496 lines
19 KiB
Java
496 lines
19 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.content.Intent;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.Loader;
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import android.util.Log;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import android.widget.ViewAnimator;
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import org.openintents.openpgp.OpenPgpDecryptionResult;
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import org.openintents.openpgp.OpenPgpSignatureResult;
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import org.openintents.openpgp.util.OpenPgpUtils;
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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.keyimport.ParcelableKeyRing;
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import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
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import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
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import org.sufficientlysecure.keychain.pgp.KeyRing;
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import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
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import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils.State;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.ui.util.Notify.Style;
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import org.sufficientlysecure.keychain.keyimport.ParcelableHkpKeyserver;
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import org.sufficientlysecure.keychain.util.Preferences;
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import java.util.ArrayList;
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public abstract class DecryptFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
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public static final int LOADER_ID_UNIFIED = 0;
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public static final String ARG_DECRYPT_VERIFY_RESULT = "decrypt_verify_result";
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protected LinearLayout mResultLayout;
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protected ImageView mEncryptionIcon;
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protected TextView mEncryptionText;
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protected ImageView mSignatureIcon;
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protected TextView mSignatureText;
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protected View mSignatureLayout;
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protected TextView mSignatureName;
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protected TextView mSignatureEmail;
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protected TextView mSignatureAction;
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private OpenPgpSignatureResult mSignatureResult;
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private DecryptVerifyResult mDecryptVerifyResult;
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private ViewAnimator mOverlayAnimator;
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private CryptoOperationHelper<ImportKeyringParcel, ImportKeyResult> mImportOpHelper;
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@Override
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public void onViewCreated(View view, Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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// NOTE: These views are inside the activity!
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mResultLayout = (LinearLayout) getActivity().findViewById(R.id.result_main_layout);
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mResultLayout.setVisibility(View.GONE);
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mEncryptionIcon = (ImageView) getActivity().findViewById(R.id.result_encryption_icon);
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mEncryptionText = (TextView) getActivity().findViewById(R.id.result_encryption_text);
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mSignatureIcon = (ImageView) getActivity().findViewById(R.id.result_signature_icon);
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mSignatureText = (TextView) getActivity().findViewById(R.id.result_signature_text);
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mSignatureLayout = getActivity().findViewById(R.id.result_signature_layout);
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mSignatureName = (TextView) getActivity().findViewById(R.id.result_signature_name);
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mSignatureEmail = (TextView) getActivity().findViewById(R.id.result_signature_email);
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mSignatureAction = (TextView) getActivity().findViewById(R.id.result_signature_action);
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// Overlay
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mOverlayAnimator = (ViewAnimator) view;
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Button vErrorOverlayButton = (Button) view.findViewById(R.id.decrypt_error_overlay_button);
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vErrorOverlayButton.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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mOverlayAnimator.setDisplayedChild(0);
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}
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});
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}
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private void showErrorOverlay(boolean overlay) {
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int child = overlay ? 1 : 0;
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if (mOverlayAnimator.getDisplayedChild() != child) {
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mOverlayAnimator.setDisplayedChild(child);
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}
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putParcelable(ARG_DECRYPT_VERIFY_RESULT, mDecryptVerifyResult);
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}
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@Override
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public void onViewStateRestored(Bundle savedInstanceState) {
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super.onViewStateRestored(savedInstanceState);
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if (savedInstanceState == null) {
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return;
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}
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DecryptVerifyResult result = savedInstanceState.getParcelable(ARG_DECRYPT_VERIFY_RESULT);
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if (result != null) {
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loadVerifyResult(result);
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}
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}
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private void lookupUnknownKey(long unknownKeyId) {
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final ArrayList<ParcelableKeyRing> keyList;
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final ParcelableHkpKeyserver keyserver;
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// search config
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keyserver = Preferences.getPreferences(getActivity()).getPreferredKeyserver();
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{
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ParcelableKeyRing keyEntry = new ParcelableKeyRing(null,
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KeyFormattingUtils.convertKeyIdToHex(unknownKeyId), null, null);
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ArrayList<ParcelableKeyRing> selectedEntries = new ArrayList<>();
