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6x 13x 13x 12x 12x 12x 11x 1x 10x 10x 1x 9x 1x 8x 1x 7x 7x 1x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 1x 1x 6x 8x 8x 7x 7x 6x 1x 5x 5x 1x 4x 1x 3x 1x 2x 2x 2x 2x 1x 1x 6x 5x 5x 4x 4x 3x 1x 2x 2x 1x 1x 1x 1x 1x 1x 6x | /**
* User routes — identity-based profile CRUD, sign-in, provider linking.
*
* POST /api/users → Create new user (identity + uniqueId)
* POST /api/users/sign-in → Resolve identity, update firebaseUid
* GET /api/users/:uniqueId → Get user profile
* PATCH /api/users/:uniqueId → Update user profile fields
* POST /api/users/:uniqueId/link-provider → Link additional provider
* DELETE /api/users/:uniqueId/link-provider → Soft-remove (unlink) provider
* POST /api/users/:uniqueId/appeal → Submit suspension appeal
* POST /api/users/:uniqueId/lift-suspension→ Lift expired suspension
* POST /api/users/:uniqueId/follow → Follow a user
* POST /api/users/:uniqueId/unfollow → Unfollow a user
* POST /api/users/:uniqueId/remove-follower→ Remove a follower
* POST /api/users/:uniqueId/record-visit → Record profile visit (stalker)
* POST /api/users/:uniqueId/delete → Schedule account deletion (owner)
* POST /api/users/:uniqueId/cancel-delete → Cancel scheduled deletion (owner)
* GET /api/users/:uniqueId/deletion-status → Check deletion status (owner)
*/
const router = require('express').Router();
const bcrypt = require('bcrypt');
const { db, auth, FieldValue } = require('../utils/firebase');
const { generateId, now } = require('../utils/helpers');
const { getDoc } = require('../utils/firestore-helpers');
const log = require('../utils/log');
const { clearSuspensionCache, updateUniqueIdCache } = require('../middleware/auth');
const { sendEmail } = require('../utils/email');
const { buildDeletionScheduledEmail } = require('../utils/email-templates');
const { sendFcmToTokens } = require('../utils/fcm');
const VALID_PROVIDERS = ['google', 'apple', 'email'];
const MIN_UNIQUE_ID = 10000000;
const MAX_IDENTIFIERS_PER_PROVIDER = 5;
// ─── Helper: ownership check ────────────────────────────────────
function requireOwner(req, res) {
const paramId = Number(req.params.uniqueId);
if (req.auth.uniqueId !== paramId) {
res.status(403).json({ error: 'Cannot modify another user' });
return true; // blocked
}
return false;
}
// ═══════════════════════════════════════════════════════════════════
// POST /api/users — Create new user with identity map
// ═══════════════════════════════════════════════════════════════════
router.post('/users', async (req, res) => {
try {
const { provider, identifier, displayName, email, profilePhotoUrl, dateOfBirth, language } =
req.body || {};
if (!provider) return res.status(400).json({ error: 'provider required' });
if (!identifier) return res.status(400).json({ error: 'identifier required' });
if (!VALID_PROVIDERS.includes(provider)) {
return res
.status(400)
.json({ error: `Invalid provider. Must be one of: ${VALID_PROVIDERS.join(', ')}` });
}
// Server-side age validation — UK OSA + COPPA require minimum age 13
if (!dateOfBirth) {
return res.status(400).json({ error: 'Date of birth is required' });
}
const dob = new Date(dateOfBirth);
if (Number.isNaN(dob.getTime())) {
return res.status(400).json({ error: 'Invalid date of birth format' });
}
const ageDiff = Date.now() - dob.getTime();
const ageDate = new Date(ageDiff);
const age = Math.abs(ageDate.getUTCFullYear() - 1970);
Iif (age < 13) {
log.warn('users', 'Age validation rejected', { dateOfBirth });
return res.status(403).json({ error: 'Must be at least 13 years old' });
}
const identityDocId = `${provider}:${identifier}`;
const counterRef = db.doc('counters/uniqueId');
const identityRef = db.doc(`identityMap/${identityDocId}`);
const newUniqueId = await db.runTransaction(async (t) => {
// All reads first (Firestore transaction requirement)
const counterSnap = await t.get(counterRef);
const identitySnap = await t.get(identityRef);
// Check identity not already claimed
if (identitySnap.exists) {
const identityData = identitySnap.data();
if (identityData.unlinked) {
// Deleted accounts: allow clean re-registration, block suspended
