58387afd5d
* Replace go-cache with golang-lru This fix replace go-cache with golang-lru, as is specified in 335. Signed-off-by: Yong Tang <yong.tang.github@outlook.com> * Move cache initialization to setup This commit move cache initialization to setup in dnssec middleware. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
96 lines
1.9 KiB
Go
96 lines
1.9 KiB
Go
package dnssec
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import (
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"strings"
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"github.com/miekg/coredns/core/dnsserver"
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"github.com/miekg/coredns/middleware"
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"github.com/hashicorp/golang-lru"
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"github.com/mholt/caddy"
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)
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func init() {
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caddy.RegisterPlugin("dnssec", caddy.Plugin{
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ServerType: "dns",
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Action: setup,
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})
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}
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func setup(c *caddy.Controller) error {
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zones, keys, err := dnssecParse(c)
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if err != nil {
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return middleware.Error("dnssec", err)
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}
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cache, err := lru.New(defaultCap)
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if err != nil {
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return err
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}
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dnsserver.GetConfig(c).AddMiddleware(func(next middleware.Handler) middleware.Handler {
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return New(zones, keys, next, cache)
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})
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return nil
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}
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func dnssecParse(c *caddy.Controller) ([]string, []*DNSKEY, error) {
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zones := []string{}
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keys := []*DNSKEY{}
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for c.Next() {
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if c.Val() == "dnssec" {
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// dnssec [zones...]
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zones = make([]string, len(c.ServerBlockKeys))
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copy(zones, c.ServerBlockKeys)
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args := c.RemainingArgs()
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if len(args) > 0 {
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zones = args
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}
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for c.NextBlock() {
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k, e := keyParse(c)
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if e != nil {
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return nil, nil, e
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}
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keys = append(keys, k...)
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}
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}
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}
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for i := range zones {
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zones[i] = middleware.Host(zones[i]).Normalize()
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}
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return zones, keys, nil
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}
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func keyParse(c *caddy.Controller) ([]*DNSKEY, error) {
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keys := []*DNSKEY{}
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what := c.Val()
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if !c.NextArg() {
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return nil, c.ArgErr()
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}
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value := c.Val()
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switch what {
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case "key":
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if value == "file" {
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ks := c.RemainingArgs()
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for _, k := range ks {
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base := k
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// Kmiek.nl.+013+26205.key, handle .private or without extension: Kmiek.nl.+013+26205
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if strings.HasSuffix(k, ".key") {
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base = k[:len(k)-4]
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}
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if strings.HasSuffix(k, ".private") {
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base = k[:len(k)-8]
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}
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k, err := ParseKeyFile(base+".key", base+".private")
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if err != nil {
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return nil, err
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}
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keys = append(keys, k)
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}
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}
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}
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return keys, nil
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}
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