diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptTextActivity.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptTextActivity.java | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptTextActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptTextActivity.java new file mode 100644 index 000000000..5d46b351b --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptTextActivity.java @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de> + * Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org> + * + * 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.content.Intent; +import android.os.Bundle; +import android.support.v7.app.ActionBarActivity; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.api.OpenKeychainIntents; +import org.sufficientlysecure.keychain.compatibility.ClipboardReflection; +import org.sufficientlysecure.keychain.pgp.PgpHelper; +import org.sufficientlysecure.keychain.util.Log; +import org.sufficientlysecure.keychain.util.Notify; + +import java.util.regex.Matcher; + +public class DecryptTextActivity extends ActionBarActivity { + + /* Intents */ + public static final String ACTION_DECRYPT_TEXT = OpenKeychainIntents.DECRYPT_TEXT; + public static final String EXTRA_TEXT = OpenKeychainIntents.DECRYPT_EXTRA_TEXT; + + // intern + public static final String ACTION_DECRYPT_FROM_CLIPBOARD = Constants.INTENT_PREFIX + "DECRYPT_TEXT_FROM_CLIPBOARD"; + + DecryptTextFragment mFragment; + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + setContentView(R.layout.decrypt_text_activity); + + // Handle intent actions + handleActions(savedInstanceState, getIntent()); + } + + /** + * Handles all actions with this intent + * + * @param intent + */ + private void handleActions(Bundle savedInstanceState, Intent intent) { + String action = intent.getAction(); + Bundle extras = intent.getExtras(); + String type = intent.getType(); + + if (extras == null) { + extras = new Bundle(); + } + + String textData = null; + + /* + * Android's Action + */ + if (Intent.ACTION_SEND.equals(action) && type != null) { + // When sending to Keychain Decrypt 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 + // executeServiceMethod ACTION_DECRYPT_TEXT in main actions + textData = sharedText; + } + } + } + + /** + * Main Actions + */ + textData = extras.getString(EXTRA_TEXT); + if (ACTION_DECRYPT_TEXT.equals(action) && textData != null) { + Log.d(Constants.TAG, "textData not 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", " "); + } else { + matcher = PgpHelper.PGP_CLEARTEXT_SIGNATURE.matcher(textData); + if (matcher.matches()) { + Log.d(Constants.TAG, "PGP_CLEARTEXT_SIGNATURE matched"); + textData = matcher.group(1); + // replace non breakable spaces + textData = textData.replaceAll("\\xa0", " "); + } else { + Notify.showNotify(this, R.string.error_invalid_data, Notify.Style.ERROR); + Log.d(Constants.TAG, "Nothing matched!"); + } + } + } else if (ACTION_DECRYPT_FROM_CLIPBOARD.equals(action)) { + CharSequence clipboardText = ClipboardReflection.getClipboardText(this); + + // only decrypt if clipboard content is available and a pgp message or cleartext signature + if (clipboardText != null) { + Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(clipboardText); + if (!matcher.matches()) { + matcher = PgpHelper.PGP_CLEARTEXT_SIGNATURE.matcher(clipboardText); + } + if (matcher.matches()) { + textData = matcher.group(1); + } else { + Notify.showNotify(this, R.string.error_invalid_data, Notify.Style.ERROR); + } + } else { + Notify.showNotify(this, R.string.error_invalid_data, Notify.Style.ERROR); + } + } else if (ACTION_DECRYPT_TEXT.equals(action)) { + Log.e(Constants.TAG, + "Include the extra 'text' in your Intent!"); + } + + loadFragment(savedInstanceState, textData); + } + + + private void loadFragment(Bundle savedInstanceState, String ciphertext) { + // However, if we're being restored from a previous state, + // then we don't need to do anything and should return or else + // we could end up with overlapping fragments. + if (savedInstanceState != null) { + return; + } + + // Create an instance of the fragment + mFragment = DecryptTextFragment.newInstance(ciphertext); + + // Add the fragment to the 'fragment_container' FrameLayout + // NOTE: We use commitAllowingStateLoss() to prevent weird crashes! + getSupportFragmentManager().beginTransaction() + .replace(R.id.decrypt_text_fragment_container, mFragment) + .commitAllowingStateLoss(); + // do it immediately! + getSupportFragmentManager().executePendingTransactions(); + } + +} |