Files
email/sidecar/imap-sync.ts
T
Claude Opus 5 980a9d3c38 email, extracted from the officer platform
IMAP and Gmail sync into a per-account SQLite store, with the mail read and
composed in the browser.

moved whole from src/servers/sidecar/email (14 files), src/servers/api/email,
officer_db/src/email, and the Screens/Dashboard/Email tree. what changed on the
way out:

- credentials are encrypted. the column was plaintext jsonb holding an IMAP app
  password that the SMTP transport read straight out of the row; it is now
  AES-256-GCM under this plugin's own 'email' secret-store purpose, sealed and
  opened in queries.ts alone so nothing above it can hold ciphertext by
  accident. no plaintext fallback on read - a value that does not verify is an
  error.
- the router derives its prefix from mountPrefix() instead of the literal
  '/api/email', which was only correct for a first-party publisher.
- the frontend became panels.ts + layout.ts. the two panel appTypes that were
  null are now declared, because the platform screen used to override them by
  panel id and a plugin has no such hook.
- account management became a modal. it was a section in the platform's
  Settings, which a plugin cannot contribute to, and a panel does not work
  either: PluginScreen renders the workspace locked, so a panel outside the
  default layout is unreachable. it follows Compose, which had already solved
  this.
- 17 palette classes replaced with semantic tokens.

not verified: this has never run. it was switched off in the platform on
2026-08-13 and its table was never created, so nothing has exercised sync,
sending or the UI since. the first install is the first test.
2026-08-18 00:29:50 +00:00

428 lines
16 KiB
TypeScript

import { createHash } from 'node:crypto';
import { openEmailDb, upsertFromRawEml } from './store';
import { readSyncMeta, writeSyncMeta } from './sync-meta';
import { refreshGoogleAccessToken } from '@@/api/integrations/google-auth';
import { getUserIntegration, upsertUserIntegration, getServerIntegration, getDockPaths, setDockPaths } from 'officerdb';
import { getEmailAccount, updateEmailAccountStatus } from '../db/queries';
import type { SyncStep, SyncCtx } from './sync-runner';
// Thrown by the handlers for failures that a retry cannot fix (missing credentials, deleted account).
// The queue used it to skip retrying; here it is an ordinary error whose message reaches the sync state.
export class PermanentError extends Error {}
// ── Types for job meta (passed by the API server at enqueue time) ──
type EmailSyncMeta = {
emailAccountId: number;
userEmail: string;
account: {
id: number;
userId: number;
email: string;
imapHost: string;
imapPort: number;
imapSecure: boolean;
provider: string;
authType: string;
credentials: Record<string, unknown>;
};
imapAuth: { user: string; pass?: string; accessToken?: string };
saved?: number;
};
// ── Stable ID from Message-Id header ──
function messageIdToStableId(raw: string): string | null {
const match = raw.match(/^Message-Id:\s*<?([^>\s]+)>?/im);
if (!match?.[1]) return null;
return createHash('sha1').update(match[1]).digest('hex').slice(0, 16);
}
// ── IMAP folder → label mapping ──
const SPECIAL_USE_LABEL_MAP: Record<string, string> = {
'\\Inbox': 'inbox',
'\\Sent': 'sent',
'\\Drafts': 'draft',
'\\Flagged': 'starred',
'\\Trash': 'trash',
'\\Junk': 'spam',
'\\All': 'archive',
};
const SKIP_SPECIAL_USE = new Set(['\\Trash', '\\Junk', '\\All']);
type FolderInfo = {
specialUse?: string;
path: string;
flags: Set<string>;
status?: { uidNext?: number; uidValidity?: number };
};
