Add localization for en-US and de-DE

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.gitignore

@@ -1 +1,2 @@
 ots
+frontend/locale/*.untranslated.json

Makefile

@@ -1,7 +1,10 @@
-generate:
+generate: l10n
 	coffee -c frontend/application.coffee
 	go generate
 
+l10n:
+	cd frontend/locale && goi18n *
+
 publish:
 	curl -sSLo golang.sh https://raw.githubusercontent.com/Luzifer/github-publish/master/golang.sh
 	bash golang.sh

frontend/index.html

@@ -50,7 +50,7 @@
 				<!-- Collect the nav links, forms, and other content for toggling -->
 				<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
 					<ul class="nav navbar-nav navbar-right">
-						<li><a href="#" id="newSecret"><i class="fa fa-plus"></i> New Secret</a></li>
+						<li><a href="#" id="newSecret"><i class="fa fa-plus"></i> {{T "btn-new-secret"}}</a></li>
 					</ul>
 				</div><!-- /.navbar-collapse -->
 			</div><!-- /.container-fluid -->
@@ -61,11 +61,11 @@
         <div class="col-md-8 col-md-push-2">
           <div class="alert alert-danger" role="alert" id="notfound">
             <i class="fa fa-question-circle" aria-hidden="true"></i>
-            This is not the secret you are looking for&hellip;
+            {{T "alert-secret-not-found"}}
           </div>
           <div class="alert alert-danger" role="alert" id="somethingwrong">
             <i class="fa fa-question-circle" aria-hidden="true"></i>
-            Something went wrong. I'm very sorry about this&hellip;
+            {{T "alert-something-went-wrong"}}
           </div>
         </div>
       </div>
@@ -75,39 +75,39 @@
 
           <div class="panel panel-primary" id="panelNewSecret">
             <div class="panel-heading">
-              <h3 class="panel-title">Create a new secret</h3>
+              <h3 class="panel-title">{{T "title-new-secret"}}</h3>
             </div>
             <div class="panel-body">
               <form id="formCreateSecret">
                 <div class="form-group">
-                  <label for="secret">Secret data:</label>
+                  <label for="secret">{{T "label-secret-data"}}</label>
                   <textarea class="form-control" rows="5" id="secret"></textarea>
                 </div>
-                <input class="btn btn-success" type="submit" value="Create the secret!">
+                <input class="btn btn-success" type="submit" value="{{T "btn-create-secret"}}">
               </form>
             </div>
           </div>
 
           <div class="panel panel-success" id="panelSecretURL">
             <div class="panel-heading">
-              <h3 class="panel-title">Secret created!</h3>
+              <h3 class="panel-title">{{T "title-secret-created"}}</h3>
             </div>
             <div class="panel-body">
               <p>
-                Your secret was created and stored using this URL:
+                {{T "text-pre-url"}}
               </p>
               <div class="form-group">
                 <input type="text" class="form-control" readonly>
               </div>
               <p>
-                Please remember not to go to this URL yourself as that would destroy the secret. Just pass it to someone else!
+                {{T "text-burn-hint"}}
               </p>
             </div>
           </div>
 
           <div class="panel panel-primary" id="panelReadSecret">
             <div class="panel-heading">
-              <h3 class="panel-title">Reading your secret...</h3>
+              <h3 class="panel-title">{{T "title-reading-secret"}}</h3>
             </div>
             <div class="panel-body">
               <div class="form-group">
@@ -115,7 +115,7 @@
               </div>
 
               <p>
-                <strong>Attention:</strong> You're only seeing this once. As soon as you reload the page the secret will be gone so maybe copy it now&hellip;
+                {{T "text-hint-burned"}}
               </p>
             </div>
           </div>
@@ -125,7 +125,7 @@
 
       <div class="row">
         <div class="col-md-12 footer">
-          Powered by <a href="https://github.com/Luzifer/ots"><i class="fa fa-github"></i> Luzifer/OTS</a>
+          {{T "text-powered-by"}} <a href="https://github.com/Luzifer/ots"><i class="fa fa-github"></i> Luzifer/OTS</a>
         </div>
       </div>
     </div>

