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抖音视频分享页面_signature(2019版)

2023-03-15 22:06:00 时间

注意

2019年的代码已经过期,最新可参考2021年:抖音视频数据采集 (2021)

本文仅供参考学习,禁止用于任何形式的商业用途,违者自行承担责任。

抖音分享链接https://www.iesdouyin.com/share/user/102064772608

主要目的是追一下 抖音web分享页面 接口中 _signatrue 的生成。

打开控制台,找 _signature

signatyre:

可找到是 bytedAcrawler . sign() ,下面先看bytedAcrawler

bytedAcrawler:

douyin_falcon:node_modules/byted-acrawler/dist/runtime :

('gr$Daten Иb/s!l y͒yĹg,(lfi~ah`{mv,-n|jqewVxp{rvmmx,&effkx[!cs"l".Pq%widthl"@q&heightl"vr*getContextx$"2d[!cs#l#,*;?|u.|uc{uq$fontl#vr(fillTextx$$龘ฑภ경2<[#c}l#2q*shadowBlurl#1q-shadowOffsetXl#$$limeq+shadowColorl#vr#arcx88802[%c}l#vr&strokex[ c}l"v,)}eOmyoZB]mx[ cs!0s$l$Pb>>s!0s%yA0s"l"l!r&lengthb&l!l Bd>&+l!l &+l!l 6d>&+l!l &+ s,y=o!o!]/q"13o!l q"10o!],l 2d>& s.{s-yMo!o!]0q"13o!]*Ld>>b|s!o!l q"10o!],l!& s/yIo!o!].q"13o!],o!]*Jd>>b|&o!]+l &+ s0l-l!&l-l!i'1z141z4b/@d, [Object.defineProperty(e, "__esModule", {  value: !0})

sign: debug 调试一下,看看走的哪里。

发现走的这里:

这里其实没太多可以解释的。通过 搜索 和 Debug 慢慢找就可以。

接下来,把这几个处于不同文件的 JS 拼起来就可以了。

userAgent: “请使用你当前的设备UA”

function GetSignature(shareID) {
    this.navigator = {
        userAgent:  "请使用你当前设备的UA."
    };
    var e = {};
    var r = (function () {
        function e(e, a, r) {
            return (b[e] || (b[e] = t("x,y", "return x " + e + " y")))(r, a)
        }
        function a(e, a, r) {
            return (k[r] || (k[r] = t("x,y", "return new x[y](" + Array(r + 1).join(",x[++y]").substr(1) + ")")))(e, a)
        }

        function r(e, a, r) {
            var n, t, s = {}, b = s.d = r ? r.d + 1 : 0;
            for (s["$" + b] = s,
                     t = 0; t < b; t++)
                s[n = "$" + t] = r[n];
            for (t = 0,
                     b = s.length = a.length; t < b; t++)
                s[t] = a[t];
            return c(e, 0, s)
        }

        function c(t, b, k) {
            function u(e) {
                v[x++] = e
            }

            function f() {
                return g = t.charCodeAt(b++) - 32,
                    t.substring(b, b += g)
            }

            function l() {
                try {
                    y = c(t, b, k)
                } catch (e) {
                    h = e,
                        y = l
                }
            }

