61 lines
1.9 KiB
Rust
61 lines
1.9 KiB
Rust
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use arrayvec::{ArrayString, ArrayVec};
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use rand::{rngs::OsRng, seq::SliceRandom};
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use std::{iter, str::from_utf8_unchecked};
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use teloxide::{adaptors::Throttle, prelude::*, types::ParseMode};
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use tokio::task::JoinSet;
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use crate::handlers::markups::deletion_markup;
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const CHARS: &'static [u8] = br##"!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_abcdefghijklmnopqrstuvwxyz{|}~"##;
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#[inline]
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fn check_generated_password(password: &[u8]) -> bool {
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let mut flags: u8 = 0;
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for &byte in password {
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match byte {
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b'a'..=b'z' => flags |= 0b1,
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b'A'..=b'Z' => flags |= 0b10,
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b'0'..=b'9' => flags |= 0b100,
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b'!'..=b'/' | b':'..=b'@' | b'['..=b'`' | b'{'..=b'~' => flags |= 0b1000,
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_ => (),
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}
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if flags == 0b1111 {
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return true;
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}
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}
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false
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}
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fn generete_password() -> ArrayString<34> {
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loop {
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let password: ArrayVec<u8, 32> = iter::repeat_with(|| *CHARS.choose(&mut OsRng).unwrap())
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.take(32)
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.collect();
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if check_generated_password(&password) {
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let mut string = ArrayString::<34>::new_const();
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string.push('`');
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unsafe { string.push_str(from_utf8_unchecked(&password)) };
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string.push('`');
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return string;
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}
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}
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}
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pub async fn gen_password(bot: Throttle<Bot>, msg: Message) -> crate::Result<()> {
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let mut message = ArrayString::<{ 11 + 35 * 10 }>::new();
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message.push_str("Passwords:\n");
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let mut join_set = JoinSet::new();
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for _ in 0..10 {
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join_set.spawn_blocking(|| generete_password());
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}
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while let Some(password) = join_set.join_next().await {
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message.push_str(password?.as_str());
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message.push('\n')
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}
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bot.send_message(msg.chat.id, message.as_str())
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.parse_mode(ParseMode::MarkdownV2)
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.reply_markup(deletion_markup())
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.await?;
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Ok(())
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}
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