Iif (identityData.deletedAccount && identityData.deletionStanding === 'clean') {
// Clean deletion — allow re-registration with new uniqueId
// The old identity map entry will be replaced below
} else {
throw Object.assign(new Error('Identity deactivated'), { code: 'DEACTIVATED' });
}
} else {
throw Object.assign(new Error('Identity already linked'), { code: 'ALREADY_LINKED' });
}
}
// Atomic counter increment
let current = counterSnap.exists ? counterSnap.data().value || 0 : 0;
if (current < MIN_UNIQUE_ID) current = MIN_UNIQUE_ID - 1;
const next = current + 1;
const timestamp = now();
// Write counter
t.set(counterRef, { value: next }, { merge: true });
// Write user doc
t.set(db.doc(`users/${next}`), {
uniqueId: next,
firebaseUid: req.auth.uid,
displayName: displayName || null,
email: email || null,
profilePhotoUrl: profilePhotoUrl || null,
dateOfBirth: dateOfBirth || null,
providers: [{ type: provider, identifier, active: true, linkedAt: timestamp }],
userType: 'MEMBER',
blockedUserIds: [],
followingIds: [],
followerIds: [],
fcmTokens: [],
aliases: {},
language: language || 'en',
stalkerCount: 0,
newStalkerCount: 0,
createdAt: timestamp,
lastSeenAt: timestamp,
});
// Write identity map entry
t.set(db.doc(`identityMap/${identityDocId}`), {
uniqueId: next,
provider,
identifier,
linkedAt: timestamp,
unlinked: false,
unlinkedAt: null,
});
return next;
});
// Set Firebase custom claims so Firestore security rules can use callerUniqueId()
await auth.setCustomUserClaims(req.auth.uid, { uniqueId: newUniqueId });
// Update uid → uniqueId cache so subsequent requests resolve instantly
updateUniqueIdCache(req.auth.uid, newUniqueId);
log.info('users', 'New user created', { uniqueId: newUniqueId, provider });
res.json({ success: true, created: true, uniqueId: newUniqueId });
} catch (err) {
if (err.code === 'ALREADY_LINKED') {
return res.status(409).json({ error: 'Identity already linked to an account' });
}
Eif (err.code === 'DEACTIVATED') {
return res
.status(409)
.json({ error: 'This identity has been deactivated. Contact support for assistance.' });
}
log.error('users', 'POST /users failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/sign-in — Identity resolution + firebaseUid update
// ═══════════════════════════════════════════════════════════════════
router.post('/users/sign-in', async (req, res) => {
try {
const { provider, identifier } = req.body || {};
if (!provider) return res.status(400).json({ error: 'provider required' });
if (!identifier) return res.status(400).json({ error: 'identifier required' });
const identityDocId = `${provider}:${identifier}`;
const identity = await getDoc(`identityMap/${identityDocId}`);
if (!identity) {
return res.json({ found: false });
}
if (identity.unlinked) {
return res.json({ found: false, deactivated: true });
}
const uniqueId = identity.uniqueId;
// Update firebaseUid to current project's UID + refresh lastSeenAt
await db.doc(`users/${uniqueId}`).update({
firebaseUid: req.auth.uid,
lastSeenAt: now(),
});
// Set Firebase custom claims so Firestore security rules can use callerUniqueId()
await auth.setCustomUserClaims(req.auth.uid, { uniqueId });
// Update caches
updateUniqueIdCache(req.auth.uid, uniqueId);
log.info('users', 'User signed in via identity', { uniqueId, provider });
res.json({ found: true, uniqueId });
} catch (err) {
log.error('users', 'POST /users/sign-in failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// GET /api/users/:uniqueId — Get user profile
// ═══════════════════════════════════════════════════════════════════
router.get('/users/:uniqueId', async (req, res) => {
try {
const user = await getDoc(`users/${req.params.uniqueId}`);
if (!user) return res.status(404).json({ error: 'User not found' });
user.blockedUserIds = user.blockedUserIds || [];
user.followingIds = user.followingIds || [];
user.followerIds = user.followerIds || [];
// Strip admin-only fields
delete user.gcsScore;
delete user.gcsLastDeductionAt;
delete user.gcsDisplayScore;
delete user.warningCount;
delete user.warningIssuedAt;
delete user.hasNewWarning;
// Strip sensitive / PII fields
delete user.pinHash;
delete user.fcmTokens;
delete user.firebaseUid;
delete user.email;
delete user.dateOfBirth;
