@stefano-cossu Same request. Please allow a configurable default reminder for all events within the calendar.

Hi,

The ICS sources are available here : https://www.data.gouv.fr/fr/datasets/le-calendrier-scolaire/ and the links I tried to use are https://fr.ftp.opendatasoft.com/openscol/fr-en-calendrier-scolaire/Zone-B.ics

This feed contains invalid data:

DTSTAMP:20211001T010008Z DTSTART;VALUE=DATE:20220707 DTEND: ← no value, invalid! SUMMARY:Vacances d'Été LOCATION:Zone B

Also, the events don’t have an UID, so all events must be re-synced at every sync. I recommend to contact the vendor to fix these problems:

invalid DTEND entry missing UIDs of events

You can also check with https://icalendar.org/validator.html to see the problems.

@devvv4ever Couldn’t ICSx5 add a small delay at the start of the sync process to work around the problem? Or add such a delay only after this error has been detected at least once?

@rfc2822 thanks for this feedback

Here is a summary of what I found:

URL prefix in QR code: webcal:
ICSx5 installed already?: No
Result: “Sorry, the requested application could not be launched. The barcode contents may be invalid”

URL prefix in QR code: webcal:
ICSx5 installed already?: Yes
Result: the button says “Open in browser” but it actually opens ICSx5 correctly

URL prefix in QR code: http:
ICSx5 installed already?: Yes
Result: the button says “Open in browser” and it goes to the browser, not ICSx5

Conclusion: I think it is probably best to use http:// URLs in the QR codes. Server-side script can see if the Accept: header includes text/calendar and either return the calendar or display a help page with both a clickable webcal: link and also a download link for ICSx5. I’ll publish an example later.

@rfc2822 I factory reset my phone and I don’t have the issue anymore. It’s either a broken update from OEM or I messed something up while uninstalling/disabling bloatware.

This also works, but doesn’t help at least for the Google Playstore:

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml index 8c0c897..d319a7e 100644 --- a/app/src/main/AndroidManifest.xml +++ b/app/src/main/AndroidManifest.xml @@ -15,6 +15,7 @@ android:maxSdkVersion="22" /> <!-- add/update/delete events --> <uses-permission android:name="android.permission.READ_CALENDAR" /> + <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_CALENDAR" /> <!-- view/change the sync interval and whether the account is synchronizing --> <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" /> @@ -39,6 +40,7 @@ android:name=".MyApp" android:networkSecurityConfig="@xml/network_security" android:requestLegacyExternalStorage="true" + android:preserveLegacyExternalStorage="true" android:theme="@style/AppTheme" tools:ignore="UnusedAttribute"> @@ -158,4 +160,4 @@ android:parentActivityName=".ui.CalendarListActivity" /> </application> -</manifest> \ No newline at end of file +</manifest>

After installation, I manually set the permissions so that ICSx can manage all files.

Ideally writing file:/// would just open a proper file picker (or there would be an icon for this case).

@devvv4ever no, my Phone is now running latest Lineageos Android 11. Actually I have had this error for a while, but waited to report it until until I got my phone updated to latest version.

@rfc2822 said in Tasker sync integration:

@markcs Hi,

You can synchronize the ICSx⁵ account like every other system account over the Android API. No special actions are needed for ICSx⁵. I think automation apps should support that.

Excellent. Thank you!

@devvv4ever Thank you very much for investigation.

All the subscriptions are gone after a while.
And Others calendars disappear, too(Google Calender and Digcal).

My Tablet is FireHD8 PLUS .

@thad-malley Can you share more information on the error? Your post didn’t contain any more details.

@morphil Thanks for the update! Yes, the M is mandatory.

@danc Which version did you have before? Often such problems are not really related to the updates but to other factors. Can you please provide the iCalendar files so that I can have a look?

As I understand it, this is clearly a Google Calendar problem. We could introduce ugly and cumbersome workarounds (like faking a new main event with RDATEs for all instances) for this; but these events as given are not valid. The same behavior would at the latest with CalDAV and r/w calendars cause problems and unsyncable events. Also, I have never seen it from any other client or server.

Do you know whether other iCalendar clients (like Thunderbird, Evolution, Outlook…) can understand these events?

Do you know where to report Google Calendar problems?

@bananer said in Allow backup and restore:

Hi,

in the app’s Android Manifest, allowBackup is set to false. This prevents it from being backed up e.g. with SeedVault.

