Trait ClientFilter 

pub trait ClientFilter: Send + Sync {
    // Required method
    fn accept(&self, hello: &Hello) -> bool;
}

Connection-level client filter — called after Hello, before authentication.

Use this to implement MAC allowlists, IP-based filtering, or rate limiting. Return true to accept the client, false to disconnect immediately.

Example: MAC allowlist

use snapcast_server::auth::ClientFilter;
use snapcast_server::Hello;

struct MacAllowlist(Vec<String>);

impl ClientFilter for MacAllowlist {
    fn accept(&self, hello: &Hello) -> bool {
        self.0.is_empty() || self.0.iter().any(|m| m.eq_ignore_ascii_case(&hello.mac))
    }
}

Required Methods

fn accept(&self, hello: &Hello) -> bool

Decide whether to accept a client based on its Hello message.

Implementors