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/*
* lws-minimal-dbus-ws-proxy
*
* Written in 2010-2019 by Andy Green <andy@warmcat.com>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*
* This demonstrates a minimal session dbus server that uses the lws event loop,
* and allows proxying ws client connections via DBUS.
*/
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <libwebsockets.h>
#include <libwebsockets/lws-dbus.h>
#define LWS_PLUGIN_STATIC
#include "protocol_lws_minimal_dbus_ws_proxy.c"
static int interrupted;
static struct lws_protocols protocols[] = {
LWS_PLUGIN_PROTOCOL_MINIMAL_DBUS_WSPROXY,
LWS_PROTOCOL_LIST_TERM
};
/*
* we pass the dbus address to connect to proxy with from outside the
* protocol plugin... eg if built as a plugin for lwsws, you would instead
* set this pvo in the lwsws JSON config.
*/
static const struct lws_protocol_vhost_options pvo_ads = {
NULL,
NULL,
"ads", /* pvo name */
(void *)"unix:abstract=org.libwebsockets.wsclientproxy" /* pvo value */
};
static const struct lws_protocol_vhost_options pvo = {
NULL, /* "next" pvo linked-list */
&pvo_ads, /* "child" pvo linked-list */
"lws-minimal-dbus-wsproxy", /* protocol name we belong to on this vhost */
"" /* ignored */
};
void sigint_handler(int sig)
{
interrupted = 1;
}
int main(int argc, const char **argv)
{
static struct lws_context *context;
struct lws_context_creation_info info;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */ /* | LLL_THREAD */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS DBUS ws client proxy\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = protocols;
info.pvo = &pvo;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
/* lws event loop (default poll one) */
while (n >= 0 && !interrupted)
n = lws_service(context, 0);
lws_context_destroy(context);
lwsl_notice("Exiting cleanly\n");
return 0;
}
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