update version to 2.1.6

feat: support downloading image from online URL
feat: add keyboard shortcut Ctrl+Alt+Del
fix: fix the CSRF issue
perf: add an option to configure custom ICE servers
perf: removed unnecessary modifications to DNS configuration
perf: add an SSH enable/disable toggle in the web UI
perf: add a Tailscale enable/disable toggle in the web UI
perf: download Tailscale installation package from the official source
perf: automatic enable/disable GOMEMLIMIT on tailscale start/stop
perf: add JWT configuration
perf: implement secure password storage using bcrypt hashing
perf: implement integrity checks for online updates
refactor: refactor HDMI module and remove the dependency libmaixcam_lib.so
refactor: web terminal use pty instead of SSH
refactor: move Tailscale APIs from the network module to the extensions module

.gitignore

@@ -0,0 +1,19 @@
+*.log
+pnpm-debug.log*
+
+web/node_modules
+web/dist
+web/web
+
+.DS_Store
+*.local
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+.idea
+.vscode
+
+NanoKVM-Server

LICENSE

@@ -0,0 +1,674 @@
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+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -3,20 +3,32 @@ NanoKVM
 
 <div align="center">
 
-![](https://wiki.sipeed.com/hardware/zh/kvm/assets/NanoKVM/1_intro/NanoKVM_3.jpg)
+![](https://wiki.sipeed.com/hardware/assets/NanoKVM/introduce/NanoKVM_3.png)
 
 <h3>
-    <a href="https://wiki.sipeed.com/hardware/zh/lichee/RV_Nano/1_intro.html"> Quick Start </a> |
+    <a href="https://wiki.sipeed.com/hardware/en/kvm/NanoKVM/introduction.html"> Quick Start </a>
+    |
     <a href="https://cn.dl.sipeed.com/shareURL/KVM/nanoKVM"> Hardware </a>
 </h3>
 
-English | [中文](./README_ZH.md)
+English | [中文](./README_ZH.md) | [日本語](./README_JA.md)
 
 </div>
 
 > Your NanoKVM Power by RISC-V !
 > If you have any issues or suggestions, creating issue here, or tell us with [MaixHub Discussion](https://maixhub.com/discussion/nanokvm).
 
+## Opensource & Contribution 
+
+### Update 2025.02.05
+For users concerned about security, you can read this issue: https://github.com/sipeed/NanoKVM/issues/301 , you will find explanations addressing all security concerns.
+GitHub, as an open and transparent platform, provides a space for discussing so-called "backdoor" concerns. Open-source makes products more secure!
+
+### Update 2024.10.18
+
+We have opensourced the backend code in 10.8, and thank you for Civil PR it immediately, we will give you newest NanoKVM-PCIe as a reward！   
+The mid-Oct batch is starting testing and packaging, most order before 10.1 will ship out next and next next week.   
+The aliexpress shipping date is change to Dec since 10.1, it is a conservative delivery time. the order in Oct. should send out during 11.15~12.15.   
 
 ## Introduction
 
@@ -36,15 +48,16 @@ The NanoKVM Full is a full version with a sophisticated case and complete access
 | Video encoding  | MJPEG, H264(developing) | MJPEG, H264(developing) | MJPEG, H264 |
 | Video delay     | 90～230ms | 90～230ms | 100～230ms |
 | UEFI/BIOS               | ✓ | ✓ | ✓ |
-| Keyboard and Mouse<br>Virtual HID | ✓ | ✓ | ✓ |
-| USB storage  <br> Virtual CD-ROM | ✓ | ✓ | ✓ |
+| Virtual HID | ✓ | ✓ | ✓ |
+| Virtual CD-ROM | ✓ | ✓ | ✓ |
 | IPMI      | ✓ | ✓ | ✓ |
 | Wake-on-LAN | ✓ | ✓ | ✓ |
+| ETH | 100M/10M | 100M/10M | 1000M/100M/10M |
 | ATX power control | None，Users can connect by their own | USB interface IO control board | RJ-45 interface IO control board |
 | OLED | None，Users can connect by their own | 128x64 0.96" white | 128x32 0.91" white |
 | UART | 2 | 2 | 1 |
 | TF Card | None | ✓ | ✓ |
-| Expansion | None | WiFi or PoE | WiFi/LTE |
+| Expansion | None | PoE | WiFi/LTE |
 | Power consumption | 0.2A@5V | 0.2A@5V | Peak 2.6A@5V |
 | Power input | PC USB can be powered | PC USB or auxiliary power supply | DC 5V 3A power supply is required |
 | Cooling | Silent fanless | Silent fanless | Fan cooling |
@@ -60,9 +73,40 @@ The NanoKVM Lite is constructed by the LicheeRV Nano and HDMItoCSI board, and th
 
 The NanoKVM image is built on LicheeRV Nano SDK and MaixCDK, and is compatible with materials that use the LicheeRV Nano, opposite the KVM software cannot be used with the LicheeRV Nano or other SG2002 products. If you would like to build an HDMI input application on LicheeRV Nano or MaixCam, please contact us for technical support.
 
-+ [HDMItoCSI Schematic](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_RV_Nano_KVM_B_30131.pdf)
+Note: Out of the 256MB memory in SG2002, 158MB is currently allocated for the multimedia subsystem, which NanoKVM will use for video image acquisition and processing
+
 + [NanoKVM-A Schematic](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_RV_Nano_KVM_A_30111.pdf)
 + [NanoKVM-B Schematic](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_HDMI_MIPI_31011.pdf)
++ [NanoKVM img](https://github.com/sipeed/NanoKVM/releases/tag/NanoKVM)
+
+## Roadmap
+
+### Q1 2025
+
+**Enhancements:**
+
+- [ ] Refactor the HDMI module and remove the libmaixcam_lib.so dependency
+- [ ] Disable SSH by default and add an enable/disable toggle in the web UI
+- [ ] Disable Tailscale by default and add an enable/disable toggle in the web UI
+- [ ] Add JWT configuration options to the configuration file
+
+**Distribution:**
+
+- [ ] Distribute applications via GitHub
+- [ ] Implement integrity checks for online updates
+- [ ] Support offline updates
+
+**Bug Fixes:**
+
+- [ ] Fix the DNS issue
+- [ ] Fix the CSRF vulnerability
+
+## Where to buy
+
+* [Aliexpress(global except USA&Russia)](https://www.aliexpress.com/item/1005007369816019.html)
+* [淘宝](https://item.taobao.com/item.htm?id=811206560480)
+* [Preorder (anyother country that not support in Aliexpress or Taobao)](https://sipeed.com/nanokvm)
+
 
 ## Community
 

README_JA.md

@@ -0,0 +1,87 @@
+# NanoKVM
+
+<div align="center">
+
+![](https://wiki.sipeed.com/hardware/assets/NanoKVM/introduce/NanoKVM_3.png)
+
+<h3>
+    <a href="https://wiki.sipeed.com/hardware/zh/lichee/RV_Nano/1_intro.html"> クイックスタート </a> |
+    <a href="https://cn.dl.sipeed.com/shareURL/KVM/nanoKVM"> ハードウェア </a>
+</h3>
+
+[English](./README.md) | [中文](./README_ZH.md) | 日本語
+
+</div>
+
+> Your NanoKVM Power by RISC-V !
+> 使用中に問題や提案がある場合は、ここで issue を提出するか、[MaixHub Discussion](https://maixhub.com/discussion/nanokvm) でお知らせください。
+
+## オープンソース & 貢献 & 出荷
+
+スターが2Kに近づいています！10月中旬にバックエンドのソースコードを整理してオープンソース化します！（また、10.1前のすべての予約注文が出荷される時期でもあります）
+
+### 10.18 更新
+
+10.8にバックエンドコードをオープンソース化しました。すぐにPRを提出してくれたCivilに感謝します。最新のNanoKVM-PCIeを報酬として提供します！
+10月中旬のバッチはテストとパッケージングを開始しており、10.1前のほとんどの注文は次週と次々週に出荷されます。
+10.1以降、アリエクスプレスの出荷日は12月に変更されました。これは保守的な納期です。10月の注文は11.15〜12.15の間に発送される予定です。
+
+## 紹介
+
+Lichee NanoKVMは、LicheeRV NanoをベースにしたIP-KVM製品で、LicheeRV Nanoの極小サイズと強力な機能を継承しています。
+Lichee NanoKVMは2つのバージョンがあります：
+NanoKVM Liteは基本構成で、一定のDIY能力を持つ個人ユーザーや大量のニーズを持つ企業ユーザーに適しています。
+NanoKVM Fullは完全版で、洗練されたケースと完全なアクセサリーを備え、起動時にすぐに使用できるシステムミラーカードが内蔵されており、個人ユーザーに推奨されます。
+
+![](https://wiki.sipeed.com/hardware/zh/kvm/assets/NanoKVM/1_intro/NanoKVM_1.jpg)
+
+## 技術仕様
+
+| 製品 | NanoKVM (Lite) | NanoKVM (Full) | PiKVM V4 |
+| --- | --- | --- | --- |
+| 計算ユニット | LicheeRV Nano(RISCV) | LicheeRV Nano(RISCV) | CM4 (ARM) |
+| 解像度 | 1080P @ 60fps | 1080P @ 60fps | 1080P @ 60fps |
+| ビデオエンコーディング | MJPEG, H264(開発中) | MJPEG, H264(開発中) | MJPEG, H264 |
+| ビデオ遅延 | 90～230ms | 90～230ms | 100～230ms |
+| UEFI/BIOS | ✓ | ✓ | ✓ |
+| 仮想HID | ✓ | ✓ | ✓ |
+| 仮想CD-ROM | ✓ | ✓ | ✓ |
+| IPMI | ✓ | ✓ | ✓ |
+| Wake-on-LAN | ✓ | ✓ | ✓ |
+| ETH | 100M/10M | 100M/10M | 1000M/100M/10M |
+| ATX電源制御 | なし、ユーザーが自分で接続 | USBインターフェースIO制御ボード | RJ-45インターフェースIO制御ボード |
+| OLED | なし、ユーザーが自分で接続 | 128x64 0.96" 白 | 128x32 0.91" 白 |
+| UART | 2 | 2 | 1 |
+| TFカード | なし | ✓ | ✓ |
+| 拡張 | なし | PoE | WiFi/LTE |
+| 消費電力 | 0.2A@5V | 0.2A@5V | ピーク2.6A@5V |
+| 電源入力 | PC USBで給電可能 | PC USBまたは補助電源 | DC 5V 3A電源が必要 |
+| 冷却 | 静音ファンレス | 静音ファンレス | ファン冷却 |
+| サイズ | 23x37x15mm <br> ～1/30 PiKVM V4サイズ | 40x36x36mm <br/> ～1/7 PiKVM V4サイズ | 120x68x44mm |
+
+![](https://wiki.sipeed.com/hardware/zh/kvm/assets/NanoKVM/1_intro/NanoKVM_2.jpg)
+
+## ハードウェアプラットフォーム NanoKVM
+
+NanoKVMはSipeed [LicheeRV Nano](https://wiki.sipeed.com/hardware/zh/lichee/RV_Nano/1_intro.html)に基づいており、仕様、回路図、寸法図は[こちら](http://cn.dl.sipeed.com/shareURL/LICHEE/LicheeRV_Nano)で確認できます。
+
+NanoKVM LiteはLicheeRV NanoとHDMItoCSIボードで構成され、NanoKVM FULLはNanoKVM LiteにNanoKVM-A/Bボードとシェルを追加しています。HDMItoCSIボードはHDMI信号を変換するために使用されます。NanoKVM-AにはOLED、ATX制御出力（USB Type-Cインターフェース）、補助電源供給およびATX電源オン/オフおよびリセットボタンが含まれています。NanoKVM-Bは一端がAボードに接続され、他端がコンピュータのATXピンに接続され、コンピュータの電源をリモートで制御します。
+
+NanoKVMイメージはLicheeRV Nano SDKおよびMaixCDKに基づいて構築されており、LicheeRV Nanoを使用する資料と互換性があります。逆に、KVMソフトウェアはLicheeRV Nanoや他のSG2002製品では使用できません。LicheeRV NanoやMaixCamでHDMI入力アプリケーションを構築したい場合は、技術サポートを受けるためにお問い合わせください。
+
+注：SG2002の256MBメモリのうち、現在105MBがマルチメディアサブシステムに割り当てられており、NanoKVMはビデオ画像の取得と処理にこのメモリを使用します。
+
++ [NanoKVM-A 回路図](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_RV_Nano_KVM_A_30111.pdf)
++ [NanoKVM-B 回路図](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_HDMI_MIPI_31011.pdf)
++ [NanoKVM イメージダウンロード](https://github.com/sipeed/NanoKVM/releases/tag/NanoKVM)
+
+## 購入方法
+
+* [Aliexpress(グローバル、米国とロシアを除く)](https://www.aliexpress.com/item/1005007369816019.html)
+* [淘宝](https://item.taobao.com/item.htm?id=811206560480)
+* [予約注文 (淘宝とアリエクスプレスがサポートされていない国)](https://sipeed.com/nanokvm)
+
+## コミュニティ
+
+* [MaixHub Discussion](https://maixhub.com/discussion/nanokvm)
+* QQグループ: 703230713

README_ZH.md

@@ -3,14 +3,14 @@ NanoKVM
 
 <div align="center">
 
-![](https://wiki.sipeed.com/hardware/zh/kvm/assets/NanoKVM/1_intro/NanoKVM_3.jpg)
+![](https://wiki.sipeed.com/hardware/assets/NanoKVM/introduce/NanoKVM_3.png)
 
 <h3>
     <a href="https://wiki.sipeed.com/hardware/zh/lichee/RV_Nano/1_intro.html"> 快速开始 </a> |
     <a href="https://cn.dl.sipeed.com/shareURL/KVM/nanoKVM"> 硬件资料 </a>
 </h3>
 
-[English](./README.md) | 中文
+[English](./README.md) | 中文 | [日本語](./README_JA.md)
 
 </div>
 
@@ -36,15 +36,16 @@ NanoKVM Full 为完整版配置，带精致外壳和完整配件，内置开机
 | 视频编码                | MJPEG, H264(developing) | MJPEG, H264(developing) | MJPEG, H264 |
 | 视频延迟                | 90～230ms | 90～230ms | 100～230ms |
 | UEFI/BIOS               | ✓ | ✓ | ✓ |
-| 模拟USB键鼠 <br>Virtual HID | ✓ | ✓ | ✓ |
-| 模拟USB存储 <br> Virtual CD-ROM | ✓ | ✓ | ✓ |
+| 模拟USB键鼠 | ✓ | ✓ | ✓ |
+| 模拟USB存储 | ✓ | ✓ | ✓ |
 | IPMI      | ✓ | ✓ | ✓ |
 | Wake-on-LAN | ✓ | ✓ | ✓ |
+| ETH | 100M/10M | 100M/10M | 1000M/100M/10M |
 | ATX电源控制 | 无，用户可自行连接 | USB接口IO控制板 | RJ45接口IO控制板 |
 | OLED显示 | 无，用户可自行扩展 | 128x64 0.96" white | 128x32 0.91" white |
 | 外接串口 | 2路 | 2路 | 1路 |
 | TF卡 | 无，用户自备 | 有，开机即用 | 有 |
-| 扩展配件 | 无 | WiFi 或 PoE | WiFi/LTE |
+| 扩展配件 | 无 | PoE | WiFi/LTE |
 | 功耗 | 0.2A@5V | 0.2A@5V | Peak 2.6A@5V |
 | 电源输入 | PC USB即可供电 | PC USB即可供电 <br> 也支持额外辅助供电 | 需要DC 5V 3A供电 |
 | 散热 | 静音无风扇 | 静音无风扇 | 需要风扇主动散热 |
@@ -60,14 +61,20 @@ NanoKVM Lite 由 LicheeRV Nano E 和 HDMItoCSI 小板构成，NanoKVM FULL 在 N
 
