From cf741b0dbf59ca71f49759e04e774bb670fde6b5 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 21 Feb 2024 14:41:20 +0100
Subject: [PATCH 1/9] Imported Url parser from src/http/ngx_http_parse.c from
NGINX
---
src/utility/LICENSE | 23 +
src/utility/http_parser.c | 2470 +++++++++++++++++++++++++++++++++++++
src/utility/http_parser.h | 432 +++++++
3 files changed, 2925 insertions(+)
create mode 100644 src/utility/LICENSE
create mode 100644 src/utility/http_parser.c
create mode 100644 src/utility/http_parser.h
diff --git a/src/utility/LICENSE b/src/utility/LICENSE
new file mode 100644
index 0000000..5baf7c0
--- /dev/null
+++ b/src/utility/LICENSE
@@ -0,0 +1,23 @@
+http_parser.c is based on src/http/ngx_http_parse.c from NGINX copyright
+Igor Sysoev.
+
+Additional changes are licensed under the same terms as NGINX and
+copyright Joyent, Inc. and other Node contributors. All rights reserved.
+
+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.
diff --git a/src/utility/http_parser.c b/src/utility/http_parser.c
new file mode 100644
index 0000000..b6bd43e
--- /dev/null
+++ b/src/utility/http_parser.c
@@ -0,0 +1,2470 @@
+/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
+ *
+ * Additional changes are licensed under the same terms as NGINX and
+ * copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * 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 "http_parser.h"
+#include <assert.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+#ifndef ULLONG_MAX
+# define ULLONG_MAX ((uint64_t) -1) /* 2^64-1 */
+#endif
+
+#ifndef MIN
+# define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+
+#ifndef BIT_AT
+# define BIT_AT(a, i) \
+ (!!((unsigned int) (a)[(unsigned int) (i) >> 3] & \
+ (1 << ((unsigned int) (i) & 7))))
+#endif
+
+#ifndef ELEM_AT
+# define ELEM_AT(a, i, v) ((unsigned int) (i) < ARRAY_SIZE(a) ? (a)[(i)] : (v))
+#endif
+
+#define SET_ERRNO(e) \
+do { \
+ parser->http_errno = (e); \
+} while(0)
+
+#define CURRENT_STATE() p_state
+#define UPDATE_STATE(V) p_state = (enum state) (V);
+#define RETURN(V) \
+do { \
+ parser->state = CURRENT_STATE(); \
+ return (V); \
+} while (0);
+#define REEXECUTE() \
+ goto reexecute; \
+
+
+#ifdef __GNUC__
+# define LIKELY(X) __builtin_expect(!!(X), 1)
+# define UNLIKELY(X) __builtin_expect(!!(X), 0)
+#else
+# define LIKELY(X) (X)
+# define UNLIKELY(X) (X)
+#endif
+
+
+/* Run the notify callback FOR, returning ER if it fails */
+#define CALLBACK_NOTIFY_(FOR, ER) \
+do { \
+ assert(HTTP_PARSER_ERRNO(parser) == HPE_OK); \
+ \
+ if (LIKELY(settings->on_##FOR)) { \
+ parser->state = CURRENT_STATE(); \
+ if (UNLIKELY(0 != settings->on_##FOR(parser))) { \
+ SET_ERRNO(HPE_CB_##FOR); \
+ } \
+ UPDATE_STATE(parser->state); \
+ \
+ /* We either errored above or got paused; get out */ \
+ if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) { \
+ return (ER); \
+ } \
+ } \
+} while (0)
+
+/* Run the notify callback FOR and consume the current byte */
+#define CALLBACK_NOTIFY(FOR) CALLBACK_NOTIFY_(FOR, p - data + 1)
+
+/* Run the notify callback FOR and don't consume the current byte */
+#define CALLBACK_NOTIFY_NOADVANCE(FOR) CALLBACK_NOTIFY_(FOR, p - data)
+
+/* Run data callback FOR with LEN bytes, returning ER if it fails */
+#define CALLBACK_DATA_(FOR, LEN, ER) \
+do { \
+ assert(HTTP_PARSER_ERRNO(parser) == HPE_OK); \
+ \
+ if (FOR##_mark) { \
+ if (LIKELY(settings->on_##FOR)) { \
+ parser->state = CURRENT_STATE(); \
+ if (UNLIKELY(0 != \
+ settings->on_##FOR(parser, FOR##_mark, (LEN)))) { \
+ SET_ERRNO(HPE_CB_##FOR); \
+ } \
+ UPDATE_STATE(parser->state); \
+ \
+ /* We either errored above or got paused; get out */ \
+ if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) { \
+ return (ER); \
+ } \
+ } \
+ FOR##_mark = NULL; \
+ } \
+} while (0)
+
+/* Run the data callback FOR and consume the current byte */
+#define CALLBACK_DATA(FOR) \
+ CALLBACK_DATA_(FOR, p - FOR##_mark, p - data + 1)
+
+/* Run the data callback FOR and don't consume the current byte */
+#define CALLBACK_DATA_NOADVANCE(FOR) \
+ CALLBACK_DATA_(FOR, p - FOR##_mark, p - data)
+
+/* Set the mark FOR; non-destructive if mark is already set */
+#define MARK(FOR) \
+do { \
+ if (!FOR##_mark) { \
+ FOR##_mark = p; \
+ } \
+} while (0)
+
+/* Don't allow the total size of the HTTP headers (including the status
+ * line) to exceed HTTP_MAX_HEADER_SIZE. This check is here to protect
+ * embedders against denial-of-service attacks where the attacker feeds
+ * us a never-ending header that the embedder keeps buffering.
+ *
+ * This check is arguably the responsibility of embedders but we're doing
+ * it on the embedder's behalf because most won't bother and this way we
+ * make the web a little safer. HTTP_MAX_HEADER_SIZE is still far bigger
+ * than any reasonable request or response so this should never affect
+ * day-to-day operation.
+ */
+#define COUNT_HEADER_SIZE(V) \
+do { \
+ parser->nread += (V); \
+ if (UNLIKELY(parser->nread > (HTTP_MAX_HEADER_SIZE))) { \
+ SET_ERRNO(HPE_HEADER_OVERFLOW); \
+ goto error; \
+ } \
+} while (0)
+
+
+#define PROXY_CONNECTION "proxy-connection"
+#define CONNECTION "connection"
+#define CONTENT_LENGTH "content-length"
+#define TRANSFER_ENCODING "transfer-encoding"
+#define UPGRADE "upgrade"
+#define CHUNKED "chunked"
+#define KEEP_ALIVE "keep-alive"
+#define CLOSE "close"
+
+
+static const char *method_strings[] =
+ {
+#define XX(num, name, string) #string,
+ HTTP_METHOD_MAP(XX)
+#undef XX
+ };
+
+
+/* Tokens as defined by rfc 2616. Also lowercases them.
+ * token = 1*<any CHAR except CTLs or separators>
+ * separators = "(" | ")" | "<" | ">" | "@"
+ * | "," | ";" | ":" | "\" | <">
+ * | "/" | "[" | "]" | "?" | "="
+ * | "{" | "}" | SP | HT
+ */
+static const char tokens[256] = {
+/* 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' */
+ 0, '!', 0, '#', '$', '%', '&', '\'',
+/* 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / */
+ 0, 0, '*', '+', 0, '-', '.', 0,
+/* 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 */
+ '0', '1', '2', '3', '4', '5', '6', '7',
+/* 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? */
+ '8', '9', 0, 0, 0, 0, 0, 0,
+/* 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G */
+ 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+/* 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O */
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+/* 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W */
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+/* 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ */
+ 'x', 'y', 'z', 0, 0, 0, '^', '_',
+/* 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g */
+ '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+/* 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o */
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+/* 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w */
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+/* 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del */
+ 'x', 'y', 'z', 0, '|', 0, '~', 0 };
+
+
+static const int8_t unhex[256] =
+ {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1
+ ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ };
+
+
+#if HTTP_PARSER_STRICT
+# define T(v) 0
+#else
+# define T(v) v
+#endif
+
+
+static const uint8_t normal_url_char[32] = {
+/* 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel */
+ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,
+/* 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si */
+ 0 | T(2) | 0 | 0 | T(16) | 0 | 0 | 0,
+/* 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb */
+ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,
+/* 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us */
+ 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,
+/* 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' */
+ 0 | 2 | 4 | 0 | 16 | 32 | 64 | 128,
+/* 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 0,
+/* 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128,
+/* 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del */
+ 1 | 2 | 4 | 8 | 16 | 32 | 64 | 0, };
+
+#undef T
+
+enum state
+ { s_dead = 1 /* important that this is > 0 */
+
+ , s_start_req_or_res
+ , s_res_or_resp_H
+ , s_start_res
+ , s_res_H
+ , s_res_HT
+ , s_res_HTT
+ , s_res_HTTP
+ , s_res_first_http_major
+ , s_res_http_major
+ , s_res_first_http_minor
+ , s_res_http_minor
+ , s_res_first_status_code
+ , s_res_status_code
+ , s_res_status_start
+ , s_res_status
+ , s_res_line_almost_done
+
+ , s_start_req
+
+ , s_req_method
+ , s_req_spaces_before_url
+ , s_req_schema
+ , s_req_schema_slash
+ , s_req_schema_slash_slash
+ , s_req_server_start
+ , s_req_server
+ , s_req_server_with_at
+ , s_req_path
+ , s_req_query_string_start
+ , s_req_query_string
+ , s_req_fragment_start
+ , s_req_fragment
+ , s_req_http_start
+ , s_req_http_H
+ , s_req_http_HT
+ , s_req_http_HTT
+ , s_req_http_HTTP
+ , s_req_first_http_major
+ , s_req_http_major
+ , s_req_first_http_minor
+ , s_req_http_minor
+ , s_req_line_almost_done
+
+ , s_header_field_start
+ , s_header_field
+ , s_header_value_discard_ws
+ , s_header_value_discard_ws_almost_done
+ , s_header_value_discard_lws
+ , s_header_value_start
+ , s_header_value
+ , s_header_value_lws
+
+ , s_header_almost_done
+
+ , s_chunk_size_start
+ , s_chunk_size
+ , s_chunk_parameters
+ , s_chunk_size_almost_done
+
+ , s_headers_almost_done
+ , s_headers_done
+
+ /* Important: 's_headers_done' must be the last 'header' state. All
+ * states beyond this must be 'body' states. It is used for overflow
+ * checking. See the PARSING_HEADER() macro.
+ */
+
+ , s_chunk_data
+ , s_chunk_data_almost_done
+ , s_chunk_data_done
+
+ , s_body_identity
+ , s_body_identity_eof
+
+ , s_message_done
+ };
+
+
+#define PARSING_HEADER(state) (state <= s_headers_done)
+
+
+enum header_states
+ { h_general = 0
+ , h_C
+ , h_CO
+ , h_CON
+
+ , h_matching_connection
+ , h_matching_proxy_connection
+ , h_matching_content_length
+ , h_matching_transfer_encoding
+ , h_matching_upgrade
+
+ , h_connection
+ , h_content_length
+ , h_transfer_encoding
+ , h_upgrade
+
+ , h_matching_transfer_encoding_chunked
+ , h_matching_connection_token_start
+ , h_matching_connection_keep_alive
+ , h_matching_connection_close
+ , h_matching_connection_upgrade
+ , h_matching_connection_token
+
+ , h_transfer_encoding_chunked
+ , h_connection_keep_alive
+ , h_connection_close
+ , h_connection_upgrade
+ };
+
+enum http_host_state
+ {
+ s_http_host_dead = 1
+ , s_http_userinfo_start
+ , s_http_userinfo
+ , s_http_host_start
+ , s_http_host_v6_start
+ , s_http_host
+ , s_http_host_v6
+ , s_http_host_v6_end
+ , s_http_host_v6_zone_start
+ , s_http_host_v6_zone
+ , s_http_host_port_start
+ , s_http_host_port
+};
+
+/* Macros for character classes; depends on strict-mode */
+#define CR '\r'
+#define LF '\n'
+#define LOWER(c) (unsigned char)(c | 0x20)
+#define IS_ALPHA(c) (LOWER(c) >= 'a' && LOWER(c) <= 'z')
+#define IS_NUM(c) ((c) >= '0' && (c) <= '9')
+#define IS_ALPHANUM(c) (IS_ALPHA(c) || IS_NUM(c))
+#define IS_HEX(c) (IS_NUM(c) || (LOWER(c) >= 'a' && LOWER(c) <= 'f'))
+#define IS_MARK(c) ((c) == '-' || (c) == '_' || (c) == '.' || \
+ (c) == '!' || (c) == '~' || (c) == '*' || (c) == '\'' || (c) == '(' || \
+ (c) == ')')
+#define IS_USERINFO_CHAR(c) (IS_ALPHANUM(c) || IS_MARK(c) || (c) == '%' || \
+ (c) == ';' || (c) == ':' || (c) == '&' || (c) == '=' || (c) == '+' || \
+ (c) == '$' || (c) == ',')
+
+#define STRICT_TOKEN(c) (tokens[(unsigned char)c])
+
+#if HTTP_PARSER_STRICT
+#define TOKEN(c) (tokens[(unsigned char)c])
+#define IS_URL_CHAR(c) (BIT_AT(normal_url_char, (unsigned char)c))
+#define IS_HOST_CHAR(c) (IS_ALPHANUM(c) || (c) == '.' || (c) == '-')
+#else
+#define TOKEN(c) ((c == ' ') ? ' ' : tokens[(unsigned char)c])
+#define IS_URL_CHAR(c) \
+ (BIT_AT(normal_url_char, (unsigned char)c) || ((c) & 0x80))
+#define IS_HOST_CHAR(c) \
+ (IS_ALPHANUM(c) || (c) == '.' || (c) == '-' || (c) == '_')
+#endif
+
+/**
+ * Verify that a char is a valid visible (printable) US-ASCII
+ * character or %x80-FF
+ **/
+#define IS_HEADER_CHAR(ch) \
+ (ch == CR || ch == LF || ch == 9 || ((unsigned char)ch > 31 && ch != 127))
+
+#define start_state (parser->type == HTTP_REQUEST ? s_start_req : s_start_res)
+
+
+#if HTTP_PARSER_STRICT
+# define STRICT_CHECK(cond) \
+do { \
+ if (cond) { \
+ SET_ERRNO(HPE_STRICT); \
+ goto error; \
+ } \
+} while (0)
+# define NEW_MESSAGE() (http_should_keep_alive(parser) ? start_state : s_dead)
+#else
+# define STRICT_CHECK(cond)
+# define NEW_MESSAGE() start_state
+#endif
+
+
+/* Map errno values to strings for human-readable output */
+#define HTTP_STRERROR_GEN(n, s) { "HPE_" #n, s },
+static struct {
+ const char *name;
+ const char *description;
+} http_strerror_tab[] = {
+ HTTP_ERRNO_MAP(HTTP_STRERROR_GEN)
+};
+#undef HTTP_STRERROR_GEN
+
+int http_message_needs_eof(const http_parser *parser);
+
+/* Our URL parser.
+ *
+ * This is designed to be shared by http_parser_execute() for URL validation,
+ * hence it has a state transition + byte-for-byte interface. In addition, it
+ * is meant to be embedded in http_parser_parse_url(), which does the dirty
+ * work of turning state transitions URL components for its API.
+ *
+ * This function should only be invoked with non-space characters. It is
+ * assumed that the caller cares about (and can detect) the transition between
+ * URL and non-URL states by looking for these.
+ */
+static enum state
+parse_url_char(enum state s, const char ch)
+{
+ if (ch == ' ' || ch == '\r' || ch == '\n') {
+ return s_dead;
+ }
+
+#if HTTP_PARSER_STRICT
+ if (ch == '\t' || ch == '\f') {
+ return s_dead;
+ }
+#endif
+
+ switch (s) {
+ case s_req_spaces_before_url:
+ /* Proxied requests are followed by scheme of an absolute URI (alpha).
+ * All methods except CONNECT are followed by '/' or '*'.
+ */
+
+ if (ch == '/' || ch == '*') {
+ return s_req_path;
+ }
+
+ if (IS_ALPHA(ch)) {
+ return s_req_schema;
+ }
+
+ break;
+
+ case s_req_schema:
+ if (IS_ALPHA(ch)) {
+ return s;
+ }
+
+ if (ch == ':') {
+ return s_req_schema_slash;
+ }
+
+ break;
+
+ case s_req_schema_slash:
+ if (ch == '/') {
+ return s_req_schema_slash_slash;
+ }
+
+ break;
+
+ case s_req_schema_slash_slash:
+ if (ch == '/') {
+ return s_req_server_start;
+ }
+
+ break;
+
+ case s_req_server_with_at:
+ if (ch == '@') {
+ return s_dead;
+ }
+
+ /* FALLTHROUGH */
+ case s_req_server_start:
+ case s_req_server:
+ if (ch == '/') {
+ return s_req_path;
+ }
+
+ if (ch == '?') {
+ return s_req_query_string_start;
+ }
+
+ if (ch == '@') {
+ return s_req_server_with_at;
+ }
+
+ if (IS_USERINFO_CHAR(ch) || ch == '[' || ch == ']') {
+ return s_req_server;
+ }
+
+ break;
+
+ case s_req_path:
+ if (IS_URL_CHAR(ch)) {
+ return s;
+ }
+
+ switch (ch) {
+ case '?':
+ return s_req_query_string_start;
+
+ case '#':
+ return s_req_fragment_start;
+ }
+
+ break;
+
+ case s_req_query_string_start:
+ case s_req_query_string:
+ if (IS_URL_CHAR(ch)) {
+ return s_req_query_string;
+ }
+
+ switch (ch) {
+ case '?':
+ /* allow extra '?' in query string */
+ return s_req_query_string;
+
+ case '#':
+ return s_req_fragment_start;
+ }
+
+ break;
+
+ case s_req_fragment_start:
+ if (IS_URL_CHAR(ch)) {
+ return s_req_fragment;
+ }
+
+ switch (ch) {
+ case '?':
+ return s_req_fragment;
+
+ case '#':
+ return s;
+ }
+
+ break;
+
+ case s_req_fragment:
+ if (IS_URL_CHAR(ch)) {
+ return s;
+ }
+
+ switch (ch) {
+ case '?':
+ case '#':
+ return s;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ /* We should never fall out of the switch above unless there's an error */
+ return s_dead;
+}
+
+uint32_t http_parser_execute (http_parser *parser,
+ const http_parser_settings *settings,
+ const char *data,
+ uint32_t len)
+{
+ char c, ch;
+ int8_t unhex_val;
+ const char *p = data;
+ const char *header_field_mark = 0;
+ const char *header_value_mark = 0;
+ const char *url_mark = 0;
+ const char *body_mark = 0;
+ const char *status_mark = 0;
+ enum state p_state = (enum state) parser->state;
+ const unsigned int lenient = parser->lenient_http_headers;
+
+ /* We're in an error state. Don't bother doing anything. */
+ if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
+ return 0;
+ }
+
+ if (len == 0) {
+ switch (CURRENT_STATE()) {
+ case s_body_identity_eof:
+ /* Use of CALLBACK_NOTIFY() here would erroneously return 1 byte read if
+ * we got paused.
