Login failed despite correct credentials

[alve89]

Affected apps

user_imap (self wrote, developed from user_external)

Expected behaviour

The user should be logged in after submitting the valid credentials

Actual behaviour

The logs say:
Warning core Login failed: 'first.last(Remote IP: '195...***')
that's it.

After submitting the login form the user is redirected back to the login form without any message that the credentials were invalid (URL: https://myowncloud.tld/temp/index.php/login?redirect_url=%252Ftemp%252Findex.php%252Fapps%252Ffiles%252F

So the login seems to be correct?!

The app does a little more than just logging in:

• Store user to oc_users (not external! With this I have a full compatible user for everything, its password is '')
• Set the users displayname in oc_users
• Store the users email address in oc_preferences
• Create all groups the user is in (data from an external user-details-server)
• Add user to this groups

The app worked with oC 8.2.5 and does now not work with 9.1.1.

Server configuration

Operating system: Linux 3.13 (?)

Web server: Apache 2.0

Database: MySQL 5.6.33

PHP version: 7.0

ownCloud version: 9.1.1

Client configuration

Browser: FF 45.4.0

Operating system: Win 7

Logs

ownCloud log (data/owncloud.log)

Warning 	core 	Login failed: 'first.last(Remote IP: '195.***.***.***') 

[PVince81]

@mklemme1 @kosli @cweiske are you also seeing this with 9.1.1 ?

[mklemme1]

As far as I see this is a self-made app, not the stock IMAP app or my extension.
We are using my extension to apps/user_external/lib/imap.php with 9.1.1 without problems.

[alve89]

Did owncloud 9 or 9.1.1 bring some new restrictions for logging in users? E.g. that the users need to be stored in users_external... Does someone know anything about this?

[PVince81]

@alve89 no but 9.1.1 brought some refactoring of the login code to make room for two factor auth. There should be no additional restrictions.

[alve89]

@PVince81 Ok, that's weird and I don't get why it doesn't work then anymore, but I found an alternative solution with the "normal" way of storing users.

[cweiske]

I have the same issue with user_external after upgrading from owncloud 9.0.x to 9.1.x - IMAP logins do not work anymore, despite having the correct credentials.

I even get redirected to the calendar app after login, but /index.php/apps/calendar/ redirects back to /login.

---

Solution: My user was in oc_users AND in oc_users_external. I guess previously if one backend failed, the next was used. Now that's not true anymore; if one fails because of "wrong password", the next is not tried as it was before.

Removing the old entry from oc_users made login work again.