From 6a015d337d6a786adb319c3f9de7b9b7e9ae80bb Mon Sep 17 00:00:00 2001 From: cyberta Date: Tue, 21 Jan 2020 16:10:59 -0600 Subject: implement no-dns fallback using okhttp's Dns interface --- .../se/leap/bitmaskclient/utils/IPAddress.java | 117 +++++++++++++++++++++ .../leap/bitmaskclient/utils/PreferenceHelper.java | 7 +- 2 files changed, 122 insertions(+), 2 deletions(-) create mode 100644 app/src/main/java/se/leap/bitmaskclient/utils/IPAddress.java (limited to 'app/src/main/java/se/leap/bitmaskclient/utils') diff --git a/app/src/main/java/se/leap/bitmaskclient/utils/IPAddress.java b/app/src/main/java/se/leap/bitmaskclient/utils/IPAddress.java new file mode 100644 index 00000000..8b419a2c --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/utils/IPAddress.java @@ -0,0 +1,117 @@ +package se.leap.bitmaskclient.utils; + +/* + * Copyright (C) 2006-2008 Alfresco Software Limited. + * + * 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + * As a special exception to the terms and conditions of version 2.0 of + * the GPL, you may redistribute this Program in connection with Free/Libre + * and Open Source Software ("FLOSS") applications as described in Alfresco's + * FLOSS exception. You should have recieved a copy of the text describing + * the FLOSS exception, and it is also available here: + * http://www.alfresco.com/legal/licensing" + */ + +//package net.gqu.utils; + +import java.util.StringTokenizer; + +/** + * TCP/IP Address Utility Class + * + * @author gkspencer + */ +public class IPAddress { + + + /** + * Convert a TCP/IP address string into a byte array + * + * @param addr String + * @return byte[] + */ + public final static byte[] asBytes(String addr) { + + // Convert the TCP/IP address string to an integer value + + int ipInt = parseNumericAddress(addr); + if ( ipInt == 0) + return null; + + // Convert to bytes + + byte[] ipByts = new byte[4]; + + ipByts[3] = (byte) (ipInt & 0xFF); + ipByts[2] = (byte) ((ipInt >> 8) & 0xFF); + ipByts[1] = (byte) ((ipInt >> 16) & 0xFF); + ipByts[0] = (byte) ((ipInt >> 24) & 0xFF); + + // Return the TCP/IP bytes + + return ipByts; + } + /** + * Check if the specified address is a valid numeric TCP/IP address and return as an integer value + * + * @param ipaddr String + * @return int + */ + public final static int parseNumericAddress(String ipaddr) { + + // Check if the string is valid + + if ( ipaddr == null || ipaddr.length() < 7 || ipaddr.length() > 15) + return 0; + + // Check the address string, should be n.n.n.n format + + StringTokenizer token = new StringTokenizer(ipaddr,"."); + if ( token.countTokens() != 4) + return 0; + + int ipInt = 0; + + while ( token.hasMoreTokens()) { + + // Get the current token and convert to an integer value + + String ipNum = token.nextToken(); + + try { + + // Validate the current address part + + int ipVal = Integer.valueOf(ipNum).intValue(); + if ( ipVal < 0 || ipVal > 255) + return 0; + + // Add to the integer address + + ipInt = (ipInt << 8) + ipVal; + } + catch (NumberFormatException ex) { + return 0; + } + } + + // Return the integer address + + return ipInt; + } + + +} \ No newline at end of file diff --git a/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java b/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java index 40bb2eca..b6e39c50 100644 --- a/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java +++ b/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java @@ -2,7 +2,6 @@ package se.leap.bitmaskclient.utils; import android.content.Context; import android.content.SharedPreferences; -import android.preference.PreferenceManager; import android.support.annotation.NonNull; import android.support.annotation.Nullable; @@ -24,6 +23,7 @@ import se.leap.bitmaskclient.Provider; import static android.content.Context.MODE_PRIVATE; import static se.leap.bitmaskclient.Constants.ALWAYS_ON_SHOW_DIALOG; import static se.leap.bitmaskclient.Constants.DEFAULT_SHARED_PREFS_BATTERY_SAVER; +import static se.leap.bitmaskclient.Constants.EXCLUDED_APPS; import static se.leap.bitmaskclient.Constants.LAST_USED_PROFILE; import static se.leap.bitmaskclient.Constants.PREFERENCES_APP_VERSION; import static se.leap.bitmaskclient.Constants.PROVIDER_CONFIGURED; @@ -33,7 +33,6 @@ import static se.leap.bitmaskclient.Constants.PROVIDER_VPN_CERTIFICATE; import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES; import static se.leap.bitmaskclient.Constants.SU_PERMISSION; import static se.leap.bitmaskclient.Constants.USE_PLUGGABLE_TRANSPORTS; -import static se.leap.bitmaskclient.Constants.EXCLUDED_APPS; /** * Created by cyberta on 18.03.18. @@ -48,6 +47,7 @@ public class PreferenceHelper { Provider provider = new Provider(); try { provider.setMainUrl(new URL(preferences.getString(Provider.MAIN_URL, ""))); + provider.setProviderIp(preferences.getString(Provider.PROVIDER_IP, "")); provider.define(new JSONObject(preferences.getString(Provider.KEY, ""))); provider.setCaCert(preferences.getString(Provider.CA_CERT, "")); provider.setVpnCertificate(preferences.getString(PROVIDER_VPN_CERTIFICATE, "")); @@ -131,6 +131,7 @@ public class PreferenceHelper { //FIXME: don't save private keys in shared preferences! use the keystore public static void storeProviderInPreferences(SharedPreferences preferences, Provider provider) { preferences.edit().putBoolean(PROVIDER_CONFIGURED, true). + putString(Provider.PROVIDER_IP, provider.getProviderIp()). putString(Provider.MAIN_URL, provider.getMainUrlString()). putString(Provider.KEY, provider.getDefinitionString()). putString(Provider.CA_CERT, provider.getCaCert()). @@ -141,6 +142,7 @@ public class PreferenceHelper { String providerDomain = provider.getDomain(); preferences.edit().putBoolean(PROVIDER_CONFIGURED, true). + putString(Provider.PROVIDER_IP + "." + providerDomain, provider.getProviderIp()). putString(Provider.MAIN_URL + "." + providerDomain, provider.getMainUrlString()). putString(Provider.KEY + "." + providerDomain, provider.getDefinitionString()). putString(Provider.CA_CERT + "." + providerDomain, provider.getCaCert()). @@ -206,6 +208,7 @@ public class PreferenceHelper { remove(Provider.KEY + "." + providerDomain). remove(Provider.CA_CERT + "." + providerDomain). remove(Provider.CA_CERT_FINGERPRINT + "." + providerDomain). + remove(Provider.PROVIDER_IP + "." + providerDomain). remove(Provider.MAIN_URL + "." + providerDomain). remove(Provider.KEY + "." + providerDomain). remove(Provider.CA_CERT + "." + providerDomain). -- cgit v1.2.3