RbChat v4.56630229版本的 MD5 值为：d137f4b55d6b64b50641a810905f5957

以下内容为反编译后的 cz.java 源代码，内容仅作参考

package com.loc;

import android.content.Context;
import android.content.SharedPreferences;
import android.text.TextUtils;
import io.netty.handler.codec.rtsp.RtspHeaders;
import java.net.URL;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONObject;
public final class cz {
    private static cz d;
    private String[] e;
    private String g;
    private String h;
    private Context k;
    private long a = 0;
    private boolean b = false;
    private boolean c = false;
    private ArrayList<String> f = new ArrayList<>();
    private int i = 0;
    private long j = 120000;
    private boolean l = false;
    private boolean m = false;

    private cz(Context context) {
        this.k = context;
    }

    public static synchronized cz a(Context context) {
        cz czVar;
        synchronized (cz.class) {
            if (d == null) {
                d = new cz(context);
            }
            czVar = d;
        }
        return czVar;
    }

    static boolean a(String[] strArr, String[] strArr2) {
        if (strArr.length == 0 || strArr2 == null || strArr2.length == 0 || strArr.length != strArr2.length) {
            return false;
        }
        int length = strArr.length;
        for (int i = 0; i < length; i++) {
            if (!strArr[i].equals(strArr2[i])) {
                return false;
            }
        }
        return true;
    }

    private void b() {
        if (this.l) {
            try {
                SharedPreferences.Editor edit = this.k.getSharedPreferences("cbG9jaXA", 0).edit();
                edit.remove("last_ip");
                dm.a(edit);
            } catch (Throwable th) {
                dg.a(th, "SpUtil", "setPrefsLong");
            }
            this.l = false;
        }
    }

    static void b(cz czVar) {
        String str = czVar.e[0];
        if (str.equals(czVar.g) || czVar.f.contains(str)) {
            return;
        }
        czVar.g = str;
        dm.a(czVar.k, "cbG9jaXA", "last_ip", str);
    }

    private synchronized void b(boolean z) {
        if (!z) {
            if (!df.A() && this.m) {
                return;
            }
        }
        if (this.a != 0) {
            long currentTimeMillis = System.currentTimeMillis();
            long j = this.a;
            if (currentTimeMillis - j < this.j) {
                return;
            }
            if (currentTimeMillis - j < 60000) {
                return;
            }
        }
        this.a = System.currentTimeMillis();
        this.m = true;
        aj.d().submit(new Runnable() {
            @Override
            public final void run() {
                JSONArray jSONArray;
                int length;
                int i;
                da daVar = new da();
                daVar.f = "http://" + df.D() + "?host=apilocatesrc.amap.com";
                try {
                    bj.a();
                    JSONObject jSONObject = new JSONObject(new String(bj.b(daVar)));
                    if (!jSONObject.has("ips") || (length = (jSONArray = jSONObject.getJSONArray("ips")).length()) == 0) {
                        return;
                    }
                    String[] strArr = new String[length];
                    for (int i2 = 0; i2 < length; i2++) {
                        strArr[i2] = jSONArray.getString(i2);
                    }
                    if (!cz.a(strArr, cz.this.e)) {
                        cz.this.e = strArr;
                        cz.b(cz.this);
                    }
                    if (!jSONObject.has(RtspHeaders.Values.TTL) || (i = jSONObject.getInt(RtspHeaders.Values.TTL)) <= 30) {
                        return;
                    }
                    cz.this.j = i * 1000;
                } catch (Throwable th) {
                    JSONObject jSONObject2 = new JSONObject();
                    try {
                        jSONObject2.put("key", "dnsError");
                        jSONObject2.put("reason", th.getMessage());
                    } catch (Throwable unused) {
                    }
                    dk.a(cz.this.k, "O018", jSONObject2);
                }
            }
        });
    }

    private String c() {
        String str;
        int i = 0;
        b(false);
        String[] strArr = this.e;
        if (strArr == null || strArr.length <= 0) {
            String b = dm.b(this.k, "cbG9jaXA", "last_ip", (String) null);
            if (!TextUtils.isEmpty(b) && !this.f.contains(b)) {
                this.g = b;
                this.h = b;
                this.l = true;
            }
            return this.g;
        }
        int length = strArr.length;
        while (true) {
            if (i >= length) {
                str = null;
                break;
            }
            str = strArr[i];
            if (!this.f.contains(str)) {
                break;
            }
            i++;
        }
        if (TextUtils.isEmpty(str)) {
            return null;
        }
        this.g = str;
        return str;
    }

    public final String a(dc dcVar) {
        if (dcVar != null) {
            try {
                String c = dcVar.c();
                String host = new URL(c).getHost();
                if (!"http://abroad.apilocate.amap.com/mobile/binary".equals(c) && !"abroad.apilocate.amap.com".equals(host)) {
                    String str = "apilocate.amap.com".equalsIgnoreCase(host) ? "httpdns.apilocate.amap.com" : host;
                    String c2 = c();
                    if (!TextUtils.isEmpty(c2)) {
                        dcVar.g = c.replace(host, c2);
                        dcVar.b().put("host", str);
                        dcVar.b(str);
                        return c2;
                    }
                }
            } catch (Throwable unused) {
            }
        }
        return null;
    }

    public final void a() {
        if (this.c) {
            b();
            return;
        }
        this.f.add(this.g);
        b();
        b(true);
    }

    public final void a(boolean z) {
        this.c = z;
        if (!z || TextUtils.isEmpty(this.g) || this.g.equals(this.h)) {
            return;
        }
        String str = this.g;
        this.h = str;
        dm.a(this.k, "cbG9jaXA", "last_ip", str);
        this.l = true;
    }
}