refactor: 移除微信 3.0 解密路径, 统一走 4.0 WCDB

- wechat-db.ts 删除 SQLCipher 回退、connectDb、getUser、tryOpenWechat4 等 3.0 专属逻辑 - image-decrypt-service.ts 删除 decryptDatV3 与 version === 0 分支 - index.ts 去除 wcdb4Client 冗余空值检查 - 移除 better-sqlite3-multiple-ciphers 依赖 - README 版本前置改为 4.0+ Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
fix: 修复 macOS 打包版 WCDB 初始化
2026-08-18 03:57:02 +08:00 · 2026-07-03 10:37:51 +08:00 · 2026-07-03 10:05:50 +08:00 · 2026-07-02 10:24:31 +08:00 · 2026-06-30 16:04:01 +08:00 · 2026-06-30 14:39:52 +08:00
16 changed files with 527 additions and 611 deletions
@@ -50,8 +50,7 @@ MAC系统 获取微信聊天记录 AI一键生成群聊总结
 ### 使用前置要求

 - **微信版本**:
-  - 微信 <= 4.0: 可正常使用，获取数据库密码方式参考：[Mac 导出微信聊天记录](https://blog.vcvit.me/2024/08/02/mac-export-wechat-chat-records/)
-  - 微信 >= 4.0: 已支持部分能力，仍在持续迭代与兼容性验证中；如需更成熟的完整方案，推荐使用 [WeFlow](https://github.com/hicccc77/WeFlow) [Chatlog](https://github.com/sjzar/chatlog)
+  - 微信 4.0+: 已支持部分能力，仍在持续迭代与兼容性验证中；如需更成熟的完整方案，推荐使用 [WeFlow](https://github.com/hicccc77/WeFlow) [Chatlog](https://github.com/sjzar/chatlog)
 - 如无法获取本地数据库密码，则无法使用当前项目
 - Node.js (推荐 v16+)
 - pnpm@7
@@ -1,5 +1,6 @@
-appId: com.electron.app
-productName: wechatexplorer
+appId: com.wechatexplorer.app
+productName: WechatExplorer
+afterPack: scripts/after-pack.cjs
 directories:
  buildResources: build
 files:
@@ -29,10 +30,14 @@ nsis:
 mac:
  entitlementsInherit: build/entitlements.mac.plist
  extendInfo:
-    - NSCameraUsageDescription: Application requests access to the device's camera.
-    - NSMicrophoneUsageDescription: Application requests access to the device's microphone.
-    - NSDocumentsFolderUsageDescription: Application requests access to the user's Documents folder.
-    - NSDownloadsFolderUsageDescription: Application requests access to the user's Downloads folder.
+    # The bundled WCDB bridge accepts Electron as its internal host name. The
+    # public app name and bundle identifier remain WechatExplorer-specific.
+    CFBundleName: Electron
+    CFBundleDisplayName: WechatExplorer
+    NSCameraUsageDescription: Application requests access to the device's camera.
+    NSMicrophoneUsageDescription: Application requests access to the device's microphone.
+    NSDocumentsFolderUsageDescription: Application requests access to the user's Documents folder.
+    NSDownloadsFolderUsageDescription: Application requests access to the user's Downloads folder.
  notarize: false
 dmg:
  artifactName: ${name}-${version}.${ext}
@@ -1,6 +1,6 @@
 {
  "name": "wechatexplorer",
-  "version": "1.1.0",
+  "version": "2.0.1",
  "description": "mac 版本获取微信聊天记录, AI群聊总结助手",
  "keywords": [
    "wechat",
@@ -21,17 +21,16 @@
    "dev": "electron-vite dev",
    "build": "npm run typecheck && electron-vite build",
    "postinstall": "electron-builder install-app-deps",
-    "build:unpack": "npm run build && electron-builder --dir",
-    "build:win": "npm run build && electron-builder --win",
-    "build:mac:x64": "electron-vite build && electron-builder --mac --x64",
-    "build:mac:arm64": "electron-vite build && electron-builder --mac --arm64",
-    "release:mac": "electron-vite build && electron-builder --mac --x64 --arm64 --publish always",
-    "build:linux": "electron-vite build && electron-builder --linux"
+    "build:unpack": "npm run build && electron-builder --config electron-builder.yml --dir",
+    "build:win": "npm run build && electron-builder --config electron-builder.yml --win",
+    "build:mac:x64": "electron-vite build && electron-builder --config electron-builder.yml --mac --x64",
+    "build:mac:arm64": "electron-vite build && electron-builder --config electron-builder.yml --mac --arm64",
+    "release:mac": "electron-vite build && electron-builder --config electron-builder.yml --mac --x64 --arm64 --publish always",
+    "build:linux": "electron-vite build && electron-builder --config electron-builder.yml --linux"
  },
  "dependencies": {
    "@electron-toolkit/preload": "^3.0.2",
    "@electron-toolkit/utils": "^4.0.0",
-    "better-sqlite3-multiple-ciphers": "^12.5.0",
    "fs-extra": "^11.3.2",
    "fzstd": "^0.1.1",
    "koffi": "^2.9.0",
@@ -66,14 +65,5 @@
      "electron",
      "esbuild"
    ]
-  },
-  "build": {
-    "artifactName": "${productName}-${version}-${os}-${arch}.${ext}",
-    "mac": {
-      "target": [
-        "dmg",
-        "zip"
-      ]
-    }
  }
 }
@@ -16,7 +16,6 @@ specifiers:
  '@types/react': ^19.2.7
  '@types/react-dom': ^19.2.3
  '@vitejs/plugin-react': ^5.1.1
-  better-sqlite3-multiple-ciphers: ^12.5.0
  electron: ^39.2.6
  electron-builder: ^26.0.12
  electron-vite: ^5.0.0
@@ -38,7 +37,6 @@ specifiers:
 dependencies:
  '@electron-toolkit/preload': 3.0.2_electron@39.2.6
  '@electron-toolkit/utils': 4.0.0_electron@39.2.6
-  better-sqlite3-multiple-ciphers: 12.5.0
  fs-extra: 11.3.2
  fzstd: 0.1.1
  koffi: 2.16.2
@@ -1578,32 +1576,20 @@ packages:

  /base64-js/1.5.1:
    resolution: {integrity: sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==}
+    dev: true

  /baseline-browser-mapping/2.9.5:
    resolution: {integrity: sha512-D5vIoztZOq1XM54LUdttJVc96ggEsIfju2JBvht06pSzpckp3C7HReun67Bghzrtdsq9XdMGbSSB3v3GhMNmAA==}
    hasBin: true
    dev: true

-  /better-sqlite3-multiple-ciphers/12.5.0:
-    resolution: {integrity: sha512-bYbiV0TdCIQFqlI122+wIFnc3yXWHyz8A/026Y/YfiA3vKcC0wLnHqqociNehpFmbRSowuY3Ko8SyUhBXI9+4A==}
-    engines: {node: 20.x || 22.x || 23.x || 24.x}
-    dependencies:
-      bindings: 1.5.0
-      prebuild-install: 7.1.3
-    dev: false
-
-  /bindings/1.5.0:
-    resolution: {integrity: sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==}
-    dependencies:
-      file-uri-to-path: 1.0.0
-    dev: false
-
  /bl/4.1.0:
    resolution: {integrity: sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==}
    dependencies:
      buffer: 5.7.1
      inherits: 2.0.4
      readable-stream: 3.6.2
+    dev: true

  /boolean/3.2.0:
    resolution: {integrity: sha512-d0II/GO9uf9lfUHH2BQsjxzRJZBdsjgsBiW4BvhWk/3qoKwQFjIDVN19PfX8F2D/r9PCMTtLWjYVCFrpeYUzsw==}
@@ -1647,6 +1633,7 @@ packages:
    dependencies:
      base64-js: 1.5.1
      ieee754: 1.2.1
+    dev: true

  /builder-util-runtime/9.3.1:
    resolution: {integrity: sha512-2/egrNDDnRaxVwK3A+cJq6UOlqOdedGA7JPqCeJjN2Zjk1/QB/6QUi3b714ScIGS7HafFXTyzJEOr5b44I3kvQ==}
@@ -1772,10 +1759,6 @@ packages:
      supports-color: 7.2.0
    dev: true