 NanoKVM 镜像在LicheeRV Nano SDK 和 MaixCDK 基础上构建，可以兼容使用 LicheeRV Nano 的资料，反之LicheeRV Nano 或其他 SG2002 产品无法使用KVM软件。如果您想在 LicheeRV Nano 或 MaixCam 上构建 HDMI输入相关应用，请与我们联系，以获得技术支持。
 
-+ [HDMItoCSI 板原理图](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_RV_Nano_KVM_B_30131.pdf)
+注: SG2002的256MB内存中, 目前划分105MB用于多媒体子系统, NanoKVM会在视频图像采集和处理中使用这部分内存.
+
 + [NanoKVM-A 原理图](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_RV_Nano_KVM_A_30111.pdf)
 + [NanoKVM-B 原理图](https://cn.dl.sipeed.com/fileList/KVM/nanoKVM/HDK/02_Schematic/SCH_HDMI_MIPI_31011.pdf)
++ [NanoKVM 镜像下载](https://github.com/sipeed/NanoKVM/releases/tag/NanoKVM)
+
+
+## 购买渠道
+
+* [Aliexpress(全球，除了美国和俄罗斯)](https://www.aliexpress.com/item/1005007369816019.html)
+* [淘宝](https://item.taobao.com/item.htm?id=811206560480)
+* [Preorder (其它不支持淘宝和速卖通的国家)](https://sipeed.com/nanokvm)
 
 ## 社区
 
 * [MaixHub Discussion](https://maixhub.com/discussion/nanokvm)
 * QQ group: 703230713
-
-
-

server/README.md

@@ -0,0 +1,98 @@
+# NanoKVM Server
+
+This is the backend server implementation for NanoKVM.
+
+For detailed documentation, please visit our [Wiki](https://wiki.sipeed.com/nanokvm).
+
+## Structure
+
+```shell
+server
+├── common       // Common utility components
+├── config       // Server configuration
+├── dl_lib       // Shared object libraries
+├── include      // Header files for shared objects
+├── logger       // Logging system
+├── middleware   // Server middleware components 
+├── proto        // API request/response definitions
+├── router       // API route handlers
+├── service      // Core service implementations
+├── utils        // Utility functions
+└── main.go
+```
+
+## Configuration
+
+The configuration file path is `/etc/kvm/server.yaml`.
+
+```yaml
+proto: http
+port:
+    http: 80
+    https: 443
+cert:
+    crt: server.crt
+    key: server.key
+
+# Log level (debug/info/warn/error)
+# Note: Use 'info' or 'error' in production, 'debug' only for development
+logger:
+    level: info
+    file: stdout
+    
+# Authentication setting (enable/disable)
+# Note: Only disable authentication in development environment
+authentication: enable
+
+jwt:
+   # JWT secret key. If left empty, a random 64-byte key will be generated automatically.
+   secretKey: ""
+   # JWT token expiration time in seconds. Default: 2678400 (31 days)
+   refreshTokenDuration: 2678400
+   # Invalidate all JWT tokens when the user logs out. Default: true
+   revokeTokensOnLogout: true
+
+# Address for custom STUN server
+stun: stun.l.google.com:19302
+
+# Address and authentication for custom TURN server
+turn:
+    turnAddr: turn.cloudflare.com:3478
+    turnUser: example_user
+    turnCred: example_cred
+```
+
+
+## Compile & Deploy
+
+Note: Use Linux operating system (x86-64). This build process is not compatible with ARM, Windows or macOS.
+
+1. Install the Toolchain
+    1. Download the toolchain from the following link: [Download Link](https://sophon-file.sophon.cn/sophon-prod-s3/drive/23/03/07/16/host-tools.tar.gz).
+    2. Extract the file and add the `host-tools/gcc/riscv64-linux-musl-x86_64/bin` directory to your PATH environment variable.
+    3. Run `riscv64-unknown-linux-musl-gcc -v`. If there is version information in the output, the installation is successful.
+
+2. Compile the Project
+    1. Run `cd server` from the project root directory.
+    2. Run `go mod tidy` to install Go dependencies.
+    3. Run `CGO_ENABLED=1 GOOS=linux GOARCH=riscv64 CC=riscv64-unknown-linux-musl-gcc CGO_CFLAGS="-mcpu=c906fdv -march=rv64imafdcv0p7xthead -mcmodel=medany -mabi=lp64d" go build` to compile the project.
+    4. After compilation, an executable file named `NanoKVM-Server` will be generated.
+
+3. Modify RPATH
+    1. Run `sudo apt install patchelf` or `pip install patchelf` to install patchelf.
+    2. Run `patchelf --version`. Ensure the version is 0.14 or higher`.
+    3. Run `patchelf --add-rpath \$ORIGIN/dl_lib NanoKVM-Server` to modify the RPATH of the executable file.
+
+4. Deploy the Application
+    1. File uploads requires SSH. Please enable it in the Web Settings: `Settings > SSH`;
+    2. Replace the original file in the NanoKVM `/kvmapp/server/` directory with the newly compiled `NanoKVM-Server`.
+    3. Restart the service on NanoKVM by executing `/etc/init.d/S95nanokvm restart`.
+
+## Manually Update
+
+> File uploads requires SSH. Please enable it in the Web Settings: `Settings > SSH`;
+
+1. Download the latest application from [GitHub](https://github.com/sipeed/NanoKVM/releases);
+2. Unzip the downloaded file and rename the unzipped folder to `kvmapp`;
+3. Back up the existing `/kvmapp` directory on your NanoKVM, then replace it with the new `kvmapp` folder;
+4. Run `/etc/init.d/S95nanokvm restart` on your NanoKVM to restart the service.

server/README_JA.md

@@ -0,0 +1,82 @@
+# NanoKVM サーバー
+
+これは NanoKVM のバックエンドサーバーの実装です。
+
+詳細なドキュメントについては、[Wiki](https://wiki.sipeed.com/nanokvm) を参照してください。
+
+## 構造
+
+```shell
+server
+├── common       // 共通ユーティリティコンポーネント
+├── config       // サーバー設定
+├── dl_lib       // 共有オブジェクトライブラリ
+├── include      // 共有オブジェクトのヘッダーファイル
+├── logger       // ロギングシステム
+├── middleware   // サーバーミドルウェアコンポーネント
+├── proto        // API リクエスト/レスポンス定義
+├── router       // API ルートハンドラ
+├── service      // コアサービスの実<E381AE><E5AE9F>
+├── utils        // ユーティリティ関数
+└── main.go
+```
+
+## 設定
+
+設定ファイルのパスは `/etc/kvm/server.yaml` です。
+
+```yaml
+proto: http
+port:
+    http: 80
+    https: 443
+cert:
+    crt: server.crt
+    key: server.key
+
+# ログレベル (debug/info/warn/error)
+# 注意: 本番環境では 'info' または 'error' を使用し、'debug' は開発環境でのみ使用してください
+logger:
+    level: info
+    file: stdout
+    
+# 認証設定 (enable/disable)
+# 注意: 認証を無効にするのは開発環境でのみ行ってください
+authentication: enable
+
+# JWT 秘密鍵の設定
+# 空のままにすると、サーバー起動時にランダムな鍵が生成されます
+secretKey: ""
+
+stun: stun.l.google.com:19302
+
+turn:
+    turnAddr: turn.cloudflare.com:3478
+    turnUser: example_user
+    turnCred: example_cred
+```
+
+## コンパイルとデプロイ
+
+注意: Linux オペレーティングシステム (x86-64) を使用してください。このビルドプロセスは ARM、Windows、macOS では互換性がありません。
+
+1. ツールチェーンのインストール
+    1. 以下のリンクからツールチェーンをダウンロードします: [ダウンロードリンク](https://sophon-file.sophon.cn/sophon-prod-s3/drive/23/03/07/16/host-tools.tar.gz)。
+    2. ファイルを解凍し、`host-tools/gcc/riscv64-linux-musl-x86_64/bin` ディレクトリを PATH 環境変数に追加します。
+    3. `riscv64-unknown-linux-musl-gcc -v` を実行します。バージョン情報が表示されれば、インストールは成功です。
+
+2. プロジェクトのコンパイル
+    1. プロジェクトのルートディレクトリから `cd server` を実行します。
+    2. `go mod tidy` を実行して Go の依存関係をインストールします。
+    3. `CGO_ENABLED=1 GOOS=linux GOARCH=riscv64 CC=riscv64-unknown-linux-musl-gcc CGO_CFLAGS="-mcpu=c906fdv -march=rv64imafdcv0p7xthead -mcmodel=medany -mabi=lp64d" go build` を実行してプロジェクトをコンパイルします。
+    4. コンパイルが完了すると、`NanoKVM-Server` という名前の実行ファイルが生成されます。
+
+3. RPATH の変更
+    1. `sudo apt install patchelf` または `pip install patchelf` を実行して patchelf をインストールします。
+    2. `patchelf --version` を実行します。バージョンが 0.14 以上であることを確認します。
+    3. `patchelf --add-rpath \$ORIGIN/dl_lib NanoKVM-Server` を実行して、実行ファイルの RPATH を変更します。
+
+4. アプリケーションのデプロイ
+    1. デプロイ前に、ブラウザでアプリケーションを最新バージョンに更新します。手順は[こちら](https://wiki.sipeed.com/hardware/en/kvm/NanoKVM/system/updating.html)を参照してください。
+    2. コンパイルして生成された `NanoKVM-Server` ファイルを使用して、NanoKVM の `/kvmapp/server/` ディレクトリ内の元のファイルを置き換えます。
+    3. NanoKVM で `/etc/init.d/S95nanokvm restart` を実行してサービスを再起動します。

server/README_ZH.md

@@ -0,0 +1,93 @@
+# NanoKVM Server
+
+NanoKVM 后端服务的代码。更多文档请参考 [Wiki](https://wiki.sipeed.com/nanokvm) 。
+
+## 目录结构
+
+```shell
+server
+├── common       // 公用组件
+├── config       // 服务配置
+├── dl_lib       // so 文件
+├── include      // 头文件
+├── logger       // 服务日志
+├── middleware   // 中间件
+├── proto        // api 请求响应参数
+├── router       // api 路由
+├── service      // api 处理逻辑
+├── utils        // 工具函数
+└── main.go
+```
+
+## 配置文件
+
+配置文件路径为 `/etc/kvm/server.yaml`。
+
+```yaml
+proto: http
+port:
+    http: 80
+    https: 443
+cert:
+    crt: server.crt
+    key: server.key
+    
+# 日志级别（debug/info/warn/error）
+# 注意：在生产环境中使用 info 或 error。debug 模式仅在开发环境中使用。
+logger:
+    level: info
+    file: stdout
+    
+# 鉴权设置（enable/disable）
+# 注意：生产环境中请勿使用 disable。
+authentication: enable
+
+jwt:
+   # jwt 密钥。设置为空则使用随机生成的64位密钥
+   secretKey: ""
+   # jwt token 过期时间（单位：秒），默认为2678400（31天）
+   refreshTokenDuration: 2678400
+   # 在帐号登出时是否使所有 jwt token 失效。默认为 true
+   revokeTokensOnLogout: true
+
+stun: stun.l.google.com:19302
+
+turn:
+    turnAddr: turn.cloudflare.com:3478
+    turnUser: example_user
+    turnCred: example_cred
+```
+
+## 编译部署
+
+**注意：请使用 Linux 操作系统（x86-64）。该工具链无法在 ARM、Windows 或 macOS 下使用。**
+
+1. 安装工具链
+   1. 下载工具链：[下载地址](https://sophon-file.sophon.cn/sophon-prod-s3/drive/23/03/07/16/host-tools.tar.gz)；
+   2. 解压下载文件，然后将 `host-tools/gcc/riscv64-linux-musl-x86_64/bin` 目录加入到环境变量；
+   3. 执行 `riscv64-unknown-linux-musl-gcc -v`，如果显示版本信息则安装成功。
+
+2. 编译
+   1. 在项目根目录下执行 `cd server` 进入 server 目录；
+   2. 执行 `go mod tidy` 安装 Go 依赖包；
+   3. 执行 `CGO_ENABLED=1 GOOS=linux GOARCH=riscv64 CC=riscv64-unknown-linux-musl-gcc CGO_CFLAGS="-mcpu=c906fdv -march=rv64imafdcv0p7xthead -mcmodel=medany -mabi=lp64d" go build` 进行编译；
+   4. 编译完成后，会生成可执行文件 `NanoKVM-Server`。
+
+3. 修改 RPATH
+   1. 执行 `sudo apt install patchelf` 或 `pip install patchelf` 安装 patchelf；
+   2. 执行 `patchelf --version`，确保版本大于等于 0.14；
+   3. 执行 `patchelf --add-rpath \$ORIGIN/dl_lib NanoKVM-Server` 修改可执行文件的 RPATH 属性。
+
+4. 部署
+   1. 上传文件需要启用 SSH 功能。请在 Web `设置 - SSH` 中检查 SSH 是否已经启用； 
+   2. 使用编译生成的 `NanoKVM-Server` 文件，替换 NanoKVM 中 `/kvmapp/server/` 目录下的原始文件； 
+   3. 在 NanoKVM 中执行 `/etc/init.d/S95nanokvm restart` 重启服务。
+
+## 手动更新
+
+> 请确保已经在 Web 界面的 `设置 - SSH` 中启用了 SSH 功能，以便上传文件。
+
+1. 从 [GitHub](https://github.com/sipeed/NanoKVM/releases) 下载最新的应用安装包；
+2. 解压缩下载的安装包，并将解压后的文件夹重命名为 `kvmapp`；
+3. 备份 NanoKVM 系统中的 `/kvmapp` 目录，然后用解压后的 `kvmapp` 文件夹替换现有目录。
+4. 在 NanoKVM 中执行 `/etc/init.d/S95nanokvm restart` 重启服务。

