Implement consent workflow

idp/services/i18n.go

@@ -2,6 +2,7 @@ package services
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/BurntSushi/toml"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
@@ -16,6 +17,56 @@ const (
 	CtxI18nCatalog
 )
 
+type MessageCatalog struct {
+	messages map[string]*i18n.Message
+	logger   *log.Logger
+}
+
+func (m *MessageCatalog) LookupErrorMessage(tag string, field string, value interface{}, localizer *i18n.Localizer) string {
+	var message *i18n.Message
+	message, ok := m.messages[fmt.Sprintf("%s-%s", field, tag)]
+	if !ok {
+		m.logger.Infof("no specific error message %s-%s", field, tag)
+		message, ok = m.messages[tag]
+		if !ok {
+			m.logger.Infof("no specific error message %s", tag)
+			message, ok = m.messages["unknown"]
+			if !ok {
+				m.logger.Error("no default translation found")
+				return tag
+			}
+		}
+	}
+
+	translation, err := localizer.Localize(&i18n.LocalizeConfig{
+		DefaultMessage: message,
+		TemplateData: map[string]interface{}{
+			"Value": value,
+		},
+	})
+	if err != nil {
+		m.logger.Error(err)
+		return tag
+	}
+	return translation
+}
+
+func (m *MessageCatalog) LookupMessage(id string, templateData map[string]interface{}, localizer *i18n.Localizer) string {
+	if message, ok := m.messages[id]; ok {
+		translation, err := localizer.Localize(&i18n.LocalizeConfig{
+			DefaultMessage: message,
+			TemplateData:   templateData,
+		})
+		if err != nil {
+			m.logger.Error(err)
+			return id
+		}
+		return translation
+	} else {
+		return id
+	}
+}
+
 func InitI18n(ctx context.Context, logger *log.Logger) context.Context {
 	bundle := i18n.NewBundle(language.English)
 	bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
@@ -23,33 +74,69 @@ func InitI18n(ctx context.Context, logger *log.Logger) context.Context {
 	if err != nil {
 		logger.Warnln("message bundle de.toml not found")
 	}
-	catalog := initMessageCatalog()
+	catalog := initMessageCatalog(logger)
 	ctx = context.WithValue(ctx, CtxI18nBundle, bundle)
 	ctx = context.WithValue(ctx, CtxI18nCatalog, catalog)
 	return ctx
 }
 
-func initMessageCatalog() map[string]*i18n.Message {
-	messageCatalog := make(map[string]*i18n.Message)
-	messageCatalog["unknown"] = &i18n.Message{
+func initMessageCatalog(logger *log.Logger) *MessageCatalog {
+	messages := make(map[string]*i18n.Message)
+	messages["unknown"] = &i18n.Message{
 		ID:    "ErrorUnknown",
 		Other: "Unknown error",
 	}
-	messageCatalog["email"] = &i18n.Message{
+	messages["email"] = &i18n.Message{
 		ID:    "ErrorEmail",
 		Other: "Please enter a valid email address.",
 	}
-	messageCatalog["Email-required"] = &i18n.Message{
+	messages["Email-required"] = &i18n.Message{
 		ID:    "ErrorEmailRequired",
 		Other: "Please enter an email address.",
 	}
-	messageCatalog["required"] = &i18n.Message{
+	messages["required"] = &i18n.Message{
 		ID:    "ErrorRequired",
 		Other: "Please enter a value",
 	}
-	messageCatalog["Password-required"] = &i18n.Message{
+	messages["Password-required"] = &i18n.Message{
 		ID:    "ErrorPasswordRequired",
 		Other: "Please enter a password.",
 	}
-	return messageCatalog
+	messages["TitleRequestConsent"] = &i18n.Message{
+		ID:    "TitleRequestConsent",
+		Other: "Application requests your consent",
+	}
+	messages["LabelSubmit"] = &i18n.Message{
+		ID:    "LabelSubmit",
+		Other: "Submit",
+	}
+	messages["LabelConsent"] = &i18n.Message{
+		ID:    "LabelConsent",
+		Other: "I hereby agree that the application may get the requested permissions.",
+	}
+	messages["IntroConsentRequested"] = &i18n.Message{
+		ID:    "IntroConsentRequested",
+		Other: "The <strong>{{ .client }}</strong> application wants your consent for the requested set of permissions.",
+	}
+	messages["IntroConsentMoreInformation"] = &i18n.Message{
+		ID:    "IntroConsentMoreInformation",
+		Other: "You can find more information about <strong>{{ .client }}</strong> at <a href=\"{{ .clientLink }}\">its description page</a>.",
+	}
+	messages["Scope-openid-Description"] = &i18n.Message{
+		ID:    "Scope-openid-Description",
+		Other: "Request information about your identity.",
+	}
+	messages["Scope-offline_access-Description"] = &i18n.Message{
+		ID:    "Scope-offline_access-Description",
+		Other: "Keep access to your information until you revoke the permission.",
+	}
+	messages["Scope-profile-Description"] = &i18n.Message{
+		ID:    "Scope-profile-Description",
+		Other: "Access your user profile information including your name, birth date and locale.",
+	}
+	messages["Scope-email-Description"] = &i18n.Message{
+		ID:    "Scope-email-Description",
+		Other: "Access your primary email address.",
+	}
+	return &MessageCatalog{messages: messages, logger: logger}
 }