impr: keep a list of ips that accessed the account

part of #4490

backend/src/api/controllers/user.ts

@@ -371,6 +371,7 @@ export async function getUser(
 
   const agentLog = buildAgentLog(req);
   Logger.logToDb("user_data_requested", agentLog, uid);
+  UserDAL.logIpAddress(uid, agentLog.ip, userInfo);
 
   let inboxUnreadSize = 0;
   if (req.ctx.configuration.users.inbox.enabled) {

backend/src/dal/user.ts

@@ -1050,3 +1050,21 @@ export async function checkIfUserIsPremium(
   if (expirationDate === -1) return true; //lifetime
   return expirationDate > Date.now();
 }
+
+export async function logIpAddress(
+  uid: string,
+  ip: string,
+  userInfoOverride?: MonkeyTypes.User
+): Promise<void> {
+  const user = userInfoOverride ?? (await getUser(uid, "logIpAddress"));
+  const currentIps = user.ips ?? [];
+  const ipIndex = currentIps.indexOf(ip);
+  if (ipIndex !== -1) {
+    currentIps.splice(ipIndex, 1);
+  }
+  currentIps.unshift(ip);
+  if (currentIps.length > 10) {
+    currentIps.pop();
+  }
+  await getUsersCollection().updateOne({ uid }, { $set: { ips: currentIps } });
+}

backend/src/types/types.d.ts

@@ -61,6 +61,8 @@ declare namespace MonkeyTypes {
     rewards: AllRewards[];
   }
 
+  type UserIpHistory = string[];
+
   interface User {
     autoBanTimestamps?: number[];
     addedAt: number;
@@ -98,6 +100,7 @@ declare namespace MonkeyTypes {
     lastReultHashes?: string[];
     lbOptOut?: boolean;
     premium?: PremiumInfo;
+    ips?: UserIpHistory;
   }
 
   interface UserStreak {