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rdg: Fallback to rpc if http status is not sent

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It seems MS RDG 2016+ does not send a http status code if
something with the request or configuration is not ok. It is worth
retrying with rpc in that case
This commit is contained in:
akarl10 2022-11-13 11:45:37 +01:00 committed by akallabeth
parent 0f60ac5988
commit 355c7ec72a
1 changed files with 26 additions and 1 deletions
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27
libfreerdp/core/gateway/rdg.c
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@ -1771,9 +1771,18 @@ static BOOL rdg_establish_data_connection(rdpRdg* rdg, rdpTls* tls, const char*
return FALSE;
response = http_response_recv(tls, TRUE);
/* MS RD Gateway seems to just terminate the tls connection without
* sending an answer if it is not happy with the http request */
if (!response)
{
WLog_INFO(TAG, "RD Gateway HTTP transport broken.");
http_context_enable_websocket_upgrade(rdg->http, FALSE);
if (rpcFallback)
*rpcFallback = TRUE;
credssp_auth_free(rdg->auth);
rdg->auth = NULL;
return FALSE;
}
StatusCode = http_response_get_status_code(response);
@ -1788,6 +1797,8 @@ static BOOL rdg_establish_data_connection(rdpRdg* rdg, rdpTls* tls, const char*
*rpcFallback = TRUE;
http_response_free(response);
credssp_auth_free(rdg->auth);
rdg->auth = NULL;
return FALSE;
}
default:
@ -1811,7 +1822,15 @@ static BOOL rdg_establish_data_connection(rdpRdg* rdg, rdpTls* tls, const char*
response = http_response_recv(tls, TRUE);
if (!response)
{
WLog_INFO(TAG, "RD Gateway HTTP transport broken.");
http_context_enable_websocket_upgrade(rdg->http, FALSE);
if (rpcFallback)
*rpcFallback = TRUE;
credssp_auth_free(rdg->auth);
rdg->auth = NULL;
return FALSE;
}
}
}
credssp_auth_free(rdg->auth);
@ -1828,7 +1847,13 @@ static BOOL rdg_establish_data_connection(rdpRdg* rdg, rdpTls* tls, const char*
response = http_response_recv(tls, TRUE);
if (!response)
{
WLog_INFO(TAG, "RD Gateway HTTP transport broken.");
http_context_enable_websocket_upgrade(rdg->http, FALSE);
if (rpcFallback)
*rpcFallback = TRUE;
return FALSE;
}
}
statusCode = http_response_get_status_code(response);