delegate from_uri method to gio::network_address wrapper

src/gio/network_address.rs

@@ -0,0 +1,24 @@
+pub mod error;
+pub use error::Error;
+
+use gio::NetworkAddress;
+use glib::Uri;
+
+/// Create new valid [NetworkAddress](https://docs.gtk.org/gio/class.NetworkAddress.html) from [Uri](https://docs.gtk.org/glib/struct.Uri.html)
+///
+/// Useful as:
+/// * shared [SocketConnectable](https://docs.gtk.org/gio/iface.SocketConnectable.html) interface
+/// * [SNI](https://geminiprotocol.net/docs/protocol-specification.gmi#server-name-indication) record for TLS connections
+pub fn from_uri(uri: &Uri, default_port: u16) -> Result<NetworkAddress, Error> {
+    Ok(NetworkAddress::new(
+        &match uri.host() {
+            Some(host) => host,
+            None => return Err(Error::Host(uri.to_string())),
+        },
+        if uri.port().is_positive() {
+            uri.port() as u16
+        } else {
+            default_port
+        },
+    ))
+}