B4J Question First push to IOS causes always a java.net.SocketException:

[schimanski]

I'm using a variation of Erel's B4X-Push-Server. The first push to an ios-device causes the following exception and the push-message doesn't arrive on the iphone. After the reconnect, it is no problem to push the device, but even, if i wait an hour or something, the exception raised against with the first push. What is the reason for that? I'm using the sandbox.

2015-10-12 18:52:08,642 [qtp1712669532-3054] TRACE  - Datei auf dem EIS-Server e
ingegangen:EIS/Kontakte/iPhone6/1444668732258.Stammi.txt
2015-10-12 18:52:08,642 [main] DEBUG  - 1 IOS-Device pushed!
java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(Unknown Source)
        at java.net.SocketInputStream.read(Unknown Source)
        at sun.security.ssl.InputRecord.readFully(Unknown Source)
        at sun.security.ssl.InputRecord.read(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
        at sun.security.ssl.AppInputStream.read(Unknown Source)
        at java.io.InputStream.read(Unknown Source)
        at anywheresoftware.b4a.randomaccessfile.AsyncStreams$AIN.run(AsyncStrea
ms.java:184)
        at java.lang.Thread.run(Unknown Source)
2015-10-12 18:52:08,896 [main] ERROR  - Fehler: java.net.SocketException: Connec
tion reset
2015-10-12 18:52:08,896 [main] INFO   - Try to reconnect!.
..
java.lang.UnsupportedOperationException: The method shutdownInput() is not suppo
rted in SSLSocket
        at sun.security.ssl.BaseSSLSocketImpl.shutdownInput(Unknown Source)
        at anywheresoftware.b4a.objects.SocketWrapper.Close(SocketWrapper.java:1
88)
        at de.sekutor.eisserver.iospush._vvvvvvvvvvv2(iospush.java:92)
        at de.sekutor.eisserver.iospush._timer1_tick(iospush.java:238)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
        at anywheresoftware.b4a.BA$3.run(BA.java:178)
        at anywheresoftware.b4a.keywords.SimpleMessageLoop.runMessageLoop(Simple
MessageLoop.java:30)
        at anywheresoftware.b4a.StandardBA.startMessageLoop(StandardBA.java:26)
        at anywheresoftware.b4a.keywords.Common.StartMessageLoop(Common.java:131
)
        at de.sekutor.eisserver.main._appstart(main.java:175)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
        at anywheresoftware.b4a.BA.raiseEvent(BA.java:84)
        at de.sekutor.eisserver.main.main(main.java:29)
2015-10-12 18:52:12,930 [main] INFO   - Mit IOS-Push-Socket verbunden!

 

[Erel]

It might be related to the sandbox servers, though I don't see these errors (in the past there were other "strange" connection problems).

Are you sure that you are not trying to send a message to an invalid token?

 

[schimanski]

You are right, Erel! the most of the exception were from an invalid token, thanks for that. But the problem is the same. After sending the first message, i always get an

10/13/2015 08:56:43: 2015-10-13 08:54:56,741 [main] ERROR  - Fehler: java.net.SocketException: Connection reset

and the push doesn't arrives. After the reconnect, everything runs fine until I wait again some time.

I can't understand, why the timer doesn't reconnects the connection form time to time. It seems, that the _terminated event will not be raised and after the first push, the _error event is raised and starts a reconnect...

Private Sub Connect
    Try
        If sock.IsInitialized Then sock.Close
        Dim sock As Socket
        sock.InitializeSSL("sock", File.OpenInput(Main.iPushKeystore, ""), Main.iPushKeystorePassword)
        sock.Connect(Main.iGateway, Main.iGateWayPort, 30000)
    Catch
        Main.Logger.logsERROR("Fehler beim Push-Connect:" & LastException.Message)
    End Try
End Sub

Private Sub sock_Connected (Successful As Boolean)
    If Successful Then
        timer1.Enabled = False
        Main.Logger.logsINFO("Mit IOS-Push-Socket verbunden!")
        If astream.IsInitialized Then astream.Close
        astream.Initialize(sock.InputStream, sock.OutputStream, "astream")
    Else
        Main.Logger.logsWARN("Fehler Verbindungsaufbau IOS-Push-Socket: " & LastException.Message)
        Reconnect
    End If
End Sub

Private Sub Reconnect
    Main.Logger.logsINFO("Versuche Verbindung wieder herzustellen...")
    timer1.Enabled = True
End Sub

Private Sub Timer1_Tick
    timer1.Enabled = False
    Connect
End Sub

Private Sub astream_NewData (Buffer() As Byte)
    If Buffer.Length >=6 Then
        Main.Logger.logsDEBUG("Status=" & Buffer(1))
    Else
        Main.Logger.logsDEBUG("Invalid response")
    End If
End Sub
Private Sub astream_Error
    Main.Logger.logsERROR("Fehler: " & LastException.Message)
    Reconnect
End Sub
Private Sub astream_Terminated
    Main.Logger.logsWARN("unterbrochen")
    Reconnect
End Sub

 

[Erel]

Clear the tokens database and try again (you can delete the database files).

 

[schimanski]

I have checked the tokens database, everything ok. Is it possible, that in sandbox the terminated-event doesn't raises?

 

[Erel]

You are the first to encounter this issue so it is hard to say. It is worth testing it with the production servers.

 

[schimanski]

I made an adhoc-certificate to test it with the production-servers. After exactly 5 minutes and 30 seconds don't sending a message, i got again the following exception, only with the first push...I don't have an idea...

java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(SocketInputStream.java:209)
    at java.net.SocketInputStream.read(SocketInputStream.java:141)
    at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
    at sun.security.ssl.InputRecord.read(InputRecord.java:503)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
    at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930)
    at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
    at java.io.InputStream.read(InputStream.java:101)
    at anywheresoftware.b4a.randomaccessfile.AsyncStreams$AIN.run(AsyncStreams.java:184)
    at java.lang.Thread.run(Thread.java:745)
2015-10-14 11:25:51,302 [main] ERROR  - Fehler: java.net.SocketException: Connection reset
2015-10-14 11:25:51,302 [main] INFO   - Versuche Verbindung wieder herzustellen...
java.lang.UnsupportedOperationException: The method shutdownInput() is not supported in SSLSocket
    at sun.security.ssl.BaseSSLSocketImpl.shutdownInput(BaseSSLSocketImpl.java:215)
    at anywheresoftware.b4a.objects.SocketWrapper.Close(SocketWrapper.java:188)
    at de.sekutor.eisserver.iospush._connect(iospush.java:144)
    at de.sekutor.eisserver.iospush._timer1_tick(iospush.java:325)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:563)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:221)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:156)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:82)
    at anywheresoftware.b4a.BA$3.run(BA.java:178)
    at anywheresoftware.b4a.keywords.SimpleMessageLoop.runMessageLoop(SimpleMessageLoop.java:30)
    at anywheresoftware.b4a.StandardBA.startMessageLoop(StandardBA.java:26)
    at anywheresoftware.b4a.ShellBA.startMessageLoop(ShellBA.java:103)
    at anywheresoftware.b4a.keywords.Common.StartMessageLoop(Common.java:131)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:292)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:156)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:82)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:84)
    at de.sekutor.eisserver.main.main(main.java:29)
2015-10-14 11:25:55,200 [main] INFO   - Mit IOS-Push-Socket verbunden!

 

[Erel]

Did the push message fail because of this exception?

 

[schimanski]

Yes...

 

[Erel]

You will need to catch this error and try to resend the message.

 

[schimanski]

Good idea!!!