Port awg-agent to Go: awg-control agent
- internal/agent: outbound WSS to core with SPKI pin checked inside the TLS handshake, Ed25519 challenge-response, one-shot join secret (dropped from memory and cli.env after the first ready), forwarding of core requests to the local awg-ctrl with an internal token, dead-connection timer on pings, backoff up to a minute (a minute after 4003) - path filter is stricter than the Node one where it relied on WHATWG URL normalisation: backslashes, a leading "//" and %2e dot segments are rejected - tests: end-to-end against a fake TLS core and a fake awg-ctrl; also checked by hand against the real awg-ui/nodes.ts hub - CI: Go build, vet and race tests on GitHub and Gitea
This commit is contained in:
@@ -26,6 +26,18 @@ jobs:
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- name: Installer syntax
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run: bash -n install.sh
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# Go-переписывание (awg-control): сборка, vet и тесты. composites выключен —
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# jsjson.KV{k, v} без имён полей написан так намеренно.
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- uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Go build, vet, test
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run: |
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go build ./...
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go vet -composites=false ./...
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go test -race ./...
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- name: awg-ctrl types
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working-directory: awg-ctrl
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run: |
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@@ -23,6 +23,18 @@ jobs:
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- name: Installer syntax
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run: bash -n install.sh
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# Go-переписывание (awg-control): сборка, vet и тесты. composites выключен —
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# jsjson.KV{k, v} без имён полей написан так намеренно.
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- uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Go build, vet, test
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run: |
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go build ./...
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go vet -composites=false ./...
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go test -race ./...
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- name: awg-ctrl types
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working-directory: awg-ctrl
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run: |
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Generated
+4415
File diff suppressed because it is too large
Load Diff
@@ -2,9 +2,13 @@
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package main
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"github.com/maeneko/forgetting/internal/agent"
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"github.com/maeneko/forgetting/internal/ctrl"
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)
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@@ -24,6 +28,20 @@ func main() {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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case "agent":
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c, err := agent.ConfigFromEnv()
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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a, err := agent.New(c)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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a.Run(ctx)
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default:
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fmt.Fprintf(os.Stderr, "awg-control: неизвестная команда %q\n", os.Args[1])
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os.Exit(1)
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@@ -0,0 +1,447 @@
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// Package agent — агент ноды (порт awg-agent/index.ts). Сам открывает исходящее
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// WSS-соединение к core (awg-ui), доказывает свою личность подписью Ed25519 и исполняет
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// присланные запросы на локальном awg-ctrl (127.0.0.1). Входящих портов у ноды нет,
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// awg-ctrl остаётся закрытым от сети. Протокол и формат join-строки — docs/node-protocol.md.
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package agent
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import (
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"bytes"
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"context"
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"crypto/ed25519"
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"crypto/rand"
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"crypto/sha256"
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"crypto/tls"
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"crypto/x509"
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"encoding/base64"
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"encoding/pem"
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"errors"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/coder/websocket"
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"github.com/maeneko/forgetting/internal/iauth"
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"github.com/maeneko/forgetting/internal/jsjson"
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)
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var b64 = base64.RawURLEncoding
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const (
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handshakeTimeout = 10 * time.Second
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deadAfter = 60 * time.Second // core пингует чаще; тишина дольше — соединение мёртвое
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maxPayload = 4 * 1024 * 1024
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ctrlTimeout = 110 * time.Second
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maxBackoff = 60 * time.Second
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closeAuthFailed = 4003
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)
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type Config struct {
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CoreHost string
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CorePort int
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CorePin string // SHA-256 SPKI сертификата core, base64url
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NodeID int
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Ctrl string // http://127.0.0.1:PORT
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NodeKeyFile string
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InternalKey string
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CLIEnvFile string
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JoinSecret string // одноразовый, живёт до первого успешного подключения
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Version string
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Logf, Errorf func(format string, a ...any)
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}
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// envFromFile — значение KEY=… из .env (как в Node-версии: первая строка, обрезанная).
