fix: #2672 (#2681)

* fix: #2672

* chore: fix more cases

* chore: update deps

* chore: update deps

* chore: refactor

* chore: refactor

* chore: refactor

core/mapping/unmarshaler.go

@@ -735,8 +735,16 @@ func (u *Unmarshaler) generateMap(keyType, elemType reflect.Type, mapValue inter
 		default:
 			switch v := keythData.(type) {
 			case bool:
+				if dereffedElemKind != reflect.Bool {
+					return emptyValue, errTypeMismatch
+				}
+
 				targetValue.SetMapIndex(key, reflect.ValueOf(v))
 			case string:
+				if dereffedElemKind != reflect.String {
+					return emptyValue, errTypeMismatch
+				}
+
 				targetValue.SetMapIndex(key, reflect.ValueOf(v))
 			case json.Number:
 				target := reflect.New(dereffedElemType)
@@ -746,6 +754,10 @@ func (u *Unmarshaler) generateMap(keyType, elemType reflect.Type, mapValue inter
 
 				targetValue.SetMapIndex(key, target.Elem())
 			default:
+				if dereffedElemKind != keythValue.Kind() {
+					return emptyValue, errTypeMismatch
+				}
+
 				targetValue.SetMapIndex(key, keythValue)
 			}
 		}

core/mapping/unmarshaler_test.go

@@ -3563,6 +3563,71 @@ func TestGoogleUUID(t *testing.T) {
 	assert.Equal(t, "6ba7b810-9dad-11d1-80b4-00c04fd430c2", val.Uidp.String())
 }
 
+func TestUnmarshalJsonReaderWithTypeMismatchBool(t *testing.T) {
+	var req struct {
+		Params map[string]bool `json:"params"`
+	}
+	body := `{"params":{"a":"123"}}`
+	assert.Equal(t, errTypeMismatch, UnmarshalJsonReader(strings.NewReader(body), &req))
+}
+
+func TestUnmarshalJsonReaderWithTypeMismatchString(t *testing.T) {
+	var req struct {
+		Params map[string]string `json:"params"`
+	}
+	body := `{"params":{"a":{"a":123}}}`
+	assert.Equal(t, errTypeMismatch, UnmarshalJsonReader(strings.NewReader(body), &req))
+}
+
+func TestUnmarshalJsonReaderWithMismatchType(t *testing.T) {
+	type Req struct {
+		Params map[string]string `json:"params"`
+	}
+
+	var req Req
+	body := `{"params":{"a":{"a":123}}}`
+	assert.Equal(t, errTypeMismatch, UnmarshalJsonReader(strings.NewReader(body), &req))
+}
+
+func TestUnmarshalJsonReaderWithMismatchTypeBool(t *testing.T) {
+	type Req struct {
+		Params map[string]bool `json:"params"`
+	}
+
+	tests := []struct {
+		name  string
+		input string
+	}{
+		{
+			name:  "int",
+			input: `{"params":{"a":123}}`,
+		},
+		{
+			name:  "int",
+			input: `{"params":{"a":"123"}}`,
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.name, func(t *testing.T) {
+			var req Req
+			assert.Equal(t, errTypeMismatch, UnmarshalJsonReader(strings.NewReader(test.input), &req))
+		})
+	}
+}
+
+func TestUnmarshalJsonReaderWithMismatchTypeBoolMap(t *testing.T) {
+	var req struct {
+		Params map[string]string `json:"params"`
+	}
+	assert.Equal(t, errTypeMismatch, UnmarshalJsonMap(map[string]interface{}{
+		"params": map[string]interface{}{
+			"a": true,
+		},
+	}, &req))
+}
+
 func BenchmarkDefaultValue(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		var a struct {

core/mapping/utils.go

@@ -82,7 +82,14 @@ func ValidatePtr(v *reflect.Value) error {
 func convertType(kind reflect.Kind, str string) (interface{}, error) {
 	switch kind {
 	case reflect.Bool:
-		return str == "1" || strings.ToLower(str) == "true", nil
+		switch strings.ToLower(str) {
+		case "1", "true":
+			return true, nil
+		case "0", "false":
+			return false, nil
+		default:
+			return false, errTypeMismatch
+		}
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		intValue, err := strconv.ParseInt(str, 10, 64)
 		if err != nil {