+ */
+ CALLBACK_NOTIFY_NOADVANCE(message_complete);
+ return 0;
+
+ case s_dead:
+ case s_start_req_or_res:
+ case s_start_res:
+ case s_start_req:
+ return 0;
+
+ default:
+ SET_ERRNO(HPE_INVALID_EOF_STATE);
+ return 1;
+ }
+ }
+
+
+ if (CURRENT_STATE() == s_header_field)
+ header_field_mark = data;
+ if (CURRENT_STATE() == s_header_value)
+ header_value_mark = data;
+ switch (CURRENT_STATE()) {
+ case s_req_path:
+ case s_req_schema:
+ case s_req_schema_slash:
+ case s_req_schema_slash_slash:
+ case s_req_server_start:
+ case s_req_server:
+ case s_req_server_with_at:
+ case s_req_query_string_start:
+ case s_req_query_string:
+ case s_req_fragment_start:
+ case s_req_fragment:
+ url_mark = data;
+ break;
+ case s_res_status:
+ status_mark = data;
+ break;
+ default:
+ break;
+ }
+
+ for (p=data; p != data + len; p++) {
+ ch = *p;
+
+ if (PARSING_HEADER(CURRENT_STATE()))
+ COUNT_HEADER_SIZE(1);
+
+reexecute:
+ switch (CURRENT_STATE()) {
+
+ case s_dead:
+ /* this state is used after a 'Connection: close' message
+ * the parser will error out if it reads another message
+ */
+ if (LIKELY(ch == CR || ch == LF))
+ break;
+
+ SET_ERRNO(HPE_CLOSED_CONNECTION);
+ goto error;
+
+ case s_start_req_or_res:
+ {
+ if (ch == CR || ch == LF)
+ break;
+ parser->flags = 0;
+ parser->content_length = ULLONG_MAX;
+
+ if (ch == 'H') {
+ UPDATE_STATE(s_res_or_resp_H);
+
+ CALLBACK_NOTIFY(message_begin);
+ } else {
+ parser->type = HTTP_REQUEST;
+ UPDATE_STATE(s_start_req);
+ REEXECUTE();
+ }
+
+ break;
+ }
+
+ case s_res_or_resp_H:
+ if (ch == 'T') {
+ parser->type = HTTP_RESPONSE;
+ UPDATE_STATE(s_res_HT);
+ } else {
+ if (UNLIKELY(ch != 'E')) {
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+
+ parser->type = HTTP_REQUEST;
+ parser->method = HTTP_HEAD;
+ parser->index = 2;
+ UPDATE_STATE(s_req_method);
+ }
+ break;
+
+ case s_start_res:
+ {
+ parser->flags = 0;
+ parser->content_length = ULLONG_MAX;
+
+ switch (ch) {
+ case 'H':
+ UPDATE_STATE(s_res_H);
+ break;
+
+ case CR:
+ case LF:
+ break;
+
+ default:
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+
+ CALLBACK_NOTIFY(message_begin);
+ break;
+ }
+
+ case s_res_H:
+ STRICT_CHECK(ch != 'T');
+ UPDATE_STATE(s_res_HT);
+ break;
+
+ case s_res_HT:
+ STRICT_CHECK(ch != 'T');
+ UPDATE_STATE(s_res_HTT);
+ break;
+
+ case s_res_HTT:
+ STRICT_CHECK(ch != 'P');
+ UPDATE_STATE(s_res_HTTP);
+ break;
+
+ case s_res_HTTP:
+ STRICT_CHECK(ch != '/');
+ UPDATE_STATE(s_res_first_http_major);
+ break;
+
+ case s_res_first_http_major:
+ if (UNLIKELY(ch < '0' || ch > '9')) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major = ch - '0';
+ UPDATE_STATE(s_res_http_major);
+ break;
+
+ /* major HTTP version or dot */
+ case s_res_http_major:
+ {
+ if (ch == '.') {
+ UPDATE_STATE(s_res_first_http_minor);
+ break;
+ }
+
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major *= 10;
+ parser->http_major += ch - '0';
+
+ if (UNLIKELY(parser->http_major > 999)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* first digit of minor HTTP version */
+ case s_res_first_http_minor:
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor = ch - '0';
+ UPDATE_STATE(s_res_http_minor);
+ break;
+
+ /* minor HTTP version or end of request line */
+ case s_res_http_minor:
+ {
+ if (ch == ' ') {
+ UPDATE_STATE(s_res_first_status_code);
+ break;
+ }
+
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor *= 10;
+ parser->http_minor += ch - '0';
+
+ if (UNLIKELY(parser->http_minor > 999)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ case s_res_first_status_code:
+ {
+ if (!IS_NUM(ch)) {
+ if (ch == ' ') {
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+ parser->status_code = ch - '0';
+ UPDATE_STATE(s_res_status_code);
+ break;
+ }
+
+ case s_res_status_code:
+ {
+ if (!IS_NUM(ch)) {
+ switch (ch) {
+ case ' ':
+ UPDATE_STATE(s_res_status_start);
+ break;
+ case CR:
+ UPDATE_STATE(s_res_line_almost_done);
+ break;
+ case LF:
+ UPDATE_STATE(s_header_field_start);
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+ break;
+ }
+
+ parser->status_code *= 10;
+ parser->status_code += ch - '0';
+
+ if (UNLIKELY(parser->status_code > 999)) {
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+
+ break;
+ }
+
+ case s_res_status_start:
+ {
+ if (ch == CR) {
+ UPDATE_STATE(s_res_line_almost_done);
+ break;
+ }
+
+ if (ch == LF) {
+ UPDATE_STATE(s_header_field_start);
+ break;
+ }
+
+ MARK(status);
+ UPDATE_STATE(s_res_status);
+ parser->index = 0;
+ break;
+ }
+
+ case s_res_status:
+ if (ch == CR) {
+ UPDATE_STATE(s_res_line_almost_done);
+ CALLBACK_DATA(status);
+ break;
+ }
+
+ if (ch == LF) {
+ UPDATE_STATE(s_header_field_start);
+ CALLBACK_DATA(status);
+ break;
+ }
+
+ break;
+
+ case s_res_line_almost_done:
+ STRICT_CHECK(ch != LF);
+ UPDATE_STATE(s_header_field_start);
+ break;
+
+ case s_start_req:
+ {
+ if (ch == CR || ch == LF)
+ break;
+ parser->flags = 0;
+ parser->content_length = ULLONG_MAX;
+
+ if (UNLIKELY(!IS_ALPHA(ch))) {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ parser->method = (enum http_method) 0;
+ parser->index = 1;
+ switch (ch) {
+ case 'A': parser->method = HTTP_ACL; break;
+ case 'B': parser->method = HTTP_BIND; break;
+ case 'C': parser->method = HTTP_CONNECT; /* or COPY, CHECKOUT */ break;
+ case 'D': parser->method = HTTP_DELETE; break;
+ case 'G': parser->method = HTTP_GET; break;
+ case 'H': parser->method = HTTP_HEAD; break;
+ case 'L': parser->method = HTTP_LOCK; /* or LINK */ break;
+ case 'M': parser->method = HTTP_MKCOL; /* or MOVE, MKACTIVITY, MERGE, M-SEARCH, MKCALENDAR */ break;
+ case 'N': parser->method = HTTP_NOTIFY; break;
+ case 'O': parser->method = HTTP_OPTIONS; break;
+ case 'P': parser->method = HTTP_POST;
+ /* or PROPFIND|PROPPATCH|PUT|PATCH|PURGE */
+ break;
+ case 'R': parser->method = HTTP_REPORT; /* or REBIND */ break;
+ case 'S': parser->method = HTTP_SUBSCRIBE; /* or SEARCH */ break;
+ case 'T': parser->method = HTTP_TRACE; break;
+ case 'U': parser->method = HTTP_UNLOCK; /* or UNSUBSCRIBE, UNBIND, UNLINK */ break;
+ default:
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+ UPDATE_STATE(s_req_method);
+
+ CALLBACK_NOTIFY(message_begin);
+
+ break;
+ }
+
+ case s_req_method:
+ {
+ const char *matcher;
+ if (UNLIKELY(ch == '\0')) {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ matcher = method_strings[parser->method];
+ if (ch == ' ' && matcher[parser->index] == '\0') {
+ UPDATE_STATE(s_req_spaces_before_url);
+ } else if (ch == matcher[parser->index]) {
+ ; /* nada */
+ } else if (IS_ALPHA(ch)) {
+
+ switch (parser->method << 16 | parser->index << 8 | ch) {
+#define XX(meth, pos, ch, new_meth) \
+ case (HTTP_##meth << 16 | pos << 8 | ch): \
+ parser->method = HTTP_##new_meth; break;
+
+ XX(POST, 1, 'U', PUT)
+ XX(POST, 1, 'A', PATCH)
+ XX(CONNECT, 1, 'H', CHECKOUT)
+ XX(CONNECT, 2, 'P', COPY)
+ XX(MKCOL, 1, 'O', MOVE)
+ XX(MKCOL, 1, 'E', MERGE)
+ XX(MKCOL, 2, 'A', MKACTIVITY)
+ XX(MKCOL, 3, 'A', MKCALENDAR)
+ XX(SUBSCRIBE, 1, 'E', SEARCH)
+ XX(REPORT, 2, 'B', REBIND)
+ XX(POST, 1, 'R', PROPFIND)
+ XX(PROPFIND, 4, 'P', PROPPATCH)
+ XX(PUT, 2, 'R', PURGE)
+ XX(LOCK, 1, 'I', LINK)
+ XX(UNLOCK, 2, 'S', UNSUBSCRIBE)
+ XX(UNLOCK, 2, 'B', UNBIND)
+ XX(UNLOCK, 3, 'I', UNLINK)
+#undef XX
+
+ default:
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+ } else if (ch == '-' &&
+ parser->index == 1 &&
+ parser->method == HTTP_MKCOL) {
+ parser->method = HTTP_MSEARCH;
+ } else {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ ++parser->index;
+ break;
+ }
+
+ case s_req_spaces_before_url:
+ {
+ if (ch == ' ') break;
+
+ MARK(url);
+ if (parser->method == HTTP_CONNECT) {
+ UPDATE_STATE(s_req_server_start);
+ }
+
+ UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+ if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ }
+
+ break;
+ }
+
+ case s_req_schema:
+ case s_req_schema_slash:
+ case s_req_schema_slash_slash:
+ case s_req_server_start:
+ {
+ switch (ch) {
+ /* No whitespace allowed here */
+ case ' ':
+ case CR:
+ case LF:
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ default:
+ UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+ if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ }
+ }
+
+ break;
+ }
+
+ case s_req_server:
+ case s_req_server_with_at:
+ case s_req_path:
+ case s_req_query_string_start:
+ case s_req_query_string:
+ case s_req_fragment_start:
+ case s_req_fragment:
+ {
+ switch (ch) {
+ case ' ':
+ UPDATE_STATE(s_req_http_start);
+ CALLBACK_DATA(url);
+ break;
+ case CR:
+ case LF:
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ UPDATE_STATE((ch == CR) ?
+ s_req_line_almost_done :
+ s_header_field_start);
+ CALLBACK_DATA(url);
+ break;
+ default:
+ UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+ if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ }
+ }
+ break;
+ }
+
+ case s_req_http_start:
+ switch (ch) {
+ case 'H':
+ UPDATE_STATE(s_req_http_H);
+ break;
+ case ' ':
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+ break;
+
+ case s_req_http_H:
+ STRICT_CHECK(ch != 'T');
+ UPDATE_STATE(s_req_http_HT);
+ break;
+
+ case s_req_http_HT:
+ STRICT_CHECK(ch != 'T');
+ UPDATE_STATE(s_req_http_HTT);
+ break;
+
+ case s_req_http_HTT:
+ STRICT_CHECK(ch != 'P');
+ UPDATE_STATE(s_req_http_HTTP);
+ break;
+
+ case s_req_http_HTTP:
+ STRICT_CHECK(ch != '/');
+ UPDATE_STATE(s_req_first_http_major);
+ break;
+
+ /* first digit of major HTTP version */
+ case s_req_first_http_major:
+ if (UNLIKELY(ch < '1' || ch > '9')) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major = ch - '0';
+ UPDATE_STATE(s_req_http_major);
+ break;
+
+ /* major HTTP version or dot */
+ case s_req_http_major:
+ {
+ if (ch == '.') {
+ UPDATE_STATE(s_req_first_http_minor);
+ break;
+ }
+
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major *= 10;
+ parser->http_major += ch - '0';
+
+ if (UNLIKELY(parser->http_major > 999)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* first digit of minor HTTP version */
+ case s_req_first_http_minor:
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor = ch - '0';
+ UPDATE_STATE(s_req_http_minor);
+ break;
+
+ /* minor HTTP version or end of request line */
+ case s_req_http_minor:
+ {
+ if (ch == CR) {
+ UPDATE_STATE(s_req_line_almost_done);
+ break;
+ }
+
+ if (ch == LF) {
+ UPDATE_STATE(s_header_field_start);
+ break;
+ }
+
+ /* XXX allow spaces after digit? */
+
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor *= 10;
+ parser->http_minor += ch - '0';
+
+ if (UNLIKELY(parser->http_minor > 999)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* end of request line */
+ case s_req_line_almost_done:
+ {
+ if (UNLIKELY(ch != LF)) {
+ SET_ERRNO(HPE_LF_EXPECTED);
+ goto error;
+ }
+
+ UPDATE_STATE(s_header_field_start);
+ break;
+ }
+
+ case s_header_field_start:
+ {
+ if (ch == CR) {
+ UPDATE_STATE(s_headers_almost_done);
+ break;
+ }
+
+ if (ch == LF) {
+ /* they might be just sending \n instead of \r\n so this would be
+ * the second \n to denote the end of headers*/
+ UPDATE_STATE(s_headers_almost_done);
+ REEXECUTE();
+ }
+
+ c = TOKEN(ch);
+
+ if (UNLIKELY(!c)) {
+ SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+ goto error;
+ }
+
+ MARK(header_field);
+
+ parser->index = 0;
+ UPDATE_STATE(s_header_field);
+
+ switch (c) {
+ case 'c':
+ parser->header_state = h_C;
+ break;
+
+ case 'p':
+ parser->header_state = h_matching_proxy_connection;
+ break;
+
+ case 't':
+ parser->header_state = h_matching_transfer_encoding;
+ break;
+
+ case 'u':
+ parser->header_state = h_matching_upgrade;
+ break;
+
+ default:
+ parser->header_state = h_general;
+ break;
+ }
+ break;
+ }
+
+ case s_header_field:
+ {
+ const char* start = p;
+ for (; p != data + len; p++) {
+ ch = *p;
+ c = TOKEN(ch);
+
+ if (!c)
+ break;
+
+ switch (parser->header_state) {
+ case h_general:
+ break;
+
+ case h_C:
+ parser->index++;
+ parser->header_state = (c == 'o' ? h_CO : h_general);
+ break;
+
+ case h_CO:
+ parser->index++;
+ parser->header_state = (c == 'n' ? h_CON : h_general);
+ break;
+
+ case h_CON:
+ parser->index++;
+ switch (c) {
+ case 'n':
+ parser->header_state = h_matching_connection;
+ break;
+ case 't':
+ parser->header_state = h_matching_content_length;
+ break;
+ default:
+ parser->header_state = h_general;
+ break;
+ }
+ break;
+
+ /* connection */
+
+ case h_matching_connection:
+ parser->index++;
+ if (parser->index > sizeof(CONNECTION)-1
+ || c != CONNECTION[parser->index]) {
+ parser->header_state = h_general;
+ } else if (parser->index == sizeof(CONNECTION)-2) {
+ parser->header_state = h_connection;
+ }
+ break;
+
+ /* proxy-connection */
+
+ case h_matching_proxy_connection:
+ parser->index++;
+ if (parser->index > sizeof(PROXY_CONNECTION)-1
+ || c != PROXY_CONNECTION[parser->index]) {
+ parser->header_state = h_general;
+ } else if (parser->index == sizeof(PROXY_CONNECTION)-2) {
+ parser->header_state = h_connection;
+ }
+ break;
+
+ /* content-length */
+
+ case h_matching_content_length:
+ parser->index++;
+ if (parser->index > sizeof(CONTENT_LENGTH)-1
+ || c != CONTENT_LENGTH[parser->index]) {
+ parser->header_state = h_general;
+ } else if (parser->index == sizeof(CONTENT_LENGTH)-2) {
+ parser->header_state = h_content_length;
+ }
+ break;
+
+ /* transfer-encoding */
+
+ case h_matching_transfer_encoding:
+ parser->index++;
+ if (parser->index > sizeof(TRANSFER_ENCODING)-1
+ || c != TRANSFER_ENCODING[parser->index]) {
+ parser->header_state = h_general;
+ } else if (parser->index == sizeof(TRANSFER_ENCODING)-2) {
+ parser->header_state = h_transfer_encoding;
+ }
+ break;
+
+ /* upgrade */
+
+ case h_matching_upgrade:
+ parser->index++;
+ if (parser->index > sizeof(UPGRADE)-1
+ || c != UPGRADE[parser->index]) {
+ parser->header_state = h_general;
+ } else if (parser->index == sizeof(UPGRADE)-2) {
+ parser->header_state = h_upgrade;
+ }
+ break;
+
+ case h_connection:
+ case h_content_length:
+ case h_transfer_encoding:
+ case h_upgrade:
+ if (ch != ' ') parser->header_state = h_general;
+ break;
+
+ default:
+ assert(0 && "Unknown header_state");
+ break;
+ }
+ }
+
+ COUNT_HEADER_SIZE(p - start);
+
+ if (p == data + len) {
+ --p;
+ break;
+ }
+
+ if (ch == ':') {
+ UPDATE_STATE(s_header_value_discard_ws);
+ CALLBACK_DATA(header_field);
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+ goto error;
+ }
+
+ case s_header_value_discard_ws:
+ if (ch == ' ' || ch == '\t') break;
+
+ if (ch == CR) {
+ UPDATE_STATE(s_header_value_discard_ws_almost_done);
+ break;
+ }
+
+ if (ch == LF) {
+ UPDATE_STATE(s_header_value_discard_lws);
+ break;
+ }
+
+ /* FALLTHROUGH */
+
+ case s_header_value_start:
+ {
+ MARK(header_value);
+
+ UPDATE_STATE(s_header_value);
+ parser->index = 0;
+
+ c = LOWER(ch);
+
+ switch (parser->header_state) {
+ case h_upgrade:
+ parser->flags |= F_UPGRADE;
+ parser->header_state = h_general;
+ break;
+
+ case h_transfer_encoding:
+ /* looking for 'Transfer-Encoding: chunked' */
+ if ('c' == c) {
+ parser->header_state = h_matching_transfer_encoding_chunked;
+ } else {
+ parser->header_state = h_general;
+ }
+ break;
+
+ case h_content_length:
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ goto error;
+ }
+
+ if (parser->flags & F_CONTENTLENGTH) {
+ SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
+ goto error;
+ }
+
+ parser->flags |= F_CONTENTLENGTH;
+ parser->content_length = ch - '0';
+ break;
+
+ case h_connection:
+ /* looking for 'Connection: keep-alive' */
+ if (c == 'k') {
+ parser->header_state = h_matching_connection_keep_alive;
+ /* looking for 'Connection: close' */
+ } else if (c == 'c') {
+ parser->header_state = h_matching_connection_close;
+ } else if (c == 'u') {
+ parser->header_state = h_matching_connection_upgrade;
+ } else {
+ parser->header_state = h_matching_connection_token;
+ }
+ break;
+
+ /* Multi-value `Connection` header */
+ case h_matching_connection_token_start:
+ break;
+
+ default:
+ parser->header_state = h_general;
+ break;
+ }
+ break;
+ }
+
+ case s_header_value:
+ {
+ const char* start = p;
+ enum header_states h_state = (enum header_states) parser->header_state;
+ for (; p != data + len; p++) {
+ ch = *p;
+ if (ch == CR) {
+ UPDATE_STATE(s_header_almost_done);
+ parser->header_state = h_state;
+ CALLBACK_DATA(header_value);
+ break;
+ }
+
+ if (ch == LF) {
+ UPDATE_STATE(s_header_almost_done);
+ COUNT_HEADER_SIZE(p - start);
+ parser->header_state = h_state;
+ CALLBACK_DATA_NOADVANCE(header_value);
+ REEXECUTE();
+ }
+
+ if (!lenient && !IS_HEADER_CHAR(ch)) {
+ SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+ goto error;
+ }
+
+ c = LOWER(ch);
+
+ switch (h_state) {
+ case h_general:
+ {
+ const char* p_cr;
+ const char* p_lf;
+ uint32_t limit = data + len - p;
+
+ limit = MIN(limit, HTTP_MAX_HEADER_SIZE);
+
+ p_cr = (const char*) memchr(p, CR, limit);
+ p_lf = (const char*) memchr(p, LF, limit);
+ if (p_cr != NULL) {
+ if (p_lf != NULL && p_cr >= p_lf)
+ p = p_lf;
+ else
+ p = p_cr;
+ } else if (UNLIKELY(p_lf != NULL)) {
+ p = p_lf;
+ } else {
+ p = data + len;
+ }
+ --p;
+
+ break;
+ }
+
+ case h_connection:
+ case h_transfer_encoding:
+ assert(0 && "Shouldn't get here.");
+ break;
+
+ case h_content_length:
+ {
+ uint64_t t;
+
+ if (ch == ' ') break;
+
+ if (UNLIKELY(!IS_NUM(ch))) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ parser->header_state = h_state;
+ goto error;
+ }
+
+ t = parser->content_length;
+ t *= 10;
+ t += ch - '0';
+
+ /* Overflow? Test against a conservative limit for simplicity. */
+ if (UNLIKELY((ULLONG_MAX - 10) / 10 < parser->content_length)) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ parser->header_state = h_state;
+ goto error;
+ }
+
+ parser->content_length = t;
+ break;
+ }
+
+ /* Transfer-Encoding: chunked */
+ case h_matching_transfer_encoding_chunked:
+ parser->index++;
+ if (parser->index > sizeof(CHUNKED)-1
+ || c != CHUNKED[parser->index]) {
+ h_state = h_general;
+ } else if (parser->index == sizeof(CHUNKED)-2) {
+ h_state = h_transfer_encoding_chunked;
+ }
+ break;
+
+ case h_matching_connection_token_start:
+ /* looking for 'Connection: keep-alive' */
+ if (c == 'k') {
+ h_state = h_matching_connection_keep_alive;
+ /* looking for 'Connection: close' */
+ } else if (c == 'c') {
+ h_state = h_matching_connection_close;
+ } else if (c == 'u') {
+ h_state = h_matching_connection_upgrade;
+ } else if (STRICT_TOKEN(c)) {
+ h_state = h_matching_connection_token;
+ } else if (c == ' ' || c == '\t') {
+ /* Skip lws */
+ } else {
+ h_state = h_general;
+ }
+ break;
+
+ /* looking for 'Connection: keep-alive' */
+ case h_matching_connection_keep_alive:
+ parser->index++;
+ if (parser->index > sizeof(KEEP_ALIVE)-1
