netmaker/controllers/hosts.go
2023-01-24 11:26:52 +05:30

307 lines
10 KiB
Go

package controller
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"reflect"
"github.com/gorilla/mux"
"github.com/gravitl/netmaker/logger"
"github.com/gravitl/netmaker/logic"
"github.com/gravitl/netmaker/models"
"github.com/gravitl/netmaker/mq"
)
type hostNetworksUpdatePayload struct {
Networks []string `json:"networks"`
}
func hostHandlers(r *mux.Router) {
r.HandleFunc("/api/hosts", logic.SecurityCheck(true, http.HandlerFunc(getHosts))).Methods(http.MethodGet)
r.HandleFunc("/api/hosts/{hostid}", logic.SecurityCheck(true, http.HandlerFunc(updateHost))).Methods(http.MethodPut)
r.HandleFunc("/api/hosts/{hostid}", logic.SecurityCheck(true, http.HandlerFunc(deleteHost))).Methods(http.MethodDelete)
r.HandleFunc("/api/hosts/{hostid}/networks/{network}", logic.SecurityCheck(true, http.HandlerFunc(addHostToNetwork))).Methods(http.MethodPost)
r.HandleFunc("/api/hosts/{hostid}/networks/{network}", logic.SecurityCheck(true, http.HandlerFunc(deleteHostFromNetwork))).Methods(http.MethodDelete)
r.HandleFunc("/api/hosts/{hostid}/relay", logic.SecurityCheck(false, http.HandlerFunc(createHostRelay))).Methods(http.MethodPost)
r.HandleFunc("/api/hosts/{hostid}/relay", logic.SecurityCheck(false, http.HandlerFunc(deleteHostRelay))).Methods(http.MethodDelete)
}
// swagger:route GET /api/hosts hosts getHosts
//
// Lists all hosts.
//
// Schemes: https
//
// Security:
// oauth
//
// Responses:
// 200: getHostsSliceResponse
func getHosts(w http.ResponseWriter, r *http.Request) {
currentHosts, err := logic.GetAllHosts()
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to fetch hosts: ", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
// return JSON/API formatted hosts
apiHosts := logic.GetAllHostsAPI(currentHosts[:])
logger.Log(2, r.Header.Get("user"), "fetched all hosts")
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(apiHosts)
}
// swagger:route PUT /api/hosts/{hostid} hosts updateHost
//
// Updates a Netclient host on Netmaker server.
//
// Schemes: https
//
// Security:
// oauth
//
// Responses:
// 200: updateHostResponse
func updateHost(w http.ResponseWriter, r *http.Request) {
var newHostData models.ApiHost
err := json.NewDecoder(r.Body).Decode(&newHostData)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update a host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
// confirm host exists
currHost, err := logic.GetHost(newHostData.ID)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update a host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
newHost := newHostData.ConvertAPIHostToNMHost(currHost)
// check if relay information is changed
updateRelay := false
if newHost.IsRelay && len(newHost.RelayedHosts) > 0 {
if len(newHost.RelayedHosts) != len(currHost.RelayedHosts) || !reflect.DeepEqual(newHost.RelayedHosts, currHost.RelayedHosts) {
updateRelay = true
}
}
logic.UpdateHost(newHost, currHost) // update the in memory struct values
if err = logic.UpsertHost(newHost); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update a host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
if updateRelay {
logic.UpdateHostRelay(currHost.ID.String(), currHost.RelayedHosts, newHost.RelayedHosts)
}
newNetworks := logic.GetHostNetworks(newHost.ID.String())
if len(newNetworks) > 0 {
if err = mq.ModifyClient(&mq.MqClient{
ID: currHost.ID.String(),
Text: currHost.Name,
Networks: newNetworks,
}); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update host networks roles in DynSec:", err.Error())
}
}
// publish host update through MQ
if err := mq.HostUpdate(&models.HostUpdate{
Action: models.UpdateHost,
Host: *newHost,
}); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to send host update: ", currHost.ID.String(), err.Error())
}
go func() {
if err := mq.PublishPeerUpdate(); err != nil {
logger.Log(0, "fail to publish peer update: ", err.Error())
}
}()
apiHostData := newHost.ConvertNMHostToAPI()
logger.Log(2, r.Header.Get("user"), "updated host", newHost.ID.String())
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(apiHostData)
}
// swagger:route DELETE /api/hosts/{hostid} hosts deleteHost
//
// Deletes a Netclient host from Netmaker server.