// Strip deletion fields (only visible to owner via /deletion-status)
delete user.deletionScheduledAt;
delete user.deletionReason;
delete user.deletionExecuteAt;
if (Array.isArray(user.providers)) {
user.providers = user.providers.map(({ identifier: _identifier, ...rest }) => rest);
}
res.json(user);
} catch (err) {
log.error('users', 'GET /users/:uniqueId failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── Profile update validation ─────────────────────────────────
const PROFILE_STRING_FIELDS = [
'displayName',
'description',
'nationality',
'profilePhotoUrl',
'coverPhotoUrl',
'pmPrivacy',
'currentRoomId',
'lastRoomName',
'language',
];
const PROFILE_MAX_LENGTHS = {
displayName: 20,
description: 200,
nationality: 3,
language: 10,
lastRoomName: 50,
};
const PROFILE_BOOL_FIELDS = [
'pmNotificationsEnabled',
'pmSoundEnabled',
'pmShowTimestamps',
'pmShowDateSeparators',
'pmNotificationPreview',
'hideFollowing',
'hideOnlineStatus',
'hideAge',
'selfDestructAlertEnabled',
'dndEnabled',
];
const PROFILE_INT_FIELDS = [
'dndStartHour',
'dndStartMinute',
'dndEndHour',
'dndEndMinute',
'minGiftAnimationValue',
'acceptedLegalVersion',
];
/** Validate profile update field types and constraints. Returns error string or null. */
function validateProfileUpdates(updates) {
for (const key of PROFILE_STRING_FIELDS) {
Iif (key in updates && updates[key] !== null && typeof updates[key] !== 'string') {
return `${key} must be a string`;
}
Iif (
key in updates &&
typeof updates[key] === 'string' &&
PROFILE_MAX_LENGTHS[key] &&
updates[key].length > PROFILE_MAX_LENGTHS[key]
) {
return `${key} exceeds max length of ${PROFILE_MAX_LENGTHS[key]}`;
}
}
for (const key of PROFILE_BOOL_FIELDS) {
Iif (key in updates && typeof updates[key] !== 'boolean') return `${key} must be a boolean`;
}
for (const key of PROFILE_INT_FIELDS) {
Iif (key in updates && (typeof updates[key] !== 'number' || !Number.isInteger(updates[key])))
return `${key} must be an integer`;
}
for (const key of ['dndStartHour', 'dndEndHour']) {
Iif (key in updates && (updates[key] < 0 || updates[key] > 23))
return `${key} must be between 0 and 23`;
}
for (const key of ['dndStartMinute', 'dndEndMinute']) {
Iif (key in updates && (updates[key] < 0 || updates[key] > 59))
return `${key} must be between 0 and 59`;
}
return null;
}
// ═══════════════════════════════════════════════════════════════════
// PATCH /api/users/:uniqueId — Update user profile
// ═══════════════════════════════════════════════════════════════════
router.patch('/users/:uniqueId', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const body = req.body;
Iif (!body) return res.status(400).json({ error: 'Invalid JSON body' });
const allowedFields = [
'displayName',
'description',
'nationality',
'profilePhotoUrl',
'coverPhotoUrl',
'pmPrivacy',
'pmNotificationsEnabled',
'pmSoundEnabled',
'pmShowTimestamps',
'pmShowDateSeparators',
'pmNotificationPreview',
'hideFollowing',
'hideOnlineStatus',
'hideAge',
'selfDestructAlertEnabled',
'minGiftAnimationValue',
'dndEnabled',
'dndStartHour',
'dndStartMinute',
'dndEndHour',
'dndEndMinute',
'acceptedLegalVersion',
'currentRoomId',
'lastRoomName',
'language',
];
const updates = {};
for (const key of allowedFields) {
if (key in body) updates[key] = body[key];
}
if (Object.keys(updates).length === 0) {
return res.status(400).json({ error: 'No valid fields to update' });
}
// Validate field value types and lengths
const validationError = validateProfileUpdates(updates);
Iif (validationError) return res.status(400).json({ error: validationError });
// GDPR consent audit trail — store acceptance timestamp
Iif (updates.acceptedLegalVersion !== undefined) {
updates.legalAcceptedAt = Date.now();
}
log.info('users', 'Updating profile', {
uniqueId: req.params.uniqueId,
fields: Object.keys(updates),
});
await db.doc(`users/${req.params.uniqueId}`).update(updates);
res.json({ success: true });
} catch (err) {
log.error('users', 'PATCH /users/:uniqueId failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/link-provider — Link additional provider
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/link-provider', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const { provider, identifier } = req.body || {};
