Add email + OTP sign-in flow for cloud sync

Replace the "drop a session token in a file" workflow with a real
Chrome-style email login. The Cloudflare worker already had Better
Auth's `email-otp` plugin wired into `SEND_EMAIL`; this commit
builds the renderer-side counterpart.

Worker side:
- Move the OTP sender from `auth@elydora.com` to `browser@elydora.com`
  (wrangler.toml `allowed_sender_addresses` + better_auth.ts
  `EMAIL_OTP_FROM_ADDRESS`). Worker must be redeployed to pick this up.

Client side (`ely_sync_client::email_otp`):
- `send_email_otp(config, email)` POSTs `/api/auth/email-otp/send-verification-otp`
  with `{ email, type: "sign-in" }`.
- `verify_email_otp(config, email, otp)` POSTs `/api/auth/sign-in/email-otp`,
  reads the Better Auth session token from the JSON body's `token` field
  with the `Set-Cookie: better-auth.session_token=…` header as the
  documented fallback channel, and returns it as a `BearerToken`.

Shell side (`shell/auth.rs` + `shell/internal_pages/sync.rs`):
- New `AuthFlowPhase` (Idle / SendingCode / AwaitingOtp / Verifying /
  Error) tracks the in-flight form. Two off-thread workers run the
  HTTP exchanges so the GPUI render loop never blocks.
- Successful verify saves the bearer via `SyncEngine::install_bearer`
  and triggers an immediate snapshot upload, so the user is signed in
  + initial-synced in one click.
- Sync settings page replaces the bare "Sync now" button row with an
  account card: when SignedOut → email field + Send code → OTP field
  + Verify / Resend; when signed in → an account chip + Sign out.
- `trigger_cloud_sync_upload` no longer takes a `Context` param so
  the post-auth path can fire it from the inbox-drain pass without
  needing a window context.
This commit is contained in:
2026-05-15 21:32:50 -04:00
parent 80cff6dad3
commit 74b3de54ed
10 changed files with 734 additions and 38 deletions
+267
View File
@@ -0,0 +1,267 @@
//! Email + OTP sign-in flow plumbing for the shell.
//!
//! The HTTP work runs on a dedicated `ely-sync-auth` thread so the
//! GPUI render loop never blocks on the network — same invariant the
//! Servo IPC worker enforces. Results flow back to the shell through
//! `SyncStateUpdate` messages drained by `tick_external_web_surfaces`,
//! so the existing 8 ms tick is the single point that reconciles
//! background-task state with `BrowserCore`.
use std::sync::mpsc::Sender;
use ely_browser_core::SyncEngine;
use ely_sync_client::{ApiClientConfig, BearerToken, send_email_otp, verify_email_otp};
use gpui::Context;
use crate::services::servo_profile_data::{default_profile_data_root, profile_data_dir};
use super::{ElyShell, ShellState, SyncStateUpdate};
/// Where the user is in the email OTP form. Tracked on `ElyShell` so
/// the Sync settings page can pick the right widget cluster (only the
/// email row, OTP row + email row, signed-in account chip, etc.) on
/// every render without re-deriving it from disk.
#[derive(Clone, Debug, Default, Eq, PartialEq)]
pub(crate) enum AuthFlowPhase {
/// No sign-in attempt in progress. The form shows just the email
/// field and a "Send code" button.
#[default]
Idle,
/// `send_email_otp` is in flight. UI disables the form so the
/// user can't resend before the worker confirms acceptance.
SendingCode { email: String },
/// The worker accepted the request and Cloudflare's `SEND_EMAIL`
/// binding handed the message to the recipient's MTA. UI now
/// reveals the OTP field.
AwaitingOtp { email: String },
/// `verify_email_otp` is in flight. UI shows a transient
/// "Verifying…" state.
Verifying { email: String },
/// Last attempt failed. UI surfaces the message inline so the
/// user knows what to retry.
Error { email: String, message: String },
}
impl AuthFlowPhase {
pub(crate) fn email(&self) -> Option<&str> {
match self {
Self::Idle => None,
Self::SendingCode { email }
| Self::AwaitingOtp { email }
| Self::Verifying { email }
| Self::Error { email, .. } => Some(email),
}
}
pub(crate) fn error_message(&self) -> Option<&str> {
match self {
Self::Error { message, .. } => Some(message.as_str()),
_ => None,
}
}
pub(crate) fn is_busy(&self) -> bool {
matches!(self, Self::SendingCode { .. } | Self::Verifying { .. })
}
}
impl ElyShell {
/// Hand the typed email to the worker thread that calls
/// `send_email_otp`. The thread reports success / failure back
/// through the shared `SyncStateUpdate` channel, which the next
/// shell tick reconciles into the `auth_flow_phase`.
pub(crate) fn submit_email_otp_request(&mut self, cx: &mut Context<Self>) {
let email = self.read_auth_email_input(cx);
let Some(email) = normalize_email(&email) else {
self.auth_flow_phase = AuthFlowPhase::Error {
email: String::new(),
message: "Enter a valid email to receive a code.".to_string(),
};
return;
};
self.auth_flow_phase = AuthFlowPhase::SendingCode { email: email.clone() };
let tx = self.sync_inbox_tx.clone();
spawn_send_otp(email, tx);
}
/// Hand the typed OTP to the worker thread that calls
/// `verify_email_otp`, persists the bearer token, and triggers
/// the first snapshot upload on success.
