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这篇文章主要介绍“如何使用JS逆向方法”,在日常操作中,相信很多人在如何使用JS逆向方法问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”如何使用JS逆向方法”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
就是一个 html 表格, 熟悉的应该就直接能看出来, 然后还有img标签, a标签之类的。
当我们用chrome浏览器 (推荐用谷歌) 进入网易云官网,找到一首你喜欢的歌。
打开 f12 功能, 点击 XHR 过滤, 这个时候,我们点击播放, 在右侧就会重新捕获到新的网络请求,其中就包括我们需要的歌曲文件链接。就像这样。
v1?csrf … 这个网址就是刚刷的, 在响应中可以看到,有个url,你复制打开,就可以直接播放, 我们点击一下headers看看怎么发送的。
请求了request url , 用post发送, 下面有2个参数表单 params 和 encSecKey 貌似我们有下面2个参数就可以直接发送请求了, 所以直接就尝试了一下。
def spider(self): """ 这是爬取一首歌的方式, 复制params就可以发送请求 """ r = requests.post(self.params_url, params=self.params) if r.status_code == 200: mp3 = r.json().get("data")[0].get("url") rmp3 = requests.get(mp3, headers={"user-agent": self.ua}) if rmp3.status_code == 200: with open("像鱼.mp3", 'wb') as ;fw: ;fw.write(rmp3.content) print("下载成功")
最后成功下载。
也就是说,我们只需要知道这二个参数怎么来的,就可以自己构造了,那就想怎么就怎么了,这个时候,我们就可以打开浏览器自带的调试功能了。要打断点,要debug, 怎么打,怎么断? 仔细点看我图的注释就可以了。
还是之前的包, 你点击第四个 initiator 就会刷新出很多和他有关系的文件, 我们点击第一个。
然后就来到这样, 还记得之前的二个参数吧, 在这里我们直接 ctrl + f 找其中的一个参数。
这里可以看到 params , encSecKey 都是根据 bvz7s 来的, 而bvz7s 是根据 window.asrsea() 函数来的, 所以在这个 函数打一个断点, 继续看下一个搜索点
在这里,我们发现window.asrsea = d 所以就得看 d 函数,在d函数的语气中,我们都可以打上断点,以便观察清楚。 打上断电之后, 刷新页面,等待一段时间。
之后就到第一个断点处, 然后 f8 跳到下一个断点
然后就可以发现 d 接受的4个参数是什么了, (d, e, f, g) 在右侧我们也可以看到,多次测试发现,后面三个是加密参数,固定值,所以复制拿过来用就可以了, 对于第一个d = {“csrf_token”:"…"} 这个是用来记录你是否登入账号, 如果你没有登陆, 那就是空。
继续f8 跳转到最后
发现就是把最开始接受的4个参数,然后经过a, b, b, c 函数处理就可以了,那待会我们就要看看每个函数有什么作用,这就涉及到他们的加密方式了,但是在这里,就要思考一个问题了,关于最开始的4个参数, 就一个d会变, 其他都没变化, 而且d还是一个空或者乱七八糟的的数字, 那他是怎么知道我是哪一首歌? 哪个歌手,所以这个参数一定有问题, (后面经过加密测试,发现加密后参数长度少了很多) 所以在这里我就继续 调试了一下, 一样的操作。
调试一圈了,最后终于有一个靠谱的了,有歌曲的id 还有歌曲的音质, 其他的,如果不熟悉,可以每一个d都去试试,直到加密参数正确。
所以先确定d为
"{"ids":"[1459950258]","level":"standard","encodeType":"aac","csrf_token":"59098e191e8babbaef83f1b8bbbe5987"}"
姑且就用这个d参数去加密尝试一次吧。
回到之前d函数的区域,就在d的上面,我们就可以看到a,b,c 函数的执行过程。
我们只需要一个个了解好,然后用python语言转换一下就可以了。下面分模块讲这些。
function a(a) { var d, e, b = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", c = ""; for (d = 0; a > d; d += 1) e = Math.random() * b.length, e = Math.floor(e), c += b.charAt(e); return c }
熟悉的一看就知道, a函数接受一个a参数, 然后再一次循环中, 循环一次为a次, 然后从 b中 随机的挑选一些字符, 最后用字符串的形式返回, 对于Javascript来说,随机没那么容易,他需要用 random 生成 (0, 1) 的数,然后放大,取整,取值,累加,但对于python来说, 如下:
def SimulateFunctionA(self, length=None): """ @JavaScript function a(a) { var d, e, b = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", c = ""; for (d = 0; a > d; d += 1) e = Math.random() * b.length, e = Math.floor(e), c += b.charAt(e); return c } length : 16 using the python get the c """ b = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' c = random.sample(b, length) return "".join(c)
简单.
