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-rw-r--r--thirdparty/lws/handshake.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/thirdparty/lws/handshake.c b/thirdparty/lws/handshake.c
deleted file mode 100644
index bc7609d920..0000000000
--- a/thirdparty/lws/handshake.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation:
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include "private-libwebsockets.h"
-
-/*
- * -04 of the protocol (actually the 80th version) has a radically different
- * handshake. The 04 spec gives the following idea
- *
- * The handshake from the client looks as follows:
- *
- * GET /chat HTTP/1.1
- * Host: server.example.com
- * Upgrade: websocket
- * Connection: Upgrade
- * Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
- * Sec-WebSocket-Origin: http://example.com
- * Sec-WebSocket-Protocol: chat, superchat
- * Sec-WebSocket-Version: 4
- *
- * The handshake from the server looks as follows:
- *
- * HTTP/1.1 101 Switching Protocols
- * Upgrade: websocket
- * Connection: Upgrade
- * Sec-WebSocket-Accept: me89jWimTRKTWwrS3aRrL53YZSo=
- * Sec-WebSocket-Nonce: AQIDBAUGBwgJCgsMDQ4PEC==
- * Sec-WebSocket-Protocol: chat
- */
-
-#ifndef min
-#define min(a, b) ((a) < (b) ? (a) : (b))
-#endif
-
-/*
- * We have to take care about parsing because the headers may be split
- * into multiple fragments. They may contain unknown headers with arbitrary
- * argument lengths. So, we parse using a single-character at a time state
- * machine that is completely independent of packet size.
- *
- * Returns <0 for error or length of chars consumed from buf (up to len)
- */
-
-LWS_VISIBLE int
-lws_read(struct lws *wsi, unsigned char *buf, lws_filepos_t len)
-{
- unsigned char *last_char, *oldbuf = buf;
- lws_filepos_t body_chunk_len;
- size_t n;
-
- switch (wsi->state) {
-#ifdef LWS_WITH_HTTP2
- case LWSS_HTTP2_AWAIT_CLIENT_PREFACE:
- case LWSS_HTTP2_ESTABLISHED_PRE_SETTINGS:
- case LWSS_HTTP2_ESTABLISHED:
- n = 0;
- //lwsl_debug("%s: starting new block of %d\n", __func__, (int)len);
- /*
- * wsi here is always the network connection wsi, not a stream
- * wsi.
- */
- while (n < len) {
- /*
- * we were accepting input but now we stopped doing so
- */
- if (lws_is_flowcontrolled(wsi)) {
- lws_rxflow_cache(wsi, buf, n, len);
-
- return 1;
- }
-
- /* account for what we're using in rxflow buffer */
- if (wsi->rxflow_buffer) {
- wsi->rxflow_pos++;
- assert(wsi->rxflow_pos <= wsi->rxflow_len);
- }
-
- if (lws_h2_parser(wsi, buf[n++])) {
- lwsl_debug("%s: http2_parser bailed\n", __func__);
- goto bail;
- }
- }
- lwsl_debug("%s: used up block of %d\n", __func__, (int)len);
- break;
-#endif
-
- case LWSS_HTTP_ISSUING_FILE:
- return 0;
-
- case LWSS_CLIENT_HTTP_ESTABLISHED:
- break;
-
- case LWSS_HTTP:
- wsi->hdr_parsing_completed = 0;
-
- /* fallthru */
-
- case LWSS_HTTP_HEADERS:
- if (!wsi->u.hdr.ah) {
- lwsl_err("%s: LWSS_HTTP_HEADERS: NULL ah\n", __func__);
- assert(0);
- }
- lwsl_parser("issuing %d bytes to parser\n", (int)len);
-
- lwsl_hexdump(buf, (size_t)len);
-
- if (lws_handshake_client(wsi, &buf, (size_t)len))
- goto bail;
-
- last_char = buf;
- if (lws_handshake_server(wsi, &buf, (size_t)len))
- /* Handshake indicates this session is done. */
- goto bail;
-
- /* we might have transitioned to RAW */
- if (wsi->mode == LWSCM_RAW)
- /* we gave the read buffer to RAW handler already */
- goto read_ok;
-
- /*
- * It's possible that we've exhausted our data already, or
- * rx flow control has stopped us dealing with this early,
- * but lws_handshake_server doesn't update len for us.
