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package setup
import (
"github.com/miekg/coredns/middleware"
"github.com/miekg/coredns/middleware/chaos"
)
// Chaos configures a new Chaos middleware instance.
func Chaos(c *Controller) (middleware.Middleware, error) {
version, authors, err := chaosParse(c)
if err != nil {
return nil, err
}
return func(next middleware.Handler) middleware.Handler {
return chaos.Chaos{
Next: next,
Version: version,
Authors: authors,
}
}, nil
}
func chaosParse(c *Controller) (string, map[string]bool, error) {
version := ""
authors := make(map[string]bool)
for c.Next() {
args := c.RemainingArgs()
if len(args) == 0 {
return defaultVersion, nil, nil
}
if len(args) == 1 {
return args[0], nil, nil
}
version = args[0]
for _, a := range args[1:] {
authors[a] = true
}
return version, authors, nil
}
return version, authors, nil
}
const defaultVersion = "CoreDNS"
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