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one_of.go
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one_of.go
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// Copyright 2023 Cisco Systems, Inc. and its affiliates
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
package validation
import (
"fmt"
"github.com/go-playground/validator/v10"
"reflect"
"regexp"
"strconv"
"strings"
"sync"
)
// CaseInsensitiveOneOf validator function that similar to validator.isOneOf but case-insensitive
func CaseInsensitiveOneOf() validator.Func {
return func(fl validator.FieldLevel) bool {
vals := parseOneOfParam2(fl.Param())
field := fl.Field()
var v string
switch field.Kind() {
case reflect.String:
v = field.String()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
v = strconv.FormatInt(field.Int(), 10)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
v = strconv.FormatUint(field.Uint(), 10)
default:
panic(fmt.Sprintf("Bad field type %T", field.Interface()))
}
for i := 0; i < len(vals); i++ {
if strings.EqualFold(vals[i], v) {
return true
}
}
return false
}
}
var splitParamsRegex = regexp.MustCompile(`'[^']*'|\S+`)
var oneofValsCache = map[string][]string{}
var oneofValsCacheRWLock = sync.RWMutex{}
func parseOneOfParam2(s string) []string {
oneofValsCacheRWLock.RLock()
vals, ok := oneofValsCache[s]
oneofValsCacheRWLock.RUnlock()
if !ok {
oneofValsCacheRWLock.Lock()
vals = splitParamsRegex.FindAllString(s, -1)
for i := 0; i < len(vals); i++ {
vals[i] = strings.Replace(vals[i], "'", "", -1)
}
oneofValsCache[s] = vals
oneofValsCacheRWLock.Unlock()
}
return vals
}