if (!provider) return res.status(400).json({ error: 'provider required' });
if (!identifier) return res.status(400).json({ error: 'identifier required' });
Iif (!VALID_PROVIDERS.includes(provider)) {
return res
.status(400)
.json({ error: `Invalid provider. Must be one of: ${VALID_PROVIDERS.join(', ')}` });
}
const uniqueId = Number(req.params.uniqueId);
const identityDocId = `${provider}:${identifier}`;
// Load user doc + identity map entry in parallel
const [user, existingIdentity] = await Promise.all([
getDoc(`users/${uniqueId}`),
getDoc(`identityMap/${identityDocId}`),
]);
Iif (!user) return res.status(404).json({ error: 'User not found' });
// Check if identity is already claimed
if (existingIdentity && existingIdentity.uniqueId !== uniqueId) {
return res.status(409).json({ error: 'This identity is already linked to another account' });
}
if (existingIdentity && existingIdentity.unlinked) {
// Re-linking own deactivated identity
const timestamp = now();
await db
.doc(`identityMap/${identityDocId}`)
.update({ unlinked: false, unlinkedAt: null, linkedAt: timestamp });
const providers = (user.providers || []).map((p) =>
p.type === provider && p.identifier === identifier
? { ...p, active: true, linkedAt: timestamp, unlinkedAt: undefined }
: p,
);
await db.doc(`users/${uniqueId}`).update({ providers });
log.info('users', 'Provider re-linked', {
uniqueId,
provider,
identifier: identifier.includes('@') ? `***@${identifier.split('@')[1]}` : '***',
});
return res.json({ success: true, relinked: true });
}
Iif (existingIdentity) {
// Already active — no-op
return res.json({ success: true, alreadyLinked: true });
}
// Check provider count limit
const existingOfType = (user.providers || []).filter((p) => p.type === provider && p.active);
if (existingOfType.length >= MAX_IDENTIFIERS_PER_PROVIDER) {
return res
.status(409)
.json({ error: 'Unable to link this account. Please contact support for assistance.' });
}
const timestamp = now();
// Create identity map entry
await db.doc(`identityMap/${identityDocId}`).set({
uniqueId,
provider,
identifier,
linkedAt: timestamp,
unlinked: false,
unlinkedAt: null,
});
// Update providers array
const providers = [
...(user.providers || []),
{ type: provider, identifier, active: true, linkedAt: timestamp },
];
await db.doc(`users/${uniqueId}`).update({ providers });
log.info('users', 'Provider linked', {
uniqueId,
provider,
identifier: identifier.includes('@') ? `***@${identifier.split('@')[1]}` : '***',
});
res.json({ success: true });
} catch (err) {
log.error('users', 'Link provider failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// DELETE /api/users/:uniqueId/link-provider — Soft-remove provider
// ═══════════════════════════════════════════════════════════════════
router.delete('/users/:uniqueId/link-provider', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const { provider, identifier } = req.body || {};
Iif (!provider) return res.status(400).json({ error: 'provider required' });
Iif (!identifier) return res.status(400).json({ error: 'identifier required' });
const uniqueId = Number(req.params.uniqueId);
const identityDocId = `${provider}:${identifier}`;
// Load user doc + identity map entry
const [user, identity] = await Promise.all([
getDoc(`users/${uniqueId}`),
getDoc(`identityMap/${identityDocId}`),
]);
Iif (!user) return res.status(404).json({ error: 'User not found' });
if (!identity) return res.status(404).json({ error: 'Identity not found' });
// Verify identity belongs to this user
if (identity.uniqueId !== uniqueId) {
return res.status(403).json({ error: 'Identity does not belong to this user' });
}
// Check at least 2 active providers remain
const activeProviders = (user.providers || []).filter((p) => p.active);
if (activeProviders.length < 2) {
return res.status(400).json({
error: 'Cannot unlink your only active provider. At least one provider must remain linked.',
});
}
const timestamp = now();
// Soft-remove identity map entry
await db.doc(`identityMap/${identityDocId}`).update({
unlinked: true,
unlinkedAt: timestamp,
});
// Update providers array — set active=false + unlinkedAt
