腾讯视频白嫖（2020/12/16已失效）

2021.6.18补充：未失效，但需要一些特殊的方法绕过cdn的限制

本脚本已于2020/12/16失效，大概讲讲相应的思路吧。

1.腾讯视频存在部分付费资源，例如《云首发相声大会》等，需要付费才能完整观看。
我们简单看一下这种付费的m3u8链接和普通的m3u8文件有何不同吧。

https://*.v.smtcdns.com/vipts.tc.qq.com/.../055_z00341icz95.321004.ts.m3u8?ver=4
 
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:15
#EXT-X-PLAYLIST-TYPE:VOD
#EXTINF:12.000,
00_z00341icz95.321004.1.ts?index=0&start=0&end=12000&brs=0&bre=2900275&ver=4
#EXTINF:12.280,
01_z00341icz95.321004.1.ts?index=1&start=12000&end=24280&brs=2900276&bre=6104547&ver=4
#EXTINF:11.560,
02_z00341icz95.321004.1.ts?index=2&start=24280&end=35840&brs=6104548&bre=9642143&ver=4
#EXTINF:12.360,
03_z00341icz95.321004.1.ts?index=3&start=35840&end=48200&brs=9642144&bre=16151831&ver=4
#EXTINF:9.520,
04_z00341icz95.321004.1.ts?index=4&start=48200&end=57720&brs=16151832&bre=19113019&ver=4
#EXT-X-ENDLIST

可以看到里面只有四个分片。

https://*.v.smtcdns.com/vipts.tc.qq.com/.../o0035306o0e.321004.ts.m3u8?ver=4
 
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:14
#EXT-X-PLAYLIST-TYPE:VOD
#EXTINF:6.875,
00_o0035306o0e.321004.1.ts?index=0&start=0&end=6875&brs=0&bre=1163343&ver=4
#EXTINF:12.500,
01_o0035306o0e.321004.1.ts?index=1&start=6875&end=19375&brs=1163344&bre=3374787&ver=4
#EXTINF:12.500,
02_o0035306o0e.321004.1.ts?index=2&start=19375&end=31875&brs=3374788&bre=5565739&ver=4
#EXTINF:12.500,
03_o0035306o0e.321004.1.ts?index=3&start=31875&end=44375&brs=5565740&bre=11094067&ver=4
#EXTINF:12.500,
04_o0035306o0e.321004.1.ts?index=4&start=44375&end=56875&brs=11094068&bre=13035731&ver=4
#EXTINF:12.500,
05_o0035306o0e.321004.1.ts?index=5&start=56875&end=69375&brs=13035732&bre=16923007&ver=4
...
#EXTINF:5.548,
0537_o0035306o0e.321004.17.ts?index=537&start=5649833&end=5655381&brs=131368008&bre=131484003&ver=4
#EXT-X-ENDLIST

2.大概几年前的时候，腾讯视频在网页端提供的还是5-6分钟一段的MP4片段，后来虽然开始做分片，但完整片段的url依然是可以使用的，简单来说就可以把m3u8文件简化为形如https://*.v.smtcdns.com/vipts.tc.qq.com/…/vid.321004.*.ts?ver=4的片段。
对于付费资源来说，我们可能只能获取到第一个分片的地址，如https://*.v.smtcdns.com/vipts.tc.qq.com/…/vid.321004.1.ts?ver=4，但把分片的index手动替换后会发现，后续的分片也是可以下载的，例如https://*.v.smtcdns.com/vipts.tc.qq.com/…/vid.321004.4.ts?ver=4

3.想法大概是，腾讯（以前）没有做url是普通链接还是预览链接的鉴定，所以只需要拼出分片就可以下载。所以写了如下的脚本来将预览链接变为可下载的链接。

4.但是2020/12/16发现，腾讯做了相关的鉴权，前几个分片可以自由下载，但之后的分片被限速了，根本不可能完整下载完整个视频。

5.因为本脚本已经失效，所以将相关的思路整理到这里，感兴趣的也可以试试看有没有办法解除速度限制。over:）

```
import requests
```
```
import os
```
```
from urllib.parse import urljoin
```
```
 
```
```
cfg ={
```

    "corePath": r"D:\Tool\N_m3u8DL-CLI\N_m3u8DL-CLI_v2.5.7.exe",

```
    "workDir": r"D:\Tool\N_m3u8DL-CLI"
```
```
}
```
```
 
```
```
 
```
```
def download(name):
```
```
    print("Ready to download...")
```

    os.system(cfg["corePath"]+" \"" + name + ".m3u8\" --workDir \"" + cfg["workDir"] + "\" --saveName \"" + name + "\" --minThreads \"30\" --enableDelAfterDone")

```
    print("Download Complete!")
```
```
 
```
```
 
```
```
def createdata(url):
```
```
    headers = {
```

        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36",

```
        "Cookie": "",
```
```
        "Range": "bytes=0-10"
```
```
    }
```

    data = "#EXTM3U\n#EXT-X-VERSION:3\n#EXT-X-TARGETDURATION:360\n"

```
    index = 1
```
```
    while True:
```

        clipurl = url.replace("*", str(index))

        print("Trying to get clip %d..." % index, end="")

```
        i = 1
```
```
        while i <= 3:
```
```
            try:
```

                r = requests.get(clipurl, headers=headers, timeout=2)

                if r.status_code == 206:

```
                    print("OK")
```

                    data += "#EXTINF:300\n%s\n" % clipurl

```
                    i = 4
```

                elif r.status_code == 404:

                    print("Not Exist...Leaving...")

```
                    i = 4
```
```
                else:
```

                    print("Unexpected Error...Leaving...")

```
                    i = 4
```

            except requests.exceptions.RequestException:

```
                i += 1
```
```
        if r.status_code != 206:
```
```
            break
```
```
        index += 1
```
```
    data += "#EXT-X-ENDLIST"
```
```
    return data
```
```
 
```
```
 
```
```
def createfile(data, name):
```

    print("Starting writing m3u8 file...")

    with open(name + ".m3u8", "w+", encoding="utf8") as file:

```
        file.write(data)
```

    print("Writing to m3u8 file...Finished")

```
 
```
```
 
```
```
def standardclip(url):
```

    relapath = url.split("/")[-1].split("_")[-1].replace(".m3u8", "")

    index = max(relapath.find("321004"), relapath.find("320181"), relapath.find("326002"), relapath.find("322016"), relapath.find("322014"))

    relapath = relapath[:index+6] + ".*" + relapath[index+6:]

```
    return urljoin(url, relapath)
```
```
 
```
```
 
```
```
def main():
```

    print("This tool is using to download video from TencentVideo for free...")

    m3url = input("Please input the m3u8 url:")

    taskname = input("Please input the task name:")

```
    clipurl = standardclip(m3url)
```
```
    data = createdata(clipurl)
```
```
    createfile(data, taskname)
```
```
    download(taskname)
```
```
 
```
```
 
```
```
if __name__ == '__main__':
```
```
    main()
```

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