function b(a, b) { var c = CryptoJS.enc.Utf8.parse(b) , d = CryptoJS.enc.Utf8.parse("0102030405060708") , e = CryptoJS.enc.Utf8.parse(a) , f = CryptoJS.AES.encrypt(e, c, { iv: d, mode: CryptoJS.mode.CBC }); return f.toString() }
这是一个 AES 加密, 模式 CBC, 其实刚开始我也不知道AES加密是什么东西, 后面我查看了官网文档,参考了其他的办法,实现了。
观察这个函数, 接受了a,b, 其中a,b 是什么可以再函数d中看到到。
根据之前的分析, g是固定值,我们已经复制下来, d 认为是一个字符字典
"{"ids":"[1459950258]","level":"standard","encodeType":"aac","csrf_token":"59098e191e8babbaef83f1b8bbbe5987"}"
这样,我们用python语言加入这些参数,试着模拟一下。
def SimulateFunctionB(self, d, key): """ function b(a, b) { var c = CryptoJS.enc.Utf8.parse(b) , d = CryptoJS.enc.Utf8.parse("0102030405060708") , e = CryptoJS.enc.Utf8.parse(a) , f = CryptoJS.AES.encrypt(e, c, { iv: d, mode: CryptoJS.mode.CBC }); return f.toString() } a = `"{"ids":"[1459950258]","level":"standard","encodeType":"aac","csrf_token":"59098e191e8babbaef83f1b8bbbe5987"}"` b = key = self.g(first) = SimulateFunctionA()(second) """ key = key.encode() iv = self.iv.encode() aes = AES.new(key=key, mode=AES.MODE_CBC, iv=iv) text = pad(data_to_pad=d.encode(), block_size=AES.block_size) aes_text = aes.encrypt(plaintext=text) aes_texts = base64.b64encode(aes_text).decode() return aes_texts SimulateFunticonB(d=" `"{"ids":"[1459950258]","level":"standard","encodeType":"aac","csrf_token":"59098e191e8babbaef83f
这里也是成功实现了,截图我忘记截了。 关于如何AES加密,可以直接看我的,有时间有兴趣的也可以和我一样看官网文档。 都行, 实现就可以了。
function c(a, b, c) { var d, e; return setMaxDigits(131), d = new RSAKeyPair(b,"",c), e = encryptedString(d, a) }
一看很简单,其实复杂, 用到了RSA加密算法,关于RSA加密算法,我找了一些资料。
大致原理如图:
参考文档
我们用python这样实现;
def SimulateFunctionC(self, random16): """ a = 131 RSA加密原理 # num = pow(x, y) % z # 加密C=M^e mod n """ e = self.e f = self.f text = random16[::-1] num = pow(int(text.encode().hex(), 16), int(e, 16), int(f, 16)) return format(num, 'x').zfill(131) # TODO: last the num change the hex digit and left fill (131)
pow() 其实是可以接受三个参数的, 如果有第三个, 第三个就为取余值, 用上int(a, 16) 就可以直接将16进制转换为10进制, 最后的format(num, ‘x’) 将值用16进制形式输出, 然后zfill() 填充131 位数,, (根据函数C得知 位数为131)
分析了上面三个函数, 其实我们就可以直接编写程序加密了, 我们把程序连起来。
# -*- coding : utf-8 -*- # @Time : 2020/9/15 15:45 # @author : 沙漏在下雨# @Software : PyCharm# @CSDN : https://me.csdn.net/qq_45906219import requestsfrom get_useragent import GetUserAgentCSimport randomfrom Crypto.Util.Padding import padfrom Crypto.Cipher import AESimport base64class GetParams(object): def __init__(self): self.ua = GetUserAgentCS().get_user() self.params_url = 'https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=' self.e = "010001" self.g = "0CoJUm6Qyw8W8jud" self.iv = '0102030405060708' self.f = "00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a" \ "876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9" \ "d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e28" \ "9dc6935b3ece0462db0a22b8e7" self.params = None def SimulateFunctionA(self, length=None): """ @JavaScript function a(a) { var d, e, b = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", c = ""; for (d = 0; a > d; d += 1) e = Math.random() * b.length, e = Math.floor(e), c += b.charAt(e); return c } length : 16 using the python get the c """ b = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' c = random.sample(b, length) return "".join(c) def SimulateFunctionB(self, d, key): """ function b(a, b) { var c = CryptoJS.enc.Utf8.parse(b) , d = CryptoJS.enc.Utf8.parse("0102030405060708") , e = CryptoJS.enc.Utf8.parse(a) , f = CryptoJS.AES.encrypt(e, c, { iv: d, mode: CryptoJS.mode.CBC }); return f.toString() } a = "{"csrf_token":""}" b = key = self.g(first) = SimulateFunctionA()(second) """ key = key.encode() iv = self.iv.encode() aes = AES.new(key=key, mode=AES.MODE_CBC, iv=iv) text = pad(data_to_pad=d.encode(), block_size=AES.block_size) aes_text = aes.encrypt(plaintext=text) aes_texts = base64.b64encode(aes_text).decode() return aes_texts def SimulateFunctionC(self, random16): """ a = 131 RSA加密原理 # num = pow(x, y) % z # 加密C=M^e mod n """ e = self.e f = self.f text = random16[::-1] num = pow(int(text.encode().hex(), 16), int(e, 16), int(f, 16)) return format(num, 'x').zfill(131) # TODO: last the num change the hex digit and left fill (131) def spider(self): """ 这是爬取一首歌的方式, 复制params就可以发送请求 """ r = requests.post(self.params_url, params=self.params) if r.status_code == 200: mp3 = r.json().get("data")[0].get("url") rmp3 = requests.get(mp3, headers={"user-agent": self.ua}) if rmp3.status_code == 200: with open("像鱼.mp3", 'wb') as ;fw: ;fw.write(rmp3.content) print("下载成功") def get_encrypt_params(self, d=None): """ The function can encrypt your params if you give me a d @params: d debug your chrome browser """ i = self.SimulateFunctionA(length=16) encText = self.SimulateFunctionB(d, self.g) encText = self.SimulateFunctionB(encText, i) encSecKey = self.SimulateFunctionC(random16=i) return { "params": encText, "encSecKey": encSecKey }# a = GetParams()# a.spider()
说到底,我们还是要歌曲的id, 怎么来的,就需要继续看下去了。
直接这样就可以了。
如果你是进入歌手表单在这个界面,你是找不到需要的id表单数据的,在这里就要用selenium 去爬取然后分析了,
如果你在下面的情况下,就可以找到id表单数据。
还有一样的,在这个包,我们看到参数还是params 和 encSerKey 然后重复上面操作, 打断点调试,甚至加密方式都是一样,不断的打断点,最后发现d是这样的
{"hlpretag":"","hlposttag":"","s":"许嵩","type":"1","offset":"0","total":"true","limit":"30","csrf_token":""}
我们更改一下s的值, 歌曲名称 歌手 都可以, 构建好这个字典, 发送这个网址,就可以得到id了, 然后拿着id去继续构造上面的d值, 就可以拿到歌曲url了。
如下:
# -*- coding : utf-8 -*- # @Time : 2020/9/17 14:59 # @author : 沙漏在下雨# @Software : PyCharm# @CSDN : https://me.csdn.net/qq_45906219from GetParams import GetParamsimport requestsfrom get_useragent import GetUserAgentCSimport randomimport keyringimport yagmailclass DownMp3(object): def __init__(self): self.GetIdUrl = "https://music.163.com/weapi/cloudsearch/get/web?csrf_token=" self.GetMP3Url = 'https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=' self.ua = GetUserAgentCS().get_user() self.headers = {"User-Agent": self.ua} self.MUSIC_LIST = [] # The singer music demo list self.Sented_qq_email = self.get_email() def get_email(self): email_list = input("输入QQ邮箱 如果你有多个 请用空格隔开:").split() if len(email_list) == 1: if "@qq.com" not in email_list[0]: raise Exception("邮箱规格好像不合适,你输入的是 ", email_list[0]) else: return email_list[0] elif len(email_list) >= 2: for i in email_list: if "@qq.com" not in i: raise Exception("邮箱规格好像不合适,你输入的是 ", i) else: pass return email_list def my_request(self, url, model="get", params=None): if model == 'post': r = requests.post(url, headers=self.headers, params=params) if r.status_code == 200: r.encoding = r.apparent_encoding s = r.json() return s elif model == 'get': r = requests.get(url, headers=self.headers, params=params) if r.status_code == 200: return r.content else: raise Exception("method is error !") def get_mp3_id_demo(self, start=None): """ get the mp3 id {"hlpretag":"<span class=\"s-fc7\">","hlposttag":"</span>","s":"本兮","type":"1","offset":"0","total":"true","limit":"30","csrf_token":""} """ if start is None: raise Exception("You should enter a start name, but you enter start =", start) d = { "hlpretag": "<span class=\"s-fc7\">", "hlposttag": "</span>", "s": str(start), "type": "1", "offset": "0", "total": "true", "limit": "30", "csrf_token": "" } params = GetParams().get_encrypt_params(str(d)) return self.my_request(self.GetIdUrl, model="post", params=params)["result"]["songs"] def get_mp3_url(self, id): """ params: id the music of id fix the id into "{"ids":"[35440198]","level":"standard","encodeType":"aac","csrf_token":""}" so we can get the music the downpath """ d = {"ids": str([id]), "level": "standard", "encodeType": "aac", "csrf_token": ""} params = GetParams().get_encrypt_params(str(d)) context = self.my_request(self.GetMP3Url, model="post", params=params) mp3_path_url = context.get("data")[0]["url"] return mp3_path_url def print_id_list(self, id_list): """ params: id_list print the singer about 30s musics """ a = {} for index, value in enumerate(id_list): a['count'] = (index + 1) a["singer_name"] = value.get("name") a["id"] = value.get("id") a["album"] = value.get("al").get("name") a["image"] = value.get("al").get("picUrl") self.MUSIC_LIST.append(a.copy()) def random_get_mp3(self): mp3Ten = random.sample(self.MUSIC_LIST, 10) # 提出十首歌 content = "" # 把数据写入html中 方便发送 content += '<p><font size="20" color="Tan">Happy day for you !</font></p>' content += '<table border="1" style="border-collapse: collapse;">\n<caption>Today music demo </caption>\n<tr><th>序号</th><th>歌曲名</th><th>歌曲链接</th><th>歌曲所属</th><th>美图</th></tr>' count = 1 for j in mp3Ten: s = f"\n<tr><th>{count}</th><th>{j['singer_name']}</th>" \ f"<th><a href='{self.get_mp3_url(j['id'])}'>点击播放</a></th><th>{j['album']}</th>" \ f"<th><img src='{j['image']}' alt='美图' height='400' width='400' /></th></tr>" content += s count += 1 content += "</table>" return content def sent_email(self, content): """ sent the music demo list for you like one """ pwd = keyring.get_password("qqemail", "884427640") yag = yagmail.SMTP("884427640@qq.com", pwd, host="smtp.qq.com") # test qq 2817634007@qq.com yag.send(self.Sented_qq_email, '网易云专属推送', content) yag.close() print("Today music already sent ok!") def start_demo(self): try: start_name = input("input a music singer or music name " "if you like it:") id_list = self.get_mp3_id_demo(start=start_name) self.print_id_list(id_list) print(self.MUSIC_LIST) self.sent_email(self.random_get_mp3()) except Exception as e: print("出现error", e, "再试一次!") self.start_demo()# 如果要运行此程序 请打开下面的注释# a = DownMp3()# a.start_demo()
函数库用到
import keyring
import yagmail
下载一下就可以了,
关于keyring 这是一个保存密码的库, 对于一些密码来说,我们可以这样
keyring set qq 88442764然后就会让你输入密码 ,当你输入要获得就这样keyring get qq 884427640 就可以了前提你的keyring.exe 在环境变量中, 当然在python中,这个也是很简单使用的。
关于yagmail 这是一个发送邮箱的函数库
def sent_email(self, content): """ sent the music demo list for you like one """ pwd = keyring.get_password("qqemail", "884427640") yag = yagmail.SMTP("884427640@qq.com", pwd, host="smtp.qq.com") # test qq 2817634007@qq.com yag.send(self.Sented_qq_email, '网易云专属推送', content) yag.close() print("Today music already sent ok!")
