Cannot add user to public chatroom

[frlan]

Description:

When trying to adding a user to a chat room, the search is not showing any result

This worked back in 1.x times without any issues.

Steps to reproduce:

1. Go to Members of an chatroom
2. Add User
3. Enter something to the search filed

Expected behavior:

List of users fitting the given input

Actual behavior:

Empty result set

Server Setup Information:

• Version of Rocket.Chat Server: 3.6.1

• Operating System: NixOS

• Deployment Method: tar

• Number of Running Instances: 1

• DB Replicaset Oplog:

  db.adminCommand( { replSetGetStatus: 1 } )
  {
  "set" : "rs01",
  "date" : ISODate("2020-09-22T11:05:31.376Z"),
  "myState" : 1,
  "term" : NumberLong(15),
  "syncingTo" : "",
  "syncSourceHost" : "",
  "syncSourceId" : -1,
  "heartbeatIntervalMillis" : NumberLong(2000),
  "optimes" : {
      "lastCommittedOpTime" : {
          "ts" : Timestamp(1600772721, 1),
          "t" : NumberLong(15)
      },
      "readConcernMajorityOpTime" : {
          "ts" : Timestamp(1600772721, 1),
          "t" : NumberLong(15)
      },
      "appliedOpTime" : {
          "ts" : Timestamp(1600772721, 1),
          "t" : NumberLong(15)
      },
      "durableOpTime" : {
          "ts" : Timestamp(1600772721, 1),
          "t" : NumberLong(15)
      }
  },
  "members" : [
      {
          "_id" : 0,
          "name" : "172.16.xx.xx:27017",
          "health" : 1,
          "state" : 1,
          "stateStr" : "PRIMARY",
          "uptime" : 1863238,
          "optime" : {
              "ts" : Timestamp(1600772721, 1),
              "t" : NumberLong(15)
          },
          "optimeDate" : ISODate("2020-09-22T11:05:21Z"),
          "syncingTo" : "",
          "syncSourceHost" : "",
          "syncSourceId" : -1,
          "infoMessage" : "",
          "electionTime" : Timestamp(1598909495, 1),
          "electionDate" : ISODate("2020-08-31T21:31:35Z"),
          "configVersion" : 1,
          "self" : true,
          "lastHeartbeatMessage" : ""
      }
  ],
  "ok" : 1,
  "operationTime" : Timestamp(1600772721, 1),
  "$clusterTime" : {
      "clusterTime" : Timestamp(1600772721, 1),
      "signature" : {
          "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
          "keyId" : NumberLong(0)
      }
  }
  }

• NodeJS Version: v12.15.0

• MongoDB Version: v3.6.19

Client Setup Information

• Desktop App or Browser Version: Desktop app and browser
• Operating System: --

Additional context

Relevant logs:

Server is not writing any error to log with default settings.

[fdellwing]

Works for me with 3.6.1.

[brtptrs]

I can confirm this issue on 3.6.0 This is a screenshot when trying to add a user to a private room. No existing user can be added.

[brtptrs]

It could be a duplicate of https://github.com/RocketChat/Rocket.Chat/issues/18789

[fdellwing]

Maybe try updating to 3.6.2? Also might be worth it to test if /invite command works for you.

[frlan]

@brtptrs Indeed. Looks very similar.

[brtptrs]

The problem still exists after upgrading to 3.6.3 Unfortunately I have no idea how to debug this issue.

[Weuxel]

We use authentication via LDAP and experience the same issue. The problem is solved however, if the user is given a name in the user profile.

[brtptrs]

In our case it is irrelevant weather the User has a name in his/her profile.

[frlan]

@brtptrs @Weuxel We found a possible reason introduced with https://github.com/RocketChat/Rocket.Chat/blob/d01b83a16b1dad8b4ca4c65514d30505d5280757/app/api/server/lib/users.js#L7

[b90g]

witnessing similar occurrences with a SAML connected RocketChat with what appears to be random users.

Work-Around is so far tagging the user (@userName in a chat message) which is especially annoying if you're in a group (private chat) where you got to switch the room to a channel tag the user ans switch back to group...