From a86e8f762f259dd88b1fa418d9e7f6e7d884de9b Mon Sep 17 00:00:00 2001
From: 2977094657 <2977094657@qq.com>
Date: Tue, 19 Aug 2025 17:10:32 +0800
Subject: [PATCH] =?UTF-8?q?feat(detection):=20=E6=B7=BB=E5=8A=A0=E5=BD=93?=
 =?UTF-8?q?=E5=89=8D=E7=99=BB=E5=BD=95=E8=B4=A6=E5=8F=B7=E6=A3=80=E6=B5=8B?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/assets/css/tailwind.css            |  28 ++
 frontend/composables/useApi.js              |  20 +-
 frontend/pages/detection-result.vue         |  99 +++++-
 frontend/stores/app.js                      |   8 +
 src/wechat_decrypt_tool/api.py              |  29 +-
 src/wechat_decrypt_tool/wechat_detection.py | 332 +++++++++++++++++++-
 6 files changed, 488 insertions(+), 28 deletions(-)

diff --git a/frontend/assets/css/tailwind.css b/frontend/assets/css/tailwind.css
index 0e20b4f..b7335d6 100644
--- a/frontend/assets/css/tailwind.css
+++ b/frontend/assets/css/tailwind.css
@@ -39,6 +39,9 @@
     /* 边框颜色 */
     --border-color: #e7e7e7;
     --border-light: #f4f4f4;
+
+    /* 统一消息圆角（聊天所有消息共用） */
+    --message-radius: 4px;
   }
 
   body {
@@ -52,6 +55,31 @@
 
 /* 微信风格组件样式 */
 @layer components {
+  /* 聊天气泡尾巴（左右），与高度 42px 居中对齐 */
+  .bubble-tail-l, .bubble-tail-r { position: relative; }
+  .bubble-tail-l::after {
+    content: '';
+    position: absolute;
+    left: -4px;
+    top: 12px; /* 36px 中线 18px，减去 6px ≈ 12px */
+    width: 12px; height: 12px;
+    background: #FFFFFF;
+    transform: rotate(45deg);
+    border-radius: 2px;
+  }
+  .bubble-tail-r::after {
+    content: '';
+    position: absolute;
+    right: -4px;
+    top: 12px;
+    width: 12px; height: 12px;
+    background: #95EC69;
+    transform: rotate(45deg);
+    border-radius: 2px;
+  }
+  /* 统一的消息圆角工具类 */
+  .msg-radius { border-radius: var(--message-radius); }
+  .msg-bubble { @apply leading-normal break-words text-pretty; border-radius: var(--message-radius); }
   /* 按钮样式 */
   .btn {
     @apply px-6 py-3 rounded-full font-medium transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 transform active:scale-95;
diff --git a/frontend/composables/useApi.js b/frontend/composables/useApi.js
index 011945c..64ac39f 100644
--- a/frontend/composables/useApi.js
+++ b/frontend/composables/useApi.js
@@ -27,8 +27,23 @@ export const useApi = () => {
   }
   
   // 微信检测API
-  const detectWechat = async () => {
-    return await request('/wechat-detection')
+  const detectWechat = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.data_root_path) {
+      query.set('data_root_path', params.data_root_path)
+    }
+    const url = '/wechat-detection' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+  
+  // 检测当前登录账号API
+  const detectCurrentAccount = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.data_root_path) {
+      query.set('data_root_path', params.data_root_path)
+    }
+    const url = '/current-account' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
   }
   
   // 数据库解密API
@@ -46,6 +61,7 @@ export const useApi = () => {
   
   return {
     detectWechat,
+    detectCurrentAccount,
     decryptDatabase,
     healthCheck
   }
diff --git a/frontend/pages/detection-result.vue b/frontend/pages/detection-result.vue
index c9901bb..4d7eccd 100644
--- a/frontend/pages/detection-result.vue
+++ b/frontend/pages/detection-result.vue
@@ -91,7 +91,7 @@
                 </div>
                 <div class="w-12 h-12 bg-[#10AEEF]/10 rounded-lg flex items-center justify-center">
                   <svg class="w-6 h-6 text-[#10AEEF]" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"/>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283-.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"/>
                   </svg>
                 </div>
                 </div>
@@ -110,17 +110,19 @@
                 </div>
                 </div>
               </div>
+              
             </div>
             
