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// checkpw - Check passwords against pwnedpasswords.com
// Copyright (C) 2018 Harald Eilertsen <haraldei@anduin.net>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
extern crate futures;
extern crate hyper;
extern crate hyper_tls;
extern crate ring;
extern crate tokio_core;
use futures::{Future, Stream};
use hyper::Client;
use hyper_tls::HttpsConnector;
use ring::digest;
use std::env;
use tokio_core::reactor::Core;
//
// Convert a slice of bytes into a string of hex values
//
fn to_hex(data: &[u8]) -> String {
data.into_iter()
.map(|b| format!("{:02X}", b))
.collect()
}
#[test]
fn test_to_hex() {
let input = [0x01, 0x00, 0xff, 0xaa, 0x10, 0x07];
assert_eq!(to_hex(&input), "0100FFAA1007");
}
///
/// Split the digest into the range and rest parts for k-anonymity
///
fn to_k_anon(d: digest::Digest) -> (String, String) {
let mut hash = to_hex(d.as_ref());
let rest = hash.split_off(5);
(hash, rest)
}
#[test]
fn test_k_anon() {
let input = digest::digest(&digest::SHA1, "Passw0rd".as_bytes());
let res = to_k_anon(input);
assert_eq!(res, (String::from("EBFC7"), String::from("910077770C8340F63CD2DCA2AC1F120444F")));
}
struct Password {
pw: String,
pub range: String,
pub rest: String,
}
impl Password {
pub fn new(pw: &str) -> Password {
let (range, rest) = to_k_anon(digest::digest(&digest::SHA1, &pw.as_bytes()));
Password {
pw: String::from(pw),
range: range,
rest: rest,
}
}
}
#[test]
fn test_creating_new_password() {
let pw = Password::new("Passw0rd");
assert_eq!(&pw.range, "EBFC7");
assert_eq!(&pw.rest, "910077770C8340F63CD2DCA2AC1F120444F");
}
fn check(pw: Password) -> Result<(), Box<::std::error::Error>> {
let mut core = Core::new()?;
let client = Client::configure()
.connector(HttpsConnector::new(4, &core.handle())?)
.build(&core.handle());
let uri = format!("https://api.pwnedpasswords.com/range/{}", pw.range).parse()?;
let req = client.get(uri).and_then(|res| {
res.body().concat2().and_then(move |body| {
let hashes = std::str::from_utf8(&body)?;
if let Some(pos) = hashes.find(&pw.rest) {
println!("Password is PWNED!");
if let Some(res) = hashes[pos..].lines().take(1).collect::<Vec<_>>().pop() {
let count = res.split(':').skip(1).collect::<Vec<_>>().pop().unwrap();
println!("The password {} was found in {} breaches", pw.pw, count);
}
}
Ok(())
})
});
core.run(req)?;
Ok(())
}
fn print_usage() {
println!("Usage: checkpw <pw>...");
}
fn main() {
let (args, passwords) : (Vec<String>, Vec<String>) = env::args()
.skip(1)
.partition(|arg| arg.starts_with('-'));
if args.is_empty() && passwords.is_empty() {
print_usage();
return;
}
for pw in passwords {
check(Password::new(&pw)).unwrap();
}
}
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