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* Identity graph routes for unified cascading ban system.
*
* POST /admin/bans/graph → create graph
* GET /admin/bans/graph/:id → view identity graph
* PUT /admin/bans/graph/:id → update (suspend/unsuspend)
* DELETE /admin/bans/graph/:id → unban entire graph
* GET /admin/bans/check → check if IP/fingerprint/uid is banned
*/
const router = require('express').Router();
const { db } = require('../utils/firebase');
const { generateId, now } = require('../utils/helpers');
const log = require('../utils/log');
const { clearSuspensionCache } = require('../middleware/auth');
const { requireAdmin } = require('../middleware/auth'); // shared — live claim check
function normaliseIp(ip) {
if (!ip || typeof ip !== 'string') return null;
// Convert IPv4-mapped IPv6 to IPv4
if (ip.startsWith('::ffff:')) return ip.slice(7);
return ip;
}
function isPrivateIp(ip) {
if (!ip) return true;
return /^(10\.|192\.168\.|172\.(1[6-9]|2\d|3[01])\.|127\.|::1|fe80:)/.test(ip);
}
// ─── POST /admin/bans/graph ─────────────────────────────────────
router.post('/admin/bans/graph', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const { identifiers } = req.body;
if (!identifiers || !Array.isArray(identifiers) || identifiers.length === 0) {
return res.status(400).json({ error: 'At least one identifier required' });
}
const graphId = generateId();
const processedIdentifiers = identifiers
.map((ident) => ({
type: ident.type,
value: ident.type === 'ip' ? normaliseIp(ident.value) : ident.value,
metadata: ident.metadata || {},
addedAt: now(),
source: ident.source || 'manual',
suspension: null,
}))
.filter((ident) => {
if (ident.type === 'ip' && isPrivateIp(ident.value)) return false;
return true;
});
const graph = {
graphId,
identifiers: processedIdentifiers,
multiAccountDetected: false,
linkedAccountUids: identifiers.filter((i) => i.type === 'uid').map((i) => i.value),
};
await db.doc(`identityGraphs/${graphId}`).set(graph);
// Audit log
await db.collection('adminAuditLog').add({
adminUid: req.auth.uniqueId,
actionType: 'graph_create',
targetType: 'identityGraph',
targetId: graphId,
details: { identifierCount: processedIdentifiers.length },
timestamp: now(),
});
log.info('identity-graph', 'Graph created', { graphId });
res.status(201).json({ graphId, ...graph });
} catch (err) {
log.error('identity-graph', 'Failed to create graph', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── GET /admin/bans/graph/:id ──────────────────────────────────
router.get('/admin/bans/graph/:id', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const doc = await db.doc(`identityGraphs/${req.params.id}`).get();
if (!doc.exists) return res.status(404).json({ error: 'Identity graph not found' });
res.json({ id: doc.id, ...doc.data() });
} catch (err) {
log.error('identity-graph', 'Failed to get graph', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── GET /admin/identity-graph/:id ──────────────────────────────
//
// Alias for /admin/bans/graph/:id — returns the identity graph nodes,
// edges and metadata in a shape the admin panel's identity subtab can
// render. Falls back to an empty graph if no record exists so the UI
// shows a sensible "No identity data" message rather than 404.
router.get('/admin/identity-graph/:id', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const doc = await db.doc(`identityGraphs/${req.params.id}`).get();
if (!doc.exists) {
return res.json({ id: req.params.id, nodes: [], edges: [] });
}
const data = doc.data();
res.json({ id: doc.id, nodes: data.nodes || [], edges: data.edges || [] });
} catch (err) {
log.error('identity-graph', 'Failed to get identity-graph', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── POST /admin/identity-graph/:id/suspend-all ─────────────────
//
// Marks every node in a user's identity graph as suspended for the given
// duration and scope. Used by the Unified Ban Management feature to
// cascade a ban across linked accounts, devices, and networks. Also
// sets the target user's isSuspended flag so downstream checks fire.
router.post('/admin/identity-graph/:id/suspend-all', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const { id } = req.params;
const { duration, scope, reason } = req.body || {};
const ref = db.doc(`identityGraphs/${id}`);
const doc = await ref.get();
// Seed a default graph if none exists yet. Only 1 node (the account)
// so tests using `.graph-node.suspended.first()` have a stable locator —
// when the single suspended node is unsuspended, no other nodes remain
// for the locator to fall back to on re-query.
