Images from restricted channels

[balki97]

As I've been using telemirror for a while now and came to test all of its features. I can confirm that it pulls content from restricted channels but just not media (images,videos). I just want to confirm if this is a problem from my side or its something that cannot be achieved ?

[khoben]

As I've been using telemirror for a while now and came to test all of its features. I can confirm that it pulls content from restricted channels but just not media (images,videos). I just want to confirm if this is a problem from my side or its something that cannot be achieved ?

You can only retrieve and forward content from protected channels by re-saving it. The easiest ones are text and images. Text is simply copied and images are downloaded as an array of bytes and sent. The other types of media require a bit more processing logic.
I have now completely removed option to forward from such channels, but this is easily fixed by removing checks for the noforwards chat flag and implementing re-saving.

For forwarding text and pictures, you can do the following:

1. Check that chat has the noforwards flag
2. If the incomin_message.media is a picture, download it as an array of bytes (or even to storage) and re-send it:

downloaded_bytes = await self.download_media(incoming_message, file=bytes)
await self.send_message(
     entity=outgoing_chat,
     message=incoming_message.message,
     file=downloaded_bytes,
     formatting_entities=incoming_message.entities,
     reply_to=reply_to_messages.get(outgoing_chat)
)

Such a scheme worked quite well. To handle more media types, you should use storage and check if it makes sense to re-upload large files.