include link validity in sharing message

bot.go

@@ -18,7 +18,10 @@ type PhotoBot struct {
 }
 
 type TelegramBackend struct {
-	TokenGenerator   *TokenGenerator
+	TokenGenerator        *TokenGenerator
+	GlobalTokenValidity   int
+	PerAlbumTokenValidity int
+
 	WebPublicURL     string
 	ChatDB           *ChatDB
 	AuthorizedUsers  map[string]bool
@@ -283,7 +286,7 @@ func (bot *PhotoBot) handleShareCommand(message *tgbotapi.Message) {
 		tokenData.Entitlement = ""
 		token := bot.Telegram.TokenGenerator.NewToken(tokenData)
 		url := fmt.Sprintf("%s/s/%s/%s/album/", bot.Telegram.WebPublicURL, url.PathEscape(message.From.UserName), url.PathEscape(token))
-		bot.Telegram.replyWithMessage(message, bot.Telegram.Messages.SharedGlobal)
+		bot.Telegram.replyWithMessage(message, fmt.Sprintf(bot.Telegram.Messages.SharedGlobal, bot.Telegram.GlobalTokenValidity))
 		bot.Telegram.replyWithMessage(message, url)
 	} else {
 		// Album share
@@ -291,7 +294,7 @@ func (bot *PhotoBot) handleShareCommand(message *tgbotapi.Message) {
 		tokenData.Entitlement = albumName
 		token := bot.Telegram.TokenGenerator.NewToken(tokenData)
 		url := fmt.Sprintf("%s/s/%s/%s/album/%s/", bot.Telegram.WebPublicURL, url.PathEscape(message.From.UserName), url.PathEscape(token), url.PathEscape(albumName))
-		bot.Telegram.replyWithMessage(message, fmt.Sprintf(bot.Telegram.Messages.SharedAlbum, albumName))
+		bot.Telegram.replyWithMessage(message, fmt.Sprintf(bot.Telegram.Messages.SharedAlbum, albumName, bot.Telegram.PerAlbumTokenValidity))
 		bot.Telegram.replyWithMessage(message, url)
 	}
 }

main.go

@@ -41,8 +41,8 @@ func initConfig() {
 	viper.SetDefault("Telegram.Messages.InfoNoAlbum", "There is no album started, yet.")
 	viper.SetDefault("Telegram.Messages.NoUsername", "You need to set your Telegram username first!")
 	viper.SetDefault("Telegram.Messages.ThankYouMedia", "Got it, thanks!")
-	viper.SetDefault("Telegram.Messages.SharedAlbum", "Album %s shared:")
-	viper.SetDefault("Telegram.Messages.SharedGlobal", "Link to all albums:")
+	viper.SetDefault("Telegram.Messages.SharedAlbum", "The album %s can be reached with the following link. Link is valid for %d days.")
+	viper.SetDefault("Telegram.Messages.SharedGlobal", "All albums can be reached with the following link. Link is valid for %d days.")
 
 	// Telegram Commands
 	viper.SetDefault("Telegram.Commands.Help", "help")
@@ -229,6 +229,8 @@ func main() {
 		panic(err)
 	}
 	photoBot.Telegram.TokenGenerator = tokenGenerator
+	photoBot.Telegram.GlobalTokenValidity = viper.GetInt("Telegram.TokenGenerator.GlobalValidity")
+	photoBot.Telegram.PerAlbumTokenValidity = viper.GetInt("Telegram.TokenGenerator.PerAlbumValidity")
 
 	// Setup the web interface
 	var oidc OpenIdSettings = OpenIdSettings{