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func envFromFile(file, key string) string {
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raw, err := os.ReadFile(file)
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if err != nil {
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return ""
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}
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m := regexp.MustCompile(`(?m)^\s*` + regexp.QuoteMeta(key) + `\s*=\s*(.*)$`).FindSubmatch(raw)
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if m == nil {
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return ""
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}
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return strings.TrimSpace(string(m[1]))
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}
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// ConfigFromEnv собирает конфиг так же, как Node-агент. Каталог агента — рабочий каталог
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// процесса (CLI запускает сервис с cwd = <root>/awg-agent): там node.key по умолчанию, а
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// .env проекта — уровнем выше.
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func ConfigFromEnv() (Config, error) {
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cwd, _ := os.Getwd()
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atoi := func(k string) int { n, _ := strconv.Atoi(strings.TrimSpace(os.Getenv(k))); return n }
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or := func(k, def string) string {
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if v, ok := os.LookupEnv(k); ok {
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return v
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}
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return def
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}
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c := Config{
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CoreHost: os.Getenv("CORE_HOST"),
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CorePort: atoi("CORE_PORT"),
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CorePin: os.Getenv("CORE_PIN"),
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NodeID: atoi("NODE_ID"),
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Ctrl: "http://127.0.0.1:" + or("AWGCTRL_PORT", "3005"),
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NodeKeyFile: or("NODE_KEY_FILE", filepath.Join(cwd, "node.key")),
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InternalKey: or("INTERNAL_AUTH_KEY_FILE", "/etc/amnezia/amneziawg/internal_auth_private.key"),
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CLIEnvFile: os.Getenv("CLI_ENV_FILE"),
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JoinSecret: os.Getenv("JOIN_SECRET"),
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Version: os.Getenv("VERSION"),
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}
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if c.Version == "" {
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c.Version = envFromFile(filepath.Join(cwd, "..", ".env"), "VERSION")
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}
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if c.CoreHost == "" || c.CorePort == 0 || c.CorePin == "" || c.NodeID == 0 {
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return c, errors.New("agent: не заданы CORE_HOST / CORE_PORT / CORE_PIN / NODE_ID — выполните `awg-ctrl join <ссылка>`")
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}
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return c, nil
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}
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type Agent struct {
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c Config
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nodeKey ed25519.PrivateKey
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nodePubRaw string
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internalKey ed25519.PrivateKey // nil — запросы к awg-ctrl уйдут без токена и получат 401
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mu sync.Mutex
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joinSecret string
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http *http.Client
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}
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// loadNodeKey — личность ноды (Ed25519): создаётся один раз, приватная часть с ноды не уходит.
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func loadNodeKey(file string, logf func(string, ...any)) (ed25519.PrivateKey, error) {
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if _, err := os.Stat(file); errors.Is(err, os.ErrNotExist) {
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_, priv, err := ed25519.GenerateKey(rand.Reader)
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if err != nil {
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return nil, err
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}
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der, err := x509.MarshalPKCS8PrivateKey(priv)
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if err != nil {
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return nil, err
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}
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if err := os.WriteFile(file, pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: der}), 0o600); err != nil {
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return nil, err
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}
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logf("agent: создан ключ ноды %s", file)
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}
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return iauth.LoadPrivate(file)
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}
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func New(c Config) (*Agent, error) {
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if c.Logf == nil {
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c.Logf = func(f string, a ...any) { fmt.Fprintf(os.Stdout, f+"\n", a...) }
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}
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if c.Errorf == nil {
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c.Errorf = func(f string, a ...any) { fmt.Fprintf(os.Stderr, f+"\n", a...) }
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}
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key, err := loadNodeKey(c.NodeKeyFile, c.Logf)
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if err != nil {
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return nil, fmt.Errorf("agent: ключ ноды %s: %w", c.NodeKeyFile, err)
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}
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a := &Agent{
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c: c, nodeKey: key, joinSecret: c.JoinSecret,
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nodePubRaw: b64.EncodeToString(key.Public().(ed25519.PublicKey)),
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// awg-ctrl на loopback: системный прокси (HTTPS_PROXY и т. п.) сюда не нужен.
