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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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 <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.app.Fragment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.beardedhen.androidbootstrap.BootstrapButton;
import com.devspark.appmsg.AppMsg;
import org.openintents.openpgp.OpenPgpSignatureResult;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
public class DecryptFragment extends Fragment {
private static final int RESULT_CODE_LOOKUP_KEY = 0x00007006;
protected long mSignatureKeyId = 0;
protected RelativeLayout mSignatureLayout = null;
protected ImageView mSignatureStatusImage = null;
protected TextView mUserId = null;
protected TextView mUserIdRest = null;
protected BootstrapButton mLookupKey = null;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mSignatureLayout = (RelativeLayout) getView().findViewById(R.id.signature);
mSignatureStatusImage = (ImageView) getView().findViewById(R.id.ic_signature_status);
mUserId = (TextView) getView().findViewById(R.id.mainUserId);
mUserIdRest = (TextView) getView().findViewById(R.id.mainUserIdRest);
mLookupKey = (BootstrapButton) getView().findViewById(R.id.lookup_key);
mLookupKey.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
lookupUnknownKey(mSignatureKeyId);
}
});
mSignatureLayout.setVisibility(View.GONE);
mSignatureLayout.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
lookupUnknownKey(mSignatureKeyId);
}
});
}
private void lookupUnknownKey(long unknownKeyId) {
Intent intent = new Intent(getActivity(), ImportKeysActivity.class);
intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_KEYSERVER);
intent.putExtra(ImportKeysActivity.EXTRA_KEY_ID, unknownKeyId);
startActivityForResult(intent, RESULT_CODE_LOOKUP_KEY);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
// this request is returned after LookupUnknownKeyDialogFragment started
// ImportKeysActivity and user looked uo key
case RESULT_CODE_LOOKUP_KEY: {
Log.d(Constants.TAG, "Returning from Lookup Key...");
if (resultCode == Activity.RESULT_OK) {
// decrypt again
// decryptStart();
}
return;
}
default: {
super.onActivityResult(requestCode, resultCode, data);
break;
}
}
}
protected void onSignatureResult(OpenPgpSignatureResult signatureResult) {
mSignatureKeyId = 0;
mSignatureLayout.setVisibility(View.GONE);
if (signatureResult != null) {
mSignatureKeyId = signatureResult.getKeyId();
String userId = signatureResult.getUserId();
String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
if (userIdSplit[0] != null) {
mUserId.setText(userId);
} else {
mUserId.setText(R.string.user_id_no_name);
}
if (userIdSplit[1] != null) {
mUserIdRest.setText(userIdSplit[1]);
} else {
mUserIdRest.setText(getString(R.string.label_key_id) + ": "
+ PgpKeyHelper.convertKeyIdToHex(mSignatureKeyId));
}
switch (signatureResult.getStatus()) {
case OpenPgpSignatureResult.SIGNATURE_SUCCESS_UNCERTIFIED: {
mSignatureStatusImage.setImageResource(R.drawable.overlay_ok);
mLookupKey.setVisibility(View.GONE);
break;
}
// TODO!
// case OpenPgpSignatureResult.SIGNATURE_SUCCESS_CERTIFIED: {
// break;
// }
case OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY: {
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
mLookupKey.setVisibility(View.VISIBLE);
AppMsg.makeText(getActivity(),
R.string.unknown_signature,
AppMsg.STYLE_ALERT).show();
break;
}
default: {
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
mLookupKey.setVisibility(View.GONE);
break;
}
}
mSignatureLayout.setVisibility(View.VISIBLE);
}
}
protected void showPassphraseDialog(long keyId) {
// Message is received after passphrase is cached
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) {
String passphrase =
message.getData().getString(PassphraseDialogFragment.MESSAGE_DATA_PASSPHRASE);
decryptStart(passphrase);
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
try {
PassphraseDialogFragment passphraseDialog = PassphraseDialogFragment.newInstance(getActivity(),
messenger, keyId);
passphraseDialog.show(getActivity().getSupportFragmentManager(), "passphraseDialog");
} catch (PgpGeneralException e) {
Log.d(Constants.TAG, "No passphrase for this secret key, encrypt directly!");
// send message to handler to start encryption directly
returnHandler.sendEmptyMessage(PassphraseDialogFragment.MESSAGE_OKAY);
}
}
/**
* Should be overridden by MessageFragment and FileFragment to start actual decryption
* @param passphrase
*/
protected void decryptStart(String passphrase) {
}
}
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