浏览器免重登:HttpOnly cookie + 服务端 session 表 + 设备名持久化

- 新增 web_sessions 表(sqlc):refresh_token 以 AES-256-GCM 落盘,密钥取自
  CDROP_SESSION_SECRET(env、不在库内);cookie 仅存不透明随机串,表 id 存其
  SHA-256,故 DB 单独泄露既换不出可用 cookie、也解不出 token
- /auth/exchange 建 session 并下发 HttpOnly; Secure; SameSite=Lax; Path=/api/auth
  cookie,响应体不再回传 refresh_token
- /auth/refresh 改为 cookie 驱动(7 天滑动失活),同时即开机静默免重登;
  新增 /auth/logout(删 session + 清 cookie)、/auth/device(写设备名入 session)
- device_name 随 session 存,开机 refresh 带回前端,抗 iOS PWA 存储清除;
  setup / 改名时 syncWebDeviceName 推送服务端
- striped per-session 锁串行化同会话并发 refresh,防一次性 refresh_token 被
  花两次而把用户从所有 tab 登出
- 前端 store 移除 refreshToken 字段(长寿命凭据彻底不进 JS);main.tsx 首屏前
  bootstrapAuth 用 cookie 静默续期,命中直接进已登录态、避免登录页闪现
- config:prod 强制 CDROP_SESSION_SECRET,缺失拒启动
- 桌面端不受影响(自有 loopback flow + Go keyring,不碰这两个端点)
This commit is contained in:
2026-06-16 00:54:40 +08:00
parent 8f550adbb1
commit e51666c52e
20 changed files with 874 additions and 81 deletions
+1
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@@ -77,6 +77,7 @@ func main() {
go transfer.RunSweeper(ctx, transfers)
go relayMgr.RunReaper(ctx)
go jwtauth.RunDeviceSweeper(ctx, queries, time.Duration(cfg.DeviceTTLHours)*time.Hour)
go httpapi.RunWebSessionReaper(ctx, queries)
if cfg.ClipboardTTLSec > 0 {
go clipboard.RunSweeper(ctx, clip)
}
+15
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@@ -43,6 +43,13 @@ type Config struct {
HS256Secret string `koanf:"hs256_secret"`
// SessionSecret keys the AES-256-GCM encryption of browser refresh_tokens at
// rest in web_sessions (the "passwordless re-login" feature). Any-length
// high-entropy string; it's SHA-256'd into a 32-byte key. The key lives only
// here (container env), never in the DB file, so an exfiltrated SQLite file
// can't be decrypted. Required in prod — refuse to boot without it.
SessionSecret string `koanf:"session_secret"`
// Shortcut tokensiOS 快捷指令用的长效 HS256 token。TTLDays 是签发有效期
// (默认 365 天),MaxPerUser 是每用户未吊销且未过期的 token 上限(默认 10)。
// 需配 HS256Secret 才启用,否则签发端点返回 503。
@@ -127,6 +134,14 @@ func (c *Config) validate() error {
"CDROP_AUTH_MODE=prod requires CDROP_OIDC_AUDIENCE " +
"(comma-separated OAuth client_ids); refusing to start")
}
// SessionSecret keys at-rest encryption of browser refresh_tokens. Empty
// would either disable passwordless re-login or, worse, tempt a plaintext
// fallback; require it so the encryption path is always live in prod.
if c.SessionSecret == "" {
return errors.New(
"CDROP_AUTH_MODE=prod requires CDROP_SESSION_SECRET " +
"(keys web-session refresh_token encryption); refusing to start")
}
default:
return fmt.Errorf("CDROP_AUTH_MODE must be \"dev\" or \"prod\", got %q", c.AuthMode)
}
+15 -2
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@@ -24,9 +24,22 @@ func TestValidate_DevWithDevTokenOK(t *testing.T) {
}
func TestValidate_ProdOK(t *testing.T) {
c := &Config{AuthMode: "prod", OIDCAudience: "cdrop-web,cdrop-desktop"}
c := &Config{AuthMode: "prod", OIDCAudience: "cdrop-web,cdrop-desktop", SessionSecret: "s3cr3t"}
if err := c.validate(); err != nil {
t.Fatalf("prod mode with audience should pass; got %v", err)
t.Fatalf("prod mode with audience + session secret should pass; got %v", err)
}
}
func TestValidate_ProdRequiresSessionSecret(t *testing.T) {
// SessionSecret keys at-rest encryption of browser refresh_tokens; without it
// passwordless re-login can't run safely. Refuse to boot in prod.
c := &Config{AuthMode: "prod", OIDCAudience: "cdrop-web", SessionSecret: ""}
err := c.validate()
if err == nil {
t.Fatal("prod without CDROP_SESSION_SECRET must reject; got nil error")
}
if !strings.Contains(err.Error(), "CDROP_SESSION_SECRET") {
t.Errorf("error must mention CDROP_SESSION_SECRET; got %q", err.Error())
}
}
+1 -1
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@@ -19,7 +19,7 @@ func TestBootstrapCreatesAllTables(t *testing.T) {
t.Fatalf("bootstrap: %v", err)
}
want := []string{"clipboard_state", "devices", "shortcut_tokens", "transfer_sessions"}
want := []string{"clipboard_state", "devices", "shortcut_tokens", "transfer_sessions", "web_sessions"}
rows, err := d.Query("SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%' ORDER BY name")
if err != nil {
t.Fatalf("query tables: %v", err)
+18
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@@ -49,3 +49,21 @@ CREATE TABLE IF NOT EXISTS clipboard_state (
-- origin_ts 严格大于现存时被接受,故延迟/乱序到达的旧复制不会盖掉新的。
origin_ts INTEGER NOT NULL DEFAULT 0
);
-- web_sessions:浏览器端「免重登」。cookie 里只放不透明随机串,本表 id 存其
-- SHA-256,故 DB 单独泄露也换不出可用 cookierefresh_token 以 AES-256-GCM 落盘
-- (密钥在容器环境、不在库内)。仅浏览器使用——桌面端 refresh_token 由 Go keyring
-- 持有、走自有 loopback flow,绝不入此表。device_name 随会话存,使 PWA 存储被清后
-- 开机仍能恢复本机设备名。
CREATE TABLE IF NOT EXISTS web_sessions (
id TEXT PRIMARY KEY,
user_id TEXT NOT NULL,
refresh_token TEXT NOT NULL,
device_name TEXT NOT NULL DEFAULT '',
user_agent TEXT NOT NULL DEFAULT '',
created_at INTEGER NOT NULL,
last_used_at INTEGER NOT NULL,
expires_at INTEGER NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_web_sessions_expires ON web_sessions (expires_at);
+11
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@@ -47,3 +47,14 @@ type TransferSession struct {
FinishedAt *int64 `json:"finished_at"`
FailReason *string `json:"fail_reason"`
}
type WebSession struct {
ID string `json:"id"`
UserID string `json:"user_id"`
RefreshToken string `json:"refresh_token"`
DeviceName string `json:"device_name"`
UserAgent string `json:"user_agent"`
CreatedAt int64 `json:"created_at"`
LastUsedAt int64 `json:"last_used_at"`
ExpiresAt int64 `json:"expires_at"`
}
+32
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@@ -0,0 +1,32 @@
-- web_sessions: browser "passwordless re-login". The opaque cookie token is
-- never stored; id holds its SHA-256, so a DB leak yields no usable cookie.