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http: &http.Client{Transport: &http.Transport{Proxy: nil}, Timeout: ctrlTimeout},
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}
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if ik, err := iauth.LoadPrivate(c.InternalKey); err == nil {
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a.internalKey = ik
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} else {
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c.Errorf("agent: приватный ключ внутренней авторизации не найден: %s", c.InternalKey)
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}
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return a, nil
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}
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// authMsg дублируется в awg-ui/nodes.ts.
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func authMsg(nonce string, nodeID int) []byte {
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return []byte("awg-node-v1\n" + nonce + "\n" + strconv.Itoa(nodeID))
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}
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// ── Запросы core → awg-ctrl ────────────────────────────────────────────────
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var methods = map[string]bool{"GET": true, "POST": true, "PUT": true, "DELETE": true}
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var rePath = regexp.MustCompile(`^/[\x21-\x7e]*$`)
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// pathAllowed — агент не открытый прокси: только API самого awg-ctrl. Строже Node-версии
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// там, где та полагалась на нормализацию WHATWG URL: обратный слэш и «//» в начале
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// (смена хоста) отвергаются сразу, «.»/«..» — и в %2e-записи.
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func pathAllowed(p any) (string, bool) {
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s, ok := p.(string)
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if !ok || len(s) > 2048 || !rePath.MatchString(s) || strings.HasPrefix(s, "//") || strings.Contains(s, `\`) {
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return "", false
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}
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pathname := s
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if i := strings.IndexAny(pathname, "?#"); i >= 0 {
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pathname = pathname[:i]
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}
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for _, seg := range strings.Split(pathname, "/") {
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switch strings.ToLower(strings.ReplaceAll(strings.ReplaceAll(seg, "%2e", "."), "%2E", ".")) {
|
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case ".", "..":
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return "", false
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}
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}
|
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if pathname == "/health" || strings.HasPrefix(pathname, "/api/") || strings.HasPrefix(pathname, "/awg/") {
|
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return s, true
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}
|
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return "", false
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}
|
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|
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type reply struct {
|
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status int
|
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data any
|
||||
}
|
||||
|
||||
func errReply(status int, msg string) reply {
|
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return reply{status, jsjson.Object{{Key: "error", Val: msg}}}
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}
|
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|
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// execute выполняет запрос core на локальном awg-ctrl. Ответ возвращается как его разобрал
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// бы axios: JSON — значением, иначе строкой (пустое тело — "").
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func (a *Agent) execute(m jsjson.Object) reply {
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method, _ := m.Get2("method").(string)
|
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method = strings.ToUpper(method)
|
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p, ok := pathAllowed(m.Get2("path"))
|
||||
if !methods[method] || !ok {
|
||||
return errReply(400, "Запрос не разрешён агентом")
|
||||
}
|
||||
var body io.Reader
|
||||
if v, has := m.Get("body"); has && v != nil {
|
||||
raw, err := jsjson.Marshal(v)
|
||||
if err != nil {
|
||||
return errReply(400, "Запрос не разрешён агентом")
|
||||
}
|
||||
body = bytes.NewReader(raw)
|
||||
}
|
||||
u, err := url.Parse(a.c.Ctrl + p)
|
||||
if err != nil {
|
||||
return errReply(400, "Запрос не разрешён агентом")
|
||||
}
|
||||
u.Fragment = ""
|
||||
req, err := http.NewRequest(method, u.String(), body)
|
||||
if err != nil {
|
||||
return errReply(400, "Запрос не разрешён агентом")
|
||||
}
|
||||
req.Header.Set("Content-Type", "application/json")
|
||||
if a.internalKey != nil {
|
||||
req.Header.Set("Authorization", "Bearer "+iauth.Mint(a.internalKey, "awg-agent", time.Now()))
|
||||
}
|
||||
resp, err := a.http.Do(req)
|
||||
if err != nil {
|
||||
return errReply(502, "awg-ctrl недоступен")
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
raw, err := io.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
return errReply(502, "awg-ctrl недоступен")
|
||||
}
|
||||
if len(raw) == 0 {
|
||||
return reply{resp.StatusCode, ""}
|
||||
}
|
||||
if v, err := jsjson.Decode(raw); err == nil {
|
||||
return reply{resp.StatusCode, v}
|
||||
}
|
||||
return reply{resp.StatusCode, string(raw)}
|
||||
}
|
||||
|
||||
// ── Соединение с core ──────────────────────────────────────────────────────
|
||||
|
||||
func spkiPin(rawCert []byte) (string, error) {
|
||||
cert, err := x509.ParseCertificate(rawCert)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
sum := sha256.Sum256(cert.RawSubjectPublicKeyInfo)
|
||||
return b64.EncodeToString(sum[:]), nil
|
||||
}
|
||||
|
||||
var errPin = errors.New("сертификат core не совпал с pin — соединение отклонено")
|
||||
|
||||
// tlsConfig — сертификат core самоподписанный: цепочку не проверяем, доверие даёт pin.
