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/*
* Copyright (C) 2013-2014 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.remote;
import android.app.PendingIntent;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.IBinder;
import android.os.ParcelFileDescriptor;
import org.openintents.openpgp.IOpenPgpService;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.OpenPgpSignatureResult;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openkeychain.nfc.NfcActivity;
import org.spongycastle.util.Arrays;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.pgp.PgpSignEncrypt;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAccounts;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.remote.ui.RemoteServiceActivity;
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
import org.sufficientlysecure.keychain.ui.ImportKeysActivity;
import org.sufficientlysecure.keychain.ui.ViewKeyActivity;
import org.sufficientlysecure.keychain.util.InputData;
import org.sufficientlysecure.keychain.util.Log;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.Set;
public class OpenPgpService extends RemoteService {
static final String[] KEYRING_PROJECTION =
new String[]{
KeyRings._ID,
KeyRings.MASTER_KEY_ID,
};
/**
* Search database for key ids based on emails.
*
* @param encryptionUserIds
* @return
*/
private Intent getKeyIdsFromEmails(Intent data, String[] encryptionUserIds) {
// find key ids to given emails in database
ArrayList<Long> keyIds = new ArrayList<Long>();
boolean missingUserIdsCheck = false;
boolean duplicateUserIdsCheck = false;
ArrayList<String> missingUserIds = new ArrayList<String>();
ArrayList<String> duplicateUserIds = new ArrayList<String>();
for (String email : encryptionUserIds) {
Uri uri = KeyRings.buildUnifiedKeyRingsFindByEmailUri(email);
Cursor cursor = getContentResolver().query(uri, KEYRING_PROJECTION, null, null, null);
try {
if (cursor != null && cursor.moveToFirst()) {
long id = cursor.getLong(cursor.getColumnIndex(KeyRings.MASTER_KEY_ID));
keyIds.add(id);
} else {
missingUserIdsCheck = true;
missingUserIds.add(email);
Log.d(Constants.TAG, "user id missing");
}
if (cursor != null && cursor.moveToNext()) {
duplicateUserIdsCheck = true;
duplicateUserIds.add(email);
Log.d(Constants.TAG, "more than one user id with the same email");
}
} finally {
if (cursor != null) {
cursor.close();
}
}
}
// convert to long[]
long[] keyIdsArray = new long[keyIds.size()];
for (int i = 0; i < keyIdsArray.length; i++) {
keyIdsArray[i] = keyIds.get(i);
}
// allow the user to verify pub key selection
if (missingUserIdsCheck || duplicateUserIdsCheck) {
// build PendingIntent
Intent intent = new Intent(getBaseContext(), RemoteServiceActivity.class);
intent.setAction(RemoteServiceActivity.ACTION_SELECT_PUB_KEYS);
intent.putExtra(RemoteServiceActivity.EXTRA_SELECTED_MASTER_KEY_IDS, keyIdsArray);
intent.putExtra(RemoteServiceActivity.EXTRA_MISSING_USER_IDS, missingUserIds);
intent.putExtra(RemoteServiceActivity.EXTRA_DUBLICATE_USER_IDS, duplicateUserIds);
intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
// return PendingIntent to be executed by client
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
return result;
}
if (keyIdsArray.length == 0) {
return null;
}
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_KEY_IDS, keyIdsArray);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
return result;
}
private Intent getNfcIntent(Intent data, byte[] hashToSign) {
// build PendingIntent for Yubikey NFC operations
Intent intent = new Intent(getBaseContext(), NfcActivity.class);
intent.setAction(NfcActivity.ACTION_SIGN_HASH);
intent.putExtra(NfcActivity.EXTRA_NFC_HASH_TO_SIGN, hashToSign);
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
// pass params through to activity that it can be returned again later to repeat pgp operation
intent.putExtra(NfcActivity.EXTRA_DATA, data);
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
// return PendingIntent to be executed by client
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
return result;
}
private Intent getPassphraseIntent(Intent data, long keyId) {
// build PendingIntent for passphrase input
Intent intent = new Intent(getBaseContext(), RemoteServiceActivity.class);
intent.setAction(RemoteServiceActivity.ACTION_CACHE_PASSPHRASE);
intent.putExtra(RemoteServiceActivity.EXTRA_SECRET_KEY_ID, keyId);
// pass params through to activity that it can be returned again later to repeat pgp operation
intent.putExtra(RemoteServiceActivity.EXTRA_DATA, data);
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
// return PendingIntent to be executed by client
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
return result;
}
private Intent signImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, AccountSettings accSettings) {
try {
boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
// get passphrase from cache, if key has "no" passphrase, this returns an empty String
String passphrase;
if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
} else {
passphrase = PassphraseCacheService.getCachedPassphrase(getContext(), accSettings.getKeyId());
}
if (passphrase == null) {
// get PendingIntent for passphrase input, add it to given params and return to client
return getPassphraseIntent(data, accSettings.getKeyId());
}
byte[] nfcSignedHash = data.getByteArrayExtra(OpenPgpApi.EXTRA_NFC_SIGNED_HASH);
Date nfcCreationTimestamp = new Date(data.getLongExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, 0));
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
try {
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
// sign-only
PgpSignEncrypt.Builder builder = new PgpSignEncrypt.Builder(
new ProviderHelper(getContext()),
PgpHelper.getFullVersion(getContext()),
inputData, os);
builder.setEnableAsciiArmorOutput(asciiArmor)
.setSignatureHashAlgorithm(accSettings.getHashAlgorithm())
.setSignatureForceV3(false)
.setSignatureMasterKeyId(accSettings.getKeyId())
.setSignaturePassphrase(passphrase)
.setNfcState(nfcSignedHash, nfcCreationTimestamp);
// TODO: currently always assume cleartext input, no sign-only of binary currently!
