package form import ( "fmt" "reflect" "strconv" "strings" "time" "unicode" "github.com/araddon/dateparse" "github.com/photoprism/photoprism/pkg/txt" ) // Serialize returns a string containing all non-empty fields and values of a struct. func Serialize(f interface{}, all bool) string { v := reflect.ValueOf(f) if v.Kind() == reflect.Ptr { v = v.Elem() } if v.Kind() != reflect.Struct { return "" } q := make([]string, 0, v.NumField()) // Iterate through all form fields. for i := 0; i < v.NumField(); i++ { fieldValue := v.Field(i) fieldName := v.Type().Field(i).Tag.Get("form") fieldInfo := v.Type().Field(i).Tag.Get("serialize") // Serialize field values as string. if fieldName != "" && (fieldInfo != "-" || all) { switch t := fieldValue.Interface().(type) { case time.Time: if val := fieldValue.Interface().(time.Time); !val.IsZero() { if val.Hour() == 0 && val.Minute() == 0 { q = append(q, fmt.Sprintf("%s:%s", fieldName, val.Format("2006-01-02"))) } else { q = append(q, fmt.Sprintf("%s:\"%s\"", fieldName, val.String())) } } case int, int8, int16, int32, int64: if val := fieldValue.Int(); val != 0 { q = append(q, fmt.Sprintf("%s:%d", fieldName, val)) } case uint, uint8, uint16, uint32, uint64: if val := fieldValue.Uint(); val != 0 { q = append(q, fmt.Sprintf("%s:%d", fieldName, val)) } case float32, float64: if val := fieldValue.Float(); val != 0 { q = append(q, fmt.Sprintf("%s:%f", fieldName, val)) } case string: if val := strings.TrimSpace(strings.ReplaceAll(fieldValue.String(), "\"", "")); val != "" { if strings.Contains(val, " ") { q = append(q, fmt.Sprintf("%s:\"%s\"", fieldName, val)) } else { q = append(q, fmt.Sprintf("%s:%s", fieldName, val)) } } case bool: if val := fieldValue.Bool(); val { q = append(q, fmt.Sprintf("%s:%t", fieldName, fieldValue.Bool())) } default: log.Warnf("can't serialize value of type %s from form field %s", t, fieldName) } } } return strings.Join(q, " ") } func Unserialize(f SearchForm, q string) (result error) { var key, value []rune var escaped, isKeyValue bool f.SetQuery("") formValues := reflect.ValueOf(f).Elem() q = strings.TrimSpace(q) + "\n" var queryStrings []string for _, char := range q { if unicode.IsSpace(char) && !escaped { if isKeyValue { fieldName := strings.Title(string(key)) field := formValues.FieldByName(fieldName) stringValue := string(value) if field.CanSet() { switch field.Interface().(type) { case time.Time: if timeValue, err := dateparse.ParseAny(stringValue); err != nil { result = err } else { field.Set(reflect.ValueOf(timeValue)) } case float32, float64: if floatValue, err := strconv.ParseFloat(stringValue, 64); err != nil { result = err } else { field.SetFloat(floatValue) } case int, int8, int16, int32, int64: if intValue, err := strconv.Atoi(stringValue); err != nil { result = err } else { field.SetInt(int64(intValue)) } case uint, uint8, uint16, uint32, uint64: if intValue, err := strconv.Atoi(stringValue); err != nil { result = err } else { field.SetUint(uint64(intValue)) } case string: field.SetString(stringValue) case bool: field.SetBool(txt.Bool(stringValue)) default: result = fmt.Errorf("unsupported type: %s", fieldName) } } else { result = fmt.Errorf("unknown filter: %s", fieldName) } } else if len(strings.TrimSpace(string(key))) > 0 { queryStrings = append(queryStrings, strings.TrimSpace(string(key))) } escaped = false isKeyValue = false key = key[:0] value = value[:0] } else if char == ':' { isKeyValue = true } else if char == '"' { escaped = !escaped } else if isKeyValue { value = append(value, char) } else { key = append(key, unicode.ToLower(char)) } } if len(queryStrings) > 0 { f.SetQuery(strings.Join(queryStrings, " ")) } if result != nil { log.Errorf("error while parsing form values: %s", result) } return result }