diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java new file mode 100644 index 000000000..492c0cf29 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java @@ -0,0 +1,261 @@ +/* + * 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.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.CheckBox; +import android.widget.EditText; + +import com.beardedhen.androidbootstrap.BootstrapButton; +import com.devspark.appmsg.AppMsg; + +import org.openintents.openpgp.OpenPgpSignatureResult; +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.Id; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.helper.FileHelper; +import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult; +import org.sufficientlysecure.keychain.service.KeychainIntentService; +import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler; +import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment; +import org.sufficientlysecure.keychain.util.Log; + +import java.io.File; + +public class DecryptFileFragment extends DecryptFragment { + public static final String ARG_FILENAME = "filename"; + + private static final int RESULT_CODE_FILE = 0x00007003; + + // view + private EditText mFilename; + private CheckBox mDeleteAfter; + private BootstrapButton mBrowse; + private BootstrapButton mDecryptButton; + + private String mInputFilename = null; + private String mOutputFilename = null; + + private FileDialogFragment mFileDialog; + + /** + * Inflate the layout for this fragment + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.decrypt_file_fragment, container, false); + + mFilename = (EditText) view.findViewById(R.id.decrypt_file_filename); + mBrowse = (BootstrapButton) view.findViewById(R.id.decrypt_file_browse); + mDeleteAfter = (CheckBox) view.findViewById(R.id.decrypt_file_delete_after_decryption); + mDecryptButton = (BootstrapButton) view.findViewById(R.id.decrypt_file_action_decrypt); + mBrowse.setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + FileHelper.openFile(DecryptFileFragment.this, mFilename.getText().toString(), "*/*", + RESULT_CODE_FILE); + } + }); + mDecryptButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + decryptAction(); + } + }); + + return view; + } + + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + String filename = getArguments().getString(ARG_FILENAME); + if (filename != null) { + mFilename.setText(filename); + } + } + + 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 decryptAction() { + String currentFilename = mFilename.getText().toString(); + if (mInputFilename == null || !mInputFilename.equals(currentFilename)) { + guessOutputFilename(); + } + + if (mInputFilename.equals("")) { + AppMsg.makeText(getActivity(), R.string.no_file_selected, AppMsg.STYLE_ALERT).show(); + return; + } + + if (mInputFilename.startsWith("file")) { + File file = new File(mInputFilename); + if (!file.exists() || !file.isFile()) { + AppMsg.makeText( + getActivity(), + getString(R.string.error_message, + getString(R.string.error_file_not_found)), AppMsg.STYLE_ALERT) + .show(); + return; + } + } + + askForOutputFilename(); + } + + 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(null); + } + } + }; + + // 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(getActivity().getSupportFragmentManager(), "fileDialog"); + } + + @Override + protected void decryptStart(String passphrase) { + Log.d(Constants.TAG, "decryptStart"); + + // Send all information needed to service to decrypt in other thread + Intent intent = new Intent(getActivity(), KeychainIntentService.class); + + // fill values for this action + Bundle data = new Bundle(); + + intent.setAction(KeychainIntentService.ACTION_DECRYPT_VERIFY); + + // data + 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); + + data.putString(KeychainIntentService.DECRYPT_PASSPHRASE, passphrase); + + intent.putExtra(KeychainIntentService.EXTRA_DATA, data); + + // Message is received after encrypting is done in KeychainIntentService + KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(), + getString(R.string.progress_decrypting), 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 returnData = message.getData(); + + PgpDecryptVerifyResult decryptVerifyResult = + returnData.getParcelable(KeychainIntentService.RESULT_DECRYPT_VERIFY_RESULT); + + if (PgpDecryptVerifyResult.KEY_PASSHRASE_NEEDED == decryptVerifyResult.getStatus()) { + showPassphraseDialog(decryptVerifyResult.getKeyIdPassphraseNeeded()); + } else if (PgpDecryptVerifyResult.SYMMETRIC_PASSHRASE_NEEDED == + decryptVerifyResult.getStatus()) { + showPassphraseDialog(Id.key.symmetric); + } else { + AppMsg.makeText(getActivity(), R.string.decryption_successful, + AppMsg.STYLE_INFO).show(); + + if (mDeleteAfter.isChecked()) { + // Create and show dialog to delete original file + DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment + .newInstance(mInputFilename); + deleteFileDialog.show(getActivity().getSupportFragmentManager(), "deleteDialog"); + } + + OpenPgpSignatureResult signatureResult = decryptVerifyResult.getSignatureResult(); + + // display signature result in activity + onSignatureResult(signatureResult); + } + } + } + }; + + // 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); + } + + @Override + public void onActivityResult(int requestCode, int resultCode, Intent data) { + switch (requestCode) { + case RESULT_CODE_FILE: { + if (resultCode == Activity.RESULT_OK && data != null) { + try { + String path = FileHelper.getPath(getActivity(), data.getData()); + Log.d(Constants.TAG, "path=" + path); + + mFilename.setText(path); + } catch (NullPointerException e) { + Log.e(Constants.TAG, "Nullpointer while retrieving path!"); + } + } + return; + } + + default: { + super.onActivityResult(requestCode, resultCode, data); + + break; + } + } + } +} |