Add error handling for Auth

Author: ilyaglow

auth.go

@@ -9,13 +9,13 @@ import (
 )
 
 // Auth handles simple password authentication of a user
-func (c *Client) Auth(input *tgbotapi.Message) {
+func (c *Client) Auth(input *tgbotapi.Message) error {
 	msg := tgbotapi.NewMessage(input.Chat.ID, "")
 	msg.ReplyToMessageID = input.MessageID
 	if input.Text == c.Password {
 		err := c.registerUser(input.From)
 		if err != nil {
-			log.Fatal(err)
+			return err
 		}
 
 		log.Printf("Allowed users: %s", strings.Join(c.listUsers(), ","))
@@ -24,8 +24,10 @@ func (c *Client) Auth(input *tgbotapi.Message) {
 		msg.Text = "Wrong password"
 	}
 	if _, err := c.Bot.Send(msg); err != nil {
-		log.Println(err)
+		return err
 	}
+
+	return nil
 }
 
 // CheckAuth checks if user is allowed to interact with a bot

run.go

@@ -7,15 +7,15 @@ import (
 	"github.com/go-telegram-bot-api/telegram-bot-api"
 )
 
-const defaultTimeout = 20
+const defaultPollTimeout = 20
 
 // Run represents infinite function that waits for a message,
 // authenticate user and process task
 func (c *Client) Run() {
 	defer c.DB.Close()
 
 	u := tgbotapi.NewUpdate(0)
-	u.Timeout = defaultTimeout
+	u.Timeout = defaultPollTimeout
 
 	updates, err := c.Bot.GetUpdatesChan(u)
 	if err != nil {
@@ -59,7 +59,9 @@ func (c *Client) Run() {
 					}
 				}()
 			} else {
-				c.Auth(update.Message)
+				if err := c.Auth(update.Message); err != nil {
+					log.Println(err)
+				}
 			}
 		}
 	}