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condition_cidr.go
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/
condition_cidr.go
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// Copyright © 2017 Aeneas Rekkas <aeneas+oss@aeneas.io>
//
// 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.
package ladon
import (
"net"
)
// CIDRCondition makes sure that the warden requests' IP address is in the given CIDR.
type CIDRCondition struct {
CIDR string `json:"cidr"`
}
// Fulfills returns true if the the request is fulfilled by the condition.
func (c *CIDRCondition) Fulfills(value interface{}, _ *Request) bool {
ips, ok := value.(string)
if !ok {
return false
}
_, cidrnet, err := net.ParseCIDR(c.CIDR)
if err != nil {
return false
}
ip := net.ParseIP(ips)
if ip == nil {
return false
}
return cidrnet.Contains(ip)
}
// GetName returns the condition's name.
func (c *CIDRCondition) GetName() string {
return "CIDRCondition"
}