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Proper dns configuration!

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Slatian
2023-08-06 00:04:42 +02:00
parent 5c7d880733
commit a334eb428a
3 changed files with 70 additions and 66 deletions
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83
src/main.rs
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@ -103,6 +103,7 @@ struct ServiceSharedState {
#[derive(Clone)]
struct DerivedConfiguration {
dns_resolver_selectables: Vec<Selectable>,
default_resolver: String,
}
#[derive(Parser)]
@ -228,61 +229,30 @@ async fn main() {
location_db.reload_database().ok();
// Initalize DNS resolver with os defaults
println!("Initalizing dns resolver ...");
println!("Initalizing dns resolvers ...");
let mut dns_resolver_selectables = Vec::<Selectable>::new();
println!("Initalizing System resolver ...");
let res = TokioAsyncResolver::tokio_from_system_conf();
//let res = TokioAsyncResolver::tokio(ResolverConfig::default(), ResolverOpts::default());
let dns_resolver = match res {
Ok(resolver) => resolver,
Err(e) => {
println!("Error while setting up dns resolver: {e}");
::std::process::exit(1);
}
};
dns_resolver_selectables.push(Selectable {
id: "default".to_string(),
name: "System".to_string(),
weight: 1000,
});
//FIXME: Not release ready,must be configurable and have better error handling.
println!("Initalizing Quad9 resolver ...");
let quad9_resolver = TokioAsyncResolver::tokio(
trust_dns_resolver::config::ResolverConfig::quad9_tls(),
Default::default()
).unwrap();
dns_resolver_selectables.push(Selectable {
id: "quad9".to_string(),
name: "Quad9".to_string(),
weight: 500
});
println!("Initalizing Google resolver ...");
let google_resolver = TokioAsyncResolver::tokio(
trust_dns_resolver::config::ResolverConfig::google(),
Default::default()
).unwrap();
dns_resolver_selectables.push(Selectable {
id: "google".to_string(),
name: "Google".to_string(),
weight: 10,
});
println!("Initalizing Cloudflare resolver ...");
let cloudflare_resolver = TokioAsyncResolver::tokio(
trust_dns_resolver::config::ResolverConfig::cloudflare_tls(),
Default::default()
).unwrap();
dns_resolver_selectables.push(Selectable {
id: "cloudflare".to_string(),
name: "Cloudflare".to_string(),
weight: 20,
});
let mut dns_resolver_map: HashMap<String,TokioAsyncResolver> = HashMap::new();
if config.dns.enable_system_resolver {
println!("Initalizing System resolver ...");
let res = TokioAsyncResolver::tokio_from_system_conf();
let resolver = match res {
Ok(resolver) => resolver,
Err(e) => {
println!("Error while setting up dns resolver: {e}");
::std::process::exit(1);
}
};
dns_resolver_map.insert(config.dns.system_resolver_id.clone(), resolver);
dns_resolver_selectables.push(Selectable {
id: config.dns.system_resolver_id.clone(),
name: config.dns.system_resolver_name.clone(),
weight: config.dns.system_resolver_weight,
});
}
for (key, resolver_config) in &config.dns.resolver {
println!("Initalizing {} resolver ...", key);
let resolver = TokioAsyncResolver::tokio(
@ -297,11 +267,6 @@ async fn main() {
});
}
dns_resolver_map.insert("default".to_string(), dns_resolver);
dns_resolver_map.insert("quad9".to_string(), quad9_resolver);
dns_resolver_map.insert("google".to_string(), google_resolver);
dns_resolver_map.insert("cloudflare".to_string(), cloudflare_resolver);
let listen_on = config.server.listen_on;
let ip_header = config.server.ip_header.clone();
@ -317,8 +282,12 @@ async fn main() {
});
dns_resolver_selectables.sort_by(|a,b| b.weight.cmp(&a.weight));
let default_resolver = dns_resolver_selectables.get(0)
.map(|s| s.id.clone() )
.unwrap_or("none".to_string());
let derived_config = DerivedConfiguration {
dns_resolver_selectables: dns_resolver_selectables,
default_resolver: default_resolver,
};
let signal_usr1_handlers_state = shared_state.clone();
@ -386,7 +355,7 @@ async fn settings_query_middleware<B>(
next: Next<B>
) -> Response {
let mut format = query.format;
let mut dns_resolver_id = config.dns.default_resolver;
let mut dns_resolver_id = derived_config.default_resolver;
if let Some(resolver_id) = query.dns {
dns_resolver_id = resolver_id;