| /* |
| * Copyright (C) 2004-2014 Savoir-Faire Linux Inc. |
| * |
| * Author: Alexandre Lision <alexandre.lision@savoirfairelinux> |
| * |
| * 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, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * Additional permission under GNU GPL version 3 section 7: |
| * |
| * If you modify this program, or any covered work, by linking or |
| * combining it with the OpenSSL project's OpenSSL library (or a |
| * modified version of that library), containing parts covered by the |
| * terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc. |
| * grants you additional permission to convey the resulting work. |
| * Corresponding Source for a non-source form of such a combination |
| * shall include the source code for the parts of OpenSSL used as well |
| * as that of the covered work. |
| */ |
| |
| package org.sflphone.model; |
| |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Log; |
| import org.sflphone.account.AccountDetailSrtp; |
| |
| import java.io.Serializable; |
| |
| |
| public class SecureSipCall extends SipCall { |
| |
| public interface SecureLayer { |
| int ZRTP_LAYER = 0; |
| int SDES_LAYER = 1; |
| } |
| |
| public final static int DISPLAY_GREEN_LOCK = 0; |
| public final static int DISPLAY_RED_LOCK = 1; |
| public final static int DISPLAY_CONFIRM_SAS = 2; |
| public final static int DISPLAY_NONE = 3; |
| |
| int mSecureLayerUsed; |
| ZrtpModule mZrtpModule; |
| SdesModule mSdesModule; |
| |
| private boolean isInitialized; |
| |
| public SecureSipCall(SipCall call) { |
| super(call); |
| isInitialized = false; |
| String keyExchange = getAccount().getSrtpDetails().getDetailString(AccountDetailSrtp.CONFIG_SRTP_KEY_EXCHANGE); |
| if (keyExchange.contentEquals("zrtp")) { |
| mSecureLayerUsed = SecureLayer.ZRTP_LAYER; |
| } else if (keyExchange.contentEquals("sdes")) { |
| mSecureLayerUsed = SecureLayer.SDES_LAYER; |
| } |
| |
| mZrtpModule = new ZrtpModule(); |
| mSdesModule = new SdesModule(); |
| } |
| |
| public void setSASConfirmed(boolean confirmedSAS) { |
| mZrtpModule.needSASConfirmation = !confirmedSAS; |
| } |
| |
| public String getSAS() { |
| return mZrtpModule.SAS; |
| } |
| |
| public void setSAS(String SAS) { |
| mZrtpModule.SAS = SAS; |
| } |
| |
| public SecureSipCall(Parcel in) { |
| super(in); |
| isInitialized = in.readByte() == 1; |
| mSecureLayerUsed = in.readInt(); |
| mSdesModule = new SdesModule(in); |
| mZrtpModule = new ZrtpModule(in); |
| } |
| |
| @Override |
| public void writeToParcel(Parcel out, int flags) { |
| super.writeToParcel(out, flags); |
| out.writeByte((byte) (isInitialized ? 1 : 0)); |
| out.writeInt(mSecureLayerUsed); |
| mSdesModule.writeToParcel(out); |
| mZrtpModule.writeToParcel(out); |
| } |
| |
| public static final Parcelable.Creator<SecureSipCall> CREATOR = new Parcelable.Creator<SecureSipCall>() { |
| public SecureSipCall createFromParcel(Parcel in) { |
| return new SecureSipCall(in); |
| } |
| |
| public SecureSipCall[] newArray(int size) { |
| return new SecureSipCall[size]; |
| } |
| }; |
| |
| public void sasConfirmedByZrtpLayer(boolean verified) { |
| // Not used |
| } |
| |
| public void setZrtpSupport(boolean support) { |
| mZrtpModule.zrtpIsSupported = support; |
| if (!support) |
| mZrtpModule.needSASConfirmation = false; |
| } |
| |
| public void setInitialized() { |
| isInitialized = true; |
| } |
| |
| /* |
| * returns what state should be visible during call |
| */ |
| public int displayModule() { |
| if (isInitialized) { |
| Log.i("SecureSIp", "needSASConfirmation" + mZrtpModule.needSASConfirmation); |
| if (mZrtpModule.needSASConfirmation) { |
| return DISPLAY_CONFIRM_SAS; |
| } else if (mZrtpModule.zrtpIsSupported || mSdesModule.sdesIsOn) { |
| return DISPLAY_GREEN_LOCK; |
| } else { |
| return DISPLAY_RED_LOCK; |
| } |
| } |
| return DISPLAY_NONE; |
| } |
| |
| public void useSecureSDES(boolean use) { |
| mSdesModule.sdesIsOn = use; |
| mZrtpModule.needSASConfirmation = false; |
| } |
| |
| |
| private class ZrtpModule { |
| private String SAS; |
| private boolean needSASConfirmation; |
| private boolean zrtpIsSupported; |
| |
| // static preferences of account |
| private final boolean displaySas; |
| private final boolean alertIfZrtpNotSupported; |
| private final boolean displaySASOnHold; |
| |
| public ZrtpModule() { |
| displaySas = getAccount().getSrtpDetails().getDetailBoolean(AccountDetailSrtp.CONFIG_ZRTP_DISPLAY_SAS); |
| alertIfZrtpNotSupported = getAccount().getSrtpDetails().getDetailBoolean(AccountDetailSrtp.CONFIG_ZRTP_NOT_SUPP_WARNING); |
| displaySASOnHold = getAccount().getSrtpDetails().getDetailBoolean(AccountDetailSrtp.CONFIG_ZRTP_NOT_SUPP_WARNING); |
| needSASConfirmation = displaySas; |
| zrtpIsSupported = false; |
| } |
| |
| public ZrtpModule(Parcel in) { |
| SAS = in.readString(); |
| displaySas = in.readByte() == 1; |
| alertIfZrtpNotSupported = in.readByte() == 1; |
| displaySASOnHold = in.readByte() == 1; |
| zrtpIsSupported = in.readByte() == 1; |
| needSASConfirmation = in.readByte() == 1; |
| } |
| |
| public void writeToParcel(Parcel dest) { |
| dest.writeString(SAS); |
| dest.writeByte((byte) (displaySas ? 1 : 0)); |
| dest.writeByte((byte) (alertIfZrtpNotSupported ? 1 : 0)); |
| dest.writeByte((byte) (displaySASOnHold ? 1 : 0)); |
| dest.writeByte((byte) (zrtpIsSupported ? 1 : 0)); |
| dest.writeByte((byte) (needSASConfirmation ? 1 : 0)); |
| } |
| } |
| |
| private class SdesModule { |
| |
| private boolean sdesIsOn; |
| |
| public SdesModule() { |
| sdesIsOn = false; |
| } |
| |
| public SdesModule(Parcel in) { |
| sdesIsOn = in.readByte() == 1; |
| } |
| |
| public void writeToParcel(Parcel dest) { |
| dest.writeByte((byte) (sdesIsOn ? 1 : 0)); |
| } |
| } |
| } |