remove the complete ip address from the logs in case they are gonna made public.

First we though about hashing it together with the username, but we dont have the username. hope that removing 50% of the information is enough to identify 2 addresses as equal or different without knowing the exact address

network/src/channel.rs

@@ -67,6 +67,23 @@ pub(crate) type C2cMpscConnect = (
 );
 pub(crate) type C2sProtocol = (Protocols, ConnectAddr, Cid);
 
+fn anonymize_addr(addr: &SocketAddr) -> String {
+    use std::net::IpAddr;
+    match addr.ip() {
+        IpAddr::V4(ip) => {
+            let [o0, _, o2, _] = ip.octets();
+            format!("{o0}.xxx.{o2}.xxx:{}", addr.port())
+        },
+        IpAddr::V6(ip) => {
+            let [s0, s1, _, _, s4, s5, _, _] = ip.segments();
+            format!(
+                "[{s0:04x}:{s1:04x}:xxxx:xxxx:{s4:04x}:{s5:04x}:xxxx:xxxx]:{}",
+                addr.port()
+            )
+        },
+    }
+}
+
 impl Protocols {
     const MPSC_CHANNEL_BOUND: usize = 1000;
 
@@ -131,7 +148,11 @@ impl Protocols {
                     );
                 }
                 let cid = cids.fetch_add(1, Ordering::Relaxed);
-                info!(?remote_addr, ?cid, "Accepting Tcp from");
+                info!(
+                    remote_addr = anonymize_addr(&remote_addr),
+                    ?cid,
+                    "Accepting Tcp from"
+                );
                 let metrics = ProtocolMetricCache::new(&cid.to_string(), Arc::clone(&metrics));
                 let _ = c2s_protocol_s.send((
                     Self::new_tcp(stream, metrics.clone()),
@@ -295,7 +316,7 @@ impl Protocols {
                 next = listener.next().fuse() => Some(next),
                 _ = &mut end_receiver => None,
             } {
-                let remote_addr = connecting.remote_address();
+                let remote_addr = anonymize_addr(&connecting.remote_address());
                 let connection = match connecting.await {
                     Ok(c) => c,
                     Err(e) => {