What’s the reason behind that? Would you consider removing the attribute to allow backups?

No, it won’t work. Backup is not implemented and won’t work because the account is not backed up.

It would have to be implemented explicitly (which is on our todo list).

I experience a similar issue with several public Google calendars. However, it’s not unique to ICSx5, but happens on other clients too, including Mozilla Thunderbird and Mailfence. Basically, what I am observing is the following:

On adding the calendar, the client is generally able to fetch all events. But on subsequent tries to refresh, it fails.

A public Google calendar (https://calendar.google.com/calendar/ical/aikfotboll2019%40gmail.com/public/basic.ics) that I have subscribed to for several months sporadically fails with the infamous error “failed to connect to calendar.google.com …”. However, I have reason to believe that it occasionally succeeds, because there are events in my calendar that I don’t think were there at the time of subscribing.

An hour ago, I tried adding another public Google calendar (https://calendar.google.com/calendar/ical/sv.swedish%23holiday%40group.v.calendar.google.com/public/basic.ics) to Thunderbird. Again, adding it succeeded, and events showed up as expected. However, it soon changed status to “The calendar … is momentarily not available” and has stayed that way since.

Just now, I’ve been trying to subscribe to several public calendars that are not hosted by Google, e.g. webcal://www.allsvenskan.se/prenumerera-pa-matcherna-i-din-kalender/aik.ics and https://www.calendarlabs.com/ical-calendar/ics/76/US_Holidays.ics. However, both of them fail the “Validating calendar resource…” step.

If my guess is correct that the background synchronization occasionally succeeds, I believe it would be an improvement to let the user add the calendar regardless of the outcome of the calendar resource validation. Perhaps a button “Add anyway” in the failure dialog. That way, the app would periodically retry fetching it for me in the background.

EDIT: Here’s some output from adb logcat '*:W' 'icsx5:V' when pulling to refresh in ICSx5 with a single calendar subscription:

03-13 14:40:11.415 23218 23218 D icsx5 : Sync running: false 03-13 14:40:11.416 23218 23441 I icsx5 : Synchronizing Calendar subscriptions 03-13 14:40:11.417 23218 23218 D icsx5 : Sync running: true 03-13 14:40:11.433 23218 23442 I icsx5 : Synchronizing https://calendar.google.com/calendar/ical/aikfotboll2019@gmail.com/public/basic.ics 03-13 14:40:12.680 1451 1451 W Looper : Slow dispatch took 259ms main h=android.app.ActivityThread$H c=android.app.-$$Lambda$LoadedApk$ReceiverDispatcher$Args$_BumDX2UKsnxLVrE6UJsJZkotuA@9b649a9 m=0 03-13 14:40:12.680 1451 1451 W Looper : Slow delivery took 268ms main h=android.app.ActivityThread$H c=android.app.-$$Lambda$LoadedApk$ReceiverDispatcher$Args$_BumDX2UKsnxLVrE6UJsJZkotuA@ec50b2e m=0 03-13 14:40:12.713 1451 1487 W Searchables: No global search activity found 03-13 14:40:12.715 1451 1487 W VoiceInteractionManagerService: no available voice interaction services found for user 0 03-13 14:40:13.952 1451 1451 W Looper : Drained 03-13 14:40:18.018 18028 21550 W AlarmSleepTimer: Setting alarm to wake up in 55000ms. 03-13 14:40:18.024 18028 21551 W AlarmSleepTimer: Setting alarm to wake up in 55000ms. 03-13 14:40:18.025 18028 18028 W AlarmSleepTimer: Waking up. 03-13 14:40:32.068 23218 23442 W icsx5 : Sync error 03-13 14:40:32.068 23218 23442 W icsx5 : java.net.SocketTimeoutException: failed to connect to calendar.google.com/2a00:1450:400f:803::200e (port 443) from /fc00:bbbb:bbbb:bb01::8:358e (port 38126) after 10000ms 03-13 14:40:32.068 23218 23442 W icsx5 : at libcore.io.IoBridge.connectErrno(IoBridge.java:191) 03-13 14:40:32.068 23218 23442 W icsx5 : at libcore.io.IoBridge.connect(IoBridge.java:135) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.net.Socket.connect(Socket.java:621) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.platform.Platform.connectSocket(Platform.kt:120) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:295) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:207) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:226) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201) 03-13 14:40:32.068 23218 23442 W icsx5 : at okhttp3.internal.connection.RealCall.execute(RealCall.kt:154) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.CalendarFetcher.fetchNetwork(CalendarFetcher.kt:129) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.CalendarFetcher.run(CalendarFetcher.kt:44) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.ProcessEventsTask.processEvents(ProcessEventsTask.kt:101) 03-13 14:40:32.068 23218 23442 W icsx5 : at at.bitfire.icsdroid.ProcessEventsTask.run(ProcessEventsTask.kt:34) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 03-13 14:40:32.068 23218 23442 W icsx5 : at java.lang.Thread.run(Thread.java:919) 03-13 14:40:32.068 23218 23442 W icsx5 : Suppressed: java.net.SocketTimeoutException: failed to connect to calendar.google.com/142.250.74.110 (port 443) from /10.71.53.143 (port 47555) after 10000ms 03-13 14:40:32.068 23218 23442 W icsx5 : ... 32 more 03-13 14:40:32.114 15710 17155 W ContentResolver: Failed to get type for: content://com.android.calendar (Unknown URL content://com.android.calendar) 03-13 14:40:32.129 23218 23442 I icsx5 : iCalendar file completely processed 03-13 14:40:32.162 23218 23218 D icsx5 : Sync running: false

