fix: added HTMLTextTransformer

transformers/html_text_transformer.go

@@ -0,0 +1,77 @@
+package transformers
+
+import (
+	"context"
+	"io"
+	"io/ioutil"
+	"mime"
+	"net/textproto"
+	"reflect"
+
+	"github.com/go-courier/reflectx"
+	"github.com/go-courier/reflectx/typesutil"
+)
+
+func init() {
+	TransformerMgrDefault.Register(&HTMLTextTransformer{})
+}
+
+type HTMLTextTransformer struct {
+}
+
+func (t *HTMLTextTransformer) String() string {
+	return t.Names()[0]
+}
+
+func (HTMLTextTransformer) Names() []string {
+	return []string{"text/html", "html"}
+}
+
+func (HTMLTextTransformer) NamedByTag() string {
+	return ""
+}
+
+func (HTMLTextTransformer) New(context.Context, typesutil.Type) (Transformer, error) {
+	return &HTMLTextTransformer{}, nil
+}
+
+func (t *HTMLTextTransformer) EncodeToWriter(w io.Writer, v interface{}) (string, error) {
+	rv, ok := v.(reflect.Value)
+	if !ok {
+		rv = reflect.ValueOf(v)
+	}
+
+	return superWrite(w, func(w io.Writer) error {
+		if reflectx.IsBytes(rv.Type()) {
+			_, err := w.Write(rv.Bytes())
+			return err
+		}
+
+		data, err := reflectx.MarshalText(rv)
+		if err != nil {
+			return err
+		}
+		if _, err := w.Write(data); err != nil {
+			return err
+		}
+		return nil
+	}, mime.FormatMediaType(t.String(), map[string]string{
+		"charset": "utf-8",
+	}))
+}
+
+func (HTMLTextTransformer) DecodeFromReader(r io.Reader, v interface{}, headers ...textproto.MIMEHeader) error {
+	rv, ok := v.(reflect.Value)
+	if !ok {
+		rv = reflect.ValueOf(v)
+	}
+	data, err := ioutil.ReadAll(r)
+	if err != nil {
+		return err
+	}
+	if reflectx.IsBytes(rv.Type()) {
+		rv.SetBytes(data)
+		return nil
+	}
+	return reflectx.UnmarshalText(rv, data)
+}