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selectedEntries.add(keyEntry);
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keyList = selectedEntries;
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}
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CryptoOperationHelper.Callback<ImportKeyringParcel, ImportKeyResult> callback
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= new CryptoOperationHelper.Callback<ImportKeyringParcel, ImportKeyResult>() {
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@Override
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public ImportKeyringParcel createOperationInput() {
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return new ImportKeyringParcel(keyList, keyserver);
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}
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@Override
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public void onCryptoOperationSuccess(ImportKeyResult result) {
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result.createNotify(getActivity()).show();
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getLoaderManager().restartLoader(LOADER_ID_UNIFIED, null, DecryptFragment.this);
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}
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@Override
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public void onCryptoOperationCancelled() {
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// do nothing
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}
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@Override
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public void onCryptoOperationError(ImportKeyResult result) {
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result.createNotify(getActivity()).show();
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}
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@Override
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public boolean onCryptoSetProgress(String msg, int progress, int max) {
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return false;
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}
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};
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mImportOpHelper = new CryptoOperationHelper<>(1, this, callback, R.string.progress_importing);
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mImportOpHelper.cryptoOperation();
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}
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private void showKey(long keyId) {
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try {
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Intent viewKeyIntent = new Intent(getActivity(), ViewKeyActivity.class);
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long masterKeyId = new ProviderHelper(getActivity()).getCachedPublicKeyRing(
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KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(keyId)
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).getMasterKeyId();
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viewKeyIntent.setData(KeyRings.buildGenericKeyRingUri(masterKeyId));
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startActivity(viewKeyIntent);
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} catch (PgpKeyNotFoundException e) {
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Notify.create(getActivity(), R.string.error_key_not_found, Style.ERROR);
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}
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}
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protected void loadVerifyResult(DecryptVerifyResult decryptVerifyResult) {
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mDecryptVerifyResult = decryptVerifyResult;
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mSignatureResult = decryptVerifyResult.getSignatureResult();
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OpenPgpDecryptionResult decryptionResult = decryptVerifyResult.getDecryptionResult();
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mResultLayout.setVisibility(View.VISIBLE);
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switch (decryptionResult.getResult()) {
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case OpenPgpDecryptionResult.RESULT_ENCRYPTED: {
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mEncryptionText.setText(R.string.decrypt_result_encrypted);
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KeyFormattingUtils.setStatusImage(getActivity(), mEncryptionIcon, mEncryptionText, State.ENCRYPTED);
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break;
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}
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case OpenPgpDecryptionResult.RESULT_INSECURE: {
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mEncryptionText.setText(R.string.decrypt_result_insecure);
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KeyFormattingUtils.setStatusImage(getActivity(), mEncryptionIcon, mEncryptionText, State.INSECURE);
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break;
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}
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default:
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case OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED: {
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mEncryptionText.setText(R.string.decrypt_result_not_encrypted);
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KeyFormattingUtils.setStatusImage(getActivity(), mEncryptionIcon, mEncryptionText, State.NOT_ENCRYPTED);
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break;
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}
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}
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if (mSignatureResult.getResult() == OpenPgpSignatureResult.RESULT_NO_SIGNATURE) {
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// no signature
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setSignatureLayoutVisibility(View.GONE);
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mSignatureText.setText(R.string.decrypt_result_no_signature);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.NOT_SIGNED);
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getLoaderManager().destroyLoader(LOADER_ID_UNIFIED);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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} else {
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// signature present
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// after loader is restarted signature results are checked
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getLoaderManager().restartLoader(LOADER_ID_UNIFIED, null, this);
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}
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}
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private void setSignatureLayoutVisibility(int visibility) {
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mSignatureLayout.setVisibility(visibility);
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}
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private void setShowAction(final long signatureKeyId) {
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mSignatureAction.setText(R.string.decrypt_result_action_show);
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mSignatureAction.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_vpn_key_grey_24dp, 0);
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mSignatureLayout.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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showKey(signatureKeyId);
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}
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});
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}
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// These are the rows that we will retrieve.