server/common/cgo.go

@@ -0,0 +1,163 @@
+package common
+
+/*
+	#cgo CFLAGS: -I../include
+	#cgo LDFLAGS: -L../dl_lib -lkvm
+	#include "kvm_vision.h"
+*/
+import "C"
+import (
+	"NanoKVM-Server/config"
+	"strings"
+	"sync"
+	"unsafe"
+
+	log "github.com/sirupsen/logrus"
+)
+
+var (
+	kvmVision     *KvmVision
+	kvmVisionOnce sync.Once
+)
+
+type KvmVision struct {
+	mutex sync.Mutex
+}
+
+func GetKvmVision() *KvmVision {
+	kvmVisionOnce.Do(func() {
+		kvmVision = &KvmVision{}
+
+		conf := config.GetInstance()
+		logLevel := strings.ToLower(conf.Logger.Level)
+
+		logEnable := C.uint8_t(0)
+		if logLevel == "debug" {
+			logEnable = C.uint8_t(1)
+		}
+
+		C.kvmv_init(logEnable)
+		log.Debugf("kvm vision initialized")
+	})
+
+	return kvmVision
+}
+
+func (k *KvmVision) ReadMjpeg(width uint16, height uint16, quality uint16) (data []byte, result int) {
+	k.mutex.Lock()
+	defer k.mutex.Unlock()
+
+	var (
+		kvmData  *C.uint8_t
+		dataSize C.uint32_t
+	)
+
+	result = int(C.kvmv_read_img(
+		C.uint16_t(width),
+		C.uint16_t(height),
+		C.uint8_t(0),
+		C.uint16_t(quality),
+		&kvmData,
+		&dataSize,
+	))
+	if result < 0 {
+		log.Errorf("failed to read kvm image: %v", result)
+		return
+	}
+	defer C.free_kvmv_data(&kvmData)
+
+	data = C.GoBytes(unsafe.Pointer(kvmData), C.int(dataSize))
+
+	log.Debugf("read kvm image: %v", result)
+	return
+}
+
+func (k *KvmVision) ReadH264(width uint16, height uint16, bitRate uint16) (data []byte, sps []byte, pps []byte, result int) {
+	k.mutex.Lock()
+	defer k.mutex.Unlock()
+
+	var (
+		kvmData  *C.uint8_t
+		dataSize C.uint32_t
+	)
+
+	result = int(C.kvmv_read_img(
+		C.uint16_t(width),
+		C.uint16_t(height),
+		C.uint8_t(1),
+		C.uint16_t(bitRate),
+		&kvmData,
+		&dataSize,
+	))
+	if result < 0 {
+		log.Errorf("failed to read kvm image: %v", result)
+		return
+	}
+	defer C.free_kvmv_data(&kvmData)
+
+	data = C.GoBytes(unsafe.Pointer(kvmData), C.int(dataSize))
+
+	if result == 3 {
+		sps, _ = k.ReadH264SPS()
+		pps, _ = k.ReadH264PPS()
+	}
+
+	log.Debugf("read kvm image: %v", result)
+	return
+}
+
+func (k *KvmVision) ReadH264SPS() ([]byte, int) {
+	var (
+		kvmData  *C.uint8_t
+		dataSize C.uint32_t
+	)
+
+	result := int(C.kvmv_get_sps_frame(&kvmData, &dataSize))
+	if result < 0 {
+		log.Errorf("failed to read sps: %v", result)
+		return nil, result
+	}
+
+	data := C.GoBytes(unsafe.Pointer(kvmData), C.int(dataSize))
+
+	return data, result
+}
+
+func (k *KvmVision) ReadH264PPS() ([]byte, int) {
+	var (
+		kvmData  *C.uint8_t
+		dataSize C.uint32_t
+	)
+
+	result := int(C.kvmv_get_pps_frame(&kvmData, &dataSize))
+	if result < 0 {
+		log.Errorf("failed to read pps: %v", result)
+		return nil, result
+	}
+
+	data := C.GoBytes(unsafe.Pointer(kvmData), C.int(dataSize))
+	return data, result
+}
+
+func (k *KvmVision) SetHDMI(enable bool) int {
+	hdmiEnable := C.uint8_t(0)
+	if enable {
+		hdmiEnable = C.uint8_t(1)
+	}
+
+	result := int(C.kvmv_hdmi_control(hdmiEnable))
+	if result < 0 {
+		log.Errorf("failed to set hdmi to %t", enable)
+		return result
+	}
+
+	return result
+}
+
+func (k *KvmVision) Close() {
+	k.mutex.Lock()
+	defer k.mutex.Unlock()
+
+	C.kvmv_deinit()
+	log.Debugf("stop kvm vision...")
+}

server/common/screen.go

@@ -0,0 +1,85 @@
+package common
+
+import "sync"
+
+type Screen struct {
+	Width   uint16
+	Height  uint16
+	FPS     int
+	Quality uint16
+	BitRate uint16
+}
+
+var (
+	screen     *Screen
+	screenOnce sync.Once
+)
+
+// ResolutionMap height to width
+var ResolutionMap = map[uint16]uint16{
+	1080: 1920,
+	720:  1280,
+	600:  800,
+	480:  640,
+	0:    0,
+}
+
+var QualityMap = map[uint16]bool{
+	100: true,
+	80:  true,
+	60:  true,
+	50:  true,
+}
+
+var BitRateMap = map[uint16]bool{
+	5000: true,
+	3000: true,
+	2000: true,
+	1000: true,
+}
+
+func GetScreen() *Screen {
+	screenOnce.Do(func() {
+		screen = &Screen{
+			Width:   0,
+			Height:  0,
+			Quality: 80,
+			FPS:     30,
+			BitRate: 3000,
+		}
+	})
+
+	return screen
+}
+
+func SetScreen(key string, value int) {
+	switch key {
+	case "resolution":
+		height := uint16(value)
+		if width, ok := ResolutionMap[height]; ok {
+			screen.Width = width
+			screen.Height = height
+		}
+
+	case "quality":
+		if value > 100 {
+			screen.BitRate = uint16(value)
+		} else {
+			screen.Quality = uint16(value)
+		}
+
+	case "fps":
+		screen.FPS = validateFPS(value)
+	}
+}
+
+func validateFPS(fps int) int {
+	if fps > 60 {
+		return 60
+	}
+	if fps < 10 {
+		return 10
+	}
+
+	return fps
+}

server/config/config.go

@@ -0,0 +1,122 @@
+package config
+
+import (
+	"bytes"
+	"errors"
+	"log"
+	"os"
+	"sync"
+
+	"github.com/spf13/viper"
+	"gopkg.in/yaml.v3"
+)
+
+var (
+	instance Config
+	once     sync.Once
+)
+
+func GetInstance() *Config {
+	once.Do(initialize)
+
+	return &instance
+}
+
+func initialize() {
+	if err := readByFile(); err != nil {
+		if errors.As(err, &viper.ConfigFileNotFoundError{}) {
+			create()
+		}
+
+		if err = readByDefault(); err != nil {
+			log.Fatalf("Failed to read default configuration!")
+		}
+
+		log.Println("using default configuration")
+	}
+
+	if err := validate(); err != nil {
+		log.Fatalf("Failed to validate configuration!")
+	}
+
+	if err := viper.Unmarshal(&instance); err != nil {
+		log.Fatalf("Failed to parse configuration: %s", err)
+	}
+
+	checkDefaultValue()
+
+	if instance.Authentication == "disable" {
+		log.Println("NOTICE: Authentication is disabled! Please ensure your service is secure!")
+	}
+
+	log.Println("config loaded successfully")
+}
+
+func readByFile() error {
+	viper.SetConfigName("server")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath("/etc/kvm/")
+
+	return viper.ReadInConfig()
+}
+
+func readByDefault() error {
+	data, err := yaml.Marshal(defaultConfig)
+	if err != nil {
+		log.Printf("failed to marshal default config: %s", err)
+		return err
+	}
+
+	return viper.ReadConfig(bytes.NewBuffer(data))
+}
+
+// Create configuration file.
+func create() {
+	var (
+		file *os.File
+		data []byte
+		err  error
+	)
+
+	_ = os.MkdirAll("/etc/kvm", 0o644)
+
+	file, err = os.OpenFile("/etc/kvm/server.yaml", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o644)
+	if err != nil {
+		log.Printf("open config failed: %s", err)
+		return
+	}
+	defer func() {
+		_ = file.Close()
+	}()
+
+	if data, err = yaml.Marshal(defaultConfig); err != nil {
+		log.Printf("failed to marshal default config: %s", err)
+		return
+	}
+
+	if _, err = file.Write(data); err != nil {
+		log.Printf("failed to save config: %s", err)
+		return
+	}
+
+	if err = file.Sync(); err != nil {
+		log.Printf("failed to sync config: %s", err)
+		return
+	}
+
+	log.Println("create file /etc/kvm/server.yaml with default configuration")
+}
+
+// Validate the configuration. This is to ensure compatibility with earlier versions.
+func validate() error {
+	if viper.GetInt("port.http") > 0 && viper.GetInt("port.https") > 0 {
+		return nil
+	}
+
+	_ = os.Remove("/etc/kvm/server.yaml")
+	log.Println("delete empty configuration file")
+
+	create()
+
+	return readByDefault()
+}

server/config/default.go

@@ -0,0 +1,50 @@
+package config
+
+var defaultConfig = &Config{
+	Proto: "http",
+	Port: Port{
+		Http:  80,
+		Https: 443,
+	},
+	Cert: Cert{
+		Crt: "server.crt",
+		Key: "server.key",
+	},
+	Logger: Logger{
+		Level: "info",
+		File:  "stdout",
+	},
+	JWT: JWT{
+		SecretKey:            "",
+		RefreshTokenDuration: 2678400,
+		RevokeTokensOnLogout: true,
+	},
+	Stun: "stun.l.google.com:19302",
+	Turn: Turn{
+		TurnAddr: "turn.cloudflare.com:3478",
+		TurnUser: "",
+		TurnCred: "",
+	},
+	Authentication: "enable",
+}
+
+func checkDefaultValue() {
+	if instance.JWT.SecretKey == "" {
+		instance.JWT.SecretKey = generateRandomSecretKey()
+		instance.JWT.RevokeTokensOnLogout = true
+	}
+
+	if instance.JWT.RefreshTokenDuration == 0 {
+		instance.JWT.RefreshTokenDuration = 2678400
+	}
+
+	if instance.Stun == "" {
+		instance.Stun = "stun.l.google.com:19302"
+	}
+
+	if instance.Authentication == "" {
+		instance.Authentication = "enable"
+	}
+
+	instance.Hardware = getHardware()
+}

server/config/hardware.go

@@ -0,0 +1,92 @@
+package config
+
+import (
+	"os"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type HWVersion int
+
+const (
+	HWVersionAlpha HWVersion = iota
+	HWVersionBeta
+	HWVersionPcie
+
+	HWVersionFile = "/etc/kvm/hw"
+)
+
+var HWAlpha = Hardware{
+	Version:      HWVersionAlpha,
+	GPIOReset:    "/sys/class/gpio/gpio507/value",
+	GPIOPower:    "/sys/class/gpio/gpio503/value",
+	GPIOPowerLED: "/sys/class/gpio/gpio504/value",
+	GPIOHDDLed:   "/sys/class/gpio/gpio505/value",
+}
+
+var HWBeta = Hardware{
+	Version:      HWVersionBeta,
+	GPIOReset:    "/sys/class/gpio/gpio505/value",
+	GPIOPower:    "/sys/class/gpio/gpio503/value",
+	GPIOPowerLED: "/sys/class/gpio/gpio504/value",
+	GPIOHDDLed:   "",
+}
+
+var HWPcie = Hardware{
+	Version:      HWVersionPcie,
+	GPIOReset:    "/sys/class/gpio/gpio505/value",
+	GPIOPower:    "/sys/class/gpio/gpio503/value",
+	GPIOPowerLED: "/sys/class/gpio/gpio504/value",
+	GPIOHDDLed:   "",
+}
+
+func (h HWVersion) String() string {
+	switch h {
+	case HWVersionAlpha:
+		return "Alpha"
+	case HWVersionBeta:
+		return "Beta"
+	case HWVersionPcie:
+		return "PCIE"
+	default:
+		return "Unknown"
+	}
+}
+
+func getHwVersion() HWVersion {
+	content, err := os.ReadFile(HWVersionFile)
+	if err != nil {
+		return HWVersionAlpha
+	}
+
+	version := strings.ReplaceAll(string(content), "\n", "")
+	if version == "beta" {
+		return HWVersionBeta
+	} else if version == "pcie" {
+		return HWVersionPcie
+	}
+
+	return HWVersionAlpha
+}
+
+func getHardware() (h Hardware) {
+	version := getHwVersion()
+
+	switch version {
+	case HWVersionAlpha:
+		h = HWAlpha
+
+	case HWVersionBeta:
+		h = HWBeta
+
+	case HWVersionPcie:
+		h = HWPcie
+
+	default:
+		h = HWAlpha
+		log.Error("Unsupported hardware version: %s", version)
+	}
+
+	return
+}

server/config/jwt.go

@@ -0,0 +1,28 @@
+package config
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+	"time"
+)
+
+// RegenerateSecretKey regenerate secret key when logout
+func RegenerateSecretKey() {
+	if instance.JWT.RevokeTokensOnLogout {
+		instance.JWT.SecretKey = generateRandomSecretKey()
+	}
+}
+
+// Generate random string for secret key.
+func generateRandomSecretKey() string {
+	b := make([]byte, 64)
+	_, err := rand.Read(b)
+	if err != nil {
+		currentTime := time.Now().UnixNano()
+		timeString := fmt.Sprintf("%d", currentTime)
+		return fmt.Sprintf("%064s", timeString)
+	}
+
+	return base64.URLEncoding.EncodeToString(b)
+}

server/config/types.go

@@ -0,0 +1,49 @@
+package config
+
+type Config struct {
+	Proto          string `yaml:"proto"`
+	Port           Port   `yaml:"port"`
+	Cert           Cert   `yaml:"cert"`
+	Logger         Logger `yaml:"logger"`
+	Authentication string `yaml:"authentication"`
+	JWT            JWT    `yaml:"jwt"`
+	Stun           string `yaml:"stun"`
+	Turn           Turn   `yaml:"turn"`
+
+	Hardware Hardware `yaml:"-"`
+}
+
+type Logger struct {
+	Level string `yaml:"level"`
+	File  string `yaml:"file"`
+}
+
+type Port struct {
+	Http  int `yaml:"http"`
+	Https int `yaml:"https"`
+}
+
+type Cert struct {
+	Crt string `yaml:"crt"`
+	Key string `yaml:"key"`
+}
+
+type JWT struct {
+	SecretKey            string `yaml:"secretKey"`
+	RefreshTokenDuration uint64 `yaml:"refreshTokenDuration"`
+	RevokeTokensOnLogout bool   `yaml:"revokeTokensOnLogout"`
+}
+
+type Turn struct {
+	TurnAddr string `yaml:"turnAddr"`
+	TurnUser string `yaml:"turnUser"`
+	TurnCred string `yaml:"turnCred"`
+}
+
+type Hardware struct {
+	Version      HWVersion `yaml:"-"`
+	GPIOReset    string    `yaml:"-"`
+	GPIOPower    string    `yaml:"-"`
+	GPIOPowerLED string    `yaml:"-"`
+	GPIOHDDLed   string    `yaml:"-"`
+}

server/go.mod

@@ -0,0 +1,79 @@
+module NanoKVM-Server
+
+go 1.22.1
+
+require (
+	github.com/creack/pty v1.1.24
+	github.com/gin-gonic/contrib v0.0.0-20240508051311-c1c6bf0061b0
+	github.com/gin-gonic/gin v1.10.0
+	github.com/go-playground/validator/v10 v10.20.0
+	github.com/golang-jwt/jwt/v5 v5.2.1
+	github.com/gorilla/websocket v1.5.3
+	github.com/mervick/aes-everywhere/go/aes256 v0.0.0-20240803013625-6759956693c0
+	github.com/pion/webrtc/v4 v4.0.1
+	github.com/rs/cors/wrapper/gin v0.0.0-20240830163046-1084d89a1692
+	github.com/sirupsen/logrus v1.9.3
+	github.com/spf13/viper v1.19.0
+	github.com/unrolled/secure v1.15.0
+	golang.org/x/crypto v0.31.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pion/datachannel v1.5.9 // indirect
+	github.com/pion/dtls/v3 v3.0.3 // indirect
+	github.com/pion/ice/v4 v4.0.2 // indirect
+	github.com/pion/interceptor v0.1.37 // indirect
+	github.com/pion/logging v0.2.2 // indirect
+	github.com/pion/mdns/v2 v2.0.7 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtcp v1.2.14 // indirect
+	github.com/pion/rtp v1.8.9 // indirect
+	github.com/pion/sctp v1.8.33 // indirect
+	github.com/pion/sdp/v3 v3.0.9 // indirect
+	github.com/pion/srtp/v3 v3.0.4 // indirect
+	github.com/pion/stun/v3 v3.0.0 // indirect
+	github.com/pion/transport/v3 v3.0.7 // indirect
+	github.com/pion/turn/v4 v4.0.0 // indirect
+	github.com/rs/cors v1.11.0 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	github.com/wlynxg/anet v0.0.3 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+)

server/go.sum

@@ -0,0 +1,185 @@
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+github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
+github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
+github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
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+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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server/include/kvm_vision.h