+ || c != KEEP_ALIVE[parser->index]) {
+ h_state = h_matching_connection_token;
+ } else if (parser->index == sizeof(KEEP_ALIVE)-2) {
+ h_state = h_connection_keep_alive;
+ }
+ break;
+
+ /* looking for 'Connection: close' */
+ case h_matching_connection_close:
+ parser->index++;
+ if (parser->index > sizeof(CLOSE)-1 || c != CLOSE[parser->index]) {
+ h_state = h_matching_connection_token;
+ } else if (parser->index == sizeof(CLOSE)-2) {
+ h_state = h_connection_close;
+ }
+ break;
+
+ /* looking for 'Connection: upgrade' */
+ case h_matching_connection_upgrade:
+ parser->index++;
+ if (parser->index > sizeof(UPGRADE) - 1 ||
+ c != UPGRADE[parser->index]) {
+ h_state = h_matching_connection_token;
+ } else if (parser->index == sizeof(UPGRADE)-2) {
+ h_state = h_connection_upgrade;
+ }
+ break;
+
+ case h_matching_connection_token:
+ if (ch == ',') {
+ h_state = h_matching_connection_token_start;
+ parser->index = 0;
+ }
+ break;
+
+ case h_transfer_encoding_chunked:
+ if (ch != ' ') h_state = h_general;
+ break;
+
+ case h_connection_keep_alive:
+ case h_connection_close:
+ case h_connection_upgrade:
+ if (ch == ',') {
+ if (h_state == h_connection_keep_alive) {
+ parser->flags |= F_CONNECTION_KEEP_ALIVE;
+ } else if (h_state == h_connection_close) {
+ parser->flags |= F_CONNECTION_CLOSE;
+ } else if (h_state == h_connection_upgrade) {
+ parser->flags |= F_CONNECTION_UPGRADE;
+ }
+ h_state = h_matching_connection_token_start;
+ parser->index = 0;
+ } else if (ch != ' ') {
+ h_state = h_matching_connection_token;
+ }
+ break;
+
+ default:
+ UPDATE_STATE(s_header_value);
+ h_state = h_general;
+ break;
+ }
+ }
+ parser->header_state = h_state;
+
+ COUNT_HEADER_SIZE(p - start);
+
+ if (p == data + len)
+ --p;
+ break;
+ }
+
+ case s_header_almost_done:
+ {
+ if (UNLIKELY(ch != LF)) {
+ SET_ERRNO(HPE_LF_EXPECTED);
+ goto error;
+ }
+
+ UPDATE_STATE(s_header_value_lws);
+ break;
+ }
+
+ case s_header_value_lws:
+ {
+ if (ch == ' ' || ch == '\t') {
+ UPDATE_STATE(s_header_value_start);
+ REEXECUTE();
+ }
+
+ /* finished the header */
+ switch (parser->header_state) {
+ case h_connection_keep_alive:
+ parser->flags |= F_CONNECTION_KEEP_ALIVE;
+ break;
+ case h_connection_close:
+ parser->flags |= F_CONNECTION_CLOSE;
+ break;
+ case h_transfer_encoding_chunked:
+ parser->flags |= F_CHUNKED;
+ break;
+ case h_connection_upgrade:
+ parser->flags |= F_CONNECTION_UPGRADE;
+ break;
+ default:
+ break;
+ }
+
+ UPDATE_STATE(s_header_field_start);
+ REEXECUTE();
+ }
+
+ case s_header_value_discard_ws_almost_done:
+ {
+ STRICT_CHECK(ch != LF);
+ UPDATE_STATE(s_header_value_discard_lws);
+ break;
+ }
+
+ case s_header_value_discard_lws:
+ {
+ if (ch == ' ' || ch == '\t') {
+ UPDATE_STATE(s_header_value_discard_ws);
+ break;
+ } else {
+ switch (parser->header_state) {
+ case h_connection_keep_alive:
+ parser->flags |= F_CONNECTION_KEEP_ALIVE;
+ break;
+ case h_connection_close:
+ parser->flags |= F_CONNECTION_CLOSE;
+ break;
+ case h_connection_upgrade:
+ parser->flags |= F_CONNECTION_UPGRADE;
+ break;
+ case h_transfer_encoding_chunked:
+ parser->flags |= F_CHUNKED;
+ break;
+ default:
+ break;
+ }
+
+ /* header value was empty */
+ MARK(header_value);
+ UPDATE_STATE(s_header_field_start);
+ CALLBACK_DATA_NOADVANCE(header_value);
+ REEXECUTE();
+ }
+ }
+
+ case s_headers_almost_done:
+ {
+ STRICT_CHECK(ch != LF);
+
+ if (parser->flags & F_TRAILING) {
+ /* End of a chunked request */
+ UPDATE_STATE(s_message_done);
+ CALLBACK_NOTIFY_NOADVANCE(chunk_complete);
+ REEXECUTE();
+ }
+
+ /* Cannot use chunked encoding and a content-length header together
+ per the HTTP specification. */
+ if ((parser->flags & F_CHUNKED) &&
+ (parser->flags & F_CONTENTLENGTH)) {
+ SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
+ goto error;
+ }
+
+ UPDATE_STATE(s_headers_done);
+
+ /* Set this here so that on_headers_complete() callbacks can see it */
+ parser->upgrade =
+ ((parser->flags & (F_UPGRADE | F_CONNECTION_UPGRADE)) ==
+ (F_UPGRADE | F_CONNECTION_UPGRADE) ||
+ parser->method == HTTP_CONNECT);
+
+ /* Here we call the headers_complete callback. This is somewhat
+ * different than other callbacks because if the user returns 1, we
+ * will interpret that as saying that this message has no body. This
+ * is needed for the annoying case of recieving a response to a HEAD
+ * request.
+ *
+ * We'd like to use CALLBACK_NOTIFY_NOADVANCE() here but we cannot, so
+ * we have to simulate it by handling a change in errno below.
+ */
+ if (settings->on_headers_complete) {
+ switch (settings->on_headers_complete(parser)) {
+ case 0:
+ break;
+
+ case 2:
+ parser->upgrade = 1;
+
+ case 1:
+ parser->flags |= F_SKIPBODY;
+ break;
+
+ default:
+ SET_ERRNO(HPE_CB_headers_complete);
+ RETURN(p - data); /* Error */
+ }
+ }
+
+ if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
+ RETURN(p - data);
+ }
+
+ REEXECUTE();
+ }
+
+ case s_headers_done:
+ {
+ int hasBody;
+ STRICT_CHECK(ch != LF);
+
+ parser->nread = 0;
+
+ hasBody = parser->flags & F_CHUNKED ||
+ (parser->content_length > 0 && parser->content_length != ULLONG_MAX);
+ if (parser->upgrade && (parser->method == HTTP_CONNECT ||
+ (parser->flags & F_SKIPBODY) || !hasBody)) {
+ /* Exit, the rest of the message is in a different protocol. */
+ UPDATE_STATE(NEW_MESSAGE());
+ CALLBACK_NOTIFY(message_complete);
+ RETURN((p - data) + 1);
+ }
+
+ if (parser->flags & F_SKIPBODY) {
+ UPDATE_STATE(NEW_MESSAGE());
+ CALLBACK_NOTIFY(message_complete);
+ } else if (parser->flags & F_CHUNKED) {
+ /* chunked encoding - ignore Content-Length header */
+ UPDATE_STATE(s_chunk_size_start);
+ } else {
+ if (parser->content_length == 0) {
+ /* Content-Length header given but zero: Content-Length: 0\r\n */
+ UPDATE_STATE(NEW_MESSAGE());
+ CALLBACK_NOTIFY(message_complete);
+ } else if (parser->content_length != ULLONG_MAX) {
+ /* Content-Length header given and non-zero */
+ UPDATE_STATE(s_body_identity);
+ } else {
+ if (!http_message_needs_eof(parser)) {
+ /* Assume content-length 0 - read the next */
+ UPDATE_STATE(NEW_MESSAGE());
+ CALLBACK_NOTIFY(message_complete);
+ } else {
+ /* Read body until EOF */
+ UPDATE_STATE(s_body_identity_eof);
+ }
+ }
+ }
+
+ break;
+ }
+
+ case s_body_identity:
+ {
+ uint64_t to_read = MIN(parser->content_length,
+ (uint64_t) ((data + len) - p));
+
+ assert(parser->content_length != 0
+ && parser->content_length != ULLONG_MAX);
+
+ /* The difference between advancing content_length and p is because
+ * the latter will automaticaly advance on the next loop iteration.
+ * Further, if content_length ends up at 0, we want to see the last
+ * byte again for our message complete callback.
+ */
+ MARK(body);
+ parser->content_length -= to_read;
+ p += to_read - 1;
+
+ if (parser->content_length == 0) {
+ UPDATE_STATE(s_message_done);
+
+ /* Mimic CALLBACK_DATA_NOADVANCE() but with one extra byte.
+ *
+ * The alternative to doing this is to wait for the next byte to
+ * trigger the data callback, just as in every other case. The
+ * problem with this is that this makes it difficult for the test
+ * harness to distinguish between complete-on-EOF and
+ * complete-on-length. It's not clear that this distinction is
+ * important for applications, but let's keep it for now.
+ */
+ CALLBACK_DATA_(body, p - body_mark + 1, p - data);
+ REEXECUTE();
+ }
+
+ break;
+ }
+
+ /* read until EOF */
+ case s_body_identity_eof:
+ MARK(body);
+ p = data + len - 1;
+
+ break;
+
+ case s_message_done:
+ UPDATE_STATE(NEW_MESSAGE());
+ CALLBACK_NOTIFY(message_complete);
+ if (parser->upgrade) {
+ /* Exit, the rest of the message is in a different protocol. */
+ RETURN((p - data) + 1);
+ }
+ break;
+
+ case s_chunk_size_start:
+ {
+ assert(parser->nread == 1);
+ assert(parser->flags & F_CHUNKED);
+
+ unhex_val = unhex[(unsigned char)ch];
+ if (UNLIKELY(unhex_val == -1)) {
+ SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+ goto error;
+ }
+
+ parser->content_length = unhex_val;
+ UPDATE_STATE(s_chunk_size);
+ break;
+ }
+
+ case s_chunk_size:
+ {
+ uint64_t t;
+
+ assert(parser->flags & F_CHUNKED);
+
+ if (ch == CR) {
+ UPDATE_STATE(s_chunk_size_almost_done);
+ break;
+ }
+
+ unhex_val = unhex[(unsigned char)ch];
+
+ if (unhex_val == -1) {
+ if (ch == ';' || ch == ' ') {
+ UPDATE_STATE(s_chunk_parameters);
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+ goto error;
+ }
+
+ t = parser->content_length;
+ t *= 16;
+ t += unhex_val;
+
+ /* Overflow? Test against a conservative limit for simplicity. */
+ if (UNLIKELY((ULLONG_MAX - 16) / 16 < parser->content_length)) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ goto error;
+ }
+
+ parser->content_length = t;
+ break;
+ }
+
+ case s_chunk_parameters:
+ {
+ assert(parser->flags & F_CHUNKED);
+ /* just ignore this shit. TODO check for overflow */
+ if (ch == CR) {
+ UPDATE_STATE(s_chunk_size_almost_done);
+ break;
+ }
+ break;
+ }
+
+ case s_chunk_size_almost_done:
+ {
+ assert(parser->flags & F_CHUNKED);
+ STRICT_CHECK(ch != LF);
+
+ parser->nread = 0;
+
+ if (parser->content_length == 0) {
+ parser->flags |= F_TRAILING;
+ UPDATE_STATE(s_header_field_start);
+ } else {
+ UPDATE_STATE(s_chunk_data);
+ }
+ CALLBACK_NOTIFY(chunk_header);
+ break;
+ }
+
+ case s_chunk_data:
+ {
+ uint64_t to_read = MIN(parser->content_length,
+ (uint64_t) ((data + len) - p));
+
+ assert(parser->flags & F_CHUNKED);
+ assert(parser->content_length != 0
+ && parser->content_length != ULLONG_MAX);
+
+ /* See the explanation in s_body_identity for why the content
+ * length and data pointers are managed this way.
+ */
+ MARK(body);
+ parser->content_length -= to_read;
+ p += to_read - 1;
+
+ if (parser->content_length == 0) {
+ UPDATE_STATE(s_chunk_data_almost_done);
+ }
+
+ break;
+ }
+
+ case s_chunk_data_almost_done:
+ assert(parser->flags & F_CHUNKED);
+ assert(parser->content_length == 0);
+ STRICT_CHECK(ch != CR);
+ UPDATE_STATE(s_chunk_data_done);
+ CALLBACK_DATA(body);
+ break;
+
+ case s_chunk_data_done:
+ assert(parser->flags & F_CHUNKED);
+ STRICT_CHECK(ch != LF);
+ parser->nread = 0;
+ UPDATE_STATE(s_chunk_size_start);
+ CALLBACK_NOTIFY(chunk_complete);
+ break;
+
+ default:
+ assert(0 && "unhandled state");
+ SET_ERRNO(HPE_INVALID_INTERNAL_STATE);
+ goto error;
+ }
+ }
+
+ /* Run callbacks for any marks that we have leftover after we ran our of
+ * bytes. There should be at most one of these set, so it's OK to invoke
+ * them in series (unset marks will not result in callbacks).
+ *
+ * We use the NOADVANCE() variety of callbacks here because 'p' has already
+ * overflowed 'data' and this allows us to correct for the off-by-one that
+ * we'd otherwise have (since CALLBACK_DATA() is meant to be run with a 'p'
+ * value that's in-bounds).
+ */
+
+ assert(((header_field_mark ? 1 : 0) +
+ (header_value_mark ? 1 : 0) +
+ (url_mark ? 1 : 0) +
+ (body_mark ? 1 : 0) +
+ (status_mark ? 1 : 0)) <= 1);
+
+ CALLBACK_DATA_NOADVANCE(header_field);
+ CALLBACK_DATA_NOADVANCE(header_value);
+ CALLBACK_DATA_NOADVANCE(url);
+ CALLBACK_DATA_NOADVANCE(body);
+ CALLBACK_DATA_NOADVANCE(status);
+
+ RETURN(len);
+
+error:
+ if (HTTP_PARSER_ERRNO(parser) == HPE_OK) {
+ SET_ERRNO(HPE_UNKNOWN);
+ }
+
+ RETURN(p - data);
+}
+
+
+/* Does the parser need to see an EOF to find the end of the message? */
+int
+http_message_needs_eof (const http_parser *parser)
+{
+ if (parser->type == HTTP_REQUEST) {
+ return 0;
+ }
+
+ /* See RFC 2616 section 4.4 */
+ if (parser->status_code / 100 == 1 || /* 1xx e.g. Continue */
+ parser->status_code == 204 || /* No Content */
+ parser->status_code == 304 || /* Not Modified */
+ parser->flags & F_SKIPBODY) { /* response to a HEAD request */
+ return 0;
+ }
+
+ if ((parser->flags & F_CHUNKED) || parser->content_length != ULLONG_MAX) {
+ return 0;
+ }
+
+ return 1;
+}
+
+
+int
+http_should_keep_alive (const http_parser *parser)
+{
+ if (parser->http_major > 0 && parser->http_minor > 0) {
+ /* HTTP/1.1 */
+ if (parser->flags & F_CONNECTION_CLOSE) {
+ return 0;
+ }
+ } else {
+ /* HTTP/1.0 or earlier */
+ if (!(parser->flags & F_CONNECTION_KEEP_ALIVE)) {
+ return 0;
+ }
+ }
+
+ return !http_message_needs_eof(parser);
+}
+
+
+const char *
+http_method_str (enum http_method m)
+{
+ return ELEM_AT(method_strings, m, "<unknown>");
+}
+
+
+void
+http_parser_init (http_parser *parser, enum http_parser_type t)
+{
+ void *data = parser->data; /* preserve application data */
+ memset(parser, 0, sizeof(*parser));
+ parser->data = data;
+ parser->type = t;
+ parser->state = (t == HTTP_REQUEST ? s_start_req : (t == HTTP_RESPONSE ? s_start_res : s_start_req_or_res));
+ parser->http_errno = HPE_OK;
+}
+
+void
+http_parser_settings_init(http_parser_settings *settings)
+{
+ memset(settings, 0, sizeof(*settings));
+}
+
+const char *
+http_errno_name(enum http_errno err) {
+ assert(((uint32_t) err) < ARRAY_SIZE(http_strerror_tab));
+ return http_strerror_tab[err].name;
+}
+
+const char *
+http_errno_description(enum http_errno err) {
+ assert(((uint32_t) err) < ARRAY_SIZE(http_strerror_tab));
+ return http_strerror_tab[err].description;
+}
+
+static enum http_host_state
+http_parse_host_char(enum http_host_state s, const char ch) {
+ switch(s) {
+ case s_http_userinfo:
+ case s_http_userinfo_start:
+ if (ch == '@') {
+ return s_http_host_start;
+ }
+
+ if (IS_USERINFO_CHAR(ch)) {
+ return s_http_userinfo;
+ }
+ break;
+
+ case s_http_host_start:
+ if (ch == '[') {
+ return s_http_host_v6_start;
+ }
+
+ if (IS_HOST_CHAR(ch)) {
+ return s_http_host;
+ }
+
+ break;
+
+ case s_http_host:
+ if (IS_HOST_CHAR(ch)) {
+ return s_http_host;
+ }
+
+ /* FALLTHROUGH */
+ case s_http_host_v6_end:
+ if (ch == ':') {
+ return s_http_host_port_start;
+ }
+
+ break;
+
+ case s_http_host_v6:
+ if (ch == ']') {
+ return s_http_host_v6_end;
+ }
+
+ /* FALLTHROUGH */
+ case s_http_host_v6_start:
+ if (IS_HEX(ch) || ch == ':' || ch == '.') {
+ return s_http_host_v6;
+ }
+
+ if (s == s_http_host_v6 && ch == '%') {
+ return s_http_host_v6_zone_start;
+ }
+ break;
+
+ case s_http_host_v6_zone:
+ if (ch == ']') {
+ return s_http_host_v6_end;
+ }
+
+ /* FALLTHROUGH */
+ case s_http_host_v6_zone_start:
+ /* RFC 6874 Zone ID consists of 1*( unreserved / pct-encoded) */
+ if (IS_ALPHANUM(ch) || ch == '%' || ch == '.' || ch == '-' || ch == '_' ||
+ ch == '~') {
+ return s_http_host_v6_zone;
+ }
+ break;
+
+ case s_http_host_port:
+ case s_http_host_port_start:
+ if (IS_NUM(ch)) {
+ return s_http_host_port;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+ return s_http_host_dead;
+}
+
+static int
+http_parse_host(const char * buf, struct http_parser_url *u, int found_at) {
+ enum http_host_state s;
+
+ const char *p;
+ uint32_t buflen = u->field_data[UF_HOST].off + u->field_data[UF_HOST].len;
+
+ assert(u->field_set & (1 << UF_HOST));
+
+ u->field_data[UF_HOST].len = 0;
+
+ s = found_at ? s_http_userinfo_start : s_http_host_start;
+
+ for (p = buf + u->field_data[UF_HOST].off; p < buf + buflen; p++) {
+ enum http_host_state new_s = http_parse_host_char(s, *p);
+
+ if (new_s == s_http_host_dead) {
+ return 1;
+ }
+
+ switch(new_s) {
+ case s_http_host:
+ if (s != s_http_host) {
+ u->field_data[UF_HOST].off = p - buf;
+ }
+ u->field_data[UF_HOST].len++;
+ break;
+
+ case s_http_host_v6:
+ if (s != s_http_host_v6) {
+ u->field_data[UF_HOST].off = p - buf;
+ }
+ u->field_data[UF_HOST].len++;
+ break;
+
+ case s_http_host_v6_zone_start:
+ case s_http_host_v6_zone:
+ u->field_data[UF_HOST].len++;
+ break;
+
+ case s_http_host_port:
+ if (s != s_http_host_port) {
+ u->field_data[UF_PORT].off = p - buf;
+ u->field_data[UF_PORT].len = 0;
+ u->field_set |= (1 << UF_PORT);
+ }
+ u->field_data[UF_PORT].len++;
+ break;
+
+ case s_http_userinfo:
+ if (s != s_http_userinfo) {
+ u->field_data[UF_USERINFO].off = p - buf ;
+ u->field_data[UF_USERINFO].len = 0;
+ u->field_set |= (1 << UF_USERINFO);
+ }
+ u->field_data[UF_USERINFO].len++;
+ break;
+
+ default:
+ break;
+ }
+ s = new_s;
+ }
+
+ /* Make sure we don't end somewhere unexpected */
+ switch (s) {
+ case s_http_host_start:
+ case s_http_host_v6_start:
+ case s_http_host_v6:
+ case s_http_host_v6_zone_start:
+ case s_http_host_v6_zone:
+ case s_http_host_port_start:
+ case s_http_userinfo:
+ case s_http_userinfo_start:
+ return 1;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+void
+http_parser_url_init(struct http_parser_url *u) {
+ memset(u, 0, sizeof(*u));
+}
+
+int
+http_parser_parse_url(const char *buf, uint32_t buflen, int is_connect,
+ struct http_parser_url *u)
+{
+ enum state s;
+ const char *p;
+ enum http_parser_url_fields uf, old_uf;
+ int found_at = 0;
+
+ u->port = u->field_set = 0;
+ s = is_connect ? s_req_server_start : s_req_spaces_before_url;
+ old_uf = UF_MAX;
+
+ for (p = buf; p < buf + buflen; p++) {
+ s = parse_url_char(s, *p);
+
+ /* Figure out the next field that we're operating on */
+ switch (s) {
+ case s_dead:
+ return 1;
+
+ /* Skip delimeters */
+ case s_req_schema_slash:
+ case s_req_schema_slash_slash:
+ case s_req_server_start:
+ case s_req_query_string_start:
+ case s_req_fragment_start:
+ continue;
+
+ case s_req_schema:
+ uf = UF_SCHEMA;
+ break;
+
+ case s_req_server_with_at:
+ found_at = 1;
+
+ /* FALLTROUGH */
+ case s_req_server:
+ uf = UF_HOST;
+ break;
+
+ case s_req_path:
+ uf = UF_PATH;
+ break;
+
+ case s_req_query_string:
+ uf = UF_QUERY;
+ break;
+
+ case s_req_fragment:
+ uf = UF_FRAGMENT;
+ break;
+
+ default:
+ assert(!"Unexpected state");
+ return 1;
+ }
+
+ /* Nothing's changed; soldier on */
+ if (uf == old_uf) {
+ u->field_data[uf].len++;
+ continue;
+ }
+
+ u->field_data[uf].off = p - buf;
+ u->field_data[uf].len = 1;
+
+ u->field_set |= (1 << uf);
+ old_uf = uf;
+ }
+
+ /* host must be present if there is a schema */
+ /* parsing http:///toto will fail */
+ if ((u->field_set & (1 << UF_SCHEMA)) &&
+ (u->field_set & (1 << UF_HOST)) == 0) {
+ return 1;
+ }
+
+ if (u->field_set & (1 << UF_HOST)) {
+ if (http_parse_host(buf, u, found_at) != 0) {
+ return 1;
+ }
+ }
+
+ /* CONNECT requests can only contain "hostname:port" */
+ if (is_connect && u->field_set != ((1 << UF_HOST)|(1 << UF_PORT))) {
+ return 1;
+ }
+
+ if (u->field_set & (1 << UF_PORT)) {
+ /* Don't bother with endp; we've already validated the string */
+ unsigned long v = strtoul(buf + u->field_data[UF_PORT].off, NULL, 10);
+
+ /* Ports have a max value of 2^16 */
+ if (v > 0xffff) {
+ return 1;
+ }
+
+ u->port = (uint16_t) v;
+ }
+
+ return 0;
+}
+
+void
+http_parser_pause(http_parser *parser, int paused) {
+ /* Users should only be pausing/unpausing a parser that is not in an error
+ * state. In non-debug builds, there's not much that we can do about this
+ * other than ignore it.