             <!-- 账户列表 -->
-          <div v-if="detectionResult.data?.accounts && detectionResult.data.accounts.length > 0" 
+          <div v-if="detectionResult.data?.accounts && detectionResult.data.accounts.length > 0"
             class="bg-white rounded-2xl border border-[#EDEDED] overflow-hidden">
             <div class="p-4 border-b border-[#EDEDED] bg-gray-50">
               <h3 class="text-base font-semibold text-[#000000e6]">微信账户详情</h3>
             </div>
             <div class="divide-y divide-[#EDEDED] max-h-64 overflow-y-auto">
-              <div v-for="(account, index) in detectionResult.data.accounts" :key="index" 
-                class="p-4 hover:bg-gray-50 transition-all duration-200">
+              <!-- 将当前登录账号放在第一位 -->
+              <div v-for="(account, index) in sortedAccounts" :key="index"
+                :class="['p-4 hover:bg-gray-50 transition-all duration-200', isCurrentAccount(account.account_name) ? 'bg-[#07C160]/5' : '']">
                 <div class="flex items-center justify-between">
                   <div class="flex-1">
                     <div class="flex items-center">
@@ -128,7 +130,17 @@
                         <span class="text-[#07C160] font-bold text-lg">{{ account.account_name?.charAt(0)?.toUpperCase() || 'U' }}</span>
                       </div>
                       <div>
-                        <p class="text-lg font-medium text-[#000000e6]">{{ account.account_name || '未知账户' }}</p>
+                        <div class="flex items-center">
+                          <p class="text-lg font-medium text-[#000000e6]">{{ account.account_name || '未知账户' }}</p>
+                          <!-- 当前登录账号标识 -->
+                          <span v-if="isCurrentAccount(account.account_name)"
+                            class="ml-2 inline-flex items-center px-2 py-1 bg-[#07C160]/10 text-[#07C160] rounded text-xs font-medium">
+                            <svg class="w-3 h-3 mr-1" fill="currentColor" viewBox="0 0 20 20">
+                              <path fill-rule="evenodd" d="M5 9V7a5 5 0 0110 0v2a2 2 0 012 2v5a2 2 0 01-2 2H5a2 2 0 01-2-2v-5a2 2 0 012-2zm8-2v2H7V7a3 3 0 016 0z" clip-rule="evenodd"/>
+                            </svg>
+                            当前登录
+                          </span>
+                        </div>
                         <div class="flex items-center mt-1 space-x-4 text-sm text-[#7F7F7F]">
                           <span class="flex items-center">
                             <svg class="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -146,7 +158,7 @@
                       </div>
                     </div>
                   </div>
-                  <button @click="goToDecrypt(account)" 
+                  <button @click="goToDecrypt(account)"
                     class="inline-flex items-center px-4 py-2 bg-[#07C160] text-white rounded-lg font-medium hover:bg-[#06AD56] transition-all duration-200 text-sm">
                     <svg class="w-4 h-4 mr-1.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                       <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 11V7a4 4 0 118 0m-4 8v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2z"/>
@@ -192,14 +204,35 @@
 </template>
 
 <script setup>
-import { ref, onMounted } from 'vue'
+import { ref, onMounted, computed } from 'vue'
 import { useApi } from '~/composables/useApi'
+import { useAppStore } from '~/stores/app'
 
-const { detectWechat } = useApi()
+const { detectWechat, detectCurrentAccount } = useApi()
+const appStore = useAppStore()
 const loading = ref(false)
 const detectionResult = ref(null)
 const customPath = ref('')
 
