Unable to export to NextCloud using SAF

[imcmjha]

Checklist

• I am using the latest version - 0.21.6
• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one bug. I will open one issue for every bug report I want to file.

Steps to reproduce the bug

1. Go to Export Database
2. Select Nextcloud menu in file.
3. Tap on SAVE button

Actual behavior

It throws the error text Sorry. Something went wrong. and stores a file with 0 byte size.

Expected behavior

The file should be exported to nextcloud.

Screenshots/Screen recordings

Logs

Exception

• User Action: ui error
• Request: Exporting database
• Content Country: IN
• Content Language: en
• App Language: en_US
• Service: none
• Version: 0.21.6
• OS: Linux Android 10 - 29

Crash log

java.io.FileNotFoundException: Error downloading file: NewPipeData-20210715_122300.zip
 at android.database.DatabaseUtils.readExceptionWithFileNotFoundExceptionFromParcel(DatabaseUtils.java:149)
 at android.content.ContentProviderProxy.openAssetFile(ContentProviderNative.java:631)
 at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1521)
 at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:1338)
 at android.content.ContentResolver.openFileDescriptor(ContentResolver.java:1286)
 at us.shandian.giga.io.FileStreamSAF.<init>(FileStreamSAF.java:32)
 at org.schabi.newpipe.streams.io.StoredFileHelper.getStream(StoredFileHelper.java:190)
 at org.schabi.newpipe.settings.ContentSettingsManager.exportDatabase(ContentSettingsManager.kt:24)
 at org.schabi.newpipe.settings.ContentSettingsFragment.exportDatabase(ContentSettingsFragment.java:200)
 at org.schabi.newpipe.settings.ContentSettingsFragment.requestExportPathResult(ContentSettingsFragment.java:170)
 at org.schabi.newpipe.settings.ContentSettingsFragment.lambda$8bBkxkdGnhK6YvPK6sE5N6ky1yA(Unknown Source:0)
 at org.schabi.newpipe.settings.-$$Lambda$ContentSettingsFragment$8bBkxkdGnhK6YvPK6sE5N6ky1yA.onActivityResult(Unknown Source:4)
 at androidx.activity.result.ActivityResultRegistry$1.onStateChanged(ActivityResultRegistry.java:148)
 at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:354)
 at androidx.lifecycle.LifecycleRegistry.forwardPass(LifecycleRegistry.java:265)
 at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:307)
 at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:148)
 at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.java:134)
 at androidx.fragment.app.Fragment.performStart(Fragment.java:3026)
 at androidx.fragment.app.FragmentStateManager.start(FragmentStateManager.java:589)
 at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:300)
 at androidx.fragment.app.FragmentStore.moveToExpectedState(FragmentStore.java:112)
 at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1647)
 at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:3128)
 at androidx.fragment.app.FragmentManager.dispatchStart(FragmentManager.java:3079)
 at androidx.fragment.app.FragmentController.dispatchStart(FragmentController.java:262)
 at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:510)
 at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:210)
 at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1432)
 at android.app.Activity.performStart(Activity.java:7848)
 at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3295)
 at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
 at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
 at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
 at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2017)
 at android.os.Handler.dispatchMessage(Handler.java:107)
 at android.os.Looper.loop(Looper.java:214)
 at android.app.ActivityThread.main(ActivityThread.java:7397)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

---

Device info

• Android version/Custom ROM version: android 10-29
• Device model: Redmi Note 5 Pro(Whyred)

[skyGtm]

since its linked with SAF.
#6701 might fix the issue.

[Stypox]

@skyGtm #6701 is completely unrelated, as it only solves a UI problem ;-)
I have no idea if this is solvable: there seems to be some issue when opening the file for writing. I do not have NextCloud so I can't check.

[Inrumpo]

I'm experiencing a similar problem:

Exporting

• subscriptions
• database

directly to a Nextcloud folder doesn't work. As a workaround I have to save those files locally and then manually move them from my phone (files) to Nextcloud.

Same goes for importing. Just the other way round.

That 0 byte database file will cause some very frustrating restoring experience. The user won't recognize the issue in time and have to redo all settings etc. manually.