refactor!: add ws endpoint, storage trait

registry/utils/wg.rs

@@ -0,0 +1,33 @@
+use base64::Engine;
+use serde::{Deserialize, de};
+
+#[derive(Clone)]
+pub struct WireguardPublicKey(String);
+
+impl<'de> Deserialize<'de> for WireguardPublicKey {
+    fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+
+        let bytes = base64::engine::general_purpose::STANDARD
+            .decode(&s)
+            .map_err(|_| de::Error::custom("invalid base64 in public key"))?;
+
+        if bytes.len() != 32 {
+            return Err(de::Error::invalid_length(
+                bytes.len(),
+                &"exactly 32 bytes for a Wireguard public key",
+            ));
+        }
+
+        Ok(WireguardPublicKey(s))
+    }
+}
+
+impl WireguardPublicKey {
+    pub fn as_str(&self) -> &str {
+        &self.0
+    }
+}