+// 计算属性：将当前登录账号排在第一位
+const sortedAccounts = computed(() => {
+  if (!detectionResult.value?.data?.accounts) return []
+  
+  const accounts = [...detectionResult.value.data.accounts]
+  const currentAccountName = detectionResult.value.data?.current_account?.current_account
+  
+  if (!currentAccountName) return accounts
+  
+  // 将当前登录账号移到第一位
+  const sorted = accounts.sort((a, b) => {
+    if (a.account_name === currentAccountName) return -1
+    if (b.account_name === currentAccountName) return 1
+    return 0
+  })
+  
+  return sorted
+})
+
 // 开始检测
 const startDetection = async () => {
   loading.value = true
@@ -209,8 +242,28 @@ const startDetection = async () => {
     if (customPath.value && customPath.value.trim()) {
       params.data_root_path = customPath.value.trim()
     }
+    
+    // 检测微信安装信息
     const result = await detectWechat(params)
     detectionResult.value = result
+    
+    // 如果检测成功，同时检测当前登录账号
+    if (result.status === 'success') {
+      try {
+        const currentAccountResult = await detectCurrentAccount(params)
+        if (currentAccountResult.status === 'success') {
+          // 保存当前账号信息到状态管理
+          appStore.setCurrentAccount(currentAccountResult.data)
+          
+          // 同时更新检测结果中的当前账号信息
+          if (detectionResult.value.data) {
+            detectionResult.value.data.current_account = currentAccountResult.data
+          }
+        }
+      } catch (accountErr) {
+        console.error('检测当前登录账号失败:', accountErr)
+      }
+    }
   } catch (err) {
     console.error('检测过程中发生错误:', err)
     detectionResult.value = {
@@ -237,6 +290,36 @@ const goToDecrypt = (account) => {
   navigateTo('/decrypt')
 }
 
+// 判断是否为当前登录账号
+const isCurrentAccount = (accountName) => {
+  if (!detectionResult.value?.data?.current_account) {
+    return false
+  }
+  return detectionResult.value.data.current_account.current_account === accountName
+}
+
+// 获取当前登录账号信息
+const getCurrentAccountInfo = () => {
+  return detectionResult.value?.data?.current_account
+}
+
+// 格式化时间显示
+const formatTime = (timeString) => {
+  if (!timeString) return ''
+  try {
+    const date = new Date(timeString)
+    return date.toLocaleString('zh-CN', {
+      year: 'numeric',
+      month: '2-digit',
+      day: '2-digit',
+      hour: '2-digit',
+      minute: '2-digit'
+    })
+  } catch {
+    return timeString
+  }
+}
+
 // 页面加载时自动检测
 onMounted(() => {
   startDetection()
diff --git a/frontend/stores/app.js b/frontend/stores/app.js
index f87ccfa..1de1bfc 100644
--- a/frontend/stores/app.js
+++ b/frontend/stores/app.js
@@ -9,6 +9,9 @@ export const useAppStore = defineStore('app', {
     // 最近的检测结果
     lastDetectionResult: null,
     
+    // 当前登录账号信息
+    currentAccount: null,
+    
     // 全局加载状态
     globalLoading: false,
     
@@ -28,6 +31,11 @@ export const useAppStore = defineStore('app', {
       this.lastDetectionResult = result
     },
     
+    // 设置当前登录账号
+    setCurrentAccount(account) {
+      this.currentAccount = account
+    },
+    
     // 设置全局加载状态
     setGlobalLoading(loading) {
       this.globalLoading = loading
diff --git a/src/wechat_decrypt_tool/api.py b/src/wechat_decrypt_tool/api.py
index 2a5ba87..50db2c2 100644
--- a/src/wechat_decrypt_tool/api.py
+++ b/src/wechat_decrypt_tool/api.py
@@ -277,8 +277,12 @@ async def detect_wechat_detailed(data_root_path: Optional[str] = None):
     """详细检测微信安装信息，包括版本、路径、消息目录等。"""
     logger.info("开始执行微信检测")
     try:
-        from .wechat_detection import detect_wechat_installation
+        from .wechat_detection import detect_wechat_installation, detect_current_logged_in_account
         info = detect_wechat_installation(data_root_path=data_root_path)
+        
+        # 检测当前登录账号
+        current_account_info = detect_current_logged_in_account(data_root_path)
+        info['current_account'] = current_account_info
 
