239 lines
9.2 KiB
Java
239 lines
9.2 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.app.Activity;
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import android.app.ProgressDialog;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Message;
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import android.os.Messenger;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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import org.openintents.openpgp.util.OpenPgpApi;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
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import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
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import org.sufficientlysecure.keychain.service.results.DecryptVerifyResult;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.ShareHelper;
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public class DecryptTextFragment extends DecryptFragment {
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public static final String ARG_CIPHERTEXT = "ciphertext";
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// view
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private TextView mText;
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private View mShareButton;
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private View mCopyButton;
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// model
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private String mCiphertext;
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/**
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* Creates new instance of this fragment
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*/
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public static DecryptTextFragment newInstance(String ciphertext) {
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DecryptTextFragment frag = new DecryptTextFragment();
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Bundle args = new Bundle();
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args.putString(ARG_CIPHERTEXT, ciphertext);
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frag.setArguments(args);
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return frag;
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}
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/**
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* Inflate the layout for this fragment
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*/
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.decrypt_text_fragment, container, false);
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mText = (TextView) view.findViewById(R.id.decrypt_text_plaintext);
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mShareButton = view.findViewById(R.id.action_decrypt_share_plaintext);
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mCopyButton = view.findViewById(R.id.action_decrypt_copy_plaintext);
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mShareButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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startActivity(sendWithChooserExcludingEncrypt(mText.getText().toString()));
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}
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});
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mCopyButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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copyToClipboard(mText.getText().toString());
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}
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});
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return view;
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}
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/**
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* Create Intent Chooser but exclude decrypt activites
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*/
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private Intent sendWithChooserExcludingEncrypt(String text) {
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Intent prototype = createSendIntent(text);
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String title = getString(R.string.title_share_file);
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// we don't want to decrypt the decypted, no inception ;)
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String[] blacklist = new String[]{
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Constants.PACKAGE_NAME + ".ui.DecryptTextActivity",
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"org.thialfihar.android.apg.ui.DecryptActivity"
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};
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return new ShareHelper(getActivity()).createChooserExcluding(prototype, title, blacklist);
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}
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private Intent createSendIntent(String text) {
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Intent sendIntent = new Intent(Intent.ACTION_SEND);
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sendIntent.putExtra(Intent.EXTRA_TEXT, text);
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sendIntent.setType("text/plain");
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return sendIntent;
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}
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private void copyToClipboard(String text) {
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ClipboardReflection.copyToClipboard(getActivity(), text);
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Notify.showNotify(getActivity(), R.string.text_copied_to_clipboard, Notify.Style.INFO);
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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String ciphertext = getArguments().getString(ARG_CIPHERTEXT);
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if (ciphertext != null) {
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mCiphertext = ciphertext;
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decryptStart();
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}
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}
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@Override
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protected void decryptStart() {
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Log.d(Constants.TAG, "decryptStart");
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// Send all information needed to service to decrypt in other thread
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Intent intent = new Intent(getActivity(), KeychainIntentService.class);
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// fill values for this action
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Bundle data = new Bundle();
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intent.setAction(KeychainIntentService.ACTION_DECRYPT_VERIFY);
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// data
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_BYTES);
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data.putByteArray(KeychainIntentService.DECRYPT_CIPHERTEXT_BYTES, mCiphertext.getBytes());
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data.putString(KeychainIntentService.DECRYPT_PASSPHRASE, mPassphrase);
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data.putByteArray(KeychainIntentService.DECRYPT_NFC_DECRYPTED_SESSION_KEY, mNfcDecryptedSessionKey);
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intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
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// Message is received after encrypting is done in KeychainIntentService
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KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(),
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getString(R.string.progress_decrypting), ProgressDialog.STYLE_HORIZONTAL) {
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public void handleMessage(Message message) {
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// handle messages by standard KeychainIntentServiceHandler first
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super.handleMessage(message);
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if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
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// get returned data bundle
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Bundle returnData = message.getData();
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DecryptVerifyResult pgpResult =
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returnData.getParcelable(DecryptVerifyResult.EXTRA_RESULT);
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if (pgpResult.isPending()) {
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if ((pgpResult.getResult() & DecryptVerifyResult.RESULT_PENDING_ASYM_PASSPHRASE) ==
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DecryptVerifyResult.RESULT_PENDING_ASYM_PASSPHRASE) {
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startPassphraseDialog(pgpResult.getKeyIdPassphraseNeeded());
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} else if ((pgpResult.getResult() & DecryptVerifyResult.RESULT_PENDING_SYM_PASSPHRASE) ==
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DecryptVerifyResult.RESULT_PENDING_SYM_PASSPHRASE) {
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startPassphraseDialog(Constants.key.symmetric);
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} else if ((pgpResult.getResult() & DecryptVerifyResult.RESULT_PENDING_NFC) ==
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DecryptVerifyResult.RESULT_PENDING_NFC) {
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startNfcDecrypt(pgpResult.getNfcPassphrase(), pgpResult.getNfcEncryptedSessionKey());
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} else {
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throw new RuntimeException("Unhandled pending result!");
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}
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} else if (pgpResult.success()) {
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byte[] decryptedMessage = returnData
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.getByteArray(KeychainIntentService.RESULT_DECRYPTED_BYTES);
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mText.setText(new String(decryptedMessage));
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mText.setHorizontallyScrolling(false);
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pgpResult.createNotify(getActivity()).show();
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// display signature result in activity
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onResult(pgpResult);
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} else {
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pgpResult.createNotify(getActivity()).show();
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}
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}
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}
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};
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// Create a new Messenger for the communication back
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Messenger messenger = new Messenger(saveHandler);
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intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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saveHandler.showProgressDialog(getActivity());
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// start service with intent
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getActivity().startService(intent);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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switch (requestCode) {
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case REQUEST_CODE_PASSPHRASE: {
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if (resultCode == Activity.RESULT_OK && data != null) {
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mPassphrase = data.getStringExtra(PassphraseDialogActivity.MESSAGE_DATA_PASSPHRASE);
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decryptStart();
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} else {
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getActivity().finish();
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}
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return;
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}
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case REQUEST_CODE_NFC_DECRYPT: {
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if (resultCode == Activity.RESULT_OK && data != null) {
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mNfcDecryptedSessionKey = data.getByteArrayExtra(OpenPgpApi.EXTRA_NFC_DECRYPTED_SESSION_KEY);
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decryptStart();
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} else {
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getActivity().finish();
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}
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return;
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}
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default: {
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super.onActivityResult(requestCode, resultCode, data);
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}
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}
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}
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}
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