子文件夹中提供 Discourse，登录重定向到主页

zogstrip · 2025 年12 月 10 日 22:47

@here 抱歉，我想我已经成功重现并修复了这个问题

github.com/discourse/discourse

FIX: login redirect to root path in subfolder setup

main ← login-redirect-and-subfolder-equals-boom

opened 10:46PM - 10 Dec 25 UTC

ZogStriP

+43 -16

When Discourse is served from a subfolder (e.g., /forum), logging in from the lo…gin page itself would incorrectly redirect users to the root domain (/) instead of the subfolder root (/forum/). The issue had two causes: 1. The login path check in `extract_redirect_param` used the Rails `login_path` helper which returns "/login" without the subfolder prefix. When the browser sent the full path "/forum/login", the check `starts_with?("/login")` failed to match, treating it as a valid redirect target instead of rejecting it. 2. The `enter` method didn't apply the subfolder prefix when falling back to the root path "/". Fixed by: - Building the full login path with `Discourse.base_path` for accurate matching in subfolder setups - Wrapping the fallback "/" with `path()` in `enter` to respect the subfolder configuration - Extracting redirect validation into `valid_redirect_uri?` for clarity Ref - meta/t/386619

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子文件夹中提供 Discourse，登录重定向到主页

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