-- refresh_token is AES-256-GCM ciphertext (key lives in the container env, not
-- the DB). 7-day sliding window: every refresh rotates the token and pushes
-- expires_at forward; idle sessions are reaped by DeleteExpiredWebSessions.
-- name: CreateWebSession :exec
INSERT INTO web_sessions (id, user_id, refresh_token, device_name, user_agent, created_at, last_used_at, expires_at)
VALUES (?, ?, ?, ?, ?, ?, ?, ?);
-- name: GetWebSession :one
SELECT id, user_id, refresh_token, device_name, user_agent, created_at, last_used_at, expires_at
FROM web_sessions
WHERE id = ?;
-- name: RotateWebSession :exec
UPDATE web_sessions
SET refresh_token = ?, last_used_at = ?, expires_at = ?
WHERE id = ?;
-- name: SetWebSessionDevice :exec
UPDATE web_sessions
SET device_name = ?
WHERE id = ?;
-- name: DeleteWebSession :exec
DELETE FROM web_sessions
WHERE id = ?;
-- name: DeleteExpiredWebSessions :execrows
DELETE FROM web_sessions
WHERE expires_at < ?;
+130
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@@ -0,0 +1,130 @@
// Code generated by sqlc. DO NOT EDIT.
// versions:
// sqlc v1.31.1
// source: web_sessions.sql
package db
import (
"context"
)
const createWebSession = `-- name: CreateWebSession :exec
INSERT INTO web_sessions (id, user_id, refresh_token, device_name, user_agent, created_at, last_used_at, expires_at)
VALUES (?, ?, ?, ?, ?, ?, ?, ?)
`
type CreateWebSessionParams struct {
ID string `json:"id"`
UserID string `json:"user_id"`
RefreshToken string `json:"refresh_token"`
DeviceName string `json:"device_name"`
UserAgent string `json:"user_agent"`
CreatedAt int64 `json:"created_at"`
LastUsedAt int64 `json:"last_used_at"`
ExpiresAt int64 `json:"expires_at"`
}
// web_sessions: browser "passwordless re-login". The opaque cookie token is
// never stored; id holds its SHA-256, so a DB leak yields no usable cookie.
// refresh_token is AES-256-GCM ciphertext (key lives in the container env, not
// the DB). 7-day sliding window: every refresh rotates the token and pushes
// expires_at forward; idle sessions are reaped by DeleteExpiredWebSessions.
func (q *Queries) CreateWebSession(ctx context.Context, arg CreateWebSessionParams) error {
_, err := q.db.ExecContext(ctx, createWebSession,
arg.ID,
arg.UserID,
arg.RefreshToken,
arg.DeviceName,
arg.UserAgent,
arg.CreatedAt,
arg.LastUsedAt,
arg.ExpiresAt,
)
return err
}
const deleteExpiredWebSessions = `-- name: DeleteExpiredWebSessions :execrows
DELETE FROM web_sessions
WHERE expires_at < ?
`
func (q *Queries) DeleteExpiredWebSessions(ctx context.Context, expiresAt int64) (int64, error) {
result, err := q.db.ExecContext(ctx, deleteExpiredWebSessions, expiresAt)
if err != nil {
return 0, err
}
return result.RowsAffected()
}
const deleteWebSession = `-- name: DeleteWebSession :exec
DELETE FROM web_sessions
WHERE id = ?
`
func (q *Queries) DeleteWebSession(ctx context.Context, id string) error {
_, err := q.db.ExecContext(ctx, deleteWebSession, id)
return err
}
const getWebSession = `-- name: GetWebSession :one
SELECT id, user_id, refresh_token, device_name, user_agent, created_at, last_used_at, expires_at
FROM web_sessions
WHERE id = ?
`
func (q *Queries) GetWebSession(ctx context.Context, id string) (WebSession, error) {
row := q.db.QueryRowContext(ctx, getWebSession, id)
var i WebSession
err := row.Scan(
&i.ID,
&i.UserID,
&i.RefreshToken,
&i.DeviceName,
&i.UserAgent,
&i.CreatedAt,
&i.LastUsedAt,
&i.ExpiresAt,
)
return i, err
}
const rotateWebSession = `-- name: RotateWebSession :exec
UPDATE web_sessions
SET refresh_token = ?, last_used_at = ?, expires_at = ?
WHERE id = ?
`
type RotateWebSessionParams struct {
RefreshToken string `json:"refresh_token"`
LastUsedAt int64 `json:"last_used_at"`
ExpiresAt int64 `json:"expires_at"`
ID string `json:"id"`
}
func (q *Queries) RotateWebSession(ctx context.Context, arg RotateWebSessionParams) error {
_, err := q.db.ExecContext(ctx, rotateWebSession,
arg.RefreshToken,
arg.LastUsedAt,
arg.ExpiresAt,
arg.ID,
)
return err
}
const setWebSessionDevice = `-- name: SetWebSessionDevice :exec
UPDATE web_sessions
SET device_name = ?
