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path: root/feed/v3attackvector.go
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package feed

//go:generate stringer -linecomment -type=V3AttackVector

import (
  "encoding/json"
  "fmt"
)

// CVSS v3 attack vector.
type V3AttackVector byte

const (
  V3AVAdjacentNetwork V3AttackVector = iota // ADJACENT_NETWORK
  V3AVNetwork // NETWORK
  V3AVLocal // LOCAL
  V3AVPhysical // PHYSICAL
)

// Unmarshal CVSS v3 attack vector from JSON.
func (me *V3AttackVector) UnmarshalJSON(b []byte) error {
  // decode string, check for error
  var s string
  if err := json.Unmarshal(b, &s); err != nil {
    return err
  }

  // check value
  switch s {
  case "ADJACENT_NETWORK":
    *me = V3AVAdjacentNetwork
  case "LOCAL":
    *me = V3AVLocal
  case "NETWORK":
    *me = V3AVNetwork
  case "PHYSICAL":
    *me = V3AVPhysical
  default:
    // return error
    return fmt.Errorf("unknown CVSS v3 attack vector: %s", s)
  }

  // return success
  return nil
}