Commit Graph
2 Commits
Author SHA1 Message Date
bflatastic 98c4753118 M9: open hosting: fair limits for shared addresses
Third review:
- a broadcast counts once per recipient block, welcomes don't count
  against block caps, and presence, cursor chat and pings have their own
  per-address budget, so an office behind one address works together
- when everyone's reading budget runs out, the biggest readers are cut
  off until it fits (their bytes freed at once), no cliff
- block counters are forgotten once only the table holds them
- install.sh: root's downloads, clone, swap file and built binary in a
  root-only directory; the build user builds its own copy; the binary is
  copied out with the build user's rights
- recommended open-mode settings in install.sh's config and the docs
2026-10-12 11:40:03 +07:00
bflatastic e0435d4eb4 M9: close the remaining open-hosting DoS paths
Second security review:
- a broadcast counts once against the queued-bytes budget; each block of
  addresses gets at most an eighth; when the budget runs out the biggest
  consumer is shed, not the receiver
- forced compactions at most once a minute per file
- plugin downloads check the per-address share before the global budget
  and before reading
- install.sh never replaces a Caddyfile with other sites (one import line,
  once; install-test.sh in packaging lint); the built binary runs only as
  the server's account
- bytes being read count against per-block and global budgets, the
  biggest readers dropped first
- block multipliers x2 (/56) and x4 (/48), connection caps at most a
  sixteenth/eighth of all; global publish and download budgets eight times
  a /48's share
- problems capped at 200; writes refused below max(1 GiB, two files) free;
  the private-server file cap documented
2026-10-12 11:40:03 +07:00