function shouldSkipFolder(folder: FolderInfo): boolean {
if (folder.flags.has('\\Noselect') || folder.flags.has('\\NonExistent')) return true;
if (folder.specialUse && SKIP_SPECIAL_USE.has(folder.specialUse)) return true;
return false;
}
function folderToLabel(folder: FolderInfo): string {
if (folder.specialUse && SPECIAL_USE_LABEL_MAP[folder.specialUse]) {
return SPECIAL_USE_LABEL_MAP[folder.specialUse]!;
}
if (folder.path === 'INBOX') return 'inbox';
return folder.path.toLowerCase();
}
// ── OAuth token refresh ──
async function resolveImapAuth(meta: EmailSyncMeta): Promise<{ user: string; pass?: string; accessToken?: string }> {
if (meta.account.authType !== 'oauth') return meta.imapAuth;
// Refresh OAuth token if expired
const userGoogle = await getUserIntegration(meta.account.userId, 'google');
const config = userGoogle?.config as Record<string, unknown> | undefined;
if (!config?.refreshToken) {
throw new PermanentError('Google OAuth not configured — reconnect your Google account');
}
const expiresAt = config.expiresAt as number | undefined;
const tokenExpired = !expiresAt || expiresAt < Date.now() + 60_000;
if (!tokenExpired && config.accessToken) {
return { user: meta.account.email, accessToken: config.accessToken as string };
}
console.log('[email-sync] Refreshing OAuth token');
const refreshed = await refreshGoogleAccessToken(config.refreshToken as string);
const serverGoogle = await getServerIntegration('google');
await upsertUserIntegration({
userId: meta.account.userId,
provider: 'google',
serverIntegrationId: serverGoogle?.id,
config: { ...config, accessToken: refreshed.accessToken, expiresAt: refreshed.expiresAt },
});
return { user: meta.account.email, accessToken: refreshed.accessToken };
}
// ── Handler ──
const emailSyncHandler = {
type: 'email-sync',
retry: { delayMs: 15 * 60 * 1000, maxRetries: 5 },
steps: [
{
name: 'Sync emails',
run: async (ctx: SyncCtx) => {
const { ImapFlow } = await import('imapflow');
const meta = ctx.meta as unknown as EmailSyncMeta;
const { account, userEmail } = meta;
// Resolve auth (refreshes OAuth token if needed)
const imapAuth = await resolveImapAuth(meta);
// Always re-read the position rather than trusting job meta, which can be stale after a retry.
const freshAccount = await getEmailAccount(account.id);
if (!freshAccount) throw new PermanentError(`Email account ${account.id} not found`);
// Opened here rather than further down because the position now lives inside it. Postgres is
// passed only as the one-time backfill for accounts that predate the move — see sync-meta.ts.
const db = openEmailDb(userEmail, account.email);
const syncMeta: Record<string, unknown> = readSyncMeta(db, freshAccount.syncMeta as Record<string, unknown>);
const isIncremental = !!syncMeta.last_sync_at;
await updateEmailAccountStatus(account.id, 'syncing');
console.log(`[email-sync] ${isIncremental ? 'Incremental' : 'Initial'} sync for ${account.email}`);
const MAX_RECONNECTS = 10;
const RECONNECT_DELAY_MS = 5_000;
let reconnects = 0;
let saved = 0;
let skipped = 0;
let errors = 0;
let allDone = false;
// Load existing IDs for dedup (once, shared across reconnections)
const existingIds = new Set<string>();
const rows = db.query('SELECT id FROM emails').all() as Array<{ id: string }>;
for (const row of rows) existingIds.add(row.id);
try {
while (!allDone && reconnects <= MAX_RECONNECTS) {
if (reconnects > 0) {
console.log(
`[email-sync] Reconnecting (${reconnects}/${MAX_RECONNECTS}) after ${RECONNECT_DELAY_MS / 1000}s...`,
);
await ctx.updateProgress({
current: saved + skipped,
total: 0,
