feat: Add language redirection

2023-05-17 16:44:49 +02:00 · 2023-05-17 16:44:49 +02:00 · 673b293891
parent dc3dbb9f64
commit 673b293891
1 changed files with 68 additions and 0 deletions
--- a/layouts/alias.html
+++ b/layouts/alias.html
@ -0,0 +1,68 @@
+<!DOCTYPE html>
+{{ $defaultLanguage := (index (first 1 (where site.Home.AllTranslations "Permalink" .Permalink)) 0).Language.Lang }}
+<html lang="{{ $defaultLanguage }}">
+<head>
+    <title>{{ i18n "title" }}</title>
+    <meta name="description" content="{{ i18n "description" }}">
+    <link rel="canonical" href="{{ .Permalink }}"/>
+    <meta name="robots" content="noindex">
+    <meta charset="utf-8"/>
+    <noscript>
+        <meta http-equiv="refresh" content="0; url={{ .Permalink }}"/>
+    </noscript>
+    <script>
+      ;(function () {
+        // Only do i18n at root, 
+        // otherwise, redirect immediately
+        if (window.location.pathname !== '/') {
+          window.location.replace('{{ .Permalink }}')
+          return
+        }
+
+        var getFirstBrowserLanguage = function () {
+          var nav = window.navigator,
+          browserLanguagePropertyKeys = ['language', 'browserLanguage', 'systemLanguage', 'userLanguage'],
+          i,
+          language
+
+          if (Array.isArray(nav.languages)) {
+            for (i = 0; i < nav.languages.length; i++) {
+              language = nav.languages[i]
+              if (language && language.length) {
+                return language
+              }
+            }
+          }
+
+          // support for other well known properties in browsers
+          for (i = 0; i < browserLanguagePropertyKeys.length; i++) {
+            language = nav[browserLanguagePropertyKeys[i]]
+            if (language && language.length) {
+              return language
+            }
+          }
+
+          return '{{ $defaultLanguage }}'
+        }
+
+        var preferLang = getFirstBrowserLanguage()
+        {{ range $index, $elem := site.Home.AllTranslations }}
+        {{ if ne $index 0 }}else {{end}}if (preferLang.indexOf('{{ $elem.Lang }}') !== -1) {
+            window.location.replace('{{ $elem.Permalink }}')
+        }
+        {{ end }}
+        else {
+        {{- range site.Home.AllTranslations -}}
+        {{- if eq $defaultLanguage .Lang }}
+            window.location.replace('{{ .Permalink }}')
+        {{ end -}}
+        {{ end -}}
+        }
+      })()
+    </script>
+</head>
+<body>
+<h1>{{ i18n "title" }}</h1>
+<p>You should be rerouted in a jiff, if not, <a href="{{ .Permalink }}">click here</a>.</p>
+</body>
+</html>