java 无需跳转页面，后台获取微博开放平台授权code（2019/5/7）

最近要做微博方面的功能，由于官方sdk需要去网页授权，对用户不是很友好，就从网上找了很多资料，最后参考了这位大佬的代码 。

https://blog.csdn.net/cambin04/article/details/72581491

不过可能版本不同，直接复制大佬的代码发现有些问题，不过稍作修改后就好了，大家可以参考下面的代码。

package cn.lpy.weibo.util;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

import org.apache.commons.io.IOUtils;
import org.apache.http.Consts;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.springframework.core.io.ClassPathResource;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

/**
 * @author lipengyu
 * @date 2019/5/7 14:29
 */
public class SinaUtil {

    private static String clientId = "你的clientId";
    private static String redirectURI = "你的回调地址";
    private static String url = "https://api.weibo.com/oauth2/authorize";
    private static String userId = "你的账号";
    private static String passwd = "你的密码";

    private static HttpClient client = HttpClients.createDefault();
    private static HttpResponse response = null;
    private static HttpGet httpGet = null;
    private static HttpEntity entity = null;

    private static ScriptEngineManager sem = new ScriptEngineManager();
    private static ScriptEngine se = sem.getEngineByName("javascript");
    private static String getJS() {
        try {
            return IOUtils.toString(new ClassPathResource("sina.js").getInputStream(), "UTF-8");
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    static {
        try {
            se.eval(getJS());
        } catch (ScriptException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    /**
     * 获取加密后的用户名
     *
     * @return
     */
    public static String getSu() {
        Invocable inv = (Invocable) se;
        try {
            return (String) inv.invokeFunction("getUs", userId);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 登录， 传入加密的用户名
     *
     * @param su
     * @return
     */
    public static JSONObject login(String su) {
        Invocable inv = (Invocable) se;
        httpGet = new HttpGet(
                "https://login.sina.com.cn/sso/prelogin.php?entry=openapi&callback=sinaSSOController.preloginCallBack&su="
                        + su + "&rsakt=mod&checkpin=1&client=ssologin.js(v1.4.18)&_=" + System.currentTimeMillis());

        httpGet.setHeader("Referer",
                url + "?withOfficalFlag=0&passwd=" + passwd
                        + "&action=submit&response_type=code&isLoginSina=0&redirect_uri=" + redirectURI + "&userId="
                        + userId + "&client_id=" + clientId);
        httpGet.setHeader("Host", "login.sina.com.cn");
        httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0");
        try {
            response = client.execute(httpGet);

            if (response != null) {
                entity = response.getEntity();
                // 执行回调函数
                String preloginCallBack = EntityUtils.toString(entity);
                se.eval(preloginCallBack);
                // 执行自己加入的获取密码方法
                String sp = (String) inv.invokeFunction("getPass", passwd);

                preloginCallBack = preloginCallBack.replace("sinaSSOController.preloginCallBack(", "");
                preloginCallBack = preloginCallBack.substring(0, preloginCallBack.length() - 1);
                JSONObject obj = JSON.parseObject(preloginCallBack);

                // 拼凑登陆数据
                HttpPost loginPost = new HttpPost(
                        "https://login.sina.com.cn/sso/login.php?client=ssologin.js(v1.4.18)&_" + System.currentTimeMillis()
                                + "&openapilogin=qrcode");
                List<NameValuePair> formData = new ArrayList<>();
                // 应用的App Key
                formData.add(new BasicNameValuePair("entry", "openapi"));
                // 应用的重定向页面
                formData.add(new BasicNameValuePair("gateway", "1"));
                // 模拟登录参数
                // 开发者或测试账号的用户名和密码
                formData.add(new BasicNameValuePair("from", ""));
                formData.add(new BasicNameValuePair("savestate", "0"));
                formData.add(new BasicNameValuePair("useticket", "1"));
                formData.add(new BasicNameValuePair("pagerefer", url));
                formData.add(new BasicNameValuePair("ct", "1800"));
                formData.add(new BasicNameValuePair("s", "1"));
                formData.add(new BasicNameValuePair("vsnf", "1"));
                formData.add(new BasicNameValuePair("vsnval", ""));
                formData.add(new BasicNameValuePair("door", ""));
                //formData.add(new BasicNameValuePair("appkey", appkey));
                formData.add(new BasicNameValuePair("su", su));
                formData.add(new BasicNameValuePair("service", "miniblog"));
                formData.add(new BasicNameValuePair("servertime", obj.getString("servertime")));
                formData.add(new BasicNameValuePair("nonce", obj.getString("nonce")));
                formData.add(new BasicNameValuePair("pwencode", "rsa2"));
                formData.add(new BasicNameValuePair("rsakv", obj.getString("rsakv")));
                formData.add(new BasicNameValuePair("sp", sp));
                formData.add(new BasicNameValuePair("sr", "1920*1080"));
                formData.add(new BasicNameValuePair("encoding", "UTF-8"));
                formData.add(new BasicNameValuePair("cdult", "2"));
                formData.add(new BasicNameValuePair("domain", "weibo.com"));
                formData.add(new BasicNameValuePair("prelt", "201"));
                formData.add(new BasicNameValuePair("returntype", "TEXT"));
                loginPost.setEntity(new UrlEncodedFormEntity(formData, Consts.UTF_8));

                loginPost.setHeader("Referer",
                        url + "?withOfficalFlag=0&passwd=" + passwd
                                + "&action=submit&response_type=code&isLoginSina=0&redirect_uri=" + redirectURI
                                + "&userId=" + userId + "&client_id=" + clientId);
                loginPost.setHeader("Host", "login.sina.com.cn");
                loginPost.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0");

                response = client.execute(loginPost);

                if (response != null) {

                    entity = response.getEntity();
                    String loginSuccess = EntityUtils.toString(entity);
                    obj = JSON.parseObject(loginSuccess);
                    return obj;
                }

