diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service')
2 files changed, 144 insertions, 55 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java index a7115a53d..d6c470e11 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java @@ -86,6 +86,8 @@ public class KeychainIntentService extends IntentService public static final String ACTION_DECRYPT_VERIFY = Constants.INTENT_PREFIX + "DECRYPT_VERIFY"; + public static final String ACTION_DECRYPT_METADATA = Constants.INTENT_PREFIX + "DECRYPT_METADATA"; + public static final String ACTION_SAVE_KEYRING = Constants.INTENT_PREFIX + "SAVE_KEYRING"; public static final String ACTION_DELETE_FILE_SECURELY = Constants.INTENT_PREFIX @@ -241,16 +243,17 @@ public class KeychainIntentService extends IntentService data.putInt(SELECTED_URI, i); InputData inputData = createEncryptInputData(data); OutputStream outStream = createCryptOutputStream(data); + String originalFilename = getOriginalFilename(data); /* Operation */ PgpSignEncrypt.Builder builder = new PgpSignEncrypt.Builder( new ProviderHelper(this), - PgpHelper.getFullVersion(this), inputData, outStream); builder.setProgressable(this); builder.setEnableAsciiArmorOutput(useAsciiArmor) + .setVersionHeader(PgpHelper.getVersionForHeader(this)) .setCompressionId(compressionId) .setSymmetricEncryptionAlgorithm( Preferences.getPreferences(this).getDefaultEncryptionAlgorithm()) @@ -261,7 +264,8 @@ public class KeychainIntentService extends IntentService .setSignatureHashAlgorithm( Preferences.getPreferences(this).getDefaultHashAlgorithm()) .setSignaturePassphrase( - PassphraseCacheService.getCachedPassphrase(this, signatureKeyId)); + PassphraseCacheService.getCachedPassphrase(this, signatureKeyId)) + .setOriginalFilename(originalFilename); // this assumes that the bytes are cleartext (valid for current implementation!) if (source == IO_BYTES) { @@ -302,15 +306,19 @@ public class KeychainIntentService extends IntentService new ProviderHelper(this), new PgpDecryptVerify.PassphraseCache() { @Override - public String getCachedPassphrase(long masterKeyId) { - return PassphraseCacheService.getCachedPassphrase( - KeychainIntentService.this, masterKeyId); + public String getCachedPassphrase(long masterKeyId) throws PgpDecryptVerify.NoSecretKeyException { + try { + return PassphraseCacheService.getCachedPassphrase( + KeychainIntentService.this, masterKeyId); + } catch (PassphraseCacheService.KeyNotFoundException e) { + throw new PgpDecryptVerify.NoSecretKeyException(); + } } }, - inputData, outStream); - builder.setProgressable(this); - - builder.setAllowSymmetricDecryption(true) + inputData, outStream + ); + builder.setProgressable(this) + .setAllowSymmetricDecryption(true) .setPassphrase(passphrase); PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute(); @@ -329,6 +337,50 @@ public class KeychainIntentService extends IntentService } catch (Exception e) { sendErrorToHandler(e); } + } else if (ACTION_DECRYPT_METADATA.equals(action)) { + try { + /* Input */ + String passphrase = data.getString(DECRYPT_PASSPHRASE); + + InputData inputData = createDecryptInputData(data); + + /* Operation */ + + Bundle resultData = new Bundle(); + + // verifyText and decrypt returning additional resultData values for the + // verification of signatures + PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder( + new ProviderHelper(this), + new PgpDecryptVerify.PassphraseCache() { + @Override + public String getCachedPassphrase(long masterKeyId) throws PgpDecryptVerify.NoSecretKeyException { + try { + return PassphraseCacheService.getCachedPassphrase( + KeychainIntentService.this, masterKeyId); + } catch (PassphraseCacheService.KeyNotFoundException e) { + throw new PgpDecryptVerify.NoSecretKeyException(); + } + } + }, + inputData, null + ); + builder.setProgressable(this) + .setAllowSymmetricDecryption(true) + .setPassphrase(passphrase) + .setDecryptMetadataOnly(true); + + PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute(); + + resultData.putParcelable(RESULT_DECRYPT_VERIFY_RESULT, decryptVerifyResult); + + /* Output */ + OtherHelper.logDebugBundle(resultData, "resultData"); + + sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY, resultData); + } catch (Exception e) { + sendErrorToHandler(e); + } } else if (ACTION_SAVE_KEYRING.equals(action)) { try { /* Input */ @@ -355,7 +407,7 @@ public class KeychainIntentService extends IntentService UncachedKeyRing ring = result.getRing(); - providerHelper.saveSecretKeyRing(ring, new