隐私政策

我们非常重视您的隐私和数据安全。本隐私政策旨在向您清晰说明 LanLink（以下简称“本应用”） 如何在您的设备上处理与保护相关信息。

一、我们不收集哪些数据

本应用的设计目标是：所有文件与数据仅在您的本地设备和局域网中流转，不上传到任何云端服务器。因此：

• 我们不会收集、上传或存储您的文件内容（包括文档、图片、视频等）。
• 我们不会收集、上传或存储您的通讯录、短信、通话记录等个人隐私数据。
• 我们不会将任何数据发送至第三方服务器用于分析、广告或其他商业目的。

二、本应用会使用到的系统权限及用途

为了实现“在局域网中分享文件”的核心功能，本应用会在本地请求一些系统权限，仅用于如下明确目的：

1. 本地网络与 WLAN 相关权限

• 本地网络访问 / 网络状态：用于在局域网中开启 HTTP 服务，允许同一网络下的浏览器访问您设备上的共享文件。
• Wi‑Fi 状态 / IP 地址：用于显示可访问地址（例如 http://192.168.x.x:端口），方便您在浏览器中打开。

这些信息仅在本地用于建立和展示局域网访问地址，不会上传到任何服务器。

2. 文件与存储权限

• 读取/写入存储（文档目录）：用于在您指定的共享目录中读取和写入文件，以便通过浏览器上传/下载。
• 打开本地文件：当您在应用内浏览文件时，可能会调用系统或其他应用打开对应文件。

所有文件操作都在您的本机文件系统和局域网内完成，本应用不会对文件内容做云端备份或上传。

3. 相册 / 照片库权限

• 访问相册：用于在 Web 端浏览和下载您设备相册中的图片和视频。
• 写入相册：在您选择将文件保存到照片库时使用。

相册中的媒体文件仅在本地枚举与读取，用于在浏览器中展示和传输，不会上传到云端。

4. 通知与后台运行权限

• 通知权限：用于在服务器启动/停止、新设备连接等事件发生时向您发送提醒。
• 后台运行 / 前台服务：用于在您切换到其他应用时保持文件服务在后台运行，以保证局域网访问不中断。

通知内容仅与本应用状态相关，不包含文件内容等敏感信息。

三、局域网访问与安全提示

当您在本应用中启动服务器后，同一网络下的其他设备可通过浏览器访问您的共享目录和相册。

• 如您开启了访问密码，Web 端访问需要输入正确的用户名和密码（用户名默认为 lanlink）。
• 密码仅以哈希形式存储在本机，用于校验；明文密码仅在设置界面本地显示，不会上传。
• 我们强烈建议您仅在可信任的私有网络（如家庭 Wi‑Fi 或个人热点）下使用本应用，不要在公共 Wi‑Fi 环境中开启服务。
• 使用完毕后，请及时在应用内停止服务器以降低风险。

四、日志记录

本应用会在本地记录少量运行日志，用于帮助您了解运行状态与排查问题，例如：

• 服务器启动/停止时间、本地访问地址。
• 是否有新设备连接（仅显示 IP 地址）。

这些日志仅保存在您的设备上，用于本地查看和调试，不会上传到任何远程服务器。

五、第三方 SDK 与开源组件

本应用使用了一些开源组件和系统级框架（如 Flutter、CocoaPods 依赖、相册访问库等），用于实现文件访问、相册访问、通知等功能。

• 这些组件只在本地运行，不会在未获您授权的情况下私自上传您的数据。
• 组件可能会使用系统提供的 API（如相册、通知、网络），其行为受操作系统自身隐私机制约束。

六、数据保留和删除

• 本应用不会在云端存储您的文件或个人信息，所有文件和配置数据均保存在您的设备本地。
• 您可以随时在应用内删除文件、清理共享目录或停止服务器。
• 卸载本应用后，与本应用相关的本地配置数据将随系统卸载流程一并删除（不影响您手动保存到其他位置的文件）。

七、儿童隐私

本应用面向普通用户，不专门针对儿童设计；我们不会主动收集任何可识别儿童身份的个人信息。 若您是未成年人，请在监护人的指导下使用本应用。

八、本隐私政策的变更

如本隐私政策有重要变更，我们会在应用内适当位置提示或更新本页面。除法律另有规定外，更新后的隐私政策一经公布即生效。

九、联系我们

如您对本隐私政策或本应用的数据处理方式有任何疑问、意见或建议，欢迎通过以下方式与我们联系：

• 电子邮件：gaorh518@gmail.com

我们会尽快审核并在合理期限内给予回复。

Privacy Policy

We take your privacy and data security seriously. This Privacy Policy explains how LanLink (“the App”) processes and protects information on your device.

