first commit

core/node_headers.go

@@ -0,0 +1,66 @@
+package core
+
+import (
+	"net/http"
+
+	"github.com/dop251/goja"
+)
+
+func MakeHeadersObject(vm *goja.Runtime, header http.Header) *goja.Object {
+	obj := vm.NewObject()
+	obj.Set("get", func(name string) string {
+		return header.Get(name)
+	})
+
+	obj.Set("has", func(name string) bool {
+		return header.Get(name) != ""
+	})
+
+	obj.Set("set", func(name, value string) {
+		header.Set(name, value)
+	})
+
+	obj.Set("append", func(name, value string) {
+		header.Add(name, value)
+	})
+
+	obj.Set("delete", func(name string) {
+		header.Del(name)
+	})
+
+	obj.Set("keys", func() []string {
+		keys := make([]string, 0, len(header))
+		for k := range header {
+			keys = append(keys, k)
+		}
+		return keys
+	})
+
+	obj.Set("values", func() []string {
+		values := make([]string, 0, len(header))
+		for _, v := range header {
+			values = append(values, v...)
+		}
+		return values
+	})
+
+	obj.Set("entries", func() [][2]string {
+		entries := make([][2]string, 0, len(header))
+		for k, v := range header {
+			for _, value := range v {
+				entries = append(entries, [2]string{k, value})
+			}
+		}
+		return entries
+	})
+
+	obj.Set("forEach", func(callback func(value, name string)) {
+		for k, v := range header {
+			for _, value := range v {
+				callback(value, k)
+			}
+		}
+	})
+
+	return obj
+}