add helper to possible inaccessible messages to turn them into regula…

…r messages

custom_helpers.go

@@ -52,6 +52,16 @@ func (im InaccessibleMessage) Reply(b *Bot, text string, opts *SendMessageOpts)
 	return b.SendMessage(im.Chat.Id, text, opts)
 }
 
+// ToMessage is a helper function to simplify dealing with telegram's message nonsense.
+// It populates a standard message object with all of InaccessibleMessage's shared fields.
+func (im InaccessibleMessage) ToMessage() *Message {
+	return &Message{
+		MessageId: im.MessageId,
+		Date:      im.Date,
+		Chat:      im.Chat,
+	}
+}
+
 // SendMessage is a helper function to easily call Bot.SendMessage in a chat.
 func (c Chat) SendMessage(b *Bot, text string, opts *SendMessageOpts) (*Message, error) {
 	return b.SendMessage(c.Id, text, opts)

ext/context.go

@@ -15,7 +15,8 @@ type Context struct {
 	// such as admin checks.
 	Data map[string]interface{}
 
-	// EffectiveMessage is the message which triggered the update, if available (eg: update contains an accessible message).
+	// EffectiveMessage is the message which triggered the update, if available.
+	// If the message is an InaccessibleMessage (eg, from a callbackquery), the message contents may be inaccessible.
 	EffectiveMessage *gotgbot.Message
 	// EffectiveChat is the chat the update was triggered in, if possible.
 	EffectiveChat *gotgbot.Chat
@@ -71,10 +72,12 @@ func NewContext(update *gotgbot.Update, data map[string]interface{}) *Context {
 		user = &update.CallbackQuery.From
 
 		if update.CallbackQuery.Message != nil {
-			// Note: This check means that we do not populate the EffectiveMessage field in the case of an inacessible message.
-			m, ok := update.CallbackQuery.Message.(gotgbot.Message)
-			if ok {
+			switch m := update.CallbackQuery.Message.(type) {
+			case gotgbot.Message:
 				msg = &m
+			case gotgbot.InaccessibleMessage:
+				// Note: This conversion means that EffectiveMessage may not contain all Message fields
+				msg = m.ToMessage()
 			}
 
 			tmpC := update.CallbackQuery.Message.GetChat()