+ */
+ if (HTTP_PARSER_ERRNO(parser) == HPE_OK ||
+ HTTP_PARSER_ERRNO(parser) == HPE_PAUSED) {
+ SET_ERRNO((paused) ? HPE_PAUSED : HPE_OK);
+ } else {
+ assert(0 && "Attempting to pause parser in error state");
+ }
+}
+
+int
+http_body_is_final(const struct http_parser *parser) {
+ return parser->state == s_message_done;
+}
+
+unsigned long
+http_parser_version(void) {
+ return HTTP_PARSER_VERSION_MAJOR * 0x10000 |
+ HTTP_PARSER_VERSION_MINOR * 0x00100 |
+ HTTP_PARSER_VERSION_PATCH * 0x00001;
+}
diff --git a/src/utility/http_parser.h b/src/utility/http_parser.h
new file mode 100644
index 0000000..472bf54
--- /dev/null
+++ b/src/utility/http_parser.h
@@ -0,0 +1,432 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * 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.
+ */
+#ifndef http_parser_h
+#define http_parser_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Also update SONAME in the Makefile whenever you change these. */
+#define HTTP_PARSER_VERSION_MAJOR 2
+#define HTTP_PARSER_VERSION_MINOR 7
+#define HTTP_PARSER_VERSION_PATCH 1
+
+#if defined(_WIN32) && !defined(__MINGW32__) && \
+ (!defined(_MSC_VER) || _MSC_VER<1600) && !defined(__WINE__)
+#include <BaseTsd.h>
+#include <stddef.h>
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+
+/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
+ * faster
+ */
+#ifndef HTTP_PARSER_STRICT
+# define HTTP_PARSER_STRICT 1
+#endif
+
+/* Maximium header size allowed. If the macro is not defined
+ * before including this header then the default is used. To
+ * change the maximum header size, define the macro in the build
+ * environment (e.g. -DHTTP_MAX_HEADER_SIZE=<value>). To remove
+ * the effective limit on the size of the header, define the macro
+ * to a very large number (e.g. -DHTTP_MAX_HEADER_SIZE=0x7fffffff)
+ */
+#ifndef HTTP_MAX_HEADER_SIZE
+# define HTTP_MAX_HEADER_SIZE (80*1024)
+#endif
+
+typedef struct http_parser http_parser;
+typedef struct http_parser_settings http_parser_settings;
+
+
+/* Callbacks should return non-zero to indicate an error. The parser will
+ * then halt execution.
+ *
+ * The one exception is on_headers_complete. In a HTTP_RESPONSE parser
+ * returning '1' from on_headers_complete will tell the parser that it
+ * should not expect a body. This is used when receiving a response to a
+ * HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
+ * chunked' headers that indicate the presence of a body.
+ *
+ * Returning `2` from on_headers_complete will tell parser that it should not
+ * expect neither a body nor any futher responses on this connection. This is
+ * useful for handling responses to a CONNECT request which may not contain
+ * `Upgrade` or `Connection: upgrade` headers.
+ *
+ * http_data_cb does not return data chunks. It will be called arbitrarily
+ * many times for each string. E.G. you might get 10 callbacks for "on_url"
+ * each providing just a few characters more data.
+ */
+typedef int (*http_data_cb) (http_parser*, const char *at, uint32_t length);
+typedef int (*http_cb) (http_parser*);
+
+
+/* Status Codes */
+#define HTTP_STATUS_MAP(XX) \
+ XX(100, CONTINUE, Continue) \
+ XX(101, SWITCHING_PROTOCOLS, Switching Protocols) \
+ XX(102, PROCESSING, Processing) \
+ XX(200, OK, OK) \
+ XX(201, CREATED, Created) \
+ XX(202, ACCEPTED, Accepted) \
+ XX(203, NON_AUTHORITATIVE_INFORMATION, Non-Authoritative Information) \
+ XX(204, NO_CONTENT, No Content) \
+ XX(205, RESET_CONTENT, Reset Content) \
+ XX(206, PARTIAL_CONTENT, Partial Content) \
+ XX(207, MULTI_STATUS, Multi-Status) \
+ XX(208, ALREADY_REPORTED, Already Reported) \
+ XX(226, IM_USED, IM Used) \
+ XX(300, MULTIPLE_CHOICES, Multiple Choices) \
+ XX(301, MOVED_PERMANENTLY, Moved Permanently) \
+ XX(302, FOUND, Found) \
+ XX(303, SEE_OTHER, See Other) \
+ XX(304, NOT_MODIFIED, Not Modified) \
+ XX(305, USE_PROXY, Use Proxy) \
+ XX(307, TEMPORARY_REDIRECT, Temporary Redirect) \
+ XX(308, PERMANENT_REDIRECT, Permanent Redirect) \
+ XX(400, BAD_REQUEST, Bad Request) \
+ XX(401, UNAUTHORIZED, Unauthorized) \
+ XX(402, PAYMENT_REQUIRED, Payment Required) \
+ XX(403, FORBIDDEN, Forbidden) \
+ XX(404, NOT_FOUND, Not Found) \
+ XX(405, METHOD_NOT_ALLOWED, Method Not Allowed) \
+ XX(406, NOT_ACCEPTABLE, Not Acceptable) \
+ XX(407, PROXY_AUTHENTICATION_REQUIRED, Proxy Authentication Required) \
+ XX(408, REQUEST_TIMEOUT, Request Timeout) \
+ XX(409, CONFLICT, Conflict) \
+ XX(410, GONE, Gone) \
+ XX(411, LENGTH_REQUIRED, Length Required) \
+ XX(412, PRECONDITION_FAILED, Precondition Failed) \
+ XX(413, PAYLOAD_TOO_LARGE, Payload Too Large) \
+ XX(414, URI_TOO_LONG, URI Too Long) \
+ XX(415, UNSUPPORTED_MEDIA_TYPE, Unsupported Media Type) \
+ XX(416, RANGE_NOT_SATISFIABLE, Range Not Satisfiable) \
+ XX(417, EXPECTATION_FAILED, Expectation Failed) \
+ XX(421, MISDIRECTED_REQUEST, Misdirected Request) \
+ XX(422, UNPROCESSABLE_ENTITY, Unprocessable Entity) \
+ XX(423, LOCKED, Locked) \
+ XX(424, FAILED_DEPENDENCY, Failed Dependency) \
+ XX(426, UPGRADE_REQUIRED, Upgrade Required) \
+ XX(428, PRECONDITION_REQUIRED, Precondition Required) \
+ XX(429, TOO_MANY_REQUESTS, Too Many Requests) \
+ XX(431, REQUEST_HEADER_FIELDS_TOO_LARGE, Request Header Fields Too Large) \
+ XX(451, UNAVAILABLE_FOR_LEGAL_REASONS, Unavailable For Legal Reasons) \
+ XX(500, INTERNAL_SERVER_ERROR, Internal Server Error) \
+ XX(501, NOT_IMPLEMENTED, Not Implemented) \
+ XX(502, BAD_GATEWAY, Bad Gateway) \
+ XX(503, SERVICE_UNAVAILABLE, Service Unavailable) \
+ XX(504, GATEWAY_TIMEOUT, Gateway Timeout) \
+ XX(505, HTTP_VERSION_NOT_SUPPORTED, HTTP Version Not Supported) \
+ XX(506, VARIANT_ALSO_NEGOTIATES, Variant Also Negotiates) \
+ XX(507, INSUFFICIENT_STORAGE, Insufficient Storage) \
+ XX(508, LOOP_DETECTED, Loop Detected) \
+ XX(510, NOT_EXTENDED, Not Extended) \
+ XX(511, NETWORK_AUTHENTICATION_REQUIRED, Network Authentication Required) \
+
+enum http_status
+ {
+#define XX(num, name, string) HTTP_STATUS_##name = num,
+ HTTP_STATUS_MAP(XX)
+#undef XX
+ };
+
+
+/* Request Methods */
+#define HTTP_METHOD_MAP(XX) \
+ XX(0, DELETE, DELETE) \
+ XX(1, GET, GET) \
+ XX(2, HEAD, HEAD) \
+ XX(3, POST, POST) \
+ XX(4, PUT, PUT) \
+ /* pathological */ \
+ XX(5, CONNECT, CONNECT) \
+ XX(6, OPTIONS, OPTIONS) \
+ XX(7, TRACE, TRACE) \
+ /* WebDAV */ \
+ XX(8, COPY, COPY) \
+ XX(9, LOCK, LOCK) \
+ XX(10, MKCOL, MKCOL) \
+ XX(11, MOVE, MOVE) \
+ XX(12, PROPFIND, PROPFIND) \
+ XX(13, PROPPATCH, PROPPATCH) \
+ XX(14, SEARCH, SEARCH) \
+ XX(15, UNLOCK, UNLOCK) \
+ XX(16, BIND, BIND) \
+ XX(17, REBIND, REBIND) \
+ XX(18, UNBIND, UNBIND) \
+ XX(19, ACL, ACL) \
+ /* subversion */ \
+ XX(20, REPORT, REPORT) \
+ XX(21, MKACTIVITY, MKACTIVITY) \
+ XX(22, CHECKOUT, CHECKOUT) \
+ XX(23, MERGE, MERGE) \
+ /* upnp */ \
+ XX(24, MSEARCH, M-SEARCH) \
+ XX(25, NOTIFY, NOTIFY) \
+ XX(26, SUBSCRIBE, SUBSCRIBE) \
+ XX(27, UNSUBSCRIBE, UNSUBSCRIBE) \
+ /* RFC-5789 */ \
+ XX(28, PATCH, PATCH) \
+ XX(29, PURGE, PURGE) \
+ /* CalDAV */ \
+ XX(30, MKCALENDAR, MKCALENDAR) \
+ /* RFC-2068, section 19.6.1.2 */ \
+ XX(31, LINK, LINK) \
+ XX(32, UNLINK, UNLINK) \
+
+enum http_method
+ {
+#define XX(num, name, string) HTTP_##name = num,
+ HTTP_METHOD_MAP(XX)
+#undef XX
+ };
+
+
+enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
+
+
+/* Flag values for http_parser.flags field */
+enum flags
+ { F_CHUNKED = 1 << 0
+ , F_CONNECTION_KEEP_ALIVE = 1 << 1
+ , F_CONNECTION_CLOSE = 1 << 2
+ , F_CONNECTION_UPGRADE = 1 << 3
+ , F_TRAILING = 1 << 4
+ , F_UPGRADE = 1 << 5
+ , F_SKIPBODY = 1 << 6
+ , F_CONTENTLENGTH = 1 << 7
+ };
+
+
+/* Map for errno-related constants
+ *
+ * The provided argument should be a macro that takes 2 arguments.
+ */
+#define HTTP_ERRNO_MAP(XX) \
+ /* No error */ \
+ XX(OK, "success") \
+ \
+ /* Callback-related errors */ \
+ XX(CB_message_begin, "the on_message_begin callback failed") \
+ XX(CB_url, "the on_url callback failed") \
+ XX(CB_header_field, "the on_header_field callback failed") \
+ XX(CB_header_value, "the on_header_value callback failed") \
+ XX(CB_headers_complete, "the on_headers_complete callback failed") \
+ XX(CB_body, "the on_body callback failed") \
+ XX(CB_message_complete, "the on_message_complete callback failed") \
+ XX(CB_status, "the on_status callback failed") \
+ XX(CB_chunk_header, "the on_chunk_header callback failed") \
+ XX(CB_chunk_complete, "the on_chunk_complete callback failed") \
+ \
+ /* Parsing-related errors */ \
+ XX(INVALID_EOF_STATE, "stream ended at an unexpected time") \
+ XX(HEADER_OVERFLOW, \
+ "too many header bytes seen; overflow detected") \
+ XX(CLOSED_CONNECTION, \
+ "data received after completed connection: close message") \
+ XX(INVALID_VERSION, "invalid HTTP version") \
+ XX(INVALID_STATUS, "invalid HTTP status code") \
+ XX(INVALID_METHOD, "invalid HTTP method") \
+ XX(INVALID_URL, "invalid URL") \
+ XX(INVALID_HOST, "invalid host") \
+ XX(INVALID_PORT, "invalid port") \
+ XX(INVALID_PATH, "invalid path") \
+ XX(INVALID_QUERY_STRING, "invalid query string") \
+ XX(INVALID_FRAGMENT, "invalid fragment") \
+ XX(LF_EXPECTED, "LF character expected") \
+ XX(INVALID_HEADER_TOKEN, "invalid character in header") \
+ XX(INVALID_CONTENT_LENGTH, \
+ "invalid character in content-length header") \
+ XX(UNEXPECTED_CONTENT_LENGTH, \
+ "unexpected content-length header") \
+ XX(INVALID_CHUNK_SIZE, \
+ "invalid character in chunk size header") \
+ XX(INVALID_CONSTANT, "invalid constant string") \
+ XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
+ XX(STRICT, "strict mode assertion failed") \
+ XX(PAUSED, "parser is paused") \
+ XX(UNKNOWN, "an unknown error occurred")
+
+
+/* Define HPE_* values for each errno value above */
+#define HTTP_ERRNO_GEN(n, s) HPE_##n,
+enum http_errno {
+ HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
+};
+#undef HTTP_ERRNO_GEN
+
+
+/* Get an http_errno value from an http_parser */
+#define HTTP_PARSER_ERRNO(p) ((enum http_errno) (p)->http_errno)
+
+
+struct http_parser {
+ /** PRIVATE **/
+ unsigned int type : 2; /* enum http_parser_type */
+ unsigned int flags : 8; /* F_* values from 'flags' enum; semi-public */
+ unsigned int state : 7; /* enum state from http_parser.c */
+ unsigned int header_state : 7; /* enum header_state from http_parser.c */
+ unsigned int index : 7; /* index into current matcher */
+ unsigned int lenient_http_headers : 1;
+
+ uint32_t nread; /* # bytes read in various scenarios */
+ uint64_t content_length; /* # bytes in body (0 if no Content-Length header) */
+
+ /** READ-ONLY **/
+ unsigned short http_major;
+ unsigned short http_minor;
+ unsigned int status_code : 16; /* responses only */
+ unsigned int method : 8; /* requests only */
+ unsigned int http_errno : 7;
+
+ /* 1 = Upgrade header was present and the parser has exited because of that.
+ * 0 = No upgrade header present.
+ * Should be checked when http_parser_execute() returns in addition to
+ * error checking.
+ */
+ unsigned int upgrade : 1;
+
+ /** PUBLIC **/
+ void *data; /* A pointer to get hook to the "connection" or "socket" object */
+};
+
+
+struct http_parser_settings {
+ http_cb on_message_begin;
+ http_data_cb on_url;
+ http_data_cb on_status;
+ http_data_cb on_header_field;
+ http_data_cb on_header_value;
+ http_cb on_headers_complete;
+ http_data_cb on_body;
+ http_cb on_message_complete;
+ /* When on_chunk_header is called, the current chunk length is stored
+ * in parser->content_length.
+ */
+ http_cb on_chunk_header;
+ http_cb on_chunk_complete;
+};
+
+
+enum http_parser_url_fields
+ { UF_SCHEMA = 0
+ , UF_HOST = 1
+ , UF_PORT = 2
+ , UF_PATH = 3
+ , UF_QUERY = 4
+ , UF_FRAGMENT = 5
+ , UF_USERINFO = 6
+ , UF_MAX = 7
+ };
+
+
+/* Result structure for http_parser_parse_url().
+ *
+ * Callers should index into field_data[] with UF_* values iff field_set
+ * has the relevant (1 << UF_*) bit set. As a courtesy to clients (and
+ * because we probably have padding left over), we convert any port to
+ * a uint16_t.
+ */
+struct http_parser_url {
+ uint16_t field_set; /* Bitmask of (1 << UF_*) values */
+ uint16_t port; /* Converted UF_PORT string */
+
+ struct {
+ uint16_t off; /* Offset into buffer in which field starts */
+ uint16_t len; /* Length of run in buffer */
+ } field_data[UF_MAX];
+};
+
+
+/* Returns the library version. Bits 16-23 contain the major version number,
+ * bits 8-15 the minor version number and bits 0-7 the patch level.
