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; }