-  /chownr/1.1.4:
-    resolution: {integrity: sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==}
-    dev: false
-
  /chownr/2.0.0:
    resolution: {integrity: sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==}
    engines: {node: '>=10'}
@@ -1947,11 +1930,6 @@ packages:
    dependencies:
      mimic-response: 3.1.0

-  /deep-extend/0.6.0:
-    resolution: {integrity: sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==}
-    engines: {node: '>=4.0.0'}
-    dev: false
-
  /deep-is/0.1.4:
    resolution: {integrity: sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==}
    dev: true
@@ -1990,6 +1968,7 @@ packages:
  /detect-libc/2.1.2:
    resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
    engines: {node: '>=8'}
+    dev: true

  /detect-node/2.1.0:
    resolution: {integrity: sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g==}
@@ -2528,11 +2507,6 @@ packages:
    engines: {node: '>=0.10.0'}
    dev: true

-  /expand-template/2.0.3:
-    resolution: {integrity: sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==}
-    engines: {node: '>=6'}
-    dev: false
-
  /exponential-backoff/3.1.3:
    resolution: {integrity: sha512-ZgEeZXj30q+I0EN+CbSSpIyPaJ5HVQD18Z1m+u1FXbAeT94mr1zw50q4q6jiiC447Nl/YTcIYSAftiGqetwXCA==}
    dev: true
@@ -2596,10 +2570,6 @@ packages:
      flat-cache: 4.0.1
    dev: true

-  /file-uri-to-path/1.0.0:
-    resolution: {integrity: sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==}
-    dev: false
-
  /filelist/1.0.4:
    resolution: {integrity: sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==}
    dependencies:
@@ -2652,10 +2622,6 @@ packages:
      mime-types: 2.1.35
    dev: true

-  /fs-constants/1.0.0:
-    resolution: {integrity: sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==}
-    dev: false
-
  /fs-extra/10.1.0:
    resolution: {integrity: sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==}
    engines: {node: '>=12'}
@@ -2787,10 +2753,6 @@ packages:
      get-intrinsic: 1.3.0
    dev: true

-  /github-from-package/0.0.0:
-    resolution: {integrity: sha512-SyHy3T1v2NUXn29OsWdxmK6RwHD+vkj3v8en8AOBZ1wBQ/hCAQ5bAQTD02kW4W9tUp/3Qh6J8r9EvntiyCmOOw==}
-    dev: false
-
  /glob-parent/6.0.2:
    resolution: {integrity: sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A==}
    engines: {node: '>=10.13.0'}
@@ -3020,6 +2982,7 @@ packages:

  /ieee754/1.2.1:
    resolution: {integrity: sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==}
+    dev: true

  /ignore/5.3.2:
    resolution: {integrity: sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g==}
@@ -3063,10 +3026,7 @@ packages:

  /inherits/2.0.4:
    resolution: {integrity: sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==}
-
-  /ini/1.3.8:
-    resolution: {integrity: sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==}
-    dev: false
+    dev: true

  /internal-slot/1.1.0:
    resolution: {integrity: sha512-4gd7VpWNQNB4UKKCFFVcp1AVv+FMOgs9NKzjHKusc8jTMhd5eL1NqQqOpE0KzMds804/yHlglp3uxgluOqAPLw==}
@@ -3574,6 +3534,7 @@ packages:

  /minimist/1.2.8:
    resolution: {integrity: sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==}
+    dev: true

  /minipass-collect/1.0.2:
    resolution: {integrity: sha512-6T6lH0H8OG9kITm/Jm6tdooIbogG9e0tLgpY6mphXSm/A9u8Nq1ryBG+Qspiub9LjWlBPsPS3tWQ/Botq4FdxA==}
@@ -3639,10 +3600,6 @@ packages:
      yallist: 4.0.0
    dev: true

-  /mkdirp-classic/0.5.3:
-    resolution: {integrity: sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==}
-    dev: false
-
  /mkdirp/1.0.4:
    resolution: {integrity: sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==}
    engines: {node: '>=10'}
@@ -3658,10 +3615,6 @@ packages:
    hasBin: true
    dev: true

-  /napi-build-utils/2.0.0:
-    resolution: {integrity: sha512-GEbrYkbfF7MoNaoh2iGG84Mnf/WZfB0GdGEsM8wz7Expx/LlWf5U8t9nvJKXSp3qr5IsEbK04cBGhol/KwOsWA==}
-    dev: false
-
  /natural-compare/1.4.0:
    resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
    dev: true
@@ -3676,6 +3629,7 @@ packages:
    engines: {node: '>=10'}
    dependencies:
      semver: 7.7.3
+    dev: true

  /node-addon-api/1.7.2:
    resolution: {integrity: sha512-ibPK3iA+vaY1eEjESkQkM0BbCqFOaZMiXRTtdB0u7b4djtY6JnsjvPdUHVMg6xQt3B8fpTTWHI9A+ADjM9frzg==}
@@ -3924,25 +3878,6 @@ packages:
      source-map-js: 1.2.1
    dev: true

-  /prebuild-install/7.1.3:
-    resolution: {integrity: sha512-8Mf2cbV7x1cXPUILADGI3wuhfqWvtiLA1iclTDbFRZkgRQS0NqsPZphna9V+HyTEadheuPmjaJMsbzKQFOzLug==}
-    engines: {node: '>=10'}
-    hasBin: true
-    dependencies:
-      detect-libc: 2.1.2
-      expand-template: 2.0.3
-      github-from-package: 0.0.0
-      minimist: 1.2.8
-      mkdirp-classic: 0.5.3
-      napi-build-utils: 2.0.0
-      node-abi: 3.85.0
-      pump: 3.0.3
-      rc: 1.2.8
-      simple-get: 4.0.1
-      tar-fs: 2.1.4
-      tunnel-agent: 0.6.0
-    dev: false
-
  /prelude-ls/1.2.1:
    resolution: {integrity: sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==}
    engines: {node: '>= 0.8.0'}
@@ -4010,16 +3945,6 @@ packages:
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    engines: {node: '>=10'}

-  /rc/1.2.8:
-    resolution: {integrity: sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==}
-    hasBin: true
-    dependencies:
-      deep-extend: 0.6.0
-      ini: 1.3.8
-      minimist: 1.2.8
-      strip-json-comments: 2.0.1
-    dev: false
-
  /react-dom/19.2.1_react@19.2.1:
    resolution: {integrity: sha512-ibrK8llX2a4eOskq1mXKu/TGZj9qzomO+sNfO98M6d9zIPOEhlBkMkBUBLd1vgS0gQsLDBzA+8jJBVXDnfHmJg==}
    peerDependencies:
@@ -4059,6 +3984,7 @@ packages:
      inherits: 2.0.4
      string_decoder: 1.3.0
      util-deprecate: 1.0.2
+    dev: true

  /reflect.getprototypeof/1.0.10:
    resolution: {integrity: sha512-00o4I+DVrefhv+nX0ulyi3biSHCPDe+yLv5o/p6d/UVlirijB8E16FtfwSAi4g3tcqrQ4lRAqQSoFEZJehYEcw==}
@@ -4198,6 +4124,7 @@ packages:

  /safe-buffer/5.2.1:
    resolution: {integrity: sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==}
+    dev: true

  /safe-push-apply/1.0.0:
    resolution: {integrity: sha512-iKE9w/Z7xCzUMIZqdBsp6pEQvwuEebH4vdpjcDWnyzaI6yl6O9FHvVpmGelvEHNsoY6wGblkxR6Zty/h00WiSA==}
@@ -4356,18 +4283,6 @@ packages:
    engines: {node: '>=16.11.0'}
    dev: false

-  /simple-concat/1.0.1:
-    resolution: {integrity: sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==}
-    dev: false
-
-  /simple-get/4.0.1:
-    resolution: {integrity: sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==}
-    dependencies:
-      decompress-response: 6.0.0
-      once: 1.4.0
-      simple-concat: 1.0.1
-    dev: false
-
  /simple-update-notifier/2.0.0:
    resolution: {integrity: sha512-a2B9Y0KlNXl9u/vsW6sTIu9vGEpfKu2wRV6l1H3XEas/0gUIzGzBoP/IouTcUQbm9JWZLH3COxyn03TYlFax6w==}
    engines: {node: '>=10'}
@@ -4530,6 +4445,7 @@ packages:
    resolution: {integrity: sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==}
    dependencies:
      safe-buffer: 5.2.1
+    dev: true

  /strip-ansi/6.0.1:
    resolution: {integrity: sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==}
@@ -4545,11 +4461,6 @@ packages:
      ansi-regex: 6.2.2
    dev: true

