Update Files

Kinc/Sources/kinc/libs/core/cgi/CMakeLists.txt

@@ -0,0 +1,42 @@
+#
+# libwebsockets - small server side websockets and web server implementation
+#
+# Copyright (C) 2010 - 2020 Andy Green <andy@warmcat.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+# The strategy is to only export to PARENT_SCOPE
+#
+#  - changes to LIB_LIST
+#  - changes to SOURCES
+#  - includes via include_directories
+#
+# and keep everything else private
+
+include_directories(.)
+
+list(APPEND SOURCES
+	roles/cgi/cgi-server.c
+	roles/cgi/ops-cgi.c)
+
+#
+# Keep explicit parent scope exports at end
+#
+
+exports_to_parent_scope()

Kinc/Sources/kinc/libs/core/cgi/ops-cgi.c

@@ -0,0 +1,182 @@
+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <private-lib-core.h>
+
+static int
+rops_handle_POLLIN_cgi(struct lws_context_per_thread *pt, struct lws *wsi,
+		       struct lws_pollfd *pollfd)
+{
+	struct lws_cgi_args args;
+
+	assert(wsi->role_ops == &role_ops_cgi);
+
+	if (wsi->lsp_channel >= LWS_STDOUT &&
+	    !(pollfd->revents & pollfd->events & LWS_POLLIN))
+		return LWS_HPI_RET_PLEASE_CLOSE_ME;
+
+	if (wsi->lsp_channel == LWS_STDIN &&
+	    !(pollfd->revents & pollfd->events & LWS_POLLOUT))
+		return LWS_HPI_RET_PLEASE_CLOSE_ME;
+
+	if (wsi->lsp_channel == LWS_STDIN &&
+	    lws_change_pollfd(wsi, LWS_POLLOUT, 0)) {
+		lwsl_wsi_info(wsi, "failed at set pollfd");
+		return LWS_HPI_RET_WSI_ALREADY_DIED;
+	}
+
+	if (!wsi->parent) {
+		lwsl_wsi_debug(wsi, "stdwsi content with parent");
+
+		return LWS_HPI_RET_HANDLED;
+	}
+
+	if (!wsi->parent->http.cgi) {
+		lwsl_wsi_notice(wsi, "stdwsi content with deleted cgi object");
+
+		return LWS_HPI_RET_HANDLED;
+	}
+
+	if (!wsi->parent->http.cgi->lsp) {
+		lwsl_wsi_notice(wsi, "stdwsi content with reaped lsp");
+
+		return LWS_HPI_RET_HANDLED;
+	}
+
+	args.ch = wsi->lsp_channel;
+	args.stdwsi = &wsi->parent->http.cgi->lsp->stdwsi[0];
+	args.hdr_state = (enum lws_cgi_hdr_state)wsi->hdr_state;
+
+	lwsl_wsi_debug(wsi, "CGI LWS_STDOUT %p wsistate 0x%x",
+			    wsi->parent, wsi->wsistate);
+
+	if (user_callback_handle_rxflow(wsi->parent->a.protocol->callback,
+					wsi->parent, LWS_CALLBACK_CGI,
+					wsi->parent->user_space,
+					(void *)&args, 0))
+		return 1;
+
+	return LWS_HPI_RET_HANDLED;
+}
+
+static int
+rops_handle_POLLOUT_cgi(struct lws *wsi)
+{
+	return LWS_HP_RET_USER_SERVICE;
+}
+
+static int
+rops_destroy_role_cgi(struct lws *wsi)
+{
+#if defined(LWS_WITH_ZLIB)
+	if (!wsi->http.cgi)
+		return 0;
+	if (!wsi->http.cgi->gzip_init)
+		return 0;
+
+	inflateEnd(&wsi->http.cgi->inflate);
+	wsi->http.cgi->gzip_init = 0;
+#endif
+
+	return 0;
+}
+
+void
+lws_cgi_sul_cb(lws_sorted_usec_list_t *sul)
+{
+	struct lws_context_per_thread *pt = lws_container_of(sul,
+			struct lws_context_per_thread, sul_cgi);
+
+	lws_cgi_kill_terminated(pt);
+
+	if (pt->http.cgi_list)
+		lws_sul_schedule(pt->context, (int)(pt - pt->context->pt),
+				 &pt->sul_cgi, lws_cgi_sul_cb, 3 * LWS_US_PER_SEC);
+}
+
+static int
+rops_pt_init_destroy_cgi(struct lws_context *context,
+		    const struct lws_context_creation_info *info,
+		    struct lws_context_per_thread *pt, int destroy)
+{
+
+	lws_sul_cancel(&pt->sul_cgi);
+
+	return 0;
+}
+
+static int
+rops_close_role_cgi(struct lws_context_per_thread *pt, struct lws *wsi)
+{
+	if (wsi->parent && wsi->parent->http.cgi && wsi->parent->http.cgi->lsp)
+		lws_spawn_stdwsi_closed(wsi->parent->http.cgi->lsp, wsi);
+
+	return 0;
+}
+
+static const lws_rops_t rops_table_cgi[] = {
+	/*  1 */ { .pt_init_destroy	= rops_pt_init_destroy_cgi },
+	/*  2 */ { .handle_POLLIN	= rops_handle_POLLIN_cgi },
+	/*  3 */ { .handle_POLLOUT	= rops_handle_POLLOUT_cgi },
+	/*  4 */ { .close_role		= rops_close_role_cgi },
+	/*  5 */ { .destroy_role	= rops_destroy_role_cgi },
+};
+
+const struct lws_role_ops role_ops_cgi = {
+	/* role name */			"cgi",
+	/* alpn id */			NULL,
+
+	/* rops_table */		rops_table_cgi,
+	/* rops_idx */			{
+	  /* LWS_ROPS_check_upgrades */
+	  /* LWS_ROPS_pt_init_destroy */		0x01,
+	  /* LWS_ROPS_init_vhost */
+	  /* LWS_ROPS_destroy_vhost */			0x00,
+	  /* LWS_ROPS_service_flag_pending */
+	  /* LWS_ROPS_handle_POLLIN */			0x02,
+	  /* LWS_ROPS_handle_POLLOUT */
+	  /* LWS_ROPS_perform_user_POLLOUT */		0x30,
+	  /* LWS_ROPS_callback_on_writable */
+	  /* LWS_ROPS_tx_credit */			0x00,
+	  /* LWS_ROPS_write_role_protocol */
+	  /* LWS_ROPS_encapsulation_parent */		0x00,
+	  /* LWS_ROPS_alpn_negotiated */
+	  /* LWS_ROPS_close_via_role_protocol */	0x00,
+	  /* LWS_ROPS_close_role */
+	  /* LWS_ROPS_close_kill_connection */		0x40,
+	  /* LWS_ROPS_destroy_role */
+	  /* LWS_ROPS_adoption_bind */			0x50,
+	  /* LWS_ROPS_client_bind */
+	  /* LWS_ROPS_issue_keepalive */		0x00,
+					},
+
+	/* adoption_cb clnt, srv */	{ 0, 0 },
+	/* rx_cb clnt, srv */		{ 0, 0 },
+	/* writeable cb clnt, srv */	{ 0, 0 },
+	/* close cb clnt, srv */	{ 0, 0 },
+	/* protocol_bind_cb c,s */	{ 0, 0 },
+	/* protocol_unbind_cb c,s */	{ 0, 0 },
+
+	/* file_handle */		0,
+};

