The 3.3.25 diagnostics captured the live upload page: doodstream moved the
upload server from a `srv_url` JS variable into the multipart form's action,
e.g. action="https://xxx.cloudatacdn.com/upload/01?SESSID", with a per-page
session token in the query that matches the page's hidden sess_id input. The
old parser found neither and fell through to the stale hardcoded node, which
returns an empty filecode.
- Parse the upload server from the form action (matched via the /upload/ path),
un-escaping & in the query string.
- Refresh this.sessId from the SAME page (only on action match) so the
multipart sess_id field matches the node URL's token; login-time and node
tokens otherwise diverge. Keep the existing sessId if the input is absent.
- Keep the legacy ?op=upload_server JSON and srv_url paths as fallbacks; the
fail-fast throw from 3.3.25 stays as the last resort.
- Tests: form-action parse, sess_id refresh, & un-escape (9 total).
Whether this fully resolves the uploads is for the next server logs to confirm;
both the node and sess_id fixes are individually correct.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>