-  /strip-json-comments/2.0.1:
-    resolution: {integrity: sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==}
-    engines: {node: '>=0.10.0'}
-    dev: false
-
  /strip-json-comments/3.1.1:
    resolution: {integrity: sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==}
    engines: {node: '>=8'}
@@ -4582,26 +4493,6 @@ packages:
      '@pkgr/core': 0.2.9
    dev: true

-  /tar-fs/2.1.4:
-    resolution: {integrity: sha512-mDAjwmZdh7LTT6pNleZ05Yt65HC3E+NiQzl672vQG38jIrehtJk/J3mNwIg+vShQPcLF/LV7CMnDW6vjj6sfYQ==}
-    dependencies:
-      chownr: 1.1.4
-      mkdirp-classic: 0.5.3
-      pump: 3.0.3
-      tar-stream: 2.2.0
-    dev: false
-
-  /tar-stream/2.2.0:
-    resolution: {integrity: sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==}
-    engines: {node: '>=6'}
-    dependencies:
-      bl: 4.1.0
-      end-of-stream: 1.4.5
-      fs-constants: 1.0.0
-      inherits: 2.0.4
-      readable-stream: 3.6.2
-    dev: false
-
  /tar/6.2.1:
    resolution: {integrity: sha512-DZ4yORTwrbTj/7MZYq2w+/ZFdI6OZ/f9SFHR+71gIVUZhOQPHzVCLpvRnPgyaMpfWxxk/4ONva3GQSyNIKRv6A==}
    engines: {node: '>=10'}
@@ -4661,12 +4552,6 @@ packages:
      typescript: 5.9.3
    dev: true

-  /tunnel-agent/0.6.0:
-    resolution: {integrity: sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==}
-    dependencies:
-      safe-buffer: 5.2.1
-    dev: false
-
  /type-check/0.4.0:
    resolution: {integrity: sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==}
    engines: {node: '>= 0.8.0'}
@@ -4805,6 +4690,7 @@ packages:

  /util-deprecate/1.0.2:
    resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
+    dev: true

  /verror/1.10.1:
    resolution: {integrity: sha512-veufcmxri4e3XSrT0xwfUR7kguIkaxBeosDg00yDWhk49wdwkSUrvvsm7nc75e1PUyvIeZj6nS8VQRYz2/S4Xg==}
@@ -0,0 +1,54 @@
+const { existsSync, renameSync } = require('node:fs')
+const { execFileSync } = require('node:child_process')
+const path = require('node:path')
+
+const COMPATIBILITY_NAME = 'Electron'
+const HELPER_SUFFIXES = ['', ' (Plugin)', ' (Renderer)', ' (GPU)']
+
+function setPlistValue(plistPath, key, value) {
+  execFileSync('/usr/libexec/PlistBuddy', ['-c', `Set :${key} ${value}`, plistPath])
+}
+
+exports.default = async function afterPack(context) {
+  if (context.electronPlatformName !== 'darwin') return
+
+  const productName = context.packager.appInfo.productFilename
+  const appPath = path.join(context.appOutDir, `${productName}.app`)
+  const contentsPath = path.join(appPath, 'Contents')
+  const sourceExecutable = path.join(contentsPath, 'MacOS', productName)
+  const targetExecutable = path.join(contentsPath, 'MacOS', COMPATIBILITY_NAME)
+
+  if (existsSync(sourceExecutable)) renameSync(sourceExecutable, targetExecutable)
+  if (!existsSync(targetExecutable)) {
+    throw new Error(`Missing Electron main executable: ${sourceExecutable}`)
+  }
+
+  const appPlistPath = path.join(contentsPath, 'Info.plist')
+  setPlistValue(appPlistPath, 'CFBundleExecutable', COMPATIBILITY_NAME)
+  setPlistValue(appPlistPath, 'CFBundleName', COMPATIBILITY_NAME)
+
+  const frameworksPath = path.join(contentsPath, 'Frameworks')
+
+  for (const suffix of HELPER_SUFFIXES) {
+    const sourceName = `${productName} Helper${suffix}`
+    const targetName = `${COMPATIBILITY_NAME} Helper${suffix}`
+    const sourceBundle = path.join(frameworksPath, `${sourceName}.app`)
+    const targetBundle = path.join(frameworksPath, `${targetName}.app`)
+
+    if (existsSync(sourceBundle)) renameSync(sourceBundle, targetBundle)
+    if (!existsSync(targetBundle)) {
+      throw new Error(`Missing Electron helper bundle: ${sourceBundle}`)
+    }
+
+    const sourceExecutable = path.join(targetBundle, 'Contents', 'MacOS', sourceName)
+    const targetExecutable = path.join(targetBundle, 'Contents', 'MacOS', targetName)
+    if (existsSync(sourceExecutable)) renameSync(sourceExecutable, targetExecutable)
+    if (!existsSync(targetExecutable)) {
+      throw new Error(`Missing Electron helper executable: ${sourceExecutable}`)
+    }
+
+    const plistPath = path.join(targetBundle, 'Contents', 'Info.plist')
+    setPlistValue(plistPath, 'CFBundleExecutable', targetName)
+    setPlistValue(plistPath, 'CFBundleName', targetName)
+  }
+}
@@ -241,15 +241,11 @@ export class ImageDecryptService {
      )

      let decrypted: Buffer
-      if (version === 0) {
-        console.log('[ImageDecrypt] using V3 (XOR only)')
-        decrypted = this.decryptDatV3(datPath)
-      } else if (version === 1) {
+      if (version === 1) {
        console.log('[ImageDecrypt] using V1 (default AES key)')
        const key = Buffer.from(this.defaultV1AesKey, 'ascii')
        decrypted = this.decryptDatV4(datPath, key)
-      } else {
-        // version === 2
+      } else if (version === 2) {
        console.log('[ImageDecrypt] using V2 (user AES key)')
        if (!this.aesKey) {
          console.log('[ImageDecrypt] no AES key configured')
@@ -257,6 +253,9 @@ export class ImageDecryptService {
        }
        const key = Buffer.from(this.aesKey, 'ascii').slice(0, 16)
        decrypted = this.decryptDatV4(datPath, key)
+      } else {
+        console.log('[ImageDecrypt] unsupported dat version:', version)
+        return null
      }

      return decrypted
@@ -310,18 +309,6 @@ export class ImageDecryptService {
    return 0
  }

-  /**
-   * V3 解密 - 仅 XOR
-   */
-  private decryptDatV3(inputPath: string): Buffer {
-    const data = readFileSync(inputPath)
-    const out = Buffer.alloc(data.length)
-    for (let i = 0; i < data.length; i += 1) {
-      out[i] = data[i] ^ this.xorKey
-    }
-    return out
-  }
-
  /**
   * V4 解密 - AES + XOR
   */
@@ -113,16 +113,13 @@ app.whenReady().then(() => {
      wechatDb?.close()
      wechatDb = nextWechatDb
      const wcdb4Client = nextWechatDb.getWcdb4Client()
-      let monitoring = false
-      if (wcdb4Client) {
-        voiceService = new VoiceService(wcdb4Client)
-        stickerService = new StickerService(wcdb4Client)
-        monitoring = wcdb4Client.startMonitor((type, json) => {
-          for (const window of BrowserWindow.getAllWindows()) {
-            if (!window.isDestroyed()) window.webContents.send('wcdb-change', { type, json })
-          }
-        })
-      }
+      voiceService = new VoiceService(wcdb4Client)
+      stickerService = new StickerService(wcdb4Client)
+      const monitoring = wcdb4Client.startMonitor((type, json) => {
+        for (const window of BrowserWindow.getAllWindows()) {
+          if (!window.isDestroyed()) window.webContents.send('wcdb-change', { type, json })
+        }
+      })
      imageDecryptService = null
      return { success: true, monitoring }
    } catch (error) {
@@ -206,14 +203,13 @@ app.whenReady().then(() => {
  ipcMain.handle('db:getMessages', (_, userMd5: string, startTime?: number, endTime?: number) => {
    if (!wechatDb) return []
    const wcdb4Client = wechatDb.getWcdb4Client()
-    const username = wcdb4Client?.getUsernameByMd5(userMd5)
+    const username = wcdb4Client.getUsernameByMd5(userMd5)
    const rawMessages = wechatDb.getUserMessages(userMd5, startTime, endTime)
    const groupMembers = wechatDb.getGroupMembersForChat(userMd5)
    const myAvatar = wechatDb.getMyAvatarUrl()
-    const myGroupNickname =
-      username?.endsWith('@chatroom') && wcdb4Client
-        ? wcdb4Client.getMyGroupNickname(username)
-        : undefined
+    const myGroupNickname = username?.endsWith('@chatroom')
+      ? wcdb4Client.getMyGroupNickname(username)
+      : undefined

