selenium - iframe子框架

Posted maplethefox

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特点

  网页中嵌套了网页,先切换到iframe子框架,然后再执行其他操作

方法

  browser.switch_to.iframe(iframe_element)

示例 - 登录qq邮箱

技术图片
from selenium import webdriver
import time

driver = webdriver.Chrome()
driver.get(https://mail.qq.com/)

# 切换到iframe子框架
login_frame = driver.find_element_by_id(login_frame)
driver.switch_to.frame(login_frame)

# 用户名+密码+登录
driver.find_element_by_id(u).send_keys(2621470058)
driver.find_element_by_id(p).send_keys(密码)
driver.find_element_by_id(login_button).click()

# 预留页面记载时间
time.sleep(5)

# 提取数据
ele = driver.find_element_by_id(useralias)
print(ele.text)
代码实现

百度翻译破解案例

目标

  破解百度翻译接口,抓取翻译结果数据

实现步骤

  1、F12抓包,找到json的地址,观察查询参数

1、POST地址: https://fanyi.baidu.com/v2transapi
2、Form表单数据(多次抓取在变的字段)
   from: zh
   to: en
   sign: 54706.276099  #这个是如何生成的?
   token: a927248ae7146c842bb4a94457ca35ee # 基本固定,但也想办法获取

  2抓取相关JS文件

右上角 - 搜索 - sign: - 找到具体JS文件(index_c8a141d.js) - 格式化输出

  3、在JS中寻找sign的生成代码

1、在格式化输出的JS代码中搜索: sign: 找到如下JS代码:sign: m(a),
2、通过设置断点,找到m(a)函数的位置,即生成sign的具体函数
   # 1. a 为要翻译的单词
   # 2. 鼠标移动到 m(a) 位置处,点击可进入具体m(a)函数代码块

  4、生成sign的m(a)函数具体代码如下(在一个大的define中)

技术图片
function a(r) 
        if (Array.isArray(r)) 
            for (var o = 0, t = Array(r.length); o < r.length; o++)
                t[o] = r[o];
            return t
        
        return Array.from(r)
    
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
//    , l = "" + String.fromCharCode(103) + String.fromCharCode(116) + String.fromCharCode(107);
//    u = null !== i ? i : (i = window[l] || "") || "";
//  断点调试,然后从网页源码中找到 window.gtk的值    
    var u = 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 = "" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(97) + ("" + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(54)), D = "" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(51) + ("" + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(98)) + ("" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode(102)), 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)
代码

  5、直接将代码写入本地js文件,利用pyexecjs模块执行js代码进行调试

  安装 pyexecjs模块

  sudo pip3 install pyexecjs

import execjs

with open(node.js,r) as f:
    js_data = f.read()
# 创建对象
exec_object = execjs.compile(js_data)
sign = exec_object.eval(e("hello"))
print(sign)

  获取token

# 在js中
token: window.common.token
# 在响应中想办法获取此值
token_url = https://fanyi.baidu.com/?aldtype=16047
regex: "token: ‘(.*?)‘"

