feature: No more tracking in update checking! :-) (#93) (#332)

cmd/OliveTin/main.go

@@ -149,7 +149,7 @@ func main() {
 	entityfiles.AddListener(executor.RebuildActionMap)
 	go entityfiles.SetupEntityFileWatchers(cfg)
 
-	go updatecheck.StartUpdateChecker(version, commit, cfg, cfg.GetDir())
+	go updatecheck.StartUpdateChecker(cfg)
 
 	go grpcapi.Start(cfg, executor)
 

internal/httpservers/webuiServer.go

@@ -10,8 +10,8 @@ import (
 	"path/filepath"
 
 	config "github.com/OliveTin/OliveTin/internal/config"
+	installationinfo "github.com/OliveTin/OliveTin/internal/installationinfo"
 	sv "github.com/OliveTin/OliveTin/internal/stringvariables"
-	updatecheck "github.com/OliveTin/OliveTin/internal/updatecheck"
 )
 
 var (
@@ -106,8 +106,8 @@ func generateWebUISettings(w http.ResponseWriter, r *http.Request) {
 		ShowFooter:             cfg.ShowFooter,
 		ShowNavigation:         cfg.ShowNavigation,
 		ShowNewVersions:        cfg.ShowNewVersions,
-		AvailableVersion:       updatecheck.AvailableVersion,
-		CurrentVersion:         updatecheck.CurrentVersion,
+		AvailableVersion:       installationinfo.Runtime.AvailableVersion,
+		CurrentVersion:         installationinfo.Build.Version,
 		PageTitle:              cfg.PageTitle,
 		SectionNavigationStyle: cfg.SectionNavigationStyle,
 		DefaultIconForBack:     cfg.DefaultIconForBack,

internal/installationinfo/runtimeinfo.go

@@ -19,6 +19,7 @@ type runtimeInfo struct {
 	User                 string
 	Uid                  string
 	FoundSshKey          string
+	AvailableVersion     string
 }
 
 var Runtime = &runtimeInfo{

internal/updatecheck/updateCheck.go

@@ -1,11 +1,9 @@
 package updatecheck
 
 import (
-	"bytes"
 	"encoding/json"
 	config "github.com/OliveTin/OliveTin/internal/config"
-	installationinfo "github.com/OliveTin/OliveTin/internal/installationinfo"
-	"github.com/google/uuid"
+	"github.com/OliveTin/OliveTin/internal/installationinfo"
 	"github.com/robfig/cron/v3"
 	log "github.com/sirupsen/logrus"
 	"io"
@@ -13,99 +11,63 @@ import (
 	"os"
 )
 
-type updateRequest struct {
-	CurrentVersion string
-	CurrentCommit  string
-	OS             string
-	Arch           string
-	InstallationID string
-	InContainer    bool
-}
-
-// AvailableVersion is updated when checking with the update service.
-var AvailableVersion = "none"
-
-// CurrentVersion is set by the main cmd (which is in tern set as a compile constant)
-var CurrentVersion = "?"
-
-func installationID(filename string) string {
-	var content string
-	contentBytes, err := os.ReadFile(filename)
-
-	if err != nil {
-		fileHandle, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_RDWR, 0644)
-
-		if err != nil {
-			log.Warnf("Could not read + create installation ID file: %v", err)
-			return "cant-create"
-		}
-
-		content = uuid.NewString()
-		fileHandle.WriteString(content)
-		fileHandle.Close()
-	} else {
-		content = string(contentBytes)
-
-		_, err := uuid.Parse(content)
-
-		if err != nil {
-			log.Errorf("Invalid installation ID, %v", err)
-			content = "invalid-installation-id"
-		}
-	}
-
-	log.WithFields(log.Fields{
-		"content": content,
-		"from":    filename,
-	}).Infof("Installation ID")
-
-	return content
+type versionMapType struct {
+	ApiVersion int
+	Latest     string
+	History    map[string]string
 }
 
