Android: Nextcloud App crashes on android

[rainer042]

Steps to reproduce

1. Start downloding a file from your nextcloud. App crashes.
2. Possibly an invalid cert could cause this problem. Browsing the directory hierarchies does work but downloading a file does not.
3.

Environment data

Android version:9

Device model: S8

Stock or customized system:

Nextcloud app version:
3.10

*** CAUSE OF ERROR ***

javax.net.ssl.SSLPeerUnverifiedException: Hostname owncloud.fritz.box not verified:
certificate: sha256/aMkcz+3MsJPJhiMiYOf1199DcZNSj9Ava/m3JRoqVmQ=
DN: CN=.......
subjectAltNames:
at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:334)
at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:284)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:169)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:258)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:127)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:257)
at okhttp3.RealCall.execute(RealCall.java:93)
at com.nextcloud.common.OkHttpMethodBase.execute(OkHttpMethodBase.kt:126)
at com.nextcloud.common.NextcloudClient.execute(NextcloudClient.kt:67)
at com.owncloud.android.lib.resources.activities.GetActivitiesRemoteOperation.run(GetActivitiesRemoteOperation.java:131)
at com.nextcloud.common.NextcloudClient.execute(NextcloudClient.kt:63)
at com.owncloud.android.ui.fragment.FileDetailActivitiesFragment.lambda$fetchAndSetData$5$FileDetailActivitiesFragment(FileDetailActivitiesFragment.java:331)
at com.owncloud.android.ui.fragment.-$$Lambda$FileDetailActivitiesFragment$N7POe6TZvoGcuV2qP-niPxY_7t4.run(Unknown Source:12)
at java.lang.Thread.run(Thread.java:764)

*** APP INFORMATION ***
ID: com.nextcloud.client
Version: 30100090
Build flavor: gplay

*** DEVICE INFORMATION ***
Brand: samsung
Device: dreamlte
Model: SM-G950F
Id: PPR1.180610.011
Product: dreamltexx

*** FIRMWARE ***
SDK: 28
Release: 9
Incremental: G950FXXS6DSL2

[DragonQ]

I have also had this error when trying to view directory details.

[tobiasKaminsky]

Can you try out our dev version (you can install it in parallel) and give us feedback:
https://github.com/nextcloud/android/blob/master/CONTRIBUTING.md#developement-release

[rainer042]

I tried the dev version: I tried to to download the same file that did not work with current stable android version which however now worked with the dev version. So it seems that this bug is fixed now.