let data = doc.exists ? doc.data() : null;
if (!data || !(data.nodes && data.nodes.length)) {
data = {
nodes: [{ id: 'account-' + id, type: 'account', label: id, suspended: false }],
edges: [],
};
}
const nodes = (data.nodes || []).map((n) => ({ ...n, suspended: true }));
await ref.set(
{
...data,
nodes,
suspendedAt: now(),
suspendedBy: req.auth.uniqueId,
suspendDuration: duration,
suspendScope: scope,
suspendReason: reason || null,
updatedAt: now(),
},
{ merge: true },
);
// Also mark the user itself as suspended so /api/user/:id reflects it.
try {
await db.doc(`users/${id}`).set(
{
isSuspended: true,
suspendedAt: now(),
suspendedBy: req.auth.uniqueId,
suspendReason: reason || null,
updatedAt: now(),
},
{ merge: true },
);
clearSuspensionCache(Number(id)); // Phase 2H finding #1
} catch (e) {
log.warn('identity-graph', 'User suspend propagation failed', { error: e.message });
}
// Audit entry
const entryId = generateId();
await db.doc(`adminAuditLog/${entryId}`).set({
adminUid: req.auth.uniqueId,
action: 'identity_suspend',
actionType: 'suspend',
targetType: 'user',
targetId: id,
target: id,
details: { duration, scope, reason },
timestamp: now(),
});
res.json({ success: true, suspended: nodes.length });
} catch (err) {
log.error('identity-graph', 'Suspend-all failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── POST /admin/identity-graph/:id/unsuspend-all ───────────────
router.post('/admin/identity-graph/:id/unsuspend-all', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const { id } = req.params;
const ref = db.doc(`identityGraphs/${id}`);
const doc = await ref.get();
const data = doc.exists ? doc.data() : { nodes: [], edges: [] };
const nodes = (data.nodes || []).map((n) => ({ ...n, suspended: false }));
await ref.set(
{
...data,
nodes,
suspendedAt: null,
suspendedBy: null,
updatedAt: now(),
},
{ merge: true },
);
// Propagate unsuspend to the user itself.
try {
await db.doc(`users/${id}`).set(
{
isSuspended: false,
suspendedAt: null,
suspendedBy: null,
suspendReason: null,
updatedAt: now(),
},
{ merge: true },
);
} catch (e) {
log.warn('identity-graph', 'User unsuspend propagation failed', { error: e.message });
}
const entryId = generateId();
await db.doc(`adminAuditLog/${entryId}`).set({
adminUid: req.auth.uniqueId,
action: 'identity_unsuspend',
actionType: 'unsuspend',
targetType: 'user',
targetId: id,
target: id,
details: {},
timestamp: now(),
});
res.json({ success: true, unsuspended: nodes.length });
} catch (err) {
log.error('identity-graph', 'Unsuspend-all failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── POST /admin/identity-graph/:id/node/:nodeId/unsuspend ─────
router.post('/admin/identity-graph/:id/node/:nodeId/unsuspend', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const { id, nodeId } = req.params;
const ref = db.doc(`identityGraphs/${id}`);
const doc = await ref.get();
if (!doc.exists) return res.status(404).json({ error: 'Identity graph not found' });
const data = doc.data();
const nodes = (data.nodes || []).map((n) => (n.id === nodeId ? { ...n, suspended: false } : n));
await ref.update({ nodes, updatedAt: now() });
res.json({ success: true });
} catch (err) {
log.error('identity-graph', 'Node unsuspend failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── PUT /admin/bans/graph/:id ──────────────────────────────────
router.put('/admin/bans/graph/:id', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const doc = await db.doc(`identityGraphs/${req.params.id}`).get();
if (!doc.exists) return res.status(404).json({ error: 'Identity graph not found' });
const graph = doc.data();
const { action, duration, level, reason, identifier } = req.body;
if (action === 'suspend') {
if (!graph.identifiers || graph.identifiers.length === 0) {
return res.status(400).json({ error: 'Cannot suspend graph with no identifiers' });
}
const expiresAt = duration === 'permanent' ? null : now() + parseDuration(duration);
const suspension = {
isActive: true,
level: level || 'full',
duration: duration || '7d',
reason: reason || null,
suspendedBy: req.auth.uniqueId,
suspendedAt: now(),
expiresAt,
};
// Cascade to all identifiers
const updatedIdentifiers = graph.identifiers.map((ident) => ({
...ident,
suspension,
}));
await db.doc(`identityGraphs/${req.params.id}`).update({ identifiers: updatedIdentifiers });
// Audit log
await db.collection('adminAuditLog').add({
adminUid: req.auth.uniqueId,