+ * Usage example:
+ *
+ * unsigned long version = http_parser_version();
+ * unsigned major = (version >> 16) & 255;
+ * unsigned minor = (version >> 8) & 255;
+ * unsigned patch = version & 255;
+ * printf("http_parser v%u.%u.%u\n", major, minor, patch);
+ */
+unsigned long http_parser_version(void);
+
+void http_parser_init(http_parser *parser, enum http_parser_type type);
+
+
+/* Initialize http_parser_settings members to 0
+ */
+void http_parser_settings_init(http_parser_settings *settings);
+
+
+/* Executes the parser. Returns number of parsed bytes. Sets
+ * `parser->http_errno` on error. */
+uint32_t http_parser_execute(http_parser *parser,
+ const http_parser_settings *settings,
+ const char *data,
+ uint32_t len);
+
+
+/* If http_should_keep_alive() in the on_headers_complete or
+ * on_message_complete callback returns 0, then this should be
+ * the last message on the connection.
+ * If you are the server, respond with the "Connection: close" header.
+ * If you are the client, close the connection.
+ */
+int http_should_keep_alive(const http_parser *parser);
+
+/* Returns a string version of the HTTP method. */
+const char *http_method_str(enum http_method m);
+
+/* Return a string name of the given error */
+const char *http_errno_name(enum http_errno err);
+
+/* Return a string description of the given error */
+const char *http_errno_description(enum http_errno err);
+
+/* Initialize all http_parser_url members to 0 */
+void http_parser_url_init(struct http_parser_url *u);
+
+/* Parse a URL; return nonzero on failure */
+int http_parser_parse_url(const char *buf, uint32_t buflen,
+ int is_connect,
+ struct http_parser_url *u);
+
+/* Pause or un-pause the parser; a nonzero value pauses */
+void http_parser_pause(http_parser *parser, int paused);
+
+/* Checks if this is the final chunk of the body. */
+int http_body_is_final(const http_parser *parser);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
\ No newline at end of file
From 6159db90b9a4959f574a2adb4e32885ae99f6d21 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 21 Feb 2024 15:30:34 +0100
Subject: [PATCH 2/9] Removed functionalities not related to URL parsing from
the imported library
---
src/utility/http_parser.c | 1888 -------------------------------------
src/utility/http_parser.h | 336 -------
2 files changed, 2224 deletions(-)
diff --git a/src/utility/http_parser.c b/src/utility/http_parser.c
index b6bd43e..f1be647 100644
--- a/src/utility/http_parser.c
+++ b/src/utility/http_parser.c
@@ -29,210 +29,17 @@
#include <string.h>
#include <limits.h>
-#ifndef ULLONG_MAX
-# define ULLONG_MAX ((uint64_t) -1) /* 2^64-1 */
-#endif
-
-#ifndef MIN
-# define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-
-#ifndef ARRAY_SIZE
-# define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-#endif
-
#ifndef BIT_AT
# define BIT_AT(a, i) \
(!!((unsigned int) (a)[(unsigned int) (i) >> 3] & \
(1 << ((unsigned int) (i) & 7))))
#endif
-#ifndef ELEM_AT
-# define ELEM_AT(a, i, v) ((unsigned int) (i) < ARRAY_SIZE(a) ? (a)[(i)] : (v))
-#endif
-
#define SET_ERRNO(e) \
do { \
parser->http_errno = (e); \
} while(0)
-#define CURRENT_STATE() p_state
-#define UPDATE_STATE(V) p_state = (enum state) (V);
-#define RETURN(V) \
-do { \
- parser->state = CURRENT_STATE(); \
- return (V); \
-} while (0);
-#define REEXECUTE() \
- goto reexecute; \
-
-
-#ifdef __GNUC__
-# define LIKELY(X) __builtin_expect(!!(X), 1)
-# define UNLIKELY(X) __builtin_expect(!!(X), 0)
-#else
-# define LIKELY(X) (X)
-# define UNLIKELY(X) (X)
-#endif
-
-
-/* Run the notify callback FOR, returning ER if it fails */
-#define CALLBACK_NOTIFY_(FOR, ER) \
-do { \
- assert(HTTP_PARSER_ERRNO(parser) == HPE_OK); \
- \
- if (LIKELY(settings->on_##FOR)) { \
- parser->state = CURRENT_STATE(); \
- if (UNLIKELY(0 != settings->on_##FOR(parser))) { \
- SET_ERRNO(HPE_CB_##FOR); \
- } \
- UPDATE_STATE(parser->state); \
- \
- /* We either errored above or got paused; get out */ \
- if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) { \
- return (ER); \
- } \
- } \
-} while (0)
-
-/* Run the notify callback FOR and consume the current byte */
-#define CALLBACK_NOTIFY(FOR) CALLBACK_NOTIFY_(FOR, p - data + 1)
-
-/* Run the notify callback FOR and don't consume the current byte */
-#define CALLBACK_NOTIFY_NOADVANCE(FOR) CALLBACK_NOTIFY_(FOR, p - data)
-
-/* Run data callback FOR with LEN bytes, returning ER if it fails */
-#define CALLBACK_DATA_(FOR, LEN, ER) \
-do { \
- assert(HTTP_PARSER_ERRNO(parser) == HPE_OK); \
- \
- if (FOR##_mark) { \
- if (LIKELY(settings->on_##FOR)) { \
- parser->state = CURRENT_STATE(); \
- if (UNLIKELY(0 != \
- settings->on_##FOR(parser, FOR##_mark, (LEN)))) { \
- SET_ERRNO(HPE_CB_##FOR); \
- } \
- UPDATE_STATE(parser->state); \
- \
- /* We either errored above or got paused; get out */ \
- if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) { \
- return (ER); \
- } \
- } \
- FOR##_mark = NULL; \
- } \
-} while (0)
-
-/* Run the data callback FOR and consume the current byte */
-#define CALLBACK_DATA(FOR) \
- CALLBACK_DATA_(FOR, p - FOR##_mark, p - data + 1)
-
-/* Run the data callback FOR and don't consume the current byte */
-#define CALLBACK_DATA_NOADVANCE(FOR) \
- CALLBACK_DATA_(FOR, p - FOR##_mark, p - data)
-
-/* Set the mark FOR; non-destructive if mark is already set */
-#define MARK(FOR) \
-do { \
- if (!FOR##_mark) { \
- FOR##_mark = p; \
- } \
-} while (0)
-
-/* Don't allow the total size of the HTTP headers (including the status
- * line) to exceed HTTP_MAX_HEADER_SIZE. This check is here to protect
- * embedders against denial-of-service attacks where the attacker feeds
- * us a never-ending header that the embedder keeps buffering.
- *
- * This check is arguably the responsibility of embedders but we're doing
- * it on the embedder's behalf because most won't bother and this way we
- * make the web a little safer. HTTP_MAX_HEADER_SIZE is still far bigger
- * than any reasonable request or response so this should never affect
- * day-to-day operation.
- */
-#define COUNT_HEADER_SIZE(V) \
-do { \
- parser->nread += (V); \
- if (UNLIKELY(parser->nread > (HTTP_MAX_HEADER_SIZE))) { \
- SET_ERRNO(HPE_HEADER_OVERFLOW); \
- goto error; \
- } \
-} while (0)
-
-
-#define PROXY_CONNECTION "proxy-connection"
-#define CONNECTION "connection"
-#define CONTENT_LENGTH "content-length"
-#define TRANSFER_ENCODING "transfer-encoding"
-#define UPGRADE "upgrade"
-#define CHUNKED "chunked"
-#define KEEP_ALIVE "keep-alive"
-#define CLOSE "close"
-
-
-static const char *method_strings[] =
- {
-#define XX(num, name, string) #string,
- HTTP_METHOD_MAP(XX)
-#undef XX
- };
-
-
-/* Tokens as defined by rfc 2616. Also lowercases them.
- * token = 1*<any CHAR except CTLs or separators>
- * separators = "(" | ")" | "<" | ">" | "@"
- * | "," | ";" | ":" | "\" | <">
- * | "/" | "[" | "]" | "?" | "="
- * | "{" | "}" | SP | HT
- */
-static const char tokens[256] = {
-/* 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel */
- 0, 0, 0, 0, 0, 0, 0, 0,
-/* 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si */
- 0, 0, 0, 0, 0, 0, 0, 0,
-/* 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb */
- 0, 0, 0, 0, 0, 0, 0, 0,
-/* 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us */
- 0, 0, 0, 0, 0, 0, 0, 0,
-/* 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' */
- 0, '!', 0, '#', '$', '%', '&', '\'',
-/* 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / */
- 0, 0, '*', '+', 0, '-', '.', 0,
-/* 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 */
- '0', '1', '2', '3', '4', '5', '6', '7',
-/* 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? */
- '8', '9', 0, 0, 0, 0, 0, 0,
-/* 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G */
- 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
-/* 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O */
- 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
-/* 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W */
- 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
-/* 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ */
- 'x', 'y', 'z', 0, 0, 0, '^', '_',
-/* 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g */
- '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
-/* 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o */
- 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
-/* 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w */
- 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
-/* 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del */
- 'x', 'y', 'z', 0, '|', 0, '~', 0 };
-
-
-static const int8_t unhex[256] =
- {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
- ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
- ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
- , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1
- ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
- ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
- ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
- ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
- };
-
-
#if HTTP_PARSER_STRICT
# define T(v) 0
#else
@@ -279,26 +86,8 @@ static const uint8_t normal_url_char[32] = {
enum state
{ s_dead = 1 /* important that this is > 0 */
- , s_start_req_or_res
- , s_res_or_resp_H
- , s_start_res
- , s_res_H
- , s_res_HT
- , s_res_HTT
- , s_res_HTTP
- , s_res_first_http_major
- , s_res_http_major
- , s_res_first_http_minor
- , s_res_http_minor
- , s_res_first_status_code
- , s_res_status_code
- , s_res_status_start
- , s_res_status
- , s_res_line_almost_done
-
, s_start_req
- , s_req_method
, s_req_spaces_before_url
, s_req_schema
, s_req_schema_slash
@@ -311,83 +100,7 @@ enum state
, s_req_query_string
, s_req_fragment_start
, s_req_fragment
- , s_req_http_start
- , s_req_http_H
- , s_req_http_HT
- , s_req_http_HTT
- , s_req_http_HTTP
- , s_req_first_http_major
- , s_req_http_major
- , s_req_first_http_minor
- , s_req_http_minor
- , s_req_line_almost_done
-
- , s_header_field_start
- , s_header_field
- , s_header_value_discard_ws
- , s_header_value_discard_ws_almost_done
- , s_header_value_discard_lws
- , s_header_value_start
- , s_header_value
- , s_header_value_lws
-
- , s_header_almost_done
-
- , s_chunk_size_start
- , s_chunk_size
- , s_chunk_parameters
- , s_chunk_size_almost_done
-
- , s_headers_almost_done
, s_headers_done
-
- /* Important: 's_headers_done' must be the last 'header' state. All
- * states beyond this must be 'body' states. It is used for overflow
- * checking. See the PARSING_HEADER() macro.
- */
-
- , s_chunk_data
- , s_chunk_data_almost_done
- , s_chunk_data_done
-
- , s_body_identity
- , s_body_identity_eof
-
- , s_message_done
- };
-
-
-#define PARSING_HEADER(state) (state <= s_headers_done)
-
-
-enum header_states
- { h_general = 0
- , h_C
- , h_CO
- , h_CON
-
- , h_matching_connection
- , h_matching_proxy_connection
- , h_matching_content_length
- , h_matching_transfer_encoding
- , h_matching_upgrade
-
- , h_connection
- , h_content_length
- , h_transfer_encoding
- , h_upgrade
-
- , h_matching_transfer_encoding_chunked
- , h_matching_connection_token_start
- , h_matching_connection_keep_alive
- , h_matching_connection_close
- , h_matching_connection_upgrade
- , h_matching_connection_token
-
- , h_transfer_encoding_chunked
- , h_connection_keep_alive
- , h_connection_close
- , h_connection_upgrade
};
enum http_host_state
@@ -407,8 +120,6 @@ enum http_host_state
};
/* Macros for character classes; depends on strict-mode */
-#define CR '\r'
-#define LF '\n'
#define LOWER(c) (unsigned char)(c | 0x20)
#define IS_ALPHA(c) (LOWER(c) >= 'a' && LOWER(c) <= 'z')
#define IS_NUM(c) ((c) >= '0' && (c) <= '9')
@@ -421,57 +132,16 @@ enum http_host_state
(c) == ';' || (c) == ':' || (c) == '&' || (c) == '=' || (c) == '+' || \
(c) == '$' || (c) == ',')
-#define STRICT_TOKEN(c) (tokens[(unsigned char)c])
-
#if HTTP_PARSER_STRICT
-#define TOKEN(c) (tokens[(unsigned char)c])
#define IS_URL_CHAR(c) (BIT_AT(normal_url_char, (unsigned char)c))
#define IS_HOST_CHAR(c) (IS_ALPHANUM(c) || (c) == '.' || (c) == '-')
#else
-#define TOKEN(c) ((c == ' ') ? ' ' : tokens[(unsigned char)c])
#define IS_URL_CHAR(c) \
(BIT_AT(normal_url_char, (unsigned char)c) || ((c) & 0x80))
#define IS_HOST_CHAR(c) \
(IS_ALPHANUM(c) || (c) == '.' || (c) == '-' || (c) == '_')
#endif
-/**
- * Verify that a char is a valid visible (printable) US-ASCII
- * character or %x80-FF
- **/
-#define IS_HEADER_CHAR(ch) \
- (ch == CR || ch == LF || ch == 9 || ((unsigned char)ch > 31 && ch != 127))
-
-#define start_state (parser->type == HTTP_REQUEST ? s_start_req : s_start_res)
-
-
-#if HTTP_PARSER_STRICT
-# define STRICT_CHECK(cond) \
-do { \
- if (cond) { \
- SET_ERRNO(HPE_STRICT); \
- goto error; \
- } \
-} while (0)
-# define NEW_MESSAGE() (http_should_keep_alive(parser) ? start_state : s_dead)
-#else
-# define STRICT_CHECK(cond)
-# define NEW_MESSAGE() start_state
-#endif
-
-
-/* Map errno values to strings for human-readable output */
-#define HTTP_STRERROR_GEN(n, s) { "HPE_" #n, s },
-static struct {
- const char *name;
- const char *description;
-} http_strerror_tab[] = {
- HTTP_ERRNO_MAP(HTTP_STRERROR_GEN)
-};
-#undef HTTP_STRERROR_GEN
-
-int http_message_needs_eof(const http_parser *parser);
-
/* Our URL parser.
*
* This is designed to be shared by http_parser_execute() for URL validation,
@@ -631,1545 +301,6 @@ parse_url_char(enum state s, const char ch)
return s_dead;
}
-uint32_t http_parser_execute (http_parser *parser,
- const http_parser_settings *settings,
- const char *data,
- uint32_t len)
-{
- char c, ch;
- int8_t unhex_val;
- const char *p = data;
- const char *header_field_mark = 0;
- const char *header_value_mark = 0;
- const char *url_mark = 0;
- const char *body_mark = 0;
- const char *status_mark = 0;
- enum state p_state = (enum state) parser->state;
- const unsigned int lenient = parser->lenient_http_headers;
-
- /* We're in an error state. Don't bother doing anything. */
- if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
- return 0;
- }
-
- if (len == 0) {
- switch (CURRENT_STATE()) {
- case s_body_identity_eof:
- /* Use of CALLBACK_NOTIFY() here would erroneously return 1 byte read if
- * we got paused.