    return rawMessages.map((msg: WechatMessage) => {
      const rawMsgType = parseInt(msg.messageType)
@@ -265,20 +261,23 @@ app.whenReady().then(() => {
        /<appmsg\b|<refermsg\b|&lt;appmsg\b|&lt;refermsg\b/i.test(content)
          ? 49
          : msgType
-      if ([3, 42, 47, 48, 49, 50].includes(inferredMsgType)) {
+      if ([3, 42, 47, 48, 49, 50, 10000, 10002].includes(inferredMsgType)) {
        try {
          const parsed =
            inferredMsgType === 47
              ? parseStickerMessageFromRow(msg, content)
              : parseMessageContent(content, inferredMsgType)
-          if (parsed.type !== 'unknown') {
+          if (parsed.type === 'system') {
+            content = parsed.content
+            contentData = parsed
+          } else if (parsed.type !== 'unknown') {
            content = ''
          }
          if (parsed.type === 'image') {
            const imageDatName = parseImageDatNameFromRow(msg)
            contentData = { ...parsed, datName: parsed.datName || imageDatName }
-          } else {
-            if (parsed.type === 'sticker' && !parsed.url && parsed.md5 && wcdb4Client) {
+          } else if (parsed.type !== 'system') {
+            if (parsed.type === 'sticker' && !parsed.url && parsed.md5) {
              parsed.url = wcdb4Client.resolveEmoticonCdnUrl(parsed.md5)
            }
            contentData = parsed
@@ -298,7 +297,7 @@ app.whenReady().then(() => {
      ) {
        const parsed = parseStickerMessageFromRow(msg, content)
        if (parsed.type === 'sticker') {
-          if (!parsed.url && parsed.md5 && wcdb4Client) {
+          if (!parsed.url && parsed.md5) {
            parsed.url = wcdb4Client.resolveEmoticonCdnUrl(parsed.md5)
          }
          content = ''
@@ -313,7 +312,7 @@ app.whenReady().then(() => {

      return {
        id: msg.mesLocalID || Math.random().toString(),
-        from: isMine ? 'assistant' : 'user',
+        from: contentData?.type === 'system' ? 'system' : isMine ? 'assistant' : 'user',
        type: displayType,
        datetime: date.toLocaleString('zh-CN', { hour12: false }),
        content: content,
@@ -327,6 +326,29 @@ app.whenReady().then(() => {
    })
  })

+  ipcMain.handle('db:getGroupSnapshot', (_, userMd5: string) => {
+    if (!wechatDb) return null
+    const wcdb4Client = wechatDb.getWcdb4Client()
+
+    const roomId = wcdb4Client.getUsernameByMd5(userMd5)
+    if (!roomId || !roomId.endsWith('@chatroom')) return null
+
+    const members = wcdb4Client
+      .getGroupMembers(roomId)
+      .filter((member) => member?.m_nsUsrName)
+      .map((member) => ({
+        wxid: member.m_nsUsrName,
+        nickname: member.nickname || '',
+        avatar: member.m_nsHeadImgUrl || ''
+      }))
+
+    return {
+      roomId,
+      memberCount: members.length,
+      members
+    }
+  })
+
  ipcMain.handle('db:search', (_, keyword: string) => {
    if (!wechatDb) return null
    return wechatDb.searchAllMessages(keyword)
@@ -41,7 +41,7 @@ type QuoteContent = {
  quotedSender?: string
  quotedType?: string
 }
-type SystemContent = { type: 'system'; content: string }
+type SystemContent = { type: 'system'; content: string; raw?: string }
 type UnknownContent = { type: 'unknown'; raw: string }

 export type ParsedContent =
@@ -79,12 +79,40 @@ export function parseMessageContent(content: string, messageType: number): Parse
      return parseVoipMessage(normalized)
    case 10000:
    case 10002:
-      return { type: 'system', content: normalized }
+      return parseSystemMessage(normalized)
    default:
      return { type: 'text', content: normalized }
  }
 }

+function parseSystemMessage(content: string): ParsedContent {
+  const stripped = stripChatroomPrefix(content)
+  const decoded = decodeXmlEntities(stripped)
+  const delChatroomMemberText = extractDelChatroomMemberText(decoded)
+  if (delChatroomMemberText) {
+    return {
+      type: 'system',
+      content: normalizeSystemText(delChatroomMemberText),
+      raw: content
+    }
+  }
+  const plainText =
+    extractXmlNodeText(decoded, 'plain') ||
+    extractXmlNodeText(decoded, 'text') ||
+    extractXmlNodeText(decoded, 'title') ||
+    extractXmlValue(decoded, 'plain') ||
+    extractXmlValue(decoded, 'text') ||
+    extractXmlValue(decoded, 'title') ||
+    ''
+
+  const normalized = normalizeSystemText(plainText || fallbackSystemText(decoded))
+  return {
+    type: 'system',
+    content: normalized || '[系统消息]',
+    raw: content
+  }
+}
+
 function parseImageMessage(content: string): ParsedContent {
  // 尝试 XML 格式: <img md5="..." aeskey="..."/>
  let md5 = extractXmlAttribute(content, 'img', 'md5') || extractXmlValue(content, 'md5') || ''
@@ -356,6 +384,20 @@ function sanitizeQuotedContent(content: string): string {
  return decoded
 }

+function stripChatroomPrefix(content: string): string {
+  return String(content || '')
+    .replace(/^[0-9a-z_-]+@chatroom:\s*/i, '')
+    .replace(/^wxid_[^:\n]+:\s*/i, '')
+    .trim()
+}
+
+function normalizeSystemText(content: string): string {
+  return String(content || '')
+    .replace(/\s+/g, ' ')
+    .replace(/\s+([,.;!?])/g, '$1')
+    .trim()
+}
+
 function parseVoipMessage(content: string): ParsedContent {
  const roomTypeStr = extractXmlValue(content, 'room_type')
  const msg = extractXmlValue(content, 'msg') || ''
@@ -416,6 +458,44 @@ function decodeXmlUrl(value: string): string {
  }
 }

+function decodeXmlEntities(value: string): string {
+  return String(value || '')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/&amp;/g, '&')
+}
+
+function extractXmlNodeText(xml: string, tagName: string): string {
+  const match = new RegExp(`<${tagName}[^>]*>([\\s\\S]*?)<\\/${tagName}>`, 'i').exec(xml)
+  if (!match?.[1]) return ''
+  return normalizeSystemText(
+    decodeXmlEntities(
+      match[1].replace(/<!\[CDATA\[([\s\S]*?)\]\]>/g, '$1').replace(/<[^>]+>/g, ' ')
+    )
+  )
+}
+
+function fallbackSystemText(xml: string): string {
+  return normalizeSystemText(
+    decodeXmlEntities(
+      String(xml || '')
+        .replace(/<!\[CDATA\[([\s\S]*?)\]\]>/g, '$1')
+        .replace(/<[^>]+>/g, ' ')
+    )
+  )
+}
+
+function extractDelChatroomMemberText(xml: string): string {
+  if (!/<sysmsg[^>]+delchatroommember/i.test(xml)) return ''
+  const plainMatch = /<plain[^>]*><!\[CDATA\[([\s\S]*?)\]\]><\/plain>/i.exec(xml)
+  if (plainMatch?.[1]) return plainMatch[1].trim()
+  const textMatch = /<text[^>]*><!\[CDATA\[([\s\S]*?)\]\]><\/text>/i.exec(xml)
+  if (textMatch?.[1]) return textMatch[1].trim()
+  return ''
+}
+
 function normalizeMd5(value: unknown): string | undefined {
  const md5 = String(value || '')
    .trim()
@@ -1,12 +1,5 @@
-import DatabaseConstructor from 'better-sqlite3-multiple-ciphers'
-import fs from 'fs-extra'
-import path from 'path'
-import crypto from 'crypto'
-import os from 'os'
 import { Wcdb4Client } from './wcdb4-client'

