You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
3.2 KiB
90 lines
3.2 KiB
#ifndef HEADER_CURL_WS_H
|
|
#define HEADER_CURL_WS_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
* SPDX-License-Identifier: curl
|
|
*
|
|
***************************************************************************/
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef USE_WEBSOCKETS
|
|
|
|
#ifdef USE_HYPER
|
|
#define REQTYPE void
|
|
#else
|
|
#define REQTYPE struct dynbuf
|
|
#endif
|
|
|
|
/* a client-side WS frame decoder, parsing frame headers and
|
|
* payload, keeping track of current position and stats */
|
|
enum ws_dec_state {
|
|
WS_DEC_INIT,
|
|
WS_DEC_HEAD,
|
|
WS_DEC_PAYLOAD
|
|
};
|
|
|
|
struct ws_decoder {
|
|
int frame_age; /* zero */
|
|
int frame_flags; /* See the CURLWS_* defines */
|
|
curl_off_t payload_offset; /* the offset parsing is at */
|
|
curl_off_t payload_len;
|
|
unsigned char head[10];
|
|
int head_len, head_total;
|
|
enum ws_dec_state state;
|
|
};
|
|
|
|
/* a client-side WS frame encoder, generating frame headers and
|
|
* converting payloads, tracking remaining data in current frame */
|
|
struct ws_encoder {
|
|
curl_off_t payload_len; /* payload length of current frame */
|
|
curl_off_t payload_remain; /* remaining payload of current */
|
|
unsigned int xori; /* xor index */
|
|
unsigned char mask[4]; /* 32 bit mask for this connection */
|
|
unsigned char firstbyte; /* first byte of frame we encode */
|
|
bool contfragment; /* set TRUE if the previous fragment sent was not final */
|
|
};
|
|
|
|
/* A websocket connection with en- and decoder that treat frames
|
|
* and keep track of boundaries. */
|
|
struct websocket {
|
|
struct Curl_easy *data; /* used for write callback handling */
|
|
struct ws_decoder dec; /* decode of we frames */
|
|
struct ws_encoder enc; /* decode of we frames */
|
|
struct bufq recvbuf; /* raw data from the server */
|
|
struct bufq sendbuf; /* raw data to be sent to the server */
|
|
struct curl_ws_frame frame; /* the current WS FRAME received */
|
|
};
|
|
|
|
CURLcode Curl_ws_request(struct Curl_easy *data, REQTYPE *req);
|
|
CURLcode Curl_ws_accept(struct Curl_easy *data, const char *mem, size_t len);
|
|
size_t Curl_ws_writecb(char *buffer, size_t size, size_t nitems, void *userp);
|
|
void Curl_ws_done(struct Curl_easy *data);
|
|
CURLcode Curl_ws_disconnect(struct Curl_easy *data,
|
|
struct connectdata *conn,
|
|
bool dead_connection);
|
|
#else
|
|
#define Curl_ws_request(x,y) CURLE_OK
|
|
#define Curl_ws_done(x) Curl_nop_stmt
|
|
#define Curl_ws_free(x) Curl_nop_stmt
|
|
#endif
|
|
|
|
#endif /* HEADER_CURL_WS_H */
|