Embed translation bundle into binary

.gitignore

@@ -1,3 +1,4 @@
+*.pem
 .idea/
 /cacert-idp
 /static

Makefile

@@ -1,6 +1,6 @@
 GOFILES = $(wildcard */*.go)
 TEMPLATES = $(wildcard ui/templates/*.gohtml)
-TRANSLATIONS = $(wildcard active.*.toml)
+TRANSLATIONS = $(wildcard translations/active.*.toml)
 RESOURCES = ui/css ui/images ui/js
 
 all: cacert-idp
@@ -18,8 +18,9 @@ go.sum: go.mod
 	go mod tidy
 
 translations: $(TRANSLATIONS) $(GOFILES)
-	goi18n extract .
-	goi18n merge active.*.toml
+	cd translations ; \
+	goi18n extract .. ; \
+	goi18n merge active.*.toml ; \
 	if translate.*.toml 2>/dev/null; then \
 		echo "missing translations"; \
 		goi18n merge active.*.toml translate.*.toml; \

cmd/idp.go

@@ -147,9 +147,10 @@ func main() {
 		csrf.MaxAge(DefaultCSRFMaxAge))
 
 	errorMiddleware, err := handlers.ErrorHandling(
-		context.Background(),
 		logger,
 		ui.Templates,
+		bundle,
+		catalog,
 	)
 	if err != nil {
 		logger.Fatalf("could not initialize request error handling: %v", err)

handlers/error.go

@@ -130,9 +130,10 @@ func (w *errorResponseWriter) Write(content []byte) (int, error) {
 }
 
 func ErrorHandling(
-	handlerContext context.Context,
 	logger *log.Logger,
 	templateFS fs.FS,
+	bundle *i18n.Bundle,
+	messageCatalog *services.MessageCatalog,
 ) (func(http.Handler) http.Handler, error) {
 	errorTemplates, err := template.ParseFS(
 		templateFS,
@@ -143,16 +144,6 @@ func ErrorHandling(
 		return nil, fmt.Errorf("could not parse templates: %w", err)
 	}
 
-	bundle, err := services.GetI18nBundle(handlerContext)
-	if err != nil {
-		return nil, fmt.Errorf("could not get i18n bundle: %w", err)
-	}
-
-	messageCatalog, err := services.GetMessageCatalog(handlerContext)
-	if err != nil {
-		return nil, fmt.Errorf("could not get message catalog: %w", err)
-	}
-
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			errorBucket := &ErrorBucket{

services/i18n.go

@@ -18,12 +18,13 @@ limitations under the License.
 package services
 
 import (
-	"context"
 	"errors"
 	"fmt"
 
 	log "github.com/sirupsen/logrus"
 
+	"git.cacert.org/oidc_idp/translations"
+
 	"github.com/BurntSushi/toml"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	"golang.org/x/text/language"
@@ -107,13 +108,6 @@ func AddMessages(catalog *MessageCatalog) error {
 	return nil
 }
 
-type contextKey int
-
-const (
-	ctxI18nBundle contextKey = iota
-	ctxI18nCatalog
-)
-
 type MessageCatalog struct {
 	messages map[string]*i18n.Message
 	logger   *log.Logger
@@ -227,10 +221,16 @@ func InitI18n(logger *log.Logger, languages []string) (*i18n.Bundle, *MessageCat
 	bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
 
 	for _, lang := range languages {
-		_, err := bundle.LoadMessageFile(fmt.Sprintf("active.%s.toml", lang))
+		bundleName := fmt.Sprintf("active.%s.toml", lang)
+
+		bundleBytes, err := translations.Bundles.ReadFile(bundleName)
 		if err != nil {
-			logger.Warnf("message bundle %s.toml not found", lang)
+			logger.Warnf("message bundle %s not found", bundleName)
+
+			continue
 		}
+
+		bundle.MustParseMessageFileBytes(bundleBytes, bundleName)
 	}
 
 	catalog := initMessageCatalog(logger)
@@ -247,19 +247,3 @@ func initMessageCatalog(logger *log.Logger) *MessageCatalog {
 
 	return &MessageCatalog{messages: messages, logger: logger}
 }
-
-func GetI18nBundle(ctx context.Context) (*i18n.Bundle, error) {
-	if b, ok := ctx.Value(ctxI18nBundle).(*i18n.Bundle); ok {
-		return b, nil
-	}
-
-	return nil, errors.New("context value is not a Bundle")
-}
-
-func GetMessageCatalog(ctx context.Context) (*MessageCatalog, error) {
-	if c, ok := ctx.Value(ctxI18nCatalog).(*MessageCatalog); ok {
-		return c, nil
-	}
-
-	return nil, errors.New("context value is not a MessageCatalog")
-}

translations/translations.go

@@ -0,0 +1,23 @@
+/*
+Copyright 2020-2023 CAcert Inc.
+SPDX-License-Identifier: Apache-2.0
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package translations
+
+import "embed"
+
+//go:embed active.*.toml
+var Bundles embed.FS

ui/templates/base.gohtml

@@ -32,7 +32,7 @@
     </main>
     <footer class="footer mt-auto py-3">
         <div class="container">
-            <span class="text-muted small">© 2020-2022 <a href="https://www.cacert.org/">CAcert</a></span>
+            <span class="text-muted small">© 2020-2023 <a href="https://www.cacert.org/">CAcert</a></span>
         </div>
     </footer>
     <script type="text/javascript" src="/js/cacert.bundle.js"></script>