2011-01-22 12:51:57 +00:00
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/*
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* libwebsockets-test-client - libwebsockets test implementation
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*
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* Copyright (C) 2011 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <string.h>
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2013-02-11 14:32:02 +08:00
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#include <signal.h>
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2011-01-22 12:51:57 +00:00
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2014-03-29 08:05:07 +01:00
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#ifdef _WIN32
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#define random rand
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#else
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2014-03-29 07:43:38 +01:00
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#include <unistd.h>
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#endif
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2013-02-22 09:28:04 +08:00
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#ifdef CMAKE_BUILD
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#include "lws_config.h"
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#endif
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2011-01-22 12:51:57 +00:00
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#include "../lib/libwebsockets.h"
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2011-01-30 21:04:24 +00:00
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static unsigned int opts;
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2011-02-14 20:25:43 +00:00
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static int was_closed;
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2011-03-06 13:32:53 +00:00
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static int deny_deflate;
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2011-05-24 22:06:17 +01:00
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static int deny_mux;
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2011-05-24 22:06:17 +01:00
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static struct libwebsocket *wsi_mirror;
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2013-02-09 14:10:04 +08:00
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static int mirror_lifetime = 0;
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2014-01-27 12:37:47 +01:00
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static volatile int force_exit = 0;
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2013-09-20 20:26:12 +08:00
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static int longlived = 0;
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2011-01-30 21:04:24 +00:00
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2011-01-22 12:51:57 +00:00
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/*
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* This demo shows how to connect multiple websockets simultaneously to a
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* websocket server (there is no restriction on their having to be the same
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* server just it simplifies the demo).
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*
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* dumb-increment-protocol: we connect to the server and print the number
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2011-01-27 06:26:52 +00:00
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* we are given
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2011-01-22 12:51:57 +00:00
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*
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* lws-mirror-protocol: draws random circles, which are mirrored on to every
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2011-01-27 06:26:52 +00:00
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* client (see them being drawn in every browser
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* session also using the test server)
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2011-01-22 12:51:57 +00:00
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*/
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enum demo_protocols {
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PROTOCOL_DUMB_INCREMENT,
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PROTOCOL_LWS_MIRROR,
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/* always last */
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DEMO_PROTOCOL_COUNT
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};
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/* dumb_increment protocol */
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static int
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2012-04-09 15:09:01 +08:00
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callback_dumb_increment(struct libwebsocket_context *this,
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2011-02-14 09:14:25 +00:00
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struct libwebsocket *wsi,
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2011-01-22 12:51:57 +00:00
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enum libwebsocket_callback_reasons reason,
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void *user, void *in, size_t len)
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{
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switch (reason) {
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2013-09-20 20:26:12 +08:00
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case LWS_CALLBACK_CLIENT_ESTABLISHED:
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fprintf(stderr, "callback_dumb_increment: LWS_CALLBACK_CLIENT_ESTABLISHED\n");
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break;
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case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
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fprintf(stderr, "LWS_CALLBACK_CLIENT_CONNECTION_ERROR\n");
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was_closed = 1;
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break;
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2011-05-24 22:06:17 +01:00
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case LWS_CALLBACK_CLOSED:
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fprintf(stderr, "LWS_CALLBACK_CLOSED\n");
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was_closed = 1;
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break;
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2011-01-22 12:51:57 +00:00
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case LWS_CALLBACK_CLIENT_RECEIVE:
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2011-01-27 06:26:52 +00:00
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((char *)in)[len] = '\0';
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fprintf(stderr, "rx %d '%s'\n", (int)len, (char *)in);
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2011-01-22 12:51:57 +00:00
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break;
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2011-03-06 13:32:53 +00:00
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/* because we are protocols[0] ... */
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case LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED:
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2011-05-24 22:06:17 +01:00
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if ((strcmp(in, "deflate-stream") == 0) && deny_deflate) {
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fprintf(stderr, "denied deflate-stream extension\n");
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return 1;
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}
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2013-03-16 12:34:36 +08:00
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if ((strcmp(in, "deflate-frame") == 0) && deny_deflate) {
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fprintf(stderr, "denied deflate-frame extension\n");
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return 1;
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}
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2011-05-24 22:06:17 +01:00
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if ((strcmp(in, "x-google-mux") == 0) && deny_mux) {
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fprintf(stderr, "denied x-google-mux extension\n");
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return 1;
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}
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2011-03-06 13:32:53 +00:00
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break;
