The node client gate loaded the records it judges with LOWER(email) IN
the lowered reported emails, but SQLite's LOWER folds ASCII only. For a
stored email such as Иван no record was found, so the node's claim was
treated as a new client and passed untouched, rewriting a client that
lives only on the master's inbounds.
The lookup matches the lowered or the stored spellings, as the shared
email checks already do.
The client gate refused a node's entry for an email the master serves
only on its own or another node's inbounds, and so also dropped the
node's usage for it; on top of that, a refused or rewritten entry made
the master mark the node dirty and push its own settings back, which
deleted the node's local client of that email. A master → node → node
chain whose panels each serve the same client therefore stopped adding
the nodes' usage to the master's totals.
Such an email is now usage-only: the node's usage still adds to the
master's row, while its enable, expiry and record values do not. A
claim rewrite no longer forces a re-push; the stored, filtered settings
are what the reconcile fingerprint tracks.
A subscription renders an inbound's stream and remark once per client
and per external proxy, and every client holding its subId, all values
a node chooses: an inbound with a megabyte stream and thousands of
external proxies, or many clients sharing one subId, made a single
unauthenticated request cost gigabytes of memory and minutes of CPU.
A reported inbound whose streamSettings exceeds 64 KiB, sniffing 16 KiB
or remark 1 KiB, or that lists more than 64 external proxies, is no
longer taken in (an existing one keeps its stored values), and a node
can no longer give a client a subId another client already holds,
including another one in the same snapshot.
The set that kept a refused node claim's warning to one line was keyed
by the reported email and never forgot one. Some refused emails, such
as a padded one or a new client holding a foreign subId, match no row
on the master, so a node rotating them grew the set without bound; a
snapshot made only of padded entries also skipped the warning.
Each node now keeps just the emails its latest snapshot was refused,
both return paths log, and the logged email is cut to 64 characters.
A node snapshot was merged into the master's client records by email, and
the only ownership check filtered one derived copy of it: the node's
settings were still stored and re-synced later, its stats still merged,
and a record linked to the master as well as the node took every value
the node reported, including credentials rendered into the master's own
Xray config.
Each snapshot now passes one gate before anything is written. A record
also linked to the master or another node keeps the master's values
apart from per-link fields and the lifecycle the merge already settles;
a record linked only elsewhere, a detached record, a padded or
case-variant email and a new client holding another client's subId are
dropped from the stored settings as well. A soft-orphaned record can be
taken back only by the node whose merge orphaned it, which the new
clients.sync_orphaned_by column records. A node tunnel no longer owns
the peer keys of a client a master-local tunnel also serves.