added convesion from and to hex [CI SKIP]

wg-event-gen/src/model.rs

@@ -1,4 +1,5 @@
 use base64::{decode, encode};
+use hex;
 use std::error::Error;
 use std::fmt;
 use std::hash::{Hash, Hasher};
@@ -21,6 +22,31 @@ impl fmt::Display for ECCKey {
     }
 }
 
+pub trait HexBackend {
+    fn from_bytes(bytes: Vec<u8>) -> Self;
+    fn bytes(&self) -> &Vec<u8>;
+    fn from_hex<I: AsRef<str>>(key: I) -> io::Result<Self>
+    where
+        Self: Sized,
+    {
+        Ok(Self::from_bytes(hex::decode(key.as_ref()).map_err(
+            |_| io::Error::new(io::ErrorKind::InvalidData, "Failed to decode hexstring"),
+        )?))
+    }
+    fn as_hex(&self) -> io::Result<String> {
+        Ok(hex::encode(&self.bytes()))
+    }
+}
+
+impl<T: Base64Backed> HexBackend for T {
+    fn from_bytes(bytes: Vec<u8>) -> Self {
+        <Self as Base64Backed>::from_bytes(bytes)
+    }
+    fn bytes(&self) -> &Vec<u8> {
+        <Self as Base64Backed>::bytes(self)
+    }
+}
+
 pub trait Base64Backed {
     fn from_bytes(bytes: Vec<u8>) -> Self;
     fn bytes(&self) -> &Vec<u8>;
@@ -34,7 +60,7 @@ pub trait Base64Backed {
                 return Err(io::Error::new(
                     io::ErrorKind::InvalidData,
                     "Failed to decode base64",
-                ))
+                ));
             }
         }; /*.map_err(|err| {
 
@@ -203,3 +229,15 @@ pub trait WireguardController {
 
     fn update_peer(&mut self, peer: &Peer) -> io::Result<()>;
 }
+
+#[cfg(test)]
+mod test {
+
+    use super::*;
+    #[test]
+    fn key_encoding() {
+        let key_encoded = "08df3bebd54217eb769d607f8673e1c3c53bb55d6ac689348a9227c8c4dd8857";
+        let key = ECCKey::from_hex(key_encoded).unwrap();
+        assert_eq!(&key.as_hex().unwrap(), key_encoded);
+    }
+}