            }
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 获取授权的token
     *
     * @param loginObj
     * @return
     */
    public static String getCode(JSONObject loginObj) {
        // 授權登陸
        HttpPost postMethod = new HttpPost(url);
        List<NameValuePair> nvps = new ArrayList<>();
        // 应用的App Key
        nvps.add(new BasicNameValuePair("client_id", clientId));
        // 应用的重定向页面
        nvps.add(new BasicNameValuePair("redirect_uri", redirectURI));
        // 模拟登录参数
        // 开发者或测试账号的用户名和密码
        nvps.add(new BasicNameValuePair("display", "default"));
        // 猜測是登陸的權證
        nvps.add(new BasicNameValuePair("ticket", loginObj.getString("ticket")));
        // nvps.add(new BasicNameValuePair("uid",
        // obj.getString("uid")));
        nvps.add(new BasicNameValuePair("regCallback", url + "?client_id=" + clientId
                + "&response_type=code&display=default&redirect_uri=" + redirectURI + "&from=&with_cookie="));
        nvps.add(new BasicNameValuePair("isLoginSina", "0"));
        nvps.add(new BasicNameValuePair("action", "login"));
        nvps.add(new BasicNameValuePair("withOfficalFlag", "0"));
        //nvps.add(new BasicNameValuePair("appkey62", appkey));
        postMethod.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));
        // 添加头信息
        postMethod.setHeader("Referer", url);
        postMethod.setHeader("Host", "api.weibo.com");
        postMethod.setHeader("Origin", "https://api.weibo.com");
        postMethod.setHeader("Content-Type", "application/x-www-form-urlencoded");
        postMethod.setHeader("Upgrade-Insecure-Requests", "1");
        postMethod.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1;rv:11.0) Gecko/20100101 Firefox/11.0");

        // client = HttpClients.createDefault();
        response = null;
        try {
            response = client.execute(postMethod);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        Header location = response.getFirstHeader("Location");
        if (location != null) {
            String retUrl = location.getValue();
            int begin = retUrl.indexOf("code=");
            if (begin != -1) {
                int end = retUrl.indexOf("&", begin);
                if (end == -1)
                    end = retUrl.length();
                String code = retUrl.substring(begin + 5, end);
                return code;
            }
        }
        return null;
    }


    public static void main(String[] args) {
        String su = SinaUtil.getSu();
        System.out.println("su::::::::::::" + su);
        JSONObject obj = SinaUtil.login(su);
        System.out.println("loginObj::::::::::::" + obj);
        String code = SinaUtil.getCode(obj);
        System.out.println("code::::::::::::" + code);
    }
}

