The rule editor no longer requires writing expr by hand. Conditions are rows of
field + operator + values joined with AND or OR, each row negatable, and the
generated expression is shown live and validated by the engine before a rule is
accepted. Raw expression and YAML editing are still available.
Fields cover the connection (protocol, source/destination IP and port), domains
(TLS SNI, QUIC SNI, DNS query name), HTTP (host, path, method, User-Agent) and
protocol detection. Operators cover CIDR membership, GeoIP countries, GeoSite
categories, port ranges, wildcards, substrings and regular expressions.
Multiple values in a row are OR-ed, so one row holds a whole domain or country
list.
Wildcards compile to the cheapest expression that matches them: *.x.com
becomes endsWith, x.* startsWith, *ad* contains, and only a star in the
middle falls back to a regular expression. Values are validated as they are
typed, including a hint when a star is used with an operator that would match
it literally.
Country and category pickers are backed by the databases the engine actually
loaded, via a new GET /api/v1/geo endpoint (cached, loaded on demand) built on
new listing methods in the geo package. Country names and flags come from
Intl.DisplayNames, so no name table is shipped. Note that the v2geo format has
no AS numbers; the provider groups it does contain (cloudflare, google,
telegram, ...) are listed alongside the countries.
Opening an existing rule parses its expression back into conditions. Anything
the builder cannot represent opens in the expression editor with a warning
rather than being rewritten. ruleset/expr_test.go pins the canonical
expressions the builder generates and compiles them with the real engine, and
the devserver now uses the real ruleset compiler so the same errors show up
during frontend work.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Adds an optional web dashboard served by OpenGFW itself, enabled with a new
`web` section in the config file.
Backend (web package, decoupled from engine/io so it builds on any OS):
- hub.go collects statistics off the engine logger callbacks: atomic counters,
two ring-buffered time series (10s and 1min buckets), top N hosts/blocked
destinations/rules/analyzers, and a 512 entry event buffer fanned out to
connected clients over SSE. Slow clients drop frames instead of blocking
the engine.
- api.go exposes /api/v1 for info, meta, metrics, events, the SSE stream and
ruleset read/validate/replace.
- auth.go implements password login with in-memory session tokens and login
rate limiting. Mutating endpoints require the bearer token (the session
cookie is only accepted for GET), which makes them CSRF-safe.
- cmd/web.go implements the rule manager: rules are compiled before anything
is written, the file is replaced atomically and the engine is hot reloaded.
The SIGHUP handler now shares that same path.
- web/devserver serves the UI with synthetic traffic for frontend work on
machines where the engine itself cannot be built.
Frontend (web/frontend, Vue 3 + Vite + Tailwind CSS v4 + Reka UI):
dashboard, live event feed with analyzer property inspection, visual and YAML
rule editors, analyzer overview and settings. Responsive down to phone sizes
with a bottom tab bar and bottom-sheet dialogs, plus light/dark themes and
English/Chinese translations.
The built UI in web/dist is committed and embedded with go:embed so that
`go build` works without Node; CI builds the frontend and checks that the
committed output is up to date.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
