Properly fix displaying virtual session provider in admin panel (#9137)

* Properly fix #7127

Although #7300 properly shadows the password from the virtual session
provider, the template displaying the provider config still presumed
that the config was JSON.

This PR updates the template and properly hides the Virtual Session
provider.

Fixes #7127

* update per @silverwind's suggestion

routers/admin/admin.go

@@ -262,13 +262,7 @@ func shadowPassword(provider, cfgItem string) string {
 		return shadowURL(provider, cfgItem)
 		// postgres://pqgotest:password@localhost/pqgotest?sslmode=verify-full
 		// Notice: use shadowURL
-	case "VirtualSession":
-		var realSession session.Options
-		if err := json.Unmarshal([]byte(cfgItem), &realSession); err == nil {
-			return shadowPassword(realSession.Provider, realSession.ProviderConfig)
-		}
 	}
-
 	return cfgItem
 }
 
@@ -314,8 +308,14 @@ func Config(ctx *context.Context) {
 	ctx.Data["CacheItemTTL"] = setting.CacheService.TTL
 
 	sessionCfg := setting.SessionConfig
+	if sessionCfg.Provider == "VirtualSession" {
+		var realSession session.Options
+		if err := json.Unmarshal([]byte(sessionCfg.ProviderConfig), &realSession); err != nil {
+			log.Error("Unable to unmarshall session config for virtualed provider config: %s\nError: %v", sessionCfg.ProviderConfig, err)
+		}
+		sessionCfg = realSession
+	}
 	sessionCfg.ProviderConfig = shadowPassword(sessionCfg.Provider, sessionCfg.ProviderConfig)
-
 	ctx.Data["SessionConfig"] = sessionCfg
 
 	ctx.Data["DisableGravatar"] = setting.DisableGravatar

templates/admin/config.tmpl

@@ -270,7 +270,7 @@
 				<dt>{{.i18n.Tr "admin.config.session_provider"}}</dt>
 				<dd>{{.SessionConfig.Provider}}</dd>
 				<dt>{{.i18n.Tr "admin.config.provider_config"}}</dt>
-				<dd><pre>{{if .SessionConfig.ProviderConfig}}{{.SessionConfig.ProviderConfig  | JsonPrettyPrint}}{{else}}-{{end}}</pre></dd>
+				<dd><code>{{if .SessionConfig.ProviderConfig}}{{.SessionConfig.ProviderConfig}}{{else}}-{{end}}</code></dd>
 				<dt>{{.i18n.Tr "admin.config.cookie_name"}}</dt>
 				<dd>{{.SessionConfig.CookieName}}</dd>
 				<dt>{{.i18n.Tr "admin.config.gc_interval_time"}}</dt>