这里再提供下sina.js的代码，新建sina.js放在classpath下，把下面这段直接复制粘贴就好了。

var sinaSSOEncoder = sinaSSOEncoder || {};
(function () {
    var k = 0;
    var h = 8;
    this.hex_sha1 = function (l) {
        return i(c(g(l), l.length * h))
    };
    var c = function (B, s) {
        B[s >> 5] |= 128 << (24 - s % 32);
        B[((s + 64 >> 9) << 4) + 15] = s;
        var C = Array(80);
        var A = 1732584193;
        var z = -271733879;
        var y = -1732584194;
        var v = 271733878;
        var u = -1009589776;
        for (var p = 0; p < B.length; p += 16) {
            var r = A;
            var q = z;
            var o = y;
            var n = v;
            var l = u;
            for (var m = 0; m < 80; m++) {
                if (m < 16) {
                    C[m] = B[p + m]
                } else {
                    C[m] = e(C[m - 3] ^ C[m - 8] ^ C[m - 14] ^ C[m - 16], 1)
                }
                var D = f(f(e(A, 5), a(m, z, y, v)), f(f(u, C[m]), d(m)));
                u = v;
                v = y;
                y = e(z, 30);
                z = A;
                A = D
            }
            A = f(A, r);
            z = f(z, q);
            y = f(y, o);
            v = f(v, n);
            u = f(u, l)
        }
        return Array(A, z, y, v, u)
    };
    var a = function (m, l, o, n) {
        if (m < 20) {
            return (l & o) | ((~l) & n)
        }
        if (m < 40) {
            return l ^ o ^ n
        }
        if (m < 60) {
            return (l & o) | (l & n) | (o & n)
        }
        return l ^ o ^ n
    };
    var d = function (l) {
        return (l < 20) ? 1518500249 : (l < 40) ? 1859775393 : (l < 60) ? -1894007588 : -899497514
    };
    var f = function (l, o) {
        var n = (l & 65535) + (o & 65535);
        var m = (l >> 16) + (o >> 16) + (n >> 16);
        return (m << 16) | (n & 65535)
    };
    var e = function (l, m) {
        return (l << m) | (l >>> (32 - m))
    };
    var g = function (o) {
        var n = Array();
        var l = (1 << h) - 1;
        for (var m = 0; m < o.length * h; m += h) {
            n[m >> 5] |= (o.charCodeAt(m / h) & l) << (24 - m % 32)
        }
        return n
    };
    var i = function (n) {
        var m = k ? "0123456789ABCDEF" : "0123456789abcdef";
        var o = "";
        for (var l = 0; l < n.length * 4; l++) {
            o += m.charAt((n[l >> 2] >> ((3 - l % 4) * 8 + 4)) & 15) + m.charAt((n[l >> 2] >> ((3 - l % 4) * 8)) & 15)
        }
        return o
    };
    var j = function (l) {
        var m = "",
            n = 0;
        for (; n < l.length; n++) {
                m += "%" + b(l[n])
            }
        return decodeURIComponent(m)
    };
    var b = function (l) {
        var m = "0" + l.toString(16);
        return m.length <= 2 ? m : m.substr(1)
    };
    this.base64 = {
        encode: function (n) {
            n = "" + n;
            if (n == "") {
                return ""
            }
            var l = "";
            var u, s, q = "";
            var t, r, p, o = "";
            var m = 0;
            do {
                u = n.charCodeAt(m++);
                s = n.charCodeAt(m++);
                q = n.charCodeAt(m++);
                t = u >> 2;
                r = ((u & 3) << 4) | (s >> 4);
                p = ((s & 15) << 2) | (q >> 6);
                o = q & 63;
                if (isNaN(s)) {
                    p = o = 64
                } else {
                    if (isNaN(q)) {
                        o = 64
                    }
                }
                l = l + this._1.charAt(t) + this._1.charAt(r) + this._1.charAt(p) + this._1.charAt(o);
                u = s = q = "";
                t = r = p = o = ""
            } while (m < n.length);
            return l
        },
        decode: function (t, q, m) {
            var s = function (C, E) {
                for (var D = 0; D < C.length; D++) {
                    if (C[D] === E) {
                        return D
                    }
                }
                return -1
            };
            if (typeof(t) == "string") {
                t = t.split("")
            }
            var n = [];
            var B, z, w = "";
            var A, y, v, u = "";
            if (t.length % 4 != 0) {}
            var l = /[^A-Za-z0-9+\/=]/;
            var x = this._1.split("");
            if (q == "urlsafe") {
                l = /[^A-Za-z0-9-_=]/;
                x = this._4.split("")
            }
            if (q == "subp_v2") {
                l = /[^A-Za-z0-9_=-]/;
                x = this._3.split("")
            }
            if (q == "subp_v3_3") {
                l = /[^A-Za-z0-9-_.-]/;
                x = this._2.split("")
            }
            var p = 0;
            if (q == "binnary") {
                x = [];
                for (p = 0; p <= 64; p++) {
                    x[p] = p + 128
                }
            }
            if (q != "binnary" && l.test(t.join(""))) {
                return m == "array" ? [] : ""
            }
            p = 0;
            do {
                A = s(x, t[p++]);
                y = s(x, t[p++]);
                v = s(x, t[p++]);
                u = s(x, t[p++]);
                B = (A << 2) | (y >> 4);
                z = ((y & 15) << 4) | (v >> 2);
                w = ((v & 3) << 6) | u;
                n.push(B);
                if (v != 64 && v != -1) {
                    n.push(z)
                }
                if (u != 64 && u != -1) {
                    n.push(w)
                }
                B = z = w = "";
                A = y = v = u = ""
            } while (p < t.length);
            if (m == "array") {
                return n
            }
            var r = "",
                o = 0;
            for (; o < n.lenth; o++) {
                    r += String.fromCharCode(n[o])
                }
            return r
        },
        _1: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
        _4: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=",
        _3: "uAL715W8e3jJCcNU0lT_FSXVgxpbEDdQ4vKaIOH2GBPtfzqsmYZo-wRM9i6hynrk=",
        _2: "5WFh28sGziZTeS1lBxCK-HgPq9IdMUwknybo.LJrQD3uj_Va7pE0XfcNR4AOYvm6t"
    };
    this.Cookie = {
        decode: function (o) {
            var n = [];
            var m = o.substr(0, 3);
            var l = o.substr(3);
            switch (m) {
            case "v01":
                for (var p = 0; p < l.length; p += 2) {
                    n.push(parseInt(l.substr(p, 2), 16))
                }
                return decodeURIComponent(j(sinaSSOEncoder.base64.decode(n, "binnary", "array")));
                break;
            case "v02":
                l = l.replace(/\./g, "=");
                n = sinaSSOEncoder.base64.decode(l, "urlsafe", "array");
                return j(sinaSSOEncoder.base64.decode(n, "binnary", "array"));
            default:
                return decodeURIComponent(o)
            }
        }
    };
    this.getSUBPCookie = {
        __parse: function (o) {
            var y, m, p, n, x, r = 0,
                q, t = {},
                l = "",
                u = "";
            if (!o) {
                    return t
                }
            do {
                    m = o[r];
                    y = ++r;
                    for (q = r; q < m + y; q++, r++) {
                        l += String.fromCharCode(o[q])
                    }
                    n = o[r];
                    y = ++r;
                    if (l == "status" || l == "flag") {
                        for (q = r; q < n + y; q++, r++) {
                            u += o[q]
                        }
                    } else {
                        u = o.slice(y, n + y);
                        try {
                            u = j(u)
                        } catch (w) {
                            u = ""
                        }
                        r += n
                    }
                    t[l] = u;
                    l = "";
                    u = ""
                } while (r < o.length);
            return t
        },
        decode: function (o) {
            var n = [],
                p, m = o.substr(0, 3),
                l = decodeURIComponent(o.substr(3));
            switch (m) {
                case "002":
                    n = sinaSSOEncoder.base64.decode(l, "subp_v2", "array");
                    return sinaSSOEncoder.getSUBPCookie.__parse(n);
                case "003":
                    p = l.substr(0, 1);
                    l = l.substr(1);
                    n = sinaSSOEncoder.base64.decode(l, "subp_v3_" + p, "array");
                    return sinaSSOEncoder.getSUBPCookie.__parse(n);
                default:
                    return decodeURIComponent(o)
                }
        }
    }
}).call(sinaSSOEncoder);
(function () {
    var av;
    var ah = 244837814094590;
    var Y = ((ah & 16777215) == 15715070);
 