-type Database = import('better-sqlite3-multiple-ciphers').Database
-
 export interface UserContact {
  m_nsUsrName: string
  nickname: string
@@ -38,444 +31,122 @@ export interface GroupMemberInfo {
 }

 export class WechatDb {
-  private static WECHAT_DIR = path.join(
-    os.homedir(),
-    'Library/Containers/com.tencent.xinWeChat/Data/Library/Application Support/com.tencent.xinWeChat/2.0b4.0.9'
-  )
-
-  private rawKey: string
-  private correctUserId: string | null = null
-  private chatDb: { name: string; db_number: string }[] | null = null
-  private groupMemberCache = new Map<string, GroupMemberInfo | null>()
-  private wcdb4Client: Wcdb4Client | null = null
+  private wcdb4Client: Wcdb4Client
  private chatMd5ToUsername = new Map<string, string>()
-  private wechat4OpenError: string | null = null

  constructor(rawKey: string) {
-    this.rawKey = rawKey
    console.log(`Initializing WechatDb with key length: ${rawKey.trim().length}`)
-
-    if (this.tryOpenWechat4()) {
-      this.chatDb = this.getChatDbNumber()
-      return
-    }
-
-    if (!fs.existsSync(WechatDb.WECHAT_DIR)) {
-      throw new Error(`WeChat directory not found at ${WechatDb.WECHAT_DIR}`)
-    }
-
-    if (this.getUser()) {
-      console.log('User found, getting chat DB number')
-      this.chatDb = this.getChatDbNumber()
-    } else {
-      throw new Error(
-        `No valid user found or invalid key${this.wechat4OpenError ? `; WeChat 4.0 error: ${this.wechat4OpenError}` : ''}`
-      )
-    }
-  }
-
-  private tryOpenWechat4(): boolean {
-    try {
-      const client = new Wcdb4Client(this.rawKey)
-      client.open()
-      this.wcdb4Client = client
-      console.log('Opened WeChat 4.0 database with WechatExplorer WCDB native adapter')
-      return true
-    } catch (error) {
-      this.wechat4OpenError = error instanceof Error ? error.message : String(error)
-      console.warn('WeChat 4.0 open failed, fallback to 3.0 SQLCipher mode:', error)
-      this.wcdb4Client = null
-      return false
-    }
-  }
-
-  private connectDb(dbPath: string): Database | null {
-    const targetPath = path.resolve(dbPath)
-    if (!fs.existsSync(targetPath)) {
-      console.error(`❌ 错误：数据库文件不存在于路径：${targetPath}`)
-      return null
-    }
-
-    try {
-      const db = new DatabaseConstructor(targetPath, {
-        // verbose: console.log
-      })
-
-      // 配置加密方案 (Cipher Scheme)
-      db.pragma("cipher='sqlcipher'")
-      db.pragma('cipher_page_size = 1024')
-      db.pragma('legacy=3')
-      db.pragma('kdf_iter = 64000')
-      db.pragma('cipher_hmac_algorithm = HMAC_SHA1')
-      db.pragma('cipher_kdf_algorithm = PBKDF2_HMAC_SHA1')
-
-      const processedKey = this.processRawKey(this.rawKey)
-      // console.log(`🔑 应用密钥 (前6位): ${processedKey.substring(0, 6)}...`)
-
-      db.pragma(`key = "x'${processedKey}'"`)
-
-      // 验证连接
-      db.prepare('SELECT count(*) as count FROM sqlite_master').get()
-
-      return db
-    } catch (error) {
-      console.error(`❌ 连接失败:`, error)
-
-      const errString = String(error)
-      if (errString.includes('file is not a database')) {
-        console.error(
-          "💡 诊断建议：\n1. 请确认是否已安装 'better-sqlite3-multiple-ciphers'。\n2. 检查密钥是否正确（WeChat密钥与设备强绑定）。\n3. 尝试将页大小改为 4096 (db.pragma('cipher_page_size = 4096'))。"
-        )
-      } else if (errString.includes('HMAC')) {
-        console.error(
-          '💡 诊断建议：密钥可能正确，但HMAC算法或页大小不匹配。尝试调整 cipher_hmac_algorithm。'
-        )
-      }
-
-      return null
-    }
-  }
-
-  private processRawKey(key: string): string {
-    // 移除可能的 '0x' 前缀并修剪空格
-    return key.replace(/^0x/i, '').trim()
-  }
-
-  private getUser(): boolean {
-    const keyValuePath = path.join(WechatDb.WECHAT_DIR, 'KeyValue')
-    if (!fs.existsSync(keyValuePath)) return false
-
-    const contents = fs.readdirSync(keyValuePath)
-    const potentialUsers = contents.filter((name) => !name.startsWith('.'))
-
-    for (const user of potentialUsers) {
-      const dbPath = path.join(keyValuePath, user, 'KeyValue.db')
-      if (fs.existsSync(dbPath)) {
-        const db = this.connectDb(dbPath)
-        if (db) {
-          this.correctUserId = user
-          console.log(`Valid user found: ${user}`)
-          db.close()
-          return true
-        }
+    const client = new Wcdb4Client(rawKey)
+    client.open()
+    this.wcdb4Client = client
+    for (const table of client.getChatTables()) {
+      if (table.name.startsWith('Chat_')) {
+        this.chatMd5ToUsername.set(table.name.substring(5), table.db_number)
      }
    }
-    return false
-  }
-
-  private getChatDbNumber(): { name: string; db_number: string }[] {
-    if (this.wcdb4Client) {
-      const chatDb = this.wcdb4Client.getChatTables()
-      this.chatMd5ToUsername.clear()
-      for (const table of chatDb) {
-        if (table.name.startsWith('Chat_')) {
-          this.chatMd5ToUsername.set(table.name.substring(5), table.db_number)
-        }
-      }
-      return chatDb
-    }
-
-    const chatDb: { name: string; db_number: string }[] = []
-    if (!this.correctUserId) return []
-
-    for (let i = 0; i < 10; i++) {
-      const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Message', `msg_${i}.db`)
-      if (!fs.existsSync(dbPath)) continue
-
-      const db = this.connectDb(dbPath)
-      if (db) {
-        const tables = db
-          .prepare("SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'Chat_%'")
-          .all() as { name: string }[]
-        for (const table of tables) {
-          chatDb.push({ name: table.name, db_number: `msg_${i}.db` })
-        }
-        db.close()
-      }
-    }
-    return chatDb
  }

  public getUserList(nicknameFilter?: string): UserContact[] {
-    if (this.wcdb4Client) {
-      const keyword = (nicknameFilter || '').trim().toLowerCase()
-      return this.wcdb4Client
-        .getSessions()
-        .map((session) => ({
-          m_nsUsrName: session.username,
-          nickname: session.nickname || session.username,
-          avatar: session.avatar
-        }))
-        .filter((contact) => {
-          if (!keyword) return true
-          return (
-            contact.m_nsUsrName.toLowerCase().includes(keyword) ||
-            contact.nickname.toLowerCase().includes(keyword)
-          )
-        })
-    }
-
-    if (!this.correctUserId) return []
-    const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Contact/wccontact_new2.db')
-    const db = this.connectDb(dbPath)
-    if (!db) return []
-
-    let query = "SELECT m_nsUsrName, nickname FROM WCContact WHERE m_nsUsrName NOT LIKE 'gh_%'"
-    if (nicknameFilter) {
-      query += ` AND nickname LIKE '%${nicknameFilter}%'`
-    }
-
-    const results = db.prepare(query).all() as unknown as UserContact[]
-    db.close()
-    return results
+    const keyword = (nicknameFilter || '').trim().toLowerCase()
+    return this.wcdb4Client
+      .getSessions()
+      .map((session) => ({
+        m_nsUsrName: session.username,
+        nickname: session.nickname || session.username,
+        avatar: session.avatar
+      }))
+      .filter((contact) => {
+        if (!keyword) return true
+        return (
+          contact.m_nsUsrName.toLowerCase().includes(keyword) ||
+          contact.nickname.toLowerCase().includes(keyword)
+        )
+      })
  }

