my_one_web/app.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
云下飞的个人网站 - Flask 版本
支持登录、注册功能
作者：小白 🐶
"""

from flask import Flask, render_template, redirect, url_for, request, flash
from flask_login import LoginManager, UserMixin, login_user, login_required, logout_user, current_user
from flask_sqlalchemy import SQLAlchemy
from werkzeug.security import generate_password_hash, check_password_hash
import os

# 初始化应用
app = Flask(__name__)
app.config['SECRET_KEY'] = 'xiaobai-secret-key-2026'
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///users.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False

# 初始化数据库
db = SQLAlchemy(app)

# 初始化登录管理
login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'login'


# 用户模型
class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True, nullable=False)
    password_hash = db.Column(db.String(120), nullable=False)
    
    def set_password(self, password):
        self.password_hash = generate_password_hash(password)
    
    def check_password(self, password):
        return check_password_hash(self.password_hash, password)


@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))


# 路由 - 首页
@app.route('/')
def index():
    if current_user.is_authenticated:
        return render_template('welcome.html', username=current_user.username)
    return render_template('index.html')


# 路由 - 登录
@app.route('/login', methods=['GET', 'POST'])
def login():
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    
    if request.method == 'POST':
        username = request.form.get('username')
        password = request.form.get('password')
        
        user = User.query.filter_by(username=username).first()
        
        if user and user.check_password(password):
            login_user(user)
            flash('登录成功！欢迎回来~ 🐶', 'success')
            return redirect(url_for('index'))
        else:
            flash('用户名或密码错误！', 'error')
    
    return render_template('login.html')


# 路由 - 注册
@app.route('/register', methods=['GET', 'POST'])
def register():
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    
    if request.method == 'POST':
        username = request.form.get('username')
        password = request.form.get('password')
        confirm_password = request.form.get('confirm_password')
        
        # 验证
        if not username or not password:
            flash('用户名和密码不能为空！', 'error')
            return render_template('register.html')
        
        if password != confirm_password:
            flash('两次密码不一致！', 'error')
            return render_template('register.html')
        
        if len(username) < 3:
            flash('用户名至少3个字符！', 'error')
            return render_template('register.html')
        
        if len(password) < 6:
            flash('密码至少6个字符！', 'error')
            return render_template('register.html')
        
        # 检查用户是否存在
        existing_user = User.query.filter_by(username=username).first()
        if existing_user:
            flash('用户名已存在！', 'error')
            return render_template('register.html')
        
        # 创建新用户
        user = User(username=username)
        user.set_password(password)
        db.session.add(user)
        db.session.commit()
        
        flash('注册成功！请登录~ 🎉', 'success')
        return redirect(url_for('login'))
    
    return render_template('register.html')


# 路由 - 登出
@app.route('/logout')
@login_required
def logout():
    logout_user()
    flash('已退出登录！', 'success')
    return redirect(url_for('index'))


# 创建数据库
with app.app_context():
    db.create_all()
    
    # 创建默认管理员账户
    admin = User.query.filter_by(username='yunxiafei').first()
    if not admin:
        admin = User(username='yunxiafei')
        admin.set_password('xu123654')
        db.session.add(admin)
        db.session.commit()
        print("✅ 默认管理员账户已创建: yunxiafei / xu123654")


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000, debug=False)