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	* add switch for manage dns * manage DNS sync publish * add dns sync api * add manageDNS field in peerUpdate * add default dns for extClent if manage dns enabled * add DEFAULT_DOMAIN for internal DNS lookup * move DNSSync to peerUpdate * fix empty host in network issue * sync up dns when custom dns add/delete * fix custom DNS ip4/ipv6 validator issue
		
			
				
	
	
		
			314 lines
		
	
	
	
		
			9.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			314 lines
		
	
	
	
		
			9.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package controller
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| 
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| import (
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| 	"encoding/json"
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| 	"errors"
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| 	"fmt"
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| 	"net/http"
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| 
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| 	"github.com/gorilla/mux"
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| 	"github.com/gravitl/netmaker/database"
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| 	"github.com/gravitl/netmaker/logger"
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| 	"github.com/gravitl/netmaker/logic"
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| 	"github.com/gravitl/netmaker/models"
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| 	"github.com/gravitl/netmaker/mq"
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| 	"github.com/gravitl/netmaker/servercfg"
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| )
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| 
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| func dnsHandlers(r *mux.Router) {
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| 
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| 	r.HandleFunc("/api/dns", logic.SecurityCheck(true, http.HandlerFunc(getAllDNS))).
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| 		Methods(http.MethodGet)
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| 	r.HandleFunc("/api/dns/adm/{network}/nodes", logic.SecurityCheck(true, http.HandlerFunc(getNodeDNS))).
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| 		Methods(http.MethodGet)
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| 	r.HandleFunc("/api/dns/adm/{network}/custom", logic.SecurityCheck(true, http.HandlerFunc(getCustomDNS))).
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| 		Methods(http.MethodGet)
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| 	r.HandleFunc("/api/dns/adm/{network}", logic.SecurityCheck(true, http.HandlerFunc(getDNS))).
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| 		Methods(http.MethodGet)
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| 	r.HandleFunc("/api/dns/adm/{network}/sync", logic.SecurityCheck(true, http.HandlerFunc(syncDNS))).
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| 		Methods(http.MethodPost)
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| 	r.HandleFunc("/api/dns/{network}", logic.SecurityCheck(true, http.HandlerFunc(createDNS))).
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| 		Methods(http.MethodPost)
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| 	r.HandleFunc("/api/dns/adm/pushdns", logic.SecurityCheck(true, http.HandlerFunc(pushDNS))).
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| 		Methods(http.MethodPost)
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| 	r.HandleFunc("/api/dns/{network}/{domain}", logic.SecurityCheck(true, http.HandlerFunc(deleteDNS))).
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| 		Methods(http.MethodDelete)
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| }
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| 
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| // @Summary     Gets node DNS entries associated with a network
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| // @Router      /api/dns/{network} [get]
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| // @Tags        DNS
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| // @Accept      json
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| // @Param       network path string true "Network identifier"
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| // @Success     200 {array} models.DNSEntry
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| // @Failure     500 {object} models.ErrorResponse
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| func getNodeDNS(w http.ResponseWriter, r *http.Request) {
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| 
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| 	w.Header().Set("Content-Type", "application/json")
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| 
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| 	var dns []models.DNSEntry
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| 	var params = mux.Vars(r)
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| 	network := params["network"]
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| 	dns, err := logic.GetNodeDNS(network)
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("failed to get node DNS entries for network [%s]: %v", network, err))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	w.WriteHeader(http.StatusOK)
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| 	json.NewEncoder(w).Encode(dns)
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| }
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| 
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| // @Summary     Get all DNS entries
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| // @Router      /api/dns [get]
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| // @Tags        DNS
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| // @Accept      json
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| // @Success     200 {array} models.DNSEntry
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| // @Failure     500 {object} models.ErrorResponse
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| func getAllDNS(w http.ResponseWriter, r *http.Request) {
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| 	w.Header().Set("Content-Type", "application/json")
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| 	dns, err := logic.GetAllDNS()
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"), "failed to get all DNS entries: ", err.Error())
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	logic.SortDNSEntrys(dns[:])
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| 	w.WriteHeader(http.StatusOK)
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| 	json.NewEncoder(w).Encode(dns)
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| }
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| 
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| // @Summary     Gets custom DNS entries associated with a network
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| // @Router      /api/dns/adm/{network}/custom [get]
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| // @Tags        DNS
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| // @Accept      json
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| // @Param       network path string true "Network identifier"
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| // @Success     200 {array} models.DNSEntry
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| // @Failure     500 {object} models.ErrorResponse
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| func getCustomDNS(w http.ResponseWriter, r *http.Request) {
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| 
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| 	w.Header().Set("Content-Type", "application/json")
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| 
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| 	var dns []models.DNSEntry
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| 	var params = mux.Vars(r)
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| 	network := params["network"]
