104 lines
2.7 KiB
Rust
104 lines
2.7 KiB
Rust
mod server;
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mod session;
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use server::*;
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use std::{fs, io, net, path, sync};
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use std::collections::HashMap;
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use std::sync::Arc;
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use anyhow::Context;
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use clap::Parser;
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use ring::digest::{digest, SHA256};
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use warp::Filter;
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use moq_warp::Source;
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/// Search for a pattern in a file and display the lines that contain it.
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#[derive(Parser, Clone)]
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struct Cli {
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/// Listen on this address
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#[arg(short, long, default_value = "[::]:4443")]
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addr: net::SocketAddr,
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/// Use the certificate file at this path
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#[arg(short, long, default_value = "cert/localhost.crt")]
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cert: path::PathBuf,
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/// Use the private key at this path
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#[arg(short, long, default_value = "cert/localhost.key")]
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key: path::PathBuf,
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/// Use the media file at this path
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#[arg(short, long, default_value = "media/fragmented.mp4")]
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media: path::PathBuf,
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}
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#[tokio::main]
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async fn main() -> anyhow::Result<()> {
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env_logger::init();
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let args = Cli::parse();
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// Create a web server to serve the fingerprint
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let serve = serve_http(args.clone());
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// Create a fake media source from disk.
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let mut media = Source::new(args.media).context("failed to open fragmented.mp4")?;
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let mut broadcasts = HashMap::new();
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broadcasts.insert("demo".to_string(), media.broadcast());
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// Create a server to actually serve the media
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let config = ServerConfig {
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addr: args.addr,
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cert: args.cert,
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key: args.key,
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broadcasts: Arc::new(broadcasts),
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};
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let mut server = Server::new(config).context("failed to create server")?;
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// Run all of the above
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tokio::select! {
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res = server.run() => res.context("failed to run server"),
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res = media.run() => res.context("failed to run media source"),
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res = serve => res.context("failed to run HTTP server"),
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}
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}
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// Run a HTTP server using Warp
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// TODO remove this when Chrome adds support for self-signed certificates using WebTransport
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async fn serve_http(args: Cli) -> anyhow::Result<()> {
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// Read the PEM certificate file
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let crt = fs::File::open(&args.cert)?;
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let mut crt = io::BufReader::new(crt);
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// Parse the DER certificate
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let certs = rustls_pemfile::certs(&mut crt)?;
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let cert = certs.first().expect("no certificate found");
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// Compute the SHA-256 digest
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let fingerprint = digest(&SHA256, cert.as_ref());
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let fingerprint = hex::encode(fingerprint.as_ref());
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let fingerprint = sync::Arc::new(fingerprint);
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let cors = warp::cors().allow_any_origin();
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// What an annoyingly complicated way to serve a static String
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// I spent a long time trying to find the exact way of cloning and dereferencing the Arc.
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let routes = warp::path!("fingerprint")
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.map(move || (*(fingerprint.clone())).clone())
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.with(cors);
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warp::serve(routes)
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.tls()
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.cert_path(args.cert)
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.key_path(args.key)
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.run(args.addr)
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.await;
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Ok(())
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}
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