96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
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/* Websocket client implementation
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*
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* Copyright (c) 2016 Luís Fonseca <miguelluisfonseca@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _WEBSOCKET_H_
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#define _WEBSOCKET_H_
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#include "osapi.h"
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#include "user_interface.h"
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#include "espconn.h"
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#include "mem.h"
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#include <limits.h>
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#include <stdlib.h>
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#if defined(USES_SDK_BEFORE_V140)
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#define espconn_send espconn_sent
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#define espconn_secure_send espconn_secure_sent
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#endif
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struct ws_info;
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typedef void (*ws_onConnectionCallback)(struct ws_info *wsInfo);
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typedef void (*ws_onReceiveCallback)(struct ws_info *wsInfo, int len, char *message, int opCode);
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typedef void (*ws_onFailureCallback)(struct ws_info *wsInfo, int errorCode);
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typedef struct {
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char *key;
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char *value;
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} header_t;
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typedef struct ws_info {
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int connectionState;
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bool isSecure;
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char *hostname;
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int port;
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char *path;
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char *expectedSecKey;
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header_t *extraHeaders;
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struct espconn *conn;
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void *reservedData;
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int knownFailureCode;
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char *frameBuffer;
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int frameBufferLen;
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char *payloadBuffer;
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int payloadBufferLen;
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int payloadOriginalOpCode;
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os_timer_t timeoutTimer;
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int unhealthyPoints;
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ws_onConnectionCallback onConnection;
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ws_onReceiveCallback onReceive;
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ws_onFailureCallback onFailure;
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} ws_info;
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/*
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* Attempts to estabilish a websocket connection to the given url.
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*/
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void ws_connect(ws_info *wsInfo, const char *url);
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/*
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* Sends a message with a given opcode.
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*/
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void ws_send(ws_info *wsInfo, int opCode, const char *message, unsigned short length);
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/*
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* Disconnects existing conection and frees memory.
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*/
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void ws_close(ws_info *wsInfo);
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#endif // _WEBSOCKET_H_
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