log and show last restart on ACP dashboard

src/controllers/admin/dashboard.js

@@ -9,6 +9,8 @@ var versions = require('../../admin/versions');
 var db = require('../../database');
 var meta = require('../../meta');
 var plugins = require('../../plugins');
+var user = require('../../user');
+var utils = require('../../utils');
 
 var dashboardController = module.exports;
 
@@ -51,6 +53,9 @@ dashboardController.get = function (req, res, next) {
 						next(null, err ? null : result);
 					});
 				},
+				lastrestart: function (next) {
+					getLastRestart(next);
+				},
 			}, next);
 		},
 		function (results) {
@@ -65,6 +70,7 @@ dashboardController.get = function (req, res, next) {
 				notices: results.notices,
 				stats: results.stats,
 				canRestart: !!process.send,
+				lastrestart: results.lastrestart,
 			});
 		},
 	], next);
@@ -128,3 +134,24 @@ function getGlobalField(field, callback) {
 		callback(err, parseInt(count, 10) || 0);
 	});
 }
+
+function getLastRestart(callback) {
+	var lastrestart;
+	async.waterfall([
+		function (next) {
+			db.getObject('lastrestart', next);
+		},
+		function (_lastrestart, next) {
+			lastrestart = _lastrestart;
+			if (!lastrestart) {
+				return callback();
+			}
+			user.getUserData(lastrestart.uid, next);
+		},
+		function (userData, next) {
+			lastrestart.user = userData;
+			lastrestart.timestampISO = utils.toISOString(lastrestart.timestamp);
+			next(null, lastrestart);
+		},
+	], callback);
+}