//
// Schemes: https
//
// Security:
// oauth
//
// Responses:
// 200: deleteHostResponse
func deleteHost(w http.ResponseWriter, r *http.Request) {
var params = mux.Vars(r)
hostid := params["hostid"]
// confirm host exists
currHost, err := logic.GetHost(hostid)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to delete a host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
if currHost.IsRelay {
if _, _, err := logic.DeleteHostRelay(hostid); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to dissociate host from relays:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
}
if currHost.IsRelayed {
relayHost, err := logic.GetHost(currHost.RelayedBy)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to fetch relay host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
newRelayedHosts := make([]string, 0)
for _, relayedHostID := range relayHost.RelayedHosts {
if relayedHostID != hostid {
newRelayedHosts = append(newRelayedHosts, relayedHostID)
}
}
relayHost.RelayedHosts = newRelayedHosts
if err := logic.UpsertHost(relayHost); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update host relays:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
}
if err = logic.RemoveHost(currHost); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to delete a host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
if err = mq.HostUpdate(&models.HostUpdate{
Action: models.DeleteHost,
Host: *currHost,
}); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to send delete host update: ", currHost.ID.String(), err.Error())
}
if err = mq.DeleteMqClient(currHost.ID.String()); err != nil {
logger.Log(0, "error removing DynSec credentials for host:", currHost.Name, err.Error())
}
apiHostData := currHost.ConvertNMHostToAPI()
logger.Log(2, r.Header.Get("user"), "removed host", currHost.Name)
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(apiHostData)
}
// swagger:route POST /api/hosts/{hostid}/networks/{network} hosts addHostToNetwork
//
// Given a network, a host is added to the network.
//
// Schemes: https
//
// Security:
// oauth
//
// Responses:
// 200: addHostToNetworkResponse
func addHostToNetwork(w http.ResponseWriter, r *http.Request) {
var params = mux.Vars(r)
hostid := params["hostid"]
network := params["network"]
if hostid == "" || network == "" {
logic.ReturnErrorResponse(w, r, logic.FormatError(errors.New("hostid or network cannot be empty"), "badrequest"))
return
}
// confirm host exists
currHost, err := logic.GetHost(hostid)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to find host:", hostid, err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
newNode, err := logic.UpdateHostNetwork(currHost, network, true)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to add host to network:", hostid, network, err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
logger.Log(1, "added new node", newNode.ID.String(), "to host", currHost.Name)
if err = mq.HostUpdate(&models.HostUpdate{
Action: models.JoinHostToNetwork,
Host: *currHost,
Node: *newNode,
}); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update host to join network:", hostid, network, err.Error())
}
networks := logic.GetHostNetworks(currHost.ID.String())
if len(networks) > 0 {
if err = mq.ModifyClient(&mq.MqClient{
ID: currHost.ID.String(),
Text: currHost.Name,
Networks: networks,
}); err != nil {
logger.Log(0, r.Header.Get("user"), "failed to update host networks roles in DynSec:", hostid, err.Error())
}
}
logger.Log(2, r.Header.Get("user"), fmt.Sprintf("added host %s to network %s", currHost.Name, network))
w.WriteHeader(http.StatusOK)
}
// swagger:route DELETE /api/hosts/{hostid}/networks/{network} hosts deleteHostFromNetwork
//
// Given a network, a host is removed from the network.
//
// Schemes: https
//
// Security:
// oauth
//
// Responses:
// 200: deleteHostFromNetworkResponse
func deleteHostFromNetwork(w http.ResponseWriter, r *http.Request) {
var params = mux.Vars(r)
hostid := params["hostid"]
network := params["network"]
if hostid == "" || network == "" {
logic.ReturnErrorResponse(w, r, logic.FormatError(errors.New("hostid or network cannot be empty"), "badrequest"))
return
}
// confirm host exists
currHost, err := logic.GetHost(hostid)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to find host:", err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
node, err := logic.UpdateHostNetwork(currHost, network, false)
if err != nil {
logger.Log(0, r.Header.Get("user"), "failed to remove host from network:", hostid, network, err.Error())
logic.ReturnErrorResponse(w, r, logic.FormatError(err, "internal"))
return
}
logger.Log(1, "deleting node", node.ID.String(), "from host", currHost.Name)
if err := logic.DeleteNode(node, false); err != nil {
logic.ReturnErrorResponse(w, r, logic.FormatError(fmt.Errorf("failed to delete node"), "internal"))
return
}
// notify node change
runUpdates(node, false)
go func() { // notify of peer change
if err := mq.PublishPeerUpdate(); err != nil {
logger.Log(1, "error publishing peer update ", err.Error())
}
}()
logger.Log(2, r.Header.Get("user"), fmt.Sprintf("removed host %s from network %s", currHost.Name, network))
w.WriteHeader(http.StatusOK)
}