Revert "Update libwebsockets to 3.1 (plus UWP patch)"

This reverts commit 90210c48627692d281554d6185b5db17a86c852a.

1 files changed, 258 insertions, 0 deletions

diff --git a/thirdparty/libwebsockets/roles/http/private.h b/thirdparty/libwebsockets/roles/http/private.h
new file mode 100644
index 0000000000..5699914742
--- /dev/null
+++ b/thirdparty/libwebsockets/roles/http/private.h
@@ -0,0 +1,258 @@
+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010 - 2018 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
+ *
+ *  This is included from core/private.h if either H1 or H2 roles are
+ *  enabled
+ */
+
+#if defined(LWS_WITH_HTTP_PROXY)
+  #include <hubbub/hubbub.h>
+  #include <hubbub/parser.h>
+ #endif
+
+#define lwsi_role_http(wsi) (lwsi_role_h1(wsi) || lwsi_role_h2(wsi))
+
+enum http_version {
+	HTTP_VERSION_1_0,
+	HTTP_VERSION_1_1,
+	HTTP_VERSION_2
+};
+
+enum http_connection_type {
+	HTTP_CONNECTION_CLOSE,
+	HTTP_CONNECTION_KEEP_ALIVE
+};
+
+/*
+ * This is totally opaque to code using the library.  It's exported as a
+ * forward-reference pointer-only declaration; the user can use the pointer with
+ * other APIs to get information out of it.
+ */
+
+#if defined(LWS_WITH_ESP32)
+typedef uint16_t ah_data_idx_t;
+#else
+typedef uint32_t ah_data_idx_t;
+#endif
+
+struct lws_fragments {
+	ah_data_idx_t	offset;
+	uint16_t	len;
+	uint8_t		nfrag; /* which ah->frag[] continues this content, or 0 */
+	uint8_t		flags; /* only http2 cares */
+};
+
+#if defined(LWS_WITH_RANGES)
+enum range_states {
+	LWSRS_NO_ACTIVE_RANGE,
+	LWSRS_BYTES_EQ,
+	LWSRS_FIRST,
+	LWSRS_STARTING,
+	LWSRS_ENDING,
+	LWSRS_COMPLETED,
+	LWSRS_SYNTAX,
+};
+
+struct lws_range_parsing {
+	unsigned long long start, end, extent, agg, budget;
+	const char buf[128];
+	int pos;
+	enum range_states state;
+	char start_valid, end_valid, ctr, count_ranges, did_try, inside, send_ctr;
+};
+
+int
+lws_ranges_init(struct lws *wsi, struct lws_range_parsing *rp,
+		unsigned long long extent);
+int
+lws_ranges_next(struct lws_range_parsing *rp);
+void
+lws_ranges_reset(struct lws_range_parsing *rp);
+#endif
+
+/*
+ * these are assigned from a pool held in the context.
+ * Both client and server mode uses them for http header analysis
+ */
+
+struct allocated_headers {
+	struct allocated_headers *next; /* linked list */
+	struct lws *wsi; /* owner */
+	char *data; /* prepared by context init to point to dedicated storage */
+	ah_data_idx_t data_length;
+	/*
+	 * the randomly ordered fragments, indexed by frag_index and
+	 * lws_fragments->nfrag for continuation.
+	 */
+	struct lws_fragments frags[WSI_TOKEN_COUNT];
+	time_t assigned;
+	/*
+	 * for each recognized token, frag_index says which frag[] his data
+	 * starts in (0 means the token did not appear)
+	 * the actual header data gets dumped as it comes in, into data[]
+	 */
+	uint8_t frag_index[WSI_TOKEN_COUNT];
+
+#ifndef LWS_NO_CLIENT
+	char initial_handshake_hash_base64[30];
+#endif
+
+	uint32_t pos;
+	uint32_t http_response;
+	uint32_t current_token_limit;
+	int hdr_token_idx;
