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|
/*
* Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.ui;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.regex.Matcher;
import org.spongycastle.openpgp.PGPPublicKeyRing;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.Id;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
import org.sufficientlysecure.keychain.helper.ActionBarHelper;
import org.sufficientlysecure.keychain.helper.FileHelper;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.PgpOperation;
import org.sufficientlysecure.keychain.pgp.exception.NoAsymmetricEncryptionException;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment;
import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment;
import org.sufficientlysecure.keychain.ui.dialog.LookupUnknownKeyDialogFragment;
import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
import android.annotation.SuppressLint;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.view.MenuCompat;
import android.support.v4.view.MenuItemCompat;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AnimationUtils;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ViewFlipper;
import com.beardedhen.androidbootstrap.BootstrapButton;
@SuppressLint("NewApi")
public class DecryptActivity extends DrawerActivity {
/* Intents */
// without permission
public static final String ACTION_DECRYPT = Constants.INTENT_PREFIX + "DECRYPT";
/* EXTRA keys for input */
public static final String EXTRA_TEXT = "text";
private long mSignatureKeyId = 0;
private boolean mReturnResult = false;
private boolean mSignedOnly = false;
private boolean mAssumeSymmetricEncryption = false;
private EditText mMessage = null;
private LinearLayout mSignatureLayout = null;
private ImageView mSignatureStatusImage = null;
private TextView mUserId = null;
private TextView mUserIdRest = null;
private ViewFlipper mSource = null;
private TextView mSourceLabel = null;
private ImageView mSourcePrevious = null;
private ImageView mSourceNext = null;
private boolean mDecryptEnabled = true;
private String mDecryptString = "";
private boolean mReplyEnabled = true;
private String mReplyString = "";
private int mDecryptTarget;
private EditText mFilename = null;
private CheckBox mDeleteAfter = null;
private BootstrapButton mBrowse = null;
private String mInputFilename = null;
private String mOutputFilename = null;
private Uri mContentUri = null;
private boolean mReturnBinary = false;
private long mUnknownSignatureKeyId = 0;
private long mSecretKeyId = Id.key.none;
private FileDialogFragment mFileDialog;
private boolean mLookupUnknownKey = true;
private boolean mDecryptImmediately = false;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (mDecryptEnabled) {
MenuItem item = menu.add(1, Id.menu.option.decrypt, 0, mDecryptString);
MenuItemCompat.setShowAsAction(item, MenuItemCompat.SHOW_AS_ACTION_ALWAYS | MenuItemCompat.SHOW_AS_ACTION_WITH_TEXT);
}
if (mReplyEnabled) {
MenuItem item = menu.add(1, Id.menu.option.reply, 1, mReplyString);
MenuItemCompat.setShowAsAction(item, MenuItemCompat.SHOW_AS_ACTION_ALWAYS | MenuItemCompat.SHOW_AS_ACTION_WITH_TEXT);
}
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case Id.menu.option.decrypt: {
decryptClicked();
return true;
}
case Id.menu.option.reply: {
replyClicked();
return true;
}
default: {
return super.onOptionsItemSelected(item);
}
}
}
private void initView() {
mSource = (ViewFlipper) findViewById(R.id.source);
mSourceLabel = (TextView) findViewById(R.id.sourceLabel);
mSourcePrevious = (ImageView) findViewById(R.id.sourcePrevious);
mSourceNext = (ImageView) findViewById(R.id.sourceNext);
mSourcePrevious.setClickable(true);
mSourcePrevious.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mSource.setInAnimation(AnimationUtils.loadAnimation(DecryptActivity.this,
R.anim.push_right_in));
mSource.setOutAnimation(AnimationUtils.loadAnimation(DecryptActivity.this,
R.anim.push_right_out));
mSource.showPrevious();
updateSource();
}
});
mSourceNext.setClickable(true);
OnClickListener nextSourceClickListener = new OnClickListener() {
public void onClick(View v) {
mSource.setInAnimation(AnimationUtils.loadAnimation(DecryptActivity.this,
R.anim.push_left_in));
mSource.setOutAnimation(AnimationUtils.loadAnimation(DecryptActivity.this,
R.anim.push_left_out));
mSource.showNext();
updateSource();
}
};
mSourceNext.setOnClickListener(nextSourceClickListener);
mSourceLabel.setClickable(true);
mSourceLabel.setOnClickListener(nextSourceClickListener);
mMessage = (EditText) findViewById(R.id.message);
mSignatureLayout = (LinearLayout) findViewById(R.id.signature);
mSignatureStatusImage = (ImageView) findViewById(R.id.ic_signature_status);
mUserId = (TextView) findViewById(R.id.mainUserId);
mUserIdRest = (TextView) findViewById(R.id.mainUserIdRest);
// measure the height of the source_file view and set the message view's min height to that,
// so it fills mSource fully... bit of a hack.
