Accept wider range of IP for proxies and RTC relay

src/utils/mod.rs

@@ -11,4 +11,5 @@ pub mod pdf_utils;
 pub mod mp3_utils;
 pub mod mp4_utils;
 pub mod zip_utils;
-pub mod webpage_utils;
+pub mod webpage_utils;
+pub mod network_utils;

src/utils/network_utils.rs

@@ -0,0 +1,28 @@
+//! # Network utilities
+//!
+//! @author Pierre Hubert
+
+/// Check whether an IP address matches a given pattern. Pattern can be either:
+/// * An IP address
+/// * An IP mask ending with a star (*)
+///
+/// ```
+/// use comunic_server::utils::network_utils::match_ip;
+///
+/// assert!(match_ip("127.0.0.1", "127.0.0.1"));
+/// assert!(!match_ip("127.0.0.1", "127.0.0.2"));
+/// assert!(match_ip("127.0.0.*", "127.0.0.2"));
+/// assert!(!match_ip("127.0.0.*", "187.0.0.2"));
+/// ```
+///
+pub fn match_ip(pattern: &str, ip: &str) -> bool {
+    if pattern.eq(ip) {
+        return true;
+    }
+
+    if pattern.ends_with("*") && ip.starts_with(&pattern.replace("*", "")){
+        return true;
+    }
+
+    false
+}