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WeChatChannel下载器

下载微信视频号里面的指定视频

原理

直接下载的MP4文件会将前面20000h字节和固定的key做异或
如何获得视频URL就靠抓包了,需要屏蔽掉QUIC协议(UDP/443),然后抓80端口
URL例子

http://wxapp.tc.qq.com/251/20302/stodownload?encfilekey=G83YYE2iciaib491UK8yGibLXDKSgvVgk8CgnTwJLwVPt0Micv8OPgfPIic08nGRQA9npw9ZFgL8mCHWehQ8CZRW3Out2PA93mmz5ZMMX3zk7xAbBnH3iaDdPRWQ0HpEnOJxibHabxmpzwa6VGzHDEDQ5Hjacaw4S0c3icPae&bizid=1023&dotrans=934&hy=SZ&idx=1&m=219abab90465b969dbf235ffb5df6a41&token=AxricY7RBHdV3hUtSjd0bFD5NUmoTX72oZne2AHC9eltDhxEOKv4w7HqiceITynbJtLB2OrXjtpV0

Compile and Run

make && ./main

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微信视频号下载器

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  • C++ 60.9%
  • C 37.8%
  • Makefile 1.3%