Default alert is not set for events with RECURRENCE-ID #248

VS-X · 2024-03-15T11:14:48Z

VS-X
Mar 15, 2024

Hi, I noticed that some events do not have a default calendar alert I set in the app, even on version 2.2. After some investigation, RECURRENCE-ID seems to be the culprit. If I remove that line from the .ics file and import it in icsx5, then the alert is correctly set to 3 minutes.
Below is a sample event that reproduces for me:

BEGIN:VEVENT
UID:***
RECURRENCE-ID;TZID=FLE Standard Time:20240312T110000
SUMMARY:Test Event
DTSTART;TZID=FLE Standard Time:20240313T150000
DTEND;TZID=FLE Standard Time:20240313T160000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20240315T091733Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:1
LOCATION:
END:VEVENT

ArnyminerZ · 2024-03-17T10:25:51Z

ArnyminerZ
Mar 17, 2024
Maintainer

I can confirm this. To reproduce, I've created two different ics files: untitled.ics and untitled-no-recurrence.ics. They are mostly the same file, with the example provided above, but as a complete iCal, with some stub timezone definition, and some UUIDv4 as uuids.

Steps:

Add both files to ICSx5, and set an alarm to 10 minutes before each event.
Synchronize
Open your calendar app. The one in untitled-no-recurrence.ics has the alarm, and untitled.ics doesn't.

5 replies

ArnyminerZ Mar 17, 2024
Maintainer

Logs

with RECURRENCE-ID:

Found VEVENT 6c4bc8bd-0cc2-49ee-aedb-2da0252fa632: Event=[alarms=[BEGIN:VALARM
 ACTION:DISPLAY
 TRIGGER:-PT10M
 END:VALARM
 ], attendees=[], categories=[], classification=CLASS:PUBLIC
 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240313T160000
 , dtStart=DTSTART;TZID=Europe/Sofia:20240313T150000
 , duration=null, exDates=[], exRules=[], exceptions=[Event=[alarms=[], attendees=[], categories=[], classification=CLASS:PUBLIC
 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240313T160000
 , dtStart=DTSTART;TZID=Europe/Sofia:20240313T150000
 , duration=null, exDates=[], exRules=[], exceptions=[], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[], recurrenceId=RECURRENCE-ID;TZID=Europe/Sofia:20240312T110000
 , status=STATUS:CONFIRMED
 , summary=Test Event, unknownProperties=[PRIORITY:5
 ], url=null, sequence=1, uid=6c4bc8bd-0cc2-49ee-aedb-2da0252fa632, userAgents=[]]], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[], recurrenceId=RECURRENCE-ID;TZID=Europe/Sofia:20240312T110000
 , status=STATUS:CONFIRMED
 , summary=Test Event, unknownProperties=[PRIORITY:5
 ], url=null, sequence=1, uid=6c4bc8bd-0cc2-49ee-aedb-2da0252fa632, userAgents=[]]

without RECURRENCE-ID:

Found VEVENT 9729688e-7a17-4ed8-9df0-8bb627106b83: Event=[alarms=[BEGIN:VALARM
 ACTION:DISPLAY
 TRIGGER:-PT10M
 END:VALARM
 ], attendees=[], categories=[], classification=CLASS:PUBLIC
 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240313T160000
 , dtStart=DTSTART;TZID=Europe/Sofia:20240313T150000
 , duration=null, exDates=[], exRules=[], exceptions=[], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[], recurrenceId=null, status=STATUS:CONFIRMED
 , summary=Test Event, unknownProperties=[PRIORITY:5
 ], url=null, sequence=1, uid=9729688e-7a17-4ed8-9df0-8bb627106b83, userAgents=[]]

Also, important to note:

UID 6c4bc8bd-0cc2-49ee-aedb-2da0252fa632 doesn't have a main event but only exceptions

so clearly, adding the RECURRENCE-ID without a main event breaks some things.

@VS-X please, can you provide an example of the full calendar? Maybe the issue is from your side, and not from the app's side. In any case, I wonder why this breaks the default alarm.

