fix: make sure joined_at is in seconds before saving

ts/receiver/configMessage.ts

@@ -789,7 +789,6 @@ async function handleGroupUpdate(latestEnvelopeTimestamp: number) {
   for (let index = 0; index < allGroupsInWrapper.length; index++) {
     const groupInWrapper = allGroupsInWrapper[index];
     window.inboxStore?.dispatch(groupInfoActions.handleUserGroupUpdate(groupInWrapper) as any);
-
     await handleSingleGroupUpdate({ groupInWrapper, latestEnvelopeTimestamp, userEdKeypair });
   }
 

ts/receiver/groupv2/handleGroupV2Message.ts

@@ -68,7 +68,7 @@ async function getInitializedGroupObject({
   if (!found) {
     found = {
       authData: null,
-      joinedAtSeconds: Date.now(),
+      joinedAtSeconds: Math.floor(Date.now()/ 1000),
       name: groupName,
       priority: 0,
       pubkeyHex: groupPk,

ts/session/apis/snode_api/swarmPolling.ts

@@ -462,6 +462,7 @@ export class SwarmPolling {
     );
     // We always handle the config messages first (for groups 03 or our own messages)
     await this.handleUserOrGroupConfMessages({ confMessages, pubkey, type });
+
     await this.handleRevokedMessages({ revokedMessages, groupPk: pubkey, type });
 
     // Merge results into one list of unique messages
@@ -716,15 +717,17 @@ export class SwarmPolling {
   }
 
   private async handleSeenMessages(
-    messages: Array<RetrieveMessageItem>
+    messages: Array<RetrieveMessageItemWithNamespace>
-  ): Promise<Array<RetrieveMessageItem>> {
+  ): Promise<Array<RetrieveMessageItemWithNamespace>> {
     if (!messages.length) {
       return [];
     }
 
-    const incomingHashes = messages.map((m: RetrieveMessageItem) => m.hash);
+    const incomingHashes = messages.map((m: RetrieveMessageItemWithNamespace) => m.hash);
     const dupHashes = await Data.getSeenMessagesByHashList(incomingHashes);
-    const newMessages = messages.filter((m: RetrieveMessageItem) => !dupHashes.includes(m.hash));
+    const newMessages = messages.filter(
+      (m: RetrieveMessageItemWithNamespace) => !dupHashes.includes(m.hash)
+    );
 
     return newMessages;
   }

ts/test/session/unit/libsession_wrapper/libsession_wrapper_user_groups_test.ts

@@ -1,6 +1,6 @@
 import { expect } from 'chai';
 
-import { LegacyGroupInfo } from 'libsession_util_nodejs';
+import { LegacyGroupInfo, UserGroupsWrapperNode } from 'libsession_util_nodejs';
 import { describe } from 'mocha';
 import Sinon from 'sinon';
 import { ConversationModel } from '../../../../models/conversation';
@@ -223,6 +223,21 @@ describe('libsession_user_groups', () => {
           'joinedAtSeconds in the wrapper should match the inputted group'
         ).to.equal(group.get('lastJoinedTimestamp'));
       });
+
+      it('throws when joined_at is too far in the future', async () => {
+        const us = await TestUtils.generateUserKeyPairs();
+
+        const groupWrapper = new UserGroupsWrapperNode(us.ed25519KeyPair.privKeyBytes, null);
+
+        const group = groupWrapper.createGroup();
+        group.joinedAtSeconds = 4099680000 - 1; // 4099680000 is 1st january 2100 GMT
+        groupWrapper.setGroup(group); // shouldn't throw
+        group.joinedAtSeconds = 4099680000 + 1; // 4099680000 is 1st january 2100 GMT
+        expect(() => {
+          groupWrapper.setGroup(group);
+        }).to.throw();
+      });
+
       it('if disappearing messages is on then the wrapper returned values should match the inputted group', async () => {
         const group = new ConversationModel({
           ...validArgs,

ts/test/session/unit/utils/job_runner/group_sync_job/GroupSyncJob_test.ts

@@ -57,7 +57,7 @@ function validUserGroup03WithSecKey(pubkey?: GroupPubkeyType) {
     secretKey: new Uint8Array(30),
     destroyed: false,
     invitePending: false,
-    joinedAtSeconds: Date.now(),
+    joinedAtSeconds: Math.floor(Date.now()/1000),
     kicked: false,
     priority: 0,
     pubkeyHex: pubkey || TestUtils.generateFakeClosedGroupV2PkStr(),