pub(crate) fn submit_email_otp_verify(&mut self, cx: &mut Context<Self>) {
let email = match self.auth_flow_phase.clone() {
AuthFlowPhase::AwaitingOtp { email }
| AuthFlowPhase::Error { email, .. }
| AuthFlowPhase::Verifying { email } => email,
_ => return,
};
let otp = self.read_auth_otp_input(cx);
let normalized_otp = otp.trim().replace(['-', ' '], "");
if normalized_otp.is_empty() {
self.auth_flow_phase =
AuthFlowPhase::Error { email, message: "Enter the code you received.".to_string() };
return;
}
let active_profile_id = match active_profile_id_for(&self.state) {
Some(id) => id,
None => return,
};
let Some(profile_root) = default_profile_data_root() else {
self.auth_flow_phase = AuthFlowPhase::Error {
email,
message: "Profile data root is unavailable on this machine.".to_string(),
};
return;
};
let profile_dir = profile_data_dir(&profile_root, &active_profile_id);
self.auth_flow_phase = AuthFlowPhase::Verifying { email: email.clone() };
let tx = self.sync_inbox_tx.clone();
spawn_verify_otp(email, normalized_otp, profile_dir, tx);
}
/// Drop the persisted bearer token and reset the local form.
/// The bearer file is removed synchronously — there is no network
/// call to make, the token is the only artefact we own.
pub(crate) fn submit_sign_out(&mut self, _cx: &mut Context<Self>) {
self.auth_flow_phase = AuthFlowPhase::Idle;
let active_profile_id = match active_profile_id_for(&self.state) {
Some(id) => id,
None => return,
};
let Some(profile_root) = default_profile_data_root() else {
return;
};
let profile_dir = profile_data_dir(&profile_root, &active_profile_id);
match SyncEngine::for_profile_dir(&profile_dir, "ELY", super::sync_platform_label()) {
Ok(mut engine) => {
let _ = engine.install_bearer("");
}
Err(error) => {
tracing::warn!(target: "ely::sync", error = %error, "sign-out failed to load engine");
}
}
if let ShellState::Ready(core) = &mut self.state {
core.set_sync_connection_state(ely_domain::SyncConnectionState::SignedOut);
}
}
fn read_auth_email_input(&self, cx: &Context<Self>) -> String {
self.auth_email_input.read(cx).value().to_string()
}
fn read_auth_otp_input(&self, cx: &Context<Self>) -> String {
self.auth_otp_input.read(cx).value().to_string()
}
}
fn normalize_email(raw: &str) -> Option<String> {
let trimmed = raw.trim();
if !trimmed.contains('@') || trimmed.starts_with('@') || trimmed.ends_with('@') {
return None;
}
Some(trimmed.to_lowercase())
}
fn active_profile_id_for(state: &ShellState) -> Option<ely_domain::ProfileId> {
let ShellState::Ready(core) = state else {
return None;
};
core.snapshot().ok().map(|snapshot| snapshot.active_profile_id.clone())
}
fn spawn_send_otp(email: String, tx: Sender<SyncStateUpdate>) {
std::thread::Builder::new()
.name("ely-sync-auth-send".to_string())
.spawn(move || {
let config = ApiClientConfig::production();
match send_email_otp(&config, &email) {
Ok(()) => {
let _ = tx.send(SyncStateUpdate::AuthOtpSent { email });
}
Err(error) => {
let _ =
tx.send(SyncStateUpdate::AuthError { email, message: error.to_string() });
}
}
})
.map(|_| ())
.unwrap_or_else(|error| {
tracing::warn!(target: "ely::sync", error = %error, "spawn ely-sync-auth-send failed");
});
}
fn spawn_verify_otp(
email: String,
otp: String,
profile_dir: std::path::PathBuf,
tx: Sender<SyncStateUpdate>,
) {
std::thread::Builder::new()
.name("ely-sync-auth-verify".to_string())
.spawn(move || {
let config = ApiClientConfig::production();
let token: BearerToken = match verify_email_otp(&config, &email, &otp) {
Ok(token) => token,
Err(error) => {
let _ = tx.send(SyncStateUpdate::AuthError {
email,
message: error.to_string(),
});
return;
}
};
let mut engine =
match SyncEngine::for_profile_dir(&profile_dir, "ELY", super::sync_platform_label())
{
Ok(engine) => engine,
Err(error) => {
let _ = tx.send(SyncStateUpdate::AuthError {
email,
message: error.to_string(),
});
return;
}
};
if let Err(error) = engine.install_bearer(token.as_str()) {
let _ = tx.send(SyncStateUpdate::AuthError { email, message: error.to_string() });
return;
}
let _ = tx.send(SyncStateUpdate::AuthSucceeded { email });
})
.map(|_| ())
.unwrap_or_else(|error| {
tracing::warn!(target: "ely::sync", error = %error, "spawn ely-sync-auth-verify failed");
});
}
#[cfg(test)]
mod tests {
use super::{AuthFlowPhase, normalize_email};
#[test]
fn normalize_lowercases_and_trims() {
assert_eq!(normalize_email(" User@Example.COM "), Some("user@example.com".to_string()));
}
#[test]
fn normalize_rejects_obviously_broken() {
assert_eq!(normalize_email("noatsign"), None);
assert_eq!(normalize_email("@no-local-part"), None);
assert_eq!(normalize_email("missing-domain@"), None);
assert_eq!(normalize_email(""), None);
}
#[test]
fn auth_phase_helpers() {
let phase = AuthFlowPhase::Verifying { email: "you@there".to_string() };
assert_eq!(phase.email(), Some("you@there"));
assert!(phase.is_busy());
assert_eq!(phase.error_message(), None);
let phase = AuthFlowPhase::Error {
email: "you@there".to_string(),
message: "rate limited".to_string(),
};
assert_eq!(phase.error_message(), Some("rate limited"));
assert!(!phase.is_busy());
}
}