feature: check is valid local host params

Cargo.toml

@@ -14,3 +14,4 @@ name = "core"
 path = "src/lib.rs"
 
 [dependencies]
+regex = "1.9.3"

src/server.rs

@@ -11,6 +11,10 @@ impl Server {
       panic!("An error occured, parameters need to be not empty");
     }
 
+    if !Params::is_valid_local_host(host) {
+      panic!("An error occured, parameters need to be valid local host");
+    }
+
     addr.push_str(&host);
     addr.push(':');
     addr.push_str(&port.to_string());

src/utils/params.rs

@@ -1,3 +1,5 @@
+use regex::Regex;
+
 pub struct Params {}
 
 impl Params {
@@ -7,4 +9,13 @@ impl Params {
 
     is_host_empty && is_port_empty
   }
+
+  pub fn is_valid_local_host(host: &str) -> bool {
+    let pattern = r"^(localhost|127\.0\.0\.1)$";
+
+    match Regex::new(pattern) {
+      Ok(re) => re.is_match(host),
+      Err(_) => return false,
+    }
+  }
 }