Formation of the Vkontakte video code

Question

PHP

It is necessary to automatically generate the iframe code from the video link:

vkontakte.ru/video-15228195_139953350 with the video vkontakte:

<iframe src="http://vkontakte.ru/video_ext.php?oid=-15228195&id=139953350&hash=9fbf1b10f49ace31" width="607" height="360" frameborder="0"></iframe>

It is not clear how the hash parameter is formed, api vkontakte.ru/developers.php?o=-1&p=video.get also does not provide the player code.

Answer 1

Most likely a hash with a salt, you probably will never know how it is calculated.
I don’t quite understand how and why this is, maybe because it’s 5 am ...
You can look in the direction of browser extensions vk downloader for FF, MusigSig for chrome, etc.
See how they tear out a direct link to a video file and insert it into your player;)

Answer 2

I don't think it can be recognized. This hash, as I understand it, is needed so that the video recording embedded on a third-party site is played, even if it is closed by privacy, and if you could get this hash, then you could safely watch hidden videos (provided that there is a link to her).

Answer 3

Hash is needed for the video section so that video hosting is not made from VKontakte, that is, the hash is formed for different IP addresses so that it is not common to download the same entry via a direct link, it is different for everyone. I think I explained clearly.