- */
- CALLBACK_NOTIFY_NOADVANCE(message_complete);
- return 0;
-
- case s_dead:
- case s_start_req_or_res:
- case s_start_res:
- case s_start_req:
- return 0;
-
- default:
- SET_ERRNO(HPE_INVALID_EOF_STATE);
- return 1;
- }
- }
-
-
- if (CURRENT_STATE() == s_header_field)
- header_field_mark = data;
- if (CURRENT_STATE() == s_header_value)
- header_value_mark = data;
- switch (CURRENT_STATE()) {
- case s_req_path:
- case s_req_schema:
- case s_req_schema_slash:
- case s_req_schema_slash_slash:
- case s_req_server_start:
- case s_req_server:
- case s_req_server_with_at:
- case s_req_query_string_start:
- case s_req_query_string:
- case s_req_fragment_start:
- case s_req_fragment:
- url_mark = data;
- break;
- case s_res_status:
- status_mark = data;
- break;
- default:
- break;
- }
-
- for (p=data; p != data + len; p++) {
- ch = *p;
-
- if (PARSING_HEADER(CURRENT_STATE()))
- COUNT_HEADER_SIZE(1);
-
-reexecute:
- switch (CURRENT_STATE()) {
-
- case s_dead:
- /* this state is used after a 'Connection: close' message
- * the parser will error out if it reads another message
- */
- if (LIKELY(ch == CR || ch == LF))
- break;
-
- SET_ERRNO(HPE_CLOSED_CONNECTION);
- goto error;
-
- case s_start_req_or_res:
- {
- if (ch == CR || ch == LF)
- break;
- parser->flags = 0;
- parser->content_length = ULLONG_MAX;
-
- if (ch == 'H') {
- UPDATE_STATE(s_res_or_resp_H);
-
- CALLBACK_NOTIFY(message_begin);
- } else {
- parser->type = HTTP_REQUEST;
- UPDATE_STATE(s_start_req);
- REEXECUTE();
- }
-
- break;
- }
-
- case s_res_or_resp_H:
- if (ch == 'T') {
- parser->type = HTTP_RESPONSE;
- UPDATE_STATE(s_res_HT);
- } else {
- if (UNLIKELY(ch != 'E')) {
- SET_ERRNO(HPE_INVALID_CONSTANT);
- goto error;
- }
-
- parser->type = HTTP_REQUEST;
- parser->method = HTTP_HEAD;
- parser->index = 2;
- UPDATE_STATE(s_req_method);
- }
- break;
-
- case s_start_res:
- {
- parser->flags = 0;
- parser->content_length = ULLONG_MAX;
-
- switch (ch) {
- case 'H':
- UPDATE_STATE(s_res_H);
- break;
-
- case CR:
- case LF:
- break;
-
- default:
- SET_ERRNO(HPE_INVALID_CONSTANT);
- goto error;
- }
-
- CALLBACK_NOTIFY(message_begin);
- break;
- }
-
- case s_res_H:
- STRICT_CHECK(ch != 'T');
- UPDATE_STATE(s_res_HT);
- break;
-
- case s_res_HT:
- STRICT_CHECK(ch != 'T');
- UPDATE_STATE(s_res_HTT);
- break;
-
- case s_res_HTT:
- STRICT_CHECK(ch != 'P');
- UPDATE_STATE(s_res_HTTP);
- break;
-
- case s_res_HTTP:
- STRICT_CHECK(ch != '/');
- UPDATE_STATE(s_res_first_http_major);
- break;
-
- case s_res_first_http_major:
- if (UNLIKELY(ch < '0' || ch > '9')) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_major = ch - '0';
- UPDATE_STATE(s_res_http_major);
- break;
-
- /* major HTTP version or dot */
- case s_res_http_major:
- {
- if (ch == '.') {
- UPDATE_STATE(s_res_first_http_minor);
- break;
- }
-
- if (!IS_NUM(ch)) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_major *= 10;
- parser->http_major += ch - '0';
-
- if (UNLIKELY(parser->http_major > 999)) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- break;
- }
-
- /* first digit of minor HTTP version */
- case s_res_first_http_minor:
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_minor = ch - '0';
- UPDATE_STATE(s_res_http_minor);
- break;
-
- /* minor HTTP version or end of request line */
- case s_res_http_minor:
- {
- if (ch == ' ') {
- UPDATE_STATE(s_res_first_status_code);
- break;
- }
-
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_minor *= 10;
- parser->http_minor += ch - '0';
-
- if (UNLIKELY(parser->http_minor > 999)) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- break;
- }
-
- case s_res_first_status_code:
- {
- if (!IS_NUM(ch)) {
- if (ch == ' ') {
- break;
- }
-
- SET_ERRNO(HPE_INVALID_STATUS);
- goto error;
- }
- parser->status_code = ch - '0';
- UPDATE_STATE(s_res_status_code);
- break;
- }
-
- case s_res_status_code:
- {
- if (!IS_NUM(ch)) {
- switch (ch) {
- case ' ':
- UPDATE_STATE(s_res_status_start);
- break;
- case CR:
- UPDATE_STATE(s_res_line_almost_done);
- break;
- case LF:
- UPDATE_STATE(s_header_field_start);
- break;
- default:
- SET_ERRNO(HPE_INVALID_STATUS);
- goto error;
- }
- break;
- }
-
- parser->status_code *= 10;
- parser->status_code += ch - '0';
-
- if (UNLIKELY(parser->status_code > 999)) {
- SET_ERRNO(HPE_INVALID_STATUS);
- goto error;
- }
-
- break;
- }
-
- case s_res_status_start:
- {
- if (ch == CR) {
- UPDATE_STATE(s_res_line_almost_done);
- break;
- }
-
- if (ch == LF) {
- UPDATE_STATE(s_header_field_start);
- break;
- }
-
- MARK(status);
- UPDATE_STATE(s_res_status);
- parser->index = 0;
- break;
- }
-
- case s_res_status:
- if (ch == CR) {
- UPDATE_STATE(s_res_line_almost_done);
- CALLBACK_DATA(status);
- break;
- }
-
- if (ch == LF) {
- UPDATE_STATE(s_header_field_start);
- CALLBACK_DATA(status);
- break;
- }
-
- break;
-
- case s_res_line_almost_done:
- STRICT_CHECK(ch != LF);
- UPDATE_STATE(s_header_field_start);
- break;
-
- case s_start_req:
- {
- if (ch == CR || ch == LF)
- break;
- parser->flags = 0;
- parser->content_length = ULLONG_MAX;
-
- if (UNLIKELY(!IS_ALPHA(ch))) {
- SET_ERRNO(HPE_INVALID_METHOD);
- goto error;
- }
-
- parser->method = (enum http_method) 0;
- parser->index = 1;
- switch (ch) {
- case 'A': parser->method = HTTP_ACL; break;
- case 'B': parser->method = HTTP_BIND; break;
- case 'C': parser->method = HTTP_CONNECT; /* or COPY, CHECKOUT */ break;
- case 'D': parser->method = HTTP_DELETE; break;
- case 'G': parser->method = HTTP_GET; break;
- case 'H': parser->method = HTTP_HEAD; break;
- case 'L': parser->method = HTTP_LOCK; /* or LINK */ break;
- case 'M': parser->method = HTTP_MKCOL; /* or MOVE, MKACTIVITY, MERGE, M-SEARCH, MKCALENDAR */ break;
- case 'N': parser->method = HTTP_NOTIFY; break;
- case 'O': parser->method = HTTP_OPTIONS; break;
- case 'P': parser->method = HTTP_POST;
- /* or PROPFIND|PROPPATCH|PUT|PATCH|PURGE */
- break;
- case 'R': parser->method = HTTP_REPORT; /* or REBIND */ break;
- case 'S': parser->method = HTTP_SUBSCRIBE; /* or SEARCH */ break;
- case 'T': parser->method = HTTP_TRACE; break;
- case 'U': parser->method = HTTP_UNLOCK; /* or UNSUBSCRIBE, UNBIND, UNLINK */ break;
- default:
- SET_ERRNO(HPE_INVALID_METHOD);
- goto error;
- }
- UPDATE_STATE(s_req_method);
-
- CALLBACK_NOTIFY(message_begin);
-
- break;
- }
-
- case s_req_method:
- {
- const char *matcher;
- if (UNLIKELY(ch == '\0')) {
- SET_ERRNO(HPE_INVALID_METHOD);
- goto error;
- }
-
- matcher = method_strings[parser->method];
- if (ch == ' ' && matcher[parser->index] == '\0') {
- UPDATE_STATE(s_req_spaces_before_url);
- } else if (ch == matcher[parser->index]) {
- ; /* nada */
- } else if (IS_ALPHA(ch)) {
-
- switch (parser->method << 16 | parser->index << 8 | ch) {
-#define XX(meth, pos, ch, new_meth) \
- case (HTTP_##meth << 16 | pos << 8 | ch): \
- parser->method = HTTP_##new_meth; break;
-
- XX(POST, 1, 'U', PUT)
- XX(POST, 1, 'A', PATCH)
- XX(CONNECT, 1, 'H', CHECKOUT)
- XX(CONNECT, 2, 'P', COPY)
- XX(MKCOL, 1, 'O', MOVE)
- XX(MKCOL, 1, 'E', MERGE)
- XX(MKCOL, 2, 'A', MKACTIVITY)
- XX(MKCOL, 3, 'A', MKCALENDAR)
- XX(SUBSCRIBE, 1, 'E', SEARCH)
- XX(REPORT, 2, 'B', REBIND)
- XX(POST, 1, 'R', PROPFIND)
- XX(PROPFIND, 4, 'P', PROPPATCH)
- XX(PUT, 2, 'R', PURGE)
- XX(LOCK, 1, 'I', LINK)
- XX(UNLOCK, 2, 'S', UNSUBSCRIBE)
- XX(UNLOCK, 2, 'B', UNBIND)
- XX(UNLOCK, 3, 'I', UNLINK)
-#undef XX
-
- default:
- SET_ERRNO(HPE_INVALID_METHOD);
- goto error;
- }
- } else if (ch == '-' &&
- parser->index == 1 &&
- parser->method == HTTP_MKCOL) {
- parser->method = HTTP_MSEARCH;
- } else {
- SET_ERRNO(HPE_INVALID_METHOD);
- goto error;
- }
-
- ++parser->index;
- break;
- }
-
- case s_req_spaces_before_url:
- {
- if (ch == ' ') break;
-
- MARK(url);
- if (parser->method == HTTP_CONNECT) {
- UPDATE_STATE(s_req_server_start);
- }
-
- UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
- if (UNLIKELY(CURRENT_STATE() == s_dead)) {
- SET_ERRNO(HPE_INVALID_URL);
- goto error;
- }
-
- break;
- }
-
- case s_req_schema:
- case s_req_schema_slash:
- case s_req_schema_slash_slash:
- case s_req_server_start:
- {
- switch (ch) {
- /* No whitespace allowed here */
- case ' ':
- case CR:
- case LF:
- SET_ERRNO(HPE_INVALID_URL);
- goto error;
- default:
- UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
- if (UNLIKELY(CURRENT_STATE() == s_dead)) {
- SET_ERRNO(HPE_INVALID_URL);
- goto error;
- }
- }
-
- break;
- }
-
- case s_req_server:
- case s_req_server_with_at:
- case s_req_path:
- case s_req_query_string_start:
- case s_req_query_string:
- case s_req_fragment_start:
- case s_req_fragment:
- {
- switch (ch) {
- case ' ':
- UPDATE_STATE(s_req_http_start);
- CALLBACK_DATA(url);
- break;
- case CR:
- case LF:
- parser->http_major = 0;
- parser->http_minor = 9;
- UPDATE_STATE((ch == CR) ?
- s_req_line_almost_done :
- s_header_field_start);
- CALLBACK_DATA(url);
- break;
- default:
- UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
- if (UNLIKELY(CURRENT_STATE() == s_dead)) {
- SET_ERRNO(HPE_INVALID_URL);
- goto error;
- }
- }
- break;
- }
-
- case s_req_http_start:
- switch (ch) {
- case 'H':
- UPDATE_STATE(s_req_http_H);
- break;
- case ' ':
- break;
- default:
- SET_ERRNO(HPE_INVALID_CONSTANT);
- goto error;
- }
- break;
-
- case s_req_http_H:
- STRICT_CHECK(ch != 'T');
- UPDATE_STATE(s_req_http_HT);
- break;
-
- case s_req_http_HT:
- STRICT_CHECK(ch != 'T');
- UPDATE_STATE(s_req_http_HTT);
- break;
-
- case s_req_http_HTT:
- STRICT_CHECK(ch != 'P');
- UPDATE_STATE(s_req_http_HTTP);
- break;
-
- case s_req_http_HTTP:
- STRICT_CHECK(ch != '/');
- UPDATE_STATE(s_req_first_http_major);
- break;
-
- /* first digit of major HTTP version */
- case s_req_first_http_major:
- if (UNLIKELY(ch < '1' || ch > '9')) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_major = ch - '0';
- UPDATE_STATE(s_req_http_major);
- break;
-
- /* major HTTP version or dot */
- case s_req_http_major:
- {
- if (ch == '.') {
- UPDATE_STATE(s_req_first_http_minor);
- break;
- }
-
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_major *= 10;
- parser->http_major += ch - '0';
-
- if (UNLIKELY(parser->http_major > 999)) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- break;
- }
-
- /* first digit of minor HTTP version */
- case s_req_first_http_minor:
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_minor = ch - '0';
- UPDATE_STATE(s_req_http_minor);
- break;
-
- /* minor HTTP version or end of request line */
- case s_req_http_minor:
- {
- if (ch == CR) {
- UPDATE_STATE(s_req_line_almost_done);
- break;
- }
-
- if (ch == LF) {
- UPDATE_STATE(s_header_field_start);
- break;
- }
-
- /* XXX allow spaces after digit? */
-
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- parser->http_minor *= 10;
- parser->http_minor += ch - '0';
-
- if (UNLIKELY(parser->http_minor > 999)) {
- SET_ERRNO(HPE_INVALID_VERSION);
- goto error;
- }
-
- break;
- }
-
- /* end of request line */
- case s_req_line_almost_done:
- {
- if (UNLIKELY(ch != LF)) {
- SET_ERRNO(HPE_LF_EXPECTED);
- goto error;
- }
-
- UPDATE_STATE(s_header_field_start);
- break;
- }
-
- case s_header_field_start:
- {
- if (ch == CR) {
- UPDATE_STATE(s_headers_almost_done);
- break;
- }
-
- if (ch == LF) {
- /* they might be just sending \n instead of \r\n so this would be
- * the second \n to denote the end of headers*/
- UPDATE_STATE(s_headers_almost_done);
- REEXECUTE();
- }
-
- c = TOKEN(ch);
-
- if (UNLIKELY(!c)) {
- SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
- goto error;
- }
-
- MARK(header_field);
-
- parser->index = 0;
- UPDATE_STATE(s_header_field);
-
- switch (c) {
- case 'c':
- parser->header_state = h_C;
- break;
-
- case 'p':
- parser->header_state = h_matching_proxy_connection;
- break;
-
- case 't':
- parser->header_state = h_matching_transfer_encoding;
- break;
-
- case 'u':
- parser->header_state = h_matching_upgrade;
- break;
-
- default:
- parser->header_state = h_general;
- break;
- }
- break;
- }
-
- case s_header_field:
- {
- const char* start = p;
- for (; p != data + len; p++) {
- ch = *p;
- c = TOKEN(ch);
-
- if (!c)
- break;
-
- switch (parser->header_state) {
- case h_general:
- break;
-
- case h_C:
- parser->index++;
- parser->header_state = (c == 'o' ? h_CO : h_general);
- break;
-
- case h_CO:
- parser->index++;
- parser->header_state = (c == 'n' ? h_CON : h_general);
- break;
-
- case h_CON:
- parser->index++;
- switch (c) {
- case 'n':
- parser->header_state = h_matching_connection;
- break;
- case 't':
- parser->header_state = h_matching_content_length;
- break;
- default:
- parser->header_state = h_general;
- break;
- }
- break;
-
- /* connection */
-
- case h_matching_connection:
- parser->index++;
- if (parser->index > sizeof(CONNECTION)-1
- || c != CONNECTION[parser->index]) {
- parser->header_state = h_general;
- } else if (parser->index == sizeof(CONNECTION)-2) {
- parser->header_state = h_connection;
- }
- break;
-
- /* proxy-connection */
-
- case h_matching_proxy_connection:
- parser->index++;
- if (parser->index > sizeof(PROXY_CONNECTION)-1
- || c != PROXY_CONNECTION[parser->index]) {
- parser->header_state = h_general;
- } else if (parser->index == sizeof(PROXY_CONNECTION)-2) {
- parser->header_state = h_connection;
- }
- break;
-
- /* content-length */
-
- case h_matching_content_length:
- parser->index++;
- if (parser->index > sizeof(CONTENT_LENGTH)-1
- || c != CONTENT_LENGTH[parser->index]) {
- parser->header_state = h_general;
- } else if (parser->index == sizeof(CONTENT_LENGTH)-2) {
- parser->header_state = h_content_length;
- }
- break;
-
- /* transfer-encoding */
-
- case h_matching_transfer_encoding:
- parser->index++;
- if (parser->index > sizeof(TRANSFER_ENCODING)-1
- || c != TRANSFER_ENCODING[parser->index]) {
- parser->header_state = h_general;
- } else if (parser->index == sizeof(TRANSFER_ENCODING)-2) {
- parser->header_state = h_transfer_encoding;
- }
- break;
-
- /* upgrade */
-
- case h_matching_upgrade:
- parser->index++;
- if (parser->index > sizeof(UPGRADE)-1
- || c != UPGRADE[parser->index]) {
- parser->header_state = h_general;
- } else if (parser->index == sizeof(UPGRADE)-2) {
- parser->header_state = h_upgrade;
- }
- break;
-
- case h_connection:
- case h_content_length:
- case h_transfer_encoding:
- case h_upgrade:
- if (ch != ' ') parser->header_state = h_general;
- break;
-
- default:
- assert(0 && "Unknown header_state");
- break;
- }
- }
-
- COUNT_HEADER_SIZE(p - start);
-
- if (p == data + len) {
- --p;
- break;
- }
-
- if (ch == ':') {
- UPDATE_STATE(s_header_value_discard_ws);
- CALLBACK_DATA(header_field);
- break;
- }
-
- SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
- goto error;
- }
-
- case s_header_value_discard_ws:
- if (ch == ' ' || ch == '\t') break;
-
- if (ch == CR) {
- UPDATE_STATE(s_header_value_discard_ws_almost_done);
- break;
- }
-
- if (ch == LF) {
- UPDATE_STATE(s_header_value_discard_lws);
- break;
- }
-
- /* FALLTHROUGH */
-
- case s_header_value_start:
- {
- MARK(header_value);
-
- UPDATE_STATE(s_header_value);
- parser->index = 0;
-
- c = LOWER(ch);
-
- switch (parser->header_state) {
- case h_upgrade:
- parser->flags |= F_UPGRADE;
- parser->header_state = h_general;
- break;
-
- case h_transfer_encoding:
- /* looking for 'Transfer-Encoding: chunked' */
- if ('c' == c) {
- parser->header_state = h_matching_transfer_encoding_chunked;
- } else {
- parser->header_state = h_general;
- }
- break;
-
- case h_content_length:
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
- goto error;
- }
-
- if (parser->flags & F_CONTENTLENGTH) {
- SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
- goto error;
- }
-
- parser->flags |= F_CONTENTLENGTH;
- parser->content_length = ch - '0';
- break;
-
- case h_connection:
- /* looking for 'Connection: keep-alive' */
- if (c == 'k') {
- parser->header_state = h_matching_connection_keep_alive;
- /* looking for 'Connection: close' */
- } else if (c == 'c') {
- parser->header_state = h_matching_connection_close;
- } else if (c == 'u') {
- parser->header_state = h_matching_connection_upgrade;
- } else {
- parser->header_state = h_matching_connection_token;
- }
- break;
-
- /* Multi-value `Connection` header */
- case h_matching_connection_token_start:
- break;
-
- default:
- parser->header_state = h_general;
- break;
- }
- break;
- }
-
- case s_header_value:
- {
- const char* start = p;
- enum header_states h_state = (enum header_states) parser->header_state;
- for (; p != data + len; p++) {
- ch = *p;
- if (ch == CR) {
- UPDATE_STATE(s_header_almost_done);
- parser->header_state = h_state;
- CALLBACK_DATA(header_value);
- break;
- }
-
- if (ch == LF) {
- UPDATE_STATE(s_header_almost_done);
- COUNT_HEADER_SIZE(p - start);
- parser->header_state = h_state;
- CALLBACK_DATA_NOADVANCE(header_value);
- REEXECUTE();
- }
-
- if (!lenient && !IS_HEADER_CHAR(ch)) {
- SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
- goto error;
- }
-
- c = LOWER(ch);
-
- switch (h_state) {
- case h_general:
- {
- const char* p_cr;
- const char* p_lf;
- uint32_t limit = data + len - p;
-
- limit = MIN(limit, HTTP_MAX_HEADER_SIZE);
-
- p_cr = (const char*) memchr(p, CR, limit);
- p_lf = (const char*) memchr(p, LF, limit);
- if (p_cr != NULL) {
- if (p_lf != NULL && p_cr >= p_lf)
- p = p_lf;
- else
- p = p_cr;
- } else if (UNLIKELY(p_lf != NULL)) {
- p = p_lf;
- } else {
- p = data + len;
- }
- --p;
-
- break;
- }
-
- case h_connection:
- case h_transfer_encoding:
- assert(0 && "Shouldn't get here.");
- break;
-
- case h_content_length:
- {
- uint64_t t;
-
- if (ch == ' ') break;
-
- if (UNLIKELY(!IS_NUM(ch))) {
- SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
- parser->header_state = h_state;
- goto error;
- }
-
- t = parser->content_length;
- t *= 10;
- t += ch - '0';
-
- /* Overflow? Test against a conservative limit for simplicity. */
- if (UNLIKELY((ULLONG_MAX - 10) / 10 < parser->content_length)) {
- SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
- parser->header_state = h_state;
- goto error;
- }
-
- parser->content_length = t;
- break;
- }
-
- /* Transfer-Encoding: chunked */
- case h_matching_transfer_encoding_chunked:
- parser->index++;
- if (parser->index > sizeof(CHUNKED)-1
- || c != CHUNKED[parser->index]) {
- h_state = h_general;
- } else if (parser->index == sizeof(CHUNKED)-2) {
- h_state = h_transfer_encoding_chunked;
- }
- break;
-
- case h_matching_connection_token_start:
- /* looking for 'Connection: keep-alive' */
- if (c == 'k') {
- h_state = h_matching_connection_keep_alive;
- /* looking for 'Connection: close' */
- } else if (c == 'c') {
- h_state = h_matching_connection_close;
- } else if (c == 'u') {
- h_state = h_matching_connection_upgrade;
- } else if (STRICT_TOKEN(c)) {
- h_state = h_matching_connection_token;
- } else if (c == ' ' || c == '\t') {
- /* Skip lws */
- } else {
- h_state = h_general;
- }
- break;
-
- /* looking for 'Connection: keep-alive' */
- case h_matching_connection_keep_alive:
- parser->index++;
- if (parser->index > sizeof(KEEP_ALIVE)-1
- || c != KEEP_ALIVE[parser->index]) {
- h_state = h_matching_connection_token;
- } else if (parser->index == sizeof(KEEP_ALIVE)-2) {
- h_state = h_connection_keep_alive;
- }
- break;
-
- /* looking for 'Connection: close' */
- case h_matching_connection_close:
- parser->index++;
- if (parser->index > sizeof(CLOSE)-1 || c != CLOSE[parser->index]) {
- h_state = h_matching_connection_token;
- } else if (parser->index == sizeof(CLOSE)-2) {
- h_state = h_connection_close;
- }
- break;
-
- /* looking for 'Connection: upgrade' */
- case h_matching_connection_upgrade:
- parser->index++;
- if (parser->index > sizeof(UPGRADE) - 1 ||
- c != UPGRADE[parser->index]) {
- h_state = h_matching_connection_token;
- } else if (parser->index == sizeof(UPGRADE)-2) {
- h_state = h_connection_upgrade;
- }
- break;
-
- case h_matching_connection_token:
- if (ch == ',') {
- h_state = h_matching_connection_token_start;
- parser->index = 0;
- }
- break;
-
- case h_transfer_encoding_chunked:
- if (ch != ' ') h_state = h_general;
- break;
-
- case h_connection_keep_alive:
- case h_connection_close:
- case h_connection_upgrade:
- if (ch == ',') {
- if (h_state == h_connection_keep_alive) {
- parser->flags |= F_CONNECTION_KEEP_ALIVE;
- } else if (h_state == h_connection_close) {
- parser->flags |= F_CONNECTION_CLOSE;
- } else if (h_state == h_connection_upgrade) {
- parser->flags |= F_CONNECTION_UPGRADE;
- }
- h_state = h_matching_connection_token_start;
- parser->index = 0;
- } else if (ch != ' ') {
- h_state = h_matching_connection_token;
- }
- break;
-
- default:
- UPDATE_STATE(s_header_value);
- h_state = h_general;
- break;
- }
- }
- parser->header_state = h_state;
-
- COUNT_HEADER_SIZE(p - start);
-
- if (p == data + len)
- --p;
- break;
- }
-
- case s_header_almost_done:
- {
- if (UNLIKELY(ch != LF)) {
- SET_ERRNO(HPE_LF_EXPECTED);
- goto error;
- }
-
- UPDATE_STATE(s_header_value_lws);
- break;
- }
-
- case s_header_value_lws:
- {
- if (ch == ' ' || ch == '\t') {
- UPDATE_STATE(s_header_value_start);
- REEXECUTE();
- }
-
- /* finished the header */
- switch (parser->header_state) {
- case h_connection_keep_alive:
- parser->flags |= F_CONNECTION_KEEP_ALIVE;
- break;
- case h_connection_close:
- parser->flags |= F_CONNECTION_CLOSE;
- break;
- case h_transfer_encoding_chunked:
- parser->flags |= F_CHUNKED;
- break;
- case h_connection_upgrade:
- parser->flags |= F_CONNECTION_UPGRADE;
- break;
- default:
- break;
- }
-
- UPDATE_STATE(s_header_field_start);
- REEXECUTE();
- }
-
- case s_header_value_discard_ws_almost_done:
- {
- STRICT_CHECK(ch != LF);
- UPDATE_STATE(s_header_value_discard_lws);
- break;
- }
-
- case s_header_value_discard_lws:
- {
- if (ch == ' ' || ch == '\t') {
- UPDATE_STATE(s_header_value_discard_ws);
- break;
- } else {
- switch (parser->header_state) {
- case h_connection_keep_alive:
- parser->flags |= F_CONNECTION_KEEP_ALIVE;
- break;
- case h_connection_close:
- parser->flags |= F_CONNECTION_CLOSE;
- break;
- case h_connection_upgrade:
- parser->flags |= F_CONNECTION_UPGRADE;
- break;
- case h_transfer_encoding_chunked:
- parser->flags |= F_CHUNKED;
- break;
- default:
- break;
- }
-
- /* header value was empty */
- MARK(header_value);
- UPDATE_STATE(s_header_field_start);
- CALLBACK_DATA_NOADVANCE(header_value);
- REEXECUTE();
- }
- }
-
- case s_headers_almost_done:
- {
- STRICT_CHECK(ch != LF);
-
- if (parser->flags & F_TRAILING) {
- /* End of a chunked request */
- UPDATE_STATE(s_message_done);
- CALLBACK_NOTIFY_NOADVANCE(chunk_complete);
- REEXECUTE();
- }
-
- /* Cannot use chunked encoding and a content-length header together
- per the HTTP specification. */
- if ((parser->flags & F_CHUNKED) &&
- (parser->flags & F_CONTENTLENGTH)) {
- SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
- goto error;
- }
-
- UPDATE_STATE(s_headers_done);
-
- /* Set this here so that on_headers_complete() callbacks can see it */
- parser->upgrade =
- ((parser->flags & (F_UPGRADE | F_CONNECTION_UPGRADE)) ==
- (F_UPGRADE | F_CONNECTION_UPGRADE) ||
- parser->method == HTTP_CONNECT);
-
- /* Here we call the headers_complete callback. This is somewhat
- * different than other callbacks because if the user returns 1, we
- * will interpret that as saying that this message has no body. This
- * is needed for the annoying case of recieving a response to a HEAD
- * request.