WHERE id = ?
`
type SetWebSessionDeviceParams struct {
DeviceName string `json:"device_name"`
ID string `json:"id"`
}
func (q *Queries) SetWebSessionDevice(ctx context.Context, arg SetWebSessionDeviceParams) error {
_, err := q.db.ExecContext(ctx, setWebSessionDevice, arg.DeviceName, arg.ID)
return err
}
+124 -17
View File
@@ -12,6 +12,8 @@ import (
"github.com/go-jose/go-jose/v4"
"github.com/go-jose/go-jose/v4/jwt"
"commilitia.net/cdrop/internal/db"
)
// PROJECT_BRIEF.md §2 keeps the browser path on standard OIDC PKCE. Backend
@@ -62,9 +64,11 @@ type userResp struct {
Avatar string `json:"avatar,omitempty"`
}
// exchangeResp deliberately omits refresh_token: the durable credential never
// reaches the browser. It's encrypted into the server-side web_sessions row and
// represented to the client only by the HttpOnly session cookie set alongside.
type exchangeResp struct {
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
ExpiresIn int `json:"expires_in"`
User userResp `json:"user"`
}
@@ -112,43 +116,113 @@ func (s *Server) handleAuthExchange(w http.ResponseWriter, r *http.Request) {
return
}
// Stash the refresh_token server-side and hand the browser an opaque,
// HttpOnly cookie instead. Guarded so a deploy without the encryption key (or
// an IdP that returned no refresh_token) still logs the user in — they just
// don't get passwordless re-login and re-auth on the next access-token expiry.
if len(s.sessionKey) > 0 && tr.RefreshToken != "" {
if err := s.createWebSession(r, w, user.ID, tr.RefreshToken); err != nil {
slog.Error("create web session failed", "err", err)
}
}
writeJSON(w, http.StatusOK, exchangeResp{
AccessToken: tr.AccessToken,
RefreshToken: tr.RefreshToken,
ExpiresIn: tr.ExpiresIn,
User: user,
})
}
type refreshReq struct {
RefreshToken string `json:"refresh_token"`
// createWebSession encrypts the refresh_token, persists a new session row, and
// sets the session cookie on the response.
func (s *Server) createWebSession(r *http.Request, w http.ResponseWriter, userID, refreshToken string) error {
raw, id, err := newSessionToken()
if err != nil {
return err
}
enc, err := s.encryptRefresh(refreshToken)
if err != nil {
return err
}
now := time.Now()
if err := s.queries.CreateWebSession(r.Context(), db.CreateWebSessionParams{
ID: id,
UserID: userID,
RefreshToken: enc,
DeviceName: "",
UserAgent: truncate(r.UserAgent(), 256),
CreatedAt: now.Unix(),
LastUsedAt: now.Unix(),
ExpiresAt: now.Add(webSessionTTL).Unix(),
}); err != nil {
return err
}
setSessionCookie(w, raw)
return nil
}
// refreshResp is what the browser sees: a fresh access_token plus the identity
// and device name recovered from the session. No refresh_token — it stays
// server-side. This same endpoint, called with the cookie and no body on app
// boot, IS the passwordless re-login path.
type refreshResp struct {
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
ExpiresIn int `json:"expires_in"`
User userResp `json:"user"`
DeviceName string `json:"device_name"`
}
func (s *Server) handleAuthRefresh(w http.ResponseWriter, r *http.Request) {
var req refreshReq
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid json"})
return
}
if req.RefreshToken == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "missing refresh_token"})
return
}
if s.cfg.OIDCTokenURL == "" {
writeJSON(w, http.StatusInternalServerError,
map[string]string{"error": "OIDC token URL not configured"})
return
}
if !s.sameOrigin(r) {
writeJSON(w, http.StatusForbidden, map[string]string{"error": "bad origin"})
return
}
c, err := r.Cookie(sessionCookieName)
if err != nil || c.Value == "" {
clearSessionCookie(w)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "no session"})
return
}
id := sessionID(c.Value)
// Serialise concurrent refreshes of this session, then read the row INSIDE the
// lock: a racing tab may already have rotated the refresh_token, and we must
// spend the current one, not a stale copy the IdP would reject.
unlock := s.lockRefresh(id)
defer unlock()
sess, err := s.queries.GetWebSession(r.Context(), id)
if err != nil {
// Unknown / deleted session → not authenticated. Clear the stale cookie.
clearSessionCookie(w)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "invalid session"})
return
}
now := time.Now()
if sess.ExpiresAt < now.Unix() {
_ = s.queries.DeleteWebSession(r.Context(), id)
clearSessionCookie(w)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "session expired"})
return
}
refreshToken, err := s.decryptRefresh(sess.RefreshToken)
if err != nil {
// Corrupt ciphertext or rotated key — the session is unusable, drop it.
_ = s.queries.DeleteWebSession(r.Context(), id)
clearSessionCookie(w)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "invalid session"})
return
}
form := url.Values{}
form.Set("grant_type", "refresh_token")
form.Set("refresh_token", req.RefreshToken)
form.Set("refresh_token", refreshToken)
form.Set("client_id", s.cfg.OIDCClientID)
if s.cfg.OIDCClientSecret != "" {
form.Set("client_secret", s.cfg.OIDCClientSecret)
@@ -156,14 +230,47 @@ func (s *Server) handleAuthRefresh(w http.ResponseWriter, r *http.Request) {
tr, err := postOIDCToken(r.Context(), s.cfg.OIDCTokenURL, form)
if err != nil {
// The IdP rejected the refresh_token (expired / revoked) — the session is
// dead end to end, so destroy it rather than leave a row that always 401s.
slog.Warn("oidc refresh failed", "err", err)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": err.Error()})
_ = s.queries.DeleteWebSession(r.Context(), id)
clearSessionCookie(w)
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "refresh rejected"})
return
}
user, err := extractUser(tr.IDToken, tr.AccessToken)
if err != nil {
writeJSON(w, http.StatusBadGateway,
map[string]string{"error": "extract user: " + err.Error()})
return
}
// Rotate: Casdoor issues a new refresh_token on each grant; fall back to the
// existing one if it didn't. Slide the window forward and re-arm the cookie.