const providers = (user.providers || []).map((p) =>
p.type === provider && p.identifier === identifier
? { ...p, active: false, unlinkedAt: timestamp }
: p,
);
await db.doc(`users/${uniqueId}`).update({ providers });
log.info('users', 'Provider unlinked', {
uniqueId,
provider,
identifier: identifier.includes('@') ? `***@${identifier.split('@')[1]}` : '***',
});
res.json({ success: true });
} catch (err) {
log.error('users', 'Unlink provider failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/appeal — Suspension appeal
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/appeal', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const body = req.body;
if (!body?.appealText) return res.status(400).json({ error: 'appealText required' });
if (typeof body.appealText !== 'string' || body.appealText.length > 500) {
return res
.status(400)
.json({ error: 'appealText must be a string of at most 500 characters' });
}
const uniqueId = req.params.uniqueId;
log.info('users', 'Suspension appeal submitted', { uniqueId });
await Promise.all([
db.doc(`suspensionAppeals/${generateId()}`).set(
{
uniqueId,
appealText: body.appealText,
status: 'pending',
createdAt: now(),
},
{ merge: true },
),
db.doc(`users/${uniqueId}`).update({
suspensionAppealStatus: 'pending',
}),
]);
res.json({ success: true });
} catch (err) {
log.error('users', 'Suspension appeal failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/lift-suspension — Lift expired suspension
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/lift-suspension', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const user = await getDoc(`users/${uniqueId}`);
const isSuspended = user?.isSuspended ?? user?.is_suspended ?? false;
if (!user || !isSuspended) {
return res.status(400).json({ error: 'User is not suspended' });
}
const suspensionEndDate = user.suspensionEndDate ?? user.suspension_end_date ?? null;
if (suspensionEndDate && suspensionEndDate > now()) {
return res.status(400).json({ error: 'Suspension has not expired yet' });
}
log.info('users', 'Lifting expired suspension', { uniqueId });
await db.doc(`users/${uniqueId}`).update({
isSuspended: false,
suspensionReason: null,
suspensionEndDate: null,
suspensionCanAppeal: true,
suspensionAppealStatus: null,
suspendedBy: null,
});
clearSuspensionCache(Number(uniqueId));
res.json({ success: true });
} catch (err) {
log.error('users', 'Lift suspension failed', {
uniqueId: req.params.uniqueId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/follow — Follow a user
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/follow', async (req, res) => {
try {
const body = req.body;
const targetId = body?.targetUserId;
Iif (!targetId) return res.status(400).json({ error: 'targetUserId required' });
if (requireOwner(req, res)) return;
Iif (String(req.params.uniqueId) === String(targetId))
return res.status(400).json({ error: 'Cannot follow yourself' });
const uniqueId = req.params.uniqueId;
const batch = db.batch();
batch.update(db.doc(`users/${uniqueId}`), {
followingIds: FieldValue.arrayUnion(Number(targetId)),
});
batch.update(db.doc(`users/${targetId}`), {
followerIds: FieldValue.arrayUnion(Number(uniqueId)),
});
await batch.commit();
log.info('users', 'User followed', { uniqueId, targetUserId: targetId });
res.json({ success: true });
} catch (err) {
log.error('users', 'Follow failed', {
uniqueId: req.params.uniqueId,
targetUserId: req.body?.targetUserId,
error: err.message,
});
res.status(500).json({ error: 'Failed to follow user' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/unfollow — Unfollow a user
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/unfollow', async (req, res) => {
try {
const body = req.body;
const targetId = body?.targetUserId;
if (!targetId) return res.status(400).json({ error: 'targetUserId required' });
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const batch = db.batch();
batch.update(db.doc(`users/${uniqueId}`), {
followingIds: FieldValue.arrayRemove(Number(targetId)),
});
batch.update(db.doc(`users/${targetId}`), {
followerIds: FieldValue.arrayRemove(Number(uniqueId)),
});
await batch.commit();
log.info('users', 'User unfollowed', { uniqueId, targetUserId: targetId });