@@ -0,0 +1,63 @@
+
+
+#ifndef KVM_VISION_H_
+#define KVM_VISION_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include <fcntl.h> /* low-level i/o */
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#define IMG_BUFFER_FULL			-3
+#define IMG_VENC_ERROR			-2
+#define IMG_NOT_EXIST			-1
+#define IMG_MJPEG_TYPE			0
+#define IMG_H264_TYPE_SPS		1
+#define IMG_H264_TYPE_PPS		2
+#define IMG_H264_TYPE_IF		3
+#define IMG_H264_TYPE_PF		4
+
+void kvmv_init(uint8_t _debug_info_en);
+/**********************************************************************************
+ * @name    kvmv_read_img
+ * @author  Sipeed BuGu
+ * @date    2024/10/25
+ * @version R1.0
+ * @brief   Acquire the encoded image with auto init
+ * @param	_width				@input: 	Output image width
+ * @param	_height				@input: 	Output image height
+ * @param	_type				@input: 	Encode type
+ * @param	_qlty				@input: 	MJPEG: (50-100) | H264:  (500-10000)
+ * @param	_pp_kvm_data		@output: 	Encode data
+ * @param	_p_kvmv_data_size	@output: 	Encode data size
+ * @return
+        -4: Modifying image resolution, please wait
+        -3: img buffer full
+        -2: VENC Error
+        -1: No images were acquired
+         0: Acquire MJPEG encoded images
+         1: Acquire H264 encoded images(SPS)
+         2: Acquire H264 encoded images(PPS)
+         3: Acquire H264 encoded images(I)
+         4: Acquire H264 encoded images(P)
+ **********************************************************************************/
+int kvmv_read_img(uint16_t _width, uint16_t _height, uint8_t _type, uint16_t _qlty, uint8_t** _pp_kvm_data, uint32_t* _p_kvmv_data_size);
+int kvmv_get_sps_frame(uint8_t** _pp_kvm_data, uint32_t* _p_kvmv_data_size);
+int kvmv_get_pps_frame(uint8_t** _pp_kvm_data, uint32_t* _p_kvmv_data_size);
+int free_kvmv_data(uint8_t ** _pp_kvm_data);
+void free_all_kvmv_data();
+void set_h264_gop(uint8_t _gop);
+void kvmv_deinit();
+uint8_t kvmv_hdmi_control(uint8_t _en);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // KVM_VISION_H_

server/logger/formatter.go

@@ -0,0 +1,42 @@
+package logger
+
+import (
+	"bytes"
+	"fmt"
+	"path/filepath"
+
+	"github.com/sirupsen/logrus"
+)
+
+type formatter struct{}
+
+func (f *formatter) Format(entry *logrus.Entry) ([]byte, error) {
+	var (
+		text   string
+		buffer *bytes.Buffer
+	)
+
+	if entry.Buffer != nil {
+		buffer = entry.Buffer
+	} else {
+		buffer = &bytes.Buffer{}
+	}
+
+	now := entry.Time.Format("2006-01-02 15:04:05")
+
+	if entry.HasCaller() {
+		fileName := filepath.Base(entry.Caller.File)
+		text = fmt.Sprintf(
+			"[%s] [%s] [%s:%d] %s\n",
+			now, entry.Level, fileName, entry.Caller.Line, entry.Message,
+		)
+	} else {
+		text = fmt.Sprintf(
+			"[%s] [%s] %s \n",
+			now, entry.Level, entry.Message,
+		)
+	}
+
+	buffer.WriteString(text)
+	return buffer.Bytes(), nil
+}

server/logger/logger.go

@@ -0,0 +1,51 @@
+package logger
+
+import (
+	"os"
+	"path/filepath"
+
+	"NanoKVM-Server/config"
+
+	"github.com/sirupsen/logrus"
+)
+
+func openLogFile(filename string) (*os.File, error) {
+	absPath, err := filepath.Abs(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	file, err := os.OpenFile(absPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
+	if err != nil {
+		return nil, err
+	}
+
+	return file, nil
+}
+
+func Init() {
+	conf := config.GetInstance()
+
+	level, err := logrus.ParseLevel(conf.Logger.Level)
+	if err != nil {
+		level = logrus.ErrorLevel
+	}
+
+	logrus.SetLevel(level)
+	if conf.Logger.File == "" || conf.Logger.File == "stdout" {
+		logrus.SetOutput(os.Stdout)
+	} else {
+		fh, err := openLogFile(conf.Logger.File)
+		if err != nil {
+			logrus.Error("open log file failed:", err)
+			logrus.SetOutput(os.Stdout)
+		} else {
+			logrus.SetOutput(fh)
+		}
+	}
+
+	logrus.SetReportCaller(true)
+	logrus.SetFormatter(&formatter{})
+
+	logrus.Info("logger set success")
+}

server/main.go

@@ -0,0 +1,91 @@
+package main
+
+import (
+	"NanoKVM-Server/common"
+	"NanoKVM-Server/config"
+	"NanoKVM-Server/logger"
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/router"
+	"NanoKVM-Server/utils"
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	cors "github.com/rs/cors/wrapper/gin"
+)
+
+func main() {
+	initialize()
+	defer dispose()
+
+	run()
+}
+
+func initialize() {
+	logger.Init()
+
+	// init screen parameters
+	_ = common.GetScreen()
+
+	// init HDMI
+	vision := common.GetKvmVision()
+	vision.SetHDMI(false)
+	time.Sleep(10 * time.Millisecond)
+	vision.SetHDMI(true)
+
+	utils.InitGoMemLimit()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
+	go func() {
+		sig := <-sigChan
+		log.Printf("\nReceived signal: %v\n", sig)
+
+		dispose()
+		os.Exit(0)
+	}()
+}
+
+func run() {
+	conf := config.GetInstance()
+
+	gin.SetMode(gin.ReleaseMode)
+	r := gin.New()
+	r.Use(gin.Recovery())
+
+	if conf.Authentication == "disable" {
+		r.Use(cors.AllowAll())
+	}
+
+	router.Init(r)
+
+	httpAddr := fmt.Sprintf(":%d", conf.Port.Http)
+	httpsAddr := fmt.Sprintf(":%d", conf.Port.Https)
+	log.Printf("proto: %s, port: %d %d\n", conf.Proto, conf.Port.Http, conf.Port.Https)
+
+	if conf.Proto == "https" {
+		r.Use(middleware.Tls())
+
+		go func() {
+			if err := r.Run(httpAddr); err != nil {
+				panic("start http server failed")
+			}
+		}()
+
+		if err := r.RunTLS(httpsAddr, conf.Cert.Crt, conf.Cert.Key); err != nil {
+			panic("start https server failed")
+		}
+	} else {
+		if err := r.Run(httpAddr); err != nil {
+			panic("start http server failed")
+		}
+	}
+}
+
+func dispose() {
+	common.GetKvmVision().Close()
+}

server/middleware/jwt.go

@@ -0,0 +1,75 @@
+package middleware
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+	log "github.com/sirupsen/logrus"
+
+	"NanoKVM-Server/config"
+)
+
+type Token struct {
+	Username string `json:"username"`
+	jwt.RegisteredClaims
+}
+
+func CheckToken() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		conf := config.GetInstance()
+
+		if conf.Authentication == "disable" {
+			c.Next()
+			return
+		}
+
+		cookie, err := c.Cookie("nano-kvm-token")
+		if err == nil {
+			_, err = ParseJWT(cookie)
+			if err == nil {
+				c.Next()
+				return
+			}
+		}
+
+		c.JSON(http.StatusUnauthorized, "unauthorized")
+		c.Abort()
+	}
+}
+
+func GenerateJWT(username string) (string, error) {
+	conf := config.GetInstance()
+
+	expireDuration := time.Duration(conf.JWT.RefreshTokenDuration) * time.Second
+
+	claims := Token{
+		Username: username,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(expireDuration)),
+		},
+	}
+
+	t := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+
+	return t.SignedString([]byte(conf.JWT.SecretKey))
+}
+
+func ParseJWT(jwtToken string) (*Token, error) {
+	conf := config.GetInstance()
+
+	t, err := jwt.ParseWithClaims(jwtToken, &Token{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(conf.JWT.SecretKey), nil
+	})
+	if err != nil {
+		log.Debugf("parse jwt error: %s", err)
+		return nil, err
+	}
+
+	if claims, ok := t.Claims.(*Token); ok && t.Valid {
+		return claims, nil
+	} else {
+		return nil, err
+	}
+}

server/middleware/tls.go

@@ -0,0 +1,26 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/unrolled/secure"
+)
+
+func Tls() gin.HandlerFunc {
+	secureMiddleware := secure.New(secure.Options{
+		SSLRedirect: true,
+	})
+
+	secureFunc := func(c *gin.Context) {
+		err := secureMiddleware.Process(c.Writer, c.Request)
+		if err != nil {
+			c.Abort()
+			return
+		}
+
+		if status := c.Writer.Status(); status > 300 && status < 399 {
+			c.Abort()
+		}
+	}
+
+	return secureFunc
+}

server/proto/application.go

@@ -0,0 +1,6 @@
+package proto
+
+type GetVersionRsp struct {
+	Current string `json:"current"`
+	Latest  string `json:"latest"`
+}

server/proto/auth.go

@@ -0,0 +1,28 @@
+package proto
+
+type LoginReq struct {
+	Username string `validate:"required"`
+	Password string `validate:"required"`
+}
+
+type LoginRsp struct {
+	Token string `json:"token"`
+}
+
+type GetAccountRsp struct {
+	Username string `json:"username"`
+}
+
+type ChangePasswordReq struct {
+	Username string `json:"username" validate:"required"`
+	Password string `json:"password" validate:"required"`
+}
+
+type IsPasswordUpdatedRsp struct {
+	IsUpdated bool `json:"isUpdated"`
+}
+
+type ConnectWifiReq struct {
+	Ssid     string `validate:"required"`
+	Password string `valid:"required"`
+}

server/proto/download.go

@@ -0,0 +1,11 @@
+package proto
+
+type ImageEnabledRsp struct {
+	Enabled bool `json:"enabled"`
+}
+
+type StatusImageRsp struct {
+	Status     string `json:"status"`
+	File       string `json:"file"`
+	Percentage string `json:"percentage"`
+}

server/proto/network.go

@@ -0,0 +1,39 @@
+package proto
+
+type WakeOnLANReq struct {
+	Mac string `form:"mac" validate:"required"`
+}
+
+type GetMacRsp struct {
+	Macs []string `json:"macs"`
+}
+
+type DeleteMacReq struct {
+	Mac string `form:"mac" validate:"required"`
+}
+
+type TailscaleState string
+
+const (
+	TailscaleNotInstall TailscaleState = "notInstall"
+	TailscaleNotRunning TailscaleState = "notRunning"
+	TailscaleNotLogin   TailscaleState = "notLogin"
+	TailscaleStopped    TailscaleState = "stopped"
+	TailscaleRunning    TailscaleState = "running"
+)
+
+type GetTailscaleStatusRsp struct {
+	State   TailscaleState `json:"state"`
+	Name    string         `json:"name"`
+	IP      string         `json:"ip"`
+	Account string         `json:"account"`
+}
+
+type LoginTailscaleRsp struct {
+	Url string `json:"url"`
+}
+
+type GetWifiRsp struct {
+	Supported bool `json:"supported"`
+	Connected bool `json:"connected"`
+}

server/proto/request.go

@@ -0,0 +1,49 @@
+package proto
+
+import (
+	"os"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-playground/validator/v10"
+	log "github.com/sirupsen/logrus"
+)
+
+var env = os.Getenv(gin.EnvGinMode)
+
+// ValidateRequest Validates request parameters.
+func ValidateRequest(req interface{}) error {
+	validate := validator.New()
+
+	if err := validate.Struct(req); err != nil {
+		log.Errorf("validate request failed, err: %s", err)
+		return err
+	}
+
+	if env == "" || env == "debug" {
+		log.Debugf("request: %+v\n", req)
+	}
+
+	return nil
+}
+
+// ParseQueryRequest Validates GET requests.
+func ParseQueryRequest(c *gin.Context, req interface{}) error {
+	var err error
+	if err = c.ShouldBindQuery(req); err != nil {
+		log.Errorf("parse request failed, err: %s", err)
+		return err
+	}
+
+	return ValidateRequest(req)
+}
+
+// ParseFormRequest Validates POST Requests.
+func ParseFormRequest(c *gin.Context, req interface{}) error {
+	var err error
+	if err = c.ShouldBind(req); err != nil {
+		log.Errorf("parse request failed, err: %s", err)
+		return err
+	}
+
+	return ValidateRequest(req)
+}

