forked from bot/tmp2
34 lines
1.2 KiB
Rust
34 lines
1.2 KiB
Rust
/*
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* mCaptcha - A proof of work based DoS protection system
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* Copyright © 2021 Aravinth Manivannan <realravinth@batsense.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// utility function to get a randomly generated string
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// of size len
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pub fn get_random(len: usize) -> String {
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use std::iter;
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use rand::{distributions::Alphanumeric, rngs::ThreadRng, thread_rng, Rng};
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let mut rng: ThreadRng = thread_rng();
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iter::repeat(())
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.map(|()| rng.sample(Alphanumeric))
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.map(char::from)
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.take(len)
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.collect::<String>()
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}
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