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/*
* Copyright (C) 2007 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.settings;
import android.os.Bundle;
import android.os.SystemProperties;
import android.text.TextUtils;
import android.util.Config;
import android.util.Log;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import com.android.internal.app.AlertActivity;
import com.android.internal.app.AlertController;
import org.apache.commons.codec.binary.Base64;
/**
* The "dialog" that shows from "License" in the Settings app.
*/
public class SettingsLicenseActivity extends AlertActivity {
private static final String TAG = "SettingsLicenseActivity";
private static final boolean LOGV = false || Config.LOGV;
private static final String DEFAULT_LICENSE_PATH = "/system/etc/NOTICE.html";
private static final String PROPERTY_LICENSE_PATH = "ro.config.license_path";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String fileName = SystemProperties.get(PROPERTY_LICENSE_PATH, DEFAULT_LICENSE_PATH);
if (TextUtils.isEmpty(fileName)) {
Log.e(TAG, "The system property for the license file is empty.");
showErrorAndFinish();
return;
}
FileReader fileReader = null;
StringBuilder data = null;
try {
data = new StringBuilder(2048);
char tmp[] = new char[2048];
int numRead;
fileReader = new FileReader(fileName);
while ((numRead = fileReader.read(tmp)) >= 0) {
data.append(tmp, 0, numRead);
}
} catch (FileNotFoundException e) {
Log.e(TAG, "License HTML file not found at " + fileName, e);
showErrorAndFinish();
return;
} catch (IOException e) {
Log.e(TAG, "Error reading license HTML file at " + fileName, e);
showErrorAndFinish();
return;
} finally {
try {
if (fileReader != null) {
fileReader.close();
}
} catch (IOException e) {
}
}
if (TextUtils.isEmpty(data)) {
Log.e(TAG, "License HTML is empty (from " + fileName + ")");
showErrorAndFinish();
return;
}
WebView webView = new WebView(this);
if (LOGV) Log.v(TAG, "Started encode at " + System.currentTimeMillis());
// Need to encode to base64 for WebView to load the contents properly
String dataStr;
try {
byte[] base64Bytes = Base64.encodeBase64(data.toString().getBytes("ISO8859_1"));
dataStr = new String(base64Bytes);
} catch (UnsupportedEncodingException e) {
Log.e(TAG, "Could not convert to base64", e);
showErrorAndFinish();
return;
}
if (LOGV) Log.v(TAG, "Ended encode at " + System.currentTimeMillis());
if (LOGV) {
Log.v(TAG, "Started test decode at " + System.currentTimeMillis());
Base64.decodeBase64(dataStr.getBytes());
Log.v(TAG, "Ended decode at " + System.currentTimeMillis());
}
// Begin the loading. This will be done in a separate thread in WebView.
webView.loadData(dataStr, "text/html", "base64");
webView.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
// Change from 'Loading...' to the real title
mAlert.setTitle(getString(R.string.settings_license_activity_title));
}
});
final AlertController.AlertParams p = mAlertParams;
p.mTitle = getString(R.string.settings_license_activity_loading);
p.mView = webView;
p.mForceInverseBackground = true;
setupAlert();
}
private void showErrorAndFinish() {
Toast.makeText(this, R.string.settings_license_activity_unavailable, Toast.LENGTH_LONG)
.show();
finish();
}
}
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