75 lines
2.2 KiB
Rust
75 lines
2.2 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Ethereum 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 General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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//! An list of requests to be confirmed or signed by an external approver/signer.
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use std::sync::Arc;
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use std::ops::Deref;
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mod oneshot;
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mod signing_queue;
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pub use self::signing_queue::{SigningQueue, ConfirmationsQueue, ConfirmationReceiver, ConfirmationResult};
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#[cfg(test)]
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pub use self::signing_queue::QueueEvent;
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/// Manages communication with Signer crate
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pub struct SignerService {
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is_enabled: bool,
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queue: Arc<ConfirmationsQueue>,
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generate_new_token: Box<Fn() -> Result<String, String> + Send + Sync + 'static>,
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}
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impl SignerService {
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/// Creates new Signer Service given function to generate new tokens.
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pub fn new<F>(new_token: F, is_enabled: bool) -> Self
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where F: Fn() -> Result<String, String> + Send + Sync + 'static {
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SignerService {
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queue: Arc::new(ConfirmationsQueue::default()),
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generate_new_token: Box::new(new_token),
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is_enabled,
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}
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}
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/// Generates new signer authorization token.
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pub fn generate_token(&self) -> Result<String, String> {
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(self.generate_new_token)()
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}
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/// Returns a reference to `ConfirmationsQueue`
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pub fn queue(&self) -> Arc<ConfirmationsQueue> {
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self.queue.clone()
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}
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/// Returns true if Signer is enabled.
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pub fn is_enabled(&self) -> bool {
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self.is_enabled
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}
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#[cfg(test)]
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/// Creates new Signer Service for tests.
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pub fn new_test(is_enabled: bool) -> Self {
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SignerService::new(|| Ok("new_token".into()), is_enabled)
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}
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}
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impl Deref for SignerService {
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type Target = ConfirmationsQueue;
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fn deref(&self) -> &Self::Target {
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&self.queue
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}
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}
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