/
validator.go
99 lines (92 loc) · 2.9 KB
/
validator.go
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//
// MIT License
//
// (C) Copyright 2022 Hewlett Packard Enterprise Development LP
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
package utils
import (
"fmt"
"regexp"
)
type Validator struct {
}
// NewValidator creates a new environment
func NewValidator() Validator {
return Validator{}
}
func (validator Validator) ValidateHostnames(hostnames []string) error {
var firstHostname = hostnames[0]
isWorker, err := regexp.Match(`^ncn-w[0-9]*$`, []byte(firstHostname))
if err != nil {
return err
}
if isWorker {
return validator.ValidateWorkerHostnames(hostnames)
}
isStorage, err := regexp.Match(`^ncn-s[0-9]*$`, []byte(firstHostname))
if err != nil {
return err
}
if isStorage {
return validator.ValidateStorageHostnames(hostnames)
}
return fmt.Errorf("invalid worker or storage hostname: %s", firstHostname)
}
func (validator Validator) ValidateWorkerHostnames(hostnames []string) error {
for _, hostname := range hostnames {
isValid, err := regexp.Match(`^ncn-w[0-9]*$`, []byte(hostname))
if err != nil {
return err
}
if !isValid {
isStorage, err := regexp.Match(`^ncn-s[0-9]*$`, []byte(hostname))
if err != nil {
return err
}
if isStorage {
return fmt.Errorf("Cannot have both storage and worker node hostnames")
} else {
return fmt.Errorf("Invalid worker hostname: %s", hostname)
}
}
}
return nil
}
func (validator Validator) ValidateStorageHostnames(hostnames []string) error {
for _, hostname := range hostnames {
isValid, err := regexp.Match(`^ncn-s[0-9]*$`, []byte(hostname))
if err != nil {
return err
}
if !isValid {
isWorker, err := regexp.Match(`^ncn-w[0-9]*$`, []byte(hostname))
if err != nil {
return err
}
if isWorker {
return fmt.Errorf("Cannot have both storage and worker node hostnames")
} else {
return fmt.Errorf("Invalid storage hostname: %s", hostname)
}
}
}
return nil
}