            for (var h, y, d, g, v = [], x = 0; ;)
                switch (g = t.charCodeAt(b++) - 32) {
                    case 1:
                        u(!v[--x]);
                        break;
                    case 4:
                        v[x++] = f();
                        break;
                    case 5:
                        u(function (e) {
                            var a = 0
                                , r = e.length;
                            return function () {
                                var c = a < r;
                                return c && u(e[a++]),
                                    c
                            }
                        }(v[--x]));
                        break;
                    case 6:
                        y = v[--x],
                            u(v[--x](y));
                        break;
                    case 8:
                        if (g = t.charCodeAt(b++) - 32,
                            l(),
                            b += g,
                            g = t.charCodeAt(b++) - 32,
                        y === c)
                            b += g;
                        else if (y !== l)
                            return y;
                        break;
                    case 9:
                        v[x++] = c;
                        break;
                    case 10:
                        u(s(v[--x]));
                        break;
                    case 11:
                        y = v[--x],
                            u(v[--x] + y);
                        break;
                    case 12:
                        for (y = f(),
                                 d = [],
                                 g = 0; g < y.length; g++)
                            d[g] = y.charCodeAt(g) ^ g + y.length;
                        u(String.fromCharCode.apply(null, d));
                        break;
                    case 13:
                        y = v[--x],
                            h = delete v[--x][y];
                        break;
                    case 14:
                        v[x++] = t.charCodeAt(b++) - 32;
                        break;
                    case 59:
                        u((g = t.charCodeAt(b++) - 32) ? (y = x,
                            v.slice(x -= g, y)) : []);
                        break;
                    case 61:
                        u(v[--x][t.charCodeAt(b++) - 32]);
                        break;
                    case 62:
                        g = v[--x],
                            k[0] = 65599 * k[0] + k[1].charCodeAt(g) >>> 0;
                        break;
                    case 65:
                        h = v[--x],
                            y = v[--x],
                            v[--x][y] = h;
                        break;
                    case 66:
                        u(e(t[b++], v[--x], v[--x]));
                        break;
                    case 67:
                        y = v[--x],
                            d = v[--x],
                            u((g = v[--x]).x === c ? r(g.y, y, k) : g.apply(d, y));
                        break;
                    case 68:
                        u(e((g = t[b++]) < "<" ? (b--,
                            f()) : g + g, v[--x], v[--x]));
                        break;
                    case 70:
                        u(!1);
                        break;
                    case 71:
                        v[x++] = n;
                        break;
                    case 72:
                        v[x++] = +f();
                        break;
                    case 73:
                        u(parseInt(f(), 36));
                        break;
                    case 75:
                        if (v[--x]) {
                            b++;
                            break
                        }
                    case 74:
                        g = t.charCodeAt(b++) - 32 << 16 >> 16,
                            b += g;
                        break;
                    case 76:
                        u(k[t.charCodeAt(b++) - 32]);
                        break;
                    case 77:
                        y = v[--x],
                            u(v[--x][y]);
                        break;
                    case 78:
                        g = t.charCodeAt(b++) - 32,
                            u(a(v, x -= g + 1, g));
                        break;
                    case 79:
                        g = t.charCodeAt(b++) - 32,
                            u(k["$" + g]);
                        break;
                    case 81:
                        h = v[--x],
                            v[--x][f()] = h;
                        break;
                    case 82:
                        u(v[--x][f()]);
                        break;
                    case 83:
                        h = v[--x],
                            k[t.charCodeAt(b++) - 32] = h;
                        break;
                    case 84:
                        v[x++] = !0;
                        break;
                    case 85:
                        v[x++] = void 0;
                        break;
                    case 86:
                        u(v[x - 1]);
                        break;
                    case 88:
                        h = v[--x],
                            y = v[--x],
                            v[x++] = h,
                            v[x++] = y;
                        break;
                    case 89:
                        u(function () {
                            function e() {
                                return r(e.y, arguments, k)
                            }

                            return e.y = f(),
                                e.x = c,
                                e
                        }());
                        break;
                    case 90:
                        v[x++] = null;
                        break;
                    case 91:
                        v[x++] = h;
                        break;
                    case 93:
                        h = v[--x];
                        break;
                    case 0:
                        return v[--x];
                    default:
                        u((g << 16 >> 16) - 16)
                }
        }

        var n = this
            , t = n.Function
            , s = Object.keys || function (e) {
            var a = {}
                , r = 0;
            for (var c in e)
                a[r++] = c;
            return a.length = r,
                a
        }
            , b = {}
            , k = {};
        return r
    })()

    ('gr$Daten Иb/s!l y͒yĹg,(lfi~ah`{mv,-n|jqewVxp{rvmmx,&effkx[!cs"l".Pq%widthl"@q&heightl"vr*getContextx$"2d[!cs#l#,*;?|u.|uc{uq$fontl#vr(fillTextx$$龘ฑภ경2<[#c}l#2q*shadowBlurl#1q-shadowOffsetXl#$$limeq+shadowColorl#vr#arcx88802[%c}l#vr&strokex[ c}l"v,)}eOmyoZB]mx[ cs!0s$l$Pb>>s!0s%yA0s"l"l!r&lengthb&l!l Bd>&+l!l &+l!l 6d>&+l!l &+ s,y=o!o!]/q"13o!l q"10o!],l 2d>& s.{s-yMo!o!]0q"13o!]*Ld>>b|s!o!l q"10o!],l!& s/yIo!o!].q"13o!],o!]*Jd>>b|&o!]+l &+ s0l-l!&l-l!i'1z141z4b/@d,[e]);

    return e.sign(shareID)

