[fdb]

Enables the old Tender forum domain to redirect to the new forum, and rewrites links in imported posts to point to their new locations.

Summary

When the old forum domain (support.nodebox.net) is pointed at the Worker, all requests now redirect to the same page on the new forum. Old discussion URLs resolve to their topics (even if moved or renamed, via discussion number), category pages to their categories, and other paths to the same location. Additionally, links in post bodies that reference the old forum are rewritten during import to point to new topics, categories, and files.

Key changes

• New legacy.ts module: Extracts Tender URL parsing logic (tenderDiscussionNumber, tenderCategoryPermalink, isLegacyHost) and adds resolveLegacyPath to look up where old paths live on the forum.

• Import link rewriting: The importer now rewrites links in post bodies:

  • Bare URLs to old attachments become new file URLs
  • Bare URLs to old discussions become absolute links to new topics (e.g., https://forum.nodebox.net/t/100/slug)
  • Markdown link targets [text](/path) become relative paths
  • Links to moved/renamed discussions are found by discussion number
  • Links to *.tenderapp.com are rewritten (can't be redirected server-side)
  • Links to other hosts are left unchanged

• Legacy domain middleware: New middleware in app.ts intercepts requests on hosts in LEGACY_HOSTS and redirects them via resolveLegacyPath. Prevents open redirects by concatenating paths rather than resolving with new URL().

• Configuration: Added LEGACY_HOSTS environment variable (comma-separated) and FORUM_URL for import (defaults to https://forum.nodebox.net).

• Tests: Added test for link rewriting in posts and legacy domain redirects, including moved discussions and edge cases.

Implementation details

• Link detection uses a regex that matches absolute URLs and relative paths to old attachments/discussions, then strips trailing punctuation that shouldn't be part of URLs.
• Discussion lookup is two-stage: exact path first, then by discussion number (handles renames/moves).
• Category lookup uses slugified permalinks to match imported categories.
• Bare URLs stay absolute only when they were originally absolute; Markdown link targets become relative paths.

https://claude.ai/code/session_01PrUrXzViMZ25BLZJzy9HfR