Same 8 findings fixed on upstream-pr/amneziawg, ported here since this
fork's internal/amneziawg + related web/service files predate that PR
branch's own fix-up commits:
1. hostRulesFingerprint now folds in a peer's IPv4 whenever
ForwardedPorts is set, not only when RouteThroughXray is on, so a
re-IP forces the bounce needed to move the DNAT rule too.
2. ValidateConfigValue (new, params.go) rejects control characters in
server/client keys, email and I1 at save time; sanitizeConfigValue
strips them defensively at .conf-render time.
3. checkForwardedPortsConflict now scopes to node_id IS NULL and takes
a pre-loaded portConflictContext (loadPortConflictContext), so a
port used only on another node isn't a false collision and an
inbound with N clients costs one query instead of N.
4. PostDown commands are now best-effort (appendOrTrue) so an external
firewall flush can't abort the rest of the teardown chain.
5. The "ip rule list | grep -q" existence check now uses
grep -c >/dev/null, avoiding a pipefail/SIGPIPE false negative that
could re-add a duplicate rule.
6. route_egress.go's stale "always present, no opt-in" comment
corrected to describe the real RouteThroughXray-gated behavior.
(This fork's genAmneziaWGLink already emits vpn://, and there's no
upstream-facing docs page here, so neither needed the PR branch's
Finding 6 docs/link-format changes.)
7. install.sh: Arch's ndppd install uses pacman -Sy, not -Syu, matching
every other pacman call in the script; should_install_amneziawg
short-circuits to yes when awg is already installed, so `x-ui
update` doesn't re-prompt -- this fork's own opt-out-by-default
philosophy for should_install_amneziawg is unchanged, only the
redundant-reprompt behavior is fixed.
8. CollectTraffic checks pointer identity before writing back a
traffic-counter baseline, so a concurrent restart's freshly-reset
(empty) baseline can't be clobbered by stale pre-restart counters.
sweepOrphansLocked no longer permanently disables itself on a
transient os.ReadDir failure.
go build/vet/test and frontend typecheck/lint/build/vitest all pass.