frontend/locale/de-de.all.json

@@ -0,0 +1,38 @@
+{
+  "alert-secret-not-found": {
+    "other": "Das ist nicht das Secret, was du suchst\u0026hellip;"
+  },
+  "alert-something-went-wrong": {
+    "other": "Irgendwas ging schief. Entschuldigung\u0026hellip;"
+  },
+  "btn-create-secret": {
+    "other": "Secret erstellen!"
+  },
+  "btn-new-secret": {
+    "other": "Neues Secret"
+  },
+  "label-secret-data": {
+    "other": "Inhalt des Secrets:"
+  },
+  "text-burn-hint": {
+    "other": "Bitte rufe die URL nicht selbst auf, da das Secret dadurch zerstört würde. Gib sie einfach weiter!"
+  },
+  "text-hint-burned": {
+    "other": "\u003cstrong\u003eAchtung:\u003c/strong\u003e Du kannst das nur einmal ansehen! Sobald du die Seite neu lädst, ist das Secret verschwunden, also besser direkt kopieren und sicher abspeichern\u0026hellip;"
+  },
+  "text-powered-by": {
+    "other": "Läuft mit"
+  },
+  "text-pre-url": {
+    "other": "Dein Secret wurde angelegt und unter folgender URL gespeichert:"
+  },
+  "title-new-secret": {
+    "other": "Erstelle ein neues Secret"
+  },
+  "title-reading-secret": {
+    "other": "Secret auslesen\u0026hellip;"
+  },
+  "title-secret-created": {
+    "other": "Secret erstellt!"
+  }
+}

frontend/locale/en-us.all.json

@@ -0,0 +1,38 @@
+{
+  "alert-secret-not-found": {
+    "other": "This is not the secret you are looking for\u0026hellip;"
+  },
+  "alert-something-went-wrong": {
+    "other": "Something went wrong. I'm very sorry about this\u0026hellip;"
+  },
+  "btn-create-secret": {
+    "other": "Create the secret!"
+  },
+  "btn-new-secret": {
+    "other": "New Secret"
+  },
+  "label-secret-data": {
+    "other": "Secret data:"
+  },
+  "text-burn-hint": {
+    "other": "Please remember not to go to this URL yourself as that would destroy the secret. Just pass it to someone else!"
+  },
+  "text-hint-burned": {
+    "other": "\u003cstrong\u003eAttention:\u003c/strong\u003e You're only seeing this once. As soon as you reload the page the secret will be gone so maybe copy it now\u0026hellip;"
+  },
+  "text-powered-by": {
+    "other": "Powered by"
+  },
+  "text-pre-url": {
+    "other": "Your secret was created and stored using this URL:"
+  },
+  "title-new-secret": {
+    "other": "Create a new secret"
+  },
+  "title-reading-secret": {
+    "other": "Reading your secret\u0026hellip;"
+  },
+  "title-secret-created": {
+    "other": "Secret created!"
+  }
+}

main.go

@@ -1,6 +1,6 @@
 package main
 
-//go:generate go-bindata -pkg $GOPACKAGE -o assets.go ./frontend
+//go:generate go-bindata -pkg $GOPACKAGE -o assets.go ./frontend/...
 
 import (
 	"fmt"
@@ -9,6 +9,7 @@ import (
 	"os"
 	"path"
 	"strings"
+	"text/template"
 
 	http_helpers "github.com/Luzifer/go_helpers/http"
 	"github.com/Luzifer/rconfig"
@@ -73,5 +74,15 @@ func assetDelivery(res http.ResponseWriter, r *http.Request) {
 	}
 
 	res.Header().Set("Content-Type", mime.TypeByExtension(ext))
-	res.Write(assetData)
+
+	tpl, err := template.New(assetName).Funcs(getTFuncMap(r)).Parse(string(assetData))
+
+	if err != nil {
+		log.Errorf("Template for asset %q has an error: %s", assetName, err)
+		return
+	}
+
+	tpl.Execute(res, map[string]interface{}{
+		"version": version,
+	})
 }

translations.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"net/http"
+	"strings"
+	"text/template"
+
+	"github.com/nicksnyder/go-i18n/i18n"
+	log "github.com/sirupsen/logrus"
+)
+
+func init() {
+	for _, filename := range AssetNames() {
+		if !strings.HasPrefix(filename, "frontend/locale") || !strings.HasSuffix(filename, ".all.json") {
+			continue
+		}
+
+		translationData, _ := Asset(filename)
+		if err := i18n.ParseTranslationFileBytes(filename, translationData); err != nil {
+			log.Fatalf("Unable to load translation data %q: %s", filename, err)
+		}
+	}
+}
+
+func getTFuncMap(r *http.Request) template.FuncMap {
+	cookie, _ := r.Cookie("lang")
+
+	cookieLang := ""
+	if cookie != nil {
+		cookieLang = cookie.Value
+	}
+	qpLang := r.URL.Query().Get("hl")
+	acceptLang := r.Header.Get("Accept-Language")
+	defaultLang := "en-US" // known valid language
+
+	T, _ := i18n.Tfunc(cookieLang, qpLang, acceptLang, defaultLang)
+	return template.FuncMap{
+		"T": T,
+	}
+}