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Send a 400 bad request for too large requests

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Lauri Kasanen 2024-06-14 12:15:16 +03:00
parent 9f7a6b58ce
commit ba6226e308
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1 changed files with 15 additions and 0 deletions
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15
common/network/websocket.c
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@ -1018,6 +1018,20 @@ static void send403(ws_ctx_t *ws_ctx, const char * const origip, const char * co
weblog(403, wsthread_handler_id, 0, origip, ip, "-", 1, "-", strlen(buf)); weblog(403, wsthread_handler_id, 0, origip, ip, "-", 1, "-", strlen(buf));
} }
static void send400(ws_ctx_t *ws_ctx, const char * const origip, const char * const ip,
const char *info) {
char buf[4096];
sprintf(buf, "HTTP/1.1 400 Bad Request\r\n"
"Server: KasmVNC/4.0\r\n"
"Connection: close\r\n"
"Content-type: text/plain\r\n"
"%s"
"\r\n"
"400 Bad Request%s", extra_headers ? extra_headers : "", info);
ws_send(ws_ctx, buf, strlen(buf));
weblog(400, wsthread_handler_id, 0, origip, ip, "-", 1, "-", strlen(buf));
}
static uint8_t ownerapi_post(ws_ctx_t *ws_ctx, const char *in, const char * const user, static uint8_t ownerapi_post(ws_ctx_t *ws_ctx, const char *in, const char * const user,
const char * const ip, const char * const origip) { const char * const ip, const char * const origip) {
char buf[4096], path[4096]; char buf[4096], path[4096];
@ -1701,6 +1715,7 @@ ws_ctx_t *do_handshake(int sock, char * const ip) {
break; break;
} else if (sizeof(handshake) <= (size_t)(offset + 1)) { } else if (sizeof(handshake) <= (size_t)(offset + 1)) {
handler_emsg("Oversized handshake\n"); handler_emsg("Oversized handshake\n");
send400(ws_ctx, "-", ip, ", too large");
free_ws_ctx(ws_ctx); free_ws_ctx(ws_ctx);
return NULL; return NULL;
} else if (9 == i) { } else if (9 == i) {