2020-08-13

一、先试着英汉翻译一波：

1.按F12打开调试台，再点击Network,再点击Headers,可以找到i=good,这就是我们刚才输入需要翻译的词语good,from Data中的就是请求的参数，分别为：

i: good

from: AUTO

to: AUTO

smartresult: dict

client: fanyideskweb

salt: 15972332870677

sign: 3a078c10344e67f95822ae9389e1363f

lts: 1597233287067

bv: 85c050fb1c0b4d824d801d079db7371a

doctype: json

version: 2.1

keyfrom: fanyi.web

action: FY_BY_CLICKBUTTION

2.在来翻译一个新的词语，看下这些参数有无变化

i: 我是中国人

from: AUTO

to: AUTO

smartresult: dict

client: fanyideskweb

salt: 15972365771410

sign: 744ebb7fd625f1d4d9d6a270e98536c2

lts: 1597236577141

bv: 85c050fb1c0b4d824d801d079db7371a

doctype: json

version: 2.1

keyfrom: fanyi.web

action: FY_BY_CLICKBUTTION

发现有5个参数是变化的（实际是4 个），分别为：

salt:

sign:

lts:

bv:

3.看看URL，#http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule（）

请求连接：http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule 去掉translate_o中的_o，不去的话，轻轻就数据结果：某道词典，英语翻译汉语正常，汉语翻译英语时，出现{'errorCode': 50} ，post请求方式

4.点击Initiator,可以看到所有的js文件都是@fanyi.min.js:1

5、点击@fanyi.min.js:1进入，

点击中间的{ },格式化一下。

再找到XHR/fetch Breakpoints，添加断点，你可以针对某一个请求或者请求的关键字设置断点：

再点一下‘+’输入url即可url为http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule

最后再去点击一下翻译按钮

6.翻译：我是中国人，点击t-translate,再点击Scope，再点击Local，再点击r，即可看到我们需要的参数，在吧鼠标放到中间的r上，r = v.generateSaltSign(n)，就会弹出Object框。就是我们需要的参数。

7.可以看到8941行，鼠标放到v.gen erateSaltSign(n)上，会弹出f r(e)函数，点击这个函数会进入第8368行，可以看到我们需要的参数

salt:

sign:

lts:

bv:

在8378行打上断点，再次点击翻译按钮，即可看多所有的参数值显示出来。

8.对于第一个 ts: r,相当于pythonzhong 的ts=r赋值，可以看到r = "" + (new Date).getTime()，知道了r,就知道了ts,r是js中 new Date().getTime()得到的是毫秒数，也就是时间戳，单位为毫秒,13位数字的字符串。

即可用python中的时间戳构造：

#13位时间戳获取方法：单位：毫秒

t1 = time.time()

ts= int(t1 * 1000)

ts=r

第二个参数：salt: i，相当于python中的salt= i赋值，i = r + parseInt(10 * Math.random(), 10)，意思是随机产生一个整数范围是0-9里面的一个随机数

ts=r,转化为字符转，parseInt(10 * Math.random(), 10)产生的随机数也转化为字符串，最后进行字符串拼接，而不是数字相加。请注意一下。跟实际的赋值对比，产生了一个14位数字的字符串，跟实际情况一样。

即可用python中的构造法：

salt= str(int(ts))+str(random.randint(0,10))

print(salt)

第三个参数：bv: t,相当于python中的bv=t赋值, var t = n.md5(navigator.appVersion),navigator.appVersion的值竟然是一个 User-Agent，那么重点来了，网上教程都是md5加密相关都是直接用python原生来生成，而我就选择直接扣代码。用python3调用js的库之execjs来扣，鼠标放到var t = n.md5(navigator.appVersion)中的n.md5（）上，将会出现f md5(e)函数，点击进入，来到8196行， md5: function(e){ }，把第8196行到8278行扣下来，再应用execjs解析出bv