         # 添加一些统计信息
         stats = {
@@ -306,6 +310,29 @@ async def detect_wechat_detailed(data_root_path: Optional[str] = None):
         }
 
 
+@app.get("/api/current-account", summary="检测当前登录账号")
+async def detect_current_account(data_root_path: Optional[str] = None):
+    """检测当前登录的微信账号"""
+    logger.info("开始检测当前登录账号")
+    try:
+        from .wechat_detection import detect_current_logged_in_account
+        result = detect_current_logged_in_account(data_root_path)
+        
+        logger.info(f"当前账号检测完成: {result.get('message', '无结果')}")
+        
+        return {
+            'status': 'success',
+            'data': result
+        }
+    except Exception as e:
+        logger.error(f"当前账号检测失败: {str(e)}")
+        return {
+            'status': 'error',
+            'error': str(e),
+            'data': None
+        }
+
+
 
 
 
diff --git a/src/wechat_decrypt_tool/wechat_detection.py b/src/wechat_decrypt_tool/wechat_detection.py
index c336f3f..ced8056 100644
--- a/src/wechat_decrypt_tool/wechat_detection.py
+++ b/src/wechat_decrypt_tool/wechat_detection.py
@@ -11,6 +11,7 @@ import ctypes
 from pathlib import Path
 from typing import List, Dict, Any, Union
 from ctypes import wintypes
+from datetime import datetime
 
 
 
@@ -421,6 +422,135 @@ def detect_wechat_accounts_from_backup(backup_base_path: str = None) -> List[Dic
     return accounts
 