- * Figure out how much was read, so that we can proceed
- * appropriately:
- */
- len -= (buf - last_char);
- lwsl_debug("%s: thinks we have used %ld\n", __func__, (long)len);
-
- if (!wsi->hdr_parsing_completed)
- /* More header content on the way */
- goto read_ok;
-
- switch (wsi->state) {
- case LWSS_HTTP:
- case LWSS_HTTP_HEADERS:
- goto read_ok;
- case LWSS_HTTP_ISSUING_FILE:
- goto read_ok;
- case LWSS_HTTP_BODY:
- wsi->u.http.rx_content_remain =
- wsi->u.http.rx_content_length;
- if (wsi->u.http.rx_content_remain)
- goto http_postbody;
-
- /* there is no POST content */
- goto postbody_completion;
- default:
- break;
- }
- break;
-
- case LWSS_HTTP_BODY:
-http_postbody:
- //lwsl_notice("http post body\n");
- while (len && wsi->u.http.rx_content_remain) {
- /* Copy as much as possible, up to the limit of:
- * what we have in the read buffer (len)
- * remaining portion of the POST body (content_remain)
- */
- body_chunk_len = min(wsi->u.http.rx_content_remain, len);
- wsi->u.http.rx_content_remain -= body_chunk_len;
- len -= body_chunk_len;
-#ifdef LWS_WITH_CGI
- if (wsi->cgi) {
- struct lws_cgi_args args;
-
- args.ch = LWS_STDIN;
- args.stdwsi = &wsi->cgi->stdwsi[0];
- args.data = buf;
- args.len = body_chunk_len;
-
- /* returns how much used */
- n = user_callback_handle_rxflow(
- wsi->protocol->callback,
- wsi, LWS_CALLBACK_CGI_STDIN_DATA,
- wsi->user_space,
- (void *)&args, 0);
- if ((int)n < 0)
- goto bail;
- } else {
-#endif
- n = wsi->protocol->callback(wsi,
- LWS_CALLBACK_HTTP_BODY, wsi->user_space,
- buf, (size_t)body_chunk_len);
- if (n)
- goto bail;
- n = (size_t)body_chunk_len;
-#ifdef LWS_WITH_CGI
- }
-#endif
- buf += n;
-
- if (wsi->u.http.rx_content_remain) {
- lws_set_timeout(wsi, PENDING_TIMEOUT_HTTP_CONTENT,
- wsi->context->timeout_secs);
- break;
- }
- /* he sent all the content in time */
-postbody_completion:
-#ifdef LWS_WITH_CGI
- /*
- * If we're running a cgi, we can't let him off the
- * hook just because he sent his POST data
- */
- if (wsi->cgi)
- lws_set_timeout(wsi, PENDING_TIMEOUT_CGI,
- wsi->context->timeout_secs);
- else
-#endif
- lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
-#ifdef LWS_WITH_CGI
- if (!wsi->cgi)
-#endif
- {
- lwsl_notice("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
- n = wsi->protocol->callback(wsi,
- LWS_CALLBACK_HTTP_BODY_COMPLETION,
- wsi->user_space, NULL, 0);
- if (n)
- goto bail;
-
- if (wsi->http2_substream)
- wsi->state = LWSS_HTTP2_ESTABLISHED;
- }
-
- break;
- }
- break;
-
- case LWSS_ESTABLISHED:
- case LWSS_AWAITING_CLOSE_ACK:
- case LWSS_WAITING_TO_SEND_CLOSE_NOTIFICATION:
- case LWSS_SHUTDOWN:
- if (lws_handshake_client(wsi, &buf, (size_t)len))
- goto bail;
- switch (wsi->mode) {
- case LWSCM_WS_SERVING:
-
- if (lws_interpret_incoming_packet(wsi, &buf, (size_t)len) < 0) {
- lwsl_info("interpret_incoming_packet has bailed\n");
- goto bail;
- }
- break;
- }
- break;
- default:
- lwsl_err("%s: Unhandled state %d\n", __func__, wsi->state);
- break;
- }
-
-read_ok:
- /* Nothing more to do for now */
- lwsl_info("%s: read_ok, used %ld\n", __func__, (long)(buf - oldbuf));
-
- return buf - oldbuf;
-
-bail:
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS);
-
- return -1;
-}
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