- *
- * We'd like to use CALLBACK_NOTIFY_NOADVANCE() here but we cannot, so
- * we have to simulate it by handling a change in errno below.
- */
- if (settings->on_headers_complete) {
- switch (settings->on_headers_complete(parser)) {
- case 0:
- break;
-
- case 2:
- parser->upgrade = 1;
-
- case 1:
- parser->flags |= F_SKIPBODY;
- break;
-
- default:
- SET_ERRNO(HPE_CB_headers_complete);
- RETURN(p - data); /* Error */
- }
- }
-
- if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
- RETURN(p - data);
- }
-
- REEXECUTE();
- }
-
- case s_headers_done:
- {
- int hasBody;
- STRICT_CHECK(ch != LF);
-
- parser->nread = 0;
-
- hasBody = parser->flags & F_CHUNKED ||
- (parser->content_length > 0 && parser->content_length != ULLONG_MAX);
- if (parser->upgrade && (parser->method == HTTP_CONNECT ||
- (parser->flags & F_SKIPBODY) || !hasBody)) {
- /* Exit, the rest of the message is in a different protocol. */
- UPDATE_STATE(NEW_MESSAGE());
- CALLBACK_NOTIFY(message_complete);
- RETURN((p - data) + 1);
- }
-
- if (parser->flags & F_SKIPBODY) {
- UPDATE_STATE(NEW_MESSAGE());
- CALLBACK_NOTIFY(message_complete);
- } else if (parser->flags & F_CHUNKED) {
- /* chunked encoding - ignore Content-Length header */
- UPDATE_STATE(s_chunk_size_start);
- } else {
- if (parser->content_length == 0) {
- /* Content-Length header given but zero: Content-Length: 0\r\n */
- UPDATE_STATE(NEW_MESSAGE());
- CALLBACK_NOTIFY(message_complete);
- } else if (parser->content_length != ULLONG_MAX) {
- /* Content-Length header given and non-zero */
- UPDATE_STATE(s_body_identity);
- } else {
- if (!http_message_needs_eof(parser)) {
- /* Assume content-length 0 - read the next */
- UPDATE_STATE(NEW_MESSAGE());
- CALLBACK_NOTIFY(message_complete);
- } else {
- /* Read body until EOF */
- UPDATE_STATE(s_body_identity_eof);
- }
- }
- }
-
- break;
- }
-
- case s_body_identity:
- {
- uint64_t to_read = MIN(parser->content_length,
- (uint64_t) ((data + len) - p));
-
- assert(parser->content_length != 0
- && parser->content_length != ULLONG_MAX);
-
- /* The difference between advancing content_length and p is because
- * the latter will automaticaly advance on the next loop iteration.
- * Further, if content_length ends up at 0, we want to see the last
- * byte again for our message complete callback.
- */
- MARK(body);
- parser->content_length -= to_read;
- p += to_read - 1;
-
- if (parser->content_length == 0) {
- UPDATE_STATE(s_message_done);
-
- /* Mimic CALLBACK_DATA_NOADVANCE() but with one extra byte.
- *
- * The alternative to doing this is to wait for the next byte to
- * trigger the data callback, just as in every other case. The
- * problem with this is that this makes it difficult for the test
- * harness to distinguish between complete-on-EOF and
- * complete-on-length. It's not clear that this distinction is
- * important for applications, but let's keep it for now.
- */
- CALLBACK_DATA_(body, p - body_mark + 1, p - data);
- REEXECUTE();
- }
-
- break;
- }
-
- /* read until EOF */
- case s_body_identity_eof:
- MARK(body);
- p = data + len - 1;
-
- break;
-
- case s_message_done:
- UPDATE_STATE(NEW_MESSAGE());
- CALLBACK_NOTIFY(message_complete);
- if (parser->upgrade) {
- /* Exit, the rest of the message is in a different protocol. */
- RETURN((p - data) + 1);
- }
- break;
-
- case s_chunk_size_start:
- {
- assert(parser->nread == 1);
- assert(parser->flags & F_CHUNKED);
-
- unhex_val = unhex[(unsigned char)ch];
- if (UNLIKELY(unhex_val == -1)) {
- SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
- goto error;
- }
-
- parser->content_length = unhex_val;
- UPDATE_STATE(s_chunk_size);
- break;
- }
-
- case s_chunk_size:
- {
- uint64_t t;
-
- assert(parser->flags & F_CHUNKED);
-
- if (ch == CR) {
- UPDATE_STATE(s_chunk_size_almost_done);
- break;
- }
-
- unhex_val = unhex[(unsigned char)ch];
-
- if (unhex_val == -1) {
- if (ch == ';' || ch == ' ') {
- UPDATE_STATE(s_chunk_parameters);
- break;
- }
-
- SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
- goto error;
- }
-
- t = parser->content_length;
- t *= 16;
- t += unhex_val;
-
- /* Overflow? Test against a conservative limit for simplicity. */
- if (UNLIKELY((ULLONG_MAX - 16) / 16 < parser->content_length)) {
- SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
- goto error;
- }
-
- parser->content_length = t;
- break;
- }
-
- case s_chunk_parameters:
- {
- assert(parser->flags & F_CHUNKED);
- /* just ignore this shit. TODO check for overflow */
- if (ch == CR) {
- UPDATE_STATE(s_chunk_size_almost_done);
- break;
- }
- break;
- }
-
- case s_chunk_size_almost_done:
- {
- assert(parser->flags & F_CHUNKED);
- STRICT_CHECK(ch != LF);
-
- parser->nread = 0;
-
- if (parser->content_length == 0) {
- parser->flags |= F_TRAILING;
- UPDATE_STATE(s_header_field_start);
- } else {
- UPDATE_STATE(s_chunk_data);
- }
- CALLBACK_NOTIFY(chunk_header);
- break;
- }
-
- case s_chunk_data:
- {
- uint64_t to_read = MIN(parser->content_length,
- (uint64_t) ((data + len) - p));
-
- assert(parser->flags & F_CHUNKED);
- assert(parser->content_length != 0
- && parser->content_length != ULLONG_MAX);
-
- /* See the explanation in s_body_identity for why the content
- * length and data pointers are managed this way.
- */
- MARK(body);
- parser->content_length -= to_read;
- p += to_read - 1;
-
- if (parser->content_length == 0) {
- UPDATE_STATE(s_chunk_data_almost_done);
- }
-
- break;
- }
-
- case s_chunk_data_almost_done:
- assert(parser->flags & F_CHUNKED);
- assert(parser->content_length == 0);
- STRICT_CHECK(ch != CR);
- UPDATE_STATE(s_chunk_data_done);
- CALLBACK_DATA(body);
- break;
-
- case s_chunk_data_done:
- assert(parser->flags & F_CHUNKED);
- STRICT_CHECK(ch != LF);
- parser->nread = 0;
- UPDATE_STATE(s_chunk_size_start);
- CALLBACK_NOTIFY(chunk_complete);
- break;
-
- default:
- assert(0 && "unhandled state");
- SET_ERRNO(HPE_INVALID_INTERNAL_STATE);
- goto error;
- }
- }
-
- /* Run callbacks for any marks that we have leftover after we ran our of
- * bytes. There should be at most one of these set, so it's OK to invoke
- * them in series (unset marks will not result in callbacks).
- *
- * We use the NOADVANCE() variety of callbacks here because 'p' has already
- * overflowed 'data' and this allows us to correct for the off-by-one that
- * we'd otherwise have (since CALLBACK_DATA() is meant to be run with a 'p'
- * value that's in-bounds).
- */
-
- assert(((header_field_mark ? 1 : 0) +
- (header_value_mark ? 1 : 0) +
- (url_mark ? 1 : 0) +
- (body_mark ? 1 : 0) +
- (status_mark ? 1 : 0)) <= 1);
-
- CALLBACK_DATA_NOADVANCE(header_field);
- CALLBACK_DATA_NOADVANCE(header_value);
- CALLBACK_DATA_NOADVANCE(url);
- CALLBACK_DATA_NOADVANCE(body);
- CALLBACK_DATA_NOADVANCE(status);
-
- RETURN(len);
-
-error:
- if (HTTP_PARSER_ERRNO(parser) == HPE_OK) {
- SET_ERRNO(HPE_UNKNOWN);
- }
-
- RETURN(p - data);
-}
-
-
-/* Does the parser need to see an EOF to find the end of the message? */
-int
-http_message_needs_eof (const http_parser *parser)
-{
- if (parser->type == HTTP_REQUEST) {
- return 0;
- }
-
- /* See RFC 2616 section 4.4 */
- if (parser->status_code / 100 == 1 || /* 1xx e.g. Continue */
- parser->status_code == 204 || /* No Content */
- parser->status_code == 304 || /* Not Modified */
- parser->flags & F_SKIPBODY) { /* response to a HEAD request */
- return 0;
- }
-
- if ((parser->flags & F_CHUNKED) || parser->content_length != ULLONG_MAX) {
- return 0;
- }
-
- return 1;
-}
-
-
-int
-http_should_keep_alive (const http_parser *parser)
-{
- if (parser->http_major > 0 && parser->http_minor > 0) {
- /* HTTP/1.1 */
- if (parser->flags & F_CONNECTION_CLOSE) {
- return 0;
- }
- } else {
- /* HTTP/1.0 or earlier */
- if (!(parser->flags & F_CONNECTION_KEEP_ALIVE)) {
- return 0;
- }
- }
-
- return !http_message_needs_eof(parser);
-}
-
-
-const char *
-http_method_str (enum http_method m)
-{
- return ELEM_AT(method_strings, m, "<unknown>");
-}
-
-
-void
-http_parser_init (http_parser *parser, enum http_parser_type t)
-{
- void *data = parser->data; /* preserve application data */
- memset(parser, 0, sizeof(*parser));
- parser->data = data;
- parser->type = t;
- parser->state = (t == HTTP_REQUEST ? s_start_req : (t == HTTP_RESPONSE ? s_start_res : s_start_req_or_res));
- parser->http_errno = HPE_OK;
-}
-
-void
-http_parser_settings_init(http_parser_settings *settings)
-{
- memset(settings, 0, sizeof(*settings));
-}
-
-const char *
-http_errno_name(enum http_errno err) {
- assert(((uint32_t) err) < ARRAY_SIZE(http_strerror_tab));
- return http_strerror_tab[err].name;
-}
-
-const char *
-http_errno_description(enum http_errno err) {
- assert(((uint32_t) err) < ARRAY_SIZE(http_strerror_tab));
- return http_strerror_tab[err].description;
-}
-
static enum http_host_state
http_parse_host_char(enum http_host_state s, const char ch) {
switch(s) {
@@ -2443,25 +574,6 @@ http_parser_parse_url(const char *buf, uint32_t buflen, int is_connect,
return 0;
}
-void
-http_parser_pause(http_parser *parser, int paused) {
- /* Users should only be pausing/unpausing a parser that is not in an error
- * state. In non-debug builds, there's not much that we can do about this
- * other than ignore it.
- */
- if (HTTP_PARSER_ERRNO(parser) == HPE_OK ||
- HTTP_PARSER_ERRNO(parser) == HPE_PAUSED) {
- SET_ERRNO((paused) ? HPE_PAUSED : HPE_OK);
- } else {
- assert(0 && "Attempting to pause parser in error state");
- }
-}
-
-int
-http_body_is_final(const struct http_parser *parser) {
- return parser->state == s_message_done;
-}
-
unsigned long
http_parser_version(void) {
return HTTP_PARSER_VERSION_MAJOR * 0x10000 |
diff --git a/src/utility/http_parser.h b/src/utility/http_parser.h
index 472bf54..85a5238 100644
--- a/src/utility/http_parser.h
+++ b/src/utility/http_parser.h
@@ -30,21 +30,7 @@ extern "C" {
#define HTTP_PARSER_VERSION_MINOR 7
#define HTTP_PARSER_VERSION_PATCH 1
-#if defined(_WIN32) && !defined(__MINGW32__) && \
- (!defined(_MSC_VER) || _MSC_VER<1600) && !defined(__WINE__)
-#include <BaseTsd.h>
-#include <stddef.h>
-typedef __int8 int8_t;
-typedef unsigned __int8 uint8_t;
-typedef __int16 int16_t;
-typedef unsigned __int16 uint16_t;
-typedef __int32 int32_t;
-typedef unsigned __int32 uint32_t;
-typedef __int64 int64_t;
-typedef unsigned __int64 uint64_t;
-#else
#include <stdint.h>
-#endif
/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
* faster
@@ -53,289 +39,6 @@ typedef unsigned __int64 uint64_t;
# define HTTP_PARSER_STRICT 1
#endif
-/* Maximium header size allowed. If the macro is not defined
- * before including this header then the default is used. To
- * change the maximum header size, define the macro in the build
- * environment (e.g. -DHTTP_MAX_HEADER_SIZE=<value>). To remove
- * the effective limit on the size of the header, define the macro
- * to a very large number (e.g. -DHTTP_MAX_HEADER_SIZE=0x7fffffff)
- */
-#ifndef HTTP_MAX_HEADER_SIZE
-# define HTTP_MAX_HEADER_SIZE (80*1024)
-#endif
-
-typedef struct http_parser http_parser;
-typedef struct http_parser_settings http_parser_settings;
-
-
-/* Callbacks should return non-zero to indicate an error. The parser will
- * then halt execution.
- *
- * The one exception is on_headers_complete. In a HTTP_RESPONSE parser
- * returning '1' from on_headers_complete will tell the parser that it
- * should not expect a body. This is used when receiving a response to a
- * HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
- * chunked' headers that indicate the presence of a body.
- *
- * Returning `2` from on_headers_complete will tell parser that it should not
- * expect neither a body nor any futher responses on this connection. This is
- * useful for handling responses to a CONNECT request which may not contain
- * `Upgrade` or `Connection: upgrade` headers.
- *
- * http_data_cb does not return data chunks. It will be called arbitrarily
- * many times for each string. E.G. you might get 10 callbacks for "on_url"
- * each providing just a few characters more data.
- */
-typedef int (*http_data_cb) (http_parser*, const char *at, uint32_t length);
-typedef int (*http_cb) (http_parser*);
-
-
-/* Status Codes */
-#define HTTP_STATUS_MAP(XX) \
- XX(100, CONTINUE, Continue) \
- XX(101, SWITCHING_PROTOCOLS, Switching Protocols) \
- XX(102, PROCESSING, Processing) \
- XX(200, OK, OK) \
- XX(201, CREATED, Created) \
- XX(202, ACCEPTED, Accepted) \
- XX(203, NON_AUTHORITATIVE_INFORMATION, Non-Authoritative Information) \
- XX(204, NO_CONTENT, No Content) \
- XX(205, RESET_CONTENT, Reset Content) \
- XX(206, PARTIAL_CONTENT, Partial Content) \
- XX(207, MULTI_STATUS, Multi-Status) \
- XX(208, ALREADY_REPORTED, Already Reported) \
- XX(226, IM_USED, IM Used) \
- XX(300, MULTIPLE_CHOICES, Multiple Choices) \
- XX(301, MOVED_PERMANENTLY, Moved Permanently) \
- XX(302, FOUND, Found) \
- XX(303, SEE_OTHER, See Other) \
- XX(304, NOT_MODIFIED, Not Modified) \
- XX(305, USE_PROXY, Use Proxy) \
- XX(307, TEMPORARY_REDIRECT, Temporary Redirect) \
- XX(308, PERMANENT_REDIRECT, Permanent Redirect) \
- XX(400, BAD_REQUEST, Bad Request) \
- XX(401, UNAUTHORIZED, Unauthorized) \
- XX(402, PAYMENT_REQUIRED, Payment Required) \
- XX(403, FORBIDDEN, Forbidden) \
- XX(404, NOT_FOUND, Not Found) \
- XX(405, METHOD_NOT_ALLOWED, Method Not Allowed) \
- XX(406, NOT_ACCEPTABLE, Not Acceptable) \
- XX(407, PROXY_AUTHENTICATION_REQUIRED, Proxy Authentication Required) \
- XX(408, REQUEST_TIMEOUT, Request Timeout) \
- XX(409, CONFLICT, Conflict) \
- XX(410, GONE, Gone) \
- XX(411, LENGTH_REQUIRED, Length Required) \
- XX(412, PRECONDITION_FAILED, Precondition Failed) \
- XX(413, PAYLOAD_TOO_LARGE, Payload Too Large) \
- XX(414, URI_TOO_LONG, URI Too Long) \
- XX(415, UNSUPPORTED_MEDIA_TYPE, Unsupported Media Type) \
- XX(416, RANGE_NOT_SATISFIABLE, Range Not Satisfiable) \
- XX(417, EXPECTATION_FAILED, Expectation Failed) \
- XX(421, MISDIRECTED_REQUEST, Misdirected Request) \
- XX(422, UNPROCESSABLE_ENTITY, Unprocessable Entity) \
- XX(423, LOCKED, Locked) \
- XX(424, FAILED_DEPENDENCY, Failed Dependency) \
- XX(426, UPGRADE_REQUIRED, Upgrade Required) \
- XX(428, PRECONDITION_REQUIRED, Precondition Required) \
- XX(429, TOO_MANY_REQUESTS, Too Many Requests) \
- XX(431, REQUEST_HEADER_FIELDS_TOO_LARGE, Request Header Fields Too Large) \
- XX(451, UNAVAILABLE_FOR_LEGAL_REASONS, Unavailable For Legal Reasons) \
- XX(500, INTERNAL_SERVER_ERROR, Internal Server Error) \
- XX(501, NOT_IMPLEMENTED, Not Implemented) \
- XX(502, BAD_GATEWAY, Bad Gateway) \
- XX(503, SERVICE_UNAVAILABLE, Service Unavailable) \
- XX(504, GATEWAY_TIMEOUT, Gateway Timeout) \
- XX(505, HTTP_VERSION_NOT_SUPPORTED, HTTP Version Not Supported) \
- XX(506, VARIANT_ALSO_NEGOTIATES, Variant Also Negotiates) \
- XX(507, INSUFFICIENT_STORAGE, Insufficient Storage) \
- XX(508, LOOP_DETECTED, Loop Detected) \
- XX(510, NOT_EXTENDED, Not Extended) \
- XX(511, NETWORK_AUTHENTICATION_REQUIRED, Network Authentication Required) \
-
-enum http_status
- {
-#define XX(num, name, string) HTTP_STATUS_##name = num,
- HTTP_STATUS_MAP(XX)
-#undef XX
- };
-
-
-/* Request Methods */
-#define HTTP_METHOD_MAP(XX) \
- XX(0, DELETE, DELETE) \
- XX(1, GET, GET) \
- XX(2, HEAD, HEAD) \
- XX(3, POST, POST) \
- XX(4, PUT, PUT) \
- /* pathological */ \
- XX(5, CONNECT, CONNECT) \
- XX(6, OPTIONS, OPTIONS) \
- XX(7, TRACE, TRACE) \
- /* WebDAV */ \
- XX(8, COPY, COPY) \
- XX(9, LOCK, LOCK) \
- XX(10, MKCOL, MKCOL) \
- XX(11, MOVE, MOVE) \
- XX(12, PROPFIND, PROPFIND) \
- XX(13, PROPPATCH, PROPPATCH) \
- XX(14, SEARCH, SEARCH) \
- XX(15, UNLOCK, UNLOCK) \
- XX(16, BIND, BIND) \
- XX(17, REBIND, REBIND) \
- XX(18, UNBIND, UNBIND) \
- XX(19, ACL, ACL) \
- /* subversion */ \
- XX(20, REPORT, REPORT) \
- XX(21, MKACTIVITY, MKACTIVITY) \
- XX(22, CHECKOUT, CHECKOUT) \
- XX(23, MERGE, MERGE) \
- /* upnp */ \
- XX(24, MSEARCH, M-SEARCH) \
- XX(25, NOTIFY, NOTIFY) \
- XX(26, SUBSCRIBE, SUBSCRIBE) \
- XX(27, UNSUBSCRIBE, UNSUBSCRIBE) \
- /* RFC-5789 */ \
- XX(28, PATCH, PATCH) \
- XX(29, PURGE, PURGE) \
- /* CalDAV */ \
- XX(30, MKCALENDAR, MKCALENDAR) \
- /* RFC-2068, section 19.6.1.2 */ \
- XX(31, LINK, LINK) \
- XX(32, UNLINK, UNLINK) \
-
-enum http_method
- {
-#define XX(num, name, string) HTTP_##name = num,
- HTTP_METHOD_MAP(XX)
-#undef XX
- };
-
-
-enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
-
-
-/* Flag values for http_parser.flags field */
-enum flags
- { F_CHUNKED = 1 << 0
- , F_CONNECTION_KEEP_ALIVE = 1 << 1
- , F_CONNECTION_CLOSE = 1 << 2
- , F_CONNECTION_UPGRADE = 1 << 3
- , F_TRAILING = 1 << 4
- , F_UPGRADE = 1 << 5
- , F_SKIPBODY = 1 << 6
- , F_CONTENTLENGTH = 1 << 7
- };
-
-
-/* Map for errno-related constants
- *
- * The provided argument should be a macro that takes 2 arguments.
