onionserver/websockets.c

60 lines
1.9 KiB
C

/*
* This file is part of the Onion_test project.
* Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "websockets.h"
#include <errno.h>
#include <onion/log.h>
#include <stdio.h>
#include <string.h>
#include <usefull_macros.h>
#define BUFLEN 255
static onion_connection_status websocket_cont(_U_ void *data, onion_websocket *ws, ssize_t dlen){
FNAME();
char tmp[BUFLEN+1];
if(dlen > BUFLEN) dlen = BUFLEN;
int len = onion_websocket_read(ws, tmp, dlen);
if(len <= 0){
ONION_ERROR("Error reading data: %d: %s (%d)", errno, strerror(errno), dlen);
return OCS_NEED_MORE_DATA;
}
tmp[len] = 0;
DBG("WS: got %s", tmp);
onion_websocket_printf(ws, "Echo: %s", tmp);
ONION_INFO("Read from websocket: %d: %s", len, tmp);
return OCS_NEED_MORE_DATA;
}
onion_connection_status websocket_run(_U_ void *data, onion_request *req, onion_response *res){
FNAME();
onion_websocket *ws = onion_websocket_new(req, res);
if (!ws){
green("PROC\n");
DBG("Processed");
return OCS_PROCESSED;
}
DBG("WS ready");
green("RDY\n");
onion_websocket_printf(ws, "Hello from server. Write something to echo it");
onion_websocket_set_callback(ws, websocket_cont);
return OCS_WEBSOCKET;
}