We Keep Coding

Android Root Check fails on samsung tab while executin /system/bin/which su

I have followed the link Determining if an Android device is rooted programmatically?
to have a check if the application is running on a rooted android device. For some devices and emulator its working fine but for my new Samsung tablet, it's failing.
Runtime.getRuntime().exec("/system/bin/which su ");
After executingg the above line it returns true.
thanks

Try This
public class RootUtil {
private static final String TAG = "RootUtil";
public static boolean isDeviceRooted() {
return checkRootMethod1() || checkRootMethod2() || checkRootMethod3();
}
private static boolean checkRootMethod1() {
String buildTags = android.os.Build.TAGS;
return buildTags != null && buildTags.contains("test-keys");
}
private static boolean checkRootMethod2() {
String[] paths = {"/system/app/Superuser.apk", "/sbin/su", "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su", "/data/local/bin/su", "/system/sd/xbin/su",
"/system/bin/failsafe/su", "/data/local/su", "/su/bin/su"};
for (String path : paths) {
if (new File(path).exists()) return true;
}
return false;
}
private static boolean checkRootMethod3() {
Process process = null;
try {
process = Runtime.getRuntime().exec(new String[]{"/system/xbin/which", "su"});
BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
return in.readLine() != null;
} catch (Throwable t) {
return false;
} finally {
if (process != null) process.destroy();
}
}
public static boolean isDeviceRootedV2() {
try {
Runtime.getRuntime().exec("su");
return true;
} catch (IOException e) {
Log.e(TAG, "isDeviceRootedV2: " + e.getMessage());
return false;
}
}
}

JSP - Running a program with main method and nested static class

I'm a novice when it comes to JSPs and JAVA.
How do I get the output from the below code to display on a jsp, considering that it runs everything from the main and contains non-public methods, a nested static class etc?
I know that we are not supposed to use java code on jsp but my first step in this proof on concept exercise is to get the code running and returning data from a backend then I can set about using EL etc.
I can run the program, with the correct config settings, from within Eclipse and all works fine with the output appearing on the console but I'm really not sure how to access it from within a jsp.
How do I access the static class and static methods from a jsp if they aren't public?
All help greatly appreciated.
public class CustomDestinationDataProvider
{
static class MyDestinationDataProvider implements DestinationDataProvider
{
private DestinationDataEventListener eL;
private HashMap<String, Properties> secureDBStorage = new HashMap<String, Properties>();
public Properties getDestinationProperties(String destinationName)
{
try
{
//read the destination from DB
Properties p = secureDBStorage.get(destinationName);
if(p!=null)
{
//check if all is correct, for example
if(p.isEmpty())
throw new DataProviderException(DataProviderException.Reason.INVALID_CONFIGURATION, "destination configuration is incorrect", null);
return p;
}
return null;
}
catch(RuntimeException re)
{
throw new DataProviderException(DataProviderException.Reason.INTERNAL_ERROR, re);
}
}
public void setDestinationDataEventListener(DestinationDataEventListener eventListener)
{
this.eL = eventListener;
}
public boolean supportsEvents()
{
return true;
}
//implementation that saves the properties in a very secure way
void changeProperties(String destName, Properties properties)
{
synchronized(secureDBStorage)
{
if(properties==null)
{
if(secureDBStorage.remove(destName)!=null)
