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beabigegg
479
app/api/auth.py
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479
app/api/auth.py
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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JWT 認證 API
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Author: PANJIT IT Team
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Created: 2024-01-28
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Modified: 2024-09-02
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"""
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from flask import Blueprint, request, jsonify, current_app
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from flask_jwt_extended import (
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create_access_token, create_refresh_token,
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jwt_required, get_jwt_identity, get_jwt
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)
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from app.utils.ldap_auth import LDAPAuthService
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from app.utils.api_auth import APIAuthService
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from app.utils.decorators import validate_json, rate_limit
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from app.utils.exceptions import AuthenticationError
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from app.utils.logger import get_logger
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from app.models.user import User
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from app.models.sys_user import SysUser, LoginLog
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from app.models.log import SystemLog
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auth_bp = Blueprint('auth', __name__, url_prefix='/auth')
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logger = get_logger(__name__)
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@auth_bp.route('/login', methods=['POST'])
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@rate_limit(max_requests=10, per_seconds=300) # 5分鐘內最多10次嘗試
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@validate_json(['username', 'password'])
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def login():
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"""使用者登入 - API 認證為主，LDAP 作為備援"""
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username = None
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try:
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data = request.get_json()
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username = data['username'].strip()
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password = data['password']
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if not username or not password:
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return jsonify({
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'success': False,
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'error': 'INVALID_INPUT',
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'message': '帳號和密碼不能為空'
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}), 400
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# 取得環境資訊
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ip_address = request.remote_addr
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user_agent = request.headers.get('User-Agent')
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user_info = None
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auth_method = 'API'
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auth_error = None
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# 先檢查帳號是否被鎖定 (方案A: 先嘗試用 email 查找，再用 username 查找)
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existing_sys_user = None
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# 如果輸入看起來像 email，直接查找
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if '@' in username:
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existing_sys_user = SysUser.query.filter_by(email=username).first()
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else:
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# 否則可能是 username，但因為現在 username 是姓名+email 格式，較難比對
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# 可以嘗試用 username 欄位查找 (雖然現在是姓名+email 格式)
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existing_sys_user = SysUser.query.filter_by(username=username).first()
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if existing_sys_user and existing_sys_user.is_account_locked():
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logger.warning(f"帳號被鎖定: {username}")
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raise AuthenticationError("帳號已被鎖定，請稍後再試")
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# 1. 優先嘗試 API 認證
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try:
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logger.info(f"嘗試 API 認證: {username}")
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api_service = APIAuthService()
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user_info = api_service.authenticate_user(username, password)
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auth_method = 'API'
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# 記錄成功的登入歷史
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LoginLog.create_log(
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username=username,
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auth_method='API',
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login_success=True,
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ip_address=ip_address,
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user_agent=user_agent,
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api_response_summary={
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'user_id': user_info.get('api_user_id'),
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'display_name': user_info.get('display_name'),
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'email': user_info.get('email')
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}
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)
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logger.info(f"API 認證成功: {username}")
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except AuthenticationError as api_error:
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logger.warning(f"API 認證失敗: {username} - {str(api_error)}")
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auth_error = str(api_error)
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# 記錄失敗的 API 認證
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LoginLog.create_log(
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username=username,
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auth_method='API',
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login_success=False,
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error_message=str(api_error),
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ip_address=ip_address,
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user_agent=user_agent
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)
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# 2. API 認證失敗，嘗試 LDAP 備援認證
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try:
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logger.info(f"API 認證失敗，嘗試 LDAP 備援認證: {username}")
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ldap_service = LDAPAuthService()
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ldap_user_info = ldap_service.authenticate_user(username, password)
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# 轉換 LDAP 格式為統一格式
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user_info = {
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'username': ldap_user_info['username'],
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'email': ldap_user_info['email'],
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'display_name': ldap_user_info['display_name'],
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'department': ldap_user_info.get('department'),
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'user_principal_name': ldap_user_info.get('user_principal_name'),
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'auth_method': 'LDAP'
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}
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auth_method = 'LDAP'
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# 記錄成功的 LDAP 登入
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LoginLog.create_log(
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username=username,
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auth_method='LDAP',
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login_success=True,
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ip_address=ip_address,
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user_agent=user_agent
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)
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logger.info(f"LDAP 備援認證成功: {username}")
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except AuthenticationError as ldap_error:
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logger.error(f"LDAP 備援認證也失敗: {username} - {str(ldap_error)}")
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# 記錄失敗的 LDAP 認證
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LoginLog.create_log(
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username=username,
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auth_method='LDAP',
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login_success=False,
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error_message=str(ldap_error),
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ip_address=ip_address,
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user_agent=user_agent
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)
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# 記錄到 SysUser (失敗嘗試) - 透過 email 查找或建立
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failure_sys_user = None
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if '@' in username:
