forked from TrueCloudLab/frostfs-s3-gw
153 lines
4.1 KiB
Go
153 lines
4.1 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package condition
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import (
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"fmt"
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"net/http"
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"time"
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)
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func toDateLessThanFuncString(n name, key Key, value time.Time) string {
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return fmt.Sprintf("%v:%v:%v", n, key, value.Format(time.RFC3339))
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}
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// dateLessThanFunc - String equals function. It checks whether value by Key in given
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// values map is in condition values.
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// For example,
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// - if values = ["mybucket/foo"], at evaluate() it returns whether string
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// in value map for Key is in values.
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type dateLessThanFunc struct {
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k Key
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value time.Time
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}
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// evaluate() - evaluates to check whether value by Key in given values is in
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// condition values.
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func (f dateLessThanFunc) evaluate(values map[string][]string) bool {
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requestValue, ok := values[http.CanonicalHeaderKey(f.k.Name())]
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if !ok {
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requestValue = values[f.k.Name()]
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}
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if len(requestValue) == 0 {
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return false
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}
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t, err := time.Parse(time.RFC3339, requestValue[0])
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if err != nil {
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return false
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}
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return t.Before(f.value)
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}
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// key() - returns condition key which is used by this condition function.
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func (f dateLessThanFunc) key() Key {
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return f.k
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}
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// name() - returns "DateLessThan" condition name.
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func (f dateLessThanFunc) name() name {
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return dateLessThan
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}
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func (f dateLessThanFunc) String() string {
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return toDateLessThanFuncString(dateLessThan, f.k, f.value)
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}
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// toMap - returns map representation of this function.
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func (f dateLessThanFunc) toMap() map[Key]ValueSet {
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if !f.k.IsValid() {
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return nil
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}
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values := NewValueSet()
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values.Add(NewStringValue(f.value.Format(time.RFC3339)))
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return map[Key]ValueSet{
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f.k: values,
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}
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}
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// dateNotEqualsFunc - String not equals function. It checks whether value by Key in
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// given values is NOT in condition values.
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// For example,
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// - if values = ["mybucket/foo"], at evaluate() it returns whether string
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// in value map for Key is NOT in values.
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type dateLessThanEqualsFunc struct {
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dateLessThanFunc
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}
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// evaluate() - evaluates to check whether value by Key in given values is NOT in
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// condition values.
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func (f dateLessThanEqualsFunc) evaluate(values map[string][]string) bool {
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requestValue, ok := values[http.CanonicalHeaderKey(f.k.Name())]
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if !ok {
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requestValue = values[f.k.Name()]
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}
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if len(requestValue) == 0 {
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return false
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}
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t, err := time.Parse(time.RFC3339, requestValue[0])
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if err != nil {
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return false
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}
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return t.Before(f.value) || t.Equal(f.value)
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}
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// name() - returns "DateNotEquals" condition name.
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func (f dateLessThanEqualsFunc) name() name {
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return dateLessThanEquals
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}
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func (f dateLessThanEqualsFunc) String() string {
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return toDateLessThanFuncString(dateNotEquals, f.dateLessThanFunc.k, f.dateLessThanFunc.value)
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}
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// newDateLessThanFunc - returns new DateLessThan function.
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func newDateLessThanFunc(key Key, values ValueSet) (Function, error) {
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v, err := valueToTime(dateLessThan, values)
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if err != nil {
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return nil, err
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}
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return NewDateLessThanFunc(key, v)
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}
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// NewDateLessThanFunc - returns new DateLessThan function.
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func NewDateLessThanFunc(key Key, value time.Time) (Function, error) {
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return &dateLessThanFunc{key, value}, nil
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}
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// newDateNotEqualsFunc - returns new DateNotEquals function.
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func newDateLessThanEqualsFunc(key Key, values ValueSet) (Function, error) {
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v, err := valueToTime(dateNotEquals, values)
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if err != nil {
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return nil, err
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}
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return NewDateLessThanEqualsFunc(key, v)
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}
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// NewDateLessThanEqualsFunc - returns new DateNotEquals function.
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func NewDateLessThanEqualsFunc(key Key, value time.Time) (Function, error) {
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return &dateLessThanEqualsFunc{dateLessThanFunc{key, value}}, nil
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}
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