coredns/middleware/dnssec/setup.go
Miek Gieben 2dd8a687b3 Startup notification (#250)
Stop the caddy message and start our own init notifications.
Log the version of CoreDNS when starting up.
Fix all middleware's setup functions so that return the error prefixed
with *which* middleware was failing; leads to better debuggable errors
when starting up.
2016-09-10 09:16:25 +01:00

91 lines
1.7 KiB
Go

package dnssec
import (
"strings"
"github.com/miekg/coredns/core/dnsserver"
"github.com/miekg/coredns/middleware"
"github.com/mholt/caddy"
)
func init() {
caddy.RegisterPlugin("dnssec", caddy.Plugin{
ServerType: "dns",
Action: setup,
})
}
func setup(c *caddy.Controller) error {
zones, keys, err := dnssecParse(c)
if err != nil {
return middleware.Error("dnssec", err)
}
dnsserver.GetConfig(c).AddMiddleware(func(next dnsserver.Handler) dnsserver.Handler {
return New(zones, keys, next)
})
return nil
}
func dnssecParse(c *caddy.Controller) ([]string, []*DNSKEY, error) {
zones := []string{}
keys := []*DNSKEY{}
for c.Next() {
if c.Val() == "dnssec" {
// dnssec [zones...]
zones = make([]string, len(c.ServerBlockKeys))
copy(zones, c.ServerBlockKeys)
args := c.RemainingArgs()
if len(args) > 0 {
zones = args
}
for c.NextBlock() {
k, e := keyParse(c)
if e != nil {
return nil, nil, e
}
keys = append(keys, k...)
}
}
}
for i, _ := range zones {
zones[i] = middleware.Host(zones[i]).Normalize()
}
return zones, keys, nil
}
func keyParse(c *caddy.Controller) ([]*DNSKEY, error) {
keys := []*DNSKEY{}
what := c.Val()
if !c.NextArg() {
return nil, c.ArgErr()
}
value := c.Val()
switch what {
case "key":
if value == "file" {
ks := c.RemainingArgs()
for _, k := range ks {
base := k
// Kmiek.nl.+013+26205.key, handle .private or without extension: Kmiek.nl.+013+26205
if strings.HasSuffix(k, ".key") {
base = k[:len(k)-4]
}
if strings.HasSuffix(k, ".private") {
base = k[:len(k)-8]
}
k, err := ParseKeyFile(base+".key", base+".private")
if err != nil {
return nil, err
}
keys = append(keys, k)
}
}
}
return keys, nil
}