builder.setCleartextInput(true);
try {
builder.build().execute();
// throw exceptions upwards to client with meaningful messages
} catch (PgpSignEncrypt.KeyExtractionException e) {
throw new Exception(getString(R.string.error_could_not_extract_private_key));
} catch (PgpSignEncrypt.NoPassphraseException e) {
throw new Exception(getString(R.string.error_no_signature_passphrase));
} catch (PgpSignEncrypt.WrongPassphraseException e) {
throw new Exception(getString(R.string.error_wrong_passphrase));
} catch (PgpSignEncrypt.NoSigningKeyException e) {
throw new Exception(getString(R.string.error_no_signature_key));
} catch (PgpSignEncrypt.NeedNfcDataException e) {
// return PendingIntent to execute NFC activity
// pass through the signature creation timestamp to be used again on second execution
// of PgpSignEncrypt when we have the signed hash!
data.putExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, e.mCreationTimestamp.getTime());
return getNfcIntent(data, e.mHashToSign);
}
} finally {
is.close();
os.close();
}
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
return result;
} catch (Exception e) {
Log.d(Constants.TAG, "signImpl", e);
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_ERROR,
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
}
private Intent encryptAndSignImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, AccountSettings accSettings,
boolean sign) {
try {
boolean asciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
long[] keyIds;
if (data.hasExtra(OpenPgpApi.EXTRA_KEY_IDS)) {
keyIds = data.getLongArrayExtra(OpenPgpApi.EXTRA_KEY_IDS);
} else if (data.hasExtra(OpenPgpApi.EXTRA_USER_IDS)) {
// get key ids based on given user ids
String[] userIds = data.getStringArrayExtra(OpenPgpApi.EXTRA_USER_IDS);
// give params through to activity...
Intent result = getKeyIdsFromEmails(data, userIds);
if (result.getIntExtra(OpenPgpApi.RESULT_CODE, 0) == OpenPgpApi.RESULT_CODE_SUCCESS) {
keyIds = result.getLongArrayExtra(OpenPgpApi.RESULT_KEY_IDS);
} else {
// if not success -> result contains a PendingIntent for user interaction
return result;
}
} else {
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_ERROR,
new OpenPgpError(OpenPgpError.GENERIC_ERROR,
"Missing parameter user_ids or key_ids!")
);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
// add own key for encryption
keyIds = Arrays.copyOf(keyIds, keyIds.length + 1);
keyIds[keyIds.length - 1] = accSettings.getKeyId();
// build InputData and write into OutputStream
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
try {
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
PgpSignEncrypt.Builder builder = new PgpSignEncrypt.Builder(
new ProviderHelper(getContext()),
PgpHelper.getFullVersion(getContext()),
inputData, os);
builder.setEnableAsciiArmorOutput(asciiArmor)
.setCompressionId(accSettings.getCompression())
.setSymmetricEncryptionAlgorithm(accSettings.getEncryptionAlgorithm())
.setEncryptionMasterKeyIds(keyIds);
if (sign) {
String passphrase;
if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
} else {
passphrase = PassphraseCacheService.getCachedPassphrase(getContext(),
accSettings.getKeyId());
}
if (passphrase == null) {
// get PendingIntent for passphrase input, add it to given params and return to client
return getPassphraseIntent(data, accSettings.getKeyId());
}
// sign and encrypt
builder.setSignatureHashAlgorithm(accSettings.getHashAlgorithm())
.setSignatureForceV3(false)
.setSignatureMasterKeyId(accSettings.getKeyId())
.setSignaturePassphrase(passphrase);
} else {
// encrypt only
builder.setSignatureMasterKeyId(Constants.key.none);
}
try {
// execute PGP operation!