- */
-#define HTTP_ERRNO_MAP(XX) \
- /* No error */ \
- XX(OK, "success") \
- \
- /* Callback-related errors */ \
- XX(CB_message_begin, "the on_message_begin callback failed") \
- XX(CB_url, "the on_url callback failed") \
- XX(CB_header_field, "the on_header_field callback failed") \
- XX(CB_header_value, "the on_header_value callback failed") \
- XX(CB_headers_complete, "the on_headers_complete callback failed") \
- XX(CB_body, "the on_body callback failed") \
- XX(CB_message_complete, "the on_message_complete callback failed") \
- XX(CB_status, "the on_status callback failed") \
- XX(CB_chunk_header, "the on_chunk_header callback failed") \
- XX(CB_chunk_complete, "the on_chunk_complete callback failed") \
- \
- /* Parsing-related errors */ \
- XX(INVALID_EOF_STATE, "stream ended at an unexpected time") \
- XX(HEADER_OVERFLOW, \
- "too many header bytes seen; overflow detected") \
- XX(CLOSED_CONNECTION, \
- "data received after completed connection: close message") \
- XX(INVALID_VERSION, "invalid HTTP version") \
- XX(INVALID_STATUS, "invalid HTTP status code") \
- XX(INVALID_METHOD, "invalid HTTP method") \
- XX(INVALID_URL, "invalid URL") \
- XX(INVALID_HOST, "invalid host") \
- XX(INVALID_PORT, "invalid port") \
- XX(INVALID_PATH, "invalid path") \
- XX(INVALID_QUERY_STRING, "invalid query string") \
- XX(INVALID_FRAGMENT, "invalid fragment") \
- XX(LF_EXPECTED, "LF character expected") \
- XX(INVALID_HEADER_TOKEN, "invalid character in header") \
- XX(INVALID_CONTENT_LENGTH, \
- "invalid character in content-length header") \
- XX(UNEXPECTED_CONTENT_LENGTH, \
- "unexpected content-length header") \
- XX(INVALID_CHUNK_SIZE, \
- "invalid character in chunk size header") \
- XX(INVALID_CONSTANT, "invalid constant string") \
- XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
- XX(STRICT, "strict mode assertion failed") \
- XX(PAUSED, "parser is paused") \
- XX(UNKNOWN, "an unknown error occurred")
-
-
-/* Define HPE_* values for each errno value above */
-#define HTTP_ERRNO_GEN(n, s) HPE_##n,
-enum http_errno {
- HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
-};
-#undef HTTP_ERRNO_GEN
-
-
-/* Get an http_errno value from an http_parser */
-#define HTTP_PARSER_ERRNO(p) ((enum http_errno) (p)->http_errno)
-
-
-struct http_parser {
- /** PRIVATE **/
- unsigned int type : 2; /* enum http_parser_type */
- unsigned int flags : 8; /* F_* values from 'flags' enum; semi-public */
- unsigned int state : 7; /* enum state from http_parser.c */
- unsigned int header_state : 7; /* enum header_state from http_parser.c */
- unsigned int index : 7; /* index into current matcher */
- unsigned int lenient_http_headers : 1;
-
- uint32_t nread; /* # bytes read in various scenarios */
- uint64_t content_length; /* # bytes in body (0 if no Content-Length header) */
-
- /** READ-ONLY **/
- unsigned short http_major;
- unsigned short http_minor;
- unsigned int status_code : 16; /* responses only */
- unsigned int method : 8; /* requests only */
- unsigned int http_errno : 7;
-
- /* 1 = Upgrade header was present and the parser has exited because of that.
- * 0 = No upgrade header present.
- * Should be checked when http_parser_execute() returns in addition to
- * error checking.
- */
- unsigned int upgrade : 1;
-
- /** PUBLIC **/
- void *data; /* A pointer to get hook to the "connection" or "socket" object */
-};
-
-
-struct http_parser_settings {
- http_cb on_message_begin;
- http_data_cb on_url;
- http_data_cb on_status;
- http_data_cb on_header_field;
- http_data_cb on_header_value;
- http_cb on_headers_complete;
- http_data_cb on_body;
- http_cb on_message_complete;
- /* When on_chunk_header is called, the current chunk length is stored
- * in parser->content_length.
- */
- http_cb on_chunk_header;
- http_cb on_chunk_complete;
-};
-
enum http_parser_url_fields
{ UF_SCHEMA = 0
@@ -379,39 +82,6 @@ struct http_parser_url {
*/
unsigned long http_parser_version(void);
-void http_parser_init(http_parser *parser, enum http_parser_type type);
-
-
-/* Initialize http_parser_settings members to 0
- */
-void http_parser_settings_init(http_parser_settings *settings);
-
-
-/* Executes the parser. Returns number of parsed bytes. Sets
- * `parser->http_errno` on error. */
-uint32_t http_parser_execute(http_parser *parser,
- const http_parser_settings *settings,
- const char *data,
- uint32_t len);
-
-
-/* If http_should_keep_alive() in the on_headers_complete or
- * on_message_complete callback returns 0, then this should be
- * the last message on the connection.
- * If you are the server, respond with the "Connection: close" header.
- * If you are the client, close the connection.
- */
-int http_should_keep_alive(const http_parser *parser);
-
-/* Returns a string version of the HTTP method. */
-const char *http_method_str(enum http_method m);
-
-/* Return a string name of the given error */
-const char *http_errno_name(enum http_errno err);
-
-/* Return a string description of the given error */
-const char *http_errno_description(enum http_errno err);
-
/* Initialize all http_parser_url members to 0 */
void http_parser_url_init(struct http_parser_url *u);
@@ -420,12 +90,6 @@ int http_parser_parse_url(const char *buf, uint32_t buflen,
int is_connect,
struct http_parser_url *u);
-/* Pause or un-pause the parser; a nonzero value pauses */
-void http_parser_pause(http_parser *parser, int paused);
-
-/* Checks if this is the final chunk of the body. */
-int http_body_is_final(const http_parser *parser);
-
#ifdef __cplusplus
}
#endif
From e5db3b5880a63522db4708fc653920b79a694477 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 21 Feb 2024 15:32:21 +0100
Subject: [PATCH 3/9] imported wrapper class for url parsing
---
src/URLParser.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 94 insertions(+)
create mode 100644 src/URLParser.h
diff --git a/src/URLParser.h b/src/URLParser.h
new file mode 100644
index 0000000..eaac7e9
--- /dev/null
+++ b/src/URLParser.h
@@ -0,0 +1,94 @@
+/*
+ * PackageLicenseDeclared: Apache-2.0
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _MBED_HTTP_PARSED_URL_H_
+#define _MBED_HTTP_PARSED_URL_H_
+
+#include "utility/http_parser.h"
+
+class ParsedUrl {
+public:
+ ParsedUrl(const char* url) {
+ struct http_parser_url parsed_url;
+ http_parser_parse_url(url, strlen(url), false, &parsed_url);
+
+ for (size_t ix = 0; ix < UF_MAX; ix++) {
+ char* value;
+ if (parsed_url.field_set & (1 << ix)) {
+ value = (char*)calloc(parsed_url.field_data[ix].len + 1, 1);
+ memcpy(value, url + parsed_url.field_data[ix].off,
+ parsed_url.field_data[ix].len);
+ }
+ else {
+ value = (char*)calloc(1, 1);
+ }
+
+ switch ((http_parser_url_fields)ix) {
+ case UF_SCHEMA: _schema = value; break;
+ case UF_HOST: _host = value; break;
+ case UF_PATH: _path = value; break;
+ case UF_QUERY: _query = value; break;
+ case UF_USERINFO: _userinfo = value; break;
+ default:
+ // PORT is already parsed, FRAGMENT is not relevant for HTTP requests
+ free(value);
+ break;
+ }
+ }
+
+ _port = parsed_url.port;
+ if (!_port) {
+ if (strcmp(_schema, "https") == 0 || strcmp(_schema, "wss") == 0) {
+ _port = 443;
+ }
+ else {
+ _port = 80;
+ }
+ }
+
+ if (strcmp(_path, "") == 0) {
+ free(_path);
+ _path = (char*)calloc(2, 1);
+ _path[0] = '/';
+ }
+ }
+
+ ~ParsedUrl() {
+ if (_schema) free(_schema);
+ if (_host) free(_host);
+ if (_path) free(_path);
+ if (_query) free(_query);
+ if (_userinfo) free(_userinfo);
+ }
+
+ uint16_t port() const { return _port; }
+ char* schema() const { return _schema; }
+ char* host() const { return _host; }
+ char* path() const { return _path; }
+ char* query() const { return _query; }
+ char* userinfo() const { return _userinfo; }
+
+private:
+ uint16_t _port;
+ char* _schema;
+ char* _host;
+ char* _path;
+ char* _query;
+ char* _userinfo;
+};
+
+#endif // _MBED_HTTP_PARSED_URL_H_
From a1a79a59157f2c191229bf2729e038cfcf1bfe39 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 21 Feb 2024 16:25:42 +0100
Subject: [PATCH 4/9] added example for url parsing
---
examples/ParseURL/ParseURL.ino | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 examples/ParseURL/ParseURL.ino
diff --git a/examples/ParseURL/ParseURL.ino b/examples/ParseURL/ParseURL.ino
new file mode 100644
index 0000000..f69a2bc
--- /dev/null
+++ b/examples/ParseURL/ParseURL.ino
@@ -0,0 +1,29 @@
+#include "URLParser.h"
+
+void setup() {
+
+ Serial.begin(9600);
+
+ while(!Serial);
+
+ Serial.println("starting");
+
+ ParsedUrl url(
+ "https://www.google.com/search?q=arduino"
+ );
+
+ Serial.print("parsed url schema: \"");
+ Serial.print(url.schema());
+ Serial.print("\"\nparsed url host: \"");
+ Serial.print(url.host());
+ Serial.print("\"\nparsed url path: \"");
+ Serial.print(url.path());
+ Serial.print("\"\nparsed url query: \"");
+ Serial.print(url.query());
+ Serial.print("\"\nparsed url userinfo: \"");
+ Serial.print(url.userinfo());
+ Serial.println("\"");
+
+}
+
+void loop() { }
\ No newline at end of file
From 8d44059cd5bdeccb29726ec53c796c85501f5caf Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <4046444+andreagilardoni@users.noreply.github.com>
Date: Wed, 13 Mar 2024 10:48:08 +0100
Subject: [PATCH 5/9] Update examples/ParseURL/ParseURL.ino
Co-authored-by: per1234 <accounts@perglass.com>
---
examples/ParseURL/ParseURL.ino | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/examples/ParseURL/ParseURL.ino b/examples/ParseURL/ParseURL.ino
index f69a2bc..410ac85 100644
--- a/examples/ParseURL/ParseURL.ino
+++ b/examples/ParseURL/ParseURL.ino
@@ -12,15 +12,15 @@ void setup() {
"https://www.google.com/search?q=arduino"
);
- Serial.print("parsed url schema: \"");
+ Serial.print("parsed URL schema: \"");
Serial.print(url.schema());
- Serial.print("\"\nparsed url host: \"");
+ Serial.print("\"\nparsed URL host: \"");
Serial.print(url.host());
- Serial.print("\"\nparsed url path: \"");
+ Serial.print("\"\nparsed URL path: \"");
Serial.print(url.path());
- Serial.print("\"\nparsed url query: \"");
+ Serial.print("\"\nparsed URL query: \"");
Serial.print(url.query());
- Serial.print("\"\nparsed url userinfo: \"");
+ Serial.print("\"\nparsed URL userinfo: \"");
Serial.print(url.userinfo());
Serial.println("\"");
From dbe65d631e46e1f829d9aee8375614477a8b138e Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Mon, 4 Mar 2024 16:43:13 +0100
Subject: [PATCH 6/9] added include preprocessor for boards compatibility
---
src/URLParser.h | 14 ++++++++++++++
src/utility/http_parser.c | 9 +++++++++
2 files changed, 23 insertions(+)
diff --git a/src/URLParser.h b/src/URLParser.h
index eaac7e9..0424592 100644
--- a/src/URLParser.h
+++ b/src/URLParser.h
@@ -15,6 +15,18 @@
* limitations under the License.
*/
+/*
+ * The following class is defined in mbed libraries, in case of STM32H7 include the original library
+ */
+#if defined __has_include
+# if __has_include(<utility/http_parsed_url.h>)
+# include <utility/http_parsed_url.h>
+# else
+# define NO_HTTP_PARSED
+# endif
+#endif
+
+#ifdef NO_HTTP_PARSED
#ifndef _MBED_HTTP_PARSED_URL_H_
#define _MBED_HTTP_PARSED_URL_H_
@@ -92,3 +104,5 @@ class ParsedUrl {
};
#endif // _MBED_HTTP_PARSED_URL_H_
+#endif // NO_HTTP_PARSED
+#undef NO_HTTP_PARSED
\ No newline at end of file
diff --git a/src/utility/http_parser.c b/src/utility/http_parser.c
index f1be647..a572a4c 100644
--- a/src/utility/http_parser.c
+++ b/src/utility/http_parser.c
@@ -1,3 +1,10 @@
+#if defined __has_include
+# if ! __has_include(<utility/http_parser/http_parser.h>) && ! __has_include(<http_parser.h>)
+# define NO_HTTP_PARSER
+# endif
+#endif
+
+#ifdef NO_HTTP_PARSER
/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
*
* Additional changes are licensed under the same terms as NGINX and
@@ -580,3 +587,5 @@ http_parser_version(void) {
HTTP_PARSER_VERSION_MINOR * 0x00100 |
HTTP_PARSER_VERSION_PATCH * 0x00001;
}
+
+#endif // NO_HTTP_PARSER
\ No newline at end of file
From 734f5b58a9fc4920eebfa063466434ef4c7ed486 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 13 Mar 2024 10:43:48 +0100
Subject: [PATCH 7/9] fixing codespell ci for imported url lib
---
.codespellrc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/.codespellrc b/.codespellrc
index 101edae..2fcb936 100644
--- a/.codespellrc
+++ b/.codespellrc
@@ -4,4 +4,4 @@
ignore-words-list = ,
check-filenames =
check-hidden =
-skip = ./.git
+skip = ./.git,./src/utility
\ No newline at end of file
From 482e088f93c09a62a5aa56fbe946534a94344e69 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Thu, 14 Mar 2024 14:39:25 +0100
Subject: [PATCH 8/9] added README for imported library
---
src/utility/README.md | 5 +++++
1 file changed, 5 insertions(+)
create mode 100644 src/utility/README.md
diff --git a/src/utility/README.md b/src/utility/README.md
new file mode 100644
index 0000000..56f8c96
--- /dev/null
+++ b/src/utility/README.md
@@ -0,0 +1,5 @@
+# http_parser library
+
+This code is imported from: https://github.com/arduino/ArduinoCore-mbed/tree/4.1.1/libraries/SocketWrapper/src/utility/http_parser
+
+The code is shrinked in size by deleting all the unrelated code to url parse.
From 9ea6ace0d031396107d38cdb427ac01ae2b5c021 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Wed, 13 Mar 2024 13:29:03 +0100
Subject: [PATCH 9/9] moving http_parser from utility to utility/URLParser
---
.codespellrc | 2 +-
src/URLParser.h | 2 +-
src/utility/{ => URLParser}/LICENSE | 0
src/utility/{ => URLParser}/README.md | 0
src/utility/{ => URLParser}/http_parser.c | 0
src/utility/{ => URLParser}/http_parser.h | 0
6 files changed, 2 insertions(+), 2 deletions(-)
rename src/utility/{ => URLParser}/LICENSE (100%)
rename src/utility/{ => URLParser}/README.md (100%)
rename src/utility/{ => URLParser}/http_parser.c (100%)
rename src/utility/{ => URLParser}/http_parser.h (100%)
diff --git a/.codespellrc b/.codespellrc
index 2fcb936..c5233c0 100644
--- a/.codespellrc
+++ b/.codespellrc
@@ -4,4 +4,4 @@
ignore-words-list = ,
check-filenames =
check-hidden =
-skip = ./.git,./src/utility
\ No newline at end of file
+skip = ./.git,./src/utility/URLParser
diff --git a/src/URLParser.h b/src/URLParser.h
index 0424592..fd31e93 100644
--- a/src/URLParser.h
+++ b/src/URLParser.h
@@ -30,7 +30,7 @@
#ifndef _MBED_HTTP_PARSED_URL_H_
#define _MBED_HTTP_PARSED_URL_H_
-#include "utility/http_parser.h"
+#include "utility/URLParser/http_parser.h"
class ParsedUrl {
public:
diff --git a/src/utility/LICENSE b/src/utility/URLParser/LICENSE
similarity index 100%
rename from src/utility/LICENSE
rename to src/utility/URLParser/LICENSE
diff --git a/src/utility/README.md b/src/utility/URLParser/README.md
similarity index 100%
rename from src/utility/README.md
rename to src/utility/URLParser/README.md
diff --git a/src/utility/http_parser.c b/src/utility/URLParser/http_parser.c
similarity index 100%
rename from src/utility/http_parser.c
rename to src/utility/URLParser/http_parser.c
diff --git a/src/utility/http_parser.h b/src/utility/URLParser/http_parser.h
similarity index 100%
rename from src/utility/http_parser.h
rename to src/utility/URLParser/http_parser.h