Harden the authorizer access to prevent crashesv1.8.1

1 files changed, 6 insertions, 0 deletions

diff --git a/telegram/commands.go b/telegram/commands.go
index b4920d4..b729973 100644
--- a/telegram/commands.go
+++ b/telegram/commands.go
@@ -244,6 +244,9 @@ func (c *Client) ProcessTransportCommand(cmdline string, resource string) string
 			return notEnoughArguments
 		}
 
+		c.locks.authorizerWriteLock.Lock()
+		defer c.locks.authorizerWriteLock.Unlock()
+
 		if cmd == "login" {
 			err := c.TryLogin(resource, args[0])
 			if err != nil {
@@ -324,10 +327,13 @@ func (c *Client) ProcessTransportCommand(cmdline string, resource string) string
 			lastname = rawCmdArguments(cmdline, 1)
 		}
 
+		c.locks.authorizerWriteLock.Lock()
 		if c.authorizer != nil && !c.authorizer.isClosed {
 			c.authorizer.FirstName <- firstname
 			c.authorizer.LastName <- lastname
+			c.locks.authorizerWriteLock.Unlock()
 		} else {
+			c.locks.authorizerWriteLock.Unlock()
 			if !c.Online() {
 				return notOnline
 			}