[Users] [Bug 4086] New: VCalendar invitation presented as "Error - Unknown calendar component type."

[noreply at thewildbeast.co.uk]

https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4086

            Bug ID: 4086
           Summary: VCalendar invitation presented as "Error - Unknown
                    calendar component type."
    Classification: Unclassified
           Product: Claws Mail
           Version: 3.17.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Plugins/vCalendar
          Assignee: users at lists.claws-mail.org
          Reporter: rol at as2917.net

Claws 3.17.0, using libical 2.0.0, is presenting the invitations I received as
empty except for the Event: line that contaiins "Error - Unknown calendar
component type.".

I've started Claws in --debug mode. It displays:

procheader.c:155:generic_get_one_field: empty line
    message/rfc822 (offset:0 length:7377 encoding: 6)
        multipart/alternative (offset:2212 length:5165 encoding: 6)
            text/plain (offset:2353 length:1 encoding: 3)
            text/html (offset:2495 length:2356 encoding: 3)
            text/calendar (offset:4997 length:2327 encoding: 4)
procheader.c:155:generic_get_one_field: empty line
mimeview.c:828:text/calendar
messageview.c:1289:found part 6/alternative
mimeview.c:828:text/calendar
mimeview.c:828:text/calendar
vcalendar.c:246:vcal_viewer_get_widget
vcalendar.c:852:vcal_viewer_show_mimepart : /home2/rol/Mail/Dossiers
personnels/Boite de reception/444542
vcalendar.c:255:vcal_viewer_clear_viewer
vcalendar.c:229:creating /home2/rol/.claws-mail/mimetmp/0000009e.mimetmp
vcal_folder.c:2184:Converting DTSTART to UTC.
vcal_folder.c:2200:Converting DTEND to UTC.
vcalendar.c:881:TIMING vcal_viewer_show_mimepart : 0s002ms
summaryview.c:3773:TIMING summary_display_msg_full : 0s006ms

and the file /home2/rol/.claws-mail/mimetmp/0000009e.mimetmp contains:

BEGIN:VCALENDAR
METHOD:REQUEST
PRODID:Microsoft Exchange Server 2010
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Romance Standard Time
BEGIN:STANDARD
DTSTART:16010101T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
ORGANIZER;CN=My Colleague:MAILTO:My.Colleague at xxxx.net
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Paul Rolla
 nd:MAILTO:rol at xxxx.net
DESCRIPTION;LANGUAGE=en-US:\n
UID:040000008200E00074C5B7101A82E00800000000A0D0F5287543D401000000000000000
 010000000D29004CD1B9C5F4A97702C6FF336B1A5
SUMMARY;LANGUAGE=en-US:Points projets EU
DTSTART;TZID=Romance Standard Time:20180903T140000
DTEND;TZID=Romance Standard Time:20180903T153000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20180903T085943Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
LOCATION;LANGUAGE=en-US:JP office
X-MICROSOFT-CDO-APPT-SEQUENCE:0
X-MICROSOFT-CDO-OWNERAPPTID:-1100769310
X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
X-MICROSOFT-CDO-IMPORTANCE:1
X-MICROSOFT-CDO-INSTTYPE:0
X-MICROSOFT-DONOTFORWARDMEETING:FALSE
X-MICROSOFT-DISALLOW-COUNTER:FALSE
BEGIN:VALARM
DESCRIPTION:REMINDER
TRIGGER;RELATED=START:-PT15M
ACTION:DISPLAY
END:VALARM
END:VEVENT
END:VCALENDAR

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