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boomstream.com video downloader

The script downloads videos from boomstream.com streaming service.

Encryption algorithm description

The service stores video chunks encrypted using HLS AES-128 algorithm. In order to decrypt them AES initialization vector and 128-bit key are required. Initialization vector is encrypted in the first part of #EXT-X-MEDIA-READY variable which is contained in m3u8 playlist using a simple XOR operation. The key is supposed to be recevied via HTTP using a URL that starts with https://play.boomstream.com/api/process/ and contains a long hex key that can be computed using session token and the second part of #EXT-X-MEDIA-READY.

Usage

Command line arguments:

--entity (required) - value can be found in URL like https://play.boomstream.com/TiAR7aDs

--pin - required only for content protected with a pin code

--resolution - video resolution. If not specified, the video with a highest one will be downloaded

--openssl-path - location of the openssl binary, used if openssl not available in the environment

--ffmpeg-path - location of the ffmpeg binary, used if ffmpeg not available in the environment

--ffprobe-path - location of the ffprobe binary, used if ffprobe not available in the environment

Excample:

--entity TiAR7aDs --pin 123-456-789 --resolution "640x360" --ffmpeg-path "C:\ffmpeg\bin\ffmpeg.exe" --ffprobe-path "C:\ffmpeg\bin\ffprobe.exe"

Requirements

  • openssl
  • python-requests
  • lxml
  • ffmpeg (for enconding ts -> mp4)

As the script was written and tested in Linux (specifically Ubuntu 18.04.4 LTS) it uses GNU/Linux