}
接下来我用 html 来 调用 这段 js。

用浏览器查看:

回归到正题,我们的目的是为了获取用户数据。

这个接口中,除了有 _signature 还有 dytk 等。 user_id = 分享页面的ID max_cursor = 第几页。第一页是0 dytk = 这个在页面中获取的

执行js代码 , 推荐使用selenium webdriver , nodejs计算出的签名结果,并不能通过验证, selenium webdriver 可以调用本地浏览器,计算出的签名可以跟浏览器直接访问访问计算出的签名一致。

更新:

上述规则已经不使用于目前的版本了。 最新需要由浏览器生成的signature,并且生成时需要 tac。 tac 在 分享页面可以用正则匹配出来,组合成html。

然后直接访问页面获得 singature,如下所示:

    <html style="font-size: 50px;"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  <title>抖音_signature破解title>
    head>
    <body>body>
    html>
    <script type="text/javascript">
    tac='i)69q9bkw3ws!i$14lus"0,<8~z|x7f@QGNCJF[\^D\KFYSk~^WSZhg,(lfi~ah`{md"inb|1d<,%Dscafgd"in,8[xtm}nLzNEGQMKAdGG^NTYx1ckgd"inb
    !function(t) {
        if (t.__M = t.__M || {},
        !t.__M.require) {
            var e, n, r = document.getElementsByTagName("head")[0], i = {}, o = {}, a = {}, u = {}, c = {}, s = {}, l = function(t, n) {
                if (!(t in u)) {
                    u[t] = !0;
                    var i = document.createElement("script");
                    if (n) {
                        var o = setTimeout(n, e.timeout);
                        i.onerror = function() {
                            clearTimeout(o),
                            n()
                        }
                        ;
                        var a = function() {
                            clearTimeout(o)
                        };
                        "onload"in i ? i.onload = a : i.onreadystatechange = function() {
                            ("loaded" === this.readyState || "complete" === this.readyState) && a()
                        }
                    }
                    return i.type = "text/javascript",
                    i.src = t,
                    r.appendChild(i),
                    i
                }
            }, f = function(t, e, n) {
                var r = i[t] || (i[t] = []);
                r.push(e);
                var o, a = c[t] || c[t + ".js"] || {}, u = a.pkg;
                o = u ? s[u].url || s[u].uri : a.url || a.uri || t,
                l(o, n && function() {
                    n(t)
                }
                )
            };
            n = function(t, e) {
                "function" != typeof e && (e = arguments[2]),
                t = t.replace(/.js$/i, ""),
                o[t] = e;
                var n = i[t];
                if (n) {
                    for (var r = 0, a = n.length; a > r; r++)
                        n[r]();
                    delete i[t]
                }
            }
            ,
            e = function(t) {
                if (t && t.splice)
                    return e.async.apply(this, arguments);
                t = e.alias(t);
                var n = a[t];
                if (n)
                    return n.exports;
                var r = o[t];
                if (!r)
                    throw "[ModJS] Cannot find module `" + t + "`";
                n = a[t] = {
                    exports: {}
                };
                var i = "function" == typeof r ? r.apply(n, [e, n.exports, n]) : r;
                return i && (n.exports = i),
                n.exports && !n.exports["default"] && Object.defineProperty && Object.isExtensible(n.exports) && Object.defineProperty(n.exports, "default", {
                    value: n.exports
                }),
                n.exports
            }
            ,
            e.async = function(n, r, i) {
                function a(t) {
                    for (var n, r = 0, h = t.length; h > r; r++) {
                        var p = e.alias(t[r]);
                        p in o ? (n = c[p] || c[p + ".js"],
                        n && "deps"in n && a(n.deps)) : p in s || (s[p] = !0,
                        l++,
                        f(p, u, i),
                        n = c[p] || c[p + ".js"],
