61 lines
910 B
Go
61 lines
910 B
Go
package main
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import (
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"fmt"
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"time"
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"github.com/miekg/dns"
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"crypto/md5"
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)
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type KeyNotFound struct {
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key string
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}
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func (e KeyNotFound) Error() string {
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return e.key + " " + "not found"
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}
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type KeyExpired struct {
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Key string
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}
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func (e KeyExpired) Error() string {
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return e.Key + " " + "expired"
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}
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type CacheIsFull struct {
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}
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func (e CacheIsFull) Error() string {
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return "Cache is Full"
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}
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type SerializerError struct {
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err error
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}
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func (e SerializerError) Error() string {
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return fmt.Sprintf("Serializer error: got %v", e.err)
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}
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type Mesg struct {
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Msg *dns.Msg
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Expire time.Time
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}
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type Cache interface {
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Get(key string) (Msg *dns.Msg, err error)
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Set(key string, Msg *dns.Msg) error
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Exists(key string) bool
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Remove(key string) error
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Full() bool
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}
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func KeyGen(q Question) string {
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h := md5.New()
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h.Write([]byte(q.String()))
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x := h.Sum(nil)
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key := fmt.Sprintf("%x", x)
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return key
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} |