    function aq(z, t, az) {
        if (z != null) {
            if ("number" == typeof z) {
                this.fromNumber(z, t, az)
            } else {
                if (t == null && "string" != typeof z) {
                    this.fromString(z, 256)
                } else {
                    this.fromString(z, t)
                }
            }
        }
    }
    function h() {
        return new aq(null)
    }
    function b(aB, t, z, aA, aD, aC) {
        while (--aC >= 0) {
            var az = t * this[aB++] + z[aA] + aD;
            aD = Math.floor(az / 67108864);
            z[aA++] = az & 67108863
        }
        return aD
    }
    function ax(aB, aG, aH, aA, aE, t) {
        var aD = aG & 32767,
            aF = aG >> 15;
        while (--t >= 0) {
                var az = this[aB] & 32767;
                var aC = this[aB++] >> 15;
                var z = aF * az + aC * aD;
                az = aD * az + ((z & 32767) << 15) + aH[aA] + (aE & 1073741823);
                aE = (az >>> 30) + (z >>> 15) + aF * aC + (aE >>> 30);
                aH[aA++] = az & 1073741823
            }
        return aE
    }
    function aw(aB, aG, aH, aA, aE, t) {
        var aD = aG & 16383,
            aF = aG >> 14;
        while (--t >= 0) {
                var az = this[aB] & 16383;
                var aC = this[aB++] >> 14;
                var z = aF * az + aC * aD;
                az = aD * az + ((z & 16383) << 14) + aH[aA] + aE;
                aE = (az >> 28) + (z >> 14) + aF * aC;
                aH[aA++] = az & 268435455
            }
        return aE
    }
    // if (Y && (navigator.appName == "Microsoft Internet Explorer")) {
    // aq.prototype.am = ax;
    // av = 30
    // } else {
    // if (Y && (navigator.appName != "Netscape")) {
            aq.prototype.am = b;
            av = 26
    // } else {
    // aq.prototype.am = aw;
    // av = 28
    // }
    // }
    aq.prototype.DB = av;
    aq.prototype.DM = ((1 << av) - 1);
    aq.prototype.DV = (1 << av);
    var Z = 52;
    aq.prototype.FV = Math.pow(2, Z);
    aq.prototype.F1 = Z - av;
    aq.prototype.F2 = 2 * av - Z;
    var ad = "0123456789abcdefghijklmnopqrstuvwxyz";
    var af = new Array();
    var ao, v;
    ao = "0".charCodeAt(0);
    for (v = 0; v <= 9; ++v) {
        af[ao++] = v
    }
    ao = "a".charCodeAt(0);
    for (v = 10; v < 36; ++v) {
        af[ao++] = v
    }
    ao = "A".charCodeAt(0);
    for (v = 10; v < 36; ++v) {
        af[ao++] = v
    }
    function ay(t) {
        return ad.charAt(t)
    }
    function A(z, t) {
        var az = af[z.charCodeAt(t)];
        return (az == null) ? -1 : az
    }
    function X(z) {
        for (var t = this.t - 1; t >= 0; --t) {
            z[t] = this[t]
        }
        z.t = this.t;
        z.s = this.s
    }
    function n(t) {
        this.t = 1;
        this.s = (t < 0) ? -1 : 0;
        if (t > 0) {
            this[0] = t
        } else {
            if (t < -1) {
                this[0] = t + DV
            } else {
                this.t = 0
            }
        }
    }
    function c(t) {
        var z = h();
        z.fromInt(t);
        return z
    }
    function w(aD, z) {
        var aA;
        if (z == 16) {
            aA = 4
        } else {
            if (z == 8) {
                aA = 3
            } else {
                if (z == 256) {
                    aA = 8
                } else {
                    if (z == 2) {
                        aA = 1
                    } else {
                        if (z == 32) {
                            aA = 5
                        } else {
                            if (z == 4) {
                                aA = 2
                            } else {
                                this.fromRadix(aD, z);
                                return
                            }
                        }
                    }
                }
            }
        }
        this.t = 0;
        this.s = 0;
        var aC = aD.length,
            az = false,
            aB = 0;
        while (--aC >= 0) {
                var t = (aA == 8) ? aD[aC] & 255 : A(aD, aC);
                if (t < 0) {
                    if (aD.charAt(aC) == "-") {
                        az = true
                    }
                    continue
                }
                az = false;
                if (aB == 0) {
                    this[this.t++] = t
                } else {
                    if (aB + aA > this.DB) {
                        this[this.t - 1] |= (t & ((1 << (this.DB - aB)) - 1)) << aB;
                        this[this.t++] = (t >> (this.DB - aB))
                    } else {
                        this[this.t - 1] |= t << aB
                    }
                }
                aB += aA;
                if (aB >= this.DB) {
                    aB -= this.DB
                }
            }
        if (aA == 8 && (aD[0] & 128) != 0) {
                this.s = -1;
                if (aB > 0) {
                    this[this.t - 1] |= ((1 << (this.DB - aB)) - 1) << aB
                }
            }
        this.clamp();
        if (az) {
                aq.ZERO.subTo(this, this)
            }
    }
    function O() {
        var t = this.s & this.DM;
        while (this.t > 0 && this[this.t - 1] == t) {
            --this.t
        }
    }
    function q(z) {
        if (this.s < 0) {
            return "-" + this.negate().toString(z)
        }
        var az;
        if (z == 16) {
            az = 4
        } else {
            if (z == 8) {
                az = 3
            } else {
                if (z == 2) {
                    az = 1
                } else {
                    if (z == 32) {
                        az = 5
                    } else {
                        if (z == 4) {
                            az = 2
                        } else {
                            return this.toRadix(z)
                        }
                    }
                }
            }
        }
        var aB = (1 << az) - 1,
            aE, t = false,
            aC = "",
            aA = this.t;
        var aD = this.DB - (aA * this.DB) % az;
        if (aA-- > 0) {
                if (aD < this.DB && (aE = this[aA] >> aD) > 0) {
                    t = true;
                    aC = ay(aE)
                }
                while (aA >= 0) {
                    if (aD < az) {
                        aE = (this[aA] & ((1 << aD) - 1)) << (az - aD);
                        aE |= this[--aA] >> (aD += this.DB - az)
                    } else {
                        aE = (this[aA] >> (aD -= az)) & aB;
                        if (aD <= 0) {
                            aD += this.DB;
                            --aA
                        }
                    }
                    if (aE > 0) {
                        t = true
                    }
                    if (t) {
                        aC += ay(aE)
                    }
                }
            }
        return t ? aC : "0"
    }
    function R() {
        var t = h();
        aq.ZERO.subTo(this, t);
        return t
    }
    function ak() {
        return (this.s < 0) ? this.negate() : this
    }
    function G(t) {
        var az = this.s - t.s;
        if (az != 0) {
            return az
        }
        var z = this.t;
        az = z - t.t;
        if (az != 0) {
            return az
        }
        while (--z >= 0) {
            if ((az = this[z] - t[z]) != 0) {
                return az
            }
        }
        return 0
    }
    function j(z) {
        var aA = 1,
            az;
        if ((az = z >>> 16) != 0) {
                z = az;
                aA += 16
            }
        if ((az = z >> 8) != 0) {
                z = az;
                aA += 8
            }
        if ((az = z >> 4) != 0) {
                z = az;
                aA += 4
            }
        if ((az = z >> 2) != 0) {
                z = az;
                aA += 2
            }
        if ((az = z >> 1) != 0) {
                z = az;
                aA += 1
            }
        return aA
    }
    function u() {
        if (this.t <= 0) {
            return 0
        }
        return this.DB * (this.t - 1) + j(this[this.t - 1] ^ (this.s & this.DM))
    }
    function ap(az, z) {
        var t;
        for (t = this.t - 1; t >= 0; --t) {
            z[t + az] = this[t]
        }
        for (t = az - 1; t >= 0; --t) {
            z[t] = 0
        }
        z.t = this.t + az;
        z.s = this.s
    }
    function W(az, z) {
        for (var t = az; t < this.t; ++t) {
            z[t - az] = this[t]
        }
        z.t = Math.max(this.t - az, 0);
        z.s = this.s
    }
    function s(aE, aA) {
        var z = aE % this.DB;
        var t = this.DB - z;
        var aC = (1 << t) - 1;
        var aB = Math.floor(aE / this.DB),
            aD = (this.s << z) & this.DM,
            az;
        for (az = this.t - 1; az >= 0; --az) {
                aA[az + aB + 1] = (this[az] >> t) | aD;
                aD = (this[az] & aC) << z
            }
        for (az = aB - 1; az >= 0; --az) {
                aA[az] = 0
            }
        aA[aB] = aD;
        aA.t = this.t + aB + 1;
        aA.s = this.s;
        aA.clamp()
    }
    function l(aD, aA) {
        aA.s = this.s;
        var aB = Math.floor(aD / this.DB);
        if (aB >= this.t) {
            aA.t = 0;
            return
        }
        var z = aD % this.DB;
        var t = this.DB - z;
        var aC = (1 << z) - 1;
        aA[0] = this[aB] >> z;
        for (var az = aB + 1; az < this.t; ++az) {
            aA[az - aB - 1] |= (this[az] & aC) << t;
            aA[az - aB] = this[az] >> z
        }
        if (z > 0) {
            aA[this.t - aB - 1] |= (this.s & aC) << t
        }
        aA.t = this.t - aB;
        aA.clamp()
    }
    function aa(z, aA) {
        var az = 0,
            aB = 0,
            t = Math.min(z.t, this.t);
        while (az < t) {
                aB += this[az] - z[az];
                aA[az++] = aB & this.DM;
                aB >>= this.DB
            }
        if (z.t < this.t) {
                aB -= z.s;
                while (az < this.t) {
                    aB += this[az];
                    aA[az++] = aB & this.DM;
                    aB >>= this.DB
                }
                aB += this.s
            } else {
                aB += this.s;
                while (az < z.t) {
                    aB -= z[az];
                    aA[az++] = aB & this.DM;
                    aB >>= this.DB
                }
                aB -= z.s
            }
        aA.s = (aB < 0) ? -1 : 0;
        if (aB < -1) {
                aA[az++] = this.DV + aB
            } else {
                if (aB > 0) {
                    aA[az++] = aB
                }
            }
        aA.t = az;
        aA.clamp()
    }
    function D(z, aA) {
        var t = this.abs(),
            aB = z.abs();
        var az = t.t;
        aA.t = az + aB.t;
        while (--az >= 0) {
                aA[az] = 0
            }
        for (az = 0; az < aB.t; ++az) {
                aA[az + t.t] = t.am(0, aB[az], aA, az, 0, t.t)
            }
        aA.s = 0;
        aA.clamp();
        if (this.s != z.s) {
                aq.ZERO.subTo(aA, aA)
            }
    }
    function Q(az) {
        var t = this.abs();
        var z = az.t = 2 * t.t;
        while (--z >= 0) {
            az[z] = 0
        }
        for (z = 0; z < t.t - 1; ++z) {
            var aA = t.am(z, t[z], az, 2 * z, 0, 1);
            if ((az[z + t.t] += t.am(z + 1, 2 * t[z], az, 2 * z + 1, aA, t.t - z - 1)) >= t.DV) {
                az[z + t.t] -= t.DV;
                az[z + t.t + 1] = 1
            }
        }
        if (az.t > 0) {
            az[az.t - 1] += t.am(z, t[z], az, 2 * z, 0, 1)
        }
        az.s = 0;
        az.clamp()
    }
    function E(aH, aE, aD) {
        var aN = aH.abs();
        if (aN.t <= 0) {
            return
        }
        var aF = this.abs();
        if (aF.t < aN.t) {
            if (aE != null) {
                aE.fromInt(0)
            }
            if (aD != null) {
                this.copyTo(aD)
            }
            return
        }
        if (aD == null) {
            aD = h()
        }
        var aB = h(),
            z = this.s,
            aG = aH.s;
        var aM = this.DB - j(aN[aN.t - 1]);
        if (aM > 0) {
                aN.lShiftTo(aM, aB);
                aF.lShiftTo(aM, aD)
            } else {
                aN.copyTo(aB);
                aF.copyTo(aD)
            }
        var aJ = aB.t;
        var az = aB[aJ - 1];
        if (az == 0) {
                return
            }
        var aI = az * (1 << this.F1) + ((aJ > 1) ? aB[aJ - 2] >> this.F2 : 0);
        var aQ = this.FV / aI,
            aP = (1 << this.F1) / aI,
            aO = 1 << this.F2;
        var aL = aD.t,
            aK = aL - aJ,
            aC = (aE == null) ? h() : aE;
        aB.dlShiftTo(aK, aC);
        if (aD.compareTo(aC) >= 0) {
                aD[aD.t++] = 1;
                aD.subTo(aC, aD)
            }
        aq.ONE.dlShiftTo(aJ, aC);
        aC.subTo(aB, aB);
        while (aB.t < aJ) {
                aB[aB.t++] = 0
            }
        while (--aK >= 0) {
                var aA = (aD[--aL] == az) ? this.DM : Math.floor(aD[aL] * aQ + (aD[aL - 1] + aO) * aP);
                if ((aD[aL] += aB.am(0, aA, aD, aK, 0, aJ)) < aA) {
                    aB.dlShiftTo(aK, aC);
                    aD.subTo(aC, aD);
                    while (aD[aL] < --aA) {
                        aD.subTo(aC, aD)
                    }
                }
            }
        if (aE != null) {
                aD.drShiftTo(aJ, aE);
                if (z != aG) {
                    aq.ZERO.subTo(aE, aE)
                }
            }
        aD.t = aJ;
        aD.clamp();
        if (aM > 0) {
                aD.rShiftTo(aM, aD)
            }
        if (z < 0) {
                aq.ZERO.subTo(aD, aD)
            }
    }
    function N(t) {
        var z = h();
        this.abs().divRemTo(t, null, z);
        if (this.s < 0 && z.compareTo(aq.ZERO) > 0) {
            t.subTo(z, z)
        }
        return z
    }
    function K(t) {
        this.m = t
    }
    function U(t) {
        if (t.s < 0 || t.compareTo(this.m) >= 0) {
            return t.mod(this.m)
        } else {
            return t
        }
    }
    function aj(t) {
        return t
    }
    function J(t) {
        t.divRemTo(this.m, null, t)
    }
    function H(t, az, z) {
        t.multiplyTo(az, z);
        this.reduce(z)
    }
    function at(t, z) {
        t.squareTo(z);
        this.reduce(z)
    }
    K.prototype.convert = U;
    K.prototype.revert = aj;
    K.prototype.reduce = J;
    K.prototype.mulTo = H;
    K.prototype.sqrTo = at;
 