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static final String[] UNIFIED_PROJECTION = new String[]{
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KeychainContract.KeyRings._ID,
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KeychainContract.KeyRings.MASTER_KEY_ID,
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KeychainContract.KeyRings.USER_ID,
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KeychainContract.KeyRings.VERIFIED,
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KeychainContract.KeyRings.HAS_ANY_SECRET,
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};
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@SuppressWarnings("unused")
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static final int INDEX_MASTER_KEY_ID = 1;
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static final int INDEX_USER_ID = 2;
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static final int INDEX_VERIFIED = 3;
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static final int INDEX_HAS_ANY_SECRET = 4;
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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if (id != LOADER_ID_UNIFIED) {
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return null;
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}
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Uri baseUri = KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(
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mSignatureResult.getKeyId());
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return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null);
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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if (loader.getId() != LOADER_ID_UNIFIED) {
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return;
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}
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// If the key is unknown, show it as such
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if (data.getCount() == 0 || !data.moveToFirst()) {
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showUnknownKeyStatus();
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return;
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}
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long signatureKeyId = mSignatureResult.getKeyId();
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String userId = data.getString(INDEX_USER_ID);
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OpenPgpUtils.UserId userIdSplit = KeyRing.splitUserId(userId);
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if (userIdSplit.name != null) {
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mSignatureName.setText(userIdSplit.name);
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} else {
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mSignatureName.setText(R.string.user_id_no_name);
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}
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if (userIdSplit.email != null) {
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mSignatureEmail.setText(userIdSplit.email);
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} else {
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mSignatureEmail.setText(KeyFormattingUtils.beautifyKeyIdWithPrefix(
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mSignatureResult.getKeyId()));
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}
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// NOTE: Don't use revoked and expired fields from database, they don't show
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// revoked/expired subkeys
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boolean isRevoked = mSignatureResult.getResult() == OpenPgpSignatureResult.RESULT_INVALID_KEY_REVOKED;
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boolean isExpired = mSignatureResult.getResult() == OpenPgpSignatureResult.RESULT_INVALID_KEY_EXPIRED;
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boolean isInsecure = mSignatureResult.getResult() == OpenPgpSignatureResult.RESULT_INVALID_KEY_INSECURE;
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boolean isVerified = data.getInt(INDEX_VERIFIED) > 0;
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boolean isYours = data.getInt(INDEX_HAS_ANY_SECRET) != 0;
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if (isRevoked) {
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mSignatureText.setText(R.string.decrypt_result_signature_revoked_key);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.REVOKED);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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onVerifyLoaded(true);
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} else if (isExpired) {
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mSignatureText.setText(R.string.decrypt_result_signature_expired_key);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.EXPIRED);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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} else if (isInsecure) {
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mSignatureText.setText(R.string.decrypt_result_insecure_cryptography);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.INSECURE);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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} else if (isYours) {
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mSignatureText.setText(R.string.decrypt_result_signature_secret);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.VERIFIED);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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} else if (isVerified) {
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mSignatureText.setText(R.string.decrypt_result_signature_certified);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.VERIFIED);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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} else {
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mSignatureText.setText(R.string.decrypt_result_signature_uncertified);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.UNVERIFIED);
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setSignatureLayoutVisibility(View.VISIBLE);
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setShowAction(signatureKeyId);
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showErrorOverlay(false);
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onVerifyLoaded(true);
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}
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) {
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if (loader.getId() != LOADER_ID_UNIFIED) {
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return;
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}
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setSignatureLayoutVisibility(View.GONE);
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}
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private void showUnknownKeyStatus() {
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final long signatureKeyId = mSignatureResult.getKeyId();
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int result = mSignatureResult.getResult();
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if (result != OpenPgpSignatureResult.RESULT_KEY_MISSING
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&& result != OpenPgpSignatureResult.RESULT_INVALID_SIGNATURE) {
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Log.e(Constants.TAG, "got missing status for non-missing key, shouldn't happen!");
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}
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String userId = mSignatureResult.getPrimaryUserId();
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OpenPgpUtils.UserId userIdSplit = KeyRing.splitUserId(userId);
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if (userIdSplit.name != null) {
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mSignatureName.setText(userIdSplit.name);
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} else {
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mSignatureName.setText(R.string.user_id_no_name);
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}
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if (userIdSplit.email != null) {
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mSignatureEmail.setText(userIdSplit.email);
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} else {
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mSignatureEmail.setText(KeyFormattingUtils.beautifyKeyIdWithPrefix(
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mSignatureResult.getKeyId()));
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}
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switch (mSignatureResult.getResult()) {
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case OpenPgpSignatureResult.RESULT_KEY_MISSING: {
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mSignatureText.setText(R.string.decrypt_result_signature_missing_key);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.UNKNOWN_KEY);
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setSignatureLayoutVisibility(View.VISIBLE);
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mSignatureAction.setText(R.string.decrypt_result_action_Lookup);
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mSignatureAction
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.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_file_download_grey_24dp, 0);
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mSignatureLayout.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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lookupUnknownKey(signatureKeyId);
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}
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});
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showErrorOverlay(false);
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onVerifyLoaded(true);
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break;
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}
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case OpenPgpSignatureResult.RESULT_INVALID_SIGNATURE: {
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mSignatureText.setText(R.string.decrypt_result_invalid_signature);
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KeyFormattingUtils.setStatusImage(getActivity(), mSignatureIcon, mSignatureText, State.INVALID);
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setSignatureLayoutVisibility(View.GONE);
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showErrorOverlay(true);
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onVerifyLoaded(false);
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break;
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}
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}
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}
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protected abstract void onVerifyLoaded(boolean hideErrorOverlay);
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public void startDisplayLogActivity() {
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Activity activity = getActivity();
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if (activity == null) {
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return;
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}
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Intent intent = new Intent(activity, LogDisplayActivity.class);
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intent.putExtra(LogDisplayFragment.EXTRA_RESULT, mDecryptVerifyResult);
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activity.startActivity(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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if (mImportOpHelper != null) {
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mImportOpHelper.handleActivityResult(requestCode, resultCode, data);
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}
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super.onActivityResult(requestCode, resultCode, data);
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}
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}
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