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148 lines
4.2 KiB
148 lines
4.2 KiB
4 months ago
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/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <private-lib-core.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->lsp_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->lsp_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->lsp_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_WSI_ALREADY_DIED;
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}
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args.ch = wsi->lsp_channel;
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args.stdwsi = &wsi->parent->http.cgi->lsp->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_destroy_role_cgi(struct lws *wsi)
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{
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#if defined(LWS_WITH_ZLIB)
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if (!wsi->http.cgi)
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return 0;
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if (!wsi->http.cgi->gzip_init)
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return 0;
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inflateEnd(&wsi->http.cgi->inflate);
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wsi->http.cgi->gzip_init = 0;
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#endif
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return 0;
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}
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static void
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lws_cgi_sul_cb(lws_sorted_usec_list_t *sul)
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{
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struct lws_context_per_thread *pt = lws_container_of(sul,
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struct lws_context_per_thread, sul_cgi);
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lws_cgi_kill_terminated(pt);
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__lws_sul_insert(&pt->pt_sul_owner, &pt->sul_cgi,
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3 * LWS_US_PER_SEC);
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}
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static int
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rops_pt_init_destroy_cgi(struct lws_context *context,
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const struct lws_context_creation_info *info,
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struct lws_context_per_thread *pt, int destroy)
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{
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if (!destroy) {
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pt->sul_cgi.cb = lws_cgi_sul_cb;
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__lws_sul_insert(&pt->pt_sul_owner, &pt->sul_cgi,
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3 * LWS_US_PER_SEC);
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} else
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lws_dll2_remove(&pt->sul_cgi.list);
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return 0;
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}
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const 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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/* pt_init_destroy */ rops_pt_init_destroy_cgi,
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/* init_vhost */ NULL,
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/* destroy_vhost */ NULL,
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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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/* 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 */ rops_destroy_role_cgi,
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/* adoption_bind */ NULL,
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/* client_bind */ NULL,
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/* issue_keepalive */ NULL,
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/* adoption_cb clnt, srv */ { 0, 0 },
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/* rx_cb clnt, srv */ { 0, 0 },
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/* writeable cb clnt, srv */ { 0, 0 },
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/* close cb clnt, srv */ { 0, 0 },
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/* protocol_bind_cb c,s */ { 0, 0 },
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/* protocol_unbind_cb c,s */ { 0, 0 },
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/* file_handle */ 0,
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};
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