Add leave! command to leave group as owner

telegram/commands.go

@@ -74,6 +74,7 @@ var chatCommands = map[string]command{
 	"unban":      command{"id or @username", "unbans @username in current chat (and devotes from admins)"},
 	"promote":    command{"id or @username [title]", "promote user to admin in current chat"},
 	"leave":      command{"", "leave current chat"},
+	"leave!":     command{"", "leave current chat (for owners)"},
 	"close":      command{"", "close current secret chat"},
 	"delete":     command{"", "delete current chat from chat list"},
 	"members":    command{"[query]", "search members [by optional query] in current chat (requires admin rights)"},
@@ -159,8 +160,8 @@ func rawCmdArguments(cmdline string, start uint8) (string) {
 	return ""
 }
 
-func (c *Client) unsubscribe(chatID int64) {
-	gateway.SendPresence(
+func (c *Client) unsubscribe(chatID int64) error {
+	return gateway.SendPresence(
 		c.xmpp,
 		c.jid,
 		gateway.SPFrom(strconv.FormatInt(chatID, 10)),
@@ -728,7 +729,23 @@ func (c *Client) ProcessChatCommand(chatID int64, cmdline string) (string, bool)
 			return err.Error(), true
 		}
 
-		c.unsubscribe(chatID)
+		err = c.unsubscribe(chatID)
+		if err != nil {
+			return err.Error(), true
+		}
+	// leave current chat (for owners)
+	case "leave!":
+		_, err := c.client.DeleteChat(&client.DeleteChatRequest{
+			ChatId: chatID,
+		})
+		if err != nil {
+			return err.Error(), true
+		}
+
+		err = c.unsubscribe(chatID)
+		if err != nil {
+			return err.Error(), true
+		}
 	// close secret chat
 	case "close":
 		chat, _, err := c.GetContactByID(chatID, nil)
@@ -746,7 +763,10 @@ func (c *Client) ProcessChatCommand(chatID int64, cmdline string) (string, bool)
 				return err.Error(), true
 			}
 
-			c.unsubscribe(chatID)
+			err = c.unsubscribe(chatID)
+			if err != nil {
+				return err.Error(), true
+			}
 		}
 	// delete current chat
 	case "delete":
@@ -759,7 +779,10 @@ func (c *Client) ProcessChatCommand(chatID int64, cmdline string) (string, bool)
 			return err.Error(), true
 		}
 
-		c.unsubscribe(chatID)
+		err = c.unsubscribe(chatID)
+		if err != nil {
+			return err.Error(), true
+		}
 	// message search
 	case "search":
 		var limit int32 = 100