|
||||
// Проверка внутри TLS-рукопожатия: секрет и подпись уходят только тому, чей сертификат
|
||||
// совпал с pin из join-строки.
|
||||
func (a *Agent) tlsConfig() *tls.Config {
|
||||
return &tls.Config{
|
||||
InsecureSkipVerify: true,
|
||||
VerifyPeerCertificate: func(rawCerts [][]byte, _ [][]*x509.Certificate) error {
|
||||
if len(rawCerts) == 0 {
|
||||
return errPin
|
||||
}
|
||||
got, err := spkiPin(rawCerts[0])
|
||||
if err != nil || got != a.c.CorePin {
|
||||
return errPin
|
||||
}
|
||||
return nil
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
// forgetJoinSecret — после первого успешного входа секрет больше не нужен, убираем с диска.
|
||||
func (a *Agent) forgetJoinSecret() {
|
||||
a.mu.Lock()
|
||||
a.joinSecret = ""
|
||||
a.mu.Unlock()
|
||||
os.Unsetenv("JOIN_SECRET")
|
||||
if a.c.CLIEnvFile == "" {
|
||||
return
|
||||
}
|
||||
raw, err := os.ReadFile(a.c.CLIEnvFile)
|
||||
if err != nil {
|
||||
return // не критично: секрет одноразовый и с истекающим сроком
|
||||
}
|
||||
var kept []string
|
||||
for _, l := range strings.Split(string(raw), "\n") {
|
||||
if !strings.HasPrefix(l, "JOIN_SECRET=") {
|
||||
kept = append(kept, l)
|
||||
}
|
||||
}
|
||||
os.WriteFile(a.c.CLIEnvFile, []byte(strings.Join(kept, "\n")), 0o600)
|
||||
}
|
||||
|
||||
func (a *Agent) secret() string {
|
||||
a.mu.Lock()
|
||||
defer a.mu.Unlock()
|
||||
return a.joinSecret
|
||||
}
|
||||
|
||||
// connectOnce держит одно соединение до его закрытия. authFailed — core закрыл с 4003.