pwd 这个是邮箱的QQ邮箱的授权码, 很长的字符串,要去QQ邮箱里面开启服务,所以我就放到密码库里面了,然后用SMTP链接一下邮箱, 就这样发送就可以了。
懂点html的都应该会编写这个。
就这样写一下就可以了。 发送全部代码:# -*- coding : utf-8 -*- # @Time : 2020/9/17 14:59 # @author : 沙漏在下雨# @Software : PyCharm# @CSDN : https://me.csdn.net/qq_45906219from GetParams import GetParamsimport requestsfrom get_useragent import GetUserAgentCSimport randomimport keyringimport yagmailclass DownMp3(object): def __init__(self): self.GetIdUrl = "https://music.163.com/weapi/cloudsearch/get/web?csrf_token=" self.GetMP3Url = 'https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=' self.ua = GetUserAgentCS().get_user() self.headers = {"User-Agent": self.ua} self.MUSIC_LIST = [] # The singer music demo list self.Sented_qq_email = self.get_email() def get_email(self): email_list = input("输入QQ邮箱 如果你有多个 请用空格隔开:").split() if len(email_list) == 1: if "@qq.com" not in email_list[0]: raise Exception("邮箱规格好像不合适,你输入的是 ", email_list[0]) else: return email_list[0] elif len(email_list) >= 2: for i in email_list: if "@qq.com" not in i: raise Exception("邮箱规格好像不合适,你输入的是 ", i) else: pass return email_list def my_request(self, url, model="get", params=None): if model == 'post': r = requests.post(url, headers=self.headers, params=params) if r.status_code == 200: r.encoding = r.apparent_encoding s = r.json() return s elif model == 'get': r = requests.get(url, headers=self.headers, params=params) if r.status_code == 200: return r.content else: raise Exception("method is error !") def get_mp3_id_demo(self, start=None): """ get the mp3 id {"hlpretag":"<span class=\"s-fc7\">","hlposttag":"</span>","s":"本兮","type":"1","offset":"0","total":"true","limit":"30","csrf_token":""} """ if start is None: raise Exception("You should enter a start name, but you enter start =", start) d = { "hlpretag": "<span class=\"s-fc7\">", "hlposttag": "</span>", "s": str(start), "type": "1", "offset": "0", "total": "true", "limit": "30", "csrf_token": "" } params = GetParams().get_encrypt_params(str(d)) return self.my_request(self.GetIdUrl, model="post", params=params)["result"]["songs"] def get_mp3_url(self, id): """ params: id the music of id fix the id into "{"ids":"[35440198]","level":"standard","encodeType":"aac","csrf_token":""}" so we can get the music the downpath """ d = {"ids": str([id]), "level": "standard", "encodeType": "aac", "csrf_token": ""} params = GetParams().get_encrypt_params(str(d)) context = self.my_request(self.GetMP3Url, model="post", params=params) mp3_path_url = context.get("data")[0]["url"] return mp3_path_url def print_id_list(self, id_list): """ params: id_list print the singer about 30s musics """ a = {} for index, value in enumerate(id_list): a['count'] = (index + 1) a["singer_name"] = value.get("name") a["id"] = value.get("id") a["album"] = value.get("al").get("name") a["image"] = value.get("al").get("picUrl") self.MUSIC_LIST.append(a.copy()) def random_get_mp3(self): mp3Ten = random.sample(self.MUSIC_LIST, 10) # 提出十首歌 content = "" # 把数据写入html中 方便发送 content += '<p><font size="20" color="Tan">Happy day for you !</font></p>' content += '<table border="1" style="border-collapse: collapse;">\n<caption>Today music demo </caption>\n<tr><th>序号</th><th>歌曲名</th><th>歌曲链接</th><th>歌曲所属</th><th>美图</th></tr>' count = 1 for j in mp3Ten: s = f"\n<tr><th>{count}</th><th>{j['singer_name']}</th>" \ f"<th><a href='{self.get_mp3_url(j['id'])}'>点击播放</a></th><th>{j['album']}</th>" \ f"<th><img src='{j['image']}' alt='美图' height='400' width='400' /></th></tr>" content += s count += 1 content += "</table>" return content def sent_email(self, content): """ sent the music demo list for you like one """ pwd = keyring.get_password("qqemail", "884427640") yag = yagmail.SMTP("884427640@qq.com", pwd, host="smtp.qq.com") # test qq 2817634007@qq.com yag.send(self.Sented_qq_email, '网易云专属推送', content) yag.close() print("Today music already sent ok!") def start_demo(self): try: start_name = input("input a music singer or music name " "if you like it:") id_list = self.get_mp3_id_demo(start=start_name) self.print_id_list(id_list) print(self.MUSIC_LIST) self.sent_email(self.random_get_mp3()) except Exception as e: print("出现error", e, "再试一次!") self.start_demo()# 如果要运行此程序 请打开下面的注释# a = DownMp3()# a.start_demo() def random_get_mp3(self): mp3Ten = random.sample(self.MUSIC_LIST, 10) # 提出十首歌 content = "" # 把数据写入html中 方便发送 content += '<p><font size="20" color="Tan">Happy day for you !</font></p>' content += '<table border="1" style="border-collapse: collapse;">\n<caption>Today music demo </caption>\n<tr><th>序号</th><th>歌曲名</th><th>歌曲链接</th><th>歌曲所属</th><th>美图</th></tr>' count = 1 for j in mp3Ten: s = f"\n<tr><th>{count}</th><th>{j['singer_name']}</th>" \ f"<th><a href='{self.get_mp3_url(j['id'])}'>点击播放</a></th><th>{j['album']}</th>" \ f"<th><img src='{j['image']}' alt='美图' height='400' width='400' /></th></tr>" content += s count += 1 content += "</table>" return content
就这样写一下就可以了。
# -*- coding : utf-8 -*- # @Time : 2020/9/17 14:59 # @author : 沙漏在下雨# @Software : PyCharm# @CSDN : https://me.csdn.net/qq_45906219from GetParams import GetParamsimport requestsfrom get_useragent import GetUserAgentCSimport randomimport keyringimport yagmailclass DownMp3(object): def __init__(self): self.GetIdUrl = "https://music.163.com/weapi/cloudsearch/get/web?csrf_token=" self.GetMP3Url = 'https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=' self.ua = GetUserAgentCS().get_user() self.headers = {"User-Agent": self.ua} self.MUSIC_LIST = [] # The singer music demo list self.Sented_qq_email = self.get_email() def get_email(self): email_list = input("输入QQ邮箱 如果你有多个 请用空格隔开:").split() if len(email_list) == 1: if "@qq.com" not in email_list[0]: raise Exception("邮箱规格好像不合适,你输入的是 ", email_list[0]) else: return email_list[0] elif len(email_list) >= 2: for i in email_list: if "@qq.com" not in i: raise Exception("邮箱规格好像不合适,你输入的是 ", i) else: pass return email_list def my_request(self, url, model="get", params=None): if model == 'post': r = requests.post(url, headers=self.headers, params=params) if r.status_code == 200: r.encoding = r.apparent_encoding s = r.json() return s elif model == 'get': r = requests.get(url, headers=self.headers, params=params) if r.status_code == 200: return r.content else: raise Exception("method is error !") def get_mp3_id_demo(self, start=None): """ get the mp3 id {"hlpretag":"<span class=\"s-fc7\">","hlposttag":"</span>","s":"本兮","type":"1","offset":"0","total":"true","limit":"30","csrf_token":""} """ if start is None: raise Exception("You should enter a start name, but you enter start =", start) d = { "hlpretag": "<span class=\"s-fc7\">", "hlposttag": "</span>", "s": str(start), "type": "1", "offset": "0", "total": "true", "limit": "30", "csrf_token": "" } params = GetParams().get_encrypt_params(str(d)) return self.my_request(self.GetIdUrl, model="post", params=params)["result"]["songs"] def get_mp3_url(self, id): """ params: id the music of id fix the id into "{"ids":"[35440198]","level":"standard","encodeType":"aac","csrf_token":""}" so we can get the music the downpath """ d = {"ids": str([id]), "level": "standard", "encodeType": "aac", "csrf_token": ""} params = GetParams().get_encrypt_params(str(d)) context = self.my_request(self.GetMP3Url, model="post", params=params) mp3_path_url = context.get("data")[0]["url"] return mp3_path_url def print_id_list(self, id_list): """ params: id_list print the singer about 30s musics """ a = {} for index, value in enumerate(id_list): a['count'] = (index + 1) a["singer_name"] = value.get("name") a["id"] = value.get("id") a["album"] = value.get("al").get("name") a["image"] = value.get("al").get("picUrl") self.MUSIC_LIST.append(a.copy()) def random_get_mp3(self): mp3Ten = random.sample(self.MUSIC_LIST, 10) # 提出十首歌 content = "" # 把数据写入html中 方便发送 content += '<p><font size="20" color="Tan">Happy day for you !