Licensing service (#19903)

* Licensing: supplies a service to handle licensing information

* Licensing: uses the license service further

Uses the license service instead of settings.isEnterprise:
- external team members
- saml
- usage stats

* Licensing: fixes broken tests due to new Licensing service dependency

* Licensing: fixes linting errors

* Licensing: exposes license expiry information to the frontend

pkg/api/api.go

@@ -154,7 +154,7 @@ func (hs *HTTPServer) registerRoutes() {
 			teamsRoute.Post("/", bind(models.CreateTeamCommand{}), Wrap(hs.CreateTeam))
 			teamsRoute.Put("/:teamId", bind(models.UpdateTeamCommand{}), Wrap(hs.UpdateTeam))
 			teamsRoute.Delete("/:teamId", Wrap(hs.DeleteTeamByID))
-			teamsRoute.Get("/:teamId/members", Wrap(GetTeamMembers))
+			teamsRoute.Get("/:teamId/members", Wrap(hs.GetTeamMembers))
 			teamsRoute.Post("/:teamId/members", bind(models.AddTeamMemberCommand{}), Wrap(hs.AddTeamMember))
 			teamsRoute.Put("/:teamId/members/:userId", bind(models.UpdateTeamMemberCommand{}), Wrap(hs.UpdateTeamMember))
 			teamsRoute.Delete("/:teamId/members/:userId", Wrap(hs.RemoveTeamMember))

pkg/api/frontendsettings.go

@@ -196,7 +196,11 @@ func (hs *HTTPServer) getFrontendSettingsMap(c *m.ReqContext) (map[string]interf
 			"latestVersion": plugins.GrafanaLatestVersion,
 			"hasUpdate":     plugins.GrafanaHasUpdate,
 			"env":           setting.Env,
-			"isEnterprise":  setting.IsEnterprise,
+			"isEnterprise":  hs.License.HasValidLicense(),
+		},
+		"licenseInfo": map[string]interface{}{
+			"hasLicense": hs.License.HasLicense(),
+			"expiry":     hs.License.Expiry(),
 		},
 		"featureToggles": hs.Cfg.FeatureToggles,
 	}

pkg/api/http_server.go

@@ -69,6 +69,7 @@ type HTTPServer struct {
 	RemoteCacheService  *remotecache.RemoteCache `inject:""`
 	ProvisioningService ProvisioningService      `inject:""`
 	Login               *login.LoginService      `inject:""`
+	License             models.Licensing         `inject:""`
 }
 
 func (hs *HTTPServer) Init() error {

pkg/api/index.go

@@ -83,7 +83,7 @@ func (hs *HTTPServer) setIndexViewData(c *m.ReqContext) (*dtos.IndexViewData, er
 		NewGrafanaVersion:       plugins.GrafanaLatestVersion,
 		NewGrafanaVersionExists: plugins.GrafanaHasUpdate,
 		AppName:                 setting.ApplicationName,
-		AppNameBodyClass:        getAppNameBodyClass(setting.ApplicationName),
+		AppNameBodyClass:        getAppNameBodyClass(hs.License.HasValidLicense()),
 	}
 
 	if setting.DisableGravatar {
@@ -372,13 +372,10 @@ func (hs *HTTPServer) NotFoundHandler(c *m.ReqContext) {
 	c.HTML(404, "index", data)
 }
 
-func getAppNameBodyClass(name string) string {
-	switch name {
-	case setting.APP_NAME:
-		return "app-grafana"
-	case setting.APP_NAME_ENTERPRISE:
+func getAppNameBodyClass(validLicense bool) string {
+	if validLicense {
 		return "app-enterprise"
-	default:
-		return ""
 	}
+
+	return "app-grafana"
 }

pkg/api/login.go

@@ -40,7 +40,7 @@ func (hs *HTTPServer) LoginView(c *models.ReqContext) {
 	}
 
 	viewData.Settings["oauth"] = enabledOAuths
-	viewData.Settings["samlEnabled"] = setting.IsEnterprise && hs.Cfg.SAMLEnabled
+	viewData.Settings["samlEnabled"] = hs.License.HasValidLicense() && hs.Cfg.SAMLEnabled
 
 	if loginError, ok := tryGetEncryptedCookie(c, LoginErrorCookieName); ok {
 		//this cookie is only set whenever an OAuth login fails

pkg/api/login_test.go

@@ -60,7 +60,8 @@ func TestLoginErrorCookieApiEndpoint(t *testing.T) {
 
 	sc := setupScenarioContext("/login")
 	hs := &HTTPServer{
-		Cfg: setting.NewCfg(),
+		Cfg:     setting.NewCfg(),
+		License: models.OSSLicensingService{},
 	}
 