View tmp = findViewById(R.id.sourceFile);
tmp.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
int height = tmp.getMeasuredHeight();
mMessage.setMinimumHeight(height);
mFilename = (EditText) findViewById(R.id.filename);
mBrowse = (BootstrapButton) findViewById(R.id.btn_browse);
mBrowse.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
FileHelper.openFile(DecryptActivity.this, mFilename.getText().toString(), "*/*",
Id.request.filename);
}
});
mDeleteAfter = (CheckBox) findViewById(R.id.deleteAfterDecryption);
// default: message source
mSource.setInAnimation(null);
mSource.setOutAnimation(null);
while (mSource.getCurrentView().getId() != R.id.sourceMessage) {
mSource.showNext();
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.decrypt_activity);
// set actionbar without home button if called from another app
ActionBarHelper.setBackButton(this);
initView();
setupDrawerNavigation(savedInstanceState);
// Handle intent actions
handleActions(getIntent());
if (mSource.getCurrentView().getId() == R.id.sourceMessage
&& mMessage.getText().length() == 0) {
CharSequence clipboardText = ClipboardReflection.getClipboardText(this);
String data = "";
if (clipboardText != null) {
Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(clipboardText);
if (!matcher.matches()) {
matcher = PgpHelper.PGP_SIGNED_MESSAGE.matcher(clipboardText);
}
if (matcher.matches()) {
data = matcher.group(1);
mMessage.setText(data);
Toast.makeText(this, R.string.using_clipboard_content, Toast.LENGTH_SHORT)
.show();
}
}
}
mSignatureLayout.setVisibility(View.GONE);
mSignatureLayout.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (mSignatureKeyId == 0) {
return;
}
PGPPublicKeyRing key = ProviderHelper.getPGPPublicKeyRingByKeyId(
DecryptActivity.this, mSignatureKeyId);
if (key != null) {
Intent intent = new Intent(DecryptActivity.this, ImportKeysActivity.class);
intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_KEYSERVER);
intent.putExtra(ImportKeysActivity.EXTRA_KEY_ID, mSignatureKeyId);
startActivity(intent);
}
}
});
mReplyEnabled = false;
// build new actionbar
supportInvalidateOptionsMenu();
if (mReturnResult) {
mSourcePrevious.setClickable(false);
mSourcePrevious.setEnabled(false);
mSourcePrevious.setVisibility(View.INVISIBLE);
mSourceNext.setClickable(false);
mSourceNext.setEnabled(false);
mSourceNext.setVisibility(View.INVISIBLE);
mSourceLabel.setClickable(false);
mSourceLabel.setEnabled(false);
}
updateSource();
if (mDecryptImmediately
|| (mSource.getCurrentView().getId() == R.id.sourceMessage && (mMessage.getText()
.length() > 0 || mContentUri != null))) {
decryptClicked();
}
}
/**
* Handles all actions with this intent
*
* @param intent
*/
private void handleActions(Intent intent) {
String action = intent.getAction();
Bundle extras = intent.getExtras();
String type = intent.getType();
Uri uri = intent.getData();
if (extras == null) {
extras = new Bundle();
}
/*
* Android's Action
*/
if (Intent.ACTION_SEND.equals(action) && type != null) {
// When sending to Keychain Encrypt via share menu
if ("text/plain".equals(type)) {
// Plain text
String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
if (sharedText != null) {
// handle like normal text decryption, override action and extras to later
// execute ACTION_DECRYPT in main actions
extras.putString(EXTRA_TEXT, sharedText);
action = ACTION_DECRYPT;
}
} else {
// Binary via content provider (could also be files)
// override uri to get stream from send
uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
action = ACTION_DECRYPT;
}
} else if (Intent.ACTION_VIEW.equals(action)) {
// Android's Action when opening file associated to Keychain (see AndroidManifest.xml)
// override action
action = ACTION_DECRYPT;
}
String textData = extras.getString(EXTRA_TEXT);
/**
* Main Actions
*/
if (ACTION_DECRYPT.equals(action) && textData != null) {
Log.d(Constants.TAG, "textData null, matching text ...");
Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(textData);
if (matcher.matches()) {
Log.d(Constants.TAG, "PGP_MESSAGE matched");
textData = matcher.group(1);
// replace non breakable spaces
textData = textData.replaceAll("\\xa0", " ");
mMessage.setText(textData);
} else {
matcher = PgpHelper.PGP_SIGNED_MESSAGE.matcher(textData);
if (matcher.matches()) {
Log.d(Constants.TAG, "PGP_SIGNED_MESSAGE matched");
textData = matcher.group(1);
// replace non breakable spaces
textData = textData.replaceAll("\\xa0", " ");
mMessage.setText(textData);
mDecryptString = getString(R.string.btn_verify);
// build new action bar
supportInvalidateOptionsMenu();
} else {
Log.d(Constants.TAG, "Nothing matched!");
}
}
} else if (ACTION_DECRYPT.equals(action) && uri != null) {
// get file path from uri
String path = FileHelper.getPath(this, uri);
if (path != null) {
mInputFilename = path;
