/
setup.go
55 lines (40 loc) · 879 Bytes
/
setup.go
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package blocker
import (
"github.com/coredns/caddy"
"github.com/coredns/coredns/core/dnsserver"
"github.com/coredns/coredns/plugin"
)
func init() {
plugin.Register("blocker", setup)
}
func setup(c *caddy.Controller) error {
blocker, err := fileParse(c)
if err != nil {
return plugin.Error("blocker", err)
}
dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
blocker.Next = next
return blocker
})
return nil
}
func fileParse(c *caddy.Controller) (*Blocker, error) {
var file string
for c.Next() {
if !c.NextArg() {
return nil, c.ArgErr()
}
if file != "" {
return nil, c.Errf("multiple files are not supported")
}
file = c.Val()
if len(c.RemainingArgs()) != 0 {
return nil, c.ArgErr()
}
}
blocker, err := newBlocker(file)
if err != nil {
return nil, c.Err(err.Error())
}
return blocker, nil
}