builder.build().execute();
// throw exceptions upwards to client with meaningful messages
} catch (PgpSignEncrypt.KeyExtractionException e) {
throw new Exception(getString(R.string.error_could_not_extract_private_key));
} catch (PgpSignEncrypt.NoPassphraseException e) {
throw new Exception(getString(R.string.error_no_signature_passphrase));
} catch (PgpSignEncrypt.WrongPassphraseException e) {
throw new Exception(getString(R.string.error_wrong_passphrase));
} catch (PgpSignEncrypt.NoSigningKeyException e) {
throw new Exception(getString(R.string.error_no_signature_key));
}
} finally {
is.close();
os.close();
}
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
return result;
} catch (Exception e) {
Log.d(Constants.TAG, "encryptAndSignImpl", e);
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_ERROR,
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
}
private Intent decryptAndVerifyImpl(Intent data, ParcelFileDescriptor input,
ParcelFileDescriptor output, Set<Long> allowedKeyIds) {
try {
// Get Input- and OutputStream from ParcelFileDescriptor
InputStream is = new ParcelFileDescriptor.AutoCloseInputStream(input);
OutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(output);
Intent result = new Intent();
try {
String passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
long inputLength = is.available();
InputData inputData = new InputData(is, inputLength);
PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder(
new ProviderHelper(this),
new PgpDecryptVerify.PassphraseCache() {
@Override
public String getCachedPassphrase(long masterKeyId) {
return PassphraseCacheService.getCachedPassphrase(
OpenPgpService.this, masterKeyId);
}
},
inputData, os
);
builder.setAllowSymmetricDecryption(false) // no support for symmetric encryption
.setAllowedKeyIds(allowedKeyIds) // allow only private keys associated with
// accounts of this app
.setPassphrase(passphrase);
PgpDecryptVerifyResult decryptVerifyResult;
try {
// TODO: currently does not support binary signed-only content
decryptVerifyResult = builder.build().execute();
// throw exceptions upwards to client with meaningful messages
} catch (PgpDecryptVerify.InvalidDataException e) {
throw new Exception(getString(R.string.error_invalid_data));
} catch (PgpDecryptVerify.KeyExtractionException e) {
throw new Exception(getString(R.string.error_could_not_extract_private_key));
} catch (PgpDecryptVerify.WrongPassphraseException e) {
throw new Exception(getString(R.string.error_wrong_passphrase));
} catch (PgpDecryptVerify.NoSecretKeyException e) {
throw new Exception(getString(R.string.error_no_secret_key_found));
} catch (PgpDecryptVerify.IntegrityCheckFailedException e) {
throw new Exception(getString(R.string.error_integrity_check_failed));
}
if (PgpDecryptVerifyResult.KEY_PASSHRASE_NEEDED == decryptVerifyResult.getStatus()) {
// get PendingIntent for passphrase input, add it to given params and return to client
return getPassphraseIntent(data, decryptVerifyResult.getKeyIdPassphraseNeeded());
} else if (PgpDecryptVerifyResult.SYMMETRIC_PASSHRASE_NEEDED ==
decryptVerifyResult.getStatus()) {
throw new PgpGeneralException("Decryption of symmetric content not supported by API!");
}
OpenPgpSignatureResult signatureResult = decryptVerifyResult.getSignatureResult();
if (signatureResult != null) {
result.putExtra(OpenPgpApi.RESULT_SIGNATURE, signatureResult);
if (signatureResult.getStatus() == OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY) {
// If signature is unknown we return an _additional_ PendingIntent
// to retrieve the missing key
Intent intent = new Intent(getBaseContext(), ImportKeysActivity.class);
intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN);
intent.putExtra(ImportKeysActivity.EXTRA_KEY_ID, signatureResult.getKeyId());
intent.putExtra(ImportKeysActivity.EXTRA_PENDING_INTENT_DATA, data);
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
}
}
} finally {
is.close();
os.close();
}
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
return result;
} catch (Exception e) {
Log.d(Constants.TAG, "decryptAndVerifyImpl", e);
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_ERROR,
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
}
private Intent getKeyImpl(Intent data) {
try {
long masterKeyId = data.getLongExtra(OpenPgpApi.EXTRA_KEY_ID, 0);
try {
// try to find key, throws NotFoundException if not in db!