newRefresh := tr.RefreshToken
if newRefresh == "" {
newRefresh = refreshToken
}
if enc, encErr := s.encryptRefresh(newRefresh); encErr == nil {
if err := s.queries.RotateWebSession(r.Context(), db.RotateWebSessionParams{
RefreshToken: enc,
LastUsedAt: now.Unix(),
ExpiresAt: now.Add(webSessionTTL).Unix(),
ID: id,
}); err != nil {
slog.Error("rotate web session failed", "err", err)
}
} else {
slog.Error("encrypt rotated refresh token failed", "err", encErr)
}
setSessionCookie(w, c.Value)
writeJSON(w, http.StatusOK, refreshResp{
AccessToken: tr.AccessToken,
RefreshToken: tr.RefreshToken,
ExpiresIn: tr.ExpiresIn,
User: user,
DeviceName: sess.DeviceName,
})
}
+22
View File
@@ -6,6 +6,7 @@ import (
"encoding/json"
"log/slog"
"net/http"
"sync"
"time"
"github.com/go-chi/chi/v5"
@@ -34,6 +35,19 @@ type Server struct {
calls *calls.Provider // optional; nil → STUN-only fallback
clipboard *clipboard.Service // optional; nil → 503 on /api/clipboard
mux *chi.Mux
// sessionKey encrypts browser refresh_tokens at rest (web_sessions); nil when
// CDROP_SESSION_SECRET is unset (dev), which disables passwordless re-login.
// siteOrigin is the deployment's scheme://host, used for the CSRF Origin check.
sessionKey []byte
siteOrigin string
// refreshLocks serialise concurrent refreshes of the same web session (all of
// a user's browser tabs share one cookie → one refresh_token). Striped so the
// lock set stays bounded; collisions just serialise unrelated sessions, which
// is harmless. Prevents a multi-tab race from spending a one-time-use
// refresh_token twice and logging the user out everywhere.
refreshLocks [refreshLockStripes]sync.Mutex
}
func New(
@@ -58,6 +72,9 @@ func New(
calls: cp,
clipboard: clip,
mux: chi.NewRouter(),
sessionKey: deriveSessionKey(cfg.SessionSecret),
siteOrigin: deriveSiteOrigin(cfg.OIDCRedirectURI),
}
s.routes()
return s
@@ -88,6 +105,11 @@ func (s *Server) routes() {
r.Use(httprate.LimitByIP(60, time.Minute))
r.Post("/auth/exchange", s.handleAuthExchange)
r.Post("/auth/refresh", s.handleAuthRefresh)
// Cookie-authenticated (no bearer): the HttpOnly session cookie is the
// only credential. logout drops the server session; device persists
// this browser's name into the session for PWA-eviction recovery.
r.Post("/auth/logout", s.handleAuthLogout)
r.Post("/auth/device", s.handleAuthDevice)
})
// Protected routes. gzip / compress is intentionally NOT mounted —
+260
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@@ -0,0 +1,260 @@
package httpapi
import (
"context"
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"crypto/sha256"
"encoding/base64"
"encoding/hex"
"encoding/json"
"errors"
"io"
"log/slog"
"net/http"
"net/url"
"time"
"commilitia.net/cdrop/internal/db"
"commilitia.net/cdrop/internal/jwtauth"
)
// Browser "passwordless re-login" (web only — desktop persists its own
// refresh_token in the OS keyring and never touches these endpoints).
//
// The durable credential (Casdoor's ~15 KB refresh_token) stays server-side in
// web_sessions, encrypted at rest. The browser only ever holds an opaque cookie
// token whose SHA-256 is the row's primary key — so a leaked DB yields neither a
// usable cookie nor a decryptable token. The cookie is HttpOnly (XSS can't read
// it), Secure (HTTPS only), SameSite=Lax + Origin-checked (CSRF), and Path-scoped
// to /api/auth so it rides only these four endpoints, not every API call.
const (
sessionCookieName = "cdrop_session"
sessionCookiePath = "/api/auth"
// webSessionTTL is the sliding inactivity window: each refresh pushes
// expires_at this far forward. The effective cap is min(this, the IdP's own
// refresh_token validity) — once Casdoor retires the refresh_token, refresh
// 401s and the user re-logs in regardless.
webSessionTTL = 7 * 24 * time.Hour
// refreshLockStripes bounds the per-session refresh lock set (see Server).
refreshLockStripes = 256
)
// lockRefresh serialises refreshes of one session id, returning the unlock fn.
// Callers must re-read the session row after acquiring it: a concurrent refresh
// may have already rotated the refresh_token.
func (s *Server) lockRefresh(id string) func() {
idx := stripeIndex(id)
s.refreshLocks[idx].Lock()
return func() { s.refreshLocks[idx].Unlock() }
}
// stripeIndex folds a session id into a stripe with FNV-1a — bounded, no cleanup.
func stripeIndex(id string) int {
var h uint32 = 2166136261
for i := 0; i < len(id); i++ {
h = (h ^ uint32(id[i])) * 16777619
}
return int(h % refreshLockStripes)
}
// deriveSessionKey turns a config secret of any length into a 32-byte AES key
// (mirrors jwtauth.DeriveHS256Key). Empty secret → nil (feature disabled).
func deriveSessionKey(secret string) []byte {
if secret == "" {
return nil
}
sum := sha256.Sum256([]byte(secret))
return sum[:]
}
// deriveSiteOrigin extracts scheme://host from the configured redirect_uri to
// give the CSRF Origin check a fixed expected value. Empty (dev) disables it.
func deriveSiteOrigin(redirectURI string) string {
if redirectURI == "" {
return ""
}
u, err := url.Parse(redirectURI)
if err != nil || u.Scheme == "" || u.Host == "" {
return ""
}
return u.Scheme + "://" + u.Host
}
// newSessionToken mints a fresh opaque cookie token plus its storage id. raw
// goes in Set-Cookie; id (hex SHA-256 of raw) is the DB key, so the stored row
// never contains a usable cookie value.