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2011-01-22 12:51:57 +00:00
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default:
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break;
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}
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return 0;
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}
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/* lws-mirror_protocol */
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static int
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2013-02-09 14:10:04 +08:00
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callback_lws_mirror(struct libwebsocket_context *context,
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2011-02-14 09:14:25 +00:00
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struct libwebsocket *wsi,
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2011-01-22 12:51:57 +00:00
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enum libwebsocket_callback_reasons reason,
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void *user, void *in, size_t len)
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{
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2011-01-27 06:26:52 +00:00
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unsigned char buf[LWS_SEND_BUFFER_PRE_PADDING + 4096 +
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LWS_SEND_BUFFER_POST_PADDING];
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2013-01-20 17:08:31 +08:00
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int l = 0;
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int n;
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2014-11-30 13:53:19 +08:00
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unsigned int rands[4];
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2011-01-27 06:26:52 +00:00
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2011-01-22 12:51:57 +00:00
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switch (reason) {
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2011-01-27 06:26:52 +00:00
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case LWS_CALLBACK_CLIENT_ESTABLISHED:
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2013-09-20 20:26:12 +08:00
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fprintf(stderr, "callback_lws_mirror: LWS_CALLBACK_CLIENT_ESTABLISHED\n");
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2014-11-30 13:53:19 +08:00
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libwebsockets_get_random(context, rands, sizeof(rands[0]));
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mirror_lifetime = 10 + (rands[0] & 1023);
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2013-09-20 20:26:12 +08:00
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/* useful to test single connection stability */
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if (longlived)
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mirror_lifetime += 50000;
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fprintf(stderr, "opened mirror connection with "
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"%d lifetime\n", mirror_lifetime);
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/*
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* mirror_lifetime is decremented each send, when it reaches
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* zero the connection is closed in the send callback.
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* When the close callback comes, wsi_mirror is set to NULL
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* so a new connection will be opened
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*/
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2011-01-27 06:26:52 +00:00
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/*
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* start the ball rolling,
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2011-01-27 06:36:39 +00:00
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* LWS_CALLBACK_CLIENT_WRITEABLE will come next service
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2011-01-27 06:26:52 +00:00
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*/
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2013-02-09 14:10:04 +08:00
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libwebsocket_callback_on_writable(context, wsi);
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2011-01-27 06:26:52 +00:00
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break;
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2013-09-20 20:26:12 +08:00
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case LWS_CALLBACK_CLOSED:
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fprintf(stderr, "mirror: LWS_CALLBACK_CLOSED mirror_lifetime=%d\n", mirror_lifetime);
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wsi_mirror = NULL;
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break;
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2011-01-22 12:51:57 +00:00
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case LWS_CALLBACK_CLIENT_RECEIVE:
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2011-01-27 06:26:52 +00:00
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/* fprintf(stderr, "rx %d '%s'\n", (int)len, (char *)in); */
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break;
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case LWS_CALLBACK_CLIENT_WRITEABLE:
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2014-11-30 13:53:19 +08:00
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for (n = 0; n < 1; n++) {
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libwebsockets_get_random(context, rands, sizeof(rands));
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2013-01-20 17:08:31 +08:00
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l += sprintf((char *)&buf[LWS_SEND_BUFFER_PRE_PADDING + l],
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2011-01-27 06:26:52 +00:00
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"c #%06X %d %d %d;",
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2014-11-30 13:53:19 +08:00
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(int)rands[0] & 0xffffff,
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(int)rands[1] % 500,
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(int)rands[2] % 250,
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(int)rands[3] % 24);
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}
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2011-01-27 06:26:52 +00:00
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2013-02-23 10:50:10 +08:00
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n = libwebsocket_write(wsi,
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2011-01-30 21:04:24 +00:00
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&buf[LWS_SEND_BUFFER_PRE_PADDING], l, opts | LWS_WRITE_TEXT);
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2011-01-27 06:26:52 +00:00
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2013-02-23 10:50:10 +08:00
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if (n < 0)
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return -1;
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if (n < l) {
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lwsl_err("Partial write LWS_CALLBACK_CLIENT_WRITEABLE\n");
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return -1;
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}
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2013-02-09 14:10:04 +08:00
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mirror_lifetime--;
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if (!mirror_lifetime) {
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fprintf(stderr, "closing mirror session\n");
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2013-02-11 14:08:50 +08:00
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return -1;
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2013-02-09 14:10:04 +08:00
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} else
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/* get notified as soon as we can write again */
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libwebsocket_callback_on_writable(context, wsi);
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2011-01-22 12:51:57 +00:00
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break;
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default:
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break;
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}
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return 0;
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}
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/* list of supported protocols and callbacks */
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static struct libwebsocket_protocols protocols[] = {
