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use crate::{SecureChannelNewKeyExchanger, SecureChannelVault, SecureChannelWorker};
use async_trait::async_trait;
use ockam_core::{Address, LocalMessage, Message, Result, Routed, TransportMessage, Worker};
use ockam_node::Context;
use rand::random;
use serde::{Deserialize, Serialize};
use tracing::debug;
pub struct SecureChannelListener<V: SecureChannelVault, N: SecureChannelNewKeyExchanger> {
new_key_exchanger: N,
vault: V,
}
impl<V: SecureChannelVault, N: SecureChannelNewKeyExchanger> SecureChannelListener<V, N> {
pub fn new(new_key_exchanger: N, vault: V) -> Self {
Self {
new_key_exchanger,
vault,
}
}
}
#[derive(Serialize, Deserialize, Clone, PartialEq, Debug)]
pub struct CreateResponderChannelMessage {
payload: Vec<u8>,
completed_callback_address: Option<Address>,
}
impl CreateResponderChannelMessage {
pub fn payload(&self) -> &Vec<u8> {
&self.payload
}
pub fn completed_callback_address(&self) -> &Option<Address> {
&self.completed_callback_address
}
}
impl CreateResponderChannelMessage {
pub fn new(payload: Vec<u8>, completed_callback_address: Option<Address>) -> Self {
CreateResponderChannelMessage {
payload,
completed_callback_address,
}
}
}
#[async_trait]
impl<V: SecureChannelVault, N: SecureChannelNewKeyExchanger> Worker
for SecureChannelListener<V, N>
{
type Message = CreateResponderChannelMessage;
type Context = Context;
async fn handle_message(
&mut self,
ctx: &mut Self::Context,
msg: Routed<Self::Message>,
) -> Result<()> {
let reply = msg.return_route().clone();
let msg = msg.body();
let address_remote: Address = random();
let address_local: Address = random();
debug!(
"Starting SecureChannel responder at local: {}, remote: {}",
&address_local, &address_remote
);
let channel = SecureChannelWorker::new(
false,
reply.clone(),
address_remote.clone(),
address_local.clone(),
msg.completed_callback_address().clone(),
None,
self.new_key_exchanger.responder()?,
self.vault.clone(),
)?;
ctx.start_worker(vec![address_remote.clone(), address_local], channel)
.await?;
let msg = TransportMessage::v1(address_remote, reply, msg.payload().encode()?);
ctx.forward(LocalMessage::new(msg, Vec::new())).await?;
Ok(())
}
}