mProviderHelper.getWrappedPublicKeyRing(masterKeyId);
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
// also return PendingIntent that opens the key view activity
Intent intent = new Intent(getBaseContext(), ViewKeyActivity.class);
intent.setData(KeyRings.buildGenericKeyRingUri(masterKeyId));
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
return result;
} catch (ProviderHelper.NotFoundException e) {
Intent result = new Intent();
// If keys are not in db we return an additional PendingIntent
// to retrieve the missing key
Intent intent = new Intent(getBaseContext(), ImportKeysActivity.class);
intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN);
intent.putExtra(ImportKeysActivity.EXTRA_KEY_ID, masterKeyId);
intent.putExtra(ImportKeysActivity.EXTRA_PENDING_INTENT_DATA, data);
PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT);
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED);
return result;
}
} catch (Exception e) {
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_ERROR,
new OpenPgpError(OpenPgpError.GENERIC_ERROR, e.getMessage()));
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
}
private Intent getKeyIdsImpl(Intent data) {
// if data already contains key ids extra GET_KEY_IDS has been executed again
// after user interaction. Then, we just need to return the array again!
if (data.hasExtra(OpenPgpApi.EXTRA_KEY_IDS)) {
long[] keyIdsArray = data.getLongArrayExtra(OpenPgpApi.EXTRA_KEY_IDS);
Intent result = new Intent();
result.putExtra(OpenPgpApi.RESULT_KEY_IDS, keyIdsArray);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
return result;
} else {
// get key ids based on given user ids
String[] userIds = data.getStringArrayExtra(OpenPgpApi.EXTRA_USER_IDS);
return getKeyIdsFromEmails(data, userIds);
}
}
/**
* Check requirements:
* - params != null
* - has supported API version
* - is allowed to call the service (access has been granted)
*
* @param data
* @return null if everything is okay, or a Bundle with an error/PendingIntent
*/
private Intent checkRequirements(Intent data) {
// params Bundle is required!
if (data == null) {
Intent result = new Intent();
OpenPgpError error = new OpenPgpError(OpenPgpError.GENERIC_ERROR, "params Bundle required!");
result.putExtra(OpenPgpApi.RESULT_ERROR, error);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
// version code is required and needs to correspond to version code of service!
if (data.getIntExtra(OpenPgpApi.EXTRA_API_VERSION, -1) != OpenPgpApi.API_VERSION) {
Intent result = new Intent();
OpenPgpError error = new OpenPgpError
(OpenPgpError.INCOMPATIBLE_API_VERSIONS, "Incompatible API versions!");
result.putExtra(OpenPgpApi.RESULT_ERROR, error);
result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR);
return result;
}
// check if caller is allowed to access openpgp keychain
Intent result = isAllowed(data);
if (result != null) {
return result;
}
return null;
}
// TODO: multi-threading
private final IOpenPgpService.Stub mBinder = new IOpenPgpService.Stub() {
@Override
public Intent execute(Intent data, ParcelFileDescriptor input, ParcelFileDescriptor output) {
Intent errorResult = checkRequirements(data);
if (errorResult != null) {
return errorResult;
}
String accName;
if (data.getStringExtra(OpenPgpApi.EXTRA_ACCOUNT_NAME) != null) {
accName = data.getStringExtra(OpenPgpApi.EXTRA_ACCOUNT_NAME);
} else {
accName = "default";
}
final AccountSettings accSettings = getAccSettings(accName);
if (accSettings == null) {
return getCreateAccountIntent(data, accName);
}
String action = data.getAction();
if (OpenPgpApi.ACTION_SIGN.equals(action)) {
return signImpl(data, input, output, accSettings);
} else if (OpenPgpApi.ACTION_ENCRYPT.equals(action)) {
return encryptAndSignImpl(data, input, output, accSettings, false);
} else if (OpenPgpApi.ACTION_SIGN_AND_ENCRYPT.equals(action)) {
return encryptAndSignImpl(data, input, output, accSettings, true);
} else if (OpenPgpApi.ACTION_DECRYPT_VERIFY.equals(action)) {
String currentPkg = getCurrentCallingPackage();
Set<Long> allowedKeyIds =
mProviderHelper.getAllKeyIdsForApp(
ApiAccounts.buildBaseUri(currentPkg));
return decryptAndVerifyImpl(data, input, output, allowedKeyIds);
} else if (OpenPgpApi.ACTION_GET_KEY.equals(action)) {
return getKeyImpl(data);
} else if (OpenPgpApi.ACTION_GET_KEY_IDS.equals(action)) {
return getKeyIdsImpl(data);
} else {
return null;
}
}
};
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
}
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