[WIP] dmsghttp updater

cmd/skywire-cli/commands/dmsghttp/root.go

@@ -0,0 +1,102 @@
+// Package clidmsghttp cmd/skywire-cli/commands/dmsghttp/root.go
+package clidmsghttp
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+
+	"github.com/spf13/cobra"
+
+	"github.com/skycoin/skywire-utilities/pkg/cmdutil"
+	"github.com/skycoin/skywire-utilities/pkg/httputil"
+	"github.com/skycoin/skywire-utilities/pkg/logging"
+	"github.com/skycoin/skywire-utilities/pkg/skyenv"
+)
+
+var (
+	path string
+)
+
+func init() {
+	dmsghttpCmd.Flags().SortFlags = false
+	dmsghttpCmd.Flags().StringVarP(&path, "path", "p", "/opt/skywire/dmsghttp-config.json", "path of dmsghttp-config file, default is for pkg installation")
+}
+
+// RootCmd is surveyCmd
+var RootCmd = dmsghttpCmd
+
+var dmsghttpCmd = &cobra.Command{
+	Use:   "dmsghttp update",
+	Short: "update dmsghttp-config.json file from config bootstrap service",
+	Run: func(cmd *cobra.Command, args []string) {
+		log := logging.MustGetLogger("dmsghttp_updater")
+
+		ctx, cancel := cmdutil.SignalContext(context.Background(), log)
+		defer cancel()
+		go func() {
+			<-ctx.Done()
+			cancel()
+			os.Exit(1)
+		}()
+
+		dmsghttpConf, err := fetchDmsghttpConf()
+		if err != nil {
+			log.WithError(err).Error("Cannot fetching updated dmsghttp-config data")
+		}
+
+		file, err := json.MarshalIndent(dmsghttpConf, "", " ")
+		if err != nil {
+			log.WithError(err).Error("Error accurs during marshal content to json file")
+		}
+
+		err = ioutil.WriteFile(path, file, 0600)
+		if err != nil {
+			log.WithError(err).Errorf("Cannot save new dmsghttp-config.json file at %s", path)
+		}
+	},
+}
+
+type dmsghttpConf struct { //nolint
+	Test httputil.DMSGHTTPConf `json:"test"`
+	Prod httputil.DMSGHTTPConf `json:"prod"`
+}
+
+func fetchDmsghttpConf() (dmsghttpConf, error) {
+	var newConf dmsghttpConf
+	var prodConf httputil.DMSGHTTPConf
+	prodResp, err := http.Get(skyenv.ServiceConfAddr + "/dmsghttp")
+	if err != nil {
+		return newConf, err
+	}
+	defer prodResp.Body.Close() //nolint
+	body, err := io.ReadAll(prodResp.Body)
+	if err != nil {
+		return newConf, err
+	}
+	err = json.Unmarshal(body, &prodConf)
+	if err != nil {
+		return newConf, err
+	}
+	newConf.Prod = prodConf
+
+	var testConf httputil.DMSGHTTPConf
+	testResp, err := http.Get(skyenv.TestServiceConfAddr + "/dmsghttp")
+	if err != nil {
+		return newConf, err
+	}
+	defer testResp.Body.Close() //nolint
+	body, err = io.ReadAll(testResp.Body)
+	if err != nil {
+		return newConf, err
+	}
+	err = json.Unmarshal(body, &testConf)
+	if err != nil {
+		return newConf, err
+	}
+	newConf.Test = testConf
+	return newConf, nil
+}

cmd/skywire-cli/commands/root.go

@@ -15,6 +15,7 @@ import (
 	"github.com/skycoin/skywire-utilities/pkg/buildinfo"
 	clicompletion "github.com/skycoin/skywire/cmd/skywire-cli/commands/completion"
 	cliconfig "github.com/skycoin/skywire/cmd/skywire-cli/commands/config"
+	clidmsghttp "github.com/skycoin/skywire/cmd/skywire-cli/commands/dmsghttp"
 	clidmsgpty "github.com/skycoin/skywire/cmd/skywire-cli/commands/dmsgpty"
 	clilog "github.com/skycoin/skywire/cmd/skywire-cli/commands/log"
 	climdisc "github.com/skycoin/skywire/cmd/skywire-cli/commands/mdisc"
@@ -195,6 +196,7 @@ func init() {
 		cliskysocksc.RootCmd,
 		treeCmd,
 		docCmd,
+		clidmsghttp.RootCmd,
 	)
 	var jsonOutput bool
 	RootCmd.PersistentFlags().BoolVar(&jsonOutput, internal.JSONString, false, "print output in json")