 	sc.defaultHandler = Wrap(func(w http.ResponseWriter, c *models.ReqContext) {
@@ -109,7 +110,8 @@ func TestLoginOAuthRedirect(t *testing.T) {
 
 	sc := setupScenarioContext("/login")
 	hs := &HTTPServer{
-		Cfg: setting.NewCfg(),
+		Cfg:     setting.NewCfg(),
+		License: models.OSSLicensingService{},
 	}
 
 	sc.defaultHandler = Wrap(func(c *models.ReqContext) {

pkg/api/team_members.go

@@ -5,12 +5,11 @@ import (
 	"github.com/grafana/grafana/pkg/bus"
 	m "github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/services/teamguardian"
-	"github.com/grafana/grafana/pkg/setting"
 	"github.com/grafana/grafana/pkg/util"
 )
 
 // GET /api/teams/:teamId/members
-func GetTeamMembers(c *m.ReqContext) Response {
+func (hs *HTTPServer) GetTeamMembers(c *m.ReqContext) Response {
 	query := m.GetTeamMembersQuery{OrgId: c.OrgId, TeamId: c.ParamsInt64(":teamId")}
 
 	if err := bus.Dispatch(&query); err != nil {
@@ -21,7 +20,7 @@ func GetTeamMembers(c *m.ReqContext) Response {
 		member.AvatarUrl = dtos.GetGravatarUrl(member.Email)
 		member.Labels = []string{}
 
-		if setting.IsEnterprise && member.External {
+		if hs.License.HasValidLicense() && member.External {
 			authProvider := GetAuthProviderLabel(member.AuthModule)
 			member.Labels = append(member.Labels, authProvider)
 		}

pkg/extensions/main.go

@@ -6,6 +6,8 @@ import (
 
 	_ "github.com/crewjam/saml"
 	_ "github.com/gobwas/glob"
+	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/registry"
 	_ "github.com/jung-kurt/gofpdf"
 	_ "github.com/robfig/cron"
 	_ "github.com/robfig/cron/v3"
@@ -13,4 +15,8 @@ import (
 	_ "gopkg.in/square/go-jose.v2"
 )
 
+func init() {
+	registry.RegisterService(&models.OSSLicensingService{})
+}
+
 var IsEnterprise bool = false

pkg/infra/usagestats/service.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/bus"
 	"github.com/grafana/grafana/pkg/login/social"
+	"github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/services/sqlstore"
 
 	"github.com/grafana/grafana/pkg/infra/log"
@@ -23,6 +24,7 @@ type UsageStatsService struct {
 	Cfg      *setting.Cfg       `inject:""`
 	Bus      bus.Bus            `inject:""`
 	SQLStore *sqlstore.SqlStore `inject:""`
+	License  models.Licensing   `inject:""`
 
 	oauthProviders map[string]bool
 }

pkg/infra/usagestats/usage_stats.go

@@ -32,7 +32,7 @@ func (uss *UsageStatsService) sendUsageStats(oauthProviders map[string]bool) {
 		"metrics":   metrics,
 		"os":        runtime.GOOS,
 		"arch":      runtime.GOARCH,
-		"edition":   getEdition(),
+		"edition":   getEdition(uss.License.HasValidLicense()),
 		"packaging": setting.Packaging,
 	}
 
@@ -182,8 +182,8 @@ func (uss *UsageStatsService) updateTotalStats() {
 	metrics.StatsTotalActiveAdmins.Set(float64(statsQuery.Result.ActiveAdmins))
 }
 
-func getEdition() string {
-	if setting.IsEnterprise {
+func getEdition(validLicense bool) string {
+	if validLicense {
 		return "enterprise"
 	}
 	return "oss"

pkg/infra/usagestats/usage_stats_test.go

@@ -25,6 +25,7 @@ func TestMetrics(t *testing.T) {
 		uss := &UsageStatsService{
 			Bus:      bus.New(),
 			SQLStore: sqlstore.InitTestDB(t),
+			License:  models.OSSLicensingService{},
 		}
 
 		var getSystemStatsQuery *models.GetSystemStatsQuery

pkg/models/licensing.go

+package models
+
+type Licensing interface {
+	// HasValidLicense is true if a valid license exists
+	HasValidLicense() bool
+
+	// HasLicense is true if there is a license provided
+	HasLicense() bool
+
+	// Expiry returns the unix epoch timestamp when the license expires, or 0 if no valid license is provided
+	Expiry() int64
+}
+
+type OSSLicensingService struct{}
+
+func (OSSLicensingService) HasLicense() bool {
+	return false
+}
+
+func (OSSLicensingService) Expiry() int64 {
+	return 0
+}
+
+func (OSSLicensingService) Init() error {
+	return nil
+}
+
+func (OSSLicensingService) HasValidLicense() bool {
+	return false
+}