</font></p>' content += '<table border="1" style="border-collapse: collapse;">\n<caption>Today music demo </caption>\n<tr><th>序号</th><th>歌曲名</th><th>歌曲链接</th><th>歌曲所属</th><th>美图</th></tr>' count = 1 for j in mp3Ten: s = f"\n<tr><th>{count}</th><th>{j['singer_name']}</th>" \ f"<th><a href='{self.get_mp3_url(j['id'])}'>点击播放</a></th><th>{j['album']}</th>" \ f"<th><img src='{j['image']}' alt='美图' height='400' width='400' /></th></tr>" content += s count += 1 content += "</table>" return content def sent_email(self, content): """ sent the music demo list for you like one """ pwd = keyring.get_password("qqemail", "884427640") yag = yagmail.SMTP("884427640@qq.com", pwd, host="smtp.qq.com") # test qq 2817634007@qq.com yag.send(self.Sented_qq_email, '网易云专属推送', content) yag.close() print("Today music already sent ok!") def start_demo(self): try: start_name = input("input a music singer or music name " "if you like it:") id_list = self.get_mp3_id_demo(start=start_name) self.print_id_list(id_list) print(self.MUSIC_LIST) self.sent_email(self.random_get_mp3()) except Exception as e: print("出现error", e, "再试一次!") self.start_demo()# 如果要运行此程序 请打开下面的注释# a = DownMp3()# a.start_demo()
扩展了一个下载一首歌的代码,如果你需要。
# -*- coding : utf-8 -*- # @Time : 2020/9/17 21:35 # @author : 沙漏在下雨# @Software : PyCharm# @CSDN : https://me.csdn.net/qq_45906219import requestsfrom get_useragent import GetUserAgentCSfrom GetParams import GetParamsfrom DownMp3 import DownMp3class DownOneMp3(DownMp3): def __init__(self): super().__init__() self.GetIdUrl = "https://music.163.com/weapi/cloudsearch/get/web?csrf_token=" self.params_url = "https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=" self.headers = {"user-agent": GetUserAgentCS().get_user()} self.start = input("Please input the music name:") ids = self.get_id() self.params = self.get_params(id=ids) self.mp3_name = self.start + ".mp3" def my_request(self, url, model="get", params=None): """ 继承父类的一个方法 """ return super().my_request(url, model, params) def get_params(self, id): """给出id 返回加密参数""" d = {"ids": str([id]), "level": "standard", "encodeType": "aac", "csrf_token": ""} params = GetParams().get_encrypt_params(str(d)) return params def get_id(self): """ 根据歌曲名称获取id """ start = self.start d = { "hlpretag": "<span class=\"s-fc7\">", "hlposttag": "</span>", "s": str(start), "type": "1", "offset": "0", "total": "true", "limit": "30", "csrf_token": "" } params = GetParams().get_encrypt_params(str(d)) return self.my_request(self.GetIdUrl, model="post", params=params)["result"]["songs"][0].get("id") def spider(self): """ 这是爬取一首歌的方式, 你只需要输入歌曲名称就可以 会自动调用其他类实现参数加密 id获取等 """ import os r = requests.post(self.params_url, params=self.params) if r.status_code == 200: print(r.json()) mp3 = r.json().get("data")[0].get("url") print("music link is ", mp3) rmp3 = requests.get(mp3, headers=self.headers) if rmp3.status_code == 200: with open(self.mp3_name, 'wb') as ;fw: ;fw.write(rmp3.content) print("Down Successful! ", "file path is ", os.path.dirname(__file__)) # 如果要运行此程序 请打开下面的注释# a = DownOneMp3()# a.spider()
""" 如果你仅仅只是想下载一首歌 跳转到DownOneMp3模块启动模块运行 如果你想多首歌发送某人邮箱 跳转到DownMp3模块启动模块运行 """
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