label: `Reconnecting (${reconnects}/${MAX_RECONNECTS})...`,
});
await new Promise((r) => setTimeout(r, RECONNECT_DELAY_MS));
// Re-read syncMeta from DB to get latest saved UIDs
const updated = await getEmailAccount(account.id);
if (updated?.syncMeta) {
Object.assign(syncMeta, updated.syncMeta as Record<string, unknown>);
}
} else {
await ctx.updateProgress({ current: 0, total: 0, label: 'Connecting...' });
}
const client = new ImapFlow({
host: account.imapHost,
port: account.imapPort,
secure: account.imapSecure,
auth: imapAuth,
logger: false,
socketTimeout: 30 * 60 * 1000,
});
const connState = { error: null as Error | null };
client.on('error', (err: Error) => {
console.log(`[email-sync] IMAP connection error: ${err.message}`);
connState.error = err;
});
try {
await client.connect();
console.log(`[email-sync] IMAP connected${reconnects > 0 ? ` (reconnect ${reconnects})` : ''}`);
const folders = (await client.list({
statusQuery: { uidNext: true, uidValidity: true },
})) as FolderInfo[];
// Filter to folders that still need syncing
const foldersToSync: Array<{ folder: FolderInfo; lastUid: number }> = [];
for (const folder of folders) {
if (shouldSkipFolder(folder)) continue;
const uidValidityKey = `imap_uidvalidity:${folder.path}`;
const lastUidKey = `imap_lastuid:${folder.path}`;
const storedUidValidity = syncMeta[uidValidityKey] as string | undefined;
const storedLastUid = syncMeta[lastUidKey] as string | undefined;
const uidValidity = folder.status?.uidValidity ? String(folder.status.uidValidity) : null;
const uidNext = folder.status?.uidNext ?? 0;
let lastUid =
storedUidValidity && uidValidity === storedUidValidity && storedLastUid
? parseInt(storedLastUid, 10)
: 0;
if (storedUidValidity && uidValidity && storedUidValidity !== uidValidity) {
console.log(`[email-sync] UIDVALIDITY changed for ${folder.path} — will re-scan`);
lastUid = 0;
}
if (lastUid > 0 && uidNext <= lastUid + 1) continue;
foldersToSync.push({ folder, lastUid });
}
if (foldersToSync.length === 0) {
console.log('[email-sync] All folders synced');
allDone = true;
await client.logout().catch(() => {});
break;
}
console.log(`[email-sync] ${foldersToSync.length} folder(s) to sync`);
let connectionLost = false;
for (let fi = 0; fi < foldersToSync.length; fi++) {
const { folder, lastUid } = foldersToSync[fi]!;
if (connState.error) {
connectionLost = true;
break;
}
console.log(`[email-sync] Syncing folder ${fi + 1}/${foldersToSync.length}: ${folder.path}`);
let lock;
try {
lock = await client.getMailboxLock(folder.path);
} catch (err) {
const errMsg = err instanceof Error ? err.message : String(err);
if (errMsg.includes('not available') || errMsg.includes('timeout') || errMsg.includes('closed')) {
console.log(`[email-sync] Connection lost at folder ${folder.path}`);
connectionLost = true;
break;
}
console.log(`[email-sync] Skipping folder ${folder.path}: ${errMsg}`);
continue;
}
try {
const mailbox = client.mailbox;
if (!mailbox) continue;
const uidValidity = String(mailbox.uidValidity);
const effectiveLastUid = syncMeta[`imap_uidvalidity:${folder.path}`] === uidValidity ? lastUid : 0;
let maxUid = effectiveLastUid;
const label = folderToLabel(folder);
const range = effectiveLastUid > 0 ? `${effectiveLastUid + 1}:*` : '1:*';
try {
const fetchOpts: Record<string, unknown> = { source: true, uid: true };
if (account.provider === 'gmail') fetchOpts.labels = true;
for await (const msg of client.fetch(range, fetchOpts, { uid: true })) {
if (msg.uid <= effectiveLastUid) continue;
maxUid = Math.max(maxUid, msg.uid);
if (!msg.source) {
errors++;
continue;
}