 
+def _resolve_login_paths_from_base(provided_path: str) -> Dict[str, str]:
+    """
+    根据用户提供的路径推断 base_path 和 login_dir。
+
+    兼容三种传入：
+    - 直接传 xwechat_files 根目录
+    - 传 xwechat_files/all_users
+    - 传 xwechat_files/all_users/login
+    """
+    base_path = provided_path
+    login_dir = os.path.join(provided_path, "all_users", "login")
+
+    try:
+        norm = os.path.normpath(provided_path)
+        last = os.path.basename(norm).lower()
+        parent = os.path.dirname(norm)
+        parent_last = os.path.basename(parent).lower() if parent else ""
+
+        if last == "login" and parent_last == "all_users":
+            # .../xwechat_files/all_users/login -> base_path 为 xwechat_files
+            base_path = os.path.dirname(parent)
+            login_dir = norm
+        elif last == "all_users":
+            # .../xwechat_files/all_users -> login_dir 追加 login
+            base_path = os.path.dirname(norm)
+            login_dir = os.path.join(norm, "login")
+        else:
+            # 认为传的是 xwechat_files 根
+            base_path = norm
+            login_dir = os.path.join(norm, "all_users", "login")
+    except Exception:
+        # 兜底：保持初始推断
+        pass
+
+    return {"base_path": base_path, "login_dir": login_dir}
+
+
+def detect_wechat_accounts_from_login(login_base_path: str = None) -> List[Dict[str, Any]]:
+    """
+    通过登录信息目录检测微信账号，并映射到实际数据目录。
+
+    Args:
+        login_base_path: 可选的微信数据根目录。
+
+    Returns:
+        账号信息列表（与 Backup 检测返回结构一致）
+    """
+    accounts: List[Dict[str, Any]] = []
+
+    # 若用户提供路径，则优先按该路径推断
+    if login_base_path:
+        paths = _resolve_login_paths_from_base(login_base_path)
+        base_path = paths["base_path"]
+        login_dir = paths["login_dir"]
+
+        if not os.path.exists(login_dir):
+            return accounts
+    else:
+        # 自动检测：遍历候选根目录，寻找登录信息目录
+        base_path = None
+        login_dir = None
+        detected_dirs = auto_detect_wechat_data_dirs()
+        for detected_dir in detected_dirs:
+            try:
+                test_login = os.path.join(detected_dir, "all_users", "login")
+                if os.path.exists(test_login):
+                    base_path = detected_dir
+                    login_dir = test_login
+                    break
+
+                # 也检查一层子目录
+                for sub in os.listdir(detected_dir):
+                    sub_path = os.path.join(detected_dir, sub)
+                    if not os.path.isdir(sub_path):
+                        continue
+                    test_login = os.path.join(sub_path, "all_users", "login")
+                    if os.path.exists(test_login):
+                        base_path = sub_path
+                        login_dir = test_login
+                        break
+                if base_path:
+                    break
+            except (PermissionError, OSError):
+                continue
+
+        if not base_path or not login_dir:
+            return accounts
+
+    # 枚举 login 目录下的子项，每个子项代表一个账号标识（可能是文件或文件夹）
+    try:
+        for item in os.listdir(login_dir):
+            account_name = item
+            account_login_item_path = os.path.join(login_dir, item)
+            # 无论是文件还是文件夹，都视为一个账号标识
+            if not os.path.exists(account_login_item_path):
+                continue
+
+            # 在 base_path 下查找以 {account_name}_ 开头的数据目录（与 Backup 规则一致）
+            data_dir = None
+            try:
+                for data_item in os.listdir(base_path):
+                    data_item_path = os.path.join(base_path, data_item)
+                    if (
+                        os.path.isdir(data_item_path)
+                        and data_item.startswith(f"{account_name}_")
+                        and data_item not in ["Backup", "all_users"]
+                    ):
+                        data_dir = data_item_path
+                        break
+            except (PermissionError, OSError):
+                pass
+
+            databases = collect_account_databases(data_dir, account_name) if data_dir else []
+
+            accounts.append(
+                {
+                    "account_name": account_name,
+                    "backup_dir": None,
+                    "data_dir": data_dir,
+                    "databases": databases,
+                    "database_count": len(databases),
+                }
+            )
+    except (PermissionError, OSError):
+        # 无权限访问时返回已收集的账号
+        return accounts
+
+    return accounts
+
 def collect_account_databases(data_dir: str, account_name: str) -> List[Dict[str, Any]]:
     """
     收集指定账号数据目录下的所有数据库文件
@@ -474,7 +604,7 @@ def collect_account_databases(data_dir: str, account_name: str) -> List[Dict[str
     return databases
 
 
-def detect_wechat_installation() -> Dict[str, Any]:
+def detect_wechat_installation(data_root_path: str | None = None) -> Dict[str, Any]:
     """
     检测微信安装情况 - 改进的多账户检测逻辑
     """
@@ -528,47 +658,92 @@ def detect_wechat_installation() -> Dict[str, Any]:
     if not result["is_running"]:
         result["detection_methods"].append("未检测到微信进程")
 
-    # 2. 使用新的账号检测逻辑
-    result["detection_methods"].append("多账户检测")
+    # 2. 使用新的账号检测逻辑：同时支持 Backup 与登录信息目录，并合并结果
+    result["detection_methods"].append("多账户检测（多来源合并）")
     try:
-        # 检测指定路径下的微信账号
-        accounts = detect_wechat_accounts_from_backup()
+        # 支持前端兜底路径：若提供 data_root_path，则两种方式都以该路径为基准
+        accounts_from_backup = detect_wechat_accounts_from_backup(
+            backup_base_path=data_root_path
+        )
+        accounts_from_login = detect_wechat_accounts_from_login(
+            login_base_path=data_root_path
+        )
+
+        # 合并账号：按 account_name 去重，优先保留信息更完整者
+        account_map: Dict[str, Dict[str, Any]] = {}
+
+        def _merge_account(acc: Dict[str, Any]):
+            name = acc.get("account_name")
+            if not name:
+                return
+            if name not in account_map:
+                account_map[name] = {
+                    "account_name": name,
+                    "backup_dir": acc.get("backup_dir"),
+                    "data_dir": acc.get("data_dir"),
+                    "databases": list(acc.get("databases", [])),
+                    "database_count": int(acc.get("database_count", 0)),
+                }
+            else:
+                existing = account_map[name]
+                if not existing.get("backup_dir") and acc.get("backup_dir"):
+                    existing["backup_dir"] = acc.get("backup_dir")
+                if not existing.get("data_dir") and acc.get("data_dir"):
+                    existing["data_dir"] = acc.get("data_dir")
+                # 合并数据库（按 path 去重）
+                seen_paths = {d.get("path") for d in existing.get("databases", [])}
+                for db in acc.get("databases", []):
+                    if db.get("path") not in seen_paths:
+                        existing.setdefault("databases", []).append(db)
+                        seen_paths.add(db.get("path"))
+                existing["database_count"] = len(existing.get("databases", []))
+
+        for acc in accounts_from_backup:
+            _merge_account(acc)
+        for acc in accounts_from_login:
+            _merge_account(acc)
+
+        accounts = list(account_map.values())
         result["accounts"] = accounts
         result["total_accounts"] = len(accounts)
 