EDIT(2): After restarting my phone, synchronization succeeded. Logs:

03-13 14:53:22.881 5684 5684 D icsx5 : Sync running: false 03-13 14:53:22.882 5684 6315 I icsx5 : Synchronizing Calendar subscriptions 03-13 14:53:22.891 5684 5684 D icsx5 : Sync running: true 03-13 14:53:22.941 5684 6316 I icsx5 : Synchronizing https://calendar.google.com/calendar/ical/aikfotboll2019@gmail.com/public/basic.ics 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden field Ljava/util/Collections$SynchronizedCollection;->mutex:Ljava/lang/Object; (greylist-max-o, reflection, denied) 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden method Ljava/util/Collections$SynchronizedSet;-><init>(Ljava/util/Set;Ljava/lang/Object;)V (greylist-max-o, reflection, denied) 03-13 14:53:23.441 5684 6316 W itfire.icsdroi: Accessing hidden method Ljava/util/Collections$SynchronizedCollection;-><init>(Ljava/util/Collection;Ljava/lang/Object;)V (greylist-max-o, reflection, denied) 03-13 14:53:23.449 2516 2516 W AvrcpMediaPlayerWrapper: The session was destroyed org.thoughtcrime.securesms 03-13 14:53:23.566 5684 6316 I icsx5 : Processing 102 events 03-13 14:53:23.566 5684 6316 D icsx5 : Found VEVENT: 5e4a2t8cu0jr6itjfvi0rt59os@google.com 03-13 14:53:23.571 5684 6316 D icsx5 : 5e4a2t8cu0jr6itjfvi0rt59os@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135817Z 03-13 14:53:23.571 5684 6316 D icsx5 : 5e4a2t8cu0jr6itjfvi0rt59os@google.com has not been modified since last sync 03-13 14:53:23.571 5684 6316 D icsx5 : Found VEVENT: 6hpp58n511h6vvnv6tsfgq8c9r@google.com 03-13 14:53:23.574 5684 6316 D icsx5 : 6hpp58n511h6vvnv6tsfgq8c9r@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135652Z 03-13 14:53:23.574 5684 6316 D icsx5 : 6hpp58n511h6vvnv6tsfgq8c9r@google.com has not been modified since last sync 03-13 14:53:23.574 5684 6316 D icsx5 : Found VEVENT: 0p3vad213ak6ods0he6r4lb3r2@google.com 03-13 14:53:23.577 5684 6316 D icsx5 : 0p3vad213ak6ods0he6r4lb3r2@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135457Z 03-13 14:53:23.577 5684 6316 D icsx5 : 0p3vad213ak6ods0he6r4lb3r2@google.com has not been modified since last sync 03-13 14:53:23.577 5684 6316 D icsx5 : Found VEVENT: 22rv6n2d1usnuvceof1u1ofu24@google.com 03-13 14:53:23.580 5684 6316 D icsx5 : 22rv6n2d1usnuvceof1u1ofu24@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135345Z 03-13 14:53:23.580 5684 6316 D icsx5 : 22rv6n2d1usnuvceof1u1ofu24@google.com has not been modified since last sync 03-13 14:53:23.580 5684 6316 D icsx5 : Found VEVENT: 2liakem1g049dnq4a5oi5h0a0h@google.com 03-13 14:53:23.583 5684 6316 D icsx5 : 2liakem1g049dnq4a5oi5h0a0h@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135152Z 03-13 14:53:23.583 5684 6316 D icsx5 : 2liakem1g049dnq4a5oi5h0a0h@google.com has not been modified since last sync 03-13 14:53:23.584 5684 6316 D icsx5 : Found VEVENT: 