private int findfd(Object fdObj) throws Exception {
Class cl;
Field f;
Object val, implVal;
if ((fdObj instanceof java.net.Socket) || (fdObj instanceof java.net.ServerSocket)) {
cl = fdObj.getClass();
f = cl.getDeclaredField("impl");
f.setAccessible(true);
val = f.get(fdObj);
cl = f.getType();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
implVal = f.get(val);
cl = f.getType();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
return ((Integer) f.get(implVal)).intValue();
} else if (fdObj instanceof java.io.FileDescriptor) {
cl = fdObj.getClass();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
return ((Integer) f.get(fdObj)).intValue();
} else {
throw new IllegalArgumentException("Illegal Object type.");
}
}
private KeyStore createKeyStore(@Nullable String path)
throws IOException, KeyStoreException, NoSuchAlgorithmException, CertificateException {
String keyStoreType = KeyStore.getDefaultType();
char[] defaultPassword = "******".toCharArray();
if (path != null) {
// If the user provided path, only try to load the keystore at that path.
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
FileInputStream is = new FileInputStream(path);
keyStore.load(is, defaultPassword);
return keyStore;
}
try {
// Check if we are on Android.
Class version = Class.forName("android.os.Build$VERSION");
// Build.VERSION_CODES.ICE_CREAM_SANDWICH is 14.
if (version.getDeclaredField("SDK_INT").getInt(version) >= 14) {
// After ICS, Android provided this nice method for loading the keystore,
// so we don't have to specify the location explicitly.
KeyStore keystore = KeyStore.getInstance("AndroidCAStore");
keystore.load(null, null);
return keystore;
} else {
keyStoreType = "BKS";
path =
System.getProperty("java.home")
+ "/etc/security/cacerts.bks".replace('/', File.separatorChar);
}
} catch (ClassNotFoundException e) {
// NOP. android.os.Build is not present, so we are not on Android. Fall through.
} catch (NoSuchFieldException e) {
throw new RuntimeException(e); // Should never happen.
} catch (IllegalAccessException e) {
throw new RuntimeException(e); // Should never happen.
}
if (path == null) {
path = System.getProperty("javax.net.ssl.trustStore");
}
if (path == null) {
// Try this default system location for Linux/Windows/OSX.
path =
System.getProperty("java.home")
+ "/lib/security/cacerts".replace('/', File.separatorChar);
}
try {
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
FileInputStream is = new FileInputStream(path);
keyStore.load(is, defaultPassword);
return keyStore;
} catch (FileNotFoundException e) {
// If we failed to find a system trust store, load our own fallback trust store. This can fail
// on Android
// but we should never reach it there.
KeyStore keyStore = KeyStore.getInstance("JKS");
InputStream is = getClass().getResourceAsStream("cacerts");
keyStore.load(is, defaultPassword);
return keyStore;
}
}
public static Field makeAccessible(Class<?> target, String fieldName) {
try {
final Field field = target.getDeclaredField(fieldName);
return (Field)
AccessController.doPrivileged(
new PrivilegedExceptionAction<Object>() {
public Object run() throws IllegalAccessException, InvocationTargetException {
if (!field.isAccessible()) field.setAccessible(true);
return field;
}
});
} catch (NoSuchFieldException | PrivilegedActionException e) {
System.out.print("");
} // keep quiet IError.printStackTrace(e); }
return null;
}