mFilename.setText(mInputFilename);
guessOutputFilename();
mSource.setInAnimation(null);
mSource.setOutAnimation(null);
while (mSource.getCurrentView().getId() != R.id.sourceFile) {
mSource.showNext();
}
} else {
Log.e(Constants.TAG,
"Direct binary data without actual file in filesystem is not supported. Please use the Remote Service API!");
Toast.makeText(this, R.string.error_only_files_are_supported, Toast.LENGTH_LONG)
.show();
// end activity
finish();
}
} else {
Log.e(Constants.TAG,
"Include the extra 'text' or an Uri with setData() in your Intent!");
}
}
private void guessOutputFilename() {
mInputFilename = mFilename.getText().toString();
File file = new File(mInputFilename);
String filename = file.getName();
if (filename.endsWith(".asc") || filename.endsWith(".gpg") || filename.endsWith(".pgp")) {
filename = filename.substring(0, filename.length() - 4);
}
mOutputFilename = Constants.path.APP_DIR + "/" + filename;
}
private void updateSource() {
switch (mSource.getCurrentView().getId()) {
case R.id.sourceFile: {
mSourceLabel.setText(R.string.label_file);
mDecryptString = getString(R.string.btn_decrypt);
// build new action bar
supportInvalidateOptionsMenu();
break;
}
case R.id.sourceMessage: {
mSourceLabel.setText(R.string.label_message);
mDecryptString = getString(R.string.btn_decrypt);
// build new action bar
supportInvalidateOptionsMenu();
break;
}
default: {
break;
}
}
}
private void decryptClicked() {
if (mSource.getCurrentView().getId() == R.id.sourceFile) {
mDecryptTarget = Id.target.file;
} else {
mDecryptTarget = Id.target.message;
}
initiateDecryption();
}
private void initiateDecryption() {
if (mDecryptTarget == Id.target.file) {
String currentFilename = mFilename.getText().toString();
if (mInputFilename == null || !mInputFilename.equals(currentFilename)) {
guessOutputFilename();
}
if (mInputFilename.equals("")) {
Toast.makeText(this, R.string.no_file_selected, Toast.LENGTH_SHORT).show();
return;
}
if (mInputFilename.startsWith("file")) {
File file = new File(mInputFilename);
if (!file.exists() || !file.isFile()) {
Toast.makeText(
this,
getString(R.string.error_message,
getString(R.string.error_file_not_found)), Toast.LENGTH_SHORT)
.show();
return;
}
}
}
if (mDecryptTarget == Id.target.message) {
String messageData = mMessage.getText().toString();
Matcher matcher = PgpHelper.PGP_SIGNED_MESSAGE.matcher(messageData);
if (matcher.matches()) {
mSignedOnly = true;
decryptStart();
return;
}
}
// else treat it as an decrypted message/file
mSignedOnly = false;
getDecryptionKeyFromInputStream();
// if we need a symmetric passphrase or a passphrase to use a secret key ask for it
if (mSecretKeyId == Id.key.symmetric
|| PassphraseCacheService.getCachedPassphrase(this, mSecretKeyId) == null) {
showPassphraseDialog();
} else {
if (mDecryptTarget == Id.target.file) {
askForOutputFilename();
} else {
decryptStart();
}
}
}
/**
* Shows passphrase dialog to cache a new passphrase the user enters for using it later for
* encryption. Based on mSecretKeyId it asks for a passphrase to open a private key or it asks
* for a symmetric passphrase
*/
private void showPassphraseDialog() {
// Message is received after passphrase is cached
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) {
if (mDecryptTarget == Id.target.file) {
askForOutputFilename();
} else {
decryptStart();
}
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
try {
PassphraseDialogFragment passphraseDialog = PassphraseDialogFragment.newInstance(this,
messenger, mSecretKeyId);
passphraseDialog.show(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);
}
}
/**
* TODO: Rework function, remove global variables
*/
private void getDecryptionKeyFromInputStream() {
InputStream inStream = null;
if (mContentUri != null) {
try {
inStream = getContentResolver().openInputStream(mContentUri);
} catch (FileNotFoundException e) {
Log.e(Constants.TAG, "File not found!", e);
Toast.makeText(this, getString(R.string.error_file_not_found, e.getMessage()),
Toast.LENGTH_SHORT).show();
}
} else if (mDecryptTarget == Id.target.file) {
// check if storage is ready
if (!FileHelper.isStorageMounted(mInputFilename)) {
Toast.makeText(this, getString(R.string.error_external_storage_not_ready),
Toast.LENGTH_SHORT).show();
return;
}
try {
inStream = new BufferedInputStream(new FileInputStream(mInputFilename));
} catch (FileNotFoundException e) {
Log.e(Constants.TAG, "File not found!", e);
Toast.makeText(this, getString(R.string.error_file_not_found, e.getMessage()),
Toast.LENGTH_SHORT).show();
}
} else {
inStream = new ByteArrayInputStream(mMessage.getText().toString().getBytes());
}
// get decryption key for this inStream
try {
try {
if (inStream.markSupported()) {
inStream.mark(200); // should probably set this to the max size of two pgpF
// objects, if it even needs to be anything other than 0.
