mirror of https://github.com/containers/podman.git
115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
package util
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import (
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"errors"
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"fmt"
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"net/url"
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"reflect"
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"strconv"
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"strings"
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jsoniter "github.com/json-iterator/go"
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)
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func IsSimpleType(f reflect.Value) bool {
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if _, ok := f.Interface().(fmt.Stringer); ok {
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return true
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}
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switch f.Kind() {
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case reflect.Bool, reflect.Int, reflect.Int64, reflect.Uint, reflect.Uint64, reflect.String:
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return true
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}
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return false
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}
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func SimpleTypeToParam(f reflect.Value) string {
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if s, ok := f.Interface().(fmt.Stringer); ok {
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return s.String()
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}
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switch f.Kind() {
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case reflect.Bool:
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return strconv.FormatBool(f.Bool())
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case reflect.Int, reflect.Int64:
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// f.Int() is always an int64
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return strconv.FormatInt(f.Int(), 10)
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case reflect.Uint, reflect.Uint64:
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// f.Uint() is always an uint64
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return strconv.FormatUint(f.Uint(), 10)
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case reflect.String:
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return f.String()
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}
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panic("the input parameter is not a simple type")
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}
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func Changed(o interface{}, fieldName string) bool {
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r := reflect.ValueOf(o)
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value := reflect.Indirect(r).FieldByName(fieldName)
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return !value.IsNil()
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}
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func ToParams(o interface{}) (url.Values, error) {
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params := url.Values{}
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if o == nil || reflect.ValueOf(o).IsNil() {
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return params, nil
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}
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json := jsoniter.ConfigCompatibleWithStandardLibrary
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s := reflect.ValueOf(o)
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if reflect.Ptr == s.Kind() {
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s = s.Elem()
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}
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sType := s.Type()
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for i := 0; i < s.NumField(); i++ {
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fieldName := sType.Field(i).Name
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if !Changed(o, fieldName) {
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continue
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}
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fieldName = strings.ToLower(fieldName)
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f := s.Field(i)
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if reflect.Ptr == f.Kind() {
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f = f.Elem()
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}
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paramName := fieldName
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if pn, ok := sType.Field(i).Tag.Lookup("schema"); ok {
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paramName = pn
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}
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switch {
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case IsSimpleType(f):
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params.Set(paramName, SimpleTypeToParam(f))
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case f.Kind() == reflect.Slice:
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for i := 0; i < f.Len(); i++ {
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elem := f.Index(i)
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if IsSimpleType(elem) {
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params.Add(paramName, SimpleTypeToParam(elem))
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} else {
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return nil, errors.New("slices must contain only simple types")
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}
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}
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case f.Kind() == reflect.Map:
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lowerCaseKeys := make(map[string]interface{})
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iter := f.MapRange()
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for iter.Next() {
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lowerCaseKeys[iter.Key().Interface().(string)] = iter.Value().Interface()
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}
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s, err := json.MarshalToString(lowerCaseKeys)
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if err != nil {
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return nil, err
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}
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params.Set(paramName, s)
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}
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}
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return params, nil
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}
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func MapToArrayString(data map[string]string) []string {
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l := make([]string, 0)
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for k, v := range data {
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l = append(l, k+"="+v)
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}
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return l
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}
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