做的一个python版的百度翻译,附代码
#!/usr/bin/env python # -*- coding:utf-8 -*- ''' 爬虫之百度翻译 需要的库有 js2py, requests, re, json ''' __author__ = 'YXQ' import js2py import requests import json import re #百度翻译的主页 url_fanyi = 'http://fanyi.baidu.com' #翻译时post的api url_api = 'http://fanyi.baidu.com/v2transapi' #设置 headers headers = { 'Cookie':'BIDUPSID=A360C8CE43082B9E2E23B5B111FC4363; PSTM=1485329732; to_lang_often=%5B%7B%22value%22%3A%22en%22%2C%22text%22%3A%22%u82F1%u8BED%22%7D%2C%7B%22value%22%3A%22zh%22%2C%22text%22%3A%22%u4E2D%u6587%22%7D%5D; REALTIME_TRANS_SWITCH=1; FANYI_WORD_SWITCH=1; HISTORY_SWITCH=1; SOUND_SPD_SWITCH=1; SOUND_PREFER_SWITCH=1; BDORZ=B490B5EBF6F3CD402E515D22BCDA1598; H_PS_PSSID=26524_1466_21124_18560_26350_22158; locale=zh; Hm_lvt_64ecd82404c51e03dc91cb9e8c025574=1531663222,1531743493; Hm_lpvt_64ecd82404c51e03dc91cb9e8c025574=1531748592; from_lang_often=%5B%7B%22value%22%3A%22zh%22%2C%22text%22%3A%22%u4E2D%u6587%22%7D%2C%7B%22value%22%3A%22en%22%2C%22text%22%3A%22%u82F1%u8BED%22%7D%5D; BAIDUID=96A2302A5D66AFBE539FFC68E881260F:FG=1', 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.104 Safari/537.36 Core/1.53.4882.400 QQBrowser/9.7.13076.400', } #get百度翻译主页,是为了得到token req_get = requests.get(url = url_fanyi, headers = headers) token = re.search(r"token: '(.*?)',", req_get.text, re.S).group(1) #需要翻译的内容,中英文都可以 translation_content = '我是一个中国人,我不为五斗米折腰' #读入js代码 def get_js(): with open('sign.js', 'r', encoding='utf-8') as f: return f.read() #使用js2py在python中运行js代码并得到sign run_js = js2py.EvalJs({}) run_js.execute(get_js()) sign = run_js.e(translation_content) data = { 'query':translation_content, 'sign':sign, 'token': token } req_post = requests.post(url = url_api, data = data, headers = headers) result = json.loads(req_post.text) print(result['trans_result']['data'][0]['dst'])
js代码
function n(r, o) { for (var t = 0; t < o.length - 2; t += 3) { var a = o.charAt(t + 2); a = a >= "a" ? a.charCodeAt(0) - 87 : Number(a), a = "+" === o.charAt(t + 1) ? r >>> a: r << a, r = "+" === o.charAt(t) ? r + a & 4294967295 : r ^ a } return r } function e(r) { var o = r.match(/[uD800-uDBFF][uDC00-uDFFF]/g); if (null === o) { var t = r.length; t > 30 && (r = "" + r.substr(0, 10) + r.substr(Math.floor(t / 2) - 5, 10) + r.substr( - 10, 10)) } else { for (var e = r.split(/[uD800-uDBFF][uDC00-uDFFF]/), C = 0, h = e.length, f = []; h > C; C++)"" !== e[C] && f.push.apply(f, a(e[C].split(""))), C !== h - 1 && f.push(o[C]); var g = f.length; g > 30 && (r = f.slice(0, 10).join("") + f.slice(Math.floor(g / 2) - 5, Math.floor(g / 2) + 5).join("") + f.slice( - 10).join("")) } var u = void 0, i = null; u = null !== i ? i: (i = "320305.131321201" || "") || ""; for (var d = u.split("."), m = Number(d[0]) || 0, s = Number(d[1]) || 0, S = [], c = 0, v = 0; v < r.length; v++) { var A = r.charCodeAt(v); 128 > A ? S[c++] = A: (2048 > A ? S[c++] = A >> 6 | 192 : (55296 === (64512 & A) && v + 1 < r.length && 56320 === (64512 & r.charCodeAt(v + 1)) ? (A = 65536 + ((1023 & A) << 10) + (1023 & r.charCodeAt(++v)), S[c++] = A >> 18 | 240, S[c++] = A >> 12 & 63 | 128) : S[c++] = A >> 12 | 224, S[c++] = A >> 6 & 63 | 128), S[c++] = 63 & A | 128) } for (var p = m, F = "+-a^+6", D = "+-3^+b+-f", b = 0; b < S.length; b++) p += S[b], p = n(p, F); return p = n(p, D), p ^= s, 0 > p && (p = (2147483647 & p) + 2147483648), p %= 1e6, p.toString() + "." + (p ^ m) }
将js代码保存为sign.js并放在python文件同目录