mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-23 00:00:06 +01:00
aa816e98a9
Since new roles may be incompatible with http, add support for alpn names at the role struct, automatic generation of the default list of alpn names that servers advertise, and the ability to override the used alpn names per-vhost and per- client connection. This not only lets you modulate visibility or use of h2, but also enables vhosts that only offer non-http roles, as well as restricting http role vhosts to only alpn identifiers related to http roles.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010-2018 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 <private-libwebsockets.h>
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static int
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rops_handle_POLLIN_cgi(struct lws_context_per_thread *pt, struct lws *wsi,
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struct lws_pollfd *pollfd)
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{
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struct lws_cgi_args args;
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assert(wsi->role_ops == &role_ops_cgi);
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if (wsi->cgi_channel >= LWS_STDOUT &&
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!(pollfd->revents & pollfd->events & LWS_POLLIN))
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return LWS_HPI_RET_HANDLED;
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if (wsi->cgi_channel == LWS_STDIN &&
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!(pollfd->revents & pollfd->events & LWS_POLLOUT))
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return LWS_HPI_RET_HANDLED;
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if (wsi->cgi_channel == LWS_STDIN &&
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lws_change_pollfd(wsi, LWS_POLLOUT, 0)) {
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lwsl_info("failed at set pollfd\n");
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return LWS_HPI_RET_DIE;
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}
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args.ch = wsi->cgi_channel;
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args.stdwsi = &wsi->parent->cgi->stdwsi[0];
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args.hdr_state = wsi->hdr_state;
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lwsl_debug("CGI LWS_STDOUT %p wsistate 0x%x\n",
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wsi->parent, wsi->wsistate);
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if (user_callback_handle_rxflow(wsi->parent->protocol->callback,
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wsi->parent, LWS_CALLBACK_CGI,
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wsi->parent->user_space,
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(void *)&args, 0))
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return 1;
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return LWS_HPI_RET_HANDLED;
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}
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static int
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rops_handle_POLLOUT_cgi(struct lws *wsi)
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{
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return LWS_HP_RET_USER_SERVICE;
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}
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static int
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rops_periodic_checks_cgi(struct lws_context *context, int tsi, time_t now)
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{
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struct lws_context_per_thread *pt = &context->pt[tsi];
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lws_cgi_kill_terminated(pt);
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return 0;
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}
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struct lws_role_ops role_ops_cgi = {
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/* role name */ "cgi",
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/* alpn id */ NULL,
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/* check_upgrades */ NULL,
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/* init_context */ NULL,
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/* init_vhost */ NULL,
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/* periodic_checks */ rops_periodic_checks_cgi,
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/* service_flag_pending */ NULL,
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/* handle_POLLIN */ rops_handle_POLLIN_cgi,
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/* handle_POLLOUT */ rops_handle_POLLOUT_cgi,
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/* perform_user_POLLOUT */ NULL,
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/* callback_on_writable */ NULL,
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/* tx_credit */ NULL,
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/* write_role_protocol */ NULL,
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/* rxflow_cache */ NULL,
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/* encapsulation_parent */ NULL,
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/* alpn_negotiated */ NULL,
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/* close_via_role_protocol */ NULL,
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/* close_role */ NULL,
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/* close_kill_connection */ NULL,
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/* destroy_role */ NULL,
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/* writeable cb clnt, srv */ { 0, 0 },
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/* close cb clnt, srv */ { 0, 0 },
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};
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