|
||||
func (a *Agent) connectOnce(ctx context.Context, onReady func()) (authFailed bool) {
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
defer cancel()
|
||||
|
||||
var dead *time.Timer
|
||||
var deadMu sync.Mutex
|
||||
armDead := func() {
|
||||
deadMu.Lock()
|
||||
defer deadMu.Unlock()
|
||||
if dead != nil {
|
||||
dead.Stop()
|
||||
}
|
||||
dead = time.AfterFunc(deadAfter, cancel)
|
||||
}
|
||||
defer func() {
|
||||
deadMu.Lock()
|
||||
if dead != nil {
|
||||
dead.Stop()
|
||||
}
|
||||
deadMu.Unlock()
|
||||
}()
|
||||
|
||||
tr := &http.Transport{Proxy: nil, TLSClientConfig: a.tlsConfig(), TLSHandshakeTimeout: handshakeTimeout}
|
||||
dctx, dcancel := context.WithTimeout(ctx, handshakeTimeout)
|
||||
ws, _, err := websocket.Dial(dctx, fmt.Sprintf("wss://%s/node/v1", hostPort(a.c.CoreHost, a.c.CorePort)), &websocket.DialOptions{
|
||||
HTTPClient: &http.Client{Transport: tr},
|
||||
CompressionMode: websocket.CompressionDisabled,
|
||||
OnPingReceived: func(context.Context, []byte) bool { armDead(); return true },
|
||||
})
|
||||
dcancel()
|
||||
if err != nil {
|
||||
if errors.Is(err, errPin) {
|
||||
a.c.Errorf("agent: %v", errPin)
|
||||
} else {
|
||||
a.c.Errorf("agent: %v", err)
|
||||
}
|
||||
return false
|
||||
}
|
||||
defer ws.CloseNow()
|
||||
ws.SetReadLimit(maxPayload)
|
||||
|
||||
send := func(v any) {
|
||||
if b, err := jsjson.Marshal(v); err == nil {
|
||||
ws.Write(ctx, websocket.MessageText, b)
|
||||
}
|
||||
}
|
||||
|
||||
ready := false
|
||||
for {
|
||||
_, raw, err := ws.Read(ctx)
|
||||
if err != nil {
|
||||
code := websocket.CloseStatus(err)
|
||||
if !ready && code == -1 && ctx.Err() == nil {
|
||||
a.c.Errorf("agent: %v", err)
|
||||
}
|
||||
if code == closeAuthFailed {
|
||||
a.c.Errorf("agent: core отклонил ноду (неверный ключ, просроченная или использованная ссылка)")
|
||||
}
|
||||
return code == closeAuthFailed
|
||||
}
|
||||
v, err := jsjson.Decode(raw)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
m, _ := v.(jsjson.Object)
|
||||
switch t, _ := m.Get2("t").(string); {
|
||||
case t == "hello":
|
||||
nonce, ok := m.Get2("nonce").(string)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
auth := jsjson.Object{
|
||||
{Key: "t", Val: "auth"}, {Key: "node_id", Val: a.c.NodeID},
|
||||
{Key: "sig", Val: b64.EncodeToString(ed25519.Sign(a.nodeKey, authMsg(nonce, a.c.NodeID)))},
|
||||
}
|
||||
if s := a.secret(); s != "" {
|
||||
auth = append(auth, jsjson.KV{Key: "join", Val: jsjson.Object{{Key: "secret", Val: s}, {Key: "pub", Val: a.nodePubRaw}}})
|
||||
}
|
||||
if a.c.Version != "" {
|
||||
auth = append(auth, jsjson.KV{Key: "version", Val: a.c.Version})
|
||||
}
|
||||
send(auth)
|
||||
case t == "ready":
|
||||
ready = true
|
||||
armDead()
|
||||
if onReady != nil {
|
||||
onReady()
|
||||
}
|
||||
if a.secret() != "" {
|
||||
a.forgetJoinSecret()
|
||||
a.c.Logf("agent: нода привязана к core")
|
||||
}
|
||||
a.c.Logf("agent: подключено к core")
|
||||
case t == "req" && ready:
|
||||
id, ok := m.Get2("id").(float64)
|
||||
if !ok || id != float64(int64(id)) {
|
||||
continue
|
||||
}
|
||||
// Запросы независимы, как async-обработчики в Node: медленный /awg/… не держит очередь.
|
||||
go func() {
|
||||
r := a.execute(m)
|
||||
send(jsjson.Object{{Key: "t", Val: "res"}, {Key: "id", Val: id}, {Key: "status", Val: r.status}, {Key: "data", Val: r.data}})
|
||||
}()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func hostPort(host string, port int) string {
|
||||
if strings.Contains(host, ":") && !strings.HasPrefix(host, "[") {
|
||||
host = "[" + host + "]"
|
||||
}
|
||||
return host + ":" + strconv.Itoa(port)
|
||||
}
|
||||
|
||||
// Run переподключается вечно: экспоненциальная пауза до минуты, после отказа core — минута.