res.json({ success: true });
} catch (err) {
log.error('users', 'Unfollow failed', {
uniqueId: req.params.uniqueId,
targetUserId: req.body?.targetUserId,
error: err.message,
});
res.status(500).json({ error: 'Failed to unfollow user' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/remove-follower — Remove a follower
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/remove-follower', async (req, res) => {
try {
const body = req.body;
const followerId = body?.followerUserId;
if (!followerId) return res.status(400).json({ error: 'followerUserId required' });
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const batch = db.batch();
batch.update(db.doc(`users/${uniqueId}`), {
followerIds: FieldValue.arrayRemove(Number(followerId)),
});
batch.update(db.doc(`users/${followerId}`), {
followingIds: FieldValue.arrayRemove(Number(uniqueId)),
});
await batch.commit();
log.info('users', 'Follower removed', { uniqueId, followerUserId: followerId });
res.json({ success: true });
} catch (err) {
log.error('users', 'Remove follower failed', {
uniqueId: req.params.uniqueId,
followerUserId: req.body?.followerUserId,
error: err.message,
});
res.status(500).json({ error: 'Failed to remove follower' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/record-visit — Record profile visit
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/record-visit', async (req, res) => {
try {
const body = req.body;
const visitorId = body?.visitorId;
if (!visitorId) return res.status(400).json({ error: 'visitorId required' });
// visitorId must match caller's uniqueId (string comparison since param is string)
if (String(req.auth.uniqueId) !== String(visitorId)) {
return res.status(403).json({ error: 'Forbidden' });
}
if (req.params.uniqueId === visitorId) return res.json({ success: true }); // don't stalk yourself
const profileUniqueId = req.params.uniqueId;
const stalkerPath = `users/${profileUniqueId}/stalkers/${visitorId}`;
const existing = await getDoc(stalkerPath);
const timestamp = now();
if (existing) {
const batch = db.batch();
batch.update(db.doc(stalkerPath), {
lastVisitedAt: timestamp,
visitCount: (existing.visitCount || 1) + 1,
});
batch.update(db.doc(`users/${profileUniqueId}`), {
newStalkerCount: FieldValue.increment(1),
});
await batch.commit();
} else {
const batch = db.batch();
batch.set(
db.doc(stalkerPath),
{
visitorId,
lastVisitedAt: timestamp,
firstVisitedAt: timestamp,
visitCount: 1,
},
{ merge: true },
);
batch.update(db.doc(`users/${profileUniqueId}`), {
stalkerCount: FieldValue.increment(1),
newStalkerCount: FieldValue.increment(1),
});
await batch.commit();
}
res.json({ success: true });
} catch (err) {
log.error('users', 'Record visit failed', {
profileUniqueId: req.params.uniqueId,
visitorId: req.body?.visitorId,
error: err.message,
});
res.status(500).json({ error: 'Internal server error' });
}
});
/** Send email and push notification for scheduled account deletion. */
async function sendDeletionNotifications(user, executeAt) {
const deleteDate = new Date(executeAt).toISOString().split('T')[0];
if (user.email) {
try {
const template = buildDeletionScheduledEmail(deleteDate);
await sendEmail(user.email, template.subject, template.html);
} catch (emailErr) {
log.error('users', 'Failed to send deletion email', { error: emailErr.message });
}
}
if (user.fcmTokens && user.fcmTokens.length > 0) {
try {
await sendFcmToTokens(user.fcmTokens, {
notification: {
title: 'Account Deletion Scheduled',
body: `Your account will be deleted on ${deleteDate}. Sign in to cancel.`,
},
});
} catch (fcmErr) {
log.error('users', 'Failed to send deletion push', { error: fcmErr.message });
}
}
}
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/delete — Schedule account deletion
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/delete', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const { pin } = req.body || {};
// Fetch user
const userSnap = await db.doc(`users/${uniqueId}`).get();
if (!userSnap.exists) {
return res.status(404).json({ error: 'User not found' });
}
const user = userSnap.data();
// Check if already scheduled
if (user.deletionScheduledAt) {
