✨ feat(net/ctype): add new util func for check content-type

- ToKind()

netutil/httpctype/content_type.go

@@ -9,13 +9,13 @@ const (
 	HTML = "text/html; charset=utf-8"
 
 	Text  = "text/plain; charset=utf-8" // equals Plain
-	Plain = "text/plain; charset=utf-8"
+	Plain = Text
 
 	XML2 = "text/xml; charset=utf-8"
 	XML  = "application/xml; charset=utf-8"
 
-	YML  = "application/x-yaml; charset=utf-8"
 	YAML = "application/x-yaml; charset=utf-8"
+	YML  = YAML
 
 	JSON  = "application/json; charset=utf-8"
 	JSONP = "application/javascript; charset=utf-8" // equals to JS
@@ -25,6 +25,7 @@ const (
 
 	MSGPACK  = "application/x-msgpack; charset=utf-8"
 	MSGPACK2 = "application/msgpack; charset=utf-8"
+
 	PROTOBUF = "application/x-protobuf"
 
 	Form = "application/x-www-form-urlencoded"

netutil/httpctype/kind.go

@@ -0,0 +1,9 @@
+package httpctype
+
+// there commonly base type category list
+const (
+	KindForm     = "form"
+	KindFormData = "dataForm"
+	KindJSON     = "json"
+	KindXML      = "xml"
+)

netutil/httpctype/util.go

@@ -0,0 +1,33 @@
+package httpctype
+
+import "strings"
+
+// ToKind name match
+func ToKind(cType, defaultType string) string {
+	if len(cType) == 0 {
+		return defaultType
+	}
+
+	// JSON body request: "application/json"
+	if strings.Contains(cType, "/json") {
+		return KindJSON
+	}
+
+	// basic POST form data binding. content type: "application/x-www-form-urlencoded"
+	if strings.Contains(cType, "/x-www-form-urlencoded") {
+		return KindForm
+	}
+
+	// contains file uploaded form: "multipart/form-data" "multipart/mixed"
+	// strings.HasPrefix(mediaType, "multipart/")
+	if strings.Contains(cType, "/form-data") {
+		return KindFormData
+	}
+
+	// XML body request: "text/xml"
+	if strings.Contains(cType, "/xml") {
+		return KindXML
+	}
+
+	return defaultType
+}

netutil/httpctype/util_test.go

@@ -0,0 +1,28 @@
+package httpctype_test
+
+import (
+	"testing"
+
+	"github.com/gookit/goutil/netutil/httpctype"
+	"github.com/gookit/goutil/testutil/assert"
+)
+
+func TestToKind(t *testing.T) {
+	tests := []struct {
+		cType       string
+		defaultType string
+		want        string
+	}{
+		{"", "abc", "abc"},
+		{"not-match", "", ""},
+		{"not-match", "abc", "abc"},
+		{httpctype.JSON, "", httpctype.KindJSON},
+		{httpctype.Form, "", httpctype.KindForm},
+		{httpctype.FormData, "", httpctype.KindFormData},
+		{httpctype.XML, "", httpctype.KindXML},
+	}
+
+	for _, tt := range tests {
+		assert.Equal(t, tt.want, httpctype.ToKind(tt.cType, tt.defaultType))
+	}
+}