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/***************************************************************************
* _ _ ____ _
* 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 "test.h"
#ifdef USE_WEBSOCKETS
#if 0
static int ping(CURL *curl, const char *send_payload)
{
size_t sent;
CURLcode result =
curl_ws_send(curl, send_payload, strlen(send_payload), &sent, CURLWS_PING);
fprintf(stderr,
"ws: curl_ws_send returned %u, sent %u\n", (int)result, (int)sent);
return (int)result;
}
static int recv_pong(CURL *curl, const char *exected_payload)
{
size_t rlen;
unsigned int rflags;
char buffer[256];
CURLcode result =
curl_ws_recv(curl, buffer, sizeof(buffer), &rlen, &rflags);
if(rflags & CURLWS_PONG) {
int same = 0;
fprintf(stderr, "ws: got PONG back\n");
if(rlen == strlen(exected_payload)) {
if(!memcmp(exected_payload, buffer, rlen)) {
fprintf(stderr, "ws: got the same payload back\n");
same = 1;
}
}
if(!same)
fprintf(stderr, "ws: did NOT get the same payload back\n");
}
else {
fprintf(stderr, "recv_pong: got %u bytes rflags %x\n", (int)rlen, rflags);
}
fprintf(stderr, "ws: curl_ws_recv returned %u, received %u\n", (int)result,
rlen);
return (int)result;
}
/* just close the connection */
static void websocket_close(CURL *curl)
{
size_t sent;
CURLcode result =
curl_ws_send(curl, "", 0, &sent, CURLWS_CLOSE);
fprintf(stderr,
"ws: curl_ws_send returned %u, sent %u\n", (int)result, (int)sent);
}
static void websocket(CURL *curl)
{
int i = 0;
fprintf(stderr, "ws: websocket() starts\n");
do {
if(ping(curl, "foobar"))
return;
if(recv_pong(curl, "foobar"))
return;
sleep(2);
} while(i++ < 10);
websocket_close(curl);
}
#endif
static size_t writecb(char *b, size_t size, size_t nitems, void *p)
{
CURL *easy = p;
unsigned char *buffer = (unsigned char *)b;
size_t i;
size_t sent;
unsigned char pong[] = {
0x8a, 0x0
};
size_t incoming = nitems;
fprintf(stderr, "Called CURLOPT_WRITEFUNCTION with %u bytes: ",
(int)nitems);
for(i = 0; i < nitems; i++)
fprintf(stderr, "%02x ", (unsigned char)buffer[i]);
fprintf(stderr, "\n");
(void)size;
if(buffer[0] == 0x89) {
CURLcode result;
fprintf(stderr, "send back a simple PONG\n");
result = curl_ws_send(easy, pong, 2, &sent, 0, 0);
if(result)
nitems = 0;
}
if(nitems != incoming)
fprintf(stderr, "returns error from callback\n");
return nitems;
}
int test(char *URL)
{
CURL *curl;
CURLcode res = CURLE_OK;
global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, URL);
/* use the callback style */
curl_easy_setopt(curl, CURLOPT_USERAGENT, "webbie-sox/3");
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(curl, CURLOPT_WS_OPTIONS, CURLWS_RAW_MODE);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writecb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl);
res = curl_easy_perform(curl);
fprintf(stderr, "curl_easy_perform() returned %u\n", (int)res);
#if 0
if(res == CURLE_OK)
websocket(curl);
#endif
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_global_cleanup();
return (int)res;
}
#else /* no websockets */
NO_SUPPORT_BUILT_IN
#endif
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