server/proto/response.go

@@ -0,0 +1,50 @@
+package proto
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+type Response struct {
+	Code int         `json:"code"` // Status code. 0-success, others-failure
+	Msg  string      `json:"msg"`  // Status details
+	Data interface{} `json:"data"` // Returned data
+}
+
+func (r *Response) Ok() {
+	r.Code = 0
+	r.Msg = "success"
+}
+
+func (r *Response) OkWithData(data interface{}) {
+	r.Ok()
+	r.Data = data
+}
+
+func (r *Response) Err(code int, msg string) {
+	r.Code = code
+	r.Msg = msg
+}
+
+// OkRsp Successful response without data.
+func (r *Response) OkRsp(c *gin.Context) {
+	r.Ok()
+
+	c.JSON(http.StatusOK, r)
+}
+
+// OkRspWithData Successful response with data.
+func (r *Response) OkRspWithData(c *gin.Context, data interface{}) {
+	r.Ok()
+	r.Data = data
+
+	c.JSON(http.StatusOK, r)
+}
+
+// ErrRsp Failed response.
+func (r *Response) ErrRsp(c *gin.Context, code int, msg string) {
+	r.Err(code, msg)
+
+	c.JSON(http.StatusOK, r)
+}

server/proto/storage.go

@@ -0,0 +1,13 @@
+package proto
+
+type GetImagesRsp struct {
+	Files []string `json:"files"`
+}
+
+type MountImageReq struct {
+	File string `json:"file" validate:"omitempty"`
+}
+
+type GetMountedImageRsp struct {
+	File string `json:"file"`
+}

server/proto/stream.go

@@ -0,0 +1,9 @@
+package proto
+
+type GetFrameDetectRsp struct {
+	Enabled bool `json:"enabled"`
+}
+
+type UpdateFrameDetectRsp struct {
+	Enabled bool `json:"enabled"`
+}

server/proto/vm.go

@@ -0,0 +1,85 @@
+package proto
+
+type GetInfoRsp struct {
+	Ip          string `json:"ip"`
+	Mdns        string `json:"mdns"`
+	Image       string `json:"image"`
+	Application string `json:"application"`
+	DeviceKey   string `json:"deviceKey"`
+}
+
+type GetHardwareRsp struct {
+	Version string `json:"version"`
+}
+
+type SetGpioReq struct {
+	Type     string `validate:"required"`  // reset / power
+	Duration uint   `validate:"omitempty"` // press time (unit: milliseconds)
+}
+
+type GetGpioRsp struct {
+	PWR bool `json:"pwr"` // power led
+	HDD bool `json:"hdd"` // hdd led
+}
+
+type SetScreenReq struct {
+	Type  string `validate:"required"` // resolution / fps / quality
+	Value int    `validate:"number"`   // value
+}
+
+type GetScriptsRsp struct {
+	Files []string `json:"files"`
+}
+
+type UploadScriptRsp struct {
+	File string `json:"file"`
+}
+
+type RunScriptReq struct {
+	Name string `validate:"required"`
+	Type string `validate:"required"` // foreground | background
+}
+
+type RunScriptRsp struct {
+	Log string `json:"log"`
+}
+
+type DeleteScriptReq struct {
+	Name string `validate:"required"`
+}
+
+type GetVirtualDeviceRsp struct {
+	Network bool `json:"network"`
+	Disk    bool `json:"disk"`
+}
+
+type UpdateVirtualDeviceReq struct {
+	Device string `validate:"required"`
+}
+
+type UpdateVirtualDeviceRsp struct {
+	On bool `json:"on"`
+}
+
+type SetMemoryLimitReq struct {
+	Enabled bool  `json:"enabled"`
+	Limit   int64 `json:"limit"`
+}
+
+type GetMemoryLimitRsp struct {
+	Enabled bool  `json:"enabled"`
+	Limit   int64 `json:"limit"`
+}
+
+type SetOledReq struct {
+	Sleep int `json:"sleep"`
+}
+
+type GetOLEDRsp struct {
+	Exist bool `json:"exist"`
+	Sleep int  `json:"sleep"`
+}
+
+type GetSSHStateRsp struct {
+	Enabled bool `json:"enabled"`
+}

server/router/application.go

@@ -0,0 +1,16 @@
+package router
+
+import (
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/application"
+
+	"github.com/gin-gonic/gin"
+)
+
+func applicationRouter(r *gin.Engine) {
+	service := application.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/application/version", service.GetVersion) // get application version
+	api.POST("/application/update", service.Update)     // update application
+}

server/router/auth.go

@@ -0,0 +1,21 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/auth"
+)
+
+func authRouter(r *gin.Engine) {
+	service := auth.NewService()
+
+	r.POST("/api/auth/login", service.Login) // login
+
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/auth/password", service.IsPasswordUpdated) // is password updated
+	api.GET("/auth/account", service.GetAccount)         // get account
+	api.POST("/auth/password", service.ChangePassword)   // change password
+	api.POST("/auth/logout", service.Logout)             // logout
+}

server/router/download.go

@@ -0,0 +1,17 @@
+package router
+
+import (
+	"NanoKVM-Server/service/download"
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+)
+
+func downloadRouter(r *gin.Engine) {
+	service := download.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.POST("/download/image", service.DownloadImage)       // download image
+	api.GET("/download/image/status", service.StatusImage)   // download image
+	api.GET("/download/image/enabled", service.ImageEnabled) // download image
+}

server/router/extensions.go

@@ -0,0 +1,25 @@
+package router
+
+import (
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/extensions/tailscale"
+
+	"github.com/gin-gonic/gin"
+)
+
+func extensionsRouter(r *gin.Engine) {
+	api := r.Group("/api/extensions").Use(middleware.CheckToken())
+
+	ts := tailscale.NewService()
+
+	api.POST("/tailscale/install", ts.Install)     // install tailscale
+	api.POST("/tailscale/uninstall", ts.Uninstall) // uninstall tailscale
+	api.GET("/tailscale/status", ts.GetStatus)     // get tailscale status
+	api.POST("/tailscale/up", ts.Up)               // run tailscale up
+	api.POST("/tailscale/down", ts.Down)           // run tailscale down
+	api.POST("/tailscale/login", ts.Login)         // tailscale login
+	api.POST("/tailscale/logout", ts.Logout)       // tailscale logout
+	api.POST("/tailscale/start", ts.Start)         // tailscale start
+	api.POST("/tailscale/stop", ts.Stop)           // tailscale stop
+	api.POST("/tailscale/restart", ts.Restart)     // tailscale restart
+}

server/router/hid.go

@@ -0,0 +1,16 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/hid"
+)
+
+func hidRouter(r *gin.Engine) {
+	service := hid.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.POST("/hid/reset", service.Reset) // reset hid
+	api.POST("/hid/paste", service.Paste) // paste
+}

server/router/network.go

@@ -0,0 +1,22 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/network"
+)
+
+func networkRouter(r *gin.Engine) {
+	service := network.NewService()
+
+	r.POST("/api/network/wifi", service.ConnectWifi) // connect Wi-Fi
+
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.POST("/network/wol", service.WakeOnLAN)       // wake on lan
+	api.GET("/network/wol/mac", service.GetMac)       // get mac list
+	api.DELETE("/network/wol/mac", service.DeleteMac) // delete mac
+
+	api.GET("/network/wifi", service.GetWifi) // get Wi-Fi information
+}

server/router/router.go

@@ -0,0 +1,42 @@
+package router
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/gin-gonic/contrib/static"
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+)
+
+func Init(r *gin.Engine) {
+	web(r)
+	server(r)
+	log.Debugf("router init done")
+}
+
+func web(r *gin.Engine) {
+	execPath, err := os.Executable()
+	if err != nil {
+		panic("invalid executable path")
+	}
+
+	execDir := filepath.Dir(execPath)
+	webPath := fmt.Sprintf("%s/web", execDir)
+
+	r.Use(static.Serve("/", static.LocalFile(webPath, true)))
+}
+
+func server(r *gin.Engine) {
+	authRouter(r)
+	applicationRouter(r)
+	vmRouter(r)
+	streamRouter(r)
+	storageRouter(r)
+	networkRouter(r)
+	hidRouter(r)
+	wsRouter(r)
+	downloadRouter(r)
+	extensionsRouter(r)
+}

server/router/storage.go

@@ -0,0 +1,17 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/storage"
+)
+
+func storageRouter(r *gin.Engine) {
+	service := storage.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/storage/image", service.GetImages)               // get image list
+	api.GET("/storage/image/mounted", service.GetMountedImage) // get mounted image
+	api.POST("/storage/image/mount", service.MountImage)       // mount image
+}

server/router/stream.go

@@ -0,0 +1,20 @@
+package router
+
+import (
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/stream/h264"
+	"NanoKVM-Server/service/stream/mjpeg"
+
+	"github.com/gin-gonic/gin"
+)
+
+func streamRouter(r *gin.Engine) {
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/stream/mjpeg", mjpeg.Connect)                      // mjpeg stream
+	api.GET("/stream/mjpeg/detect", mjpeg.GetFrameDetect)        // get frame detect state
+	api.POST("/stream/mjpeg/detect", mjpeg.UpdateFrameDetect)    // update frame detect state
+	api.POST("/stream/mjpeg/detect/stop", mjpeg.StopFrameDetect) // temporary stop frame detect
+
+	api.GET("/stream/h264", h264.Connect) // h264 stream
+}

server/router/vm.go

@@ -0,0 +1,42 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/vm"
+)
+
+func vmRouter(r *gin.Engine) {
+	service := vm.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/vm/info", service.GetInfo)         // get device information
+	api.GET("/vm/hardware", service.GetHardware) // get hardware version
+
+	api.POST("/vm/gpio", service.SetGpio)     // update gpio
+	api.GET("/vm/gpio", service.GetGpio)      // get gpio
+	api.POST("/vm/screen", service.SetScreen) // update screen
+
+	api.GET("/vm/terminal", service.Terminal) // web terminal
+
+	api.GET("/vm/script", service.GetScripts)           // get script
+	api.POST("/vm/script/upload", service.UploadScript) // upload script
+	api.POST("/vm/script/run", service.RunScript)       // run script
+	api.DELETE("/vm/script", service.DeleteScript)      // delete script
+
+	api.GET("/vm/device/virtual", service.GetVirtualDevice)     // get virtual device
+	api.POST("/vm/device/virtual", service.UpdateVirtualDevice) // update virtual device
+
+	api.GET("/vm/memory/limit", service.GetMemoryLimit)  // get memory limit
+	api.POST("/vm/memory/limit", service.SetMemoryLimit) // set memory limit
+
+	api.GET("/vm/oled", service.GetOLED)  // get OLED configuration
+	api.POST("/vm/oled", service.SetOLED) // set OLED configuration
+
+	api.POST("/vm/hdmi/reset", service.ResetHdmi) // reset hdmi (pcie only)
+
+	api.GET("/vm/ssh", service.GetSSHState)         // get SSH state
+	api.POST("/vm/ssh/enable", service.EnableSSH)   // enable SSH
+	api.POST("/vm/ssh/disable", service.DisableSSH) // disable SSH
+}

server/router/ws.go

@@ -0,0 +1,15 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/service/ws"
+)
+
+func wsRouter(r *gin.Engine) {
+	service := ws.NewService()
+	api := r.Group("/api").Use(middleware.CheckToken())
+
+	api.GET("/ws", service.Connect)
+}

server/service/application/service.go

@@ -0,0 +1,15 @@
+package application
+
+const (
+	BaseURL = "https://cdn.sipeed.com/nanokvm"
+
+	AppDir    = "/kvmapp"
+	BackupDir = "/root/old"
+	CacheDir  = "/root/.kvmcache"
+)
+
+type Service struct{}
+
+func NewService() *Service {
+	return &Service{}
+}

server/service/application/update.go

@@ -0,0 +1,222 @@
+package application
+
+import (
+	"crypto/sha512"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+
+	"NanoKVM-Server/proto"
+	"NanoKVM-Server/utils"
+)
+
+const (
+	maxTries = 3
+)
+
+type Latest struct {
+	Version string `json:"version"`
+	Name    string `json:"name"`
+	Sha512  string `json:"sha512"`
+	Size    uint   `json:"size"`
+}
+
+func (s *Service) GetVersion(c *gin.Context) {
+	var rsp proto.Response
+
+	// current version
+	currentVersion := "1.0.0"
+
+	versionFile := fmt.Sprintf("%s/version", AppDir)
+	if version, err := os.ReadFile(versionFile); err == nil {
+		currentVersion = strings.ReplaceAll(string(version), "\n", "")
+	}
+
+	log.Debugf("current version: %s", currentVersion)
+
+	// latest version
+	latest, err := getLatest()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "get latest version failed")
+		return
+	}
+
+	rsp.OkRspWithData(c, &proto.GetVersionRsp{
+		Current: currentVersion,
+		Latest:  latest.Version,
+	})
+}
+
+func (s *Service) Update(c *gin.Context) {
+	var rsp proto.Response
+
+	if err := update(); err != nil {
+		rsp.ErrRsp(c, -1, fmt.Sprintf("update failed: %s", err))
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("update application success")
+
+	// Sleep for a second before restarting the device
+	time.Sleep(1 * time.Second)
+
+	_ = exec.Command("sh", "-c", "/etc/init.d/S95nanokvm restart").Run()
+}
+
+func update() error {
+	_ = os.RemoveAll(CacheDir)
+	_ = os.MkdirAll(CacheDir, 0o755)
+	defer func() {
+		_ = os.RemoveAll(CacheDir)
+	}()
+
+	// get latest information
+	latest, err := getLatest()
+	if err != nil {
+		return err
+	}
+
+	// download
+	url := fmt.Sprintf("%s/%s", BaseURL, latest.Name)
+	target := fmt.Sprintf("%s/%s", CacheDir, latest.Name)
+
+	if err := download(url, target); err != nil {
+		log.Errorf("download app failed: %s", err)
+		return err
+	}
+
+	// check sha512
+	if err := checksum(target, latest.Sha512); err != nil {
+		log.Errorf("check sha512 failed: %s", err)
+		return err
+	}
+
+	// decompress
+	dir, err := utils.UnTarGz(target, CacheDir)
+	log.Debugf("untar: %s", dir)
+	if err != nil {
+		log.Errorf("decompress app failed: %s", err)
+		return err
+	}
+
+	// backup old version
+	if err := os.RemoveAll(BackupDir); err != nil {
+		log.Errorf("remove backup failed: %s", err)
+		return err
+	}
+
+	if err := utils.MoveFilesRecursively(AppDir, BackupDir); err != nil {
+		log.Errorf("backup app failed: %s", err)
+		return err
+	}
+
+	// update
+	if err := utils.MoveFilesRecursively(dir, AppDir); err != nil {
+		log.Errorf("failed to move update back in place: %s", err)
+		return err
+	}
+
+	// modify permissions
+	if err := utils.ChmodRecursively(AppDir, 0o755); err != nil {
+		log.Errorf("chmod failed: %s", err)
+		return err
+	}
+
+	return nil
+}
+
+func getLatest() (*Latest, error) {
+	url := fmt.Sprintf("%s/latest.json?now=%d", BaseURL, time.Now().Unix())
+
+	resp, err := http.Get(url)
+	if err != nil {
+		log.Debugf("failed to request version: %v", err)
+		return nil, err
+	}
+	defer func() {
+		_ = resp.Body.Close()
+	}()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Errorf("failed to read response: %v", err)
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		log.Errorf("server responded with status code: %d", resp.StatusCode)
+		return nil, err
+	}
+
+	var latest Latest
+	if err := json.Unmarshal(body, &latest); err != nil {
+		log.Errorf("failed to unmarshal response: %s", err)
+		return nil, err
+	}
+
+	log.Debugf("get application latest version: %s", latest.Version)
+	return &latest, nil
+}
+
+func download(url string, target string) (err error) {
+	for i := range maxTries {
+		log.Debugf("attempt #%d/%d", i+1, maxTries)
+		if i > 0 {
+			time.Sleep(time.Second * 3) // wait for 3 seconds before retrying the download attempt
+		}
+
+		var req *http.Request
+		req, err = http.NewRequest("GET", url, nil)
+		if err != nil {
+			log.Errorf("new request err: %s", err)
+			continue
+		}
+
+		log.Debugf("update will be saved to: %s", target)
+		err = utils.Download(req, target)
+		if err != nil {
+			log.Errorf("downloading latest application failed, try again...")
+			continue
+		}
+		return nil
+	}
+	return err
+}
+
+func checksum(filePath string, expectedHash string) error {
+	file, err := os.Open(filePath)
+	if err != nil {
+		log.Errorf("failed to open file %s: %v", filePath, err)
+		return err
+	}
+	defer func() {
+		_ = file.Close()
+	}()
+
+	hasher := sha512.New()
+
+	_, err = io.Copy(hasher, file)
+	if err != nil {
+		log.Errorf("failed to copy file contents to hasher: %v", err)
+		return err
+	}
+
+	hash := base64.StdEncoding.EncodeToString(hasher.Sum(nil))
+
+	if hash != expectedHash {
+		log.Errorf("invalid sha512 %s", hash)
+		return fmt.Errorf("invalid sha512 %s", hash)
+	}
+
+	return nil
+}