func newSessionToken() (raw, id string, err error) {
b := make([]byte, 32)
if _, err := rand.Read(b); err != nil {
return "", "", err
}
raw = base64.RawURLEncoding.EncodeToString(b)
return raw, sessionID(raw), nil
}
func sessionID(raw string) string {
sum := sha256.Sum256([]byte(raw))
return hex.EncodeToString(sum[:])
}
// encryptRefresh seals a refresh_token with AES-256-GCM. Output is
// base64(nonce || ciphertext+tag); the key is s.sessionKey (env-derived).
func (s *Server) encryptRefresh(plain string) (string, error) {
if len(s.sessionKey) == 0 {
return "", errors.New("session key not configured")
}
gcm, err := newGCM(s.sessionKey)
if err != nil {
return "", err
}
nonce := make([]byte, gcm.NonceSize())
if _, err := rand.Read(nonce); err != nil {
return "", err
}
ct := gcm.Seal(nonce, nonce, []byte(plain), nil)
return base64.StdEncoding.EncodeToString(ct), nil
}
func (s *Server) decryptRefresh(enc string) (string, error) {
if len(s.sessionKey) == 0 {
return "", errors.New("session key not configured")
}
raw, err := base64.StdEncoding.DecodeString(enc)
if err != nil {
return "", err
}
gcm, err := newGCM(s.sessionKey)
if err != nil {
return "", err
}
if len(raw) < gcm.NonceSize() {
return "", errors.New("ciphertext too short")
}
nonce, ct := raw[:gcm.NonceSize()], raw[gcm.NonceSize():]
plain, err := gcm.Open(nil, nonce, ct, nil)
if err != nil {
return "", err
}
return string(plain), nil
}
func newGCM(key []byte) (cipher.AEAD, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
return cipher.NewGCM(block)
}
func setSessionCookie(w http.ResponseWriter, raw string) {
http.SetCookie(w, &http.Cookie{
Name: sessionCookieName,
Value: raw,
Path: sessionCookiePath,
MaxAge: int(webSessionTTL / time.Second),
HttpOnly: true,
Secure: true,
SameSite: http.SameSiteLaxMode,
})
}
func clearSessionCookie(w http.ResponseWriter) {
http.SetCookie(w, &http.Cookie{
Name: sessionCookieName,
Value: "",
Path: sessionCookiePath,
MaxAge: -1,
HttpOnly: true,
Secure: true,
SameSite: http.SameSiteLaxMode,
})
}
// sameOrigin is belt-and-suspenders CSRF defence atop SameSite=Lax: when the
// browser sends an Origin header (always, on fetch POST) it must match the
// deployment's own origin. Absent Origin (non-browser clients) is allowed, as is
// an unconfigured site origin (dev).
func (s *Server) sameOrigin(r *http.Request) bool {
origin := r.Header.Get("Origin")
if origin == "" || s.siteOrigin == "" {
return true
}
return origin == s.siteOrigin
}
// handleAuthLogout destroys the server-side session and clears the cookie.
// Cookie-authenticated (no bearer): the cookie is the only thing that proves
// which session to drop.
func (s *Server) handleAuthLogout(w http.ResponseWriter, r *http.Request) {
if c, err := r.Cookie(sessionCookieName); err == nil && c.Value != "" {
if err := s.queries.DeleteWebSession(r.Context(), sessionID(c.Value)); err != nil {
slog.Warn("web session delete failed", "err", err)
}
}
clearSessionCookie(w)
w.WriteHeader(http.StatusNoContent)
}
type sessionDeviceReq struct {
DeviceName string `json:"device_name"`
}
// handleAuthDevice persists this browser's device name into its session row so
// it survives PWA storage eviction: on the next boot, /auth/refresh hands the
// name back and the client re-hydrates selfDeviceName without a trip to /setup.
func (s *Server) handleAuthDevice(w http.ResponseWriter, r *http.Request) {
if !s.sameOrigin(r) {
writeJSON(w, http.StatusForbidden, map[string]string{"error": "bad origin"})
return
}
c, err := r.Cookie(sessionCookieName)
if err != nil || c.Value == "" {
writeJSON(w, http.StatusUnauthorized, map[string]string{"error": "no session"})
return
}
var req sessionDeviceReq
if err := json.NewDecoder(io.LimitReader(r.Body, 4096)).Decode(&req); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid json"})
return
}
name := jwtauth.SanitizeDeviceName(req.DeviceName)
if name == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "empty device name"})
return
}
if err := s.queries.SetWebSessionDevice(r.Context(), db.SetWebSessionDeviceParams{
DeviceName: name,
ID: sessionID(c.Value),
}); err != nil {
slog.Error("set web session device failed", "err", err)
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": "persist failed"})
return
}
w.WriteHeader(http.StatusNoContent)
}
// RunWebSessionReaper periodically reclaims expired web_sessions rows. Lazy
// deletion on access covers the hot path; this sweeps sessions that simply go
// idle and are never touched again.