    function B() {
        if (this.t < 1) {
            return 0
        }
        var t = this[0];
        if ((t & 1) == 0) {
            return 0
        }
        var z = t & 3;
        z = (z * (2 - (t & 15) * z)) & 15;
        z = (z * (2 - (t & 255) * z)) & 255;
        z = (z * (2 - (((t & 65535) * z) & 65535))) & 65535;
        z = (z * (2 - t * z % this.DV)) % this.DV;
        return (z > 0) ? this.DV - z : -z
    }
    function f(t) {
        this.m = t;
        this.mp = t.invDigit();
        this.mpl = this.mp & 32767;
        this.mph = this.mp >> 15;
        this.um = (1 << (t.DB - 15)) - 1;
        this.mt2 = 2 * t.t
    }
    function ai(t) {
        var z = h();
        t.abs().dlShiftTo(this.m.t, z);
        z.divRemTo(this.m, null, z);
        if (t.s < 0 && z.compareTo(aq.ZERO) > 0) {
            this.m.subTo(z, z)
        }
        return z
    }
    function ar(t) {
        var z = h();
        t.copyTo(z);
        this.reduce(z);
        return z
    }
    function P(t) {
        while (t.t <= this.mt2) {
            t[t.t++] = 0
        }
        for (var az = 0; az < this.m.t; ++az) {
            var z = t[az] & 32767;
            var aA = (z * this.mpl + (((z * this.mph + (t[az] >> 15) * this.mpl) & this.um) << 15)) & t.DM;
            z = az + this.m.t;
            t[z] += this.m.am(0, aA, t, az, 0, this.m.t);
            while (t[z] >= t.DV) {
                t[z] -= t.DV;
                t[++z]++
            }
        }
        t.clamp();
        t.drShiftTo(this.m.t, t);
        if (t.compareTo(this.m) >= 0) {
            t.subTo(this.m, t)
        }
    }
    function al(t, z) {
        t.squareTo(z);
        this.reduce(z)
    }
    function y(t, az, z) {
        t.multiplyTo(az, z);
        this.reduce(z)
    }
    f.prototype.convert = ai;
    f.prototype.revert = ar;
    f.prototype.reduce = P;
    f.prototype.mulTo = y;
    f.prototype.sqrTo = al;
 
