308 строки
12 KiB
Rust
308 строки
12 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use authenticator::{
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authenticatorservice::{AuthenticatorService, RegisterArgs, SignArgs},
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crypto::COSEAlgorithm,
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ctap2::commands::StatusCode,
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ctap2::server::{
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PublicKeyCredentialDescriptor, PublicKeyCredentialParameters,
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PublicKeyCredentialUserEntity, RelyingParty, ResidentKeyRequirement, Transport,
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UserVerificationRequirement,
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},
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errors::{AuthenticatorError, CommandError, HIDError, UnsupportedOption},
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statecallback::StateCallback,
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Pin, StatusPinUv, StatusUpdate,
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};
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use getopts::Options;
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use sha2::{Digest, Sha256};
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use std::sync::mpsc::{channel, RecvError};
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use std::{env, thread};
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fn print_usage(program: &str, opts: Options) {
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let brief = format!("Usage: {program} [options]");
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print!("{}", opts.usage(&brief));
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}
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fn main() {
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env_logger::init();
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let args: Vec<String> = env::args().collect();
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let program = args[0].clone();
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let mut opts = Options::new();
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opts.optflag("h", "help", "print this help menu").optopt(
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"t",
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"timeout",
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"timeout in seconds",
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"SEC",
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);
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opts.optflag("h", "help", "print this help menu");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(f) => panic!("{}", f.to_string()),
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};
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if matches.opt_present("help") {
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print_usage(&program, opts);
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return;
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}
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let mut manager =
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AuthenticatorService::new().expect("The auth service should initialize safely");
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manager.add_u2f_usb_hid_platform_transports();
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let timeout_ms = match matches.opt_get_default::<u64>("timeout", 25) {
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Ok(timeout_s) => {
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println!("Using {}s as the timeout", &timeout_s);
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timeout_s * 1_000
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}
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Err(e) => {
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println!("{e}");
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print_usage(&program, opts);
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return;
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}
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};
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println!("Asking a security key to register now...");
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let challenge_str = format!(
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"{}{}",
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r#"{"challenge": "1vQ9mxionq0ngCnjD-wTsv1zUSrGRtFqG2xP09SbZ70","#,
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r#" "version": "U2F_V2", "appId": "http://example.com"}"#
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);
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let chall_bytes = Sha256::digest(challenge_str.as_bytes()).into();
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let (status_tx, status_rx) = channel::<StatusUpdate>();
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thread::spawn(move || loop {
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match status_rx.recv() {
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Ok(StatusUpdate::InteractiveManagement(..)) => {
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panic!("STATUS: This can't happen when doing non-interactive usage");
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}
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Ok(StatusUpdate::SelectDeviceNotice) => {
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println!("STATUS: Please select a device by touching one of them.");
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}
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Ok(StatusUpdate::PresenceRequired) => {
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println!("STATUS: waiting for user presence");
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinRequired(sender))) => {
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let raw_pin =
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rpassword::prompt_password_stderr("Enter PIN: ").expect("Failed to read PIN");
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sender.send(Pin::new(&raw_pin)).expect("Failed to send PIN");
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::InvalidPin(sender, attempts))) => {
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println!(
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"Wrong PIN! {}",
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attempts.map_or("Try again.".to_string(), |a| format!(
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"You have {a} attempts left."
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))
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);
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let raw_pin =
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rpassword::prompt_password_stderr("Enter PIN: ").expect("Failed to read PIN");
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sender.send(Pin::new(&raw_pin)).expect("Failed to send PIN");
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinAuthBlocked)) => {
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panic!("Too many failed attempts in one row. Your device has been temporarily blocked. Please unplug it and plug in again.")
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::PinBlocked)) => {
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panic!("Too many failed attempts. Your device has been blocked. Reset it.")
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::InvalidUv(attempts))) => {
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println!(
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"Wrong UV! {}",
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attempts.map_or("Try again.".to_string(), |a| format!(
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"You have {a} attempts left."
