Parse bracketed IPv6 file endpoints

src/file_transfer.rs

@@ -165,6 +165,12 @@ pub fn parse_copy_endpoint(raw: &str) -> CopyEndpoint {
     if looks_like_windows_path(raw) {
         return CopyEndpoint::Local(PathBuf::from(raw));
     }
+    if let Some((host, path)) = parse_bracketed_remote_endpoint(raw) {
+        return CopyEndpoint::Remote { host, path };
+    }
+    if raw.starts_with('[') {
+        return CopyEndpoint::Local(PathBuf::from(raw));
+    }
     let Some(index) = raw.find(':') else {
         return CopyEndpoint::Local(PathBuf::from(raw));
     };
@@ -183,6 +189,25 @@ pub fn parse_copy_endpoint(raw: &str) -> CopyEndpoint {
     }
 }
 
+fn parse_bracketed_remote_endpoint(raw: &str) -> Option<(String, String)> {
+    let rest = raw.strip_prefix('[')?;
+    let close = rest.find(']')?;
+    let host = &rest[..close];
+    let suffix = &rest[close + 1..];
+    if host.is_empty() || host.contains('/') || host.contains('\\') || !suffix.starts_with(':') {
+        return None;
+    }
+    let path = &suffix[1..];
+    Some((
+        host.to_string(),
+        if path.is_empty() {
+            ".".to_string()
+        } else {
+            path.to_string()
+        },
+    ))
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum CopyEndpoint {
     Local(PathBuf),
@@ -277,4 +302,30 @@ mod tests {
             CopyEndpoint::Local(PathBuf::from("C:\\Users\\palav\\x"))
         );
     }
+
+    #[test]
+    fn copy_endpoint_parses_bracketed_ipv6_remote_paths() {
+        assert_eq!(
+            parse_copy_endpoint("[2001:db8::1]:/var/log/syslog"),
+            CopyEndpoint::Remote {
+                host: "2001:db8::1".to_string(),
+                path: "/var/log/syslog".to_string()
+            }
+        );
+        assert_eq!(
+            parse_copy_endpoint("[::1]:"),
+            CopyEndpoint::Remote {
+                host: "::1".to_string(),
+                path: ".".to_string()
+            }
+        );
+        assert_eq!(
+            parse_copy_endpoint("[bad/host]:path"),
+            CopyEndpoint::Local(PathBuf::from("[bad/host]:path"))
+        );
+        assert_eq!(
+            parse_copy_endpoint("[::1]"),
+            CopyEndpoint::Local(PathBuf::from("[::1]"))
+        );
+    }
 }