server/service/auth/account.go

@@ -0,0 +1,113 @@
+package auth
+
+import (
+	"NanoKVM-Server/utils"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/crypto/bcrypt"
+)
+
+const AccountFile = "/etc/kvm/pwd"
+
+type Account struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+func GetAccount() (*Account, error) {
+	if _, err := os.Stat(AccountFile); err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			return getDefaultAccount(), nil
+		}
+		return nil, err
+	}
+
+	content, err := os.ReadFile(AccountFile)
+	if err != nil {
+		return nil, err
+	}
+
+	var account Account
+	if err = json.Unmarshal(content, &account); err != nil {
+		log.Errorf("unmarshal account failed: %s", err)
+		return nil, err
+	}
+
+	return &account, nil
+}
+
+func SetAccount(username string, password string) error {
+	account, err := json.Marshal(&Account{
+		Username: username,
+		Password: password,
+	})
+	if err != nil {
+		log.Errorf("failed to marshal account information to json: %s", err)
+		return err
+	}
+
+	err = os.MkdirAll(filepath.Dir(AccountFile), 0o644)
+	if err != nil {
+		log.Errorf("create directory %s failed: %s", AccountFile, err)
+		return err
+	}
+
+	err = os.WriteFile(AccountFile, account, 0o644)
+	if err != nil {
+		log.Errorf("write password failed: %s", err)
+		return err
+	}
+
+	return nil
+}
+
+func CompareAccount(username string, password string) bool {
+	account, err := GetAccount()
+	if err != nil {
+		return false
+	}
+
+	if username != account.Username {
+		return false
+	}
+
+	decryptedPassword, err := utils.DecodeDecrypt(password)
+	if err != nil || decryptedPassword == "" {
+		return false
+	}
+
+	err = bcrypt.CompareHashAndPassword([]byte(account.Password), []byte(decryptedPassword))
+	if err != nil {
+		// Compatible with old versions
+		accountDecryptedPassword, _ := utils.DecodeDecrypt(account.Password)
+		if accountDecryptedPassword == decryptedPassword {
+			return true
+		}
+
+		return false
+	}
+
+	return true
+}
+
+func DelAccount() error {
+	if err := os.Remove(AccountFile); err != nil {
+		log.Errorf("failed to delete password: %s", err)
+		return err
+	}
+
+	return nil
+}
+
+func getDefaultAccount() *Account {
+	password, _ := bcrypt.GenerateFromPassword([]byte("admin"), bcrypt.DefaultCost)
+
+	return &Account{
+		Username: "admin",
+		Password: string(password),
+	}
+}

server/service/auth/login.go

@@ -0,0 +1,72 @@
+package auth
+
+import (
+	"NanoKVM-Server/config"
+	"NanoKVM-Server/middleware"
+	"NanoKVM-Server/proto"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+)
+
+func (s *Service) Login(c *gin.Context) {
+	var req proto.LoginReq
+	var rsp proto.Response
+
+	// authentication disabled
+	conf := config.GetInstance()
+	if conf.Authentication == "disable" {
+		rsp.OkRspWithData(c, &proto.LoginRsp{
+			Token: "disabled",
+		})
+		return
+	}
+
+	if err := proto.ParseFormRequest(c, &req); err != nil {
+		rsp.ErrRsp(c, -1, "invalid parameters")
+		return
+	}
+
+	if ok := CompareAccount(req.Username, req.Password); !ok {
+		rsp.ErrRsp(c, -2, "invalid username or password")
+		return
+	}
+
+	token, err := middleware.GenerateJWT(req.Username)
+	if err != nil {
+		rsp.ErrRsp(c, -3, "generate token failed")
+		return
+	}
+
+	rsp.OkRspWithData(c, &proto.LoginRsp{
+		Token: token,
+	})
+
+	log.Debugf("login success, username: %s", req.Username)
+}
+
+func (s *Service) Logout(c *gin.Context) {
+	conf := config.GetInstance()
+
+	if conf.JWT.RevokeTokensOnLogout {
+		config.RegenerateSecretKey()
+	}
+
+	var rsp proto.Response
+	rsp.OkRsp(c)
+}
+
+func (s *Service) GetAccount(c *gin.Context) {
+	var rsp proto.Response
+
+	account, err := GetAccount()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "get account failed")
+		return
+	}
+
+	rsp.OkRspWithData(c, &proto.GetAccountRsp{
+		Username: account.Username,
+	})
+	log.Debugf("get account successful")
+}

server/service/auth/password.go

@@ -0,0 +1,121 @@
+package auth
+
+import (
+	"NanoKVM-Server/proto"
+	"NanoKVM-Server/utils"
+	"io"
+	"os"
+	"os/exec"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func (s *Service) ChangePassword(c *gin.Context) {
+	var req proto.ChangePasswordReq
+	var rsp proto.Response
+
+	if err := proto.ParseFormRequest(c, &req); err != nil {
+		rsp.ErrRsp(c, -1, "invalid parameters")
+		return
+	}
+
+	password, err := utils.DecodeDecrypt(req.Password)
+	if err != nil || password == "" {
+		rsp.ErrRsp(c, -2, "invalid password")
+		return
+	}
+
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		rsp.ErrRsp(c, -3, "failed to hash password")
+		return
+	}
+
+	if err = SetAccount(req.Username, string(hashedPassword)); err != nil {
+		rsp.ErrRsp(c, -4, "failed to save password")
+		return
+	}
+
+	// change root password
+	err = changeRootPassword(password)
+	if err != nil {
+		_ = DelAccount()
+		rsp.ErrRsp(c, -5, "failed to change password")
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("change password success, username: %s", req.Username)
+}
+
+func (s *Service) IsPasswordUpdated(c *gin.Context) {
+	var rsp proto.Response
+
+	if _, err := os.Stat(AccountFile); err != nil {
+		rsp.OkRspWithData(c, &proto.IsPasswordUpdatedRsp{
+			IsUpdated: false,
+		})
+		return
+	}
+
+	account, err := GetAccount()
+	if err != nil || account == nil {
+		rsp.ErrRsp(c, -1, "failed to get password")
+		return
+	}
+
+	err = bcrypt.CompareHashAndPassword([]byte(account.Password), []byte("admin"))
+
+	rsp.OkRspWithData(c, &proto.IsPasswordUpdatedRsp{
+		IsUpdated: err == nil,
+	})
+}
+
+func changeRootPassword(password string) error {
+	err := passwd(password)
+	if err != nil {
+		log.Errorf("failed to change root password: %s", err)
+		return err
+	}
+
+	log.Debugf("change root password successful.")
+	return nil
+}
+
+func passwd(password string) error {
+	cmd := exec.Command("passwd", "root")
+
+	stdin, err := cmd.StdinPipe()
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = stdin.Close()
+	}()
+
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err = cmd.Start(); err != nil {
+		return err
+	}
+
+	if _, err = io.WriteString(stdin, password+"\n"); err != nil {
+		return err
+	}
+
+	time.Sleep(100 * time.Millisecond)
+
+	if _, err = io.WriteString(stdin, password+"\n"); err != nil {
+		return err
+	}
+
+	if err = cmd.Wait(); err != nil {
+		return err
+	}
+
+	return nil
+}

server/service/auth/service.go

@@ -0,0 +1,7 @@
+package auth
+
+type Service struct{}
+
+func NewService() *Service {
+	return &Service{}
+}

server/service/download/service.go

@@ -0,0 +1,230 @@
+package download
+
+import (
+	"NanoKVM-Server/proto"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+type Service struct{}
+
+var sentinelPath = "/tmp/.download_in_progress"
+
+func NewService() *Service {
+	// Clear sentinel
+	// If we are starting from scratch, we need to remove the sentinel file as any downloads at this point are done or broken
+	_ = os.Remove(sentinelPath)
+	return &Service{}
+}
+
+func (s *Service) ImageEnabled(c *gin.Context) {
+	var rsp proto.Response
+
+	// Check if /data mount is RO/RW
+	testFile := "/data/.testfile"
+	file, err := os.Create(testFile)
+	defer file.Close()
+	defer os.Remove(testFile)
+	if err != nil {
+		if os.IsPermission(err) {
+			rsp.OkRspWithData(c, &proto.ImageEnabledRsp{
+				Enabled: false,
+			})
+			return
+		}
+		rsp.OkRspWithData(c, &proto.ImageEnabledRsp{
+			Enabled: false,
+		})
+		return
+	}
+
+	rsp.OkRspWithData(c, &proto.ImageEnabledRsp{
+		Enabled: true,
+	})
+}
+
+func (s *Service) StatusImage(c *gin.Context) {
+	var rsp proto.Response
+
+	// Check if the sentinel file exists
+	log.Debug("StatusImage")
+	if _, err := os.Stat(sentinelPath); err == nil {
+		content, err := os.ReadFile(sentinelPath)
+		if err != nil {
+			log.Error("Failed to read sentinel file")
+			rsp.OkRspWithData(c, &proto.StatusImageRsp{
+				Status:     "in_progress",
+				File:       "",
+				Percentage: "",
+			})
+			return
+		}
+		splitted := strings.Split(string(content), ";")
+		if len(splitted) == 1 {
+			// No percentage, just the URL
+			rsp.OkRspWithData(c, &proto.StatusImageRsp{
+				Status:     "in_progress",
+				File:       splitted[0],
+				Percentage: "",
+			})
+		} else {
+			// Percentage is available
+			rsp.OkRspWithData(c, &proto.StatusImageRsp{
+				Status:     "in_progress",
+				File:       splitted[0],
+				Percentage: splitted[1],
+			})
+		}
+
+		return
+	}
+	rsp.OkRspWithData(c, &proto.StatusImageRsp{
+		Status:     "idle",
+		File:       "",
+		Percentage: "",
+	})
+}
+
+func (s *Service) DownloadImage(c *gin.Context) {
+	var req proto.MountImageReq
+	var rsp proto.Response
+
+	log.Debug("DownloadImage")
+
+	if err := proto.ParseFormRequest(c, &req); err != nil {
+		rsp.ErrRsp(c, -1, "invalid arguments")
+		return
+	}
+
+	if req.File == "" {
+		rsp.ErrRsp(c, -1, "invalid arguments")
+		return
+	}
+	// Parse the URI to see if its valid http/s
+	u, err := url.Parse(req.File)
+	if err != nil || u.Scheme == "" || u.Host == "" {
+		rsp.ErrRsp(c, -1, "invalid url")
+		return
+	}
+
+	// Set a sentinel file to mark that there is a download in progress
+	// This is to prevent multiple downloads at the same time
+	if _, err := os.Stat(sentinelPath); err == nil {
+		log.Debug("Download in progress")
+		rsp.ErrRsp(c, -1, "download in progress")
+		return
+	}
+	// Create the sentinel file
+	err = os.WriteFile(sentinelPath, []byte(req.File), 0644)
+	if err != nil {
+		log.Error("Failed to create sentinel file")
+		rsp.ErrRsp(c, -1, "failed to create sentinel file")
+		return
+	}
+
+	// Check if it actually exists and fail if it doesn't
+	resp, err := http.Head(req.File)
+	if resp.StatusCode != http.StatusOK || err != nil {
+		rsp.ErrRsp(c, resp.StatusCode, "failed when checking the url")
+		log.Error("Failed to check the URL")
+		defer os.Remove(sentinelPath)
+		return
+	}
+	defer resp.Body.Close()
+
+	// Download the image in a goroutine to not block the request
+	go func() {
+		defer os.Remove(sentinelPath)
+		resp, err = http.Get(req.File)
+		if err != nil {
+			log.Error("Failed to download the file")
+			rsp.ErrRsp(c, -1, "failed to download the file")
+			return
+		}
+		defer resp.Body.Close()
+		// Create the destination file
+		destPath := filepath.Join("/data", filepath.Base(u.Path))
+		out, err := os.Create(destPath)
+		if err != nil {
+			log.Error("Failed to create destination file")
+			rsp.ErrRsp(c, -1, "failed to create destination file")
+			return
+		}
+		defer out.Close()
+
+		lw := &loggingWriter{writer: out, totalSize: resp.ContentLength}
+		lw.startTicker()
+		_, err = io.Copy(lw, resp.Body)
+		if err != nil {
+			log.Error("Failed to save the file")
+			rsp.ErrRsp(c, -1, "failed to save the file")
+			lw.stopTicker()
+			return
+		}
+		lw.stopTicker()
+	}()
+	rsp.OkRspWithData(c, &proto.StatusImageRsp{
+		Status:     "in_progress",
+		File:       req.File,
+		Percentage: "",
+	})
+}
+
+type loggingWriter struct {
+	writer    io.Writer
+	total     int64
+	totalSize int64
+	ticker    *time.Ticker
+	done      chan bool
+}
+
+func (lw *loggingWriter) startTicker() {
+	lw.ticker = time.NewTicker(2500 * time.Millisecond)
+	lw.done = make(chan bool)
+	go func() {
+		for {
+			select {
+			case <-lw.done:
+				return
+			case <-lw.ticker.C:
+				lw.updateSentinel()
+			}
+		}
+	}()
+}
+
+func (lw *loggingWriter) stopTicker() {
+	lw.ticker.Stop()
+	lw.done <- true
+}
+
+func (lw *loggingWriter) updateSentinel() {
+	percentage := float64(lw.total) / float64(lw.totalSize) * 100
+	content, err := os.ReadFile(sentinelPath)
+	if err != nil {
+		log.Error("Failed to read sentinel file")
+		return
+	}
+	splitted := strings.Split(string(content), ";")
+	if len(splitted) == 0 {
+		return
+	}
+	err = os.WriteFile(sentinelPath, []byte(fmt.Sprintf("%s;%.2f%%", splitted[0], percentage)), 0644)
+	if err != nil {
+		log.Error("Failed to update sentinel file")
+	}
+}
+
+func (lw *loggingWriter) Write(p []byte) (int, error) {
+	n, err := lw.writer.Write(p)
+	lw.total += int64(n)
+	return n, err
+}

