codeant-ai-for-open-source[bot] commented on PR #35021:
URL: https://github.com/apache/superset/pull/35021#issuecomment-3985211555
## **Sequence Diagram**
External links in alert/report emails are rewritten to a redirect endpoint.
Internal links redirect immediately while external links display a safety
warning for user confirmation.
```mermaid
sequenceDiagram
participant EmailSys as Email System
participant User as User
participant Backend as Redirect Endpoint
participant WarningPage as Warning Page
EmailSys->>EmailSys: Generate email content<br/>Rewrite external links
to /redirect/?url=...
User->>Backend: Click link in email<br/>GET /redirect/?url=target
alt Internal URL (safe)
Backend-->>User: 302 Redirect to target
else External URL (needs confirmation)
Backend-->>WarningPage: Render warning page
WarningPage->>User: Display confirmation dialog<br/>with "Trust this
URL" option
User->>WarningPage: Click Continue
WarningPage-->>User: Navigate to external URL
end
```
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