44 lines
1.4 KiB
TypeScript
44 lines
1.4 KiB
TypeScript
#!/bin/env -S deno run --allow-net
|
|
|
|
import { MsgToClient, MsgToServer, mts } from "../common/mod.ts";
|
|
import { channel, log_from, parsed_stream, Receiver, Sender, serialized_stream } from "../common/utils.ts";
|
|
const log = log_from(import.meta);
|
|
|
|
export class Gateway {
|
|
server;
|
|
constructor(port: number) {
|
|
this.server = Deno.listen({ port });
|
|
log("Listening on", port);
|
|
}
|
|
async *accept() {
|
|
for await (const connection of this.server) {
|
|
const session = await ClientInterface.init(connection);
|
|
log("New session.");
|
|
yield session;
|
|
}
|
|
}
|
|
}
|
|
|
|
export class ClientInterface {
|
|
inputs;
|
|
outputs;
|
|
|
|
constructor(inputs: Receiver<MsgToServer>, outputs: Sender<MsgToClient>) {
|
|
this.inputs = inputs;
|
|
this.outputs = outputs;
|
|
}
|
|
|
|
// deno-lint-ignore require-await
|
|
static async init(connection: Deno.Conn) {
|
|
// TODO : handshake ?
|
|
const [input_sender, input_receiver] = channel<MsgToServer>();
|
|
const [output_sender, output_receiver] = channel<MsgToClient>();
|
|
input_sender.send_all(parsed_stream(mts.message_to_server_parser())(connection.readable))
|
|
.catch((err) => log("Deserialisation failure :", err.message))
|
|
.finally(() => input_sender.send({ kind: "exit" }));
|
|
serialized_stream(output_receiver.iter())(connection.writable)
|
|
.catch((err) => log("Serialisation failure :", err.message))
|
|
.finally(() => input_sender.send({ kind: "exit" }));
|
|
return new ClientInterface(input_receiver, output_sender);
|
|
}
|
|
}
|