eL.deleted(destName);
}
else
{
secureDBStorage.put(destName, properties);
eL.updated(destName); // create or updated
}
}
}
} // end of MyDestinationDataProvider
//business logic
void executeCalls(String destName)
{
JCoDestination dest;
try
{
dest = JCoDestinationManager.getDestination(destName);
dest.ping();
System.out.println("Destination " + destName + " works");
step4WorkWithTable(dest);
}
catch(JCoException e)
{
e.printStackTrace();
System.out.println("Execution on destination " + destName+ " failed");
}
}
static Properties getDestinationPropertiesFromUI()
{
//adapt parameters in order to configure a valid destination
Properties connectProperties = new Properties();
// Add code here to set config settings
return connectProperties;
}
public static void main(String[] args)
{
MyDestinationDataProvider myProvider = new MyDestinationDataProvider();
//register the provider with the JCo environment;
//catch IllegalStateException if an instance is already registered
try
{
com.sap.conn.jco.ext.Environment.registerDestinationDataProvider(myProvider);
}
catch(IllegalStateException providerAlreadyRegisteredException)
{
//somebody else registered its implementation,
//stop the execution
throw new Error(providerAlreadyRegisteredException);
}
String destName = "????";
CustomDestinationDataProvider test = new CustomDestinationDataProvider();
//set properties for the destination and ...
myProvider.changeProperties(destName, getDestinationPropertiesFromUI());
//... work with it
test.executeCalls(destName);
}
public static void step4WorkWithTable(JCoDestination dest) throws JCoException
{
JCoFunction function = dest.getRepository().getFunction("BAPI_COMPANYCODE_GETLIST");
if(function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETLIST not found in SAP.");
try
{
function.execute(dest);
}
catch(AbapException e)
{
System.out.println(e.toString());
return;
}
JCoStructure returnStructure = function.getExportParameterList().getStructure("RETURN");
if (! (returnStructure.getString("TYPE").equals("")||returnStructure.getString("TYPE").equals("S")) )
{
throw new RuntimeException(returnStructure.getString("MESSAGE"));
}
JCoTable codes = function.getTableParameterList().getTable("COMPANYCODE_LIST");
for (int i = 0; i < codes.getNumRows(); i++)
{
codes.setRow(i);
System.out.println(codes.getString("COMP_CODE") + '\t' + codes.getString("COMP_NAME"));
}
//move the table cursor to first row
codes.firstRow();
for (int i = 0; i < codes.getNumRows(); i++, codes.nextRow())
{
function = dest.getRepository().getFunction("BAPI_COMPANYCODE_GETDETAIL");
if (function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETDETAIL not found in SAP.");
function.getImportParameterList().setValue("COMPANYCODEID", codes.getString("COMP_CODE"));
//We do not need the addresses, so set the corresponding parameter to inactive.
//Inactive parameters will be either not generated or at least converted.
function.getExportParameterList().setActive("COMPANYCODE_ADDRESS",false);
try
{
function.execute(dest);
}
catch (AbapException e)
{
System.out.println(e.toString());
return;
}
returnStructure = function.getExportParameterList().getStructure("RETURN");
if (! (returnStructure.getString("TYPE").equals("") ||
returnStructure.getString("TYPE").equals("S") ||
returnStructure.getString("TYPE").equals("W")) )
{
throw new RuntimeException(returnStructure.getString("MESSAGE"));
}
JCoStructure detail = function.getExportParameterList().getStructure("COMPANYCODE_DETAIL");
System.out.println(detail.getString("COMP_CODE") + '\t' +
detail.getString("COUNTRY") + '\t' +
detail.getString("CITY"));
}//for
}
}

