/*

 * libwebsockets - small server side websockets and web server implementation

 *

 * Copyright (C) 2010 - 2021 Andy Green <andy@warmcat.com>

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to

 * deal in the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 * sell copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

 * IN THE SOFTWARE.

 */

#include "private-lib-core.h"

void

lws_tls_session_tag_discrete(const char *vhname, const char *host,

            uint16_t port, char *buf, size_t len)

{

  /*

   * We have to include the vhost name in the session tag, since

   * different vhosts may make connections to the same endpoint using

   * different client certs.

   */

  lws_snprintf(buf, len, "%s_%s_%u", vhname, host, (unsigned int)port);

  lws_filename_purify_inplace(buf);

}

int

lws_tls_session_tag_from_wsi(struct lws *wsi, char *buf, size_t len)

{

  const char *host;

  if (!wsi)

    return 1;

  if (!wsi->stash)

    return 1;

  host = wsi->stash->cis[CIS_HOST];

  if (!host)

    host = wsi->stash->cis[CIS_ADDRESS];

  if (!host)

    return 1;

  lws_tls_session_tag_discrete(wsi->a.vhost->name, host, wsi->c_port,

             buf, len);

  return 0;

}