VS-X Mar 17, 2024
Author

Thank you for looking into it! I wouldn't want to provide an entirety of the calendar, but here is an extract with the real VCALENDAR block, and two events with the same UID:

The first one looks to be an original repeat event, which doesn't have a RECURRENCE-ID, and therefore has a default alarm
The second one seems to be one-time exception to the repeat event, which causes the problem

Github doesn't allow attaching .ics, so here it is in plain text:

BEGIN:VCALENDAR
METHOD:PUBLISH
PRODID:Microsoft Exchange Server 2010
VERSION:2.0
X-WR-CALNAME:Calendar
BEGIN:VTIMEZONE
TZID:FLE Standard Time
BEGIN:STANDARD
DTSTART:16010101T040000
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:16010101T000000
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T000000
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:GMT Standard Time
BEGIN:STANDARD
DTSTART:16010101T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=10
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T010000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
RRULE:FREQ=WEEKLY;UNTIL=20240813T080000Z;INTERVAL=2;BYDAY=TU;WKST=SU
UID:040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000
 010000000ABCECF8C63A0C545A1D35116EF737455
SUMMARY:Retro
DTSTART;TZID=FLE Standard Time:20240227T110000
DTEND;TZID=FLE Standard Time:20240227T120000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20240317T104129Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
LOCATION:
X-MICROSOFT-CDO-APPT-SEQUENCE:0
X-MICROSOFT-CDO-BUSYSTATUS:BUSY
X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
X-MICROSOFT-CDO-IMPORTANCE:1
X-MICROSOFT-CDO-INSTTYPE:1
X-MICROSOFT-DONOTFORWARDMEETING:FALSE
X-MICROSOFT-DISALLOW-COUNTER:FALSE
X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
END:VEVENT
BEGIN:VEVENT
UID:040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000
 010000000ABCECF8C63A0C545A1D35116EF737455
RECURRENCE-ID;TZID=FLE Standard Time:20240312T110000
SUMMARY:Retro
DTSTART;TZID=FLE Standard Time:20240313T150000
DTEND;TZID=FLE Standard Time:20240313T160000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20240317T104129Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:1
LOCATION:
X-MICROSOFT-CDO-APPT-SEQUENCE:1
X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
X-MICROSOFT-CDO-IMPORTANCE:1
X-MICROSOFT-CDO-INSTTYPE:3
X-MICROSOFT-DONOTFORWARDMEETING:FALSE
X-MICROSOFT-DISALLOW-COUNTER:FALSE
X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
END:VEVENT
END:VCALENDAR

ArnyminerZ May 16, 2024
Maintainer

~~Hi, first of all, and it might be just a copy-paste issue, the ical you provided has two events with the same UID, which is prohibited by RFC2445 4.8.4.7:~~

~~The UID itself MUST be a globally unique identifier.~~

~~But that's not the issue here, since I've modified the UID, and the alert still doesn't appear.~~

As far as I can see in the logs, the event is being processed correctly, and the alert is being added. It fails at some point when asking the Android system to add the event, when it removes the notification. So either is a problem with ical4android, or directly a bug in Android, I'm not sure.

I will keep digging into it to see what is happenning.

