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[client] Add SSO login flow timing instrumentation (#6717)

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Users reported long delays between finishing browser authentication and
the client connecting. Logs could not attribute the time: the PKCE and
device flows were silent between issuing the auth URL and returning the
token, and nothing recorded when the GUI issued the Up request after
WaitSSOLogin completed.

Add log lines covering the full chain: PKCE callback arrival and token
exchange duration, device-flow polling and approval timing, GUI-side
brackets around WaitSSOLogin and Up, daemon-side Up arrival and
WaitSSOLogin return, and a frontend stall detector that reports when
webview timers were suspended (macOS App Nap / hidden-window
throttling), which delays the WaitSSOLogin-to-Up handoff.
This commit is contained in:
Maycon Santos
2026-07-10 16:11:27 +02:00
committed by GitHub
parent e0c25ba4ba
commit 8e02154bf5
6 changed files with 60 additions and 1 deletions
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3
client/ui/frontend/src/app.tsx
View File

@@ -16,10 +16,13 @@ import LoginWaitingForBrowserDialog from "@/modules/login/LoginWaitingForBrowser
import { initI18n } from "@/lib/i18n";
import { initPlatform } from "@/lib/platform";
import { initLogForwarding } from "@/lib/logs";
import { initStallWatch } from "@/lib/stallwatch";
// Must run first so even init-time logs reach the Go log pipeline.
initLogForwarding();
initStallWatch();
welcome();
Promise.all([

31
client/ui/frontend/src/lib/stallwatch.ts Normal file
View File

@@ -0,0 +1,31 @@
// Detects webview suspension (macOS App Nap / hidden-window timer throttling).
// While the webview is suspended no JS runs at all, so detection happens on
// resume: a 1s interval measures wall-clock drift and reports how long timers
// were frozen. Silent unless a stall actually occurred; a stalled webview is
// what delays promise continuations such as the WaitSSOLogin → Up handoff.
const INTERVAL_MS = 1000;
const STALL_THRESHOLD_MS = 5000;
const REPORT_COOLDOWN_MS = 60_000;
let started = false;
export function initStallWatch() {
if (started) return;
started = true;
let last = Date.now();
let lastReport = 0;
setInterval(() => {
const now = Date.now();
const stall = now - last - INTERVAL_MS;
last = now;
if (stall < STALL_THRESHOLD_MS) return;
if (now - lastReport < REPORT_COOLDOWN_MS) return;
lastReport = now;
console.warn(
`webview timers were suspended for ${(stall / 1000).toFixed(1)}s ` +
`(App Nap / hidden-window throttling); pending UI work ran late`,
);
}, INTERVAL_MS);
}

4
client/ui/services/connection.go
View File

@@ -116,6 +116,7 @@ func (s *Connection) Login(ctx context.Context, p LoginParams) (LoginResult, err
if err != nil {
return LoginResult{}, s.classifyDaemonError(err)
}
log.Infof("daemon login response received, needs SSO login: %v", resp.GetNeedsSSOLogin())
return LoginResult{
NeedsSSOLogin: resp.GetNeedsSSOLogin(),
UserCode: resp.GetUserCode(),
@@ -129,6 +130,7 @@ func (s *Connection) WaitSSOLogin(ctx context.Context, p WaitSSOParams) (string,
if err != nil {
return "", err
}
log.Infof("waiting for SSO login to complete")
resp, err := cli.WaitSSOLogin(ctx, &proto.WaitSSOLoginRequest{
UserCode: p.UserCode,
Hostname: p.Hostname,
@@ -136,6 +138,7 @@ func (s *Connection) WaitSSOLogin(ctx context.Context, p WaitSSOParams) (string,
if err != nil {
return "", s.classifyDaemonError(err)
}
log.Infof("SSO login completed, daemon reported success")
return resp.GetEmail(), nil
}
@@ -144,6 +147,7 @@ func (s *Connection) Up(ctx context.Context, p UpParams) error {
if err != nil {
return err
}
log.Infof("sending up request to daemon")
// Always async: status updates flow via SubscribeStatus.
req := &proto.UpRequest{Async: true}
if p.ProfileName != "" {