}
mSecretKeyId = PgpHelper.getDecryptionKeyId(this, inStream);
if (mSecretKeyId == Id.key.none) {
throw new PgpGeneralException(getString(R.string.error_no_secret_key_found));
}
mAssumeSymmetricEncryption = false;
} catch (NoAsymmetricEncryptionException e) {
if (inStream.markSupported()) {
inStream.reset();
}
mSecretKeyId = Id.key.symmetric;
if (!PgpOperation.hasSymmetricEncryption(this, inStream)) {
throw new PgpGeneralException(
getString(R.string.error_no_known_encryption_found));
}
mAssumeSymmetricEncryption = true;
}
} catch (Exception e) {
Toast.makeText(this, getString(R.string.error_message, e.getMessage()),
Toast.LENGTH_SHORT).show();
}
}
private void replyClicked() {
Intent intent = new Intent(this, EncryptActivity.class);
intent.setAction(EncryptActivity.ACTION_ENCRYPT);
String data = mMessage.getText().toString();
data = data.replaceAll("(?m)^", "> ");
data = "\n\n" + data;
intent.putExtra(EncryptActivity.EXTRA_TEXT, data);
intent.putExtra(EncryptActivity.EXTRA_SIGNATURE_KEY_ID, mSecretKeyId);
intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, new long[] { mSignatureKeyId });
startActivity(intent);
}
private void askForOutputFilename() {
// Message is received after passphrase is cached
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == FileDialogFragment.MESSAGE_OKAY) {
Bundle data = message.getData();
mOutputFilename = data.getString(FileDialogFragment.MESSAGE_DATA_FILENAME);
decryptStart();
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
mFileDialog = FileDialogFragment.newInstance(messenger,
getString(R.string.title_decrypt_to_file),
getString(R.string.specify_file_to_decrypt_to), mOutputFilename, null);
mFileDialog.show(getSupportFragmentManager(), "fileDialog");
}
private void lookupUnknownKey(long unknownKeyId) {
// Message is received after passphrase is cached
Handler returnHandler = new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == LookupUnknownKeyDialogFragment.MESSAGE_OKAY) {
// the result is handled by onActivityResult() as LookupUnknownKeyDialogFragment
// starts a new Intent which then returns data
} else if (message.what == LookupUnknownKeyDialogFragment.MESSAGE_CANCEL) {
// decrypt again, but don't lookup unknown keys!