  具体代码实现

技术图片
import requests
import re
import execjs

class BaiduTranslateSpider(object):
    def __init__(self):
        self.token_url = https://fanyi.baidu.com/?aldtype=16047
        self.post_url = https://fanyi.baidu.com/v2transapi
        self.headers = 
            accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3,
            # ‘accept-encoding‘: ‘gzip, deflate, br‘,
            accept-language: zh-CN,zh;q=0.9,
            cache-control: no-cache,
            cookie: BAIDUID=52920E829C1F64EE98183B703F4E37A9:FG=1; BIDUPSID=52920E829C1F64EE98183B703F4E37A9; PSTM=1562657403; 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; delPer=0; BDORZ=B490B5EBF6F3CD402E515D22BCDA1598; BCLID=6890774803653935935; BDSFRCVID=4XAsJeCCxG3DLCbwbJrKDGwjNA0UN_I3KhXZ3J; H_BDCLCKID_SF=tRk8oIDaJCvSe6r1MtQ_M4F_qxby26nUQ5neaJ5n0-nnhnL4W46bqJKFLtozKMoI3C7fotJJ5nololIRy6CKjjb-jaDqJ5n3bTnjstcS2RREHJrg-trSMDCShGRGWlO9WDTm_D_KfxnkOnc6qJj0-jjXqqo8K5Ljaa5n-pPKKRAaqD04bPbZL4DdMa7HLtAO3mkjbnczfn02OP5P5lJ_e-4syPRG2xRnWIvrKfA-b4ncjRcTehoM3xI8LNj405OTt2LEoDPMJKIbMI_rMbbfhKC3hqJfaI62aKDs_RCMBhcqEIL4eJOIb6_w5gcq0T_HttjtXR0atn7ZSMbSj4Qo5pK95p38bxnDK2rQLb5zah5nhMJS3j7JDMP0-4rJhxby523i5J6vQpnJ8hQ3DRoWXPIqbN7P-p5Z5mAqKl0MLIOkbC_6j5DWDTvLeU7J-n8XbI60XRj85-ohHJrFMtQ_q4tehHRMBUo9WDTm_DoTttt5fUj6qJj855jXqqo8KMtHJaFf-pPKKRAashnzWjrkqqOQ5pj-WnQr3mkjbn5yfn02OpjPX6joht4syPRG2xRnWIvrKfA-b4ncjRcTehoM3xI8LNj405OTt2LEoC0XtIDhMDvPMCTSMt_HMxrKetJyaR0JhpjbWJ5TEPnjDUOdLPDW-46HBM3xbKQw5CJGBf7zhpvdWhC5y6ISKx-_J68Dtf5; ZD_ENTRY=baidu; PSINO=2; H_PS_PSSID=26525_1444_21095_29578_29521_28518_29098_29568_28830_29221_26350_29459; locale=zh; Hm_lvt_64ecd82404c51e03dc91cb9e8c025574=1563426293,1563996067; 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; Hm_lpvt_64ecd82404c51e03dc91cb9e8c025574=1563999768; yjs_js_security_passport=2706b5b03983b8fa12fe756b8e4a08b98fb43022_1563999769_js,
            pragma: no-cache,
            upgrade-insecure-requests: 1,
            user-agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36,
        

    # 获取token
    def get_token(self):
        token_url = https://fanyi.baidu.com/?aldtype=16047
        # 定义请求头
        r = requests.get(self.token_url,headers=self.headers)
        token = re.findall(r"token: ‘(.*?)‘",r.text)
        window_gtk = re.findall(r"window.*?gtk = ‘(.*?)‘;</script>",r.text)
        if token:
            return token[0],window_gtk[0]

    # 获取sign
    def get_sign(self,word):
        with open(百度翻译.js,r) as f:
            js_data = f.read()

        exec_object = execjs.compile(js_data)
        sign = exec_object.eval(e("").format(word))

        return sign

    # 主函数
    def main(self,word,fro,to):
        token,gtk = self.get_token()
        sign = self.get_sign(word)
        # 找到form表单数据如下,sign和token需要想办法获取
        form_data = 
            from: fro,
            to: to,
            query: word,
            transtype: realtime,
            simple_means_flag: 3,
            sign: sign,
            token: token
        
        r = requests.post(self.post_url,data=form_data,headers=self.headers)
        print(r.json()[trans_result][data][0][dst])

if __name__ == __main__:
    spider = BaiduTranslateSpider()
    menu = 1. 英译汉 2. 汉译英
    choice = input(1. 英译汉 2. 汉译英 : )
    word = input(请输入要翻译的单词:)
    if choice == 1:
        fro,to = en,zh
    elif choice == 2:
        fro,to = zh,en

    spider.main(word,fro,to)
代码实现

 

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