| /* |
| * Copyright 2014, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.managedprovisioning.preprovisioning; |
| |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_WEB_ACTIVITY_TIME_MS; |
| |
| import static java.net.HttpURLConnection.HTTP_FORBIDDEN; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import androidx.annotation.Nullable; |
| import android.webkit.URLUtil; |
| import android.webkit.WebResourceRequest; |
| import android.webkit.WebResourceResponse; |
| import android.webkit.WebSettings; |
| import android.webkit.WebView; |
| import android.webkit.WebViewClient; |
| import android.widget.Toast; |
| |
| import com.android.managedprovisioning.R; |
| import com.android.managedprovisioning.common.ProvisionLogger; |
| import com.android.managedprovisioning.common.SettingsFacade; |
| import com.android.managedprovisioning.common.SetupLayoutActivity; |
| import com.android.managedprovisioning.preprovisioning.terms.TermsActivity; |
| |
| /** |
| * This activity shows a web view, which loads the url indicated in the starting intent. By default |
| * the user can click on links and load other urls. However, by passing the allowed url base, the |
| * web view can be limited to urls that start with this base. |
| * |
| * <p>This activity is considered for using by |
| * {@link TermsActivity} to display the support web pages |
| * about provisioning concepts. |
| */ |
| public class WebActivity extends SetupLayoutActivity { |
| private static final String EXTRA_URL = "extra_url"; |
| private static final String EXTRA_STATUS_BAR_COLOR = "extra_status_bar_color"; |
| |
| private WebView mWebView; |
| private SettingsFacade mSettingsFacade = new SettingsFacade(); |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| String extraUrl = getIntent().getStringExtra(EXTRA_URL); |
| if (extraUrl == null) { |
| Toast.makeText(this, R.string.url_error, Toast.LENGTH_SHORT).show(); |
| ProvisionLogger.loge("No url provided to WebActivity."); |
| finish(); |
| } |
| |
| Bundle extras = getIntent().getExtras(); |
| if (extras.containsKey(EXTRA_STATUS_BAR_COLOR)) { |
| setStatusBarColor(extras.getInt(EXTRA_STATUS_BAR_COLOR)); |
| } |
| |
| mWebView = new WebView(this); |
| // We need a custom WebViewClient. Without this an external browser will load the URL. |
| mWebView.setWebViewClient(new WebViewClient() { |
| @Override |
| public WebResourceResponse shouldInterceptRequest(WebView view, |
| WebResourceRequest request) { |
| String url = request.getUrl().toString(); |
| if (!URLUtil.isHttpsUrl(url)) { |
| ProvisionLogger.loge("Secure connection required, but insecure URL requested " |
| + "explicitly, or as a part of the page."); |
| return createNewSecurityErrorResponse(); |
| } |
| return super.shouldInterceptRequest(view, request); |
| } |
| }); |
| mWebView.loadUrl(extraUrl); |
| // Enable zoom gesture in web view. |
| WebSettings webSettings = mWebView.getSettings(); |
| webSettings.setBuiltInZoomControls(true); |
| webSettings.setDisplayZoomControls(false); |
| webSettings.setJavaScriptEnabled(true); |
| if (!mSettingsFacade.isUserSetupCompleted(this)) { |
| // User should not be able to escape provisioning if user setup isn't complete. |
| mWebView.setOnLongClickListener(v -> true); |
| } |
| setContentView(mWebView); |
| } |
| |
| private WebResourceResponse createNewSecurityErrorResponse() { |
| WebResourceResponse response = new WebResourceResponse("text/plain", "UTF-8", null); |
| response.setStatusCodeAndReasonPhrase(HTTP_FORBIDDEN, "Secure connection required"); |
| return response; |
| } |
| |
| protected int getMetricsCategory() { |
| return PROVISIONING_WEB_ACTIVITY_TIME_MS; |
| } |
| |
| @Override |
| public void onBackPressed() { |
| if (mWebView.canGoBack()) { |
| mWebView.goBack(); |
| } else { |
| super.onBackPressed(); |
| } |
| } |
| |
| /** |
| * Creates an intent to launch the {@link WebActivity}. |
| * @param url the url to be shown upon launching this activity |
| */ |
| @Nullable |
| public static Intent createIntent(Context context, String url, int statusBarColor) { |
| if (URLUtil.isNetworkUrl(url)) { |
| return new Intent(context, WebActivity.class) |
| .putExtra(EXTRA_URL, url) |
| .putExtra(EXTRA_STATUS_BAR_COLOR, statusBarColor); |
| } |
| return null; |
| } |
| } |