func RunWebSessionReaper(ctx context.Context, q *db.Queries) {
ticker := time.NewTicker(1 * time.Hour)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-ticker.C:
n, err := q.DeleteExpiredWebSessions(ctx, time.Now().Unix())
if err != nil {
slog.Warn("web session reaper failed", "err", err)
} else if n > 0 {
slog.Info("web sessions reaped", "count", n)
}
}
}
}
+123
View File
@@ -0,0 +1,123 @@
package httpapi
import (
"encoding/base64"
"strings"
"testing"
)
func TestEncryptRefreshRoundTrip(t *testing.T) {
s := &Server{sessionKey: deriveSessionKey("a-strong-session-secret")}
plain := strings.Repeat("refresh.token.", 2000) // ~28 KB, mimics Casdoor's large JWT
enc, err := s.encryptRefresh(plain)
if err != nil {
t.Fatalf("encrypt: %v", err)
}
if strings.Contains(enc, plain) {
t.Fatal("ciphertext leaks plaintext")
}
got, err := s.decryptRefresh(enc)
if err != nil {
t.Fatalf("decrypt: %v", err)
}
if got != plain {
t.Fatalf("roundtrip mismatch: len(got)=%d, len(want)=%d", len(got), len(plain))
}
}
func TestEncryptRefreshNonceIsRandom(t *testing.T) {
s := &Server{sessionKey: deriveSessionKey("secret")}
a, _ := s.encryptRefresh("same plaintext")
b, _ := s.encryptRefresh("same plaintext")
if a == b {
t.Fatal("two encryptions of the same plaintext are identical — nonce not random")
}
}
func TestDecryptRefreshRejectsTamper(t *testing.T) {
s := &Server{sessionKey: deriveSessionKey("secret")}
enc, err := s.encryptRefresh("token")
if err != nil {
t.Fatalf("encrypt: %v", err)
}
raw, err := base64.StdEncoding.DecodeString(enc)
if err != nil {
t.Fatalf("decode: %v", err)
}
raw[len(raw)-1] ^= 0xFF // flip a bit in the GCM tag
if _, err := s.decryptRefresh(base64.StdEncoding.EncodeToString(raw)); err == nil {
t.Fatal("tampered ciphertext must fail authentication")
}
}
func TestDecryptRefreshRejectsWrongKey(t *testing.T) {
enc, err := (&Server{sessionKey: deriveSessionKey("key-one")}).encryptRefresh("token")
if err != nil {
t.Fatalf("encrypt: %v", err)
}
if _, err := (&Server{sessionKey: deriveSessionKey("key-two")}).decryptRefresh(enc); err == nil {
t.Fatal("decryption under a different key must fail")
}
}
func TestEncryptRefreshNoKey(t *testing.T) {
s := &Server{sessionKey: nil}
if _, err := s.encryptRefresh("token"); err == nil {
t.Fatal("encrypt without a key must error")
}
}
func TestSessionIDDeterministicAndHashed(t *testing.T) {
raw, id, err := newSessionToken()
if err != nil {
t.Fatalf("newSessionToken: %v", err)
}
if id != sessionID(raw) {
t.Fatal("newSessionToken id must equal sessionID(raw)")
}
if id == raw || strings.Contains(id, raw) {
t.Fatal("stored id must be a hash of the cookie value, not the value itself")
}
// SHA-256 hex is always 64 chars.
if len(id) != 64 {
t.Fatalf("session id length: got %d, want 64", len(id))
}
}
func TestNewSessionTokenUnique(t *testing.T) {
seen := make(map[string]bool)
for i := 0; i < 1000; i++ {
raw, _, err := newSessionToken()
if err != nil {
t.Fatalf("newSessionToken: %v", err)
}
if seen[raw] {
t.Fatal("duplicate session token generated")
}
seen[raw] = true
}
}
func TestDeriveSessionKey(t *testing.T) {
if deriveSessionKey("") != nil {
t.Fatal("empty secret must yield a nil key (feature disabled)")
}
if got := len(deriveSessionKey("x")); got != 32 {
t.Fatalf("derived key length: got %d, want 32 (AES-256)", got)
}
}
func TestDeriveSiteOrigin(t *testing.T) {
cases := []struct{ in, want string }{
{"https://drop.example.net/oauth/callback", "https://drop.example.net"},
{"http://localhost:5173/oauth/callback", "http://localhost:5173"},
{"", ""},
{"not a url", ""},
}
for _, c := range cases {
if got := deriveSiteOrigin(c.in); got != c.want {
t.Errorf("deriveSiteOrigin(%q) = %q, want %q", c.in, got, c.want)
}
}
}
+3 -3
View File
@@ -64,7 +64,7 @@ func (a *Authenticator) Middleware(next http.Handler) http.Handler {
return
}
deviceName := sanitizeDeviceName(r.Header.Get("X-Device-Name"))
deviceName := SanitizeDeviceName(r.Header.Get("X-Device-Name"))
deviceType := normalizeDeviceType(r.Header.Get("X-Device-Type"))
if claims.Scoped() {
// The backend authoritatively knows a scoped token is the iOS
@@ -284,14 +284,14 @@ func DeriveHS256Key(secret string) []byte {
return sum[:]
}
// sanitizeDeviceName enforces the global ASCII-only device-name policy. Device
// SanitizeDeviceName enforces the global ASCII-only device-name policy. Device
// names ride in the X-Device-Name HTTP header, which can't carry non-ASCII
// reliably (and browser fetch rejects such header values outright), so the name
// is restricted to printable ASCII everywhere. Here we keep only printable ASCII
// (0x200x7E), trim, and cap the length as a server-side backstop; clients also
// validate the name up front for a clear error. Empty after sanitising → the
// caller falls back to a UA-derived default.
func sanitizeDeviceName(raw string) string {
func SanitizeDeviceName(raw string) string {
var b strings.Builder
for _, r := range raw {
if r >= 0x20 && r <= 0x7E {
+2 -2
View File
@@ -483,8 +483,8 @@ func TestSanitizeDeviceName(t *testing.T) {
{"Mac Book", "MacBook"}, // NBSP dropped
}
for _, c := range cases {
if got := sanitizeDeviceName(c.in); got != c.want {
t.Errorf("sanitizeDeviceName(%q) = %q, want %q", c.in, got, c.want)
if got := SanitizeDeviceName(c.in); got != c.want {
t.Errorf("SanitizeDeviceName(%q) = %q, want %q", c.in, got, c.want)
}
}
}
+71 -23
View File
@@ -34,6 +34,12 @@ export function logout()
// 即使紧随其后 clearAuth 也不会污染这次请求的 Authorization 头。失败忽略
// ——只是体验降级回宽限期路径,不影响登出本身。
void apiFetch("/api/me/disconnect", { method: "POST" }).catch(() => { /* ignore */ });
// 浏览器端:删除服务端 session 并清除 HttpOnly cookiecookie 自动随同源请求),
// 否则下次开机 bootstrapAuth 仍会静默免重登回来。桌面端无 cookie session,跳过。
if (!isDesktop() && useAppStore.getState().authMode === "prod")
{
void fetch("/api/auth/logout", { method: "POST" }).catch(() => { /* ignore */ });
}
useAppStore.getState().clearAuth();
// 桌面端:删除 Go 侧持久化 session 文件,否则下次启动仍会注入已登录态。
if (isDesktop()) { clearDesktopSession(); }
@@ -107,9 +113,10 @@ export async function loginProd(): Promise<void>
interface ExchangeResp
{
access_token: string;
refresh_token: string;
expires_in: number;
user: { id: string; name: string; avatar?: string };
// refresh_token 不再回传:服务端把它加密存进 web_sessions,浏览器只拿到一枚
// HttpOnly 的 session cookie(随 /api/auth/exchange 响应一并下发)。
}
// completeOAuthLogin runs on /oauth/callback after the provider redirects back.
