brother: emits declared in the module's own list too, parts of 700 KiB at most, a duplicates window on device-asks, and the built binary ignored (issue 1453)

2026-10-20 21:37:07 +02:00
parent b430b35633
commit 02cb424d5c
8 changed files with 53 additions and 11 deletions
@@ -79,6 +79,14 @@ it for the device process alone; the tools' bundle is given no such name, and `a
 no tool file imports the package that reads it. While it is not given, `printer.settings` answers that the secret
 is not given, and the printer is not contacted.

+### Documents in parts
+
+The bus refuses a message over 1 MiB, so a document crosses it in parts of at most 700 KiB (both the size this module
+cuts and the most it accepts; ADR 0468 clause 3 says 768 KiB, which is 1 MiB of base64 before the message around it),
+counted from 1, each carried base64-encoded in JSON. A caller joins the parts and checks the SHA-256. The bucket
+(`s3-bucket`, from `minio`) is spoken to by the device process alone, from `store.json` (owner `brother-device`, mode
+0600), with the S3 client mesh-mail uses; a scan is kept once as `<sha256>.pdf` and an upload as `uploads/<id>.<ext>`.
+
 ### The device process

 `brother device` runs as `brother-device` with a bus account of its own (the own secret `broker-device`), never a