  public getAllGroupContacts(): Record<string, string> {
-    if (this.wcdb4Client) {
-      const groupContacts: Record<string, string> = {}
-      for (const session of this.wcdb4Client.getSessions()) {
-        if (session.username.endsWith('@chatroom')) {
-          groupContacts[this.md5(session.username)] = session.nickname || session.username
-        }
-      }
-      return groupContacts
-    }
-
-    if (!this.correctUserId) return {}
-    const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Group/group_new.db')
-    const db = this.connectDb(dbPath)
-    if (!db) return {}
-
-    const results = db.prepare('SELECT m_nsUsrName, nickname FROM GroupContact').all() as {
-      m_nsUsrName: string
-      nickname: string
-    }[]
-    db.close()
-
    const groupContacts: Record<string, string> = {}
-    for (const row of results) {
-      if (row.m_nsUsrName && row.nickname) {
-        const md5 = this.md5(row.m_nsUsrName)
-        groupContacts[md5] = row.nickname
+    for (const session of this.wcdb4Client.getSessions()) {
+      if (session.username.endsWith('@chatroom')) {
+        groupContacts[this.md5(session.username)] = session.nickname || session.username
      }
    }
    return groupContacts
  }

  public getAllGroupMembers(): Record<string, string> {
-    if (this.wcdb4Client) {
-      const members: Record<string, string> = {}
-      for (const session of this.wcdb4Client.getSessions()) {
-        if (!session.username.endsWith('@chatroom')) continue
-        for (const member of this.wcdb4Client.getGroupMembers(session.username)) {
-          if (member.m_nsUsrName) {
-            members[member.m_nsUsrName] = member.nickname || member.m_nsUsrName
-          }
-        }
-      }
-      return members
-    }
-
-    if (!this.correctUserId) return {}
-    const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Group/group_new.db')
-    const db = this.connectDb(dbPath)
-    if (!db) return {}
-
-    // 查询 GroupMember 表
-    const results = db.prepare('SELECT m_nsUsrName, nickname FROM GroupMember').all() as {
-      m_nsUsrName: string
-      nickname: string
-    }[]
-    db.close()
-
-    const groupMembers: Record<string, string> = {}
-    for (const row of results) {
-      if (row.m_nsUsrName && row.nickname) {
-        // 将 wxid (m_nsUsrName) 映射到昵称
-        groupMembers[row.m_nsUsrName] = row.nickname
-      }
-    }
-    return groupMembers
-  }
-
-  public getGroupMembersForChat(userMd5: string): Record<string, string> {
-    if (this.wcdb4Client) {
-      const username = this.chatMd5ToUsername.get(userMd5)
-      if (!username || !username.endsWith('@chatroom')) return {}
-
-      const members: Record<string, string> = {}
-      for (const member of this.wcdb4Client.getGroupMembers(username)) {
+    const members: Record<string, string> = {}
+    for (const session of this.wcdb4Client.getSessions()) {
+      if (!session.username.endsWith('@chatroom')) continue
+      for (const member of this.wcdb4Client.getGroupMembers(session.username)) {
        if (member.m_nsUsrName) {
          members[member.m_nsUsrName] = member.nickname || member.m_nsUsrName
        }
      }
-      return members
    }
+    return members
+  }

-    return this.getAllGroupMembers()
+  public getGroupMembersForChat(userMd5: string): Record<string, string> {
+    const username = this.chatMd5ToUsername.get(userMd5)
+    if (!username || !username.endsWith('@chatroom')) return {}
+
+    const members: Record<string, string> = {}
+    for (const member of this.wcdb4Client.getGroupMembers(username)) {
+      if (member.m_nsUsrName) {
+        members[member.m_nsUsrName] = member.nickname || member.m_nsUsrName
+      }
+    }
+    return members
  }

  public getGroupMember(wxid: string, chatroomId?: string): GroupMemberInfo | null {
-    if (this.wcdb4Client && chatroomId) {
-      return (
-        this.wcdb4Client
-          .getGroupMembers(chatroomId)
-          .find((member) => member.m_nsUsrName === wxid) || null
-      )
-    }
-
-    if (!this.correctUserId) return null
-
-    // 检查缓存
-    if (this.groupMemberCache.has(wxid)) {
-      return this.groupMemberCache.get(wxid) || null
-    }
-
-    const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Group/group_new.db')
-    const db = this.connectDb(dbPath)
-    if (!db) {
-      this.groupMemberCache.set(wxid, null)
-      return null
-    }
-
-    const result = db
-      .prepare(
-        'SELECT m_nsUsrName, nickname, m_nsHeadImgUrl FROM GroupMember WHERE m_nsUsrName = ?'
-      )
-      .get(wxid) as GroupMemberInfo
-
-    db.close()
-
-    // 写入缓存
-    this.groupMemberCache.set(wxid, result || null)
-
-    return result || null
+    if (!chatroomId) return null
+    return (
+      this.wcdb4Client
+        .getGroupMembers(chatroomId)
+        .find((member) => member.m_nsUsrName === wxid) || null
+    )
  }

  public getAllChatTables(): { name: string; db_number: string }[] {
-    return this.chatDb || []
+    return this.wcdb4Client.getChatTables()
  }

  public getMyAvatarUrl(): string | undefined {
-    return this.wcdb4Client?.getMyAvatarUrl()
+    return this.wcdb4Client.getMyAvatarUrl()
  }

-  public getWcdb4Client(): Wcdb4Client | null {
+  public getWcdb4Client(): Wcdb4Client {
    return this.wcdb4Client
  }

  public close(): void {
-    this.wcdb4Client?.close()
-    this.wcdb4Client = null
+    this.wcdb4Client.close()
  }

  public getUserMessages(userMd5: string, startTime?: number, endTime?: number): WechatMessage[] {
-    if (this.wcdb4Client) {
-      const username = this.chatMd5ToUsername.get(userMd5)
-      if (!username) return []
-      return this.wcdb4Client.getMessages(username, startTime, endTime).map((message) => ({
-        ...message,
-        ...message.raw
-      }))
-    }
-
-    if (!this.chatDb || !this.correctUserId) return []
-
-    const tableName = `Chat_${userMd5}`
-    const tableInfo = this.chatDb.find((t) => t.name === tableName)
-
-    if (!tableInfo) {
-      console.error(`No table found for ${tableName}`)
-      return []
-    }
-
-    const dbPath = path.join(
-      WechatDb.WECHAT_DIR,
-      this.correctUserId,
-      'Message',
-      tableInfo.db_number
-    )
-    const db = this.connectDb(dbPath)
-    if (!db) return []
-
-    try {
-      let query = `SELECT * FROM ${tableName}`
-      const conditions: string[] = []
-
-      // console.log(startTime, endTime, 'time range')
-
-      if (startTime) {
-        conditions.push(`msgCreateTime >= ${startTime}`)
-      }
-      if (endTime) {
-        conditions.push(`msgCreateTime <= ${endTime}`)
-      }
-
-      if (conditions.length > 0) {
-        query += ` WHERE ${conditions.join(' AND ')}`
-      }
-
-      // 添加排序以确保存储正确的顺序
-      query += ` ORDER BY msgCreateTime ASC`
-
-      const results = db.prepare(query).all() as unknown as WechatMessage[]
-      db.close()
-      return results
-    } catch (e) {
-      console.error(`Error querying messages for ${tableName}:`, e)
-      db.close()
-      return []
-    }
+    const username = this.chatMd5ToUsername.get(userMd5)
+    if (!username) return []
+    return this.wcdb4Client.getMessages(username, startTime, endTime).map((message) => ({
+      ...message,
+      ...message.raw
+    }))
  }

  public searchAllMessages(keyword: string): string | null {
-    if (this.wcdb4Client) {
-      const lowerKeyword = keyword.trim().toLowerCase()
-      if (!lowerKeyword) return null
-      for (const session of this.wcdb4Client.getSessions()) {
-        const found = this.wcdb4Client
-          .getMessages(session.username)
-          .some((message) => message.msgContent.toLowerCase().includes(lowerKeyword))
-        if (found) return `Chat_${this.md5(session.username)}`
-      }
-      return null
-    }
-
-    if (!this.correctUserId) return null
-
-    for (let i = 0; i < 10; i++) {
-      const dbName = `msg_${i}.db`
-      const dbPath = path.join(WechatDb.WECHAT_DIR, this.correctUserId, 'Message', dbName)
-      if (!fs.existsSync(dbPath)) continue
-
-      const db = this.connectDb(dbPath)
-      if (!db) continue
-
-      const tables = db
-        .prepare("SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'Chat_%'")
-        .all() as { name: string }[]
-      for (const table of tables) {
-        try {
-          // 首先检查 msgContent 列是否存在以避免错误？
-          // 或者像 Swift 代码中那样使用 try/catch "抑制错误"
-          const results = db
-            .prepare(`SELECT 1 FROM ${table.name} WHERE msgContent LIKE '%${keyword}%' LIMIT 1`)
-            .get()
-          if (results) {
-            console.log(`Found keyword in ${table.name} (${dbName})`)
-            db.close()
-            return table.name
-          }
-        } catch {
-          // 忽略没有 msgContent 的表
-        }
-      }
-      db.close()
+    const lowerKeyword = keyword.trim().toLowerCase()
+    if (!lowerKeyword) return null
+    for (const session of this.wcdb4Client.getSessions()) {
+      const found = this.wcdb4Client
+        .getMessages(session.username)
+        .some((message) => message.msgContent.toLowerCase().includes(lowerKeyword))
+      if (found) return `Chat_${this.md5(session.username)}`
    }
    return null
  }

