Getting video and VoiceNote about whatsapp-web-reveng HOT 4 CLOSED

More information is required to debug this issue, as I cannot reproduce it personally. It's always possible that the message decoder routine produces an object that has byte strings in it that aren't valid UTF-8. Generally, I tried to take care of that (because strings like this should be base64 encoded), but still.

First, I see that you're on Mac OS, but that shouldn't be an issue. Can you just comment out the line in whatsapp-web-backend.py causing the error, as it's just a log message anyway? Additionally, did you add the .encode('ascii') part behind it by yourself? At least it isn't part of the current source code.

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Yes I added .encode('ascii'), the reason I got that exception was that I try to print out the object so I commented out printing the object, then I managed to get the data of the video but it turns out to be a thumbnail instead of the video itself in base64

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You're right, this is just like the thumbnail image in #30.

The clientUrl property refers to an encrypted version of the image/video on the WhatsApp servers and mediaKey is probably quite important in the decryption process. The fileHash property's purpose is obvious then.

I have not yet investigated how to actually decrypt such a media file. Maybe the mediaKey needs to be combined with the general encKey and maybe AES is involved as well. Still, I don't know about this yet. Would you like to take a look at it and, when you've found the routine details, even add them to the readme documentation? I'd really appreciate that :)

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Definitely will do 👍

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