2calf7fa7kp2ied7c8u7a2u7g9@google.com 03-13 14:53:23.587 5684 6316 D icsx5 : 2calf7fa7kp2ied7c8u7a2u7g9@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T135044Z 03-13 14:53:23.587 5684 6316 D icsx5 : 2calf7fa7kp2ied7c8u7a2u7g9@google.com has not been modified since last sync 03-13 14:53:23.587 5684 6316 D icsx5 : Found VEVENT: 57cpoei5m4vrtmg1n44l64oo81@google.com 03-13 14:53:23.591 5684 6316 D icsx5 : 57cpoei5m4vrtmg1n44l64oo81@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T134920Z 03-13 14:53:23.591 5684 6316 D icsx5 : 57cpoei5m4vrtmg1n44l64oo81@google.com has not been modified since last sync 03-13 14:53:23.591 5684 6316 D icsx5 : Found VEVENT: 1smup6s5acid4nuposhb7js8b3@google.com 03-13 14:53:23.594 5684 6316 D icsx5 : 1smup6s5acid4nuposhb7js8b3@google.com already in local calendar, lastModified = LAST-MODIFIED:20210312T134753Z ... 03-13 14:53:23.859 5684 6316 D icsx5 : 5gba371of6t628497692eo6atq@google.com has not been modified since last sync 03-13 14:53:23.859 5684 6316 D icsx5 : Found VEVENT: 5562cqun5gv3cjh4114i8gfc1e@google.com 03-13 14:53:23.866 5684 6316 D icsx5 : 5562cqun5gv3cjh4114i8gfc1e@google.com already in local calendar, lastModified = LAST-MODIFIED:20190115T140451Z 03-13 14:53:23.866 5684 6316 D icsx5 : 5562cqun5gv3cjh4114i8gfc1e@google.com has not been modified since last sync 03-13 14:53:23.866 5684 6316 D icsx5 : Found VEVENT: 4i4t02j4ionf9drpd6nb16oqtu@google.com 03-13 14:53:23.874 5684 6316 D icsx5 : 4i4t02j4ionf9drpd6nb16oqtu@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101951Z 03-13 14:53:23.874 5684 6316 D icsx5 : 4i4t02j4ionf9drpd6nb16oqtu@google.com has not been modified since last sync 03-13 14:53:23.874 5684 6316 D icsx5 : Found VEVENT: 0emnlecr2lvt1u6u47r5if5fug@google.com 03-13 14:53:23.881 5684 6316 D icsx5 : 0emnlecr2lvt1u6u47r5if5fug@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101812Z 03-13 14:53:23.881 5684 6316 D icsx5 : 0emnlecr2lvt1u6u47r5if5fug@google.com has not been modified since last sync 03-13 14:53:23.881 5684 6316 D icsx5 : Found VEVENT: 7127o5n2ljntc4fgi8d4e8i921@google.com 03-13 14:53:23.890 5684 6316 D icsx5 : 7127o5n2ljntc4fgi8d4e8i921@google.com already in local calendar, lastModified = LAST-MODIFIED:20181204T101610Z 03-13 14:53:23.890 5684 6316 D icsx5 : 7127o5n2ljntc4fgi8d4e8i921@google.com has not been modified since last sync 03-13 14:53:23.890 5684 6316 I icsx5 : Deleting old events (retaining 102 events by UID) … 03-13 14:53:23.917 5684 6316 I icsx5 : … 0 events deleted 03-13 14:53:23.917 5684 6316 I icsx5 : Calendar sync successful, ETag=null, lastModified=null 03-13 14:53:23.927 5156 5499 W ContentResolver: Failed to get type for: content://com.android.calendar (Unknown URL content://com.android.calendar) 03-13 14:53:23.948 5684 6316 I icsx5 : iCalendar file completely processed 03-13 14:53:23.978 5684 5684 D icsx5 : Sync running: false