server/service/extensions/tailscale/cli.go

@@ -0,0 +1,149 @@
+package tailscale
+
+import (
+	"NanoKVM-Server/utils"
+	"bufio"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"regexp"
+	"strings"
+)
+
+const (
+	ScriptPath       = "/etc/init.d/S98tailscaled"
+	ScriptBackupPath = "/kvmapp/system/init.d/S98tailscaled"
+)
+
+type Cli struct{}
+
+type TsStatus struct {
+	BackendState string `json:"BackendState"`
+
+	Self struct {
+		HostName     string   `json:"HostName"`
+		TailscaleIPs []string `json:"TailscaleIPs"`
+	} `json:"Self"`
+
+	CurrentTailnet struct {
+		Name string `json:"Name"`
+	} `json:"CurrentTailnet"`
+}
+
+func NewCli() *Cli {
+	return &Cli{}
+}
+
+func (c *Cli) Start() error {
+	for _, filePath := range []string{TailscalePath, TailscaledPath} {
+		if err := utils.EnsurePermission(filePath, 0o100); err != nil {
+			return err
+		}
+	}
+
+	commands := []string{
+		fmt.Sprintf("cp -f %s %s", ScriptBackupPath, ScriptPath),
+		fmt.Sprintf("%s start", ScriptPath),
+	}
+
+	command := strings.Join(commands, " && ")
+	return exec.Command("sh", "-c", command).Run()
+}
+
+func (c *Cli) Restart() error {
+	commands := []string{
+		fmt.Sprintf("cp -f %s %s", ScriptBackupPath, ScriptPath),
+		fmt.Sprintf("%s restart", ScriptPath),
+	}
+
+	command := strings.Join(commands, " && ")
+	return exec.Command("sh", "-c", command).Run()
+}
+
+func (c *Cli) Stop() error {
+	command := fmt.Sprintf("%s stop", ScriptPath)
+	err := exec.Command("sh", "-c", command).Run()
+	if err != nil {
+		return err
+	}
+
+	_ = os.Remove(ConfigPath)
+
+	return os.Remove(ScriptPath)
+}
+
+func (c *Cli) Up() error {
+	command := "tailscale up --accept-dns=false"
+	return exec.Command("sh", "-c", command).Run()
+}
+
+func (c *Cli) Down() error {
+	command := "tailscale down"
+	return exec.Command("sh", "-c", command).Run()
+}
+
+func (c *Cli) Status() (*TsStatus, error) {
+	command := "tailscale status --json"
+	cmd := exec.Command("sh", "-c", command)
+
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return nil, err
+	}
+
+	// output is not in standard json format
+	if outputStr := string(output); !strings.HasPrefix(outputStr, "{") {
+		index := strings.Index(outputStr, "{")
+		if index == -1 {
+			return nil, errors.New("unknown output")
+		}
+
+		output = []byte(outputStr[index:])
+	}
+
+	var status TsStatus
+	err = json.Unmarshal(output, &status)
+	if err != nil {
+		return nil, err
+	}
+
+	return &status, nil
+}
+
+func (c *Cli) Login() (string, error) {
+	command := "tailscale login --accept-dns=false --timeout=10m"
+	cmd := exec.Command("sh", "-c", command)
+
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		return "", err
+	}
+	defer func() {
+		_ = stderr.Close()
+	}()
+
+	go func() {
+		_ = cmd.Run()
+	}()
+
+	reader := bufio.NewReader(stderr)
+	for {
+		line, err := reader.ReadString('\n')
+		if err != nil {
+			return "", err
+		}
+
+		if strings.Contains(line, "https") {
+			reg := regexp.MustCompile(`\s+`)
+			url := reg.ReplaceAllString(line, "")
+			return url, nil
+		}
+	}
+}
+
+func (c *Cli) Logout() error {
+	command := "tailscale logout"
+	return exec.Command("sh", "-c", command).Run()
+}

server/service/extensions/tailscale/install.go

@@ -0,0 +1,118 @@
+package tailscale
+
+import (
+	"NanoKVM-Server/utils"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	OriginalURL = "https://pkgs.tailscale.com/stable/tailscale_latest_riscv64.tgz"
+	Workspace   = "/root/.tailscale"
+)
+
+func isInstalled() bool {
+	_, err1 := os.Stat(TailscalePath)
+	_, err2 := os.Stat(TailscaledPath)
+
+	return err1 == nil && err2 == nil
+}
+
+func install() error {
+	_ = os.MkdirAll(Workspace, 0o755)
+	defer func() {
+		_ = os.RemoveAll(Workspace)
+	}()
+
+	tarFile := fmt.Sprintf("%s/tailscale_riscv64.tgz", Workspace)
+
+	// download
+	if err := download(tarFile); err != nil {
+		log.Errorf("failed to download tailscale: %s", err)
+		return err
+	}
+
+	// decompress
+	dir, err := utils.UnTarGz(tarFile, Workspace)
+	if err != nil {
+		log.Errorf("failed to decompress tailscale: %s", err)
+		return err
+	}
+
+	// move
+	tailscalePath := fmt.Sprintf("%s/tailscale", dir)
+	err = utils.MoveFile(tailscalePath, TailscalePath)
+	if err != nil {
+		log.Errorf("failed to move tailscale: %s", err)
+		return err
+	}
+
+	tailscaledPath := fmt.Sprintf("%s/tailscaled", dir)
+	err = utils.MoveFile(tailscaledPath, TailscaledPath)
+	if err != nil {
+		log.Errorf("failed to move tailscaled: %s", err)
+		return err
+	}
+
+	log.Debugf("install tailscale successfully")
+	return nil
+}
+
+func download(target string) error {
+	url, err := getDownloadURL()
+	if err != nil {
+		log.Errorf("failed to get Tailscale download url: %s", err)
+		return err
+	}
+
+	resp, err := http.Get(url)
+	if err != nil {
+		log.Errorf("failed to download Tailscale: %s", err)
+		return err
+	}
+	defer func() {
+		_ = resp.Body.Close()
+	}()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	out, err := os.Create(target)
+	if err != nil {
+		log.Errorf("failed to create file: %s", err)
+		return err
+	}
+	defer func() {
+		_ = out.Close()
+	}()
+
+	_, err = io.Copy(out, resp.Body)
+	if err != nil {
+		log.Errorf("failed to copy response body to file: %s", err)
+		return err
+	}
+
+	log.Debugf("download Tailscale successfully")
+	return nil
+}
+
+func getDownloadURL() (string, error) {
+	resp, err := (&http.Client{}).Get(OriginalURL)
+	if err != nil {
+		return "", err
+	}
+	defer func() {
+		_ = resp.Body.Close()
+	}()
+
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusFound {
+		return "", fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	return resp.Request.URL.String(), nil
+}

server/service/extensions/tailscale/service.go

@@ -0,0 +1,235 @@
+package tailscale
+
+import (
+	"NanoKVM-Server/proto"
+	"NanoKVM-Server/utils"
+	"net"
+	"os"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+)
+
+type Service struct{}
+
+const (
+	TailscalePath  = "/usr/bin/tailscale"
+	TailscaledPath = "/usr/sbin/tailscaled"
+	ConfigPath     = "etc/sysctl.d/99-tailscale.conf"
+)
+
+var StateMap = map[string]proto.TailscaleState{
+	"NoState":    proto.TailscaleNotRunning,
+	"Starting":   proto.TailscaleNotRunning,
+	"NeedsLogin": proto.TailscaleNotLogin,
+	"Running":    proto.TailscaleRunning,
+	"Stopped":    proto.TailscaleStopped,
+}
+
+func NewService() *Service {
+	return &Service{}
+}
+
+func (s *Service) Install(c *gin.Context) {
+	var rsp proto.Response
+
+	if !isInstalled() {
+		if err := install(); err != nil {
+			rsp.ErrRsp(c, -1, "install failed")
+			return
+		}
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("install tailscale successfully")
+}
+
+func (s *Service) Uninstall(c *gin.Context) {
+	var rsp proto.Response
+
+	_ = NewCli().Stop()
+	_ = utils.DelGoMemLimit()
+
+	_ = os.Remove(TailscalePath)
+	_ = os.Remove(TailscaledPath)
+	_ = os.Remove(ConfigPath)
+
+	rsp.OkRsp(c)
+	log.Debugf("uninstall tailscale successfully")
+}
+
+func (s *Service) Start(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Start()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "start failed")
+		log.Errorf("failed to run tailscale start: %s", err)
+		return
+	}
+
+	if !utils.IsGoMemLimitExist() {
+		_ = utils.SetGoMemLimit(50)
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("tailscale start successfully")
+}
+
+func (s *Service) Restart(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Restart()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "restart failed")
+		log.Errorf("failed to run tailscale restart: %s", err)
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("tailscale restart successfully")
+}
+
+func (s *Service) Stop(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Stop()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "stop failed")
+		log.Errorf("failed to run tailscale stop: %s", err)
+		return
+	}
+
+	_ = utils.DelGoMemLimit()
+
+	rsp.OkRsp(c)
+	log.Debugf("tailscale stop successfully")
+}
+
+func (s *Service) Up(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Up()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "tailscale up failed")
+		log.Errorf("failed to run tailscale up: %s", err)
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("run tailscale up successfully")
+}
+
+func (s *Service) Down(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Down()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "tailscale down failed")
+		log.Errorf("failed to run tailscale down: %s", err)
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("run tailscale down successfully")
+}
+
+func (s *Service) Login(c *gin.Context) {
+	var rsp proto.Response
+
+	// check tailscale status
+	cli := NewCli()
+	status, err := cli.Status()
+	if err != nil {
+		_ = cli.Start()
+		status, err = cli.Status()
+	}
+
+	if err != nil {
+		log.Errorf("failed to get tailscale status: %s", err)
+		rsp.ErrRsp(c, -1, "unknown status")
+		return
+	}
+
+	if status.BackendState == "Running" {
+		rsp.OkRspWithData(c, &proto.LoginTailscaleRsp{})
+		return
+	}
+
+	// get login url
+	url, err := cli.Login()
+	if err != nil {
+		log.Errorf("failed to run tailscale login: %s", err)
+		rsp.ErrRsp(c, -2, "login failed")
+		return
+	}
+
+	if !utils.IsGoMemLimitExist() {
+		_ = utils.SetGoMemLimit(50)
+	}
+
+	rsp.OkRspWithData(c, &proto.LoginTailscaleRsp{
+		Url: url,
+	})
+
+	log.Debugf("tailscale login url: %s", url)
+}
+
+func (s *Service) Logout(c *gin.Context) {
+	var rsp proto.Response
+
+	err := NewCli().Logout()
+	if err != nil {
+		rsp.ErrRsp(c, -1, "logout failed")
+		log.Errorf("failed to run tailscale logout: %s", err)
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("tailscale logout successfully")
+}
+
+func (s *Service) GetStatus(c *gin.Context) {
+	var rsp proto.Response
+
+	if !isInstalled() {
+		rsp.OkRspWithData(c, &proto.GetTailscaleStatusRsp{
+			State: proto.TailscaleNotInstall,
+		})
+		return
+	}
+
+	status, err := NewCli().Status()
+	if err != nil {
+		log.Debugf("failed to get tailscale status: %s", err)
+		rsp.OkRspWithData(c, &proto.GetTailscaleStatusRsp{
+			State: proto.TailscaleNotRunning,
+		})
+		return
+	}
+
+	state, ok := StateMap[status.BackendState]
+	if !ok {
+		log.Errorf("unknown tailscale state: %s", status.BackendState)
+		rsp.ErrRsp(c, -1, "unknown state")
+		return
+	}
+
+	ipv4 := ""
+	for _, tailscaleIp := range status.Self.TailscaleIPs {
+		ip := net.ParseIP(tailscaleIp)
+		if ip != nil && ip.To4() != nil {
+			ipv4 = ip.String()
+		}
+	}
+
+	data := proto.GetTailscaleStatusRsp{
+		State:   state,
+		IP:      ipv4,
+		Name:    status.Self.HostName,
+		Account: status.CurrentTailnet.Name,
+	}
+
+	rsp.OkRspWithData(c, &data)
+	log.Debugf("get tailscale status successfully")
+}

server/service/hid/hid.go

@@ -0,0 +1,36 @@
+package hid
+
+import (
+	"os"
+	"sync"
+)
+
+var (
+	hid     *Hid
+	hidOnce sync.Once
+)
+
+type Hid struct {
+	g0         *os.File
+	g1         *os.File
+	g2         *os.File
+	kbMutex    sync.Mutex
+	mouseMutex sync.Mutex
+}
+
+func (h *Hid) Lock() {
+	h.kbMutex.Lock()
+	h.mouseMutex.Lock()
+}
+
+func (h *Hid) Unlock() {
+	h.kbMutex.Unlock()
+	h.mouseMutex.Unlock()
+}
+
+func GetHid() *Hid {
+	hidOnce.Do(func() {
+		hid = &Hid{}
+	})
+	return hid
+}

server/service/hid/keyboard.go

@@ -0,0 +1,21 @@
+package hid
+
+func (h *Hid) Keyboard(queue <-chan []int) {
+	for event := range queue {
+		h.kbMutex.Lock()
+		h.writeKeyboard(event)
+		h.kbMutex.Unlock()
+	}
+}
+
+func (h *Hid) writeKeyboard(event []int) {
+	code := byte(event[0])
+
+	var modifier byte = 0x00
+	if code > 0 {
+		modifier = byte(event[1]) | byte(event[2]) | byte(event[3]) | byte(event[4])
+	}
+
+	data := []byte{modifier, 0x00, code, 0x00, 0x00, 0x00, 0x00, 0x00}
+	h.Write(h.g0, data)
+}