ArnyminerZ May 16, 2024
Maintainer

Here are some logs for debugging purposes

Logcat

17:37:28.806  I  Synchronizing (forceReSync=false,onlyMigrate=false)
17:37:28.826  D  Creating local calendar from subscription #1
17:37:28.889  I  Synchronizing ***, forceResync=false
17:37:28.913  I  Fetching remote file ***
17:37:28.937  D  app_time_stats: avg=61.42ms min=25.71ms max=333.26ms count=17
17:37:29.581  W  A resource failed to call release. 
17:37:29.651  W  sendCancelIfRunning: isInProgress=falsecallback=android.app.Activity$$ExternalSyntheticLambda0@e3fd5cb
17:37:29.704  I  at.bitfire.icsdroid:685cec64: onRequestHide at ORIGIN_CLIENT_HIDE_SOFT_INPUT reason HIDE_SOFT_INPUT
17:37:29.705  I  at.bitfire.icsdroid:685cec64: onFailed at PHASE_CLIENT_VIEW_SERVED
17:37:29.788  D  app_time_stats: avg=87.30ms min=14.63ms max=151.17ms count=13
17:37:30.789  D  app_time_stats: avg=27.68ms min=14.71ms max=44.39ms count=34
17:37:31.807  D  app_time_stats: avg=30.16ms min=14.78ms max=48.50ms count=32
17:37:32.826  D  app_time_stats: avg=37.59ms min=15.47ms max=59.56ms count=26
17:37:33.853  D  app_time_stats: avg=27.36ms min=13.80ms max=42.45ms count=34
17:37:34.431  I  UID 040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456 doesn't have a main event but only exceptions: {20240312T110000=BEGIN:VEVENT
                 UID:040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456
                 RECURRENCE-ID;TZID=Europe/Sofia:20240312T110000
                 SUMMARY:Retro
                 DTSTART;TZID=Europe/Sofia:20240313T150000
                 DTEND;TZID=Europe/Sofia:20240313T160000
                 CLASS:PUBLIC
                 PRIORITY:5
                 DTSTAMP:20240317T104129Z
                 TRANSP:OPAQUE
                 STATUS:CONFIRMED
                 SEQUENCE:1
                 LOCATION:
                 X-MICROSOFT-CDO-APPT-SEQUENCE:1
                 X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
                 X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
                 X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
                 X-MICROSOFT-CDO-IMPORTANCE:1
                 X-MICROSOFT-CDO-INSTTYPE:3
                 X-MICROSOFT-DONOTFORWARDMEETING:FALSE
                 X-MICROSOFT-DISALLOW-COUNTER:FALSE
                 X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
                 X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
                 END:VEVENT
                 }
17:37:34.431  I  Processing 2 events (ignoreLastModified=false)
17:37:34.432  D  Adding the default alarm to 040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737455.
17:37:34.468  D  Found VEVENT 040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737455: Event=[alarms=[BEGIN:VALARM
                 ACTION:DISPLAY
                 TRIGGER:-PT20M
                 END:VALARM
                 ], attendees=[], categories=[], classification=CLASS:PUBLIC
                 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240227T120000
                 , dtStart=DTSTART;TZID=Europe/Sofia:20240227T110000
                 , duration=null, exDates=[], exRules=[], exceptions=[], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[RRULE:FREQ=WEEKLY;WKST=SU;UNTIL=20240813T080000Z;INTERVAL=2;BYDAY=TU
                 ], recurrenceId=null, status=STATUS:CONFIRMED
                 , summary=Retro, unknownProperties=[PRIORITY:5
                 , X-MICROSOFT-CDO-APPT-SEQUENCE:0
                 , X-MICROSOFT-CDO-BUSYSTATUS:BUSY
                 , X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
                 , X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
                 , X-MICROSOFT-CDO-IMPORTANCE:1
                 , X-MICROSOFT-CDO-INSTTYPE:1
                 , X-MICROSOFT-DONOTFORWARDMEETING:FALSE
                 , X-MICROSOFT-DISALLOW-COUNTER:FALSE
                 , X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
                 , X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
                 ], url=null, sequence=0, uid=040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737455, userAgents=[]]
