Downloading protected files fails with HTTP 500 instead of requesting sudo
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评估
- 难度
- 3/5
- 预计耗时
- 1-2 天
- 新手友好度
- 60/100
- Issue 类型
- 功能
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 技术栈
- typescript
- 领域
- backend
调研方向
The download endpoint in this plugin's TypeScript backend returns HTTP 500 when SFTP reports Permission denied on read. Find the download handler in the plugin source and compare it with the sudo elevation flow already used by file preview/editing, since the issue asks for the same fallback there. Start by reproducing: read a root-only file via SFTP as a normal user, then wire the sudo authentication flow into the download path and map Permission denied to a meaningful error. Done when sudo-protected downloads work (or a clear permission error is shown) instead of a 500 or a 0-byte file.
由索引模型根据 Issue 内容生成。
描述
What happened?
When downloading a file that requires elevated permissions through Termix File Manager, the download fails with:
Failed to download file: Request failed with status code 500
In some attempts, an empty file (0 bytes) is created instead when SCP Legacy Mode is enabled.
The same protected file can be opened and viewed through the File Manager, but downloading it fails anyways.
OpenSSH logs confirm that the SFTP server rejects the read operation due to insufficient permissions.
Steps to reproduce
- Connect to a Debian 13 server using a regular SSH user with sudo privileges.
- Open Termix File Manager.
- Navigate to a file that is readable by root but not by the SSH user.
- Open the file using the File Manager's existing sudo functionality.
- Attempt to download the same file.
- Observe HTTP 500 or an empty downloaded file.
What did you expect?
When SFTP returns Permission denied, Termix should offer the existing sudo authentication flow and retry the download with elevated permissions.
If sudo elevation is unavailable, Termix should display a meaningful permission error rather than a generic HTTP 500.
Termix version
26.10.5
Plugin version
1.1.1
Environment
Server OS: Debian GNU/Linux 13 (Trixie)
SSH server: OpenSSH with DevSec SSH Hardening
SFTP subsystem: internal-sftp -l INFO -f LOCAL6 -u 0027
MaxSessions: 10
ForceCommand: none
ChrootDirectory: none
LogLevel: VERBOSE
SCP Legacy Mode: Disabled
SSH user: Regular user with sudo privileges
Logs
Anything else?
The issue does not appear to be caused by the SSH hardening configuration. SFTP sessions establish successfully, and the server explicitly reports Permission denied when the protected file is opened for reading.
It would be useful to support sudo-aware downloads consistently with the existing file preview and editing functionality.
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- I searched open and closed issues and this is not a duplicate
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- 主要语言
- TypeScript
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