264 lines
8.0 KiB
Python
264 lines
8.0 KiB
Python
"""
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用户认证服务
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"""
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import re
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from typing import Optional, Dict, Any
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from datetime import datetime
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from python_core.models.user import (
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User, LoginRequest, RegisterRequest, AuthResponse,
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hash_password, verify_password
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)
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from python_core.services.user_storage import user_storage
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from python_core.utils.jwt_auth import generate_access_token, verify_access_token
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from python_core.utils.logger import logger
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class AuthService:
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"""用户认证服务"""
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def __init__(self):
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self.user_storage = user_storage
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logger.info("AuthService initialized")
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def register(self, request: RegisterRequest) -> AuthResponse:
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"""
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用户注册
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Args:
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request: 注册请求数据
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Returns:
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AuthResponse: 注册响应
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"""
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try:
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# 验证输入数据
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validation_error = self._validate_register_request(request)
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if validation_error:
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return AuthResponse(
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success=False,
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message=validation_error
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)
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# 密码哈希
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password_hash = hash_password(request.password)
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# 创建用户
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user = self.user_storage.create_user(
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username=request.username,
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email=request.email,
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password_hash=password_hash,
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display_name=request.display_name
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)
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# 生成JWT token
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token_info = generate_access_token(
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user_id=user.id,
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username=user.username,
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email=user.email
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)
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logger.info(f"User registered successfully: {user.username}")
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return AuthResponse(
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success=True,
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message="注册成功",
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user=user.to_safe_dict(),
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token=token_info["token"],
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expires_at=token_info["expires_at"]
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)
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except ValueError as e:
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logger.warning(f"Registration failed: {e}")
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return AuthResponse(
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success=False,
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message=str(e)
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)
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except Exception as e:
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logger.error(f"Registration error: {e}")
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return AuthResponse(
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success=False,
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message="注册失败，请稍后重试"
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)
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def login(self, request: LoginRequest) -> AuthResponse:
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"""
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用户登录
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Args:
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request: 登录请求数据
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Returns:
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AuthResponse: 登录响应
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"""
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try:
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# 验证输入数据
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validation_error = self._validate_login_request(request)
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if validation_error:
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return AuthResponse(
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success=False,
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message=validation_error
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)
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# 查找用户
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user = self.user_storage.get_user_by_username_or_email(request.username_or_email)
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if not user:
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return AuthResponse(
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success=False,
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message="用户名或密码错误"
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)
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# 检查用户状态
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if not user.is_active:
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return AuthResponse(
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success=False,
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message="账户已被禁用"
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)
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# 验证密码
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if not verify_password(request.password, user.password_hash):
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return AuthResponse(
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success=False,
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message="用户名或密码错误"
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)
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# 更新最后登录时间
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user.update_last_login()
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self.user_storage.update_user(user)
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# 生成JWT token
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token_info = generate_access_token(
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user_id=user.id,
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username=user.username,
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email=user.email
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)
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logger.info(f"User logged in successfully: {user.username}")
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return AuthResponse(
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success=True,
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message="登录成功",
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user=user.to_safe_dict(),
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token=token_info["token"],
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expires_at=token_info["expires_at"]
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)
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except Exception as e:
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logger.error(f"Login error: {e}")
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return AuthResponse(
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success=False,
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message="登录失败，请稍后重试"
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)
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def verify_token(self, token: str) -> Optional[Dict[str, Any]]:
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"""
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验证JWT token
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Args:
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token: JWT token字符串
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Returns:
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Dict: 用户信息，验证失败返回None
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"""
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try:
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# 验证token
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payload = verify_access_token(token)
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if not payload:
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return None
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# 获取用户信息
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user = self.user_storage.get_user_by_id(payload["user_id"])
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if not user or not user.is_active:
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return None
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return {
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"user_id": user.id,
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"username": user.username,
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"email": user.email,
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"display_name": user.display_name,
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"avatar_url": user.avatar_url,
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"last_login": user.last_login
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}
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except Exception as e:
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logger.error(f"Token verification error: {e}")
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return None
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def get_current_user(self, token: str) -> Optional[User]:
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"""
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根据token获取当前用户
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Args:
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token: JWT token字符串
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Returns:
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User: 用户对象，失败返回None
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"""
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try:
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payload = verify_access_token(token)
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if not payload:
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return None
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user = self.user_storage.get_user_by_id(payload["user_id"])
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if not user or not user.is_active:
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return None
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return user
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except Exception as e:
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logger.error(f"Get current user error: {e}")
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return None
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def _validate_register_request(self, request: RegisterRequest) -> Optional[str]:
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"""验证注册请求数据"""
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# 验证用户名
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if not request.username or len(request.username.strip()) < 3:
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return "用户名至少需要3个字符"
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if len(request.username) > 50:
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return "用户名不能超过50个字符"
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if not re.match(r'^[a-zA-Z0-9_]+$', request.username):
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return "用户名只能包含字母、数字和下划线"
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# 验证邮箱
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if not request.email:
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return "邮箱地址不能为空"
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email_pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
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if not re.match(email_pattern, request.email):
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return "邮箱地址格式不正确"
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# 验证密码
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if not request.password:
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return "密码不能为空"
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if len(request.password) < 6:
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return "密码至少需要6个字符"
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if len(request.password) > 100:
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return "密码不能超过100个字符"
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# 验证显示名称
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if request.display_name and len(request.display_name) > 100:
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return "显示名称不能超过100个字符"
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return None
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def _validate_login_request(self, request: LoginRequest) -> Optional[str]:
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"""验证登录请求数据"""
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if not request.username_or_email:
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return "用户名或邮箱不能为空"
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if not request.password:
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return "密码不能为空"
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return None
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# 创建全局认证服务实例
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auth_service = AuthService()
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