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2011-03-02 22:03:47 +00:00
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{
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2014-07-19 06:52:39 +08:00
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"dumb-increment-protocol,fake-nonexistant-protocol",
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2011-03-02 22:03:47 +00:00
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callback_dumb_increment,
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0,
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2013-02-06 21:10:16 +09:00
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20,
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2011-01-22 12:51:57 +00:00
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},
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2011-03-02 22:03:47 +00:00
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{
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2014-07-19 06:52:39 +08:00
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"fake-nonexistant-protocol,lws-mirror-protocol",
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2011-03-02 22:03:47 +00:00
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callback_lws_mirror,
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0,
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2013-02-09 14:07:32 +08:00
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128,
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2011-01-22 12:51:57 +00:00
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},
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2013-02-06 21:10:16 +09:00
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{ NULL, NULL, 0, 0 } /* end */
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2011-01-22 12:51:57 +00:00
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};
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2013-02-11 14:32:02 +08:00
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void sighandler(int sig)
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{
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force_exit = 1;
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}
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2011-01-22 12:51:57 +00:00
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static struct option options[] = {
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2011-01-27 06:26:52 +00:00
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{ "help", no_argument, NULL, 'h' },
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2013-01-10 22:28:59 +08:00
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{ "debug", required_argument, NULL, 'd' },
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2011-01-27 06:26:52 +00:00
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{ "port", required_argument, NULL, 'p' },
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{ "ssl", no_argument, NULL, 's' },
|
2011-02-09 08:49:14 +00:00
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{ "version", required_argument, NULL, 'v' },
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2011-03-06 13:32:53 +00:00
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{ "undeflated", no_argument, NULL, 'u' },
|
2011-05-24 22:06:17 +01:00
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{ "nomux", no_argument, NULL, 'n' },
|
2013-01-13 11:58:18 +08:00
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{ "longlived", no_argument, NULL, 'l' },
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2011-01-22 12:51:57 +00:00
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{ NULL, 0, 0, 0 }
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};
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int main(int argc, char **argv)
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{
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int n = 0;
|
2013-02-11 14:05:02 +08:00
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int ret = 0;
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2011-01-22 12:51:57 +00:00
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int port = 7681;
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int use_ssl = 0;
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struct libwebsocket_context *context;
|
2011-02-06 17:42:06 +00:00
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const char *address;
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2011-01-22 12:51:57 +00:00
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struct libwebsocket *wsi_dumb;
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2011-02-09 08:49:14 +00:00
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int ietf_version = -1; /* latest */
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2013-02-09 14:01:09 +08:00
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struct lws_context_creation_info info;
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memset(&info, 0, sizeof info);
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2011-01-27 06:26:52 +00:00
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2011-01-22 12:51:57 +00:00
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fprintf(stderr, "libwebsockets test client\n"
|
2013-01-10 22:28:59 +08:00
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"(C) Copyright 2010-2013 Andy Green <andy@warmcat.com> "
|
2011-01-22 12:51:57 +00:00
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"licensed under LGPL2.1\n");
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if (argc < 2)
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goto usage;
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while (n >= 0) {
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2013-01-21 09:53:35 +08:00
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n = getopt_long(argc, argv, "nuv:hsp:d:l", options, NULL);
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2011-01-22 12:51:57 +00:00
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if (n < 0)
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continue;
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switch (n) {
|
2013-01-10 22:28:59 +08:00
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case 'd':
|
2013-01-12 09:17:42 +08:00
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lws_set_log_level(atoi(optarg), NULL);
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2013-01-10 22:28:59 +08:00
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break;
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2011-01-22 12:51:57 +00:00
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case 's':
|
2011-01-27 06:26:52 +00:00
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use_ssl = 2; /* 2 = allow selfsigned */
|
2011-01-22 12:51:57 +00:00
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break;
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case 'p':
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port = atoi(optarg);
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break;
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2013-01-13 11:58:18 +08:00
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case 'l':
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longlived = 1;
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break;
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2011-02-09 08:49:14 +00:00
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case 'v':
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ietf_version = atoi(optarg);
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break;
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2011-03-06 13:32:53 +00:00
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case 'u':
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deny_deflate = 1;
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break;
|
2011-05-24 22:06:17 +01:00
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case 'n':
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deny_mux = 1;
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break;
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2011-01-22 12:51:57 +00:00
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|
case 'h':
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goto usage;
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}
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}
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|
2011-02-06 17:42:06 +00:00
|
|
|
if (optind >= argc)
|
|
|
|
goto usage;
|
|
|
|
|
2013-02-11 14:32:02 +08:00
|
|
|
signal(SIGINT, sighandler);
|
|
|
|
|
2011-02-06 17:42:06 +00:00
|
|
|
address = argv[optind];
|
|
|
|
|
2011-01-22 12:51:57 +00:00
|
|
|
/*
|
|
|
|
* create the websockets context. This tracks open connections and
|
|
|
|
* knows how to route any traffic and which protocol version to use,
|
|
|
|
* and if each connection is client or server side.
|
|
|
|
*
|
|
|
|
* For this client-only demo, we tell it to not listen on any port.