注意：自调函数调用写法：

#var aa=function(e){ }和function aa(e){ }写法都可以，一样的

import execjs

f = open(r"text.js",encoding='utf-8').read()

ctx1 = execjs.compile(f)

bv=ctx1.call('md5_1',ua.random)

print(bv)

扣出来的js代码：主体为function md5_1(e) { } ，应用execjs解析，缺什么参数找什么参数，即可

第四个参数：sign: n.md5("fanyideskweb" + e + i + "]BjuETDhU)zqSxf-=B#7m"),相当于python中的sign=n.md5("fanyideskweb" + e + i + "]BjuETDhU)zqSxf-=B#7m"), salt=i,e是你输入需要翻译的词语，即可写成sign=n.md5("fanyideskweb" +str(e) + str(salt) + "]BjuETDhU)zqSxf-=B#7m"),继续选择直接扣代码。用python3调用js的库之execjs来扣，鼠标放到 sign: n.md5("fanyideskweb" + e + i + "]BjuETDhU)zqSxf-=B#7m")中的n.md5（）上，将会出现f md5(e)函数，点击进入，来到8196行， md5: function(e){ }，把第8196行到8278行扣下来，竟然和刚才的扣bv的方法相同，仅仅是参数不同而已，bv的是 n.md5(navigator.appVersion)中的navigator.appVersion参数，现在的asin的是sign=n.md5("fanyideskweb" +str(e) + str(salt) + "]BjuETDhU)zqSxf-=B#7m")中的"fanyideskweb" +str(e) + str(salt) + "]BjuETDhU)zqSxf-=B#7m"参数，再应用execjs解析出sign.

注意：自调函数调用写法：

#var aa=function(e){ }和function aa(e){ }写法都可以，一样的

import execjs

f = open(r"text.js",encoding='utf-8').read()

ctx1 = execjs.compile(f)

bv=ctx1.call('md5_2',ua.random)

print(bv)

扣出来的js代码：主体为function md5_2(e) { } ，应用execjs解析，缺什么参数找什么参数，即可

9.大功告成，四个可变参数全部搞定，即可搞定&

附上完整代码 python部分：

importtimeimportexecjsimportrandomimportrequestsimportjsonfromfake_useragentimportUserAgent# var aa=function(e) function aa(e)classYouDaoTanslate():def__init__(self):#类方法调用self.js_par()defjs_par(self):translation_data = input("请输入要翻译的词或者句子：")# 13位时间戳获取方法：单位：毫秒ua = UserAgent() print(ua.random) t1 = time.time() ts = int(t1 *1000) print(ts) salt = str(int(ts)) + str(random.randint(0,10)) print(salt) f = open(r"text.js", encoding='utf-8').read() ctx1 = execjs.compile(f) bv = ctx1.call('md5_1', ua.random) print(bv) ctx2 = execjs.compile(f) sign_data ='fanyideskweb'+ translation_data + salt +'mmbP%A-r6U3Nw(n]BjuEU'sign = ctx2.call('md5_2', sign_data) print(sign) self.get_translateData(translation_data,ua,ts,salt,bv,sign)defget_translateData(self,translation_data,ua,ts,salt,bv,sign):url ='http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule'headers = {'Host':'fanyi.youdao.com','Origin':'http://fanyi.youdao.com','Referer':'http://fanyi.youdao.com/','User-Agent': ua.random,'X-Requested-With':'XMLHttpRequest','Cookie':'OUTFOX_SEARCH_USER_ID_NCOO=892433278.3204294; OUTFOX_SEARCH_USER_ID="[email protected]"; _ntes_nnid=d2bb7793f13c9a83907e33d40665337a,1597158692753; JSESSIONID=aaamUZK4O580YaKjmjIpx; ___rl__test__cookies=1597227802599'} data = {'i': translation_data,'from':'AUTO','to':'AUTO','smartresult':'dict','client':'fanyideskweb','salt': str(salt),'sign': str(sign),'ts': str(ts),'bv': str(bv),'doctype':'json','version':'2.1','keyfrom':'fanyi.web','action':'FY_BY_CLICKBUTTION'} response = requests.post(url=url, data=data, headers=headers) response = requests.post(url=url, data=data, headers=headers) translate_results = json.loads(response.text)# 找到翻译结果if'translateResult'intranslate_results: translate_results = translate_results['translateResult'][0][0]['tgt'] print("翻译的结果是：%s"% translate_results)else: print(translate_results) self.js_par()YouDaoTanslate()

