Notifications/Newsfeed not displaying - Error 400 in request (username encoding?)

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Hi everyone! We’ve updated our wiki to 12.8 (running on Postgres, Tomcat 9) and integrated with Keycloak OpenID. Since then, the Notifications do not display – the “bell” shows correct number of notifications, mail notifications come about as expected (except of Mention notifications).
When seen via xml/rss, I can get all the Notifications allright – the same applies for NewsFeed.

But the Notification showhide opens empty, as well as the NewsFeed.

I have looked into the console and I can see the request being sent is
https://wiki.logio.cz/asyncrenderer/notifications/display/5ALERT_28xwiki%3AXWiki.titera%40logio\.cz_10_null_1297479130/request.wiki/xwiki/user/xwiki%3AXWiki.titera%40logio%255c.cz/11442?clientId=11442&timeout=500&wiki=xwiki
, returning 400.

What we saw is that the original “logio.cz” part of the username is first escaped as logio/.cz, then the escaping / encoded as %5C. and then once again the % is encoded as %25, so it results in %255c.

Anyone also using e-mails as usernames? Anyone experiencing it also? Any suggestions on how to solve it?

Thanks a lot for help!

Samuel

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Hi,

I see that apparently this is first escaped as logio\.cz, maybe your tomcat is not configured to support backslashes, so a quickfix might be to allow this configuration. You can check it on: https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Installation/InstallationWAR/InstallationTomcat/#HAllowing222F22and225C22inpagenames

Now indeed the fact that it used to work and it’s not working anymore shows that it’s a regression, so you should open a ticket for it on http://jira.xwiki.org.

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Hi, thanks, we’re going to check the Tomcat settings and we might also submit a ticket.