|
|
|
|
*/
|
|
|
|
|
2013-02-09 14:01:09 +08:00
|
|
|
info.port = CONTEXT_PORT_NO_LISTEN;
|
|
|
|
info.protocols = protocols;
|
2013-01-20 17:08:31 +08:00
|
|
|
#ifndef LWS_NO_EXTENSIONS
|
2013-02-13 09:29:26 +08:00
|
|
|
info.extensions = libwebsocket_get_internal_extensions();
|
2013-01-20 17:08:31 +08:00
|
|
|
#endif
|
2013-02-09 14:01:09 +08:00
|
|
|
info.gid = -1;
|
|
|
|
info.uid = -1;
|
|
|
|
|
|
|
|
context = libwebsocket_create_context(&info);
|
2011-01-22 12:51:57 +00:00
|
|
|
if (context == NULL) {
|
|
|
|
fprintf(stderr, "Creating libwebsocket context failed\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* create a client websocket using dumb increment protocol */
|
|
|
|
|
2011-01-27 06:26:52 +00:00
|
|
|
wsi_dumb = libwebsocket_client_connect(context, address, port, use_ssl,
|
2011-02-06 17:42:06 +00:00
|
|
|
"/", argv[optind], argv[optind],
|
2011-02-09 08:49:14 +00:00
|
|
|
protocols[PROTOCOL_DUMB_INCREMENT].name, ietf_version);
|
2011-01-22 12:51:57 +00:00
|
|
|
|
|
|
|
if (wsi_dumb == NULL) {
|
2013-09-20 20:26:12 +08:00
|
|
|
fprintf(stderr, "libwebsocket connect failed\n");
|
2013-02-11 14:05:02 +08:00
|
|
|
ret = 1;
|
|
|
|
goto bail;
|
2011-01-22 12:51:57 +00:00
|
|
|
}
|
|
|
|
|
2013-09-20 20:26:12 +08:00
|
|
|
fprintf(stderr, "Waiting for connect...\n");
|
2011-01-22 12:51:57 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* sit there servicing the websocket context to handle incoming
|
|
|
|
* packets, and drawing random circles on the mirror protocol websocket
|
2013-09-20 20:26:12 +08:00
|
|
|
* nothing happens until the client websocket connection is
|
|
|
|
* asynchronously established
|
2011-01-22 12:51:57 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
n = 0;
|
2013-02-11 14:32:02 +08:00
|
|
|
while (n >= 0 && !was_closed && !force_exit) {
|
2013-02-09 14:10:04 +08:00
|
|
|
n = libwebsocket_service(context, 10);
|
2011-01-22 12:51:57 +00:00
|
|
|
|
2012-07-20 12:58:38 +08:00
|
|
|
if (n < 0)
|
|
|
|
continue;
|
|
|
|
|
2013-02-09 14:10:04 +08:00
|
|
|
if (wsi_mirror)
|
|
|
|
continue;
|
2011-05-24 22:06:17 +01:00
|
|
|
|
2013-02-09 14:10:04 +08:00
|
|
|
/* create a client websocket using mirror protocol */
|
|
|
|
|
|
|
|
wsi_mirror = libwebsocket_client_connect(context,
|
|
|
|
address, port, use_ssl, "/",
|
|
|
|
argv[optind], argv[optind],
|
|
|
|
protocols[PROTOCOL_LWS_MIRROR].name, ietf_version);
|
|
|
|
|
|
|
|
if (wsi_mirror == NULL) {
|
|
|
|
fprintf(stderr, "libwebsocket "
|
2013-09-20 20:26:12 +08:00
|
|
|
"mirror connect failed\n");
|
2013-02-11 14:05:02 +08:00
|
|
|
ret = 1;
|
|
|
|
goto bail;
|
2011-05-24 22:06:17 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-02-11 14:05:02 +08:00
|
|
|
bail:
|
2011-02-14 20:25:43 +00:00
|
|
|
fprintf(stderr, "Exiting\n");
|
|
|
|
|
2011-01-23 16:50:33 +00:00
|
|
|
libwebsocket_context_destroy(context);
|
|
|
|
|
2013-02-11 14:05:02 +08:00
|
|
|
return ret;
|
2011-01-22 12:51:57 +00:00
|
|
|
|
|
|
|
usage:
|
|
|
|
fprintf(stderr, "Usage: libwebsockets-test-client "
|
2013-01-10 22:28:59 +08:00
|
|
|
"<server address> [--port=<p>] "
|
|
|
|
"[--ssl] [-k] [-v <ver>] "
|
2013-01-13 11:58:18 +08:00
|
|
|
"[-d <log bitfield>] [-l]\n");
|
2011-01-22 12:51:57 +00:00
|
|
|
return 1;
|
|
|
|
}
|