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/* httpd_ws.h -WebSocket support functions
*
* Copyright (c) 1994-2018 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef HTTP_WS_H
#define HTTP_WS_H
#include <config.h>
#ifdef HAVE_WSLAY
#include <wslay/wslay.h>
#else /* !HAVE_WSLAY */
enum wslay_opcode {
WSLAY_TEXT_FRAME
};
#endif /* HAVE_WSLAY */
/* Supported WebSocket version for Upgrade */
#define WS_TOKEN "websocket"
#define WS_VERSION "13"
extern int ws_init(struct http_connection *conn, struct buf *serverinfo);
typedef int ws_data_callback(struct transaction_t *txn, enum wslay_opcode opcode,
struct buf *inbuf, struct buf *outbuf,
struct buf *logbuf);
extern int ws_start_channel(struct transaction_t *txn,
const char *sub_prot, ws_data_callback *data_cb);
extern void ws_add_resp_hdrs(struct transaction_t *txn);
extern void ws_input(struct transaction_t *txn);
extern void ws_send(struct transaction_t *txn, struct buf *outbuf);
#endif /* HTTP_WS_H */
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