[TelegramBridge] Getting posts beyond last page

[n-kam]

Fixes https://github.com/RSS-Bridge/rss-bridge/issues/2084.

Bridge can now fetch previous posts beyond ones displayed on default webpage. This is pretty much a necessity for news aggregator channels with dozens of posts/day.

As the number of posts on a telegram webpage is not constant (I was getting anything from 4 to 20 posts for different channels), the bridge now fetches webpages with "...?before=..." param until post count matches requested number of posts OR the number of fetched pages reaches the hard-limit OR reaching the first post in the channel.

Although I tested the code manually on different channels, I'm very much an amateur programmer and moreover never wrote in PHP before. So sanity-checks would be nice.

[github-actions[bot]]

Pull request artifacts

Bridge	Context	Status
Telegram	1 untitled (current)	✔️
Telegram	1 untitled (pr)	✔️

last change: Monday 2024-01-08 12:43:03

[dvikan]

@VerifiedJoseph

[dvikan]

the bridge is improved but the code is confusing to me.

[dvikan]

linter upgrade disallows sizeof function.

i agree with @em92 this leads to extra requests to telegram servers. might be problematic