    function i() {
        return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
    }
    function x(aE, aF) {
        if (aE > 4294967295 || aE < 1) {
            return aq.ONE
        }
        var aD = h(),
            az = h(),
            aC = aF.convert(this),
            aB = j(aE) - 1;
        aC.copyTo(aD);
        while (--aB >= 0) {
                aF.sqrTo(aD, az);
                if ((aE & (1 << aB)) > 0) {
                    aF.mulTo(az, aC, aD)
                } else {
                    var aA = aD;
                    aD = az;
                    az = aA
                }
            }
        return aF.revert(aD)
    }
    function am(az, t) {
        var aA;
        if (az < 256 || t.isEven()) {
            aA = new K(t)
        } else {
            aA = new f(t)
        }
        return this.exp(az, aA)
    }
    aq.prototype.copyTo = X;
    aq.prototype.fromInt = n;
    aq.prototype.fromString = w;
    aq.prototype.clamp = O;
    aq.prototype.dlShiftTo = ap;
    aq.prototype.drShiftTo = W;
    aq.prototype.lShiftTo = s;
    aq.prototype.rShiftTo = l;
    aq.prototype.subTo = aa;
    aq.prototype.multiplyTo = D;
    aq.prototype.squareTo = Q;
    aq.prototype.divRemTo = E;
    aq.prototype.invDigit = B;
    aq.prototype.isEven = i;
    aq.prototype.exp = x;
    aq.prototype.toString = q;
    aq.prototype.negate = R;
    aq.prototype.abs = ak;
    aq.prototype.compareTo = G;
    aq.prototype.bitLength = u;
    aq.prototype.mod = N;
    aq.prototype.modPowInt = am;
    aq.ZERO = c(0);
    aq.ONE = c(1);
 