js部分:

varn =function(e, t){returne << t | e >>>32- t } , r =function(e, t){varn, r, i, a, o;returni =2147483648& e, a =2147483648& t, n =1073741824& e, r =1073741824& t, o = (1073741823& e) + (1073741823& t), n & r ?2147483648^ o ^ i ^ a : n | r ?1073741824& o ?3221225472^ o ^ i ^ a :1073741824^ o ^ i ^ a : o ^ i ^ a } , i =function(e, t, n){returne & t | ~e & n } , a =function(e, t, n){returne & n | t & ~n } , o =function(e, t, n){returne ^ t ^ n } , s =function(e, t, n){returnt ^ (e | ~n) } , l =function(e, t, a, o, s, l, c){returne = r(e, r(r(i(t, a, o), s), c)), r(n(e, l), t) } , c =function(e, t, i, o, s, l, c){returne = r(e, r(r(a(t, i, o), s), c)), r(n(e, l), t) } , u =function(e, t, i, a, s, l, c){returne = r(e, r(r(o(t, i, a), s), c)), r(n(e, l), t) } , d =function(e, t, i, a, o, l, c){returne = r(e, r(r(s(t, i, a), o), c)), r(n(e, l), t) } , f =function(e){for(vart, n = e.length, r = n +8, i =16* ((r - r %64) /64+1), a =Array(i -1), o =0, s =0; s < n; ) o = s %4*8, a[t = (s - s %4) /4] = a[t] | e.charCodeAt(s) << o, s++;returnt = (s - s %4) /4, o = s %4*8, a[t] = a[t] |128<< o, a[i -2] = n <<3, a[i -1] = n >>>29, a } , p =function(e){vart, n ="", r ="";for(t =0; t <=3; t++) n += (r ="0"+ (e >>>8* t &255).toString(16)).substr(r.length -2,2);returnn }, h =function(e){ e = e.replace(/\x0d\x0a/g,"\n");for(vart ="", n =0; n < e.length; n++) {varr = e.charCodeAt(n);if(r <128) t +=String.fromCharCode(r);elseif(r >127&& r <2048) t +=String.fromCharCode(r >>6|192), t +=String.fromCharCode(63& r |128);elseif(r >=55296&& r <=56319) {if(n +1< e.length) {vari = e.charCodeAt(n +1);if(i >=56320&& i <=57343) {vara =1024* (r -55296) + (i -56320) +65536; t +=String.fromCharCode(240| a >>18&7), t +=String.fromCharCode(128| a >>12&63), t +=String.fromCharCode(128| a >>6&63), t +=String.fromCharCode(128|63& a), n++ } } }elset +=String.fromCharCode(r >>12|224), t +=String.fromCharCode(r >>6&63|128), t +=String.fromCharCode(63& r |128) }returnt }; f =function(e){for(vart, n = e.length, r = n +8, i =16* ((r - r %64) /64+1), a =Array(i -1), o =0, s =0; s < n; ) o = s %4*8, a[t = (s - s %4) /4] = a[t] | e.charCodeAt(s) << o, s++;returnt = (s - s %4) /4, o = s %4*8, a[t] = a[t] |128<< o, a[i -2] = n <<3, a[i -1] = n >>>29, a }functionmd5_1(e){vart, n, i, a, o, s, m, g, v, y =Array();for(e = e, y = f, s =1732584193, m =4023233417, g =2562383102, v =271733878, t =0; t < y.length; t +=16) n = s, i = m, a = g, o = v, s = l(s, m, g, v, y[t +0],7,3614090360), v = l(v, s, m, g, y[t +1],12,3905402710), g = l(g, v, s, m, y[t +2],17,606105819), m = l(m, g, v, s, y[t +3],22,3250441966), s = l(s, m, g, v, y[t +4],7,4118548399), v = l(v, s, m, g, y[t +5],12,1200080426), g = l(g, v, s, m, y[t +6],17,2821735955), m = l(m, g, v, s, y[t +7],22,4249261313), s = l(s, m, g, v, y[t +8],7,1770035416), v = l(v, s, m, g, y[t +9],12,2336552879), g = l(g, v, s, m, y[t +10],17,4294925233), m = l(m, g, v, s, y[t +11],22,2304563134), s = l(s, m, g, v, y[t +12],7,1804603682), v = l(v, s, m, g, y[t +13],12,4254626195), g = l(g, v, s, m, y[t +14],17,2792965006), m = l(m, g, v, s, y[t +15],22,1236535329), s = c(s, m, g, v, y[t +1],5,4129170786), v = c(v, s, m, g, y[t +6],9,3225465664), g = c(g, v, s, m, y[t +11],14,643717713), m = c(m, g, v, s, y[t +0],20,3921069994), s = c(s, m, g, v, y[t +5],5,3593408605), v = c(v, s, m, g, y[t +10],9,38016083), g = c(g, v, s, m, y[t +15],14,3634488961), m = c(m, g, v, s, y[t +4],20,3889429448), s = c(s, m, g, v, y[t +9],5,568446438), v = c(v, s, m, g, y[t +14],9,3275163606), g = c(g, v, s, m, y[t +3],14,4107603335), m = c(m, g, v, s, y[t +8],20,1163531501), s = c(s, m, g, v, y[t +13],5,2850285829), v = c(v, s, m, g, y[t +2],9,4243563512), g = c(g, v, s, m, y[t +7],14,1735328473), m = c(m, g, v, s, y[t +12],20,2368359562), s = u(s, m, g, v, y[t +5],4,4294588738), v = u(v, s, m, g, y[t +8],11,2272392833), g = u(g, v, s, m, y[t +11],16,1839030562), m = u(m, g, v, s, y[t +14],23,4259657740), s = u(s, m, g, v, y[t +1],4,2763975236), v = u(v, s, m, g, y[t +4],11,1272893353), g = u(g, v, s, m, y[t +7],16,4139469664), m = u(m, g, v, s, y[t +10],23,3200236656), s = u(s, m, g, v, y[t +13],4,681279174), v = u(v, s, m, g, y[t +0],11,3936430074), g = u(g, v, s, m, y[t +3],16,3572445317), m = u(m, g, v, s, y[t +6],23,76029189), s = u(s, m, g, v, y[t +9],4,3654602809), v = u(v, s, m, g, y[t +12],11,3873151461), g = u(g, v, s, m, y[t +15],16,530742520), m = u(m, g, v, s, y[t +2],23,3299628645), s = d(s, m, g, v, y[t +0],6,4096336452), v = d(v, s, m, g, y[t +7],10,1126891415), g = d(g, v, s, m, y[t +14],15,2878612391), m = d(m, g, v, s, y[t +5],21,4237533241), s = d(s, m, g, v, y[t +12],6,1700485571), v = d(v, s, m, g, y[t +3],10,2399980690), g = d(g, v, s, m, y[t +10],15,4293915773), m = d(m, g, v, s, y[t +1],21,2240044497), s = d(s, m, g, v, y[t +8],6,1873313359), v = d(v, s, m, g, y[t +15],10,4264355552), g = d(g, v, s, m, y[t +6],15,2734768916), m = d(m, g, v, s, y[t +13],21,1309151649), s = d(s, m, g, v, y[t +4],6,4149444226), v = d(v, s, m, g, y[t +11],10,3174756917), g = d(g, v, s, m, y[t +2],15,718787259), m = d(m, g, v, s, y[t +9],21,3951481745), s = r(s, n), m = r(m, i), g = r(g, a), v = r(v, o);return(p(s) + p(m) + p(g) + p(v)).toLowerCase() }varn =function(e, t){returne << t | e >>>32- t } , r =function(e, t){varn, r, i, a, o;returni =2147483648& e, a =2147483648& t, n =1073741824& e, r =1073741824& t, o = (1073741823& e) + (1073741823& t), n & r ?2147483648^ o ^ i ^ a : n | r ?1073741824& o ?3221225472^ o ^ i ^ a :1073741824^ o ^ i ^ a : o ^ i ^ a } , i =function(e, t, n){returne & t | ~e & n } , a =function(e, t, n){returne & n | t & ~n } , o =function(e, t, n){returne ^ t ^ n } , s =function(e, t, n){returnt ^ (e | ~n) } , l =function(e, t, a, o, s, l, c){returne = r(e, r(r(i(t, a, o), s), c)), r(n(e, l), t) } , c =function(e, t, i, o, s, l, c){returne = r(e, r(r(a(t, i, o), s), c)), r(n(e, l), t) } , u =function(e, t, i, a, s, l, c){returne = r(e, r(r(o(t, i, a), s), c)), r(n(e, l), t) } , d =function(e, t, i, a, o, l, c){returne = r(e, r(r(s(t, i, a), o), c)), r(n(e, l), t) } , f =function(e){for(vart, n = e.length, r = n +8, i =16* ((r - r %64) /64+1), a =Array(i -1), o =0, s =0; s < n; ) o = s %4*8, a[t = (s - s %4) /4] = a[t] | e.charCodeAt(s) << o, s++;returnt = (s - s %4) /4, o = s %4*8, a[t] = a[t] |128<< o, a[i -2] = n <<3, a[i -1] = n >>>29, a } , p =function(e){vart, n ="", r ="";for(t =0; t <=3; t++) n += (r ="0"+ (e >>>8* t &255).toString(16)).substr(r.length -2,2);returnn }, h =function(e){ e = e.replace(/\x0d\x0a/g,"\n");for(vart ="", n =0; n < e.length; n++) {varr = e.charCodeAt(n);if(r <128) t +=String.fromCharCode(r);elseif(r >127&& r <2048) t +=String.fromCharCode(r >>6|192), t +=String.fromCharCode(63& r |128);elseif(r >=55296&& r <=56319) {if(n +1< e.length) {vari = e.charCodeAt(n +1);if(i >=56320&& i <=57343) {vara =1024* (r -55296) + (i -56320) +65536; t +=String.fromCharCode(240| a >>18&7), t +=String.fromCharCode(128| a >>12&63), t +=String.fromCharCode(128| a >>6&63), t +=String.fromCharCode(128|63& a), n++ } } }elset +=String.fromCharCode(r >>12|224), t +=String.fromCharCode(r >>6&63|128), t +=String.fromCharCode(63& r |128) }returnt }; f =function(e){for(vart, n = e.length, r = n +8, i =16* ((r - r %64) /64+1), a =Array(i -1), o =0, s =0; s < n; ) o = s %4*8, a[t = (s - s %4) /4] = a[t] | e.charCodeAt(s) << o, s++;returnt = (s - s %4) /4, o = s %4*8, a[t] = a[t] |128<< o, a[i -2] = n <<3, a[i -1] = n >>>29, a }functionmd5_2(e){vart, n, i, a, o, s, m, g, v, y =Array();for(e = e, y = f(e), s =1732584193, m =4023233417, g =2562383102, v =271733878, t =0; t < y.length; t +=16) n = s, i = m, a = g, o = v, s = l(s, m, g, v, y[t +0],7,3614090360), v = l(v, s, m, g, y[t +1],12,3905402710), g = l(g, v, s, m, y[t +2],17,606105819), m = l(m, g, v, s, y[t +3],22,3250441966), s = l(s, m, g, v, y[t +4],7,4118548399), v = l(v, s, m, g, y[t +5],12,1200080426), g = l(g, v, s, m, y[t +6],17,2821735955), m = l(m, g, v, s, y[t +7],22,4249261313), s = l(s, m, g, v, y[t +8],7,1770035416), v = l(v, s, m, g, y[t +9],12,2336552879), g = l(g, v, s, m, y[t +10],17,4294925233), m = l(m, g, v, s, y[t +11],22,2304563134), s = l(s, m, g, v, y[t +12],7,1804603682), v = l(v, s, m, g, y[t +13],12,4254626195), g = l(g, v, s, m, y[t +14],17,2792965006), m = l(m, g, v, s, y[t +15],22,1236535329), s = c(s, m, g, v, y[t +1],5,4129170786), v = c(v, s, m, g, y[t +6],9,3225465664), g = c(g, v, s, m, y[t +11],14,643717713), m = c(m, g, v, s, y[t +0],20,3921069994), s = c(s, m, g, v, y[t +5],5,3593408605), v = c(v, s, m, g, y[t +10],9,38016083), g = c(g, v, s, m, y[t +15],14,3634488961), m = c(m, g, v, s, y[t +4],20,3889429448), s = c(s, m, g, v, y[t +9],5,568446438), v = c(v, s, m, g, y[t +14],9,3275163606), g = c(g, v, s, m, y[t +3],14,4107603335), m = c(m, g, v, s, y[t +8],20,1163531501), s = c(s, m, g, v, y[t +13],5,2850285829), v = c(v, s, m, g, y[t +2],9,4243563512), g = c(g, v, s, m, y[t +7],14,1735328473), m = c(m, g, v, s, y[t +12],20,2368359562), s = u(s, m, g, v, y[t +5],4,4294588738), v = u(v, s, m, g, y[t +8],11,2272392833), g = u(g, v, s, m, y[t +11],16,1839030562), m = u(m, g, v, s, y[t +14],23,4259657740), s = u(s, m, g, v, y[t +1],4,2763975236), v = u(v, s, m, g, y[t +4],11,1272893353), g = u(g, v, s, m, y[t +7],16,4139469664), m = u(m, g, v, s, y[t +10],23,3200236656), s = u(s, m, g, v, y[t +13],4,681279174), v = u(v, s, m, g, y[t +0],11,3936430074), g = u(g, v, s, m, y[t +3],16,3572445317), m = u(m, g, v, s, y[t +6],23,76029189), s = u(s, m, g, v, y[t +9],4,3654602809), v = u(v, s, m, g, y[t +12],11,3873151461), g = u(g, v, s, m, y[t +15],16,530742520), m = u(m, g, v, s, y[t +2],23,3299628645), s = d(s, m, g, v, y[t +0],6,4096336452), v = d(v, s, m, g, y[t +7],10,1126891415), g = d(g, v, s, m, y[t +14],15,2878612391), m = d(m, g, v, s, y[t +5],21,4237533241), s = d(s, m, g, v, y[t +12],6,1700485571), v = d(v, s, m, g, y[t +3],10,2399980690), g = d(g, v, s, m, y[t +10],15,4293915773), m = d(m, g, v, s, y[t +1],21,2240044497), s = d(s, m, g, v, y[t +8],6,1873313359), v = d(v, s, m, g, y[t +15],10,4264355552), g = d(g, v, s, m, y[t +6],15,2734768916), m = d(m, g, v, s, y[t +13],21,1309151649), s = d(s, m, g, v, y[t +4],6,4149444226), v = d(v, s, m, g, y[t +11],10,3174756917), g = d(g, v, s, m, y[t +2],15,718787259), m = d(m, g, v, s, y[t +9],21,3951481745), s = r(s, n), m = r(m, i), g = r(g, a), v = r(v, o);return(p(s) + p(m) + p(g) + p(v)).toLowerCase() }

2020-08-13

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