+
+	int16_t lextable_pos;
+
+	uint8_t in_use;
+	uint8_t nfrag;
+	char /*enum uri_path_states */ ups;
+	char /*enum uri_esc_states */ ues;
+
+	char esc_stash;
+	char post_literal_equal;
+	uint8_t /* enum lws_token_indexes */ parser_state;
+};
+
+
+
+#if defined(LWS_WITH_HTTP_PROXY)
+struct lws_rewrite {
+	hubbub_parser *parser;
+	hubbub_parser_optparams params;
+	const char *from, *to;
+	int from_len, to_len;
+	unsigned char *p, *end;
+	struct lws *wsi;
+};
+static LWS_INLINE int hstrcmp(hubbub_string *s, const char *p, int len)
+{
+	if ((int)s->len != len)
+		return 1;
+
+	return strncmp((const char *)s->ptr, p, len);
+}
+typedef hubbub_error (*hubbub_callback_t)(const hubbub_token *token, void *pw);
+LWS_EXTERN struct lws_rewrite *
+lws_rewrite_create(struct lws *wsi, hubbub_callback_t cb, const char *from, const char *to);
+LWS_EXTERN void
+lws_rewrite_destroy(struct lws_rewrite *r);
+LWS_EXTERN int
+lws_rewrite_parse(struct lws_rewrite *r, const unsigned char *in, int in_len);
+#endif
+
+struct lws_pt_role_http {
+	struct allocated_headers *ah_list;
+	struct lws *ah_wait_list;
+#ifdef LWS_WITH_CGI
+	struct lws_cgi *cgi_list;
+#endif
+	int ah_wait_list_length;
+	uint32_t ah_pool_length;
+
+	int ah_count_in_use;
+};
+
+struct lws_peer_role_http {
+	uint32_t count_ah;
+	uint32_t total_ah;
+};
+
+struct lws_vhost_role_http {
+	char http_proxy_address[128];
+	const struct lws_http_mount *mount_list;
+	const char *error_document_404;
+	unsigned int http_proxy_port;
+};
+
+#ifdef LWS_WITH_ACCESS_LOG
+struct lws_access_log {
+	char *header_log;
+	char *user_agent;
+	char *referrer;
+	unsigned long sent;
+	int response;
+};
+#endif
+
+struct _lws_http_mode_related {
+	struct lws *new_wsi_list;
+
+#if defined(LWS_WITH_HTTP_PROXY)
+	struct lws_rewrite *rw;
+#endif
+	struct allocated_headers *ah;
+	struct lws *ah_wait_list;
+
+	lws_filepos_t filepos;
+	lws_filepos_t filelen;
+	lws_fop_fd_t fop_fd;
+
+#if defined(LWS_WITH_RANGES)
+	struct lws_range_parsing range;
+	char multipart_content_type[64];
+#endif
+
+#ifdef LWS_WITH_ACCESS_LOG
+	struct lws_access_log access_log;
+#endif
+#ifdef LWS_WITH_CGI
+	struct lws_cgi *cgi; /* wsi being cgi master have one of these */
+#endif
+
+	enum http_version request_version;
+	enum http_connection_type connection_type;
+	lws_filepos_t tx_content_length;
+	lws_filepos_t tx_content_remain;
+	lws_filepos_t rx_content_length;
+	lws_filepos_t rx_content_remain;
+
+#if defined(LWS_WITH_HTTP_PROXY)
+	unsigned int perform_rewrite:1;
+#endif
+	unsigned int deferred_transaction_completed:1;
+};
+
+
+#ifndef LWS_NO_CLIENT
+enum lws_chunk_parser {
+	ELCP_HEX,
+	ELCP_CR,
+	ELCP_CONTENT,
+	ELCP_POST_CR,
+	ELCP_POST_LF,
+};
+#endif
+
+enum lws_parse_urldecode_results {
+	LPUR_CONTINUE,
+	LPUR_SWALLOW,
+	LPUR_FORBID,
+	LPUR_EXCESSIVE,
+};
+
+int
+lws_read_h1(struct lws *wsi, unsigned char *buf, lws_filepos_t len);
+
+void
+_lws_header_table_reset(struct allocated_headers *ah);
+
+LWS_EXTERN int
+_lws_destroy_ah(struct lws_context_per_thread *pt, struct allocated_headers *ah);