  public md5(str: string): string {
-    return crypto.createHash('md5').update(str).digest('hex')
+    return this.wcdb4Client.md5(str)
  }
 }
@@ -39,6 +39,11 @@ declare global {
      ) => Promise<boolean | { success: boolean; error?: string; monitoring?: boolean }>
      getContacts: (filter?: string) => Promise<Contact[]>
      getMessages: (userMd5: string, startTime?: number, endTime?: number) => Promise<Message[]>
+      getGroupSnapshot: (userMd5: string) => Promise<{
+        roomId: string
+        memberCount: number
+        members: { wxid: string; nickname: string; avatar: string }[]
+      } | null>
      search: (keyword: string) => Promise<string | null>
      aiChat: (
        messages: { role: string; content: string }[],
@@ -8,6 +8,7 @@ const api = {
  getContacts: (filter?: string) => ipcRenderer.invoke('db:getContacts', filter),
  getMessages: (userMd5: string, startTime?: number, endTime?: number) =>
    ipcRenderer.invoke('db:getMessages', userMd5, startTime, endTime),
+  getGroupSnapshot: (userMd5: string) => ipcRenderer.invoke('db:getGroupSnapshot', userMd5),
  search: (keyword: string) => ipcRenderer.invoke('db:search', keyword),
  aiChat: (
    messages: { role: string; content: string }[],
@@ -21,6 +21,67 @@ const areMessagesEquivalent = (left: Message[], right: Message[]): boolean => {
  return true
 }

+type GroupSnapshot = {
+  roomId: string
+  memberCount: number
+  members: { wxid: string; nickname: string; avatar: string }[]
+}
+
+const formatGroupMemberName = (member: GroupSnapshot['members'][number]): string =>
+  member.nickname || member.wxid
+
+const buildSyntheticGroupMessages = (
+  previous: GroupSnapshot | null,
+  next: GroupSnapshot | null,
+  referenceMessages: Message[]
+): Message[] => {
+  if (!previous || !next || previous.roomId !== next.roomId) return []
+
+  const previousMap = new Map(previous.members.map((member) => [member.wxid, member]))
+  const nextMap = new Map(next.members.map((member) => [member.wxid, member]))
+  const latestMessageTime = referenceMessages.reduce(
+    (max, message) => Math.max(max, message.createTime || 0),
+    0
+  )
+  const fallbackNow = Math.floor(Date.now() / 1000)
+  const events: Message[] = []
+
+  let offset = 1
+  for (const [wxid, member] of previousMap.entries()) {
+    if (nextMap.has(wxid)) continue
+    const name = formatGroupMemberName(member)
+    const eventTime = Math.max(latestMessageTime + offset, fallbackNow)
+    const eventDate = new Date(eventTime * 1000)
+    offset += 1
+    events.push({
+      id: `synthetic-leave:${next.roomId}:${wxid}:${eventTime}`,
+      from: 'system',
+      type: '系统消息',
+      datetime: eventDate.toLocaleString('zh-CN', { hour12: false }),
+      content: `${name} 退出了群聊`,
+      isSender: false,
+      createTime: eventTime
+    })
+  }
+
+  if (events.length) {
+    console.log(
+      `[GroupMonitor] synthetic leave detected roomId=${next.roomId} events=${events
+        .map((event) => event.content)
+        .join(' | ')}`
+    )
+  }
+
+  return events
+}
+
+const sortMessagesChronologically = (items: Message[]): Message[] =>
+  [...items].sort((left, right) => {
+    const timeDelta = (left.createTime || 0) - (right.createTime || 0)
+    if (timeDelta !== 0) return timeDelta
+    return getMessageIdentity(left).localeCompare(getMessageIdentity(right))
+  })
+
 function App(): React.ReactElement {
  const [isAuthenticated, setIsAuthenticated] = useState(false)
  const [dbKey, setDbKey] = useState(import.meta.env.VITE_DB_KEY || '')
@@ -36,6 +97,8 @@ function App(): React.ReactElement {
  const [showDbKey, setShowDbKey] = useState(false)
  const [showMacKeyFaq, setShowMacKeyFaq] = useState(false)
  const [isNativeMonitorActive, setIsNativeMonitorActive] = useState(false)
+  const currentGroupSnapshotRef = React.useRef<GroupSnapshot | null>(null)
+  const syntheticGroupMessagesRef = React.useRef<Record<string, Message[]>>({})

  React.useEffect(() => {
    let active = true
@@ -84,6 +147,36 @@ function App(): React.ReactElement {
    }
  }

+  const logGroupSnapshot = React.useCallback(
+    async (contact: Contact | null, reason: string): Promise<GroupSnapshot | null> => {
+      if (!contact || contact.type !== 'group') return null
+      try {
+        const snapshot = (await window.api.getGroupSnapshot(contact.md5)) as GroupSnapshot | null
+        if (!snapshot) {
+          return null
+        }
+        return snapshot
+      } catch (error) {
+        console.warn(`[GroupSnapshot] reason=${reason} name=${contact.m_nsNickName} failed:`, error)
+        return null
+      }
+    },
+    []
+  )
+
+  const mergeSyntheticMessages = React.useCallback(
+    (contact: Contact | null, baseMessages: Message[], roomId?: string): Message[] => {
+      if (!contact || contact.type !== 'group') return baseMessages
+      const resolvedRoomId = roomId || currentGroupSnapshotRef.current?.roomId
+      if (!resolvedRoomId) return baseMessages
+      const synthetic = syntheticGroupMessagesRef.current[resolvedRoomId] || []
+      return synthetic.length
+        ? sortMessagesChronologically([...baseMessages, ...synthetic])
+        : baseMessages
+    },
+    []
+  )
+
  const handleAutoGetDbKey = async (): Promise<void> => {
    if (isFetchingDbKey) return
    setIsFetchingDbKey(true)
@@ -175,14 +268,18 @@ function App(): React.ReactElement {
    setSelectedContact(contact)
    const { startTime, endTime } = getDateRangeParams(dateRange)
    const msgs = await window.api.getMessages(contact.md5, startTime, endTime)
-    setMessages(msgs)
+    const snapshot = await logGroupSnapshot(contact, 'select-contact')
+    currentGroupSnapshotRef.current = snapshot
+    setMessages(mergeSyntheticMessages(contact, msgs, snapshot?.roomId))
  }

  const handleDateRangeChange = (range: string): void => {
    setDateRange(range)
    if (selectedContact) {
      const { startTime, endTime } = getDateRangeParams(range)
-      window.api.getMessages(selectedContact.md5, startTime, endTime).then(setMessages)
+      window.api.getMessages(selectedContact.md5, startTime, endTime).then((nextMessages) => {
+        setMessages(mergeSyntheticMessages(selectedContact, nextMessages))
+      })
    }
  }

