Add a nested field-level allowlist under [server] so listeners can be managed remotely without exposing server.api auth_header or other bind-identity fields.
The save and patch paths under test are async, so the tests now use tokio::fs instead of blocking std::fs. The config_store tests also switch to tempfile::tempdir() for panic-safe cleanup instead of manual remove_dir_all.
render_top_level_section serialized a section in isolation, so nested sub-tables ([general.links], [general.modes]) were emitted as bare [links]/[modes] top-level headers and duplicated on load. Serialize the section inside a wrapper keyed by its name to keep dotted headers.
find_toml_table_bounds only spanned the first contiguous block, leaving scattered sub-tables behind as duplicates on repeated saves. Replace it with find_all_table_blocks and drop every block belonging to the section during upsert.
show_link is a legacy top-level scalar/array, not a [table]; the upsert machinery appended a bare key at EOF (landing inside the previous table) and duplicated it on repeat. Remove it from EDITABLE_SECTIONS; the editable general.links.show sub-table covers the case.
Add tests for dotted sub-tables, idempotent saves, non-contiguous layouts, show_link rejection, and integer/float/string coercion of public_port.
- bound API and metrics connection handling
- default metrics listener to localhost
- reject untrusted PROXY protocol peers before parsing headers
- cap API request body size and PROXY v2 payload allocation
- validate route usernames and TLS domains consistently
PatchUserRequest now uses Patch<T> for the five removable fields
(user_ad_tag, max_tcp_conns, expiration_rfc3339, data_quota_bytes,
max_unique_ips). Sending JSON null drops the entry from the
corresponding access HashMap; sending 0 is preserved as a literal
limit; omitted fields stay untouched. The handler synchronises the
in-memory ip_tracker on both set and remove of max_unique_ips. A
helper parse_patch_expiration mirrors parse_optional_expiration for
the new three-state field. Runtime semantics are unchanged.
Introduce a three-state Patch<T> (Unchanged / Remove / Set) and a
serde helper patch_field that distinguishes an omitted JSON field
from an explicit null. Wired up next as the field type for the
removable settings on PATCH /v1/users/{user}.
- Relocate tg_connect from [timeouts] to [general] with validation and docs updates.
- Apply rustfmt to per-attempt upstream connect timeout expression in upstream.rs.
- Pass tg_connect_timeout_secs in all UpstreamManager::new test call sites.
- Wire hot reload and runtime snapshot to general.tg_connect.
Lightweight endpoint that returns only users with active TCP connections
and their IP addresses. Calls only get_active_ips_for_users() without
collecting recent IPs or building full UserInfo, significantly reducing
CPU and memory overhead compared to /v1/stats/users.
Alexey