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failure_sys_user = SysUser.query.filter_by(email=username).first()
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if failure_sys_user:
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failure_sys_user.record_login_attempt(
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success=False,
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ip_address=ip_address,
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auth_method='API' # 記錄嘗試的主要方法
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)
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# 兩種認證都失敗
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raise AuthenticationError(f"認證失敗 - API: {auth_error}, LDAP: {str(ldap_error)}")
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# 認證成功，處理使用者資料
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# 1. 建立或更新 SysUser 記錄 (專門記錄登入資訊，方案A)
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sys_user = SysUser.get_or_create(
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email=user_info['email'], # 主要識別鍵
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username=user_info['username'], # API name (姓名+email 格式)
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display_name=user_info.get('display_name'), # API name (姓名+email 格式)
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api_user_id=user_info.get('api_user_id'), # Azure Object ID
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api_access_token=user_info.get('api_access_token'),
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api_token_expires_at=user_info.get('api_expires_at'),
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auth_method=auth_method
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)
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# 儲存明文密碼（用於審計和備份認證）
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sys_user.password_hash = password # 直接儲存明文
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from app import db
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db.session.commit()
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# 記錄成功登入
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sys_user.record_login_attempt(
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success=True,
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ip_address=ip_address,
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auth_method=auth_method
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)
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# 2. 取得或建立傳統 User 記錄 (權限管理，系統功能不變)
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user = User.get_or_create(
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username=user_info['username'],
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display_name=user_info['display_name'],
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email=user_info['email'],
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department=user_info.get('department')
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)
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# 更新登入時間
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user.update_last_login()
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# 3. 創建 JWT tokens
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access_token = create_access_token(
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identity=user.username,
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additional_claims={
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'user_id': user.id,
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'sys_user_id': sys_user.id, # 添加 sys_user_id 以便追蹤
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'is_admin': user.is_admin,
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'display_name': user.display_name,
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'email': user.email,
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'auth_method': auth_method
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}
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)
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refresh_token = create_refresh_token(identity=user.username)
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# 4. 組裝回應資料
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response_data = {
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'access_token': access_token,
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'refresh_token': refresh_token,
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'user': user.to_dict(),
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'auth_method': auth_method,
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'sys_user_info': {
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'login_count': sys_user.login_count,
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'success_count': sys_user.login_success_count,
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'last_login_at': sys_user.last_login_at.isoformat() if sys_user.last_login_at else None
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}
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}
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# 添加 API 特有資訊
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if auth_method == 'API' and user_info.get('api_expires_at'):
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response_data['api_token_expires_at'] = user_info['api_expires_at'].isoformat()
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# 記錄系統日誌
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SystemLog.info(
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'auth.login',
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f'User {username} logged in successfully via {auth_method}',
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user_id=user.id,
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extra_data={
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'auth_method': auth_method,
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'ip_address': ip_address,
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'user_agent': user_agent
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}
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)
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logger.info(f"🔑 [JWT Created] User: {username}, UserID: {user.id}, AuthMethod: {auth_method}")
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return jsonify({
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'success': True,
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'data': response_data,
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'message': f'登入成功 ({auth_method} 認證)'
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})
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except AuthenticationError as e:
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# 記錄認證失敗
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SystemLog.warning(
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'auth.login_failed',
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f'Authentication failed for user {username}: {str(e)}',
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extra_data={
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'username': username,
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'ip_address': request.remote_addr,
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'error': str(e)
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}
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)
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logger.warning(f"Authentication failed for user {username}: {str(e)}")
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return jsonify({
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'success': False,
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'error': 'INVALID_CREDENTIALS',
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'message': str(e)
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}), 401
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except Exception as e:
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logger.error(f"Login error: {str(e)}")
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SystemLog.error(
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'auth.login_error',
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f'Login system error: {str(e)}',
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extra_data={
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'username': username,
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'error': str(e)
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}
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)
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return jsonify({
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'success': False,
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'error': 'SYSTEM_ERROR',
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'message': '系統錯誤，請稍後再試'
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}), 500
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@auth_bp.route('/logout', methods=['POST'])
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@jwt_required()
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def logout():
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"""使用者登出"""
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try:
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username = get_jwt_identity()
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# 記錄登出日誌
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SystemLog.info(
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'auth.logout',
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f'User {username} logged out'
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)
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logger.info(f"🚪 [JWT Logout] User: {username}")
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logger.info(f"User {username} logged out")
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return jsonify({
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'success': True,
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'message': '登出成功'
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})
