Android Question GetStaticField Error

[wineos]

Hi,

Is there anyone who can tell me how to fix the error?

Logger connected to:  asus Nexus 7
--------- beginning of main
Copying updated assets files (2)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 108 (Main)
java.lang.IllegalArgumentException: java.security.spec.InvalidKeySpecException: java.lang.RuntimeException: error:0c074079:ASN.1 encoding routines:ASN1_get_object:HEADER_TOO_LONG
    at com.android.vending.licensing.LicenseChecker.generatePublicKey(LicenseChecker.java:121)
    at com.android.vending.licensing.LicenseChecker.<init>(LicenseChecker.java:92)
    at anywheresoftware.b4a.objects.LicenseCheckerWrapper.Initialize(LicenseCheckerWrapper.java:42)
    at net.wineos.android.counsellor.main._activity_create(main.java:428)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
    at net.wineos.android.counsellor.main.afterFirstLayout(main.java:105)
    at net.wineos.android.counsellor.main.access$000(main.java:17)
    at net.wineos.android.counsellor.main$WaitForLayout.run(main.java:83)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.security.spec.InvalidKeySpecException: java.lang.RuntimeException: error:0c074079:ASN.1 encoding routines:ASN1_get_object:HEADER_TOO_LONG
    at com.android.org.conscrypt.OpenSSLKey.getPublicKey(OpenSSLKey.java:250)
    at com.android.org.conscrypt.OpenSSLRSAKeyFactory.engineGeneratePublic(OpenSSLRSAKeyFactory.java:47)
    at java.security.KeyFactory.generatePublic(KeyFactory.java:172)
    at com.android.vending.licensing.LicenseChecker.generatePublicKey(LicenseChecker.java:112)
    ... 19 more
Caused by: java.lang.RuntimeException: error:0c074079:ASN.1 encoding routines:ASN1_get_object:HEADER_TOO_LONG
    at com.android.org.conscrypt.NativeCrypto.d2i_PUBKEY(Native Method)
    at com.android.org.conscrypt.OpenSSLKey.getPublicKey(OpenSSLKey.java:248)
    ... 22 more
** Activity (main) Resume **

Here is my code:

Private Sub GetDeviceId() As String

    Dim r As Reflector
    Dim Api As Int
  
    Api = r.GetStaticField("android.os.Build$VERSION", "SDK_INT")
  
    If Api < 9 Then
        'Old device
        If File.Exists(File.DirInternal, "__id") Then
            Return File.ReadString(File.DirInternal, "__id")
        Else
            Dim id As Int
            id = Rnd(0x10000000, 0x7FFFFFFF)
            File.WriteString(File.DirInternal, "__id", id)
            Return id
        End If
    Else
        'New device
        Return r.GetStaticField("android.os.Build", "SERIAL")
    End If
  
End Sub

 

[stevel05]

Not sure what you are trying to do, but on first look you haven't set the target for the reflector object.

 

[wineos]

Thank you stevel05. I post the full code here.

Sub Activity_Create(FirstTime As Boolean)

    Dim lc As LicenseChecker
    
    Activity.LoadLayout("main")
        
    lc.Initialize("lc", GetDeviceId, publicKey, encryptKey.GetBytes("UTF8"))
    lc.SetVariableAndValue("mindful_counsellor", successKey)
    lc.CheckAccess
    
End Sub


Private Sub GetDeviceId() As String

    Dim r As Reflector
    Dim Api As Int
  
    Api = r.GetStaticField("android.os.Build$VERSION", "SDK_INT")
  
    If Api < 9 Then
        'Old device
        If File.Exists(File.DirInternal, "__id") Then
            Return File.ReadString(File.DirInternal, "__id")
        Else
            Dim id As Int
            id = Rnd(0x10000000, 0x7FFFFFFF)
            File.WriteString(File.DirInternal, "__id", id)
            Return id
        End If
    Else
        'New device
        Return r.GetStaticField("android.os.Build", "SERIAL")
    End If
  
End Sub

Sub lc_Allow()
    
End Sub

Sub lc_DontAllow()
    
    ToastMessageShow("未經許可使用，應用程式終止！", True)
    'Activity.Finish
    
End Sub

Sub lc_Error(ErrorCode As String)

    ToastMessageShow(ErrorCode & " : " & "程式錯誤，應用程式終止！", True)
    'Activity.Finish
    
End Sub

 

[stevel05]

 Dim r As Reflector
    Dim Api As Int
    r.Target = ?          '<- you are missing this assignment
    Api = r.GetStaticField("android.os.Build$VERSION", "SDK_INT")

 

[stevel05]

you need to tell the reflector where to get the static field from.

 

[stevel05]

Sorry my mistake, code looks OK and may not be related.

 

[stevel05]

Try

Api = r.GetStaticField("android.os.Build.VERSION", "SDK_INT")

 

[stevel05]

I just had to set up my test environment, clean install of windows.

The get deviceID sub works OK for me as you had it but I cant test the licence checker, but it appears that is where the issue is.

 

[wineos]

Still can't. Any idea?

 

[stevel05]

No sorry, I've never used it. I'm sure someone will have an idea.

 

[udg]

Could be because "SERIAL" is deprecated since Api 26?

 

[Erel]

Use this id: https://www.b4x.com/android/forum/threads/get-unique-id-for-user.124396/post-776882