From a2a38163202e53eea1328d7c20ec0e94b33f2fc6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Thu, 10 Oct 2013 16:58:58 +0200 Subject: Refactored leapclient to bitmaskclient. I do not change the company (se.leap). All references within strings.xml point to "bitmask" instead of to "leap". --- src/se/leap/bitmaskclient/ConfigHelper.java | 317 ++++++++++++++++++++++++++++ 1 file changed, 317 insertions(+) create mode 100644 src/se/leap/bitmaskclient/ConfigHelper.java (limited to 'src/se/leap/bitmaskclient/ConfigHelper.java') diff --git a/src/se/leap/bitmaskclient/ConfigHelper.java b/src/se/leap/bitmaskclient/ConfigHelper.java new file mode 100644 index 00000000..b916a9ac --- /dev/null +++ b/src/se/leap/bitmaskclient/ConfigHelper.java @@ -0,0 +1,317 @@ +/** + * Copyright (c) 2013 LEAP Encryption Access Project and contributers + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +package se.leap.bitmaskclient; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.math.BigInteger; +import java.io.InputStream; +import java.security.KeyFactory; +import java.security.KeyStore; +import java.security.KeyStoreException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.cert.CertificateException; +import java.security.cert.CertificateFactory; +import java.security.cert.X509Certificate; +import java.security.interfaces.RSAPrivateKey; +import java.security.spec.InvalidKeySpecException; +import java.security.spec.PKCS8EncodedKeySpec; + +import org.json.JSONException; +import org.json.JSONObject; + +import android.content.Context; +import android.content.SharedPreferences; +import android.util.Base64; + +/** + * Stores constants, and implements auxiliary methods used across all LEAP Android classes. + * + * @author parmegv + * @author MeanderingCode + * + */ +public class ConfigHelper { + + public static SharedPreferences shared_preferences; + private static KeyStore keystore_trusted; + + final public static String NG_1024 = + "eeaf0ab9adb38dd69c33f80afa8fc5e86072618775ff3c0b9ea2314c9c256576d674df7496ea81d3383b4813d692c6e0e0d5d8e250b98be48e495c1d6089dad15dc7d7b46154d6b6ce8ef4ad69b15d4982559b297bcf1885c529f566660e57ec68edbc3c05726cc02fd4cbf4976eaa9afd5138fe8376435b9fc61d2fc0eb06e3"; + final public static BigInteger G = new BigInteger("2"); + + + private static boolean checkSharedPrefs() { + try { + shared_preferences = Dashboard.getAppContext().getSharedPreferences(Dashboard.SHARED_PREFERENCES,Context.MODE_PRIVATE); + } catch (Exception e) { + return false; + } + + return true; + } + + /** + * Saves a JSON object into class scope Shared Preferences + * @param shared_preferences_key + * @param content + */ + public static void saveSharedPref(String shared_preferences_key, JSONObject content) { + + SharedPreferences.Editor shared_preferences_editor = shared_preferences + .edit(); + shared_preferences_editor.putString(shared_preferences_key, + content.toString()); + shared_preferences_editor.commit(); + } + + /** + * Saves a String object into class scope Shared Preferences + * @param shared_preferences_key + * @param content + */ + public static void saveSharedPref(String shared_preferences_key, String content) { + + SharedPreferences.Editor shared_preferences_editor = shared_preferences + .edit(); + shared_preferences_editor.putString(shared_preferences_key, + content); + shared_preferences_editor.commit(); + } + + /** + * Saves a boolean object into class scope Shared Preferences + * @param shared_preferences_key + * @param content + */ + public static void saveSharedPref(String shared_preferences_key, boolean content) { + + SharedPreferences.Editor shared_preferences_editor = shared_preferences + .edit(); + shared_preferences_editor.putBoolean(shared_preferences_key, content); + shared_preferences_editor.commit(); + } + + /** + * Saves an int into class scope Shared Preferences + * + * @param shared_preferences_key + * @param value + */ + protected static void saveSharedPref(String shared_preferences_key, int value) { + SharedPreferences.Editor shared_preferences_editor = shared_preferences.edit(); + shared_preferences_editor.putInt(shared_preferences_key, value).commit(); + } + + /** + * Gets String object from class scope Shared Preferences + * @param shared_preferences_key + * @return the string correspondent to the key parameter + */ + public static String getStringFromSharedPref(String shared_preferences_key) { + String content = null; + content = shared_preferences.getString(shared_preferences_key, ""); + return content; + } + + /** + * Gets JSON object from class scope Shared Preferences + * @param shared_preferences_key + * @return the JSON object correspondent to the key parameter + */ + public static JSONObject getJsonFromSharedPref(String shared_preferences_key) throws JSONException { + JSONObject content = null; + if ( checkSharedPrefs() ) { + String json_string = shared_preferences.getString(shared_preferences_key, ""); + content = new JSONObject(json_string); + } + + return