         # 统计总数据库数量
-        total_db_count = sum(account["database_count"] for account in accounts)
+        total_db_count = sum(account.get("database_count", 0) for account in accounts)
         result["total_databases"] = total_db_count
 
         if accounts:
-            result["detection_methods"].append(f"在指定路径检测到 {len(accounts)} 个微信账户")
+            result["detection_methods"].append(
+                f"检测到 {len(accounts)} 个微信账户（已合并两种来源）"
+            )
             result["detection_methods"].append(f"总计 {total_db_count} 个数据库文件")
 
             # 为每个账户添加详细信息
             for account in accounts:
-                account_name = account["account_name"]
-                db_count = account["database_count"]
-                data_dir_status = "已找到" if account["data_dir"] else "未找到"
-                result["detection_methods"].append(f"账户 {account_name}: {db_count} 个数据库, 数据目录{data_dir_status}")
+                account_name = account.get("account_name")
+                db_count = account.get("database_count", 0)
+                data_dir_status = "已找到" if account.get("data_dir") else "未找到"
+                result["detection_methods"].append(
+                    f"账户 {account_name}: {db_count} 个数据库, 数据目录{data_dir_status}"
+                )
         else:
-            result["detection_methods"].append("未在指定路径检测到微信账户")
+            result["detection_methods"].append("未检测到微信账户")
 
         # 填充向后兼容性字段
         for account in accounts:
-            if account["data_dir"]:
+            if account.get("data_dir"):
                 result["wechat_data_dirs"].append(account["data_dir"])
                 result["message_dirs"].append(account["data_dir"])
-            result["user_accounts"].append(account["account_name"])
+            result["user_accounts"].append(account.get("account_name"))
 
             # 添加数据库到兼容性列表
-            for db in account["databases"]:
+            for db in account.get("databases", []):
                 result["databases"].append({
                     "path": db["path"],
                     "name": db["name"],
                     "type": db["type"],
                     "size": db["size"],
-                    "user": account["account_name"],
-                    "user_dir": account["data_dir"]
+                    "user": account.get("account_name"),
+                    "user_dir": account.get("data_dir"),
                 })
 
     except Exception as e:
@@ -624,6 +799,129 @@ def detect_wechat_installation() -> Dict[str, Any]:
     return result
 
