No notification for EXCEPTION at.bitfire.dav4jvm.exception.HttpException: HTTP 400 Bad Request



  • Hi Davx5 team,

    I added an event on my mobile phone calendar, which seemed to have worked well. The event was shown on the device, so I thought it was also synced to the server and invites were sent out.

    The upload however must have failed, the event did not show up on the server. In the detailed log, I found the following exception created when trying to upload the event:

    2019-04-10 10:21:54 134063 [syncadapter.SyncManager] HTTP/DAV exception
    EXCEPTION at.bitfire.dav4jvm.exception.HttpException: HTTP 400 Bad Request
    	at at.bitfire.dav4jvm.DavResource.checkStatus(DavResource.kt:364)
    	at at.bitfire.dav4jvm.DavResource.checkStatus(DavResource.kt:338)
    	at at.bitfire.dav4jvm.DavResource.put(DavResource.kt:244)
    	at at.bitfire.davdroid.syncadapter.SyncManager$uploadDirty$1$1.invoke(SyncManager.kt:326)
    	at at.bitfire.davdroid.syncadapter.SyncManager$uploadDirty$1$1.invoke(SyncManager.kt:53)
    	at at.bitfire.davdroid.syncadapter.SyncManager.useRemote(SyncManager.kt:809)
    	at at.bitfire.davdroid.syncadapter.SyncManager$uploadDirty$1.invoke(SyncManager.kt:313)
    	at at.bitfire.davdroid.syncadapter.SyncManager$uploadDirty$1.invoke(SyncManager.kt:53)
    	at at.bitfire.davdroid.syncadapter.SyncManager.useLocal(SyncManager.kt:795)
    	at at.bitfire.davdroid.syncadapter.SyncManager.uploadDirty(SyncManager.kt:304)
    	at at.bitfire.davdroid.syncadapter.SyncManager$performSync$1.invoke(SyncManager.kt:126)
    	at at.bitfire.davdroid.syncadapter.SyncManager$performSync$1.invoke(SyncManager.kt:53)
    	at at.bitfire.davdroid.syncadapter.SyncManager.unwrapExceptions(SyncManager.kt:835)
    	at at.bitfire.davdroid.syncadapter.SyncManager.performSync(SyncManager.kt:112)
    	at at.bitfire.davdroid.syncadapter.CalendarsSyncAdapterService$CalendarsSyncAdapter.sync(CalendarsSyncAdapterService.kt:55)
    	at at.bitfire.davdroid.syncadapter.SyncAdapterService$SyncAdapter.onPerformSync(SyncAdapterService.kt:73)
    	at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:272)
    

    I was not aware of the upload failure until I got access to another device, where the event was not shown. If I had seen a notification telling me that something went wrong for an event when trying to upload it (just as it is shown for https://forums.bitfire.at/topic/2021/exception-at-bitfire-ical4android-invalidcalendarexception-couldn-t-parse-icalendar-object for example), I would have realised earlier that the creation failed.

    Even worse: All events created in the same calender after the previously mentioned won’t get synced, either.

    I deleted the event, so I am unfortunately not able to recreate this issue. My main proposal is however to output all kinds of exceptions if possible, or at least make it an option, so that people get aware of problems.

    Cheers and thanks for the great work,
    Schiri


  • developer

    Hello, DAVx⁵ normally shows exception for HTTP errors (except some soft I/O errors). Are you sure that you haven’t turned of DAVx⁵ exception somewhen?



  • Yep, I triple-checked. 😕 I did not touch any notification settings related to DAVx5.


  • developer

    I see. No idea then, it should cause a notification.



  • Yes, I see it should have. Will get back to this thread whenever I experience something similar.


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