189 lines
6.8 KiB
Java
189 lines
6.8 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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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.remote.ui;
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import android.content.Context;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.graphics.drawable.Drawable;
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import androidx.annotation.Nullable;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.model.SubKey.UnifiedKeyInfo;
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import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
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import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
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import org.sufficientlysecure.keychain.daos.ApiAppDao;
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import org.sufficientlysecure.keychain.daos.KeyRepository;
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import org.sufficientlysecure.keychain.daos.KeyRepository.NotFoundException;
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import org.sufficientlysecure.keychain.remote.ApiPermissionHelper;
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import org.sufficientlysecure.keychain.remote.ApiPermissionHelper.WrongPackageCertificateException;
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import org.sufficientlysecure.keychain.ui.util.KeyInfoFormatter;
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import timber.log.Timber;
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class RequestKeyPermissionPresenter {
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private final Context context;
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private final PackageManager packageManager;
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private final ApiAppDao apiAppDao;
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private final ApiPermissionHelper apiPermissionHelper;
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private RequestKeyPermissionMvpView view;
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private String packageName;
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private long masterKeyId;
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private KeyRepository keyRepository;
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static RequestKeyPermissionPresenter createRequestKeyPermissionPresenter(Context context) {
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PackageManager packageManager = context.getPackageManager();
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ApiAppDao apiAppDao = ApiAppDao.getInstance(context);
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ApiPermissionHelper apiPermissionHelper = new ApiPermissionHelper(context, apiAppDao);
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KeyRepository keyRepository =
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KeyRepository.create(context);
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return new RequestKeyPermissionPresenter(context, apiAppDao, apiPermissionHelper, packageManager,
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keyRepository);
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}
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private RequestKeyPermissionPresenter(Context context, ApiAppDao apiAppDao,
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ApiPermissionHelper apiPermissionHelper, PackageManager packageManager, KeyRepository keyRepository) {
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this.context = context;
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this.apiAppDao = apiAppDao;
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this.apiPermissionHelper = apiPermissionHelper;
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this.packageManager = packageManager;
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this.keyRepository = keyRepository;
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}
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void setView(RequestKeyPermissionMvpView view) {
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this.view = view;
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}
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void setupFromIntentData(String packageName, long[] masterKeyIds) {
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checkPackageAllowed(packageName);
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try {
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setPackageInfo(packageName);
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} catch (NameNotFoundException e) {
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Timber.e("Unable to find info of calling app!");
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view.finishAsCancelled();
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return;
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}
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try {
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setRequestedMasterKeyId(masterKeyIds);
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} catch (PgpKeyNotFoundException e) {
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view.finishAsCancelled();
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}
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}
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private void setRequestedMasterKeyId(long[] subKeyIds) throws PgpKeyNotFoundException {
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UnifiedKeyInfo secretKeyRingOrPublicFallback = findSecretKeyRingOrPublicFallback(subKeyIds);
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if (secretKeyRingOrPublicFallback == null) {
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throw new PgpKeyNotFoundException("No key found among requested!");
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}
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masterKeyId = secretKeyRingOrPublicFallback.master_key_id();
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KeyInfoFormatter keyInfoFormatter = new KeyInfoFormatter(context);
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keyInfoFormatter.setKeyInfo(secretKeyRingOrPublicFallback);
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view.displayKeyInfo(keyInfoFormatter);
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if (secretKeyRingOrPublicFallback.has_any_secret()) {
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view.switchToLayoutRequestKeyChoice();
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} else {
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view.switchToLayoutNoSecret();
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}
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}
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@Nullable
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private UnifiedKeyInfo findSecretKeyRingOrPublicFallback(long[] subKeyIds) {
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UnifiedKeyInfo publicFallbackRing = null;
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for (long candidateSubKeyId : subKeyIds) {
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try {
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Long masterKeyId = keyRepository.getMasterKeyIdBySubkeyId(candidateSubKeyId);
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if (masterKeyId == null) {
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continue;
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}
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UnifiedKeyInfo unifiedKeyInfo = keyRepository.getUnifiedKeyInfo(masterKeyId);
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SecretKeyType secretKeyType = keyRepository.getSecretKeyType(candidateSubKeyId);
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if (secretKeyType.isUsable()) {
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return unifiedKeyInfo;
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}
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if (publicFallbackRing == null) {
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publicFallbackRing = unifiedKeyInfo;
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}
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} catch (NotFoundException e) {
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// no matter
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}
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}
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return publicFallbackRing;
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}
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private void setPackageInfo(String packageName) throws NameNotFoundException {
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this.packageName = packageName;
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ApplicationInfo applicationInfo = packageManager.getApplicationInfo(packageName, 0);
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Drawable appIcon = packageManager.getApplicationIcon(applicationInfo);
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CharSequence appName = packageManager.getApplicationLabel(applicationInfo);
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view.setTitleClientIcon(appIcon);
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view.setTitleText(context.getString(R.string.request_permission_msg, appName));
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}
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private void checkPackageAllowed(String packageName) {
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boolean packageAllowed;
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try {
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packageAllowed = apiPermissionHelper.isPackageAllowed(packageName);
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} catch (WrongPackageCertificateException e) {
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packageAllowed = false;
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}
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if (!packageAllowed) {
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throw new IllegalStateException("Pending intent launched by unknown app!");
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}
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}
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void onClickAllow() {
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apiAppDao.addAllowedKeyIdForApp(packageName, masterKeyId);
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view.finish();
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}
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void onClickCancel() {
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view.finishAsCancelled();
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}
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void onCancel() {
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view.finishAsCancelled();
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}
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interface RequestKeyPermissionMvpView {
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void switchToLayoutRequestKeyChoice();
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void switchToLayoutNoSecret();
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void setTitleText(String text);
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void setTitleClientIcon(Drawable drawable);
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void displayKeyInfo(KeyInfoFormatter keyInfoFormatter);
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void finish();
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void finishAsCancelled();
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}
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}
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