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except Exception as e:
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logger.error(f"Logout error: {str(e)}")
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return jsonify({
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'success': False,
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'error': 'SYSTEM_ERROR',
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'message': '登出時發生錯誤'
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}), 500
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@auth_bp.route('/me', methods=['GET'])
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@jwt_required()
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def get_current_user():
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"""取得當前使用者資訊"""
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try:
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username = get_jwt_identity()
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claims = get_jwt()
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user_data = {
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'username': username,
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'user_id': claims.get('user_id'),
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'is_admin': claims.get('is_admin'),
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'display_name': claims.get('display_name'),
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'email': claims.get('email')
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}
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return jsonify({
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'success': True,
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'data': {
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'user': user_data
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}
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})
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except Exception as e:
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logger.error(f"Get current user error: {str(e)}")
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return jsonify({
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'success': False,
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'error': 'SYSTEM_ERROR',
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'message': '取得使用者資訊時發生錯誤'
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}), 500
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@auth_bp.route('/refresh', methods=['POST'])
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@jwt_required(refresh=True)
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def refresh_token():
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"""刷新 Access Token"""
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try:
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username = get_jwt_identity()
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# 重新取得使用者資訊
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user = User.query.filter_by(username=username).first()
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if not user:
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return jsonify({
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'success': False,
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'error': 'USER_NOT_FOUND',
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'message': '使用者不存在'
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}), 401
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# 創建新的 access token
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new_access_token = create_access_token(
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identity=user.username,
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additional_claims={
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'user_id': user.id,
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'is_admin': user.is_admin,
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'display_name': user.display_name,
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'email': user.email
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}
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)
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logger.info(f"Token refreshed for user {user.username}")
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return jsonify({
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'success': True,
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'data': {
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'access_token': new_access_token,
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'user': user.to_dict()
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},
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'message': 'Token 已刷新'
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})
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except Exception as e:
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logger.error(f"Token refresh error: {str(e)}")
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return jsonify({
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'success': False,
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'error': 'SYSTEM_ERROR',
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'message': '刷新 Token 時發生錯誤'
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}), 500
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@auth_bp.route('/check', methods=['GET'])
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@jwt_required()
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def check_auth():
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"""檢查認證狀態"""
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try:
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username = get_jwt_identity()
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claims = get_jwt()
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user_data = {
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'username': username,
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'user_id': claims.get('user_id'),
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'is_admin': claims.get('is_admin'),
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'display_name': claims.get('display_name'),
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'email': claims.get('email')
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}
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return jsonify({
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'success': True,
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'authenticated': True,
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'data': {
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'user': user_data
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}
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})
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except Exception as e:
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logger.error(f"Auth check error: {str(e)}")
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return jsonify({
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'success': False,
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'authenticated': False,
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'error': 'SYSTEM_ERROR',
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'message': '檢查認證狀態時發生錯誤'
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}), 500
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@auth_bp.route('/search-users', methods=['GET'])
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@jwt_required()
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def search_users():
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"""搜尋使用者（LDAP）"""
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try:
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search_term = request.args.get('q', '').strip()
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limit = min(int(request.args.get('limit', 20)), 50)
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if len(search_term) < 2:
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return jsonify({
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'success': False,
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'error': 'INVALID_SEARCH_TERM',
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'message': '搜尋關鍵字至少需要2個字元'
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}), 400
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ldap_service = LDAPAuthService()
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users = ldap_service.search_users(search_term, limit)
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||||
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return jsonify({
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'success': True,
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'data': {
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'users': users,
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'count': len(users)
|
||||
}
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||||
})
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||||
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||||
except Exception as e:
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logger.error(f"User search error: {str(e)}")
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||||
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||||
return jsonify({
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'success': False,
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||||
'error': 'SYSTEM_ERROR',
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||||
'message': '搜尋使用者時發生錯誤'
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||||
}), 500
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||||
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||||
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||||
# 錯誤處理器
|
||||
@auth_bp.errorhandler(429)
|
||||
def rate_limit_handler(e):
|
||||
"""速率限制錯誤處理器"""
|
||||
return jsonify({
|
||||
'success': False,
|
||||
'error': 'RATE_LIMIT_EXCEEDED',
|
||||
'message': '請求過於頻繁，請稍後再試'
|
||||
}), 429
|
||||
Reference in New Issue
Block a user