                        n && "deps"in n && a(n.deps))
                    }
                }
                function u() {
                    if (0 === l--) {
                        for (var i = [], o = 0, a = n.length; a > o; o++)
                            i[o] = e(n[o]);
                        r && r.apply(t, i)
                    }
                }
                "string" == typeof n && (n = [n]);
                var s = {}
                  , l = 0;
                a(n),
                u()
            }
            ,
            e.resourceMap = function(t) {
                var e, n;
                n = t.res;
                for (e in n)
                    n.hasOwnProperty(e) && (c[e] = n[e]);
                n = t.pkg;
                for (e in n)
                    n.hasOwnProperty(e) && (s[e] = n[e])
            }
            ,
            e.loadJs = function(t) {
                l(t)
            }
            ,
            e.loadCss = function(t) {
                if (t.content) {
                    var e = document.createElement("style");
                    e.type = "text/css",
                    e.styleSheet ? e.styleSheet.cssText = t.content : e.innerHTML = t.content,
                    r.appendChild(e)
                } else if (t.url) {
                    var n = document.createElement("link");
                    n.href = t.url,
                    n.rel = "stylesheet",
                    n.type = "text/css",
                    r.appendChild(n)
                }
            }
            ,
            e.alias = function(t) {
                return t.replace(/.js$/i, "")
            }
            ,
            e.timeout = 5e3,
            t.__M.define = n,
            t.__M.require = e
        }
    }(this)
    __M.define("douyin_falcon:node_modules/byted-acrawler/dist/runtime", function(l, e) {
        Function(function(l) {
            return 'e(e,a,r){(b[e]||(b[e]=t("x,y","x "+e+" y")(r,a)}a(e,a,r){(k[r]||(k[r]=t("x,y","new x[y]("+Array(r+1).join(",x[y]")(1)+")")(e,a)}r(e,a,r){n,t,s={},b=s.d=r?r.d+1:0;for(s["$"+b]=s,t=0;t>>065:h=,y=,[y]=h66:u(e(t[b],,67:y=,d=,u((g=).x===c?r(g.y,y,k):g.apply(d,y68:u(e((g=t[b])<"<"?(b--,f):g+g,,70:u(!1)71:n72:+f73:u(parseInt(f,3675:if(){bcase 74:g=<<16>>16g76:u(k[])77:y=,u([y])78:g=,u(a(v,x-=g+1,g79:g=,u(k["$"+g])81:h=,[f]=h82:u([f])83:h=,k[]=h84:!085:void 086:u(v[x-1])88:h=,y=,h,y89:u({e{r(e.y,arguments,k)}e.y=f,e.x=c,e})90:null91:h93:h=0:;default:u((g<<16>>16)-16)}}n=this,t=n.Function,s=Object.keys||(e){a={},r=0;for(c in e)a[r]=c;a=r,a},b={},k={};r'.replace(/[-]/g, function(e) {
                return l[15 & e.charCodeAt(0)]
            })
        }("v[x++]=v[--x]t.charCodeAt(b++)-32function return ))++.substrvar .length(),b+=;break;case ;break}".split("")))()('gr$Daten Иb/s!l y͒yĹg,(lfi~ah`{mv,-n|jqewVxp{rvmmx,&effkx[!cs"l".Pq%widthl"@q&heightl"vr*getContextx$"2d[!cs#l#,*;?|u.|uc{uq$fontl#vr(fillTextx$$龘ฑภ경2<[#c}l#2q*shadowBlurl#1q-shadowOffsetXl#$$limeq+shadowColorl#vr#arcx88802[%c}l#vr&strokex[ c}l"v,)}eOmyoZB]mx[ cs!0s$l$Pb>>s!0s%yA0s"l"l!r&lengthb&l!l Bd>&+l!l &+l!l 6d>&+l!l &+ s,y=o!o!]/q"13o!l q"10o!],l 2d>& s.{s-yMo!o!]0q"13o!]*Ld>>b|s!o!l q"10o!],l!& s/yIo!o!].q"13o!],o!]*Jd>>b|&o!]+l &+ s0l-l!&l-l!i'1z141z4b/@d, [Object.defineProperty(e, "__esModule", {
            value: !0
        })])
    });
            dycs = __M.require("douyin_falcon:node_modules/byted-acrawler/dist/runtime")
            signc = dycs.sign(98969484054)
            document.title=signc
            document.write(signc)
    script>
    ```

有疑问 可留言联系我

抖音视频去水印:

1、获取视频链接地址

  • 可从分享页面中获取视频链接。

2、解析视频源地址

3、下载视频

  • 1.打开链接,直接右键另存为就可以保存到本地了。
  • 2.使用程序下载,则需要使用手机的UA。

2020-03-24 13:38:03 更新

抖音sign值生成失效分析(最新):

https://blog.csdn.net/weixin_43582101/article/details/105069087

完整版python代码:

上面主要是一些逻辑,代码现在已经发布在下面的文章中: https://blog.csdn.net/weixin_43582101/article/details/105946844