diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesInputFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesInputFragment.java | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesInputFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesInputFragment.java new file mode 100644 index 000000000..3f15376cb --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFilesInputFragment.java @@ -0,0 +1,323 @@ +/* + * 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.annotation.SuppressLint; +import android.app.Activity; +import android.app.ProgressDialog; +import android.content.Intent; +import android.net.Uri; +import android.os.Build; +import android.os.Bundle; +import android.os.Message; +import android.os.Messenger; +import android.text.TextUtils; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.CheckBox; +import android.widget.TextView; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult; +import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel; +import org.sufficientlysecure.keychain.service.KeychainIntentService; +import org.sufficientlysecure.keychain.service.ServiceProgressHandler; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; +import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment; +import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment; +import org.sufficientlysecure.keychain.ui.util.Notify; +import org.sufficientlysecure.keychain.util.FileHelper; +import org.sufficientlysecure.keychain.util.Log; + +import java.io.File; + +public class DecryptFilesInputFragment extends DecryptFragment { + public static final String ARG_URI = "uri"; + public static final String ARG_OPEN_DIRECTLY = "open_directly"; + + private static final int REQUEST_CODE_INPUT = 0x00007003; + private static final int REQUEST_CODE_OUTPUT = 0x00007007; + + // view + private TextView mFilename; + private CheckBox mDeleteAfter; + private View mDecryptButton; + + // model + private Uri mInputUri = null; + private Uri mOutputUri = null; + + private String mCurrentCryptoOperation; + + /** + * Creates new instance of this fragment + */ + public static DecryptFilesInputFragment newInstance(Uri uri, boolean openDirectly) { + DecryptFilesInputFragment frag = new DecryptFilesInputFragment(); + + Bundle args = new Bundle(); + args.putParcelable(ARG_URI, uri); + args.putBoolean(ARG_OPEN_DIRECTLY, openDirectly); + + frag.setArguments(args); + + return frag; + } + + /** + * Inflate the layout for this fragment + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.decrypt_files_fragment, container, false); + + mFilename = (TextView) view.findViewById(R.id.decrypt_files_filename); + mDeleteAfter = (CheckBox) view.findViewById(R.id.decrypt_files_delete_after_decryption); + mDecryptButton = view.findViewById(R.id.decrypt_files_action_decrypt); + view.findViewById(R.id.decrypt_files_browse).setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { + FileHelper.openDocument(DecryptFilesInputFragment.this, "*/*", REQUEST_CODE_INPUT); + } else { + FileHelper.openFile(DecryptFilesInputFragment.this, mInputUri, "*/*", + REQUEST_CODE_INPUT); + } + } + }); + mDecryptButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + decryptAction(); + } + }); + + return view; + } + + @Override + public void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + + outState.putParcelable(ARG_URI, mInputUri); + } + + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + Bundle state = savedInstanceState != null ? savedInstanceState : getArguments(); + setInputUri(state.<Uri>getParcelable(ARG_URI)); + + // should only come from args + if (state.getBoolean(ARG_OPEN_DIRECTLY, false)) { + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { + FileHelper.openDocument(DecryptFilesInputFragment.this, "*/*", REQUEST_CODE_INPUT); + } else { + FileHelper.openFile(DecryptFilesInputFragment.this, mInputUri, "*/*", REQUEST_CODE_INPUT); + } + } + } + + private void setInputUri(Uri inputUri) { + if (inputUri == null) { + mInputUri = null; + mFilename.setText(""); + return; + } + + mInputUri = inputUri; + mFilename.setText(FileHelper.getFilename(getActivity(), mInputUri)); + } + + private void decryptAction() { + if (mInputUri == null) { + Notify.create(getActivity(), R.string.no_file_selected, Notify.Style.ERROR).show(); + return; + } + + startDecryptFilenames(); + } + + private String removeEncryptedAppend(String name) { + if (name.endsWith(Constants.FILE_EXTENSION_ASC) + || name.endsWith(Constants.FILE_EXTENSION_PGP_MAIN) + || name.endsWith(Constants.FILE_EXTENSION_PGP_ALTERNATE)) { + return name.substring(0, name.length() - 4); + } + return name; + } + + private void askForOutputFilename(String originalFilename) { + if (TextUtils.isEmpty(originalFilename)) { + originalFilename = removeEncryptedAppend(FileHelper.getFilename(getActivity(), mInputUri)); + } + + if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { + File file = new File(mInputUri.getPath()); + File parentDir = file.exists() ? file.getParentFile() : Constants.Path.APP_DIR; + File targetFile = new File(parentDir, originalFilename); + FileHelper.saveFile(this, getString(R.string.title_decrypt_to_file), + getString(R.string.specify_file_to_decrypt_to), targetFile, REQUEST_CODE_OUTPUT); + } else { + FileHelper.saveDocument(this, "*/*", originalFilename, REQUEST_CODE_OUTPUT); + } + } + + private void displayMetadata(DecryptVerifyResult result) { + + } + + private void startDecrypt() { + mCurrentCryptoOperation = KeychainIntentService.ACTION_DECRYPT_VERIFY; + cryptoOperation(new CryptoInputParcel()); + } + + private void startDecryptFilenames() { + mCurrentCryptoOperation = KeychainIntentService.ACTION_DECRYPT_METADATA; + cryptoOperation(new CryptoInputParcel()); + } + + @Override + @SuppressLint("HandlerLeak") + protected void cryptoOperation(CryptoInputParcel cryptoInput) { + // 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(); + // use current operation, either decrypt metadata or decrypt payload + intent.setAction(mCurrentCryptoOperation); + + // data + + Log.d(Constants.TAG, "mInputUri=" + mInputUri + ", mOutputUri=" + mOutputUri); + + PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(mInputUri, mOutputUri) + .setAllowSymmetricDecryption(true); + + data.putParcelable(KeychainIntentService.DECRYPT_VERIFY_PARCEL, input); + data.putParcelable(KeychainIntentService.EXTRA_CRYPTO_INPUT, cryptoInput); + + intent.putExtra(KeychainIntentService.EXTRA_DATA, data); + + // Message is received after decrypting is done in KeychainIntentService + ServiceProgressHandler saveHandler = new ServiceProgressHandler( + getActivity(), + getString(R.string.progress_decrypting), + ProgressDialog.STYLE_HORIZONTAL, + ProgressDialogFragment.ServiceType.KEYCHAIN_INTENT) { + @Override + public void handleMessage(Message message) { + // handle messages by standard KeychainIntentServiceHandler first + super.handleMessage(message); + + // handle pending messages + if (handlePendingMessage(message)) { + return; + } + + if (message.arg1 == MessageStatus.OKAY.ordinal()) { + // get returned data bundle + Bundle returnData = message.getData(); + + DecryptVerifyResult result = + returnData.getParcelable(DecryptVerifyResult.EXTRA_RESULT); + + if (result.success()) { + switch (mCurrentCryptoOperation) { + case KeychainIntentService.ACTION_DECRYPT_METADATA: { + displayMetadata(result); + // askForOutputFilename(pgpResult.getDecryptMetadata().getFilename()); + break; + } + case KeychainIntentService.ACTION_DECRYPT_VERIFY: { + // display signature result in activity + loadVerifyResult(result); + + if (mDeleteAfter.isChecked()) { + // Create and show dialog to delete original file + DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment.newInstance(mInputUri); + deleteFileDialog.show(getActivity().getSupportFragmentManager(), "deleteDialog"); + setInputUri(null); + } + + /* + // A future open after decryption feature + if () { + Intent viewFile = new Intent(Intent.ACTION_VIEW); + viewFile.setInputData(mOutputUri); + startActivity(viewFile); + } + */ + break; + } + default: { + Log.e(Constants.TAG, "Bug: not supported operation!"); + break; + } + } + } + result.createNotify(getActivity()).show(DecryptFilesInputFragment.this); + } + + } + }; + + // 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 REQUEST_CODE_INPUT: { + if (resultCode == Activity.RESULT_OK && data != null) { + setInputUri(data.getData()); + } + return; + } + + case REQUEST_CODE_OUTPUT: { + // This happens after output file was selected, so start our operation + if (resultCode == Activity.RESULT_OK && data != null) { + mOutputUri = data.getData(); + startDecrypt(); + } + return; + } + + default: { + super.onActivityResult(requestCode, resultCode, data); + } + } + } + + @Override + protected void onVerifyLoaded(boolean hideErrorOverlay) { + + } +} |