added: auth middleware

internal/router/helper.go

@@ -0,0 +1,64 @@
+package router
+
+import (
+	"fmt"
+	"merch-parser-api/internal/shared"
+	"net/http"
+	"strings"
+)
+
+func excluded(prefix, path, method string, excludedRoutes *map[string]shared.ExcludeRoute) bool {
+	if excludedRoutes == nil {
+		return false
+	}
+
+	nPath := normalizePath(path)
+
+	switch {
+	case nPath == "/"+prefix && method == http.MethodGet: //ignore api base path for GET method
+		return true
+	case nPath == "/swagger/*any":
+		return true
+	case nPath == "/version":
+		return true
+	}
+
+	if value, ok := (*excludedRoutes)[nPath]; ok {
+		fmt.Println(value, ok)
+		if isSameRoute(nPath, value.Route) && value.Method == method {
+			return true
+		}
+	}
+
+	return false
+}
+
+func normalizePath(path string) string {
+	return strings.TrimRight(path, "/")
+}
+
+func joinPaths(paths ...string) string {
+	result := ""
+	for _, p := range paths {
+		if result == "" {
+			result = strings.TrimRight(p, "/")
+		} else {
+			result = result + "/" + strings.Trim(p, "/")
+		}
+	}
+	return "/" + strings.TrimLeft(result, "/")
+}
+
+func isSameRoute(path, excluded string) bool {
+	path = strings.Split(path, "?")[0]
+	path = strings.TrimSuffix(path, "/")
+	excluded = strings.TrimSuffix(excluded, "/")
+
+	if strings.HasSuffix(excluded, "/*any") || strings.HasSuffix(excluded, "/*") {
+		base := strings.TrimSuffix(excluded, "/*any")
+		base = strings.TrimSuffix(base, "/*")
+		return strings.HasPrefix(path, base)
+	}
+
+	return path == excluded
+}