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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use crate::errors;
use crate::statecallback::StateCallback;
use crate::transport::device_selector::{
DeviceBuildParameters, DeviceSelector, DeviceSelectorEvent,
};
use crate::transport::platform::monitor::Monitor;
use runloop::RunLoop;
use std::sync::mpsc::Sender;
pub struct Transaction {
// Handle to the thread loop.
thread: RunLoop,
device_selector: DeviceSelector,
}
impl Transaction {
pub fn new<F, T>(
timeout: u64,
callback: StateCallback<crate::Result<T>>,
status: Sender<crate::StatusUpdate>,
new_device_cb: F,
) -> crate::Result<Self>
where
F: Fn(
DeviceBuildParameters,
Sender<DeviceSelectorEvent>,
Sender<crate::StatusUpdate>,
&dyn Fn() -> bool,
) + Sync
+ Send
+ 'static,
T: 'static,
{
let device_selector = DeviceSelector::run();
let selector_sender = device_selector.clone_sender();
let thread = RunLoop::new_with_timeout(
move |alive| {
// Create a new device monitor.
let mut monitor = Monitor::new(new_device_cb, selector_sender, status);
// Start polling for new devices.
try_or!(monitor.run(alive), |_| callback
.call(Err(errors::AuthenticatorError::Platform)));
// Send an error, if the callback wasn't called already.
callback.call(Err(errors::AuthenticatorError::U2FToken(
errors::U2FTokenError::NotAllowed,
)));
},
timeout,
)
.map_err(|_| errors::AuthenticatorError::Platform)?;
Ok(Self {
thread,
device_selector,
})
}
pub fn cancel(&mut self) {
info!("Transaction was cancelled.");
self.device_selector.stop();
self.thread.cancel();
}
}
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