1. What data we do NOT collect

The App is designed so that all files and data stay on your device and local network, and are not uploaded to any cloud server. In particular:

• We do not collect, upload, or store the contents of your files (including documents, photos, videos, etc.).
• We do not collect, upload, or store your contacts, SMS, call history, or similar personal data.
• We do not send any data to third-party servers for analytics, advertising, or other commercial purposes.

2. Permissions we request and why

To provide local file sharing over your LAN, the App requests certain system permissions, used only for the purposes described below:

2.1 Local network & Wi‑Fi

• Local network / network status: to start an HTTP server on your device so that other devices on the same network can access your shared files via a browser.
• Wi‑Fi state / IP address: to display the access URL (for example http://192.168.x.x:port) so you can open it in a browser.

This information is used only locally to establish and show the LAN access address, and is never uploaded to any server.

2.2 Files & storage

• Read/write storage (documents directory): to read and write files under the shared directory you configure, so they can be uploaded/downloaded via a browser.
• Open local files: when you browse files inside the App, we may invoke the system or other apps to open those files.

All file operations happen on your device and over your local network. The App does not perform any cloud backup or upload of file contents.

2.3 Photos / photo library

• Read photo library: to list and preview photos/videos from your device in the web interface.
• Write photo library: when you choose to save files into your photo library.

Media files from your photo library are only enumerated and read locally to display and transfer over your LAN, and are not uploaded to any cloud.

2.4 Notifications & background

• Notifications: to let you know when the server starts/stops, and when new devices connect.
• Background / foreground service: to keep the file service running in the background when you switch to other apps, so LAN access is not interrupted.

Notification content relates only to the App’s status and does not include file contents or other sensitive data.

3. LAN access & security

When you start the server in the App, other devices on the same network can access your shared directory and photos through a browser.

• If you enable a password, the web interface will require the correct username and password to log in (the default username is lanlink).
• The password is stored only as a hash on your device for verification. The plain-text password is shown only in the settings page on your device and is never uploaded.
• We strongly recommend using the App only on trusted private networks (such as home Wi‑Fi or personal hotspots), and not on public Wi‑Fi.
• After use, please stop the server in the App in a timely manner to reduce potential risks.

4. Logs

The App keeps a small amount of logs locally to help you understand its status and troubleshoot issues, for example:

• Server start/stop times and local access address.
• Whether new devices have connected (IP address only).

These logs are stored only on your device and used for local viewing and debugging. They are not uploaded to any remote server.

5. Third-party SDKs & open-source components

The App uses certain open-source components and system frameworks (such as Flutter, CocoaPods dependencies, photo access libraries, etc.) to implement file access, photo access, notifications, and related features.

• These components run locally and will not upload your data without your consent.
• They may use system APIs (e.g., Photos, Notifications, Network), and their behavior is governed by the operating system’s own privacy controls.

6. Data retention & deletion

• The App does not store your files or personal information in the cloud. All files and configuration data are kept on your device.
• You can delete files, clear the shared directory, or stop the server at any time within the App.
• When you uninstall the App, related local configuration data will be removed as part of the system’s uninstall process (this does not affect any files you have manually saved elsewhere).

7. Children’s privacy

The App is intended for general users and is not specifically directed at children. We do not knowingly collect personal information that can identify children. If you are a minor, please use the App under the guidance of a parent or guardian.

8. Changes to this Policy

If we make significant changes to this Privacy Policy, we will update this page or provide an in-app notice where appropriate. Unless otherwise required by law, the updated policy will take effect once published.

9. Contact us

If you have any questions, comments, or suggestions about this Privacy Policy or how the App handles data, please contact us:

• Email: gaorh518@gmail.com

We will review and respond within a reasonable time.