Disable send button if the user has no apps

[ErSauravAdhikari]

In the push message tab, on a new gotify server, that has no app set up. When you press the push message, with other fields filled,The app Freezes.

Method to replicate:

1. Create a new gotify server (Or use one that has no apps setup).
2. Connect via a client android app.
3. Go to Push Message tab
   
4. Then write down the title and content fields and press this button. (There is not app there)
   
5. Freeze your android app. (Happens automatically 😊😊)

[ErSauravAdhikari]

Here is whatever I could copy from the logs.

Saurav Adhikari, [25.06.21 14:35]
2021-06-25T08:49:29.917Z INFO: Entering LogsActivity
2021-06-25T08:49:27.397Z INFO: Loading more messages for -1
2021-06-25T08:49:27.335Z INFO: Entering MessagesActivity
2021-06-25T08:49:27.163Z INFO: Server version: 2.0.22@2021-04-16-18:16:19
2021-06-25T08:49:26.178Z INFO: WebSocket(1): opened
2021-06-25T08:49:25.541Z INFO: WebSocket(1): starting...
2021-06-25T08:49:25.523Z INFO: Starting WebSocketService
2021-06-25T08:49:25.516Z INFO: Create WebSocketService
2021-06-25T08:49:25.506Z INFO: Authenticated as admin
2021-06-25T08:49:23.272Z INFO: Entering InitializationActivity
2021-06-25T04:51:21.174Z INFO: Entering ShareActivity
2021-06-25T04:51:09.497Z INFO: Entering ShareActivity
2021-06-25T04:51:05.782Z INFO: Loading more messages for -1
2021-06-25T04:51:05.732Z INFO: Entering MessagesActivity
2021-06-25T04:51:05.620Z INFO: WebSocket(1): opened
2021-06-25T04:51:05.571Z INFO: Server version: 2.0.22@2021-04-16-18:16:19
2021-06-25T04:51:05.032Z INFO: WebSocket(1): starting...
2021-06-25T04:51:05.016Z INFO: Starting WebSocketService
2021-06-25T04:51:05.009Z INFO: Create WebSocketService
2021-06-25T04:51:05.001Z INFO: Authenticated as admin
2021-06-25T04:51:03.790Z INFO: Entering InitializationActivity
2021-06-25T04:49:06.521Z ERROR: uncaught exception
java.lang.ArrayIndexOutOfBoundsException: length=0; index=-1
 at java.util.ArrayList.get(ArrayList.java:439)
 at com.github.gotify.sharing.ShareActivity.pushMessage(ShareActivity.java:109)
 at com.github.gotify.sharing.ShareActivity_ViewBinding$1.doClick(ShareActivity_ViewBinding.java:40)
 at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:26)
 at android.view.View.performClick(View.java:6392)
 at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1119)
 at android.view.View$PerformClick.run(View.java:25133)
 at android.os.Handler.handleCallback(Handler.java:790)
 at android.os.Handler.dispatchMessage(Handler.java:99)
 at android.os.Looper.loop(Looper.java:198)
 at android.app.ActivityThread.main(ActivityThread.java:7055)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:523)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)

2021-06-25T04:48:46.595Z INFO: Entering ShareActivity
2021-06-25T04:48:44.093Z INFO: Loading more messages for -1
2021-06-25T04:48:44.043Z INFO: Entering MessagesActivity
2021-06-25T04:48:43.893Z INFO: Server version: 2.0.22@2021-04-16-18:16:19
2021-06-25T04:48:43.877Z INFO: WebSocket(1): opened
2021-06-25T04:48:43.295Z INFO: WebSocket(1): starting...
2021-06-25T04:48:43.278Z INFO: Starting WebSocketService
2021-06-25T04:48:43.270Z INFO: Create WebSocketService
2021-06-25T04:48:43.261Z INFO: Authenticated as admin
2021-06-25T04:48:42.576Z INFO: Entering InitializationActivity
2021-06-25T04:45:54.417Z ERROR: uncaught exception
java.lang.ArrayIndexOutOfBoundsException: length=0; index=-1
 at java.util.ArrayList.get(ArrayList.java:439)
 at com.github.gotify.sharing.ShareActivity.pushMessage(ShareActivity.java:109)
 at com.github.gotify.sharing.ShareActivity_ViewBinding$1.doClick(ShareActivity_ViewBinding.java:40)
 at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:26)
 at android.view.View.performClick(View.java:6392)
 at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1119)
 at android.view.View$PerformClick.run(View.java:25133)
 at android.os.Handler.handleCallback(Handler.java:790)
 at android.os.Handler.dispatchMessage(Handler.java:99)
 at android.os.Looper.loop(Looper.java:198)
 at android.app.ActivityThread.main(ActivityThread.java:7055)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:523)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)