17:37:34.477  D  040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737455 not in local calendar, adding
17:37:34.574  D  Adding the default alarm to 040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456.
17:37:34.590  D  Found VEVENT 040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456: Event=[alarms=[BEGIN:VALARM
                 ACTION:DISPLAY
                 TRIGGER:-PT20M
                 END:VALARM
                 ], attendees=[], categories=[], classification=CLASS:PUBLIC
                 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240313T160000
                 , dtStart=DTSTART;TZID=Europe/Sofia:20240313T150000
                 , duration=null, exDates=[], exRules=[], exceptions=[Event=[alarms=[], attendees=[], categories=[], classification=CLASS:PUBLIC
                 , color=null, description=null, dtEnd=DTEND;TZID=Europe/Sofia:20240313T160000
                 , dtStart=DTSTART;TZID=Europe/Sofia:20240313T150000
                 , duration=null, exDates=[], exRules=[], exceptions=[], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[], recurrenceId=RECURRENCE-ID;TZID=Europe/Sofia:20240312T110000
                 , status=STATUS:CONFIRMED
                 , summary=Retro, unknownProperties=[PRIORITY:5
                 , X-MICROSOFT-CDO-APPT-SEQUENCE:1
                 , X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
                 , X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
                 , X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
                 , X-MICROSOFT-CDO-IMPORTANCE:1
                 , X-MICROSOFT-CDO-INSTTYPE:3
                 , X-MICROSOFT-DONOTFORWARDMEETING:FALSE
                 , X-MICROSOFT-DISALLOW-COUNTER:FALSE
                 , X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
                 , X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
                 ], url=null, sequence=1, uid=040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456, userAgents=[]]], lastModified=null, location=, opaque=true, organizer=null, rDates=[], rRules=[], recurrenceId=RECURRENCE-ID;TZID=Europe/Sofia:20240312T110000
                 , status=STATUS:CONFIRMED
                 , summary=Retro, unknownProperties=[PRIORITY:5
                 , X-MICROSOFT-CDO-APPT-SEQUENCE:1
                 , X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
                 , X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
                 , X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
                 , X-MICROSOFT-CDO-IMPORTANCE:1
                 , X-MICROSOFT-CDO-INSTTYPE:3
                 , X-MICROSOFT-DONOTFORWARDMEETING:FALSE
                 , X-MICROSOFT-DISALLOW-COUNTER:FALSE
                 , X-MICROSOFT-REQUESTEDATTENDANCEMODE:DEFAULT
                 , X-MICROSOFT-ISRESPONSEREQUESTED:FALSE
                 ], url=null, sequence=1, uid=040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456, userAgents=[]]
17:37:34.602  D  040000008200E00074C5B7101A82E008000000003FFB5BE80664DA01000000000000000010000000ABCECF8C63A0C545A1D35116EF737456 not in local calendar, adding
17:37:34.703  I  Deleting old events (retaining 2 events by UID) …
17:37:34.707  I  … 0 events deleted
17:37:34.707  I  Calendar sync successful, ETag="9cd-618900b4b75a1", lastModified=1715856804000
17:37:34.723  I  iCalendar file completely processed
17:37:34.726  I  Worker result SUCCESS for Work [ id=e405f3d2-d976-4b80-adc8-f03adcdcce12, tags={ at.bitfire.icsdroid.SyncWorker } ]

ArnyminerZ May 16, 2024
Maintainer

See #327. Fixed in #328

Uh oh!

Default alert is not set for events with RECURRENCE-ID #248

Uh oh!

VS-X Mar 15, 2024

Replies: 1 comment · 5 replies

Uh oh!

ArnyminerZ Mar 17, 2024 Maintainer

Uh oh!

ArnyminerZ Mar 17, 2024 Maintainer

Logs

Uh oh!

Uh oh!

VS-X Mar 17, 2024 Author

Uh oh!

Uh oh!

ArnyminerZ May 16, 2024 Maintainer

Uh oh!

Uh oh!

ArnyminerZ May 16, 2024 Maintainer

Uh oh!

ArnyminerZ May 16, 2024 Maintainer

VS-X
Mar 15, 2024

Replies: 1 comment 5 replies

ArnyminerZ
Mar 17, 2024
Maintainer

ArnyminerZ Mar 17, 2024
Maintainer

VS-X Mar 17, 2024
Author

ArnyminerZ May 16, 2024
Maintainer

ArnyminerZ May 16, 2024
Maintainer

ArnyminerZ May 16, 2024
Maintainer