 // StartUpdateChecker will start a job that runs periodically, checking
 // for updates.
-func StartUpdateChecker(currentVersion string, currentCommit string, cfg *config.Config, configDir string) {
-	CurrentVersion = currentVersion
-
+func StartUpdateChecker(cfg *config.Config) {
 	if !cfg.CheckForUpdates {
+		installationinfo.Runtime.AvailableVersion = "none"
 		log.Warn("Update checking is disabled")
 		return
 	}
 
-	payload := updateRequest{
-		CurrentVersion: currentVersion,
-		CurrentCommit:  currentCommit,
-		OS:             installationinfo.Runtime.OS,
-		Arch:           installationinfo.Runtime.Arch,
-		InstallationID: installationID(configDir + "/installation-id.txt"),
-		InContainer:    installationinfo.Runtime.InContainer,
-	}
-
-	s := cron.New(cron.WithSeconds())
+	s := cron.New()
 
 	// Several values have been tried here.
 	// 1st: Every 24h - very spammy.
 	// 2nd: Every 7d - (168 hours - much more reasonable, but it checks in at the same time/day each week.
 	// Current: Every 100h is not so spammy, and has the advantage that the checkin time "shifts" hours.
 	s.AddFunc("@every 100h", func() {
-		actualCheckForUpdate(payload)
+		actualCheckForUpdate()
 	})
 
-	go actualCheckForUpdate(payload) // On startup
+	go actualCheckForUpdate() // On startup
 
 	go s.Start()
 }
 
-func doRequest(jsonUpdateRequest []byte) string {
-	req, err := http.NewRequest("POST", "http://update-check.olivetin.app", bytes.NewBuffer(jsonUpdateRequest))
+func parseVersion(input []byte) string {
+	versionMap := &versionMapType{}
+
+	err := json.Unmarshal(input, &versionMap)
+
+	if err != nil {
+		log.Warnf("Update check unmarshal failure: %v", err)
+		return "error-during-check"
+	} else {
+		log.Infof("Update check remote version: %+v", versionMap)
+
+		if installationinfo.Build.Version != versionMap.Latest {
+			return versionMap.Latest
+		} else {
+			return "none"
+		}
+	}
+}
+
+func doRequest() string {
+	req, err := http.NewRequest("GET", "http://update-check.olivetin.app/versions.json", nil)
 
 	if err != nil {
 		log.Errorf("Update check failed %v", err)
 		return ""
 	}
 
-	req.Header.Set("Content-Type", "application/json")
-
 	resp, err := http.DefaultClient.Do(req)
 
 	if err != nil {
@@ -113,26 +75,22 @@ func doRequest(jsonUpdateRequest []byte) string {
 		return ""
 	}
 
-	newVersion, _ := io.ReadAll(resp.Body)
+	versionMap, _ := io.ReadAll(resp.Body)
 
 	defer resp.Body.Close()
 
-	return string(newVersion)
+	return parseVersion(versionMap)
 }
 
-func actualCheckForUpdate(payload updateRequest) {
-	jsonUpdateRequest, err := json.Marshal(payload)
-
-	log.Debugf("Update request payload: %+v", payload)
-
-	if err != nil {
-		log.Errorf("Update check failed %v", err)
-		return
+func actualCheckForUpdate() {
+	if installationinfo.Build.Version == "dev" && os.Getenv("OLIVETIN_FORCE_UPDATE_CHECK") == "" {
+		installationinfo.Runtime.AvailableVersion = "you-are-using-a-dev-build"
+	} else {
+		installationinfo.Runtime.AvailableVersion = doRequest()
 	}
 
-	AvailableVersion = doRequest(jsonUpdateRequest)
-
 	log.WithFields(log.Fields{
-		"NewVersion": AvailableVersion,
+		"CurrentVersion": installationinfo.Build.Version,
+		"NewVersion":     installationinfo.Runtime.AvailableVersion,
 	}).Infof("Update check complete")
 }