libgit2 / libgit2/libgit2sharp

Git clone causes an "SSL error: syscall failure:" with a specific repo

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C#
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描述

We are going to have to dump this library for this issue and move to using the cli instead. I figured I'd report this issue so maybe in the future someone can get around to fixing it. The issues has been reported before and have been open for over 4 years.

With a specific private repo, this error happens only on Alpine Linux in a container running as an ACA Job in Azure.
Authentication is being used (Personal Access Token) with the user of "default"

"[Message] SSL error: syscall failure: "

No other logging or error message.

Reproduction steps

This is extremely difficult to reproduce. I don't even know what it is about this specific repo that is causing the problem as other, repos owned by the same company using the same token, clone fine.

If I run locally in docker desktop, it does not crash. Everything else being equal.

I see others have reported the same issue and the bug has been open for years.

https://github.com/libgit2/libgit2sharp/issues/1262

Running the same user/token and URL from the cli git client works without issues.

git clone https:{user}:{token}@github.com/path/to/repo

I'm doing some digging to see if I can get more info about why it's happening.

I was able to get a detailed stacktrace from the service.

        [Exception]: [07/31/2024 23:56:31]: (/_/LibGit2Sharp/Core/Ensure.cs):(154)
        [Exception]: [07/31/2024 23:56:31]: (/_/LibGit2Sharp/Core/Ensure.cs):(172)
        [Exception]: [07/31/2024 23:56:31]: (/_/LibGit2Sharp/Core/Proxy.cs):(278)
        [Exception]: [07/31/2024 23:56:31]: (/_/LibGit2Sharp/Repository.cs):(824)

at LibGit2Sharp.Core.Proxy.git_clone(String url, String workdir, GitCloneOptions& opts) in //LibGit2Sharp/Core/Proxy.cs:line 278
at LibGit2Sharp.Repository.Clone(String sourceUrl, String workdirPath, CloneOptions options) in /
/LibGit2Sharp/Repository.cs:line 824

Here is some feedback. The logging isn't very good in this function that's checking the response code from the code repository. If we could see the code that is being returned (and it doesn't seem to the HTTP OK) then we would have a better understanding about what the issue is.

This morning (8/1/2024) I implemented a cli version of git and it had no issues cloning from the ACA Job on the specific repo.

Expected behavior

The repo clones

Actual behavior

The library crashes

Version of LibGit2Sharp (release number or SHA1)

0.30

Operating system(s) tested; .NET runtime tested

Alpine Linux .NET 8.0

貢獻指南

開啟貢獻指南

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

研究方向

從 Core/Proxy.cs:278 和 Repository.cs:824 中失敗的複製路徑開始,然後檢查 Core/Ensure.cs:154 和 :172 中的錯誤檢查。如果可能,請在 Alpine Linux 上使用 .NET 8,並採用所回報的私人儲存庫和驗證設定進行重現。完成的標準是找出原因並讓複製成功,或回報更具可操作性的錯誤。

由索引模型根據 Issue 內容生成。

評估

技術堆疊
csharp, git
領域
devtools
Issue 類型
缺陷
難度
5/5
預估耗時
一週以上
活躍度
停滯
描述清晰度
需要釐清
新手友好度
25/100

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