百度手机卫士 v8.1.5版本的 MD5 值为：15af71eae74e2f2b5b9f845fe77a4804

以下内容为反编译后的 wf.java 源代码，内容仅作参考

package dxoptimizer;

import android.content.Context;
import android.os.Build;
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import java.net.URLEncoder;

public class wf {
    private static Context b;
    public static boolean a = false;
    private static int c = 0;
    private static int d = 0;
    private static float e = 0.0f;
    private static int f = 0;
    private static String g = "";
    private static String h = "";
    private static String i = "";
    private static String j = "";
    private static String k = "";
    private static String l = "";
    private static String m = "";

    public static void a(Context context) {
        if (b == null) {
            b = context.getApplicationContext();
        }
    }

    public static int a() {
        if (c == 0) {
            c = b.getResources().getDisplayMetrics().widthPixels;
        }
        return c;
    }

    public static int b() {
        if (d == 0) {
            d = b.getResources().getDisplayMetrics().heightPixels;
        }
        return d;
    }

    public static int c() {
        if (f == 0) {
            f = b.getResources().getDisplayMetrics().densityDpi;
        }
        return f;
    }

    public static String d() {
        if (TextUtils.isEmpty(g)) {
            g = "Mozilla/5.0 (Linux; U; Android 5.1.8.1; zh-cn; Unknown Build/Unknown) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30";
            g = String.valueOf(g) + " hao123/" + e();
            g = String.valueOf(g) + "/" + wi.a(URLEncoder.encode(h()));
            g = String.valueOf(g) + "/" + URLEncoder.encode("381b");
            g = String.valueOf(g) + "/" + wi.a(URLEncoder.encode(wi.a(String.valueOf(f()) + g(), "MD5")));
            g = String.valueOf(g) + "/1";
            g = String.valueOf(g) + "/" + URLEncoder.encode("5.1.8.1");
            g = String.valueOf(g) + "/93";
            g = String.valueOf(g) + "/1";
        }
        return g;
    }

    public static String e() {
        if (TextUtils.isEmpty(h)) {
            try {
                h = "5.1.8.1 (Baidu; P1 " + Build.VERSION.RELEASE + ")";
            } catch (Exception e2) {
            }
        }
        return h;
    }

    public static String f() {
        if (TextUtils.isEmpty(i)) {
            if (b == null) {
                i = "";
            } else {
                TelephonyManager telephonyManager = (TelephonyManager) b.getSystemService("phone");
                if (b.getPackageManager().checkPermission("android.permission.READ_PHONE_STATE", b.getPackageName()) == 0) {
                    i = telephonyManager.getDeviceId();
                } else {
                    i = null;
                }
            }
        }
        if (TextUtils.isEmpty(i)) {
            i = "0";
        }
        return i;
    }

    public static String g() {
        if (TextUtils.isEmpty(j)) {
            try {
                j = Settings.System.getString(b.getContentResolver(), "android_id");
            } catch (Exception e2) {
            }
        }
        return j;
    }

    public static String h() {
        if (TextUtils.isEmpty(k)) {
            k = String.valueOf(Build.MODEL) + "_" + Build.VERSION.RELEASE + "_" + Build.VERSION.SDK_INT + "_" + Build.MANUFACTURER;
        }
        return k;
    }

    public static String b(Context context) {
        if (TextUtils.isEmpty(l)) {
            StringBuilder sb = new StringBuilder();
            sb.append("&_hao123_from=android_app&os=android&osbranch=a0");
            sb.append("&apiv=5.1.8.1");
            sb.append("&IMEI=" + f());
            sb.append("&appversion=93");
            sb.append("&appversionname=5.1.8.1");
            sb.append("&cuid=" + i());
            sb.append("&ua=" + a() + "_" + b() + "_android_");
            sb.append("5.1.8.1_" + c());
            sb.append("&ut=" + Build.MODEL + "_" + Build.VERSION.RELEASE);
            sb.append("_" + wi.a() + "_");
            sb.append(Build.BRAND.replace("_", ""));
            sb.append("&from=1010051a");
            sb.append("&cfrom=1010051a");
            l = sb.toString().replaceAll(" ", "%20");
        }
        return l;
    }

    public static String i() {
        if (TextUtils.isEmpty(m)) {
            m = wh.a(b).b("base_shared", wh.a, "device_cuid", "", false);
            if (TextUtils.isEmpty(m)) {
                m = vn.a(b.getApplicationContext());
                wh.a(b).a("base_shared", wh.a, "device_cuid", m, false);
            }
        }
        return m;
    }
}