mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
498a4e2bd7
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer all now participate on a single sorted us list. The whole idea of polling wakes is thrown out, poll waits ignore the timeout field and always use infinite timeouts. Introduce a public api that can schedule its own callback from the event loop with us resolution (usually ms is all the platform can do). Upgrade timeouts and sequencer timeouts to also be able to use us resolution. Introduce a prepared fakewsi in the pt, so we don't have to allocate one on the heap when we need it. Directly handle vh-protocol timer if LWS_MAX_SMP == 1
134 lines
3.8 KiB
C
134 lines
3.8 KiB
C
/*
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* lws-minimal-raw-proxy-fallback
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*
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* Written in 2010-2019 by Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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* This demonstrates a normal http / https server which if it receives something
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* it can't make sense of at the start, falls back to becoming a raw tcp proxy
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* to a specified address and port.
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*
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* Incoming connections cause an outgoing connection to be initiated, and if
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* successfully established then traffic coming in one side is placed on a
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* ringbuffer and sent out the opposite side as soon as possible.
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*
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* If it receives expected packets for an http(s) connection, it acts like a
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* normal h1 / h2 webserver.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/types.h>
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#define LWS_PLUGIN_STATIC
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#include "../plugins/raw-proxy/protocol_lws_raw_proxy.c"
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static struct lws_protocols protocols[] = {
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LWS_PLUGIN_PROTOCOL_RAW_PROXY,
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{ NULL, NULL, 0, 0 } /* terminator */
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};
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static const struct lws_http_mount mount = {
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/* .mount_next */ NULL, /* linked-list "next" */
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/* .mountpoint */ "/", /* mountpoint URL */
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/* .origin */ "./mount-origin", /* serve from dir */
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/* .def */ "index.html", /* default filename */
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/* .protocol */ NULL,
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/* .cgienv */ NULL,
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/* .extra_mimetypes */ NULL,
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/* .interpret */ NULL,
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/* .cgi_timeout */ 0,
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/* .cache_max_age */ 0,
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/* .auth_mask */ 0,
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/* .cache_reusable */ 0,
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/* .cache_revalidate */ 0,
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/* .cache_intermediaries */ 0,
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/* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
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/* .mountpoint_len */ 1, /* char count */
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/* .basic_auth_login_file */ NULL,
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};
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static int interrupted;
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void sigint_handler(int sig)
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{
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interrupted = 1;
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}
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static struct lws_protocol_vhost_options pvo1 = {
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NULL,
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NULL,
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"onward", /* pvo name */
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"ipv4:127.0.0.1:22" /* pvo value */
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};
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static const struct lws_protocol_vhost_options pvo = {
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NULL, /* "next" pvo linked-list */
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&pvo1, /* "child" pvo linked-list */
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"raw-proxy", /* protocol name we belong to on this vhost */
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"" /* ignored */
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};
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int main(int argc, const char **argv)
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{
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int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE;
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struct lws_context_creation_info info;
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struct lws_context *context;
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char outward[256];
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const char *p;
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signal(SIGINT, sigint_handler);
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if ((p = lws_cmdline_option(argc, argv, "-d")))
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logs = atoi(p);
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lws_set_log_level(logs, NULL);
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lwsl_user("LWS minimal raw proxy fallback | visit http://localhost:7681\n");
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if ((p = lws_cmdline_option(argc, argv, "-r"))) {
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lws_strncpy(outward, p, sizeof(outward));
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pvo1.value = outward;
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}
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memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
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info.port = 7681;
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info.protocols = protocols;
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info.pvo = &pvo;
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info.mounts = &mount;
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info.error_document_404 = "/404.html";
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info.options =
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LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE |
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LWS_SERVER_OPTION_FALLBACK_TO_APPLY_LISTEN_ACCEPT_CONFIG;
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info.listen_accept_role = "raw-proxy";
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info.listen_accept_protocol = "raw-proxy";
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if (lws_cmdline_option(argc, argv, "-s")) {
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info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
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LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT;
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info.ssl_cert_filepath = "localhost-100y.cert";
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info.ssl_private_key_filepath = "localhost-100y.key";
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if (lws_cmdline_option(argc, argv, "-u"))
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info.options |= LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS;
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if (lws_cmdline_option(argc, argv, "-h"))
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info.options |= LWS_SERVER_OPTION_ALLOW_HTTP_ON_HTTPS_LISTENER;
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}
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context = lws_create_context(&info);
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if (!context) {
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lwsl_err("lws init failed\n");
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return 1;
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}
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while (n >= 0 && !interrupted)
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n = lws_service(context, 0);
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lws_context_destroy(context);
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return 0;
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}
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