return res.status(409).json({ error: 'Deletion already scheduled' });
}
// Verify identity: PIN required
if (!pin) {
return res.status(400).json({ error: 'PIN verification required' });
}
if (!user.pinHash) {
return res.status(400).json({ error: 'No PIN set for this account' });
}
const isValid = await bcrypt.compare(pin, user.pinHash);
if (!isValid) {
return res.status(401).json({ error: 'Wrong PIN' });
}
// Get grace period from config
const configSnap = await db.doc('config/app').get();
const graceDays = configSnap.exists
? configSnap.data().accountDeletionGracePeriodDays || 30
: 30;
const timestamp = now();
const executeAt = timestamp + graceDays * 86400000;
// Set deletion fields + clear room
const updates = {
deletionScheduledAt: timestamp,
deletionReason: 'self',
deletionExecuteAt: executeAt,
currentRoomId: null,
};
await db.doc(`users/${uniqueId}`).update(updates);
// Revoke refresh tokens (sign out all devices)
try {
await auth.revokeRefreshTokens(user.firebaseUid);
} catch (revokeErr) {
log.error('users', 'Failed to revoke refresh tokens', { error: revokeErr.message });
}
// Send deletion notifications (best-effort)
await sendDeletionNotifications(user, executeAt);
// Audit log
await db.doc(`adminAuditLog/${generateId()}`).set({
action: 'ACCOUNT_DELETION_SCHEDULED',
targetUserId: uniqueId,
triggeredBy: 'self',
reason: 'self',
createdAt: timestamp,
});
log.info('users', 'Account deletion scheduled', { uniqueId, executeAt });
res.json({ success: true, deleteAt: executeAt });
} catch (err) {
log.error('users', 'Failed to schedule account deletion', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// POST /api/users/:uniqueId/cancel-delete — Cancel scheduled deletion
// ═══════════════════════════════════════════════════════════════════
router.post('/users/:uniqueId/cancel-delete', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const userSnap = await db.doc(`users/${uniqueId}`).get();
if (!userSnap.exists) {
return res.status(404).json({ error: 'User not found' });
}
const user = userSnap.data();
if (!user.deletionScheduledAt) {
return res.status(404).json({ error: 'No deletion scheduled' });
}
// Admin-initiated deletions cannot be cancelled by the user
if (user.deletionReason === 'admin') {
return res
.status(403)
.json({ error: 'Admin-initiated deletion cannot be cancelled by the user' });
}
// Check if deletion already executed
if (user.deletionExecuteAt && user.deletionExecuteAt <= now()) {
return res.status(410).json({ error: 'Deletion has already been executed' });
}
await db.doc(`users/${uniqueId}`).update({
deletionScheduledAt: null,
deletionReason: null,
deletionExecuteAt: null,
});
// Audit log
await db.doc(`adminAuditLog/${generateId()}`).set({
action: 'ACCOUNT_DELETION_CANCELLED',
targetUserId: uniqueId,
triggeredBy: 'self',
createdAt: now(),
});
log.info('users', 'Account deletion cancelled', { uniqueId });
res.json({ success: true });
} catch (err) {
log.error('users', 'Failed to cancel account deletion', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ═══════════════════════════════════════════════════════════════════
// GET /api/users/:uniqueId/deletion-status — Check deletion status
// ═══════════════════════════════════════════════════════════════════
router.get('/users/:uniqueId/deletion-status', async (req, res) => {
try {
if (requireOwner(req, res)) return;
const uniqueId = req.params.uniqueId;
const userSnap = await db.doc(`users/${uniqueId}`).get();
if (!userSnap.exists) {
return res.status(404).json({ error: 'User not found' });
}
const user = userSnap.data();
if (!user.deletionScheduledAt) {
return res.json({
scheduled: false,
scheduledAt: null,
executeAt: null,
reason: null,
daysRemaining: null,
});
}
const msRemaining = user.deletionExecuteAt - now();
const daysRemaining = Math.max(0, Math.ceil(msRemaining / 86400000));
res.json({
scheduled: true,
scheduledAt: user.deletionScheduledAt,
executeAt: user.deletionExecuteAt,
reason: user.deletionReason,
daysRemaining,
});
} catch (err) {
log.error('users', 'Failed to get deletion status', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
module.exports = router;
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