How is this project related to telegram ?

[erfanmola]

I was just wondering how is this project related to telegram, how is it gonna obtain Telegram-Related-Data if we run it on our own server, and if it's gonna obtain data from telegram's own servers, then why not just use the telegram's own Bot API ?

And is it safe to use this ? I mean is it guaranteed that user's data would be safe ? Or it will be accessible as raw data on server-side ?

[levlam]

This is exactly the same server as run at https://api.telegram.org. All other answers can be derived from that.

[dashezup]

Does bots which uses its own bot API server makes user risk of getting their IP being logged? (are there cases that user client transfer data directly from the bot api server?)
Assume when I download a file from such bot, are there chance that I download the file directly from the unofficial telegram bot API server?
If it does then I guess telegram should flag such bot to notice user the risk of using such bots.

[levlam]

Users interact with Telegram API. Bots interact with Telegram API. Users don't interact with bots directly.

[MasterGroosha]

@dashezup

Assume when I download a file from such bot, are there chance that I download the file directly from the unofficial telegram bot API server?

Excuse me, but is there any difference? If the bot sends you (a Telegram user) a file, does it matter whether this bot runs the official API endpoint or its own? I guess it doesn't matter.

[dashezup]

@MasterGroosha
if the server send the user a dedicated file which has an unique ID and the user download the file directly from the unofficial server, the IP which get the file is very likely the user's actual IP (unless the user was using proxy/VPN).
It's important that when we were using official telegram client, we only connect to official telegram server (except for P2P calls or socks/mtproto proxy) to avoid IP leak.

But since levlan has point out that users don't interact with bots directly, it probably won't be this case.

[levlam]

You can find a nice diagram in #1 (comment). The only difference between using a local Bot API server and the api.telegram.org server is a location of the provided in this repository TDLib-based Bot API server.