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url_allowlist only works against DATABASE_URL

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#684 1 則留言 2 個 reaction 已指派 0 人 在 GitHub 檢視

還沒有人認領這個 Issue。

評估

難度
4/5
預估耗時
3-5 天
新手友好度
25/100
Issue 類型
缺陷
描述清晰度
基本清楚
活躍度
停滯
技術堆疊
postgresql, rails, ruby

研究方向

先追蹤 Safeguard 對 url_allowlist 的處理方式,以及 cleaners 如何被呼叫,接著將其與 database_cleaner-active_record 的 ActiveRecord 連線進行比較。當 safeguard 檢查的是從 database.yml 或 DATABASE_URL 實際使用的連線,而不是只依賴 ENV['DATABASE_URL'](包括該變數未設定的情況)時,即表示完成。

由索引模型根據 Issue 內容生成。

描述

I debated filing this against database_cleaner-active_record, but after digging in a bit I think it would need a more comprehensive fix.

I have a Rails app running in a Docker stack, where under test, the database is configured the old-fashioned way in database.yml rather than with ENV['DATABASE_URL'] -- or rather, both are supported, but if DATABASE_URL isn't set, it falls back to a hard-coded value.

test:
  url: <%= ENV['DATABASE_URL'] ||'postgres://root:root@db/framework-test?pool=5' %>

I wanted a safeguard that would work both with the Docker stack in CI, or for a developer setting up a test database locally or on some other database server, so I assumed I had to set url_allowlist. My first attempt was this lambda:

  DatabaseCleaner.url_allowlist = [
    ->(url) { URI.parse(url).path.end_with?('framework-test') }
  ]

This blows up, though, because the URL that gets passed here is ENV['DATABASE_URL'], and URI.parse(nil) fails.

My next concern was that DatabaseCleaner would truncate the database at ENV['DATABASE_URL'] (if it exists) rather than the one ActiveRecord is actually using in tests. Thankfully database_cleaner-active_record is smarter than that, and it's using the ActiveRecord connection.

But it seems like if that's how it actually works, Safeguard should somehow hook into that, rather than relying on ENV['DATABASE_URL']. Maybe instead of running once before all cleaners, it should be run per-cleaner, and the cleaner implementations should be responsible for providing the URL they're actually using?

主要語言
Ruby
星號
3k
分支
485
PR 合併指標
30 天內沒有已合併 PR

環境準備

我們還沒有檢查這個專案的環境設定檔。先看它的 README,通用步驟見我們的新手貢獻指南。

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。

DatabaseCleaner/database_cleaner 的其他 Issue

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