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| 	dns, err := logic.GetCustomDNS(network)
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| 	if err != nil {
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| 		logger.Log(
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| 			0,
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| 			r.Header.Get("user"),
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| 			fmt.Sprintf(
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| 				"failed to get custom DNS entries for network [%s]: %v",
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| 				network,
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| 				err.Error(),
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| 			),
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| 		)
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	w.WriteHeader(http.StatusOK)
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| 	json.NewEncoder(w).Encode(dns)
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| }
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| 
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| // @Summary     Get all DNS entries associated with the network
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| // @Router      /api/dns/adm/{network} [get]
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| // @Tags        DNS
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| // @Accept      json
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| // @Param       network path string true "Network identifier"
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| // @Success     200 {array} models.DNSEntry
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| // @Failure     500 {object} models.ErrorResponse
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| func getDNS(w http.ResponseWriter, r *http.Request) {
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| 
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| 	w.Header().Set("Content-Type", "application/json")
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| 
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| 	var dns []models.DNSEntry
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| 	var params = mux.Vars(r)
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| 	network := params["network"]
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| 	dns, err := logic.GetDNS(network)
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("failed to get all DNS entries for network [%s]: %v", network, err.Error()))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	w.WriteHeader(http.StatusOK)
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| 	json.NewEncoder(w).Encode(dns)
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| }
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| 
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| // @Summary     Create a new DNS entry
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| // @Router      /api/dns/adm/{network} [post]
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| // @Tags        DNS
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| // @Accept      json
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| // @Param       network path string true "Network identifier"
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| // @Param       body body models.DNSEntry true "DNS entry details"
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| // @Success     200 {object} models.DNSEntry
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| // @Failure     400 {object} models.ErrorResponse
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| // @Failure     500 {object} models.ErrorResponse
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| func createDNS(w http.ResponseWriter, r *http.Request) {
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| 	w.Header().Set("Content-Type", "application/json")
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| 
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| 	var entry models.DNSEntry
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| 	var params = mux.Vars(r)
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| 	netID := params["network"]
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| 
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| 	_ = json.NewDecoder(r.Body).Decode(&entry)
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| 	entry.Network = params["network"]
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| 
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| 	err := logic.ValidateDNSCreate(entry)
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("invalid DNS entry %+v: %v", entry, err))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "badrequest"))
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| 		return
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| 	}
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| 
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| 	entry, err = logic.CreateDNS(entry)
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("Failed to create DNS entry %+v: %v", entry, err))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	if servercfg.IsDNSMode() {
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| 		err = logic.SetDNS()
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| 		if err != nil {
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| 			logger.Log(0, r.Header.Get("user"),
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| 				fmt.Sprintf("Failed to set DNS entries on file: %v", err))
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| 			logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 			return
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| 		}
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| 	}
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| 
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| 	if servercfg.GetManageDNS() {
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| 		mq.SendDNSSyncByNetwork(netID)
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| 	}
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| 
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| 	logger.Log(1, "new DNS record added:", entry.Name)
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| 	logger.Log(2, r.Header.Get("user"),
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| 		fmt.Sprintf("DNS entry is set: %+v", entry))
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| 	w.WriteHeader(http.StatusOK)
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| 	json.NewEncoder(w).Encode(entry)
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| }
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| 
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| // @Summary     Delete a DNS entry
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| // @Router      /api/dns/{network}/{domain} [delete]
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| // @Tags        DNS
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| // @Accept      json
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| // @Param       network path string true "Network identifier"
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| // @Param       domain path string true "Domain Name"
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| // @Success     200 {array} models.DNSEntry
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| // @Failure     500 {object} models.ErrorResponse
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| func deleteDNS(w http.ResponseWriter, r *http.Request) {
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| 	// Set header
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| 	w.Header().Set("Content-Type", "application/json")
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| 
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| 	// get params
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| 	var params = mux.Vars(r)
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| 	netID := params["network"]