server/service/hid/mouse.go

@@ -0,0 +1,111 @@
+package hid
+
+import (
+	"encoding/binary"
+	"errors"
+	"os"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	MouseUp = iota
+	MouseDown
+	MouseMoveAbsolute
+	MouseMoveRelative
+	MouseScroll
+)
+
+var mouseButtonMap = map[byte]bool{
+	0x01: true,
+	0x02: true,
+	0x04: true,
+}
+
+func (h *Hid) Mouse(queue <-chan []int) {
+	for event := range queue {
+		h.mouseMutex.Lock()
+
+		switch event[0] {
+		case MouseDown:
+			h.mouseDown(event)
+		case MouseUp:
+			h.mouseUp()
+		case MouseMoveAbsolute:
+			h.mouseMoveAbsolute(event)
+		case MouseMoveRelative:
+			h.mouseMoveRelative(event)
+		case MouseScroll:
+			h.mouseScroll(event)
+		default:
+			log.Debugf("invalid mouse event: %+v", event)
+		}
+
+		h.mouseMutex.Unlock()
+	}
+}
+
+func (h *Hid) mouseDown(event []int) {
+	button := byte(event[1])
+
+	if _, ok := mouseButtonMap[button]; !ok {
+		log.Debugf("invalid mouse button: %+v", event)
+		return
+	}
+
+	data := []byte{button, 0, 0, 0}
+	h.writeWithTimeout(h.g1, data)
+}
+
+func (h *Hid) mouseUp() {
+	data := []byte{0, 0, 0, 0}
+	h.writeWithTimeout(h.g1, data)
+}
+
+func (h *Hid) mouseScroll(event []int) {
+	direction := 0x01
+	if event[3] > 0 {
+		direction = -0x1
+	}
+
+	data := []byte{0, 0, 0, byte(direction)}
+	h.writeWithTimeout(h.g1, data)
+}
+
+func (h *Hid) mouseMoveAbsolute(event []int) {
+	x := make([]byte, 2)
+	y := make([]byte, 2)
+	binary.LittleEndian.PutUint16(x, uint16(event[2]))
+	binary.LittleEndian.PutUint16(y, uint16(event[3]))
+
+	data := []byte{0, x[0], x[1], y[0], y[1], 0}
+	h.writeWithTimeout(h.g2, data)
+}
+
+func (h *Hid) mouseMoveRelative(event []int) {
+	data := []byte{byte(event[1]), byte(event[2]), byte(event[3]), 0}
+	h.writeWithTimeout(h.g1, data)
+}
+
+func (h *Hid) writeWithTimeout(file *os.File, data []byte) {
+	deadline := time.Now().Add(8 * time.Millisecond)
+	_ = file.SetWriteDeadline(deadline)
+
+	_, err := file.Write(data)
+	if err != nil {
+		switch {
+		case errors.Is(err, os.ErrClosed):
+			log.Debugf("hid already closed, reopen it...")
+			h.OpenNoLock()
+		case errors.Is(err, os.ErrDeadlineExceeded):
+			log.Debugf("write to hid timeout")
+		default:
+			log.Errorf("write to hid failed: %s", err)
+		}
+
+		return
+	}
+
+	log.Debugf("write to hid: %+v", data)
+}

server/service/hid/operation.go

@@ -0,0 +1,73 @@
+package hid
+
+import (
+	"errors"
+	"os"
+
+	log "github.com/sirupsen/logrus"
+)
+
+func (h *Hid) OpenNoLock() {
+	var err error
+	h.CloseNoLock()
+
+	h.g0, err = os.OpenFile("/dev/hidg0", os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open /dev/hidg0 failed: %s", err)
+	}
+
+	h.g1, err = os.OpenFile("/dev/hidg1", os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open /dev/hidg1 failed: %s", err)
+	}
+
+	h.g2, err = os.OpenFile("/dev/hidg2", os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open /dev/hidg2 failed: %s", err)
+	}
+}
+
+func (h *Hid) Open() {
+	h.kbMutex.Lock()
+	defer h.kbMutex.Unlock()
+	h.mouseMutex.Lock()
+	defer h.mouseMutex.Unlock()
+
+	h.CloseNoLock()
+
+	h.OpenNoLock()
+}
+
+func (h *Hid) CloseNoLock() {
+	for _, file := range []*os.File{h.g0, h.g1, h.g2} {
+		if file != nil {
+			_ = file.Sync()
+			_ = file.Close()
+		}
+	}
+}
+
+func (h *Hid) Close() {
+	h.kbMutex.Lock()
+	defer h.kbMutex.Unlock()
+	h.mouseMutex.Lock()
+	defer h.mouseMutex.Unlock()
+
+	h.CloseNoLock()
+}
+
+func (h *Hid) Write(file *os.File, data []byte) {
+	_, err := file.Write(data)
+	if err != nil {
+		if errors.Is(err, os.ErrClosed) {
+			log.Debugf("hid already closed, reopen it...")
+			h.OpenNoLock()
+		} else {
+			log.Errorf("write to hid failed: %s", err)
+		}
+
+		return
+	}
+
+	log.Debugf("write to hid: %+v", data)
+}

server/service/hid/paste.go

@@ -0,0 +1,172 @@
+package hid
+
+import (
+	"time"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+
+	"NanoKVM-Server/proto"
+)
+
+type Char struct {
+	Modifiers int
+	Code      int
+}
+
+type PasteReq struct {
+	Content string `form:"content" validate:"required"`
+}
+
+func (s *Service) Paste(c *gin.Context) {
+	var req PasteReq
+	var rsp proto.Response
+
+	if err := proto.ParseFormRequest(c, &req); err != nil {
+		rsp.ErrRsp(c, -1, "invalid arguments")
+		return
+	}
+
+	if len(req.Content) > 1024 {
+		rsp.ErrRsp(c, -2, "")
+		return
+	}
+
+	s.hid.kbMutex.Lock()
+	for _, char := range req.Content {
+		key, ok := charMap[char]
+		if !ok {
+			log.Debugf("unknown key %c", char)
+			continue
+		}
+
+		keyDown := []byte{byte(key.Modifiers), 0x00, byte(key.Code), 0x00, 0x00, 0x00, 0x00, 0x00}
+		keyUp := []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
+
+		// only handle shift. Need to handle all modifiers?
+		if key.Modifiers > 0 {
+			keyShift := []byte{0x00, 0x00, byte(225), 0x00, 0x00, 0x00, 0x00, 0x00}
+			s.hid.Write(s.hid.g0, keyShift)
+		}
+
+		s.hid.Write(s.hid.g0, keyDown)
+		s.hid.Write(s.hid.g0, keyUp)
+
+		if key.Modifiers > 0 {
+			s.hid.Write(s.hid.g0, keyUp)
+		}
+
+		time.Sleep(50 * time.Millisecond)
+	}
+	s.hid.kbMutex.Unlock()
+
+	rsp.OkRsp(c)
+	log.Debugf("hid paste success, total %d", len(req.Content))
+}
+
+var charMap = map[rune]Char{
+	97:  {0, 4},  // a
+	98:  {0, 5},  // b
+	99:  {0, 6},  // c
+	100: {0, 7},  // d
+	101: {0, 8},  // e
+	102: {0, 9},  // f
+	103: {0, 10}, // g
+	104: {0, 11}, // h
+	105: {0, 12}, // i
+	106: {0, 13}, // j
+	107: {0, 14}, // k
+	108: {0, 15}, // l
+	109: {0, 16}, // m
+	110: {0, 17}, // n
+	111: {0, 18}, // o
+	112: {0, 19}, // p
+	113: {0, 20}, // q
+	114: {0, 21}, // r
+	115: {0, 22}, // s
+	116: {0, 23}, // t
+	117: {0, 24}, // u
+	118: {0, 25}, // v
+	119: {0, 26}, // w
+	120: {0, 27}, // x
+	121: {0, 28}, // y
+	122: {0, 29}, // z
+
+	49: {0, 30}, // 1
+	50: {0, 31}, // 2
+	51: {0, 32}, // 3
+	52: {0, 33}, // 4
+	53: {0, 34}, // 5
+	54: {0, 35}, // 6
+	55: {0, 36}, // 7
+	56: {0, 37}, // 8
+	57: {0, 38}, // 9
+	48: {0, 39}, // 0
+
+	10: {0, 40}, // Enter
+	9:  {0, 43}, // Tab
+	32: {0, 44}, // Space
+	45: {0, 45}, // -
+	61: {0, 46}, // =
+	91: {0, 47}, // [
+	93: {0, 48}, // ]
+	92: {0, 49}, // \
+
+	59: {0, 51}, // ;
+	39: {0, 52}, // '
+	96: {0, 53}, // `
+	44: {0, 54}, // ,
+	46: {0, 55}, // .
+	47: {0, 56}, // /
+
+	65: {2, 4},  // A
+	66: {2, 5},  // B
+	67: {2, 6},  // C
+	68: {2, 7},  // D
+	69: {2, 8},  // E
+	70: {2, 9},  // F
+	71: {2, 10}, // G
+	72: {2, 11}, // H
+	73: {2, 12}, // I
+	74: {2, 13}, // J
+	75: {2, 14}, // K
+	76: {2, 15}, // L
+	77: {2, 16}, // M
+	78: {2, 17}, // N
+	79: {2, 18}, // O
+	80: {2, 19}, // P
+	81: {2, 20}, // Q
+	82: {2, 21}, // R
+	83: {2, 22}, // S
+	84: {2, 23}, // T
+	85: {2, 24}, // U
+	86: {2, 25}, // V
+	87: {2, 26}, // W
+	88: {2, 27}, // X
+	89: {2, 28}, // Y
+	90: {2, 29}, // Z
+
+	33: {2, 30}, // !
+	64: {2, 31}, // @
+	35: {2, 32}, // #
+	36: {2, 33}, // $
+	37: {2, 34}, // %
+	94: {2, 35}, // ^
+	38: {2, 36}, // &
+	42: {2, 37}, // *
+	40: {2, 38}, // (
+	41: {2, 39}, // )
+
+	95:  {2, 45}, // _
+	43:  {2, 46}, // +
+	123: {2, 47}, // {
+	125: {2, 48}, // }
+	124: {2, 49}, // |
+
+	58:  {2, 51}, // :
+	34:  {2, 52}, // "
+	126: {2, 53}, // ~
+	60:  {2, 54}, // <
+	62:  {2, 55}, // >
+	63:  {2, 56}, // ?
+}

server/service/hid/reset.go

@@ -0,0 +1,74 @@
+package hid
+
+import (
+	"NanoKVM-Server/proto"
+	"os"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+)
+
+func (s *Service) Reset(c *gin.Context) {
+	var rsp proto.Response
+
+	// reset USB
+	f, err := os.OpenFile("/sys/kernel/config/usb_gadget/g0/UDC", os.O_WRONLY, 0644)
+	if err != nil {
+		log.Errorf("open /sys/kernel/config/usb_gadget/g0/UDC failed: %s", err)
+		rsp.ErrRsp(c, -1, "open usb gadget file failed")
+		return
+	}
+	err = f.Truncate(0)
+	if err != nil {
+		_ = f.Close()
+		log.Errorf("truncate /sys/kernel/config/usb_gadget/g0/UDC failed: %s", err)
+		rsp.ErrRsp(c, -1, "truncate usb gadget file failed")
+		return
+	}
+	_, err = f.Seek(0, 0)
+	if err != nil {
+		_ = f.Close()
+		log.Errorf("seek to 0 failed: %s", err)
+		rsp.ErrRsp(c, -1, "seek to 0 in usb gadget file failed")
+		return
+	}
+	_, err = f.WriteString("\n")
+	if err != nil {
+		_ = f.Close()
+		log.Errorf("write to /sys/kernel/config/usb_gadget/g0/UDC failed: %s", err)
+		rsp.ErrRsp(c, -1, "write to usb gadget file failed")
+		return
+	}
+	_ = f.Close()
+
+	time.Sleep(1 * time.Second)
+
+	devices, err := os.ReadDir("/sys/class/udc/")
+	if err != nil {
+		log.Errorf("read udc directory failed: %s", err)
+		rsp.ErrRsp(c, -1, "read udc directory failed")
+		return
+	}
+
+	f, err = os.OpenFile("/sys/kernel/config/usb_gadget/g0/UDC", os.O_WRONLY, 0644)
+	if err != nil {
+		log.Errorf("open /sys/kernel/config/usb_gadget/g0/UDC failed: %s", err)
+		rsp.ErrRsp(c, -1, "open usb gadget file failed")
+		return
+	}
+	for _, device := range devices {
+		_, err = f.WriteString(device.Name() + "\n")
+		if err != nil {
+			_ = f.Close()
+			log.Errorf("write to /sys/kernel/config/usb_gadget/g0/UDC failed: %s", err)
+			rsp.ErrRsp(c, -1, "write to usb gadget file failed")
+			return
+		}
+	}
+
+	_ = f.Close()
+
+	rsp.OkRsp(c)
+	log.Debugf("reset hid success")
+}

server/service/hid/service.go

@@ -0,0 +1,11 @@
+package hid
+
+type Service struct {
+	hid *Hid
+}
+
+func NewService() *Service {
+	return &Service{
+		hid: GetHid(),
+	}
+}

server/service/network/service.go

@@ -0,0 +1,7 @@
+package network
+
+type Service struct{}
+
+func NewService() *Service {
+	return &Service{}
+}

server/service/network/wifi.go

@@ -0,0 +1,75 @@
+package network
+
+import (
+	"NanoKVM-Server/proto"
+	"os"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	WiFiExistFile = "/etc/kvm/wifi_exist"
+	WiFiSSID      = "/etc/kvm/wifi.ssid"
+	WiFiPasswd    = "/etc/kvm/wifi.pass"
+	WiFiConnect   = "/kvmapp/kvm/wifi_try_connect"
+	WiFiStateFile = "/kvmapp/kvm/wifi_state"
+)
+
+func (s *Service) GetWifi(c *gin.Context) {
+	var rsp proto.Response
+
+	data := &proto.GetWifiRsp{}
+
+	_, err := os.Stat(WiFiExistFile)
+	if err != nil {
+		rsp.OkRspWithData(c, data)
+		return
+	}
+
+	data.Supported = true
+
+	content, err := os.ReadFile(WiFiStateFile)
+	if err != nil {
+		rsp.OkRspWithData(c, data)
+		return
+	}
+
+	state := strings.ReplaceAll(string(content), "\n", "")
+	data.Connected = state == "1"
+
+	rsp.OkRspWithData(c, data)
+	log.Debugf("get wifi state: %s", state)
+}
+
+func (s *Service) ConnectWifi(c *gin.Context) {
+	var req proto.ConnectWifiReq
+	var rsp proto.Response
+
+	if err := proto.ParseFormRequest(c, &req); err != nil {
+		rsp.ErrRsp(c, -1, "invalid parameters")
+		return
+	}
+
+	if err := os.WriteFile(WiFiSSID, []byte(req.Ssid), 0o644); err != nil {
+		log.Errorf("failed to save wifi ssid: %s", err)
+		rsp.ErrRsp(c, -2, "failed to save wifi")
+		return
+	}
+
+	if err := os.WriteFile(WiFiPasswd, []byte(req.Password), 0o644); err != nil {
+		log.Errorf("failed to save wifi password: %s", err)
+		rsp.ErrRsp(c, -3, "failed to save wifi")
+		return
+	}
+
+	if err := os.WriteFile(WiFiConnect, nil, 0o644); err != nil {
+		log.Errorf("failed to connect wifi: %s", err)
+		rsp.ErrRsp(c, -4, "failed to connect wifi")
+		return
+	}
+
+	rsp.OkRsp(c)
+	log.Debugf("set wifi successfully: %s", req.Ssid)
+}