- Source keys carry the normalised origin of the Paperless-ngx or Papra
they came from (source_instance on the document, the alias and the
purge ledger; unique NULLS NOT DISTINCT). A key stored without one
(v1.39.2 imports) matches any instance of its system, and a lookup
without one matches any stored instance. The upload route, the lookup
route and the import script accept or send it; backups carry it.
- Saving a connection reuses the stored token only for the same origin;
a new origin needs the token again (422 tokenRequired).
- Document ids are checked against what each system issues (Paperless
digits, Papra [A-Za-z0-9_-], never . or ..) before any URL is built;
the Papra organization id likewise.
- Paperless API 9 filters dates on created__gte / created__lte, in the
picker and the script. A search page the local re-check empties reads
on, up to five source pages. Tags are read past the first 250.
- The import's key pre-check uses the lookup allowance, a failed fetch
no longer charges the upload allowance, and one import per key runs at
a time under an advisory lock, so a double click downloads once.
- Reading and deleting one's own connection works with the documents
module off and the operator list unset.
Marc-André Bombeck