 
+def detect_current_logged_in_account(base_path: str = None) -> Dict[str, Any]:
+    """
+    通过key_info.db文件时间检测当前登录的微信账号
+    
+    Args:
+        base_path: 微信数据根目录，如果为None则自动检测
+        
+    Returns:
+        当前登录账号信息
+    """
+    current_account = None
+    latest_time = None
+    
+    # 添加调试信息
+    print(f"[DEBUG] 开始检测当前登录账号，提供的base_path: {base_path}")
+    
+    # 如果没有指定路径，尝试自动检测
+    if base_path is None:
+        detected_dirs = auto_detect_wechat_data_dirs()
+        print(f"[DEBUG] 自动检测到的目录: {detected_dirs}")
+        if not detected_dirs:
+            return {
+                "current_account": None,
+                "latest_time": None,
+                "message": "未检测到微信数据目录"
+            }
+        base_path = detected_dirs[0]
+    
+    print(f"[DEBUG] 使用的base_path: {base_path}")
+    
+    # 查找登录信息目录 - 尝试多个可能的路径
+    possible_login_paths = [
+        os.path.join(base_path, "all_users", "login"),  # 标准路径
+        os.path.join(base_path, "login"),               # 备选路径1
+    ]
+    
+    # 也尝试在子目录中查找
+    try:
+        for item in os.listdir(base_path):
+            item_path = os.path.join(base_path, item)
+            if os.path.isdir(item_path):
+                possible_login_paths.extend([
+                    os.path.join(item_path, "all_users", "login"),  # 子目录中的标准路径
+                    os.path.join(item_path, "login"),               # 子目录中的备选路径
+                ])
+    except (PermissionError, OSError):
+        pass
+    
+    login_dir = None
+    for path in possible_login_paths:
+        print(f"[DEBUG] 检查路径: {path}")
+        if os.path.exists(path):
+            login_dir = path
+            print(f"[DEBUG] 找到登录目录: {login_dir}")
+            break
+    
+    if not login_dir:
+        return {
+            "current_account": None,
+            "latest_time": None,
+            "message": f"未找到登录信息目录，尝试的路径: {possible_login_paths}"
+        }
+    
+    try:
+        # 遍历登录目录下的所有账号文件夹
+        items = os.listdir(login_dir)
+        print(f"[DEBUG] 登录目录内容: {items}")
+        
+        for item in items:
+            item_path = os.path.join(login_dir, item)
+            print(f"[DEBUG] 检查项目: {item}, 路径: {item_path}, 是否为目录: {os.path.isdir(item_path)}")
+            
+            if not os.path.isdir(item_path):
+                continue
+                
+            # 检查key_info.db文件
+            key_info_path = os.path.join(item_path, "key_info.db")
+            print(f"[DEBUG] 检查key_info.db文件: {key_info_path}, 是否存在: {os.path.exists(key_info_path)}")
+            
+            if not os.path.exists(key_info_path):
+                continue
+                
+            # 获取文件修改时间
+            try:
+                file_time = os.path.getmtime(key_info_path)
+                file_datetime = datetime.fromtimestamp(file_time)
+                print(f"[DEBUG] 找到key_info.db文件: {key_info_path}, 修改时间: {file_datetime}")
+                
+                # 更新最新登录的账号
+                if latest_time is None or file_time > latest_time:
+                    latest_time = file_time
+                    current_account = item
+                    print(f"[DEBUG] 更新最新登录账号: {current_account}, 时间: {file_datetime}")
+                    
+            except OSError as e:
+                print(f"[DEBUG] 无法获取文件时间: {key_info_path}, 错误: {e}")
+                continue
+                
+    except (PermissionError, OSError) as e:
+        print(f"[DEBUG] 无法访问登录目录: {login_dir}, 错误: {e}")
+        return {
+            "current_account": None,
+            "latest_time": None,
+            "message": f"无法访问登录目录: {e}"
+        }
+    
+    if current_account:
+        print(f"[DEBUG] 最终结果: 当前登录账号 {current_account}, 时间 {latest_time}")
+        return {
+            "current_account": current_account,
+            "latest_time": latest_time,
+            "latest_time_formatted": datetime.fromtimestamp(latest_time).isoformat() if latest_time else None,
+            "message": f"检测到当前登录账号: {current_account}"
+        }
+    else:
+        print(f"[DEBUG] 最终结果: 未检测到当前登录账号")
+        return {
+            "current_account": None,
+            "latest_time": None,
+            "message": "未检测到当前登录账号"
+        }
+
+
 def get_wechat_info() -> Dict[str, Any]:
     """获取微信安装和数据库信息