    function k() {
        this.i = 0;
        this.j = 0;
        this.S = new Array()
    }
    function e(aB) {
        var aA, z, az;
        for (aA = 0; aA < 256; ++aA) {
            this.S[aA] = aA
        }
        z = 0;
        for (aA = 0; aA < 256; ++aA) {
            z = (z + this.S[aA] + aB[aA % aB.length]) & 255;
            az = this.S[aA];
            this.S[aA] = this.S[z];
            this.S[z] = az
        }
        this.i = 0;
        this.j = 0
    }
    function a() {
        var z;
        this.i = (this.i + 1) & 255;
        this.j = (this.j + this.S[this.i]) & 255;
        z = this.S[this.i];
        this.S[this.i] = this.S[this.j];
        this.S[this.j] = z;
        return this.S[(z + this.S[this.i]) & 255]
    }
    k.prototype.init = e;
    k.prototype.next = a;
 
    function an() {
        return new k()
    }
    var M = 256;
    var m;
    var T;
    var ab;
 
    function d(t) {
        T[ab++] ^= t & 255;
        T[ab++] ^= (t >> 8) & 255;
        T[ab++] ^= (t >> 16) & 255;
        T[ab++] ^= (t >> 24) & 255;
        if (ab >= M) {
            ab -= M
        }
    }
    function S() {
        d(new Date().getTime())
    }
    if (T == null) {
        T = new Array();
        ab = 0;
        var I;
        // if (navigator.appName == "Netscape" && navigator.appVersion < "5" &&
		// window.crypto && typeof(window.crypto.random) === "function") {
        // var F = window.crypto.random(32);
        // for (I = 0; I < F.length; ++I) {
        // T[ab++] = F.charCodeAt(I) & 255
        // }
        // }
        while (ab < M) {
            I = Math.floor(65536 * Math.random());
            T[ab++] = I >>> 8;
            T[ab++] = I & 255
        }
        ab = 0;
        S()
    }
    function C() {
        if (m == null) {
            S();
            m = an();
            m.init(T);
            for (ab = 0; ab < T.length; ++ab) {
                T[ab] = 0
            }
            ab = 0
        }
        return m.next()
    }
    function au(z) {
        var t;
        for (t = 0; t < z.length; ++t) {
            z[t] = C()
        }
    }
    function ac() {}
    ac.prototype.nextBytes = au;
 
    function g(z, t) {
        return new aq(z, t)
    }
    function ag(az, aA) {
        var t = "";
        var z = 0;
        while (z + aA < az.length) {
            t += az.substring(z, z + aA) + "\n";
            z += aA
        }
        return t + az.substring(z, az.length)
    }
    function r(t) {
        if (t < 16) {
            return "0" + t.toString(16)
        } else {
            return t.toString(16)
        }
    }
    function ae(aA, aD) {
        if (aD < aA.length + 11) {
            alert("Message too long for RSA");
            return null
        }
        var aC = new Array();
        var az = aA.length - 1;
        while (az >= 0 && aD > 0) {
            var aB = aA.charCodeAt(az--);
            if (aB < 128) {
                aC[--aD] = aB
            } else {
                if ((aB > 127) && (aB < 2048)) {
                    aC[--aD] = (aB & 63) | 128;
                    aC[--aD] = (aB >> 6) | 192
                } else {
                    aC[--aD] = (aB & 63) | 128;
                    aC[--aD] = ((aB >> 6) & 63) | 128;
                    aC[--aD] = (aB >> 12) | 224
                }
            }
        }
        aC[--aD] = 0;
        var z = new ac();
        var t = new Array();
        while (aD > 2) {
            t[0] = 0;
            while (t[0] == 0) {
                z.nextBytes(t)
            }
            aC[--aD] = t[0]
        }
        aC[--aD] = 2;
        aC[--aD] = 0;
        return new aq(aC)
    }
    function L() {
        this.n = null;
        this.e = 0;
        this.d = null;
        this.p = null;
        this.q = null;
        this.dmp1 = null;
        this.dmq1 = null;
        this.coeff = null
    }
    function o(z, t) {
        if (z != null && t != null && z.length > 0 && t.length > 0) {
            this.n = g(z, 16);
            this.e = parseInt(t, 16)
        } else {
            alert("Invalid RSA public key")
        }
    }
    function V(t) {
        return t.modPowInt(this.e, this.n)
    }
    function p(az) {
        var t = ae(az, (this.n.bitLength() + 7) >> 3);
        if (t == null) {
            return null
        }
        var aA = this.doPublic(t);
        if (aA == null) {
            return null
        }
        var z = aA.toString(16);
        if ((z.length & 1) == 0) {
            return z
        } else {
            return "0" + z
        }
    }
    L.prototype.doPublic = V;
    L.prototype.setPublic = o;
    L.prototype.encrypt = p;
    this.RSAKey = L
}).call(sinaSSOEncoder);
 
