It's possible to create a account with wrong username capitalisation

[JSoko]

see nextcloud/server#3305

Actual behaviour

If you have a user testuser you con connect with NextcloudAndroid entering the username Testuser
While uploading files you get a warning

Expected behaviour

No problems or don't connect because of the wrong capitalisation (T instead of t)

Steps to reproduce

see nextcloud/server#3305

[tobiasKaminsky]

cc @LukasReschke what is the desired behaviour?

[mario]

Seems to be a server issue - so closing it here.

[nickvergessen]

No the server can not handle this. You can get the correct user id casing from:
The cloud/user endpoint gives you the correct spelling in the <id> element:

curl -H "OCS-APIREQUEST: true" https://Admin:admin@localhost/ocs/v2.php/cloud/user
<?xml version="1.0"?>
<ocs>
 <meta>
  <status>ok</status>
  <statuscode>200</statuscode>
  <message>OK</message>
 </meta>
 <data>
  <id>admin</id>
  <display-name>Administrator</display-name>
 </data>
</ocs>

however not sure if that works with ldap, so I'd just use that if lower(id) === lower(provided id)

[tobiasKaminsky]

I tried it with my current NC and current android app and used "Tobi" instead of "tobi" and it is working without any issue. I tried both auto upload and manually upload.