diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java new file mode 100644 index 000000000..470c85715 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java @@ -0,0 +1,380 @@ +/* + * 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.net.Uri; +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.ArrayAdapter; +import android.widget.CheckBox; +import android.widget.EditText; +import android.widget.Spinner; + +import com.beardedhen.androidbootstrap.BootstrapButton; +import com.devspark.appmsg.AppMsg; + +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.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.DeleteFileDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.FileDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment; +import org.sufficientlysecure.keychain.util.Choice; +import org.sufficientlysecure.keychain.util.Log; + +import java.io.File; + +public class EncryptFileFragment extends Fragment { + public static final String ARG_FILENAME = "filename"; + public static final String ARG_ASCII_ARMOR = "ascii_armor"; + + private static final int RESULT_CODE_FILE = 0x00007003; + + private EncryptActivityInterface mEncryptInterface; + + // view + private CheckBox mAsciiArmor = null; + private Spinner mFileCompression = null; + private EditText mFilename = null; + private CheckBox mDeleteAfter = null; + private CheckBox mShareAfter = null; + private BootstrapButton mBrowse = null; + private BootstrapButton mEncryptFile; + + private FileDialogFragment mFileDialog; + + // model + private String mInputFilename = null; + private String mOutputFilename = null; + + @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_file_fragment, container, false); + + mEncryptFile = (BootstrapButton) view.findViewById(R.id.action_encrypt_file); + mEncryptFile.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + encryptClicked(); + } + }); + + mFilename = (EditText) view.findViewById(R.id.filename); + mBrowse = (BootstrapButton) view.findViewById(R.id.btn_browse); + mBrowse.setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + FileHelper.openFile(EncryptFileFragment.this, mFilename.getText().toString(), "*/*", + Id.request.filename); + } + }); + + mFileCompression = (Spinner) view.findViewById(R.id.fileCompression); + Choice[] choices = new Choice[] { + new Choice(Id.choice.compression.none, getString(R.string.choice_none) + " (" + + getString(R.string.compression_fast) + ")"), + new Choice(Id.choice.compression.zip, "ZIP (" + + getString(R.string.compression_fast) + ")"), + new Choice(Id.choice.compression.zlib, "ZLIB (" + + getString(R.string.compression_fast) + ")"), + new Choice(Id.choice.compression.bzip2, "BZIP2 (" + + getString(R.string.compression_very_slow) + ")"), + }; + ArrayAdapter<Choice> adapter = new ArrayAdapter<Choice>(getActivity(), + android.R.layout.simple_spinner_item, choices); + adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + mFileCompression.setAdapter(adapter); + + int defaultFileCompression = Preferences.getPreferences(getActivity()).getDefaultFileCompression(); + for (int i = 0; i < choices.length; ++i) { + if (choices[i].getId() == defaultFileCompression) { + mFileCompression.setSelection(i); + break; + } + } + + mDeleteAfter = (CheckBox) view.findViewById(R.id.deleteAfterEncryption); + mShareAfter = (CheckBox) view.findViewById(R.id.shareAfterEncryption); + + mAsciiArmor = (CheckBox) view.findViewById(R.id.asciiArmor); + mAsciiArmor.setChecked(Preferences.getPreferences(getActivity()).getDefaultAsciiArmor()); + + return view; + } + + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + String filename = getArguments().getString(ARG_FILENAME); + if (filename != null) { + mFilename.setText(filename); + } + boolean asciiArmor = getArguments().getBoolean(ARG_ASCII_ARMOR); + if (asciiArmor) { + mAsciiArmor.setChecked(asciiArmor); + } + } + + /** + * Guess output filename based on input path + * + * @param path + * @return Suggestion for output filename + */ + private String guessOutputFilename(String path) { + // output in the same directory but with additional ending + File file = new File(path); + String ending = (mAsciiArmor.isChecked() ? ".asc" : ".gpg"); + String outputFilename = file.getParent() + File.separator + file.getName() + ending; + + return outputFilename; + } + + private void showOutputFileDialog() { + // Message is received after file is selected + 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); + encryptStart(); + } + } + }; + + // Create a new Messenger for the communication back + Messenger messenger = new Messenger(returnHandler); + + mFileDialog = FileDialogFragment.newInstance(messenger, + getString(R.string.title_encrypt_to_file), + getString(R.string.specify_file_to_encrypt_to), mOutputFilename, null); + + mFileDialog.show(getActivity().getSupportFragmentManager(), "fileDialog"); + } + + private void encryptClicked() { + String currentFilename = mFilename.getText().toString(); + if (mInputFilename == null || !mInputFilename.equals(currentFilename)) { + mInputFilename = mFilename.getText().toString(); + } + + mOutputFilename = guessOutputFilename(mInputFilename); + + if (mInputFilename.equals("")) { + AppMsg.makeText(getActivity(), R.string.no_file_selected, AppMsg.STYLE_ALERT).show(); + return; + } + + if (!mInputFilename.startsWith("content")) { + 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; + } + } + + 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) { + AppMsg.makeText(getActivity(), R.string.select_encryption_key, AppMsg.STYLE_ALERT).show(); + return; + } + + 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) { + showOutputFileDialog(); + } + } + }); + + return; + } + } + + showOutputFileDialog(); + } + + private void encryptStart() { + // 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_URI); + + 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()); + } + + Log.d(Constants.TAG, "mInputFilename=" + mInputFilename + ", mOutputFilename=" + + mOutputFilename); + + data.putString(KeychainIntentService.ENCRYPT_INPUT_FILE, mInputFilename); + data.putString(KeychainIntentService.ENCRYPT_OUTPUT_FILE, mOutputFilename); + + boolean useAsciiArmor = mAsciiArmor.isChecked(); + data.putBoolean(KeychainIntentService.ENCRYPT_USE_ASCII_ARMOR, useAsciiArmor); + + int compressionId = ((Choice) mFileCompression.getSelectedItem()).getId(); + 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) { + AppMsg.makeText(getActivity(), R.string.encryption_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"); + } + + if (mShareAfter.isChecked()) { + // Share encrypted file + Intent sendFileIntent = new Intent(Intent.ACTION_SEND); + sendFileIntent.setType("*/*"); + sendFileIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(mOutputFilename)); + startActivity(Intent.createChooser(sendFileIntent, + getString(R.string.title_send_file))); + } + } + } + }; + + // 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; + } + } + } +} |