|
||||
func (a *Agent) Run(ctx context.Context) error {
|
||||
a.c.Logf("agent: нода #%d → wss://%s", a.c.NodeID, hostPort(a.c.CoreHost, a.c.CorePort))
|
||||
backoff := time.Second
|
||||
for {
|
||||
authFailed := a.connectOnce(ctx, func() { backoff = time.Second })
|
||||
wait := backoff
|
||||
if authFailed {
|
||||
wait = maxBackoff
|
||||
}
|
||||
backoff = min(backoff*2, maxBackoff)
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return ctx.Err()
|
||||
case <-time.After(wait):
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,270 @@
|
||||
package agent
|
||||
|
||||
import (
|
||||
"context"
|
||||
"crypto/ed25519"
|
||||
"crypto/rand"
|
||||
"crypto/x509"
|
||||
"encoding/pem"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"net/url"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/coder/websocket"
|
||||
|
||||
"github.com/maeneko/forgetting/internal/iauth"
|
||||
"github.com/maeneko/forgetting/internal/jsjson"
|
||||
)
|
||||
|
||||
func TestPathAllowed(t *testing.T) {
|
||||
for p, want := range map[any]bool{
|
||||
"/health": true,
|
||||
"/api/users": true,
|
||||
"/api/users/a?x=1": true,
|
||||
"/awg/upgrade": true,
|
||||
"/healthz": false,
|
||||
"/api": false,
|
||||
"/etc/passwd": false,
|
||||
"//evil.com/api/x": false,
|
||||
`/\evil.com/api/x`: false,
|
||||
"/api/../etc": false,
|
||||
"/api/%2e%2E/etc": false,
|
||||
"/api/./x": false,
|
||||
"/api/a b": false,
|
||||
"api/users": false,
|
||||
42: false,
|
||||
"/api/" + strings.Repeat("a", 2048): false,
|
||||
} {
|
||||
if _, got := pathAllowed(p); got != want {
|
||||
t.Errorf("pathAllowed(%v) = %v, want %v", p, got, want)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func writeKey(t *testing.T, file string, priv ed25519.PrivateKey) {
|
||||
der, err := x509.MarshalPKCS8PrivateKey(priv)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
os.WriteFile(file, pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: der}), 0o600)
|
||||
}
|
||||
|
||||
type core struct {
|
||||
srv *httptest.Server
|
||||
frames chan jsjson.Object // всё, что прислал агент
|
||||
script func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object)
|
||||
}
|
||||
|
||||
func newCore(t *testing.T, script func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object)) *core {
|
||||
c := &core{frames: make(chan jsjson.Object, 16), script: script}
|
||||
c.srv = httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
if r.URL.Path != "/node/v1" {
|
||||
http.NotFound(w, r)
|
||||
return
|
||||
}
|
||||
ws, err := websocket.Accept(w, r, nil)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
defer ws.CloseNow()
|
||||
ctx := r.Context()
|
||||
read := func() jsjson.Object {
|
||||
_, raw, err := ws.Read(ctx)
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
v, _ := jsjson.Decode(raw)
|
||||
o, _ := v.(jsjson.Object)
|
||||
c.frames <- o
|
||||
return o
|
||||
}
|
||||
c.script(ctx, ws, read)
|
||||
}))
|
||||
t.Cleanup(c.srv.Close)
|
||||
return c
|
||||
}
|
||||
|
||||
func (c *core) pin(t *testing.T) string {
|
||||
p, err := spkiPin(c.srv.Certificate().Raw)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
return p
|
||||
}
|
||||
|
||||
func (c *core) hostPort() (string, int) {
|
||||
u, _ := url.Parse(c.srv.URL)
|
||||
port, _ := strconv.Atoi(u.Port())
|
||||
return u.Hostname(), port
|
||||
}
|
||||
|
||||
