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fix(mam): keep the session ID on MAM and rerun Prowlarr's exact search (#1399)

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Follow-up to #1390.

- The origin came from each result's infoUrl, matched by a regex that
did
  not check the host, and the mam_id cookie had no domain. Any Prowlarr
  indexer returning a URL like https://evil.example?myanonamouse.net/t/1
  sent the session ID to evil.example. Requests now always go to
https://www.myanonamouse.net (Prowlarr's only MAM URL), with the cookie
  as a header and redirects off. Only results from Prowlarr's
  MyAnonamouse indexer are looked up, and their URLs must be on
  myanonamouse.net.
- The lookup searched every category and read one page, so for common
  titles most of Prowlarr's results were missed (a "Dune" audiobook
  search: 56 audiobooks on the first 100 of 328 matches). It now reruns
  Prowlarr's exact search: the same query clean-up, the MAM main
  categories behind the Torznab categories searched (13/15/16 for
  audiobooks, 14 for e-books, all once expanded), and the MAM indexer's
  own search type, search-in options and languages. Further pages are
  read while IDs are missing, page 1 of every title first, at most 4
  requests per search.
- Failed requests back off for 1, 2, 4 ... up to 30 minutes. The 10th
  consecutive failure stops enrichment until Test MAM Session passes,
  the session ID changes, or Shelfmark restarts.
- The detail cache prunes expired entries instead of growing for as long
  as Shelfmark runs.
This commit is contained in:
CaliBrain
2026-09-25 21:21:54 -04:00
committed by GitHub
parent efb1f66bc3
commit 893f7bdb92
6 changed files with 760 additions and 111 deletions
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docs/myanonamouse-enrichment.md
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@@ -35,4 +35,8 @@ Compare it with the IP listed next to the session on MAM's security page.
## How it works
After a Prowlarr search, Shelfmark sends the same query text to MAM's JSON search API (normally one request) and matches torrents back to Prowlarr's results by their MAM torrent ID. Lookups are cached for an hour, stay inside the Prowlarr search time budget, and never fail the search: if MAM errors or rejects the session, the release list simply shows without the extra columns filled in.
After a Prowlarr search, Shelfmark reruns the search Prowlarr sent to MyAnonamouse's JSON search API: the same cleaned-up query text, the same categories (audiobooks, or e-books), and your MyAnonamouse indexer's own options from Prowlarr (search type, search in description/series/filenames, languages). That normally returns the same torrents in one request per title. Shelfmark then matches them back to Prowlarr's results by their MAM torrent ID. Only results from the MyAnonamouse indexer are looked up, and the session ID is only ever sent to `https://www.myanonamouse.net`.
If some torrents are missing from the first page, Shelfmark reads further pages, up to 4 requests per search. Lookups are cached for an hour, stay inside the Prowlarr search time budget, and never fail the search: if MAM errors or rejects the session, the release list simply shows without the extra columns filled in.
After a failed request (a 403, a timeout, an unexpected reply), Shelfmark waits before trying MAM again: 1 minute, then 2, 4 and so on, up to 30 minutes. After 10 failures in a row it stops using MAM. **Test MAM Session** (once it succeeds), a new session ID, or a restart turns it back on. Each failure is logged with the reason.