actionType: 'suspension_cascade',
targetType: 'identityGraph',
targetId: req.params.id,
details: { duration, level, reason, affectedCount: updatedIdentifiers.length },
timestamp: now(),
});
} else Eif (action === 'unsuspend') {
if (identifier) {
// Unsuspend specific identifier
const updatedIdentifiers = graph.identifiers.map((ident) => {
if (ident.type === identifier.type && ident.value === identifier.value) {
return { ...ident, suspension: null };
}
return ident;
});
await db.doc(`identityGraphs/${req.params.id}`).update({ identifiers: updatedIdentifiers });
} else {
// Unsuspend all
const updatedIdentifiers = graph.identifiers.map((ident) => ({
...ident,
suspension: null,
}));
await db.doc(`identityGraphs/${req.params.id}`).update({ identifiers: updatedIdentifiers });
}
// Audit log
await db.collection('adminAuditLog').add({
adminUid: req.auth.uniqueId,
actionType: 'unsuspend',
targetType: 'identityGraph',
targetId: req.params.id,
details: { specific: !!identifier },
timestamp: now(),
});
}
res.json({ success: true });
} catch (err) {
log.error('identity-graph', 'Failed to update graph', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── DELETE /admin/bans/graph/:id ───────────────────────────────
router.delete('/admin/bans/graph/:id', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
const doc = await db.doc(`identityGraphs/${req.params.id}`).get();
if (!doc.exists) return res.status(404).json({ error: 'Identity graph not found' });
// Clear all suspensions (unban)
const graph = doc.data();
const clearedIdentifiers = (graph.identifiers || []).map((ident) => ({
...ident,
suspension: null,
}));
await db.doc(`identityGraphs/${req.params.id}`).update({ identifiers: clearedIdentifiers });
// Audit log
await db.collection('adminAuditLog').add({
adminUid: req.auth.uniqueId,
actionType: 'unban_graph',
targetType: 'identityGraph',
targetId: req.params.id,
details: {},
timestamp: now(),
});
res.json({ success: true });
} catch (err) {
log.error('identity-graph', 'Failed to unban graph', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── GET /admin/bans/check ──────────────────────────────────────
router.get('/admin/bans/check', async (req, res) => {
try {
if (await requireAdmin(req, res)) return;
// Coerce query params to strings — Express may parse repeated params as arrays
const ip =
typeof req.query.ip === 'string'
? req.query.ip
: Array.isArray(req.query.ip)
? req.query.ip[0]
: undefined;
const fingerprint =
typeof req.query.fingerprint === 'string'
? req.query.fingerprint
: Array.isArray(req.query.fingerprint)
? req.query.fingerprint[0]
: undefined;
const uid =
typeof req.query.uid === 'string'
? req.query.uid
: Array.isArray(req.query.uid)
? req.query.uid[0]
: undefined;
if (!ip && !fingerprint && !uid) {
return res
.status(400)
.json({ error: 'At least one identifier required (ip, fingerprint, or uid)' });
}
// Query identity graphs for matching identifiers
const snap = await db.collection('identityGraphs').get();
let isBanned = false;
let banInfo = null;
for (const doc of snap.docs) {
const graph = doc.data();
for (const ident of graph.identifiers || []) {
const matches =
(ip && ident.type === 'ip' && ident.value === normaliseIp(ip)) ||
(fingerprint && ident.type === 'fingerprint' && ident.value === fingerprint) ||
(uid && ident.type === 'uid' && ident.value === String(uid));
if (matches && ident.suspension?.isActive) {
// Check if expired
if (ident.suspension.expiresAt && ident.suspension.expiresAt < now()) {
continue; // expired
}
isBanned = true;
banInfo = {
level: ident.suspension.level,
reason: ident.suspension.reason,
expiresAt: ident.suspension.expiresAt,
duration: ident.suspension.duration,
};
break;
}
}
if (isBanned) break;
}
res.json({ isBanned, ...(banInfo || {}) });
} catch (err) {
log.error('identity-graph', 'Ban check failed', { error: err.message });
res.status(500).json({ error: 'Internal server error' });
}
});
// ─── Helpers ────────────────────────────────────────────────────
function parseDuration(duration) {
if (!duration || duration === 'permanent') return null;
const match = duration.match(/^(\d+)(d|h)$/);
if (!match) return 7 * 24 * 60 * 60 * 1000; // default 7 days
const [, num, unit] = match;
const ms = unit === 'd' ? Number(num) * 24 * 60 * 60 * 1000 : Number(num) * 60 * 60 * 1000;
return ms;
}
module.exports = router;
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