From 1ba9790a42bc1802e58b17d630c07d4ff0e7eb13 Mon Sep 17 00:00:00 2001
From: MaysWind <i@mayswind.net>
Date: Fri, 20 Nov 2020 22:52:44 +0800
Subject: [PATCH] server checks if current device is mobile device, and let
 browser navigate to specific pages

---
 cmd/webserver.go       | 9 ++++++++-
 go.mod                 | 1 +
 go.sum                 | 2 ++
 src/Desktop.vue        | 8 ++++++--
 src/consts/licenses.js | 6 ++++++
 5 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/cmd/webserver.go b/cmd/webserver.go
index 01a62a6b..9ef86b08 100644
--- a/cmd/webserver.go
+++ b/cmd/webserver.go
@@ -9,6 +9,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/binding"
 	"github.com/go-playground/validator/v10"
+	"github.com/mssola/user_agent"
 	"github.com/urfave/cli/v2"
 
 	"github.com/mayswind/lab/pkg/api"
@@ -81,7 +82,13 @@ func startWebServer(c *cli.Context) error {
 	router.NoMethod(bindApi(api.Default.MethodNotAllowed))
 
 	router.GET("/", func(c *gin.Context) {
-		c.Redirect(http.StatusMovedPermanently, "/mobile/")
+		ua := user_agent.New(c.GetHeader("User-Agent"))
+
+		if ua.Mobile() {
+			c.Redirect(http.StatusMovedPermanently, "/mobile/")
+		} else {
+			c.Redirect(http.StatusMovedPermanently, "/desktop/")
+		}
 	})
 
 	router.StaticFile("robots.txt", filepath.Join(config.StaticRootPath, "robots.txt"))
diff --git a/go.mod b/go.mod
index 6c84aa04..a32129f9 100644
--- a/go.mod
+++ b/go.mod
@@ -10,6 +10,7 @@ require (
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/lib/pq v1.8.0
 	github.com/mattn/go-sqlite3 v1.14.4
+	github.com/mssola/user_agent v0.5.2
 	github.com/pquerna/otp v1.3.0
 	github.com/sirupsen/logrus v1.7.0
 	github.com/smartystreets/goconvey v1.6.4 // indirect
diff --git a/go.sum b/go.sum
index a6ef9c19..975cfd2b 100644
--- a/go.sum
+++ b/go.sum
@@ -61,6 +61,8 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OH
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
+github.com/mssola/user_agent v0.5.2 h1:CZkTUahjL1+OcZ5zv3kZr8QiJ8jy2H08vZIEkBeRbxo=
+github.com/mssola/user_agent v0.5.2/go.mod h1:TTPno8LPY3wAIEKRpAtkdMT0f8SE24pLRGPahjCH4uw=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0 h1:WSHQ+IS43OoUrWtD1/bbclrwK8TTH5hzp+umCiuxHgs=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
diff --git a/src/Desktop.vue b/src/Desktop.vue
index 95feb14e..0fad821f 100644
--- a/src/Desktop.vue
+++ b/src/Desktop.vue
@@ -1,7 +1,11 @@
 <template>
-    <div>Not Implemented</div>
+    <div></div>
 </template>
 
 <script>
-export default {}
+export default {
+    created() {
+        location.href = '../mobile/'
+    }
+}
 </script>
diff --git a/src/consts/licenses.js b/src/consts/licenses.js
index 7549c3bc..3354cdfe 100644
--- a/src/consts/licenses.js
+++ b/src/consts/licenses.js
@@ -69,6 +69,12 @@ const licenses = [
         url: 'https://github.com/mattn/go-sqlite3',
         licenseUrl: 'https://github.com/mattn/go-sqlite3/blob/master/LICENSE'
     },
+    {
+        name: 'UserAgent',
+        copyright: 'Copyright (c) 2012-2020 Miquel Sabaté Solà',
+        url: 'https://github.com/mssola/user_agent',
+        licenseUrl: 'https://github.com/mssola/user_agent/blob/master/LICENSE'
+    },
     {
         name: 'Go Cryptography',
         copyright: 'Copyright (c) 2009 The Go Authors. All rights reserved.',