf-8'))
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hash_with_salt.update(password.encode('utf-8'))
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return hash_with_salt.hexdigest()
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@ub.route('/login', methods=['GET', 'POST'])
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def login():
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"""
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处理用户登录请求
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:return: 登录页面或重定向到主页
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"""
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if request.method == 'GET':
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return render_template('login_and_register.html') # 显示登录页面
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# 提取表单数据
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username = request.form.get('username', '').strip()
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password = hash_password(request.form.get('password', '').strip())
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# 查询用户信息
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user_query = 'SELECT * FROM user WHERE username = %s AND password = %s'
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users = query(user_query, [username, password], 'select')
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if not users:
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# 登录失败，返回登录页面并显示错误信息
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return render_template('login_and_register.html', error='账号或密码错误', username=username)
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# 登录成功，设置会话并重定向
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session['username'] = username
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return redirect('/page/home')
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@ub.route('/register', methods=['GET', 'POST'])
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def register():
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if request.method == 'GET':
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return render_template('login_and_register.html')
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else:
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def filter_fn(user):
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return request.form['username'] in user
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users = query('select * from user', [], 'select')
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filter_list = list(filter(filter_fn, users))
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if len(filter_list):
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return errorResponse('该用户名已被注册')
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else:
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time_tuple = time.localtime(time.time())
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hash_with_salt = hashlib.sha256('XiaoXueQi2024'.encode('utf-8'))
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hash_with_salt.update(request.form['password'].encode('utf-8'))
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query(
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'''
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insert into user(username,password,createTime) values(%s,%s,%s)
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''', [
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request.form['username'],
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hash_with_salt.hexdigest(),
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str(time_tuple[0]) + '-' + str(time_tuple[1]) + '-' +
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str(time_tuple[2])
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])
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return redirect('/user/login')
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@ub.route('/logOut')
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def logOut():
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session.clear()
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return redirect('/user/login')
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