/
dns.go
192 lines (175 loc) · 4.03 KB
/
dns.go
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package etcd
import (
"github.com/coreos/etcd/client"
"mtime.com/corednsUI/g"
"mtime.com/corednsUI/util"
"mtime.com/corednsUI/model"
//"mtime.com/corednsUI/controller"
"fmt"
"os"
"context"
"strings"
"github.com/patrickmn/go-cache"
)
var(
kapi client.KeysAPI
EtcdDao = &etcddao{}
NewMessage = make(chan []*model.Dns,1)
)
func OninitCheck() {
c, err := client.New(client.Config{
Endpoints: g.Etcd_url,
Transport: client.DefaultTransport,
})
if err != nil {
fmt.Print(err)
os.Exit(1)
}
kapi = client.NewKeysAPI(c)
_,err = kapi.Get(context.Background(),g.Etcd_path,&client.GetOptions{})
//fmt.Println(rep.Node.Value)
//_, err = kapi.Set(context.Background(),ippath, "0",&client.SetOptions{PrevExist:client.PrevExist,PrevValue:"0",Dir:false})
if err != nil {
fmt.Print(err)
os.Exit(1)
}
}
type etcddao struct {
}
func (this *etcddao) DnsList() []*model.Dns{
result,found :=g.Mycache.Get(g.Cache_Name)
if found{
return result.([]*model.Dns)
}else{
fmt.Println(33300000)
mymap ,err :=etcdList()
if err !=nil{
return nil
}
result :=make([]*model.Dns,0,len(mymap))
for k,v :=range mymap{
result=append(result, util.Etcdkey2Host(k,v))
}
return result
}
}
func etcdALL()[]*model.Dns{
mymap ,err :=etcdList()
if err !=nil{
return nil
}
result :=make([]*model.Dns,0,len(mymap))
for k,v :=range mymap{
result=append(result, util.Etcdkey2Host(k,v))
}
g.Mycache.Set(g.Cache_Name,result,cache.DefaultExpiration)
return result
}
func (this *etcddao) DnsAdd(key,value string) (bool,error){
return etcdAdd(key,value)
}
func (this *etcddao) DnsDel(key string) error{
return etcdDel(key)
}
func (this *etcddao) DnsEdit(key,value string) error{
return etcdEdit(key,value)
}
func (this *etcddao) DnsGet(key string) (*model.Dns,error) {
node,err := etcdGet(key)
if err != nil{
return nil,err
}
return util.Etcdkey2Host(node.Key,node.Value),nil
}
func etcdGetmap(node *client.Node,mymap map[string]string){
if node.Dir{
for _,x :=range node.Nodes{
if x.Dir {
resp,err := kapi.Get(context.Background(),x.Key,&client.GetOptions{})
if err != nil {
continue
}
etcdGetmap(resp.Node,mymap)
}else{
mymap[x.Key]=x.Value
}
}
} else{
mymap[node.Key]=node.Value
}
}
func etcdList()(map[string]string,error){
node,err := etcdGet(g.Etcd_path)
if err != nil{
return nil,err
}
result :=make(map[string]string,10000)
etcdGetmap(node,result)
return result,nil
}
func etcdGet(key string) (*client.Node,error){
resp,err := kapi.Get(context.Background(),key,&client.GetOptions{})
if err != nil {
return nil,err
}
return resp.Node,nil
}
func etcdAdd(key,value string) (bool,error){
keylist := strings.Split(key,".")
util.Reverse(keylist)
prekey :=strings.Join(keylist,"/")
if !strings.HasPrefix(prekey,"/"){
prekey="/"+prekey
}
key=g.Etcd_path+prekey
_, err := kapi.Set(context.Background(),key,value,&client.SetOptions{PrevExist:client.PrevNoExist,Dir:false})
if err != nil {
if e,ok := err.(client.Error);ok{
if e.Code == client.ErrorCodeNodeExist{
return false,fmt.Errorf("数据已经存在!")
}
}
return false,err
}
return true,nil
}
func etcdDel(key string) error{
fmt.Println(key)
_,err := kapi.Delete(context.Background(),key,&client.DeleteOptions{Recursive:true})
if err != nil{
fmt.Println(key,err)
return err
}
return nil
}
func etcdEdit(key,value string) error{
_, err := kapi.Set(context.Background(),key, value,&client.SetOptions{PrevExist:client.PrevExist,Dir:false})
if err != nil{
return err
}
return nil
}
func WatchEtcd(){
watcher := kapi.Watcher(g.Etcd_path,&client.WatcherOptions{Recursive: true})
fmt.Println(122222)
for{
select {
case <- g.Exit:
break
default:
}
res,err := watcher.Next(context.Background())
if err != nil{
continue
}
if res.Action == "expire"{
continue
}else if res.Action =="set" || res.Action == "update" || res.Action == "create" || res.Action == "delete"{
fmt.Println(res.Action)
result:=etcdALL()
if result !=nil{
NewMessage <- result
}
}
}
}