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| 	entrytext := params["domain"] + "." + params["network"]
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| 	err := logic.DeleteDNS(params["domain"], params["network"])
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| 
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| 	if err != nil {
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| 		logger.Log(0, "failed to delete dns entry: ", entrytext)
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	logger.Log(1, "deleted dns entry: ", entrytext)
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| 	if servercfg.IsDNSMode() {
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| 		err = logic.SetDNS()
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| 		if err != nil {
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| 			logger.Log(0, r.Header.Get("user"),
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| 				fmt.Sprintf("Failed to set DNS entries on file: %v", err))
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| 			logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 			return
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| 		}
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| 	}
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| 
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| 	if servercfg.GetManageDNS() {
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| 		mq.SendDNSSyncByNetwork(netID)
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| 	}
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| 
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| 	json.NewEncoder(w).Encode(entrytext + " deleted.")
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| 
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| }
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| 
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| // GetDNSEntry - gets a DNS entry
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| func GetDNSEntry(domain string, network string) (models.DNSEntry, error) {
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| 	var entry models.DNSEntry
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| 	key, err := logic.GetRecordKey(domain, network)
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| 	if err != nil {
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| 		return entry, err
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| 	}
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| 	record, err := database.FetchRecord(database.DNS_TABLE_NAME, key)
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| 	if err != nil {
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| 		return entry, err
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| 	}
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| 	err = json.Unmarshal([]byte(record), &entry)
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| 	return entry, err
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| }
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| 
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| // @Summary     Push DNS entries to nameserver
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| // @Router      /api/dns/adm/pushdns [post]
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| // @Tags        DNS
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| // @Accept      json
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| // @Success     200 {string} string "DNS Pushed to CoreDNS"
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| // @Failure     400 {object} models.ErrorResponse
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| // @Failure     500 {object} models.ErrorResponse
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| func pushDNS(w http.ResponseWriter, r *http.Request) {
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| 	// Set header
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| 	w.Header().Set("Content-Type", "application/json")
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| 	if !servercfg.IsDNSMode() {
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| 		logic.ReturnErrorResponse(
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| 			w,
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| 			r,
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| 			logic.FormatError(errors.New("DNS Mode is set to off"), "badrequest"),
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| 		)
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| 		return
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| 	}
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| 	err := logic.SetDNS()
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| 
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("Failed to set DNS entries on file: %v", err))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	logger.Log(1, r.Header.Get("user"), "pushed DNS updates to nameserver")
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| 	json.NewEncoder(w).Encode("DNS Pushed to CoreDNS")
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| }
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| 
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| // @Summary     Sync DNS entries for a given network
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| // @Router      /api/dns/adm/{network}/sync [post]
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| // @Tags        DNS
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| // @Accept      json
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| // @Success     200 {string} string "DNS Sync completed successfully"
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| // @Failure     400 {object} models.ErrorResponse
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| // @Failure     500 {object} models.ErrorResponse
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| func syncDNS(w http.ResponseWriter, r *http.Request) {
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| 	// Set header
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| 	w.Header().Set("Content-Type", "application/json")
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| 	if !servercfg.GetManageDNS() {
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| 		logic.ReturnErrorResponse(
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| 			w,
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| 			r,
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| 			logic.FormatError(errors.New("manage DNS is set to false"), "badrequest"),
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| 		)
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| 		return
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| 	}
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| 	var params = mux.Vars(r)
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| 	netID := params["network"]
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| 	k, err := logic.GetDNS(netID)
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| 	if err == nil && len(k) > 0 {
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| 		err = mq.PushSyncDNS(k)
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| 	}
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| 
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| 	if err != nil {
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| 		logger.Log(0, r.Header.Get("user"),
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| 			fmt.Sprintf("Failed to Sync DNS entries to network %s: %v", netID, err))
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| 		logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
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| 		return
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| 	}
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| 	logger.Log(1, r.Header.Get("user"), "DNS Sync complelted successfully")
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| 	json.NewEncoder(w).Encode("DNS Sync completed successfully")
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| }
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