 
 
function SSOController() {
    var undefined;
    var me = this;
    var updateCookieTimer = null;
    var updateCookieTimeHardLimit = 1800;
    var cookieExpireTimeLength = 3600 * 24;
    var crossDomainForward = null;
    var crossDomainTimer = null;
    var crossDomainTime = 3;
    var autoLoginCallBack2 = null;
    var ssoCrosssDomainUrl = "http://login.sina.com.cn/sso/crossdomain.php";
    var ssoLoginUrl = "http://login.sina.com.cn/sso/login.php";
    var ssoLogoutUrl = "http://login.sina.com.cn/sso/logout.php";
    var ssoUpdateCookieUrl = "http://login.sina.com.cn/sso/updatetgt.php";
    var ssoPreLoginUrl = "http://login.sina.com.cn/sso/prelogin.php";
    var pincodeUrl = "http://login.sina.com.cn/cgi/pin.php";
    var vfValidUrl = "http://weibo.com/sguide/vdun.php";
    var generateVisitorUrl = "http://passport.weibo.com/visitor/visitor";
    var crossDomainUrlList = null;
    var loginMethod = "";
    var ssoServerTimeTimer = null;
    var ssoLoginTimer = null;
    var loginByConfig = null;
    var loginMethodCheck = null;
    var https = 1;
    var rsa = 2;
    var wsse = 4;
    var pcid = "";
    var tmpData = {};
    var preloginTimeStart = 0;
    var preloginTime = 0;
    var callbackLogoutStatus;
    this.https = 1;
    this.rsa = 2;
    this.wsse = 4;
    this.name = "sinaSSOController";
    this.loginFormId = "ssoLoginForm";
    this.scriptId = "ssoLoginScript";
    this.ssoCrossDomainScriptId = "ssoCrossDomainScriptId";
    this.loginFrameName = "ssoLoginFrame";
    this.appLoginURL = {
        "weibo.com": "https://passport.weibo.com/wbsso/login"
    };
    this.appDomainService = {
        "weibo.com": "miniblog"
    };
    this.loginExtraQuery = {};
    this.setDomain = false;
    this.feedBackUrl = "";
    this.service = "sso";
    this.domain = "sina.com.cn";
    this.from = "";
    this.pageCharset = "GB2312";
    this.useTicket = false;
    this.isCheckLoginState = false;
    this.isUpdateCookieOnLoad = true;
    this.useIframe = true;
    this.noActiveTime = 7200;
    this.autoUpdateCookieTime = 1800;
    this.loginType = rsa;
    this.timeoutEnable = false;
    this.loginTimeout = 5000;
    this.crossDomain = true;
    this.scriptLoginHttps = false;
    this.allowAutoFoundServerTime = false;
    this.allowAutoFoundServerTimeError = true;
    this.calcServerTimeInterval = 2000;
    this.servertime = null;
    this.nonce = null;
    this.rsaPubkey = null;
    this.rsakv = null;
    this.loginExtraFlag = {};
    this.cdult = false;
    this.crossDomainTime = 5;
    this.failRedirect = false;
    this.isGenerateVisitor = true;
    this.generateVisitorProbability = 1;
    this.generateVisitorDelay = 6;
    this.generateVisitorDomain = ["^.*sina.com.cn$"];
    this.getVersion = function () {
        return "ssologin.js(v1.4.18) 2014-06-12"
    };
    this.getEntry = function () {
        return me.entry
    };
    this.getClientType = function () {
        return me.getVersion().split(" ")[0]
    };
 
    
    this.customInit = function () {};
    this.customUpdateCookieCallBack = function (result) {};
    this.customLoginCallBack = function (loginStatus) {};
    this.customLogoutCallBack = function (result) {
        me.customLoginCallBack({
            result: false
        })
    };
    	
	this.preloginCallBack = function (result) {
		if (result && result.retcode == 0) {
			me.servertime = result.servertime;
			me.nonce = result.nonce;
			me.rsaPubkey = result.pubkey;
			me.rsakv = result.rsakv;
			pcid = result.pcid;
			preloginTime = (new Date()).getTime() - (new Date()).getTime() - (parseInt(result.exectime, 10) || 0)
		}
	}
	
	var parse_str = function (str) {
        var arr = str.split("&");
        var arrtmp;
        var arrResult = {};
        for (var i = 0; i < arr.length; i++) {
            arrtmp = arr[i].split("=");
            arrResult[arrtmp[0]] = urldecode(arrtmp[1])
        }
        return arrResult
    };
 
}
 
sinaSSOController = new SSOController();
 
function getUs(username){
	return sinaSSOEncoder.base64.encode(username);
}
 
function getPass(password){
	var RSAKey = new sinaSSOEncoder.RSAKey();   
	RSAKey.setPublic(sinaSSOController.rsaPubkey, '10001');   
	password = RSAKey.encrypt([sinaSSOController.servertime, sinaSSOController.nonce].join('\t') + '\n' + password);
	return password
}

最后再次感谢 cambin04 的文章 https://blog.csdn.net/cambin04/article/details/72581491