mLookupUnknownKey = false;
decryptStart();
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(returnHandler);
LookupUnknownKeyDialogFragment lookupKeyDialog = LookupUnknownKeyDialogFragment
.newInstance(messenger, unknownKeyId);
lookupKeyDialog.show(getSupportFragmentManager(), "unknownKeyDialog");
}
private void decryptStart() {
Log.d(Constants.TAG, "decryptStart");
// Send all information needed to service to decrypt in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
// fill values for this action
Bundle data = new Bundle();
intent.setAction(KeychainIntentService.ACTION_DECRYPT_VERIFY);
// choose action based on input: decrypt stream, file or bytes
if (mContentUri != null) {
data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_STREAM);
data.putParcelable(KeychainIntentService.ENCRYPT_PROVIDER_URI, mContentUri);
} else if (mDecryptTarget == Id.target.file) {
data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_URI);
Log.d(Constants.TAG, "mInputFilename=" + mInputFilename + ", mOutputFilename="
+ mOutputFilename);
data.putString(KeychainIntentService.ENCRYPT_INPUT_FILE, mInputFilename);
data.putString(KeychainIntentService.ENCRYPT_OUTPUT_FILE, mOutputFilename);
} else {
data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_BYTES);
String message = mMessage.getText().toString();
data.putByteArray(KeychainIntentService.DECRYPT_CIPHERTEXT_BYTES, message.getBytes());
}
data.putLong(KeychainIntentService.ENCRYPT_SECRET_KEY_ID, mSecretKeyId);
data.putBoolean(KeychainIntentService.DECRYPT_SIGNED_ONLY, mSignedOnly);
data.putBoolean(KeychainIntentService.DECRYPT_LOOKUP_UNKNOWN_KEY, mLookupUnknownKey);
data.putBoolean(KeychainIntentService.DECRYPT_RETURN_BYTES, mReturnBinary);
data.putBoolean(KeychainIntentService.DECRYPT_ASSUME_SYMMETRIC, mAssumeSymmetricEncryption);
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after encrypting is done in ApgService
KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
R.string.progress_decrypting, ProgressDialog.STYLE_HORIZONTAL) {
public void handleMessage(Message message) {
// handle messages by standard ApgHandler first
super.handleMessage(message);
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
// get returned data bundle
Bundle returnData = message.getData();
// if key is unknown show lookup dialog
if (returnData.getBoolean(KeychainIntentService.RESULT_SIGNATURE_LOOKUP_KEY)
&& mLookupUnknownKey) {
mUnknownSignatureKeyId = returnData
.getLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID);
lookupUnknownKey(mUnknownSignatureKeyId);
return;
}
mSignatureKeyId = 0;
mSignatureLayout.setVisibility(View.GONE);
mReplyEnabled = false;
// build new action bar
supportInvalidateOptionsMenu();
Toast.makeText(DecryptActivity.this, R.string.decryption_successful,
Toast.LENGTH_SHORT).show();
if (mReturnResult) {
Intent intent = new Intent();
intent.putExtras(returnData);
setResult(RESULT_OK, intent);
finish();
return;
}
switch (mDecryptTarget) {
case Id.target.message:
String decryptedMessage = returnData
.getString(KeychainIntentService.RESULT_DECRYPTED_STRING);
mMessage.setText(decryptedMessage);
mMessage.setHorizontallyScrolling(false);
mReplyEnabled = false;
// build new action bar
supportInvalidateOptionsMenu();
break;
case Id.target.file:
if (mDeleteAfter.isChecked()) {
// Create and show dialog to delete original file
DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment
.newInstance(mInputFilename);
deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog");
}
break;
default:
// shouldn't happen
break;
}
if (returnData.getBoolean(KeychainIntentService.RESULT_SIGNATURE)) {
String userId = returnData
.getString(KeychainIntentService.RESULT_SIGNATURE_USER_ID);
mSignatureKeyId = returnData
.getLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID);
mUserIdRest.setText("id: "
+ PgpKeyHelper.convertKeyIdToHex(mSignatureKeyId));
if (userId == null) {
userId = getResources().getString(R.string.user_id_no_name);
}
String chunks[] = userId.split(" <", 2);
userId = chunks[0];
if (chunks.length > 1) {
mUserIdRest.setText("<" + chunks[1]);
}
mUserId.setText(userId);
if (returnData.getBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS)) {
mSignatureStatusImage.setImageResource(R.drawable.overlay_ok);
} else if (returnData
.getBoolean(KeychainIntentService.RESULT_SIGNATURE_UNKNOWN)) {
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
Toast.makeText(DecryptActivity.this,
R.string.unknown_signature_key_touch_to_look_up,
Toast.LENGTH_LONG).show();
} else {
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
}
mSignatureLayout.setVisibility(View.VISIBLE);
}
}
};
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(saveHandler);
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
// show progress dialog
saveHandler.showProgressDialog(this);
// start service with intent
startService(intent);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case Id.request.filename: {
if (resultCode == RESULT_OK && data != null) {
try {
String path = FileHelper.getPath(this, data.getData());
Log.d(Constants.TAG, "path=" + path);
mFilename.setText(path);
} catch (NullPointerException e) {
Log.e(Constants.TAG, "Nullpointer while retrieving path!");
}
}
return;
}
// this request is returned after LookupUnknownKeyDialogFragment started
// ImportKeysActivity and user looked uo key
case Id.request.look_up_key_id: {
Log.d(Constants.TAG, "Returning from Lookup Key...");
// decrypt again without lookup
mLookupUnknownKey = false;
decryptStart();
return;
}
default: {
break;
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
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