WASM

example-usage/server/src/tls.rs

@@ -0,0 +1,25 @@
+use std::fs;
+
+pub fn load_or_generate_tls(
+    cert_path: &str,
+    key_path: &str,
+) -> Result<(Vec<u8>, Vec<u8>), Box<dyn std::error::Error>> {
+    if let (Ok(c), Ok(k)) = (fs::read(cert_path), fs::read(key_path)) {
+        println!("Using existing TLS cert from {cert_path}");
+        return Ok((c, k));
+    }
+
+    println!("Generating self-signed TLS certificate ...");
+    let key_pair = rcgen::KeyPair::generate()?;
+    let params = rcgen::CertificateParams::new(vec!["localhost".into(), "127.0.0.1".into()])?;
+    let cert = params.self_signed(&key_pair)?;
+
+    let cert_str = cert26.pem();
+    let key_str = key_pair.serialize_pem();
+
+    fs::write(cert_path, cert_str.as_bytes())?;
+    fs::write(key_path, key_str.as_bytes())?;
+    println!("Wrote {cert_path} and {key_path}");
+
+    Ok((cert_str.into_bytes(), key_str.into_bytes()))
+}