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/*
* Copyright (C) 2015 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.settingslib;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Build;
import android.text.TextUtils;
import android.text.format.DateFormat;
import android.util.Log;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class DeviceInfoUtils {
private static final String TAG = "DeviceInfoUtils";
private static final String FILENAME_PROC_VERSION = "/proc/version";
private static final String FILENAME_MSV = "/sys/board_properties/soc/msv";
/**
* Reads a line from the specified file.
* @param filename the file to read from
* @return the first line, if any.
* @throws IOException if the file couldn't be read
*/
private static String readLine(String filename) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
try {
return reader.readLine();
} finally {
reader.close();
}
}
public static String getFormattedKernelVersion() {
try {
return formatKernelVersion(readLine(FILENAME_PROC_VERSION));
} catch (IOException e) {
Log.e(TAG, "IO Exception when getting kernel version for Device Info screen",
e);
return "Unavailable";
}
}
public static String formatKernelVersion(String rawKernelVersion) {
// Example (see tests for more):
// Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
// (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
// Thu Jun 28 11:02:39 PDT 2012
final String PROC_VERSION_REGEX =
"Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
"\\((\\S+?)\\) " + /* group 2: "x@y.com" (kernel builder) */
"(?:\\(gcc.+? \\)) " + /* ignore: GCC version information */
"(#\\d+) " + /* group 3: "#1" */
"(?:.*?)?" + /* ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
"((Sun|Mon|Tue|Wed|Thu|Fri|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */
Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
if (!m.matches()) {
Log.e(TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
return "Unavailable";
} else if (m.groupCount() < 4) {
Log.e(TAG, "Regex match on /proc/version only returned " + m.groupCount()
+ " groups");
return "Unavailable";
}
return m.group(1) + "\n" + // 3.0.31-g6fb96c9
m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
m.group(4); // Thu Jun 28 11:02:39 PDT 2012
}
/**
* Returns " (ENGINEERING)" if the msv file has a zero value, else returns "".
* @return a string to append to the model number description.
*/
public static String getMsvSuffix() {
// Production devices should have a non-zero value. If we can't read it, assume it's a
// production device so that we don't accidentally show that it's an ENGINEERING device.
try {
String msv = readLine(FILENAME_MSV);
// Parse as a hex number. If it evaluates to a zero, then it's an engineering build.
if (Long.parseLong(msv, 16) == 0) {
return " (ENGINEERING)";
}
} catch (IOException|NumberFormatException e) {
// Fail quietly, as the file may not exist on some devices, or may be unreadable
}
return "";
}
public static String getFeedbackReporterPackage(Context context) {
final String feedbackReporter =
context.getResources().getString(R.string.oem_preferred_feedback_reporter);
if (TextUtils.isEmpty(feedbackReporter)) {
// Reporter not configured. Return.
return feedbackReporter;
}
// Additional checks to ensure the reporter is on system image, and reporter is
// configured to listen to the intent. Otherwise, dont show the "send feedback" option.
final Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
PackageManager pm = context.getPackageManager();
List<ResolveInfo> resolvedPackages =
pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
for (ResolveInfo info : resolvedPackages) {
if (info.activityInfo != null) {
if (!TextUtils.isEmpty(info.activityInfo.packageName)) {
try {
ApplicationInfo ai =
pm.getApplicationInfo(info.activityInfo.packageName, 0);
if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
// Package is on the system image
if (TextUtils.equals(
info.activityInfo.packageName, feedbackReporter)) {
return feedbackReporter;
}
}
} catch (PackageManager.NameNotFoundException e) {
// No need to do anything here.
}
}
}
}
return null;
}
public static String getSecurityPatch() {
String patch = Build.VERSION.SECURITY_PATCH;
if (!"".equals(patch)) {
try {
SimpleDateFormat template = new SimpleDateFormat("yyyy-MM-dd");
Date patchDate = template.parse(patch);
String format = DateFormat.getBestDateTimePattern(Locale.getDefault(), "dMMMMyyyy");
patch = DateFormat.format(format, patchDate).toString();
} catch (ParseException e) {
// broken parse; fall through and use the raw string
}
return patch;
} else {
return null;
}
}
}
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