@@ -156,20 +163,42 @@ export async function completeOAuthLogin(code: string, state: string): Promise<v
useAppStore.getState().setAuth({
accessToken: data.access_token,
refreshToken: data.refresh_token,
user: { id: data.user.id, name: data.user.name, avatar: data.user.avatar },
});
}
// refreshTokens proxies to /api/auth/refresh. Returns true on success.
// api.ts calls this lazily when a request comes back 401.
interface CookieRefreshResp
{
access_token: string;
expires_in: number;
user: { id: string; name: string; avatar?: string };
device_name?: string;
}
// cookieRefresh 用 HttpOnly session cookie 静默换一枚新 access_token。无 body——
// cookie 自动随同源请求发出(Path=/api/auth)。成功返回 {accessToken, user,
// deviceName}cookie 缺失 / 过期 / 被 IdP 拒绝 → null(调用方据此落到登录页)。
async function cookieRefresh(): Promise<{ accessToken: string; user: User; deviceName: string } | null>
{
const r = await fetch("/api/auth/refresh", { method: "POST" });
if (!r.ok) { return null; }
const data = await r.json().catch(() => null) as CookieRefreshResp | null;
if (!data?.access_token || !data.user?.id) { return null; }
return {
accessToken: data.access_token,
user: { id: data.user.id, name: data.user.name, avatar: data.user.avatar },
deviceName: data.device_name ?? "",
};
}
// refreshTokens 换新 access_tokenapi.ts 在请求拿到 401 时惰性调用。返回是否成功。
export async function refreshTokens(): Promise<boolean>
{
const store = useAppStore.getState();
if (store.authMode !== "prod") { return false; }
// 桌面端:refresh 完全在 Go 内部完成(refresh_token 只在 GoJS 不持有),
// 无需 store.refreshToken直接无参调用。
// 桌面端:refresh 完全在 Go 内部完成(refresh_token 只在 GoJS 不持有),
// 直接无参调用。
if (isDesktop())
{
const res = await desktopRefresh();
@@ -180,26 +209,45 @@ export async function refreshTokens(): Promise<boolean>
return true;
}
const refreshToken = store.refreshToken;
if (!refreshToken) { return false; }
// 浏览器端:走 HttpOnly cookie sessionrefresh_token 在服务端,JS 不持有)。
const res = await cookieRefresh();
if (!res) { return false; }
const cur = useAppStore.getState();
cur.setAuth({ accessToken: res.accessToken, user: res.user });
// 设备名以服务端为权威;本地缺失(PWA 存储被清)时回填。
if (res.deviceName && !cur.selfDeviceName) { cur.setSelfDeviceName(res.deviceName); }
return true;
}
const r = await fetch("/api/auth/refresh", {
// bootstrapAuth 在 App 挂载前尝试「免重登」:浏览器端若本会话尚无 access_token
// 用 HttpOnly cookie 静默续期,成功即直接进入已登录态(并回填服务端所记设备名),
// 失败则照常落到登录页。桌面端由注入式水合负责、dev 无 cookie 流程,均直接跳过。
export async function bootstrapAuth(): Promise<void>
{
if (isDesktop()) { return; }
const store = useAppStore.getState();
if (store.authMode !== "prod") { return; }
if (store.accessToken && store.user) { return; } // 同会话已登录(sessionStorage 命中)
const res = await cookieRefresh();
if (!res) { return; }
const cur = useAppStore.getState();
cur.setAuth({ accessToken: res.accessToken, user: res.user });
if (res.deviceName && !cur.selfDeviceName) { cur.setSelfDeviceName(res.deviceName); }
}
// syncWebDeviceName 把本机设备名推到服务端 session(cookie 鉴权),让 PWA 存储被清
// 后开机仍能从 cookie session 恢复设备名、不再误跳 /setup。仅浏览器 prod;桌面端走
// persistDesktopDeviceNameGo 持久化),dev 无 session。失败静默——只是体验降级。
export function syncWebDeviceName(name: string): void
{
if (isDesktop()) { return; }
if (useAppStore.getState().authMode !== "prod") { return; }
void fetch("/api/auth/device", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ refresh_token: refreshToken }),
});
if (!r.ok) { return false; }
const data = await r.json() as { access_token: string; refresh_token?: string };
if (!data.access_token) { return false; }
const cur = useAppStore.getState();
if (!cur.user) { return false; }
cur.setAuth({
accessToken: data.access_token,
refreshToken: data.refresh_token ?? refreshToken,
user: cur.user,
});
return true;
body: JSON.stringify({ device_name: name }),
}).catch(() => { /* ignore */ });
}
// ---- PKCE helpers ---------------------------------------------------------
+19 -6
View File
@@ -13,6 +13,7 @@ import { RouterProvider, createRouter } from "@tanstack/react-router";
import { ToastViewport } from "./ui/feedback";
import { routeTree } from "./routeTree.gen";
import { useAppStore, type ThemeMode } from "./store";
import { bootstrapAuth } from "./features/auth/auth";
import { startCjkAutospace } from "./utils/cjkAutospace";
import { initDesktopMenuBridge, isDesktop, loadDesktopSettings } from "./net/desktop";
@@ -115,16 +116,28 @@ function App()
// 时从注入的 window.__CDROP_BOOT__ 同步水合(store/helpers.ts),无需异步等待。
applyTheme(useAppStore.getState().theme);
ReactDOM.createRoot(document.getElementById("root")!).render(
function mount(): void
{
ReactDOM.createRoot(document.getElementById("root")!).render(
<React.StrictMode>
<App />
</React.StrictMode>,
);
);
// CJK 自动间距 shim:在 React 完成首次挂载后启动。MutationObserver 后续