Kinc/Sources/kinc/libs/core/cgi/private-lib-roles-cgi.h

@@ -0,0 +1,93 @@
+ /*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * This is included from private-lib-core.h if LWS_ROLE_WS
+ */
+
+#if defined(LWS_WITH_ZLIB)
+#if defined(LWS_WITH_MINIZ)
+#include <miniz.h>
+#else
+#include <zlib.h>
+#endif
+#endif
+
+extern const struct lws_role_ops role_ops_cgi;
+
+#define lwsi_role_cgi(wsi) (wsi->role_ops == &role_ops_cgi)
+
+#define LWS_HTTP_CHUNK_HDR_SIZE 16
+
+enum {
+	SIGNIFICANT_HDR_CONTENT_LENGTH,		/* numeric */
+	SIGNIFICANT_HDR_LOCATION,
+	SIGNIFICANT_HDR_STATUS,			/* numeric */
+	SIGNIFICANT_HDR_TRANSFER_ENCODING,
+	SIGNIFICANT_HDR_CONTENT_ENCODING_GZIP,
+
+	SIGNIFICANT_HDR_COUNT
+};
+
+struct lws;
+
+/* wsi who is owns the cgi points to an lws_cgi */
+
+struct lws_cgi {
+	struct lws_cgi *cgi_list;
+
+	struct lws_spawn_piped		*lsp;
+	lws_sorted_usec_list_t		sul_grace;
+
+	struct lws *wsi; /* owner */
+	unsigned char *headers_buf;
+	unsigned char *headers_start;
+	unsigned char *headers_pos;
+	unsigned char *headers_dumped;
+	unsigned char *headers_end;
+
+	char summary[128];
+#if defined(LWS_WITH_ZLIB)
+	z_stream inflate;
+	uint8_t inflate_buf[1024];
+#endif
+
+	lws_filepos_t post_in_expected;
+	lws_filepos_t content_length;
+	lws_filepos_t content_length_seen;
+
+	pid_t	pi;
+
+	int match[SIGNIFICANT_HDR_COUNT];
+	char l[12];
+	int response_code;
+	int lp;
+
+	unsigned char being_closed:1;
+	unsigned char explicitly_chunked:1;
+	unsigned char cgi_transaction_over:1;
+	unsigned char implied_chunked:1;
+	unsigned char gzip_inflate:1;
+	unsigned char gzip_init:1;
+
+	unsigned char chunked_grace;
+};