Java environment-specific properties WITHOUT Spring

Spring has made it so incredibly easy to set up application properties...but how would you do it without Spring?
I need to deploy a Java / Groovy application to a server where using Spring is out of the question... and I also don't have the liberty to install anything like Redis either. One option I am considering is to set up a Spring Cloud Config Server elsewhere and have my application consume properties from the config server. Trouble is, that is a bit of an overkill for my project now.
Could anyone suggest a way to do this in good, old, plain Java? :)

This is a really simple and basic example, but you can modify it as you like:
PropertyConfigurator.java
public class PropertiesConfigurator
{
Properties properties = new Properties();
String configInputPath = null;
InputStream configInputStream = null;
public PropertiesConfigurator(String configInputPath)
{
this.configInputPath = configInputPath;
}
public PropertiesConfigurator load() throws IOException, PropertyException
{
try
{
this.configInputStream = new FileInputStream(this.configInputPath);
// load a properties file
this.properties.load(this.configInputStream);
validate();
}
catch (IOException ex)
{
System.out.println("Failed load properties file: " + this.configInputPath);
throw ex;
}
catch (PropertyException ex)
{
System.out.println("One or more properties are empty");
throw ex;
}
finally
{
if (this.configInputStream != null)
{
try
{
this.configInputStream.close();
}
catch (IOException ex)
{
System.out.println("Failed to close input stream");
throw ex;
}
}
}
return this;
}
private void validate() throws PropertyException
{
Enumeration<?> e = this.properties.propertyNames();
while (e.hasMoreElements())
{
String key = (String) e.nextElement();
String value = this.properties.getProperty(key);
if (value.isEmpty())
{
System.out.println(String.format("Property %s is empty!", key));
throw new PropertyException("One or more properties are empty");
}
}
}
public String getProperty(String key)
{
return this.properties.getProperty(key);
}
#Override
public boolean equals(Object o)
{
if (this == o)
return true;
if (!(o instanceof PropertiesConfigurator))
return false;
PropertiesConfigurator that = (PropertiesConfigurator) o;
if (properties != null ? !properties.equals(that.properties) : that.properties != null)
return false;
if (configInputPath != null ? !configInputPath.equals(that.configInputPath) : that.configInputPath != null)
return false;
return configInputStream != null ?
configInputStream.equals(that.configInputStream) :
that.configInputStream == null;
}
#Override
public int hashCode()
{
int result = properties != null ? properties.hashCode() : 0;
result = 31 * result + (configInputPath != null ? configInputPath.hashCode() : 0);
result = 31 * result + (configInputStream != null ? configInputStream.hashCode() : 0);
return result;
}
}
PropertyException.java
public class PropertyException extends Exception
{
public PropertyException()
{
}
public PropertyException(String message)
{
super(message);
}
public PropertyException(String message, Throwable throwable)
{
super(message, throwable);
}
}
MainRunner.java
public class MainRunner
{
public static void main(String[] args)
{
try
{
String configFilePath = "application.properties";
PropertiesConfigurator propertiesConfigurator = new PropertiesConfigurator(configFilePath).load();
String prop1 = propertiesConfigurator.getProperty("keyprop1");
// Do whatever you want with prop1
// ...
}
catch (PropertyException ex)
{
System.out.println("Failed to load properties");
System.exit(1);
}
catch (Exception ex)
{
System.out.println("Error in main application");
System.exit(1);
}
}
}
Example of application.properties
keyprop1=value1
keyprop2=value2
Again, it's very basic and you should definitely improve this code and add your logic, validation, etc.

Take a look at http://constretto.org. That's easy to use configuration framework.

Mac file/dir creation problems with Java

I have been writing a program for a group of Minecrafters and their Modpack, the program is a custom launcher. The problem is when Mac-OSX users try using the program it has problems with making its folder in /Users/<username>/Library/Application Support/.melbvicminecraft/, I know it is a permissions problem, but I want to find a way to let them use the application without the need for them to have root permissions.
Main.java:
public static File getMinecraftDir()
{
String os = getOS();
String userHome = System.getProperty("user.home", ".");
if(os == "win")
{
String appdata = System.getenv("APPDATA");
String location = appdata != null ? appdata : userHome;
return new File(location);
}
else if(os == "mac")
{
return new File(userHome, "Library/Application Support/");
}
else
return new File(userHome);
}
MinecraftLoginThread.java:
/**
* Make a new Minecraft login handler with the selected dir
*
* #param settings Settings file located on the <strong>server</strong>
* #param server The content server
* #param minecraftDir minecraftDir The selected Minecraft dir
*/
public MinecraftLoginThread(SettingsFile settings, String server, File minecraftDir)
{
try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
}
catch (Exception e)
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch(Exception e1)
{
e1.printStackTrace();
}
}
try
{
Main.logger.debug("Minecraft dir: " + minecraftDir.getAbsolutePath());
Main.logger.debug("Minecraft exists: " + minecraftDir.exists());
if(!minecraftDir.exists())
{
try
{
minecraftDir.setWritable(true);
minecraftDir.setReadable(true);
if(minecraftDir.mkdirs())
Main.logger.debug("Made new Minecraft dir: " + minecraftDir.getAbsolutePath());
else
Main.killError("Failed to make new Minecraft dir!");
}
catch (Exception e) { Main.killError(e.toString()); }
}
if(!(new File(minecraftDir, "lastLogin").exists()))
(new File(minecraftDir, "lastLogin")).createNewFile();
this.lastLogin = new SettingsFile((new File(minecraftDir, "lastLogin")));
this.lastLogin.load();
}
catch(Exception e)
{
e.printStackTrace();
}
this.settings = settings;
this.server = server;
this.backgroundManager = new BackgroundManager(server + settings.getSetting("net.melbvicmc.launcher.mlbl"));
this.mcDir = minecraftDir;
this.optionsDialog = new MinecraftOptionsDialog(this);
loadJFrameLayout();
}
Here is the log from a mac: The log
The application can be found here: Launcher Download