content; + } + + /* + * This method defaults to false. + * If you use this method, be sure to fail-closed on false! + * TODO This is obviously less than ideal...solve it! + */ + public static boolean getBoolFromSharedPref(String shared_preferences_key) { + boolean value = false; + if ( checkSharedPrefs() ) { + value = shared_preferences.getBoolean(shared_preferences_key, false); + } + return value; + } + + /** + * Get an int from SharedPreferences + * + * @param shared_preferences_key Key to retrieve + * @return The value for the key or 0 + */ + protected static int getIntFromSharedPref(String shared_preferences_key) { + return shared_preferences.getInt(shared_preferences_key, 0); + } + + /* + * This method defaults to false. + * If you use this method, be sure to fail-closed on false! + * TODO This is obviously less than ideal...solve it! + */ + public static boolean removeFromSharedPref(String shared_preferences_key) { + SharedPreferences.Editor shared_preferences_editor = shared_preferences + .edit(); + shared_preferences_editor.remove(shared_preferences_key); + return shared_preferences_editor.commit(); + } + + /** + * Treat the input as the MSB representation of a number, + * and lop off leading zero elements. For efficiency, the + * input is simply returned if no leading zeroes are found. + * + * @param in array to be trimmed + */ + public static byte[] trim(byte[] in) { + if(in.length == 0 || in[0] != 0) + return in; + + int len = in.length; + int i = 1; + while(in[i] == 0 && i < len) + ++i; + byte[] ret = new byte[len - i]; + System.arraycopy(in, i, ret, 0, len - i); + return ret; + } + + /** + * Sets class scope Shared Preferences + * @param shared_preferences + */ + public static void setSharedPreferences( + SharedPreferences shared_preferences) { + ConfigHelper.shared_preferences = shared_preferences; + } + + public static X509Certificate parseX509CertificateFromString(String certificate_string) { + java.security.cert.Certificate certificate = null; + CertificateFactory cf; + try { + cf = CertificateFactory.getInstance("X.509"); + + certificate_string = certificate_string.replaceFirst("-----BEGIN CERTIFICATE-----", "").replaceFirst("-----END CERTIFICATE-----", "").trim(); + byte[] cert_bytes = Base64.decode(certificate_string, Base64.DEFAULT); + InputStream caInput = new ByteArrayInputStream(cert_bytes); + try { + certificate = cf.generateCertificate(caInput); + System.out.println("ca=" + ((X509Certificate) certificate).getSubjectDN()); + } finally { + caInput.close(); + } + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IOException e) { + return null; + } + + return (X509Certificate) certificate; + } + + protected static RSAPrivateKey parseRsaKeyFromString(String RsaKeyString) { + RSAPrivateKey key = null; + try { + KeyFactory kf = KeyFactory.getInstance("RSA", "BC"); + + RsaKeyString = RsaKeyString.replaceFirst("-----BEGIN RSA PRIVATE KEY-----", "").replaceFirst("-----END RSA PRIVATE KEY-----", ""); + PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec( Base64.decode(RsaKeyString, Base64.DEFAULT) ); + key = (RSAPrivateKey) kf.generatePrivate(keySpec); + } catch (InvalidKeySpecException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return null; + } catch (NoSuchAlgorithmException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return null; + } catch (NoSuchProviderException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return null; + } + + return key; + } + + /** + * Adds a new X509 certificate given its input stream and its provider name + * @param provider used to store the certificate in the keystore + * @param inputStream from which X509 certificate must be generated. + */ + public static void addTrustedCertificate(String provider, InputStream inputStream) { + CertificateFactory cf; + try { + cf = CertificateFactory.getInstance("X.509"); + X509Certificate cert = + (X509Certificate)cf.generateCertificate(inputStream); + keystore_trusted.setCertificateEntry(provider, cert); + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (KeyStoreException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + /** + * Adds a new X509 certificate given in its string from and using its provider name + * @param provider used to store the certificate in the keystore + * @param certificate + */ + public static void addTrustedCertificate(String provider, String certificate) { + + try { + X509Certificate cert = ConfigHelper.parseX509CertificateFromString(certificate); + if(keystore_trusted == null) { + keystore_trusted = KeyStore.getInstance("BKS"); + keystore_trusted.load(null); + } + keystore_trusted.setCertificateEntry(provider, cert); + } catch (KeyStoreException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (NoSuchAlgorithmException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + /** + * @return class wide keystore + */ + public static KeyStore getKeystore() { + return keystore_trusted; + } +} -- cgit v1.2.3