removing and recreating a user causes internal server error when the user is still active

[jnweiger]

Server 10.2.1, firefox browser.

When a user is removed from the system, he should be told so, when he tries to acess the system. Instead he may see an internal error.

Steps to reproduce:

• admin creates user Alice
• user Alice logs in on the web gui and sees her skeleton files.
• user Alice shortens the URL to the owncloud base URL and hits enter. She is returned to her folder view.
• admin deletes user Alice
• Alice clicks on folder 'Documents' and waits 10 seconds. She gets logged out and sees a login prompt on her web browser.
• admin creates user Alice without setting a password.
• (immediately within 10 seconds) user Alice shortens the URL to the owncloud base URL and hits enter. She gets an internal server error.

[jnweiger]

Last few lines from the server log:

{"reqId":"VA0uaM8DBSsPseaUbWQp","level":3,"time":"2019-08-15T15:21:17+00:00","remoteAddr":"127.0.0.1","user":"admin","app":"no app in context","method":"POST","url":"\/owncloud\/index.php\/settings\/users\/users","message":"User backend OC\\User\\Database is returning home: \/var\/www\/owncloud-enterprise-complete-20190703\/data\/Alice for user: Alice which differs from existing value: "}
{"reqId":"VA0uaM8DBSsPseaUbWQp","level":3,"time":"2019-08-15T15:21:17+00:00","remoteAddr":"127.0.0.1","user":"admin","app":"settings","method":"POST","url":"\/owncloud\/index.php\/settings\/users\/users","message":"Can't send new user mail to a@ex.com: Expected response code 220 but got an empty response"}
{"reqId":"GhGbZhVyPYPItNxLj3JE","level":3,"time":"2019-08-15T15:22:02+00:00","remoteAddr":"127.0.0.1","user":"admin","app":"no app in context","method":"POST","url":"\/owncloud\/index.php\/settings\/users\/users","message":"User backend OC\\User\\Database is returning home: \/var\/www\/owncloud-enterprise-complete-20190703\/data\/Alice for user: Alice which differs from existing value: "}
{"reqId":"GhGbZhVyPYPItNxLj3JE","level":3,"time":"2019-08-15T15:22:02+00:00","remoteAddr":"127.0.0.1","user":"admin","app":"settings","method":"POST","url":"\/owncloud\/index.php\/settings\/users\/users","message":"Can't send new user mail to a@ex.com: Expected response code 220 but got an empty response"}
{"reqId":"FmMfrreIpQTxYXBRtvrA","level":3,"time":"2019-08-15T15:22:10+00:00","remoteAddr":"127.0.0.1","user":"Alice","app":"index","method":"GET","url":"\/owncloud\/index.php\/apps\/files\/","message":"Exception: {\"Exception\":\"OCP\\\\Files\\\\NotFoundException\",\"Message\":\"\",\"Code\":0,\"Trace\":\"#0 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/apps\\\/files\\\/lib\\\/Controller\\\/ViewController.php(134): OC_Helper::getStorageInfo('\\\/', false)\\n#1 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/apps\\\/files\\\/lib\\\/Controller\\\/ViewController.php(207): OCA\\\\Files\\\\Controller\\\\ViewController->getStorageInfo()\\n#2 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/AppFramework\\\/Http\\\/Dispatcher.php(153): OCA\\\\Files\\\\Controller\\\\ViewController->index('', '', NULL, NULL)\\n#3 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/AppFramework\\\/Http\\\/Dispatcher.php(85): OC\\\\AppFramework\\\\Http\\\\Dispatcher->executeController(Object(OCA\\\\Files\\\\Controller\\\\ViewController), 'index')\\n#4 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/AppFramework\\\/App.php(100): OC\\\\AppFramework\\\\Http\\\\Dispatcher->dispatch(Object(OCA\\\\Files\\\\Controller\\\\ViewController), 'index')\\n#5 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/AppFramework\\\/Routing\\\/RouteActionHandler.php(46): OC\\\\AppFramework\\\\App::main('ViewController', 'index', Object(OC\\\\AppFramework\\\\DependencyInjection\\\\DIContainer), Array)\\n#6 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/Route\\\/Router.php(342): OC\\\\AppFramework\\\\Routing\\\\RouteActionHandler->__invoke(Array)\\n#7 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/base.php(911): OC\\\\Route\\\\Router->match('\\\/apps\\\/files\\\/')\\n#8 \\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/index.php(54): OC::handleRequest()\\n#9 {main}\",\"File\":\"\\\/var\\\/www\\\/owncloud-enterprise-complete-20190703\\\/lib\\\/private\\\/legacy\\\/helper.php\",\"Line\":585}"}

[DeepDiver1975]

I prefer to mark this as wont-fix. This is a super rare scenario. The underlying issue is that we require the explicit login of the user to boot strap the user's data folder.

The data folder was killed by removing the user

[jnweiger]

I agree that this is extremely rare in real live. But it happens when testing. To reset to clean scenario preconditions, it seemed a natural thing to delete and recreate the involved users. We'll ignore orworkaround these errors then...

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.