1170508 - Importing an .ics file with a duplicate ATTENDEE property parameter causes crash

Status: RESOLVED DUPLICATE of bug 875739

(Calendar :: Lightning Only, defect)

Description

[Andreas Lind]

Attachment: repro.ics

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.94 Safari/537.36

Steps to reproduce:

1) Start Thunderbird (with Lightning installed)
2) Go to the "Calendar" tab.
3) Events and Tasks -> Import...
4) Select the attached repro.ics file
5) Click "Open"


Actual results:

Thunderbird/Lightning stops reacting to mouse events and after a few seconds Ubuntu displays a gray overlay indicating that the application has become unresponsive. It seems to stay that way infinitely (although I chose to force-quit it after 10 minutes).


Expected results:

The event in the file should be imported and displayed in the calendar.

The file itself is a stripped-down version of an actual event originating from a Microsoft product (it has a bunch of "X-MICROSOFT-CDO-"-prefixed properties).

The inclusion of duplicate property parameters, although seemingly not invalid per RFC 5455) is clearly a bug in that piece of software, of course, but it seems like a thing that it should be easy enough to tolerate in Lightning's end.