holograph commented on a change in pull request #271:
URL: https://github.com/apache/guacamole-server/pull/271#discussion_r413841973
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File path: src/guacd/connection.c
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@@ -278,10 +278,18 @@ static int guacd_route_connection(guacd_proc_map* map,
guac_socket* socket) {
proc = guacd_proc_map_retrieve(map, identifier);
new_process = 0;
- /* Warn if requested connection does not exist */
- if (proc == NULL)
- guacd_log(GUAC_LOG_INFO, "Connection \"%s\" does not exist.",
- identifier);
+ /* Warn and ward off client if requested connection does not exist */
+ if (proc == NULL) {
+ char message[2048];
+
+ snprintf(message, sizeof(message),
+ "Connection \"%s\" does not exist", identifier);
+
+ guacd_log(GUAC_LOG_INFO, message);
+ guac_protocol_send_error(socket, message,
+ GUAC_PROTOCOL_STATUS_CLIENT_BAD_REQUEST);
Review comment:
Yes, and yes:
* The current guacd with the current mainstream (Java) client will simply
error out due to socket read error;
* Once this is merged, the existing Java client will error out due to
"unexpected opcode", which amounts to the same thing;
* Once the fix for GUACAMOLE-1048 is hopefully merged, the client will
actually provide an honest-to-god error message :-)
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