Log version check info when app is starting

Signed-off-by: Yukai Huang <yukaihuangtw@gmail.com>

app.js

@@ -25,7 +25,7 @@ var response = require('./lib/response')
 var models = require('./lib/models')
 var csp = require('./lib/csp')
 
-const { versionCheckMiddleware } = require('./lib/web/middleware/checkVersion')
+const { versionCheckMiddleware, checkVersion } = require('./lib/web/middleware/checkVersion')
 
 function createHttpServer () {
   if (config.useSSL) {
@@ -170,6 +170,7 @@ app.use(require('./lib/middleware/redirectWithoutTrailingSlashes'))
 app.use(require('./lib/middleware/codiMDVersion'))
 
 if (config.autoVersionCheck) {
+  checkVersion(app)
   app.use(versionCheckMiddleware)
 }
 

lib/web/middleware/checkVersion.js

@@ -14,9 +14,13 @@ const CHECK_TIMEOUT = 1000 * 60 * 60 * 24 // 1 day
 
 const rp = promisify(request)
 
-exports.versionCheckMiddleware = async function (req, res, next) {
+exports.checkVersion = checkVersion
+/**
+ * @param {Express.Application|Express.Request} ctx
+ */
+async function checkVersion (ctx) {
   if (lastCheckAt && (lastCheckAt + CHECK_TIMEOUT > Date.now())) {
-    return next()
+    return
   }
 
   // update lastCheckAt whether the check would fail or not
@@ -31,17 +35,36 @@ exports.versionCheckMiddleware = async function (req, res, next) {
 
     if (statusCode !== 200 || data.status === 'error') {
       logger.error('Version check failed.')
-      return next()
+      return
     }
 
-    req.app.locals.versionInfo.latest = data.latest
+    let locals = ctx.locals ? ctx.locals : ctx.app.locals
-    req.app.locals.versionInfo.versionItem = req.app.locals.latest ? null : data.versionItem
 
-    return next()
+    locals.versionInfo.latest = data.latest
+    locals.versionInfo.versionItem = data.latest ? null : data.versionItem
+
+    if (!data.latest) {
+      const { version, link } = data.versionItem
+
+      logger.warn(`Your CodiMD version is out of date! The latest version is ${version}. Please see what's new on ${link}.`)
+    }
+
+    return
   } catch (err) {
     // ignore and skip version check
     logger.error('Version check failed.')
     logger.error(err)
-    return next()
+
+    return
   }
 }
+
+exports.versionCheckMiddleware = function (req, res, next) {
+  checkVersion(req)
+    .then(() => {
+      next()
+    })
+    .catch((err) => {
+      next()
+    })
+}