diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java new file mode 100644 index 000000000..ba11074fc --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java @@ -0,0 +1,259 @@ +/* + * 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.app.ProgressDialog; +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.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.EditText; + +import com.beardedhen.androidbootstrap.BootstrapButton; +import com.devspark.appmsg.AppMsg; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.compatibility.ClipboardReflection; +import org.sufficientlysecure.keychain.helper.Preferences; +import org.sufficientlysecure.keychain.service.KeychainIntentService; +import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler; +import org.sufficientlysecure.keychain.service.PassphraseCacheService; +import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment; +import org.sufficientlysecure.keychain.util.Log; + +public class EncryptMessageFragment extends Fragment { + public static final String ARG_TEXT = "text"; + + private EditText mMessage = null; + private BootstrapButton mEncryptShare; + private BootstrapButton mEncryptClipboard; + + private EncryptActivityInterface mEncryptInterface; + + + @Override + public void onAttach(Activity activity) { + super.onAttach(activity); + try { + mEncryptInterface = (EncryptActivityInterface) activity; + } catch (ClassCastException e) { + throw new ClassCastException(activity.toString() + " must implement EncryptActivityInterface"); + } + } + + /** + * Inflate the layout for this fragment + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.encrypt_message_fragment, container, false); + + mMessage = (EditText) view.findViewById(R.id.message); + mEncryptClipboard = (BootstrapButton) view.findViewById(R.id.action_encrypt_clipboard); + mEncryptShare = (BootstrapButton) view.findViewById(R.id.action_encrypt_share); + mEncryptClipboard.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + encryptClicked(true); + } + }); + mEncryptShare.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + encryptClicked(false); + } + }); + + return view; + } + + + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + String text = getArguments().getString(ARG_TEXT); + if (text != null) { + mMessage.setText(text); + } + } + + /** + * Fixes bad message characters for gmail + * + * @param message + * @return + */ + private String fixBadCharactersForGmail(String message) { + // fix the message a bit, trailing spaces and newlines break stuff, + // because GMail sends as HTML and such things fuck up the + // signature, + // TODO: things like "<" and ">" also fuck up the signature + message = message.replaceAll(" +\n", "\n"); + message = message.replaceAll("\n\n+", "\n\n"); + message = message.replaceFirst("^\n+", ""); + // make sure there'll be exactly one newline at the end + message = message.replaceFirst("\n*$", "\n"); + + return message; + } + + private void encryptClicked(final boolean toClipboard) { + if (mEncryptInterface.isModeSymmetric()) { + // symmetric encryption + + boolean gotPassphrase = (mEncryptInterface.getPassphrase() != null + && mEncryptInterface.getPassphrase().length() != 0); + if (!gotPassphrase) { + AppMsg.makeText(getActivity(), R.string.passphrase_must_not_be_empty, AppMsg.STYLE_ALERT) + .show(); + return; + } + + if (!mEncryptInterface.getPassphrase().equals(mEncryptInterface.getPassphraseAgain())) { + AppMsg.makeText(getActivity(), R.string.passphrases_do_not_match, AppMsg.STYLE_ALERT).show(); + return; + } + + } else { + // asymmetric encryption + + boolean gotEncryptionKeys = (mEncryptInterface.getEncryptionKeys() != null + && mEncryptInterface.getEncryptionKeys().length > 0); + + if (!gotEncryptionKeys && mEncryptInterface.getSignatureKey() == 0) { + AppMsg.makeText(getActivity(), R.string.select_encryption_or_signature_key, + AppMsg.STYLE_ALERT).show(); + return; + } + + if (mEncryptInterface.getSignatureKey() != 0 && + PassphraseCacheService.getCachedPassphrase(getActivity(), + mEncryptInterface.getSignatureKey()) == null) { + PassphraseDialogFragment.show(getActivity(), mEncryptInterface.getSignatureKey(), + new Handler() { + @Override + public void handleMessage(Message message) { + if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) { + encryptStart(toClipboard); + } + } + }); + + return; + } + } + + encryptStart(toClipboard); + } + + private void encryptStart(final boolean toClipboard) { + // Send all information needed to service to edit key in other thread + Intent intent = new Intent(getActivity(), KeychainIntentService.class); + + intent.setAction(KeychainIntentService.ACTION_ENCRYPT_SIGN); + + // fill values for this action + Bundle data = new Bundle(); + + data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_BYTES); + + String message = mMessage.getText().toString(); + + if (mEncryptInterface.isModeSymmetric()) { + Log.d(Constants.TAG, "Symmetric encryption enabled!"); + String passphrase = mEncryptInterface.getPassphrase(); + if (passphrase.length() == 0) { + passphrase = null; + } + data.putString(KeychainIntentService.ENCRYPT_SYMMETRIC_PASSPHRASE, passphrase); + } else { + data.putLong(KeychainIntentService.ENCRYPT_SIGNATURE_KEY_ID, + mEncryptInterface.getSignatureKey()); + data.putLongArray(KeychainIntentService.ENCRYPT_ENCRYPTION_KEYS_IDS, + mEncryptInterface.getEncryptionKeys()); + + boolean signOnly = (mEncryptInterface.getEncryptionKeys() == null + || mEncryptInterface.getEncryptionKeys().length == 0); + if (signOnly) { + message = fixBadCharactersForGmail(message); + } + } + + data.putByteArray(KeychainIntentService.ENCRYPT_MESSAGE_BYTES, message.getBytes()); + + data.putBoolean(KeychainIntentService.ENCRYPT_USE_ASCII_ARMOR, true); + + int compressionId = Preferences.getPreferences(getActivity()).getDefaultMessageCompression(); + data.putInt(KeychainIntentService.ENCRYPT_COMPRESSION_ID, compressionId); +// data.putBoolean(KeychainIntentService.ENCRYPT_GENERATE_SIGNATURE, mGenerateSignature); + + intent.putExtra(KeychainIntentService.EXTRA_DATA, data); + + // Message is received after encrypting is done in KeychainIntentService + KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(), + getString(R.string.progress_encrypting), ProgressDialog.STYLE_HORIZONTAL) { + public void handleMessage(Message message) { + // handle messages by standard KeychainIntentServiceHandler first + super.handleMessage(message); + + if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) { + // get returned data bundle + Bundle data = message.getData(); + + String output = new String(data.getByteArray(KeychainIntentService.RESULT_BYTES)); + Log.d(Constants.TAG, "output: " + output); + + if (toClipboard) { + ClipboardReflection.copyToClipboard(getActivity(), output); + AppMsg.makeText(getActivity(), + R.string.encryption_to_clipboard_successful, AppMsg.STYLE_INFO) + .show(); + } else { + Intent sendIntent = new Intent(Intent.ACTION_SEND); + + // Type is set to text/plain so that encrypted messages can + // be sent with Whatsapp, Hangouts, SMS etc... + sendIntent.setType("text/plain"); + + sendIntent.putExtra(Intent.EXTRA_TEXT, output); + startActivity(Intent.createChooser(sendIntent, + getString(R.string.title_send_email))); + } + } + } + }; + + // Create a new Messenger for the communication back + Messenger messenger = new Messenger(saveHandler); + intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger); + + // show progress dialog + saveHandler.showProgressDialog(getActivity()); + + // start service with intent + getActivity().startService(intent); + } +} |