@@ -201,9 +298,45 @@ function App(): React.ReactElement {
          range.startTime,
          range.endTime
        )
+        const latestSnapshot = await logGroupSnapshot(selectedContact, 'wcdb-change')
+        const syntheticEvents = buildSyntheticGroupMessages(
+          currentGroupSnapshotRef.current,
+          latestSnapshot,
+          latestMessages
+        )
+        if (latestSnapshot) {
+          currentGroupSnapshotRef.current = latestSnapshot
+          if (syntheticEvents.length) {
+            const existing = syntheticGroupMessagesRef.current[latestSnapshot.roomId] || []
+            const existingIds = new Set(existing.map((message) => message.id))
+            const appended = syntheticEvents.filter((message) => !existingIds.has(message.id))
+            if (appended.length) {
+              syntheticGroupMessagesRef.current[latestSnapshot.roomId] = [...existing, ...appended]
+              console.log(
+                `[GroupMonitor] merged synthetic messages roomId=${latestSnapshot.roomId} total=${syntheticGroupMessagesRef.current[latestSnapshot.roomId].length}`
+              )
+              if (!disposed) {
+                setMessages((current) =>
+                  sortMessagesChronologically([
+                    ...current,
+                    ...appended.filter(
+                      (message) =>
+                        !current.some((existingMessage) => existingMessage.id === message.id)
+                    )
+                  ])
+                )
+              }
+            }
+          }
+        }
+        const nextMessages = mergeSyntheticMessages(
+          selectedContact,
+          latestMessages,
+          latestSnapshot?.roomId
+        )
        if (!disposed) {
          setMessages((current) =>
-            areMessagesEquivalent(current, latestMessages) ? current : latestMessages
+            areMessagesEquivalent(current, nextMessages) ? current : nextMessages
          )
        }
      } catch (error) {
@@ -224,7 +357,14 @@ function App(): React.ReactElement {
      if (refreshTimer) window.clearTimeout(refreshTimer)
      unsubscribe()
    }
-  }, [dateRange, isAuthenticated, isNativeMonitorActive, selectedContact])
+  }, [
+    dateRange,
+    isAuthenticated,
+    isNativeMonitorActive,
+    selectedContact,
+    logGroupSnapshot,
+    mergeSyntheticMessages
+  ])

  const handleSearchContacts = (keyword: string): void => {
    if (!keyword) {
@@ -233,7 +233,6 @@ body {

 .wechat-message-list {
  padding: 18px 28px;
-  gap: 14px;
  background-color: #edf1f2;
  background-image:
    radial-gradient(circle at 20px 20px, rgba(0, 0, 0, 0.025) 1px, transparent 1px),
@@ -241,6 +240,10 @@ body {
  background-size: 120px 120px;
 }

+.wechat-message-row {
+  margin-bottom: 14px;
+}
+
 .wechat-message-row {
  display: flex;
  align-items: flex-start;
@@ -252,6 +255,31 @@ body {
  justify-content: flex-end;
 }

+.wechat-system-message-row {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 4px;
+  margin: 2px 0 6px;
+}
+
+.wechat-system-message {
+  max-width: min(78%, 760px);
+  padding: 6px 12px;
+  border-radius: 999px;
+  background: rgba(227, 86, 86, 0.1);
+  color: #c84a4a;
+  font-size: 12px;
+  line-height: 1.5;
+  text-align: center;
+  word-break: break-word;
+}
+
+.wechat-system-message-meta {
+  color: #a0a7ab;
+  font-size: 11px;
+}
+
 .message-avatar {
  width: 38px;
  height: 38px;
@@ -297,7 +325,6 @@ body {
  line-height: 1.55;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
  word-break: break-word;
-  white-space: pre-wrap;
 }

 .wechat-message-row.mine .message-bubble {
@@ -865,9 +892,43 @@ body {
 }

 .image-preview-modal {
-  background: transparent;
-  box-shadow: none;
-  padding: 0;
+  width: min(520px, 92vw);
+  max-height: 88vh;
+  background: #f7f8fa;
+  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
+  padding: 16px;
+  overflow: hidden;
+}
+
+.report-preview-frame {
+  border: 1px solid #d8dde3;
+  border-radius: 10px;
+  background: #eef1f4;
+  padding: 12px;
+}
+
+.report-preview-scroller {
+  max-height: calc(88vh - 120px);
+  overflow-y: auto;
+  overflow-x: hidden;
+  padding-right: 4px;
+}
+
+.report-preview-image {
+  display: block;
+  width: min(430px, 100%);
+  height: auto;
+  margin: 0 auto;
+  border-radius: 8px;
+  border: 1px solid #ccd3d9;
+  background: #fff;
+}
+
+.report-preview-actions {
+  margin-top: 12px;
+  display: flex;
+  gap: 10px;
+  flex-wrap: wrap;
 }

 .image-viewer-overlay {
@@ -304,6 +304,7 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
      <div className="message-list wechat-message-list">
        {filteredMessages.map((msg) => {
          const isMine = msg.from === 'assistant'
+          const isSystem = msg.from === 'system' || msg.type === '系统消息'
          const displayName = isMine
            ? '我'
            : isGroupChat
@@ -312,7 +313,18 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
          const avatarSrc = isMine ? msg.img : msg.img || contact.avatar
          const isVoice = msg.type === '语音'
          const isImage = msg.type === '图片'
-          const isRichMedia = ['名片', '位置', '分享消息', '通话', '表情包'].includes(msg.type)
+          const isRichMedia = ['名片', '位置', '分享消息', '通话', '表情包', '系统消息'].includes(
+            msg.type
+          )
+
+          if (isSystem) {
+            return (
+              <div key={msg.id} className="wechat-system-message-row">
+                <div className="wechat-system-message">{msg.content}</div>
+                <div className="wechat-system-message-meta">{msg.datetime}</div>
+              </div>
+            )
+          }

          return (
            <div key={msg.id} className={`wechat-message-row ${isMine ? 'mine' : 'other'}`}>
@@ -420,19 +432,16 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
      {generatedImage && (
        <div className="modal-overlay" onClick={() => setGeneratedImage(null)}>
          <div className="modal-content image-preview-modal" onClick={(e) => e.stopPropagation()}>
-            <img
-              src={generatedImage}
-              alt="Generated Summary"
-              style={{ maxWidth: '100%', maxHeight: '80vh', border: '1px solid #ccc' }}
-            />
-            <div
-              style={{
-                marginTop: '10px',
-                display: 'flex',
-                // justifyContent: 'flex-end',
-                gap: '10px'
-              }}
-            >
+            <div className="report-preview-frame">
+              <div className="report-preview-scroller">
+                <img
+                  src={generatedImage}
+                  alt="Generated Summary"
+                  className="report-preview-image"
+                />
+              </div>
+            </div>
+            <div className="report-preview-actions">
              <button
                onClick={handleCopyImage}
                style={{
@@ -22,6 +22,8 @@ export function RichMessageBubble({ contentData }: RichMessageBubbleProps): JSX.
      return <StickerBubble data={contentData} />
    case 'quote':
      return <QuoteBubble data={contentData} />
+    case 'system':
+      return <SystemBubble data={contentData} />
    case 'unknown':
      return (
        <div className="message-text">{(contentData as { raw?: string }).raw || '[未知消息]'}</div>
@@ -212,6 +214,10 @@ function QuoteBubble({ data }: { data: Extract<ParsedContent, { type: 'quote' }>
  )
 }

+function SystemBubble({ data }: { data: Extract<ParsedContent, { type: 'system' }> }): JSX.Element {
+  return <div className="message-text">{data.content || '[系统消息]'}</div>
+}
+
 function getUrlHost(url?: string): string {
  if (!url) return ''
  try {
@@ -66,7 +66,7 @@ type QuoteContent = {
  quotedSender?: string
  quotedType?: string
 }
-type SystemContent = { type: 'system'; content: string }
+type SystemContent = { type: 'system'; content: string; raw?: string }
 type UnknownContent = { type: 'unknown'; raw: string }

 export type ParsedContent =
Author	SHA1	Message	Date
电摇小子andClaude Opus 4.7	4bba8bd871	refactor: 移除微信 3.0 解密路径, 统一走 4.0 WCDB - wechat-db.ts 删除 SQLCipher 回退、connectDb、getUser、tryOpenWechat4 等 3.0 专属逻辑 - image-decrypt-service.ts 删除 decryptDatV3 与 version === 0 分支 - index.ts 去除 wcdb4Client 冗余空值检查 - 移除 better-sqlite3-multiple-ciphers 依赖 - README 版本前置改为 4.0+ Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-07-03 10:37:51 +08:00
电摇小子	30c47af1f9	fix: 修复 macOS 打包版 WCDB 初始化	2026-07-03 10:05:50 +08:00
电摇小子	77aa74dd92	style: 修改样式, 去除日志	2026-07-02 10:24:31 +08:00
电摇小子	f96ada906c	feat: 实现退群监控	2026-06-30 16:04:01 +08:00
电摇小子andClaude Opus 4.7	a50e903e55	chore: bump version to 2.0.0 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-06-30 14:39:52 +08:00