func newAgent(t *testing.T, c *core, pin, ctrlURL string) (*Agent, string) {
|
||||
dir := t.TempDir()
|
||||
host, port := c.hostPort()
|
||||
_, ik, _ := ed25519.GenerateKey(rand.Reader)
|
||||
writeKey(t, filepath.Join(dir, "internal.key"), ik)
|
||||
envFile := filepath.Join(dir, "cli.env")
|
||||
os.WriteFile(envFile, []byte("CORE_HOST=x\nJOIN_SECRET=s3cret\nNODE_ID=7\n"), 0o600)
|
||||
a, err := New(Config{
|
||||
CoreHost: host, CorePort: port, CorePin: pin, NodeID: 7, Ctrl: ctrlURL,
|
||||
NodeKeyFile: filepath.Join(dir, "node.key"), InternalKey: filepath.Join(dir, "internal.key"),
|
||||
CLIEnvFile: envFile, JoinSecret: "s3cret", Version: "Beta 0.3.4",
|
||||
Logf: t.Logf, Errorf: t.Logf,
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
return a, envFile
|
||||
}
|
||||
|
||||
func send(ctx context.Context, ws *websocket.Conn, v any) {
|
||||
ws.Write(ctx, websocket.MessageText, jsjson.MustMarshal(v))
|
||||
}
|
||||
|
||||
func TestHandshakeAndRequests(t *testing.T) {
|
||||
var internalPub ed25519.PublicKey
|
||||
ctrl := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
tok := strings.TrimPrefix(r.Header.Get("Authorization"), "Bearer ")
|
||||
if !iauth.Verify(internalPub, tok, time.Now()) {
|
||||
w.WriteHeader(401)
|
||||
io.WriteString(w, `{"error":"Неверная авторизация"}`)
|
||||
return
|
||||
}
|
||||
body, _ := io.ReadAll(r.Body)
|
||||
switch r.URL.Path {
|
||||
case "/api/users":
|
||||
w.Header().Set("Content-Type", "application/json")
|
||||
w.WriteHeader(201)
|
||||
io.WriteString(w, `{"got":`+string(body)+`, "q":"`+r.URL.RawQuery+`"}`)
|
||||
case "/health":
|
||||
io.WriteString(w, "ok")
|
||||
default:
|
||||
w.WriteHeader(204)
|
||||
}
|
||||
}))
|
||||
defer ctrl.Close()
|
||||
|
||||
results := make(chan jsjson.Object, 8)
|
||||
c := newCore(t, func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object) {
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "hello"}, {Key: "nonce", Val: "n0nce"}})
|
||||
auth := read()
|
||||
if auth == nil {
|
||||
return
|
||||
}
|
||||
join, _ := auth.Get2("join").(jsjson.Object)
|
||||
pubRaw, _ := b64.DecodeString(join.Get2("pub").(string))
|
||||
sig, _ := b64.DecodeString(auth.Get2("sig").(string))
|
||||
if !ed25519.Verify(pubRaw, authMsg("n0nce", 7), sig) {
|
||||
ws.Close(4003, "unauthorized")
|
||||
return
|
||||
}
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "ready"}})
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "req"}, {Key: "id", Val: 1}, {Key: "method", Val: "post"},
|
||||
{Key: "path", Val: "/api/users?x=1"}, {Key: "body", Val: jsjson.Object{{Key: "name", Val: "alice"}}}})
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "req"}, {Key: "id", Val: 2}, {Key: "method", Val: "GET"}, {Key: "path", Val: "/etc/passwd"}})
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "req"}, {Key: "id", Val: 3}, {Key: "method", Val: "GET"}, {Key: "path", Val: "/health"}})
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "req"}, {Key: "id", Val: 4}, {Key: "method", Val: "DELETE"}, {Key: "path", Val: "/api/x"}})
|
||||
for range 4 {
|
||||
if r := read(); r != nil {
|
||||
results <- r
|
||||
}
|
||||
}
|
||||
ws.Close(websocket.StatusNormalClosure, "")
|
||||
})
|
||||
|
||||
a, envFile := newAgent(t, c, c.pin(t), ctrl.URL)
|
||||
internalPub = a.internalKey.Public().(ed25519.PublicKey)
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||||
