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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright 2022. The Tari Project | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| // following conditions are met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| // disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the | ||
| // following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| use std::io; | ||
| use std::sync::Arc; | ||
| use log::info; | ||
| use multiaddr::Multiaddr; | ||
| use tokio::sync::RwLock; | ||
| use crate::tor::HiddenServiceController; | ||
| use crate::transports::{SocksTransport, TcpTransport, Transport}; | ||
| use crate::transports::tcp::TcpInbound; | ||
|
|
||
| const LOG_TARGET: &str = "comms::transports::hidden_service_transport"; | ||
|
|
||
| #[derive(thiserror::Error, Debug)] | ||
| pub enum HiddenServiceTransportError { | ||
| #[error("Tor hidden service transport error: `{0}`")] | ||
| HiddenServiceControllerError(#[from] crate::tor::HiddenServiceControllerError), | ||
| #[error("Tor hidden service socks error: `{0}`")] | ||
| SocksTransportError(#[from] io::Error), | ||
|
|
||
| } | ||
|
|
||
| struct HiddenServiceTransportInner { | ||
| socks_transport: Option<SocksTransport>, | ||
| hidden_service_ctl: HiddenServiceController | ||
|
|
||
| } | ||
|
|
||
| #[derive(Clone)] | ||
| pub struct HiddenServiceTransport { | ||
| inner: Arc<RwLock<HiddenServiceTransportInner>> | ||
| } | ||
|
|
||
| impl HiddenServiceTransport { | ||
| pub fn new(hidden_service_ctl: HiddenServiceController) -> Self { | ||
| Self { | ||
| inner : Arc::new(RwLock::new(HiddenServiceTransportInner { | ||
| socks_transport: None, | ||
| hidden_service_ctl | ||
| })) | ||
| } | ||
| } | ||
|
|
||
| async fn ensure_initialized(&self) -> Result<(), io::Error> { | ||
| let inner = self.inner.read().await; | ||
| if inner.socks_transport.is_none() { | ||
| drop(inner); | ||
| let mut mut_inner = self.inner.write().await; | ||
| if mut_inner.socks_transport.is_none() { | ||
| let transport = mut_inner.hidden_service_ctl.initialize_transport().await.expect("TODO NEED TO MAP THESE ERRORS SOMEHOW"); | ||
| mut_inner.socks_transport = Some(transport); | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
| } | ||
| #[crate::async_trait] | ||
| impl Transport for HiddenServiceTransport { | ||
| type Output = <SocksTransport as Transport>::Output; | ||
| type Error = <SocksTransport as Transport>::Error; | ||
| type Listener = <SocksTransport as Transport>::Listener; | ||
|
|
||
| async fn listen(&self, addr: &Multiaddr) -> Result<(Self::Listener, Multiaddr), Self::Error> { | ||
| self.ensure_initialized().await?; | ||
| let inner = self.inner.read().await; | ||
|
|
||
| // info!( | ||
| // target: LOG_TARGET, | ||
| // "Tor hidden service initialized. proxied_address = '{:?}'", | ||
| // inner.proxied_address(), | ||
| // ); | ||
| Ok(inner.socks_transport.as_ref().unwrap().listen(addr).await?) | ||
| } | ||
|
|
||
| async fn dial(&self, addr: &Multiaddr) -> Result<Self::Output, Self::Error> { | ||
| self.ensure_initialized().await?; | ||
| let inner = self.inner.read().await; | ||
| Ok(inner.socks_transport.as_ref().unwrap().dial(addr).await?) | ||
| } | ||
| } |
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