ProgressScaler(this, 60, 95, 100)); + providerHelper.saveSecretKeyRing(ring, new ProgressScaler(this, 60, 95, 100)); // cache new passphrase if (saveParcel.mNewPassphrase != null) { @@ -402,7 +454,7 @@ public class KeychainIntentService extends IntentService } else { // get entries from cached file FileImportCache<ParcelableKeyRing> cache = - new FileImportCache<ParcelableKeyRing>(this); + new FileImportCache<ParcelableKeyRing>(this); entries = cache.readCacheIntoList(); } @@ -575,7 +627,7 @@ public class KeychainIntentService extends IntentService CanonicalizedPublicKeyRing publicRing = providerHelper.getCanonicalizedPublicKeyRing(pubKeyId); CanonicalizedSecretKeyRing secretKeyRing = providerHelper.getCanonicalizedSecretKeyRing(masterKeyId); CanonicalizedSecretKey certificationKey = secretKeyRing.getSecretKey(); - if(!certificationKey.unlock(signaturePassphrase)) { + if (!certificationKey.unlock(signaturePassphrase)) { throw new PgpGeneralException("Error extracting key (bad passphrase?)"); } UncachedKeyRing newRing = certificationKey.certifyUserIds(publicRing, userIds); @@ -728,6 +780,27 @@ public class KeychainIntentService extends IntentService } } + private String getOriginalFilename(Bundle data) throws PgpGeneralException, FileNotFoundException { + int target = data.getInt(TARGET); + switch (target) { + case IO_BYTES: + return ""; + + case IO_URI: + Uri providerUri = data.getParcelable(ENCRYPT_INPUT_URI); + + return FileHelper.getFilename(this, providerUri); + + case IO_URIS: + providerUri = data.<Uri>getParcelableArrayList(ENCRYPT_INPUT_URIS).get(data.getInt(SELECTED_URI)); + + return FileHelper.getFilename(this, providerUri); + + default: + throw new PgpGeneralException("No target choosen!"); + } + } + private OutputStream createCryptOutputStream(Bundle data) throws PgpGeneralException, FileNotFoundException { int target = data.getInt(TARGET); switch (target) { diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java index e813ca26c..8cd9876eb 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java @@ -77,12 +77,24 @@ public class PassphraseCacheService extends Service { private static final int NOTIFICATION_ID = 1; + private static final int MSG_PASSPHRASE_CACHE_GET_OKAY = 1; + private static final int MSG_PASSPHRASE_CACHE_GET_KEY_NO_FOUND = 2; + private BroadcastReceiver mIntentReceiver; private LongSparseArray<CachedPassphrase> mPassphraseCache = new LongSparseArray<CachedPassphrase>(); Context mContext; + public static class KeyNotFoundException extends Exception { + public KeyNotFoundException() { + } + + public KeyNotFoundException(String name) { + super(name); + } + } + /** * This caches a new passphrase in memory by sending a new command to the service. An android * service is only run once. Thus, when the service is already started, new commands just add @@ -115,24 +127,23 @@ public class PassphraseCacheService extends Service { * @param keyId * @return passphrase or null (if no passphrase is cached for this keyId) */ - public static String getCachedPassphrase(Context context, long keyId) { + public static String getCachedPassphrase(Context context, long keyId) throws KeyNotFoundException { Log.d(Constants.TAG, "PassphraseCacheService.getCachedPassphrase() get masterKeyId for " + keyId); Intent intent = new Intent(context, PassphraseCacheService.class); intent.setAction(ACTION_PASSPHRASE_CACHE_GET); final Object mutex = new Object(); - final Bundle returnBundle = new Bundle(); + final Message returnMessage = Message.obtain(); HandlerThread handlerThread = new HandlerThread("getPassphraseThread"); handlerThread.start(); Handler returnHandler = new Handler(handlerThread.getLooper()) { @Override public void handleMessage(Message message) { - if (message.obj != null) { - String passphrase = ((Bundle) message.obj).getString(EXTRA_PASSPHRASE); - returnBundle.putString(EXTRA_PASSPHRASE, passphrase); - } + // copy over result to handle after mutex.wait + returnMessage.what = message.what; + returnMessage.copyFrom(message); synchronized (mutex) { mutex.notify(); } @@ -156,10 +167,13 @@ public class PassphraseCacheService extends Service { } } - if (returnBundle.containsKey(EXTRA_PASSPHRASE)) { - return returnBundle.getString(EXTRA_PASSPHRASE); - } else { - return null; + switch (returnMessage.what) { + case MSG_PASSPHRASE_CACHE_GET_OKAY: + return returnMessage.getData().getString(EXTRA_PASSPHRASE); + case MSG_PASSPHRASE_CACHE_GET_KEY_NO_FOUND: + throw new KeyNotFoundException(); + default: + throw new KeyNotFoundException("should not happen!"); } } @@ -169,7 +183,7 @@ public class PassphraseCacheService extends Service { * @param keyId * @return */ - private String getCachedPassphraseImpl(long keyId) { + private String getCachedPassphraseImpl(long keyId) throws ProviderHelper.NotFoundException { // passphrase for symmetric encryption? if (keyId == Constants.key.symmetric) { Log.d(Constants.TAG, "PassphraseCacheService.getCachedPassphraseImpl() for symmetric encryption"); @@ -182,46 +196,41 @@ public class PassphraseCacheService extends Service { } // try to get master key id which is used as an identifier for cached passphrases - try { - Log.d(Constants.TAG, "PassphraseCacheService.getCachedPassphraseImpl() for masterKeyId " + keyId); - CanonicalizedSecretKeyRing key = new ProviderHelper(this).getCanonicalizedSecretKeyRing( - KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(keyId)); - // no passphrase needed? just add empty string and return it, then - if (!key.hasPassphrase()) { - Log.d(Constants.TAG, "Key has no passphrase! Caches and returns empty passphrase!"); + Log.d(Constants.TAG, "PassphraseCacheService.getCachedPassphraseImpl() for masterKeyId " + keyId); + CanonicalizedSecretKeyRing key = new ProviderHelper(this).getCanonicalizedSecretKeyRing( + KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(keyId)); - try { - addCachedPassphrase(this, keyId, "", key.getPrimaryUserIdWithFallback()); - } catch (PgpGeneralException e) { - Log.d(Constants.TAG, "PgpGeneralException occured"); - } - return ""; - } + // no passphrase needed? just add empty string and return it, then + if (!key.hasPassphrase()) { + Log.d(Constants.TAG, "Key has no passphrase! Caches and returns empty passphrase!"); - // TODO: HACK + // TODO: HACK for yubikeys if (key.getSecretKey().getSecretKey().getS2K().getType() == S2K.GNU_DUMMY_S2K && key.getSecretKey().getSecretKey().getS2K().getProtectionMode() == 2) { // NFC! return "123456"; } - // get cached passphrase - CachedPassphrase cachedPassphrase = mPassphraseCache.get(keyId); - if (cachedPassphrase == null) { - Log.d(Constants.TAG, "PassphraseCacheService: Passphrase not (yet) cached, returning null"); - // not really an error, just means the passphrase is not cached but not empty either - return null; + try { + addCachedPassphrase(this, keyId, "", key.getPrimaryUserIdWithFallback()); + } catch (PgpGeneralException e) { + Log.d(Constants.TAG, "PgpGeneralException occured"); } + return ""; + } - // set it again to reset the cache life cycle - Log.d(Constants.TAG, "PassphraseCacheService: Cache passphrase again when getting it!"); - addCachedPassphrase(this, keyId, cachedPassphrase.getPassphrase(), cachedPassphrase.getPrimaryUserID()); - return cachedPassphrase.getPassphrase(); - - } catch (ProviderHelper.NotFoundException e) { - Log.e(Constants.TAG, "PassphraseCacheService: Passphrase for unknown key was requested!"); + // get cached passphrase + CachedPassphrase cachedPassphrase = mPassphraseCache.get(keyId); + if (cachedPassphrase == null) { + Log.d(Constants.TAG, "PassphraseCacheService: Passphrase not (yet) cached, returning null"); + // not really an error, just means the passphrase is not cached but not empty either return null; } + + // set it again to reset the cache life cycle + Log.d(Constants.TAG, "PassphraseCacheService: Cache passphrase again when getting it!"); + addCachedPassphrase(this, keyId, cachedPassphrase.getPassphrase(), cachedPassphrase.getPrimaryUserID()); + return cachedPassphrase.getPassphrase(); } /** @@ -303,12 +312,19 @@ public class PassphraseCacheService extends Service { long keyId = intent.getLongExtra(EXTRA_KEY_ID, -1); Messenger messenger = intent.getParcelableExtra(EXTRA_MESSENGER); - String passphrase = getCachedPassphraseImpl(keyId); Message msg = Message.obtain(); - Bundle bundle = new Bundle(); - bundle.putString(EXTRA_PASSPHRASE, passphrase); - msg.obj = bundle; + try { + String passphrase = getCachedPassphraseImpl(keyId); + msg.what = MSG_PASSPHRASE_CACHE_GET_OKAY; + Bundle bundle = new Bundle(); + bundle.putString(EXTRA_PASSPHRASE, passphrase); + msg.setData(bundle); + } catch (ProviderHelper.NotFoundException e) { + Log.e(Constants.TAG, "PassphraseCacheService: Passphrase for unknown key was requested!"); + msg.what = MSG_PASSPHRASE_CACHE_GET_KEY_NO_FOUND; + } + try { messenger.send(msg); } catch (RemoteException e) { |