dump unsupported mime type string

src/client/connection/response/meta/mime.rs

@@ -8,7 +8,7 @@
 pub mod error;
 pub use error::Error;
 
-use glib::{GString, Uri};
+use glib::{GString, Regex, RegexCompileFlags, RegexMatchFlags, Uri};
 use std::path::Path;
 
 /// https://geminiprotocol.net/docs/gemtext-specification.gmi#media-type-parameters
@@ -80,7 +80,7 @@ impl Mime {
             Some("flac") => Ok(Self::AudioFlac),
             Some("mp3") => Ok(Self::AudioMpeg),
             Some("oga" | "ogg" | "opus" | "spx") => Ok(Self::AudioOgg),
-            _ => Err(Error::Undefined),
+            _ => Err(Error::Undefined(None)),
         } // @TODO extension to lowercase
     }
 
@@ -155,7 +155,16 @@ impl Mime {
 
         // Some type exist, but not defined yet (on status code is 2*)
         if value.starts_with("2") && value.contains("/") {
-            return Err(Error::Undefined);
+            return Err(Error::Undefined(
+                Regex::split_simple(
+                    r"^2\d{1}\s([^\/]+\/[^\s]+)",
+                    value,
+                    RegexCompileFlags::DEFAULT,
+                    RegexMatchFlags::DEFAULT,
+                )
+                .get(1)
+                .map(|this| this.to_string()),
+            ));
         }
 
         // Done

src/client/connection/response/meta/mime/error.rs

@@ -4,7 +4,7 @@ use std::fmt::{Display, Formatter, Result};
 pub enum Error {
     Decode(std::string::FromUtf8Error),
     Protocol,
-    Undefined,
+    Undefined(Option<String>),
 }
 
 impl Display for Error {
@@ -16,8 +16,15 @@ impl Display for Error {
             Self::Protocol => {
                 write!(f, "Protocol error")
             }
-            Self::Undefined => {
+            Self::Undefined(e) => {
-                write!(f, "Undefined")
+                write!(
+                    f,
+                    "{}",
+                    match e {
+                        Some(value) => format!("`{value}` undefined"),
+                        None => "Could not parse value".to_string(),
+                    }
+                )
             }
         }
     }