// 增量处理 React 重渲染产生的新文本节点。放在 createRoot 之后,首帧绘制
// 完会触发一次 runShim() 处理已挂载的子树。
requestAnimationFrame(() => { startCjkAutospace(); });
}
// CJK 自动间距 shim:在 React 完成首次挂载后启动。MutationObserver 后续
// 增量处理 React 重渲染产生的新文本节点。放在 createRoot 之后,首帧绘制
// 完会触发一次 runShim() 处理已挂载的子树。
requestAnimationFrame(() => { startCjkAutospace(); });
// 浏览器端「免重登」:首屏渲染前用 HttpOnly cookie 尝试静默续期。命中则直接以已
// 登录态挂载,避免登录页 / 设置页闪现;未命中(401)即照常落到登录页。桌面 / dev /
// sessionStorage 已有令牌时 bootstrapAuth 立即返回,几乎无延迟。4s 超时兜底:万一
// refresh 卡死,也不至于把整个应用永久挡在首屏外。
const BOOT_AUTH_TIMEOUT_MS = 4000;
void Promise.race([
bootstrapAuth().catch(() => { /* ignore:失败即落登录页 */ }),
new Promise<void>((resolve) => { window.setTimeout(resolve, BOOT_AUTH_TIMEOUT_MS); }),
]).finally(mount);
// PWA service worker:仅在浏览器 + prod 注册。dev 下会干扰 Vite HMR;桌面壳
// Wails WebViewwails:// / loopback origin)已是原生应用且 SW 行为不可靠,
+2 -1
View File
@@ -9,7 +9,7 @@ import {
} from "@mantine/core";
import { createFileRoute, Link, redirect, useNavigate } from "@tanstack/react-router";
import { LogOut, Trash2 } from "lucide-react";
import { logout } from "../features/auth/auth";
import { logout, syncWebDeviceName } from "../features/auth/auth";
import { DesktopSettings } from "../features/desktop/DesktopSettings";
import { isDesktop, persistDesktopDeviceName } from "../net/desktop";
import { apiFetch } from "../net/api";
@@ -96,6 +96,7 @@ function SettingsPage()
}
setSelfDeviceName(trimmedName);
persistDesktopDeviceName(trimmedName); // 桌面:持久化到 Go 配置,跨重启存活
syncWebDeviceName(trimmedName); // 浏览器:持久化到服务端 session,抗 PWA 存储清除
toast.ok(t("settings.deviceName.success"));
}
catch (e)
+2
View File
@@ -2,6 +2,7 @@ import { createFileRoute, redirect, useNavigate } from "@tanstack/react-router";
import { Check, Monitor } from "lucide-react";
import { useState } from "react";
import { AuthShell } from "../features/auth/AuthShell";
import { syncWebDeviceName } from "../features/auth/auth";
import { persistDesktopDeviceName } from "../net/desktop";
import { useAppStore } from "../store";
import { t } from "../i18n";
@@ -37,6 +38,7 @@ function SetupPage()
}
setSelfDeviceName(trimmed);
persistDesktopDeviceName(trimmed); // 桌面:持久化到 Go 配置,跨重启存活
syncWebDeviceName(trimmed); // 浏览器:持久化到服务端 session,抗 PWA 存储清除
navigate({ to: "/" });
};
+6 -9
View File
@@ -9,21 +9,19 @@ import {
export type AuthSlice = Pick<
AppState,
"authMode" | "accessToken" | "refreshToken" | "user" | "setAuth" | "clearAuth"
"authMode" | "accessToken" | "user" | "setAuth" | "clearAuth"
>;
const initialAuthMode: AuthMode = import.meta.env.DEV ? "dev" : "prod";
// 跨重启的持久化由 Go 侧(session 文件 + 启动注入 window.__CDROP_BOOT__)负责
// 因为 wails:// scheme 下 WebView 存储不存活。sessionStorage 仅用于浏览器同 tab
// 刷新;桌面在单次运行内的连续性由内存中的 store 保证。
// refreshToken 在 JS 里恒为 null:浏览器只在内存持有(不落盘),桌面则完全不持有
// refresh 走 Go 内部,refresh_token 只在 Go 进程)——见凭据策略。
// 跨重启的持久化:桌面由 Go 侧(session 文件 + 启动注入 window.__CDROP_BOOT__)负责
// wails:// scheme 下 WebView 存储不存活);浏览器由服务端 HttpOnly session cookie
// 负责(开机 bootstrapAuth 静默续期,见 features/auth/auth.ts)。sessionStorage 仅
// 用于浏览器同 tab 刷新存活。refresh_token 永不进 JS——只在服务端 / Go 进程。
export const createAuthSlice: StateCreator<AppState, [], [], AuthSlice> = (set) =>
({
authMode: initialAuthMode,
accessToken: readSessionAccess(),
refreshToken: null,
user: readSessionUser(),
setAuth: (a) =>
@@ -35,7 +33,6 @@ export const createAuthSlice: StateCreator<AppState, [], [], AuthSlice> = (set)
}
set({
accessToken: a.accessToken,
refreshToken: a.refreshToken ?? null,
user: a.user,
});
},
@@ -47,6 +44,6 @@ export const createAuthSlice: StateCreator<AppState, [], [], AuthSlice> = (set)
window.sessionStorage.removeItem(ACCESS_TOKEN_KEY);
window.sessionStorage.removeItem(USER_KEY);
}
set({ accessToken: null, refreshToken: null, user: null });
set({ accessToken: null, user: null });
},
});
+4 -4
View File
@@ -2,8 +2,9 @@ import type { Locale } from "../i18n";
// Auth shape — see FRONTEND_DESIGN.md §6.
// access_token lives in sessionStorage so a tab refresh keeps the user logged in
// (PROJECT_BRIEF.md §2). refresh_token stays in the store only — never in storage —
// to keep XSS exposure as small as possible.
// (PROJECT_BRIEF.md §2). The refresh_token never touches JS at all: in the
// browser it lives server-side behind an HttpOnly session cookie (see
// features/auth/auth.ts), on desktop inside the Go process (OS keyring).
export interface User
{
id: string;
@@ -116,9 +117,8 @@ export interface AppState
// ---- auth slice ----
authMode: AuthMode;
accessToken: string | null;
refreshToken: string | null;
user: User | null;
setAuth: (a: { accessToken: string; refreshToken?: string; user: User }) => void;
setAuth: (a: { accessToken: string; user: User }) => void;
clearAuth: () => void;
// ---- device slice ----