Android Crash Handler

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//


import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.State;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.os.Process;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.TreeSet;
import java.util.Map.Entry;

public class CrashHandle implements UncaughtExceptionHandler {
    public static final String TAG = "CrashHandle";
    private UncaughtExceptionHandler mDefaultHandler;
    private static CrashHandle instance = new CrashHandle();
    private Context mcontext;
    private Properties mDeviceCrashInfo = new Properties();
    private Map<String, String> mDevInfos = new HashMap();
    private SimpleDateFormat formatdate = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
    private static final String CRASH_REPORTER_EXTENSION = ".cr";

    private CrashHandle() {
    }

    public static CrashHandle getInstance() {
        if(instance == null) {
            instance = new CrashHandle();
        }

        return instance;
    }

    public void init(Context context) {
        this.mcontext = context;
        this.mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        Thread.setDefaultUncaughtExceptionHandler(this);
    }

    public void uncaughtException(Thread thread, Throwable ex) {
        if(!this.handleException(ex) && this.mDefaultHandler != null) {
            this.mDefaultHandler.uncaughtException(thread, ex);
        } else {
            try {
                Thread.sleep(3000L);
            } catch (InterruptedException var4) {
                Log.e("CrashHandle", "error");
            }

            Process.killProcess(Process.myPid());
            System.exit(1);
        }

    }

    private boolean handleException(Throwable ex) {
        if(ex == null) {
            return false;
        } else {
            String msg = ex.getLocalizedMessage();
            (new Thread() {
                public void run() {
                    Looper.prepare();
                    Looper.loop();
                }
            }).start();
            this.collectDeviceInfo(this.mcontext);
            this.saveCrashInfo2File(ex);
            this.sendCrashReportsToServer(this.mcontext);
            return true;
        }
    }

    public void sendPreviousReportsToServer() {
        this.sendCrashReportsToServer(this.mcontext);
    }

    private void sendCrashReportsToServer(Context mcontext) {
        String[] crFiles = this.getCrashReportFiles(mcontext);
        if(crFiles != null && crFiles.length > 0) {
            TreeSet<String> sortedFiles = new TreeSet();
            sortedFiles.addAll(Arrays.asList(crFiles));
            Iterator var5 = sortedFiles.iterator();

            while(var5.hasNext()) {
                String fileName = (String)var5.next();
                File cr = new File(mcontext.getFilesDir(), fileName);
                this.postReport(cr);
            }
        }

    }

    private void postReport(File cr) {
    }

    private String[] getCrashReportFiles(Context mcontext) {
        File filesDir = mcontext.getFilesDir();
        FilenameFilter filter = new FilenameFilter() {
            public boolean accept(File dir, String filename) {
                return filename.endsWith(".cr");
            }
        };
        return filesDir.list(filter);
    }

    private String saveCrashInfo2File(Throwable ex) {
        StringBuffer buffer = new StringBuffer();
        Iterator var4 = this.mDevInfos.entrySet().iterator();

        String result;
        while(var4.hasNext()) {
            Entry<String, String> entry = (Entry)var4.next();
            String key = (String)entry.getKey();
            result = (String)entry.getValue();
            buffer.append(key + "=" + result + '\n');
        }

        Writer writer = new StringWriter();
        PrintWriter printWriter = new PrintWriter(writer);
        ex.printStackTrace(printWriter);

        for(Throwable cause = ex.getCause(); cause != null; cause = cause.getCause()) {
            cause.printStackTrace();
        }

        printWriter.close();
        result = writer.toString();
        buffer.append(result);

        try {
            long timestamp = System.currentTimeMillis();
            String time = this.formatdate.format(new Date(timestamp));
            String fileName = "crash-" + time + "-" + timestamp + ".log";
            if(Environment.getExternalStorageState().equals("mounted")) {
                String path = "/sdcard/crash/";
                File file = new File(path);
                if(!file.exists()) {
                    file.mkdirs();
                }

                FileOutputStream trace = this.mcontext.openFileOutput(path + fileName, 0);
                this.mDeviceCrashInfo.store(trace, "");
                trace.flush();
                trace.close();
                FileOutputStream fos = new FileOutputStream(path + fileName);
                fos.write(buffer.toString().getBytes());
                fos.flush();
                fos.close();
            }

            return fileName;
        } catch (Exception var15) {
            Log.e("CrashHandle", "an error occured while writing file...", var15);
            return null;
        }
    }

    private void collectDeviceInfo(Context ctx) {
        try {
            PackageManager pm = ctx.getPackageManager();
            PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), 1);
            if(pi != null) {
                String versionName = pi.versionName == null?"null":pi.versionName;
                String versionCode = String.valueOf(pi.versionCode);
                this.mDevInfos.put("versionName", versionName);
                this.mDevInfos.put("versionCode", versionCode);
            }
        } catch (NameNotFoundException var9) {
            Log.v("CrashHandle", "NameNotFoundException");
        }

        Field[] fields = Build.class.getDeclaredFields();
        Field[] var6 = fields;
        int var13 = fields.length;

        for(int var12 = 0; var12 < var13; ++var12) {
            Field field = var6[var12];

            try {
                field.setAccessible(true);
                this.mDevInfos.put(field.getName(), field.get((Object)null).toString());
                Log.v("CrashHandle", field.getName() + ":" + field.get((Object)null).toString());
            } catch (Exception var8) {
                Log.e("CrashHandle", "an error occured when collect crash info", var8);
            }
        }

    }

    public static boolean isNetworkAvailable(Context context) {
        ConnectivityManager mgr = (ConnectivityManager)context.getSystemService("connectivity");
        NetworkInfo[] info = mgr.getAllNetworkInfo();
        if(info != null) {
            for(int i = 0; i < info.length; ++i) {
                if(info[i].getState() == State.CONNECTED) {
                    return true;
                }
            }
        }

        return false;
    }
}