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86 lines
2.2 KiB
Rust
86 lines
2.2 KiB
Rust
use docopt::Docopt;
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use log::debug;
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use rand::rngs::OsRng;
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use rand::seq::IteratorRandom;
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use rand::seq::SliceRandom;
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use serde::Deserialize;
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use std::iter::FromIterator;
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static USAGE: &'static str = "
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foil
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Usage:
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foil set [--db=<db>]
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foil get [--db=<db>]
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foil list [--db=<db>]
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foil generate <spec>
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foil (-h | --help)
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Options:
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--db=<db> The path to the sqlite database [default: db.sqlite3].
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-h --help Show this screen.
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--version Show version.
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";
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#[derive(Debug, Deserialize)]
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struct Args {
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cmd_set: bool,
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cmd_get: bool,
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cmd_list: bool,
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cmd_generate: bool,
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flag_db: Option<String>,
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arg_spec: Option<String>,
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}
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fn generate(spec: &str) {
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let (len, rest) = {
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let mut separated = spec.splitn(2, ",");
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let len = separated.next().unwrap();
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let rest = separated.next().unwrap();
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(len, rest)
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};
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let mut rnd = OsRng::new().unwrap();
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let mut password_vec: Vec<char> = rest
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.chars()
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.cycle()
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.map(|c| match c {
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'a' => "abcdefghijklmnopqrstuvwxyz"
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.chars()
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.choose(&mut rnd)
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.expect("Could not get random element"),
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'A' => "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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.chars()
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.choose(&mut rnd)
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.expect("Could not get random element"),
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'1' => "1234567890"
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.chars()
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.choose(&mut rnd)
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.expect("Could not get random element"),
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'.' => ".,/?-=#%^"
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.chars()
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.choose(&mut rnd)
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.expect("Could not get random element"),
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_ => panic!("Unknown character spec: {}", c),
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})
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.take(len.parse().unwrap())
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.collect();
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password_vec.shuffle(&mut rnd);
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let shuffled: String = String::from_iter(password_vec.into_iter());
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println!("{}", shuffled);
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}
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fn main() {
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pretty_env_logger::init();
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let args: Args = Docopt::new(USAGE)
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.and_then(|dopt| dopt.deserialize())
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.unwrap_or_else(|e| e.exit());
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debug!("{:?}", args);
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if args.cmd_generate {
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generate(&args.arg_spec.unwrap());
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return;
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}
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}
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