static void vncws_send_handshake_response(VncState *vs, const char* key)
{
char combined_key[WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1];
unsigned char hash[SHA1_DIGEST_LEN];
size_t hash_size = sizeof(hash);
char *accept = NULL, *response = NULL;
gnutls_datum_t in;
int ret;
g_strlcpy(combined_key, key, WS_CLIENT_KEY_LEN + 1);
g_strlcat(combined_key, WS_GUID, WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1);
/* hash and encode it */
in.data = (void *)combined_key;
in.size = WS_CLIENT_KEY_LEN + WS_GUID_LEN;
ret = gnutls_fingerprint(GNUTLS_DIG_SHA1, &in, hash, &hash_size);
if (ret == GNUTLS_E_SUCCESS && hash_size <= SHA1_DIGEST_LEN) {
accept = g_base64_encode(hash, hash_size);
}
if (accept == NULL) {
VNC_DEBUG("Hashing Websocket combined key failed\n");
vnc_client_error(vs);
return;
}
response = g_strdup_printf(WS_HANDSHAKE, accept);
vnc_client_write_buf(vs, (const uint8_t *)response, strlen(response));
g_free(accept);
g_free(response);
vs->encode_ws = 1;
vnc_init_state(vs);
}
static void vncws_send_handshake_response(VncState *vs, const char* key)
{
char combined_key[WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1];
char *accept = NULL, *response = NULL;
Error *err = NULL;
g_strlcpy(combined_key, key, WS_CLIENT_KEY_LEN + 1);
g_strlcat(combined_key, WS_GUID, WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1);
/* hash and encode it */
if (qcrypto_hash_base64(QCRYPTO_HASH_ALG_SHA1,
combined_key,
WS_CLIENT_KEY_LEN + WS_GUID_LEN,
&accept,
&err) < 0) {
VNC_DEBUG("Hashing Websocket combined key failed %s\n",
error_get_pretty(err));
error_free(err);
vnc_client_error(vs);
return;
}
response = g_strdup_printf(WS_HANDSHAKE, accept);
vnc_client_write_buf(vs, (const uint8_t *)response, strlen(response));
g_free(accept);
g_free(response);
vs->encode_ws = 1;
vnc_init_state(vs);
}