getSnapshot not supported on Blackberry

I'm having problem when taking a picture using VideoControl.getSnapshot() method. It always throw the exception: getSnapshot not Supported. I'm using JRE 5.0.0 with Eclipse and BlackBerry® Java® SDK 5.0 Plugin.
What I do first is to list the encoding supported by Blackberry SmartPhone selected (bold 9700) with the command System.getProperty("video.snapshot.encodings") and select one encoding from the list and pass it as the getSnapshot argument.
I've tested on several Blackberry and the same exception is thrown.
Part of the code:
mPlayer = Manager.createPlayer("capture://video?encoding=video/3gpp");
mPlayer.realize();
mPlayer = Manager.createPlayer("capture://video?encoding=video/3gpp");
mPlayer.start();
videoControl = (VideoControl)mPlayer.getControl("VideoControl");
Field cameraView = (Field) videoControl.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, "net.rim.device.api.ui.Field");
Thread.sleep(1000);
UiApplication.getUiApplication().pushScreen(new TempScreen(cameraView));
byte[] snapShot = videoControl.getSnapshot("encoding=jpeg&width=480&height=360&quality=superfine");
Bitmap image = Bitmap.createBitmapFromBytes(snapShot, 0, snapShot.length, 1);
UiApplication.getUiApplication().pushScreen(new TempScreen(image));
}catch (MediaException e){
UiApplication.getUiApplication().pushScreen(new TempScreen("Exception: " + e.getMessage())); }
catch (IOException e){
UiApplication.getUiApplication().pushScreen(new TempScreen("IO Exception: " + e.getMessage()));
}
catch (InterruptedException e){UiApplication.getUiApplication().pushScreen(new TempScreen("Interrupted Exception: "+ e.getMessage()));}

Not sure is my answer is actual after more than a half of year, but may be it will be useful.
You may try to use Thread.sleep(1000); before getSnapshot() call.
The problem may be related with that fact: "viewfinder must actually be visible on the screen prior to calling getSnapShot()."
So if you call getSnapshot immediately after UiApplication.getUiApplication().pushScreen(new TempScreen(cameraView));
the camera isn't prepared for the next shot.
Also are you really sure that getSnapshot() API is supported exactly on your device? Some manufacturers may not support it, despite the API defines this method. Did you run System.getProperty("video.snapshot.encodings") exactly on the same device where you test getSnapshot()?

Player _p;
VideoControl _vc ;
RecordControl _rc ;
String PATH;
FileConnection fileconn;
Object canvas= new Object();
public static boolean SdcardAvailabulity() {
String root = null;
Enumeration e = FileSystemRegistry.listRoots();
while (e.hasMoreElements()) {
root = (String) e.nextElement();
if( root.equalsIgnoreCase("sdcard/") ) {
return true;
}else if( root.equalsIgnoreCase("store/") ) {
return false;
}
}
class MySDListener implements FileSystemListener {
public void rootChanged(int state, String rootName) {
if( state == ROOT_ADDED ) {
if( rootName.equalsIgnoreCase("sdcard/") ) {
}
} else if( state == ROOT_REMOVED ) {
}
}
}
return true;
}
protected boolean invokeAction(int action){
boolean handled = super.invokeAction(action);
if(SdcardAvailabulity()){
PATH = System.getProperty("fileconn.dir.memorycard.videos")+"Video_"+System.currentTimeMillis()+".3gpp";//here "str" having the current Date and Time;
} else {
PATH = System.getProperty("fileconn.dir.videos")+"Video_"+System.currentTimeMillis()+".3gpp";
}
if(!handled){
if(action == ACTION_INVOKE){
try{
if(_p!=null)
_p.close();
}catch(Exception e){
}
}
}
return handled;
}
public MyScreen(){
setTitle("Video recording demo");
ButtonField AddPhoto = new ButtonField("push",ButtonField.FOCUSABLE | ButtonField.FIELD_HCENTER | ButtonField.FIELD_VCENTER | DrawStyle.HCENTER | ButtonField.NEVER_DIRTY | Field.USE_ALL_WIDTH);
FieldChangeListener PhotoListener = new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
ButtonField Button = (ButtonField) field;
if (Button.getLabel().equals("push")){
}
}
};
AddPhoto.setChangeListener(PhotoListener);
add(AddPhoto);
}
}