minio/pkg/bucket/policy/condition/name.go

125 lines
3.2 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package condition
import (
"encoding/json"
"fmt"
)
type name string
const (
stringEquals name = "StringEquals"
stringNotEquals = "StringNotEquals"
stringEqualsIgnoreCase = "StringEqualsIgnoreCase"
stringNotEqualsIgnoreCase = "StringNotEqualsIgnoreCase"
stringLike = "StringLike"
stringNotLike = "StringNotLike"
binaryEquals = "BinaryEquals"
ipAddress = "IpAddress"
notIPAddress = "NotIpAddress"
null = "Null"
boolean = "Bool"
numericEquals = "NumericEquals"
numericNotEquals = "NumericNotEquals"
numericLessThan = "NumericLessThan"
numericLessThanEquals = "NumericLessThanEquals"
numericGreaterThan = "NumericGreaterThan"
numericGreaterThanEquals = "NumericGreaterThanEquals"
dateEquals = "DateEquals"
dateNotEquals = "DateNotEquals"
dateLessThan = "DateLessThan"
dateLessThanEquals = "DateLessThanEquals"
dateGreaterThan = "DateGreaterThan"
dateGreaterThanEquals = "DateGreaterThanEquals"
)
var supportedConditions = []name{
stringEquals,
stringNotEquals,
stringEqualsIgnoreCase,
stringNotEqualsIgnoreCase,
binaryEquals,
stringLike,
stringNotLike,
ipAddress,
notIPAddress,
null,
boolean,
numericEquals,
numericNotEquals,
numericLessThan,
numericLessThanEquals,
numericGreaterThan,
numericGreaterThanEquals,
dateEquals,
dateNotEquals,
dateLessThan,
dateLessThanEquals,
dateGreaterThan,
dateGreaterThanEquals,
// Add new conditions here.
}
// IsValid - checks if name is valid or not.
func (n name) IsValid() bool {
for _, supn := range supportedConditions {
if n == supn {
return true
}
}
return false
}
// MarshalJSON - encodes name to JSON data.
func (n name) MarshalJSON() ([]byte, error) {
if !n.IsValid() {
return nil, fmt.Errorf("invalid name %v", n)
}
return json.Marshal(string(n))
}
// UnmarshalJSON - decodes JSON data to condition name.
func (n *name) UnmarshalJSON(data []byte) error {
var s string
if err := json.Unmarshal(data, &s); err != nil {
return err
}
parsedName, err := parseName(s)
if err != nil {
return err
}
*n = parsedName
return nil
}
func parseName(s string) (name, error) {
n := name(s)
if n.IsValid() {
return n, nil
}
return n, fmt.Errorf("invalid condition name '%v'", s)
}