const raw = msg.source.toString('utf-8');
const id = messageIdToStableId(raw);
if (!id) {
errors++;
continue;
}
if (existingIds.has(id)) {
skipped++;
continue;
}
const labels = [label];
try {
upsertFromRawEml({
db,
id,
raw,
integration: account.provider,
emailAccount: account.email,
labels,
});
existingIds.add(id);
saved++;
} catch {
errors++;
}
if ((saved + skipped) % 50 === 0) {
const progressLabel = `${folder.path} — ${saved.toLocaleString()} saved, ${skipped.toLocaleString()} skipped`;
console.log(`[email-sync] ${progressLabel}`);
await ctx.updateProgress({ current: saved + skipped, total: 0, label: progressLabel });
if (maxUid > effectiveLastUid) {
syncMeta[`imap_lastuid:${folder.path}`] = String(maxUid);
writeSyncMeta(db, syncMeta);
}
}
}
} catch (fetchErr) {
const errMsg = fetchErr instanceof Error ? fetchErr.message : String(fetchErr);
if (errMsg.includes('Nothing to fetch')) {
// No messages in range — normal
} else if (
errMsg.includes('not available') ||
errMsg.includes('timeout') ||
errMsg.includes('closed')
) {
console.log(`[email-sync] Connection lost during fetch in ${folder.path}: ${errMsg}`);
connectionLost = true;
} else {
console.log(`[email-sync] Fetch error in ${folder.path}: ${errMsg}`);
errors++;
}
}
syncMeta[`imap_uidvalidity:${folder.path}`] = uidValidity;
if (maxUid > effectiveLastUid) {
syncMeta[`imap_lastuid:${folder.path}`] = String(maxUid);
}
console.log(`[email-sync] ${folder.path} done: ${saved} saved, ${skipped} skipped, ${errors} errors`);
await ctx.updateProgress({
current: saved + skipped,
total: 0,
label: `${folder.path}: ${saved} saved`,
});
writeSyncMeta(db, syncMeta);
} finally {
lock.release();
}
if (connectionLost) break;
}
await client.logout().catch(() => {});
if (connectionLost) {
console.log(`[email-sync] Connection lost after saving ${saved} emails — will reconnect`);
reconnects++;
continue;
}
allDone = true;
} catch (err) {
await client.logout().catch(() => {});
if (reconnects < MAX_RECONNECTS) {
console.log(`[email-sync] Error: ${err instanceof Error ? err.message : String(err)} — will reconnect`);
reconnects++;
continue;
}
throw err;
}
}
if (!allDone) {
throw new Error(`IMAP sync incomplete after ${MAX_RECONNECTS} reconnection attempts`);
}
// Mark sync complete. Last, and only after every message above is stored: if this never runs,
// the position stays behind and those messages are fetched again. Re-fetching is wasteful;
// advancing past mail that was never stored would lose it silently.
syncMeta.last_sync_at = new Date().toISOString();
writeSyncMeta(db, syncMeta);
} finally {
db.close();
}
console.log(
`[email-sync] Done: saved ${saved}, skipped ${skipped}, errors ${errors}, reconnects ${reconnects}`,
);
ctx.meta.saved = saved;
await ctx.updateProgress({ current: 1, total: 1, label: `Done — ${saved} new emails` });
},
},
{
name: 'Finalize',
run: async (ctx: SyncCtx) => {
const meta = ctx.meta as unknown as EmailSyncMeta;
const saved = meta.saved ?? 0;
await updateEmailAccountStatus(meta.account.id, 'synced');
if (saved > 0) {
try {
const paths = await getDockPaths(meta.account.userId);
if (!paths) {
const defaults = ['/', '/files', '/automation', '/dashboards', '/chat'];
await setDockPaths(meta.account.userId, [...defaults, '/email']);
} else if (!paths.includes('/email')) {
await setDockPaths(meta.account.userId, [...paths, '/email']);
}
} catch {
// Non-fatal
}
}
console.log(`[email-sync] ${meta.account.email} status set to synced`);
},
},
],
};
/** The handler's steps, for the sidecar's own runner. */
export const imapSyncSteps: SyncStep[] = emailSyncHandler.steps as SyncStep[];