Saurav Adhikari, [25.06.21 14:35]
2021-06-25T04:45:46.765Z INFO: Entering ShareActivity
2021-06-25T04:45:44.335Z INFO: Loading more messages for -1
2021-06-25T04:45:44.288Z INFO: Entering MessagesActivity
2021-06-25T04:45:44.173Z INFO: WebSocket(1): opened
2021-06-25T04:45:44.134Z INFO: Server version: 2.0.22@2021-04-16-18:16:19
2021-06-25T04:45:43.594Z INFO: WebSocket(1): starting...
2021-06-25T04:45:43.576Z INFO: Starting WebSocketService
2021-06-25T04:45:43.568Z INFO: Create WebSocketService
2021-06-25T04:45:43.558Z INFO: Authenticated as admin
2021-06-25T04:45:42.928Z INFO: Entering InitializationActivity
2021-06-25T04:45:27.289Z ERROR: uncaught exception
java.lang.ArrayIndexOutOfBoundsException: length=0; index=-1
 at java.util.ArrayList.get(ArrayList.java:439)
 at com.github.gotify.sharing.ShareActivity.pushMessage(ShareActivity.java:109)
 at com.github.gotify.sharing.ShareActivity_ViewBinding$1.doClick(ShareActivity_ViewBinding.java:40)
 at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:26)
 at android.view.View.performClick(View.java:6392)
 at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1119)
 at android.view.View$PerformClick.run(View.java:25133)
 at android.os.Handler.handleCallback(Handler.java:790)
 at android.os.Handler.dispatchMessage(Handler.java:99)
 at android.os.Looper.loop(Looper.java:198)
 at android.app.ActivityThread.main(ActivityThread.java:7055)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:523)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)

2021-06-25T04:45:17.182Z INFO: Entering ShareActivity
2021-06-25T04:45:14.136Z INFO: Loading more messages for -1
2021-06-25T04:45:14.085Z INFO: Entering MessagesActivity
2021-06-25T04:45:14.034Z INFO: WebSocket(1): opened
2021-06-25T04:45:13.956Z INFO: Server version: 2.0.22@2021-04-16-18:16:19
2021-06-25T04:45:13.427Z INFO: WebSocket(1): starting...
2021-06-25T04:45:13.403Z INFO: Starting WebSocketService
2021-06-25T04:45:13.389Z INFO: Create WebSocketService
2021-06-25T04:45:13.370Z INFO: Authenticated as admin
2021-06-25T04:45:12.736Z INFO: Entering InitializationActivity
2021-06-25T04:44:40.861Z INFO: Entering LoginActivity
2021-06-25T04:44:39.420Z ERROR: Error while api call
Code(0) Response: 
 at com.github.gotify.api.Callback$RetrofitCallback.onFailure(Callback.java:80)
 at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$2.run(ExecutorCallAdapterFactory.java:80)
 at android.os.Handler.handleCallback(Handler.java:790)
 at android.os.Handler.dispatchMessage(Handler.java:99)
 at android.os.Looper.loop(Looper.java:198)
 at android.app.ActivityThread.main(ActivityThread.java:7055)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:523)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:836)
Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
 at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:219)
 at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:319)
 at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:283)
 at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:168)
 at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257)
 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)

Saurav Adhikari, [25.06.21 14:35]
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:126)
 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
 at com.github.gotify.client.auth.ApiKeyAuth.intercept(ApiKeyAuth.java:66)
 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
 at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:254)
 at okhttp3.RealCall$AsyncCall.execute(RealCall.java:200)
 at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
 at java.lang.Thread.run(Thread.java:764)
Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
 at com.android.org.conscrypt.TrustManagerImpl.verifyChain(TrustManagerImpl.java:661)
 at com.android.org.conscrypt.TrustManagerImpl.checkTrustedRecursive(TrustManagerImpl.java:539)
 at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:495)
 at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:418)
 at com.android.org.conscrypt.TrustManagerImpl.getTrustedChainForServer(TrustManagerImpl.java:339)
 at android.security.net.config.NetworkSecurityTrustManager.checkServerTrusted(NetworkSecurityTrustManager.java:94)
 at android.security.net.config.RootTrustManager.checkServerTrusted(RootTrustManager.java:88)
 at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:197)
 at com.android.org.conscrypt.ConscryptFileDescriptorSocket.verifyCertificateChain(ConscryptFileDescriptorSocket.java:399)
 at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
 at com.android.org.conscrypt.SslWrapper.doHandshake(SslWrapper.java:374)
 at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:217)
 ... 26 more
Caused by: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.

[jmattheis]

Jip, you need apps to send messages. The send button should probably be disabled, if the user has no apps.