defer cancel()
|
||||
if a.connectOnce(ctx, nil) {
|
||||
t.Fatal("authFailed on a good handshake")
|
||||
}
|
||||
|
||||
auth := <-c.frames
|
||||
want := `{"t":"auth","node_id":7,"sig":"` + auth.Get2("sig").(string) + `","join":{"secret":"s3cret","pub":"` + a.nodePubRaw + `"},"version":"Beta 0.3.4"}`
|
||||
if got := string(jsjson.MustMarshal(auth)); got != want {
|
||||
t.Errorf("auth frame:\n got %s\nwant %s", got, want)
|
||||
}
|
||||
|
||||
byID := map[float64]string{}
|
||||
for range 4 {
|
||||
r := <-results
|
||||
byID[r.Get2("id").(float64)] = string(jsjson.MustMarshal(r))
|
||||
}
|
||||
for id, want := range map[float64]string{
|
||||
1: `{"t":"res","id":1,"status":201,"data":{"got":{"name":"alice"},"q":"x=1"}}`,
|
||||
2: `{"t":"res","id":2,"status":400,"data":{"error":"Запрос не разрешён агентом"}}`,
|
||||
3: `{"t":"res","id":3,"status":200,"data":"ok"}`,
|
||||
4: `{"t":"res","id":4,"status":204,"data":""}`,
|
||||
} {
|
||||
if byID[id] != want {
|
||||
t.Errorf("res %v:\n got %s\nwant %s", id, byID[id], want)
|
||||
}
|
||||
}
|
||||
|
||||
// Секрет одноразовый: после ready он исчезает из памяти и из cli.env.
|
||||
if a.secret() != "" {
|
||||
t.Error("join secret still in memory")
|
||||
}
|
||||
if raw, _ := os.ReadFile(envFile); strings.Contains(string(raw), "JOIN_SECRET") || !strings.Contains(string(raw), "NODE_ID=7") {
|
||||
t.Errorf("cli.env after join: %q", raw)
|
||||
}
|
||||
}
|
||||
|
||||
func TestWrongPinSendsNothing(t *testing.T) {
|
||||
c := newCore(t, func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object) {
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "hello"}, {Key: "nonce", Val: "n"}})
|
||||
read()
|
||||
})
|
||||
a, _ := newAgent(t, c, "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", "http://127.0.0.1:1")
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||||
defer cancel()
|
||||
if a.connectOnce(ctx, nil) {
|
||||
t.Fatal("pin mismatch reported as auth failure")
|
||||
}
|
||||
select {
|
||||
case f := <-c.frames:
|
||||
t.Fatalf("agent sent %v to a core with a foreign certificate", f)
|
||||
default:
|
||||
}
|
||||
}
|
||||
|
||||
func TestAuthRejected(t *testing.T) {
|
||||
c := newCore(t, func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object) {
|
||||
send(ctx, ws, jsjson.Object{{Key: "t", Val: "hello"}, {Key: "nonce", Val: "n"}})
|
||||
read()
|
||||
ws.Close(4003, "unauthorized")
|
||||
})
|
||||
a, envFile := newAgent(t, c, c.pin(t), "http://127.0.0.1:1")
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||||
defer cancel()
|
||||
if !a.connectOnce(ctx, nil) {
|
||||
t.Fatal("4003 not reported as auth failure")
|
||||
}
|
||||
if raw, _ := os.ReadFile(envFile); !strings.Contains(string(raw), "JOIN_SECRET=s3cret") {
|
||||
t.Error("join secret dropped without a successful join")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNodeKeyPersists(t *testing.T) {
|
||||
file := filepath.Join(t.TempDir(), "node.key")
|
||||
k1, err := loadNodeKey(file, t.Logf)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
k2, _ := loadNodeKey(file, t.Logf)
|
||||
if !k1.Equal(k2) {
|
||||
t.Fatal("node key regenerated")
|
||||
}
|
||||
if st, _ := os.Stat(file); st.Mode().Perm() != 0o600 {
|
||||
t.Fatalf("node.key mode %v", st.Mode().Perm())
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user