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))
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);
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continue;
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}
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Ok(StatusUpdate::PinUvError(StatusPinUv::UvBlocked)) => {
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println!("Too many failed UV-attempts.");
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continue;
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}
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Ok(StatusUpdate::PinUvError(e)) => {
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panic!("Unexpected error: {:?}", e)
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}
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Ok(StatusUpdate::SelectResultNotice(_, _)) => {
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panic!("Unexpected select device notice")
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}
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Err(RecvError) => {
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println!("STATUS: end");
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return;
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}
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}
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});
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let user = PublicKeyCredentialUserEntity {
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id: "user_id".as_bytes().to_vec(),
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name: Some("A. User".to_string()),
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display_name: None,
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};
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let origin = "https://example.com".to_string();
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let mut ctap_args = RegisterArgs {
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client_data_hash: chall_bytes,
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relying_party: RelyingParty {
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id: "example.com".to_string(),
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name: None,
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},
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origin: origin.clone(),
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user,
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pub_cred_params: vec![
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PublicKeyCredentialParameters {
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alg: COSEAlgorithm::ES256,
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},
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PublicKeyCredentialParameters {
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alg: COSEAlgorithm::RS256,
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},
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],
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exclude_list: vec![],
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user_verification_req: UserVerificationRequirement::Preferred,
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resident_key_req: ResidentKeyRequirement::Discouraged,
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extensions: Default::default(),
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pin: None,
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use_ctap1_fallback: false,
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};
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let mut registered_key_handle = None;
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loop {
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let (register_tx, register_rx) = channel();
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let callback = StateCallback::new(Box::new(move |rv| {
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register_tx.send(rv).unwrap();
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}));
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if let Err(e) = manager.register(timeout_ms, ctap_args.clone(), status_tx.clone(), callback)
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{
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panic!("Couldn't register: {:?}", e);
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};
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let register_result = register_rx
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.recv()
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.expect("Problem receiving, unable to continue");
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match register_result {
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Ok(a) => {
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println!("Ok!");
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println!("Registering again with the key_handle we just got back. This should result in a 'already registered' error.");
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let key_handle = a
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.att_obj
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.auth_data
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.credential_data
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.unwrap()
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.credential_id
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.clone();
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let pub_key = PublicKeyCredentialDescriptor {
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id: key_handle,
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transports: vec![Transport::USB],
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};
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ctap_args.exclude_list = vec![pub_key.clone()];
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registered_key_handle = Some(pub_key);
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continue;
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}
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Err(AuthenticatorError::CredentialExcluded) => {
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println!("Got an 'already registered' error, as expected.");
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if ctap_args.exclude_list.len() > 1 {
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println!("Quitting.");
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break;
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}
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println!("Extending the list to contain more invalid handles.");
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let registered_handle = ctap_args.exclude_list[0].clone();
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ctap_args.exclude_list = vec![];
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for ii in 0..10 {
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ctap_args.exclude_list.push(PublicKeyCredentialDescriptor {
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id: vec![ii; 50],
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transports: vec![Transport::USB],
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});
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}
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ctap_args.exclude_list.push(registered_handle);
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continue;
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}
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Err(e) => panic!("Registration failed: {:?}", e),
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};
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}
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// Signing
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let mut ctap_args = SignArgs {
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client_data_hash: chall_bytes,
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origin,
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relying_party_id: "example.com".to_string(),
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allow_list: vec![],
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extensions: Default::default(),
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pin: None,
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use_ctap1_fallback: false,
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user_verification_req: UserVerificationRequirement::Preferred,
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user_presence_req: true,
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};
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let mut no_cred_errors_done = false;
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loop {
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let (sign_tx, sign_rx) = channel();
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let callback = StateCallback::new(Box::new(move |rv| {
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sign_tx.send(rv).unwrap();
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}));
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if let Err(e) = manager.sign(timeout_ms, ctap_args.clone(), status_tx.clone(), callback) {
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panic!("Couldn't sign: {:?}", e);
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};
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let sign_result = sign_rx
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.recv()
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.expect("Problem receiving, unable to continue");
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match sign_result {
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Ok(_) => {
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if !no_cred_errors_done {
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panic!("Should have errored out with NoCredentials, but it succeeded.");
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}
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println!("Successfully signed!");
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if ctap_args.allow_list.len() > 1 {
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println!("Quitting.");
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break;
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}
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println!("Signing again with a long allow_list that needs pre-flighting.");
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let registered_handle = registered_key_handle.as_ref().unwrap().clone();
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ctap_args.allow_list = vec![];
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for ii in 0..10 {
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ctap_args.allow_list.push(PublicKeyCredentialDescriptor {
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id: vec![ii; 50],
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transports: vec![Transport::USB],
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});
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}
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ctap_args.allow_list.push(registered_handle);
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continue;
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}
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Err(AuthenticatorError::HIDError(HIDError::Command(CommandError::StatusCode(
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StatusCode::NoCredentials,
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None,
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))))
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| Err(AuthenticatorError::UnsupportedOption(UnsupportedOption::EmptyAllowList)) => {
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if ctap_args.allow_list.is_empty() {
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// Try again with a list of false creds. We should end up here again.
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println!(
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"Got an 'no credentials' error, as expected with an empty allow-list."
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);
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println!("Extending the list to contain only fake handles.");
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ctap_args.allow_list = vec![];
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for ii in 0..10 {
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ctap_args.allow_list.push(PublicKeyCredentialDescriptor {
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id: vec![ii; 50],
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transports: vec![Transport::USB],
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});
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}
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} else {
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println!(
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"Got an 'no credentials' error, as expected with an all-fake allow-list."
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);
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println!("Extending the list to contain one valid handle.");
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let registered_handle = registered_key_handle.as_ref().unwrap().clone();
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ctap_args.allow_list = vec![registered_handle];
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no_cred_errors_done = true;
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}
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continue;
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}
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Err(e) => panic!("Registration failed: {:?}", e),
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};
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}
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println!("Done")
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}
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