fix: check for upcase string as file

Signed-off-by: gfanton <[email protected]>

gno.land/pkg/gnoweb/url.go

@@ -12,7 +12,7 @@ import (
 var ErrURLInvalidPath = errors.New("invalid path")
 
 // rePkgOrRealmPath matches and validates a flexible path.
-var rePkgOrRealmPath = regexp.MustCompile(`^/[a-zA-Z][a-zA-Z0-9_/]*$`)
+var rePkgOrRealmPath = regexp.MustCompile(`^/[a-z][a-z0-9_/]*$`)
 
 // GnoURL decomposes the parts of an URL to query a realm.
 type GnoURL struct {
@@ -152,11 +152,16 @@ func ParseGnoURL(u *url.URL) (*GnoURL, error) {
 	}
 
 	var file string
-	if ext := filepath.Ext(upath); ext != "" {
-		file = filepath.Base(upath)
-		upath = strings.TrimSuffix(upath, file)
 
-		// Trim last slash
+	// A file is considered as one that either ends with an extension or
+	// contains an uppercase rune
+	ext := filepath.Ext(upath)
+	base := filepath.Base(upath)
+	if ext != "" || strings.ToLower(base) != base {
+		file = base
+		upath = strings.TrimSuffix(upath, base)
+
+		// Trim last slash if any
 		if i := strings.LastIndexByte(upath, '/'); i > 0 {
 			upath = upath[:i]
 		}

gno.land/pkg/gnoweb/url_test.go

@@ -237,6 +237,19 @@ func TestParseGnoURL(t *testing.T) {
 				Domain: "gno.land",
 			},
 		},
+
+		{
+			Name:  "no extension file",
+			Input: "https://gno.land/r/demo/lIcEnSe",
+			Expected: &GnoURL{
+				Path:     "/r/demo",
+				File:     "lIcEnSe",
+				Args:     "",
+				WebQuery: url.Values{},
+				Query:    url.Values{},
+				Domain:   "gno.land",
+			},
+		},
 	}
 
 	for _, tc := range testCases {