| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // Copyright (c) 2024 Mohammad Nejati | ||
| 4 | // | ||
| 5 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 6 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 7 | // | ||
| 8 | // Official repository: https://github.com/cppalliance/http_proto | ||
| 9 | // | ||
| 10 | |||
| 11 | #ifndef BOOST_HTTP_PROTO_DETAIL_HEADER_HPP | ||
| 12 | #define BOOST_HTTP_PROTO_DETAIL_HEADER_HPP | ||
| 13 | |||
| 14 | #include <boost/http_proto/detail/config.hpp> | ||
| 15 | #include <boost/http_proto/error.hpp> | ||
| 16 | #include <boost/http_proto/field.hpp> | ||
| 17 | #include <boost/http_proto/metadata.hpp> | ||
| 18 | #include <boost/http_proto/method.hpp> | ||
| 19 | #include <boost/http_proto/status.hpp> | ||
| 20 | #include <boost/http_proto/version.hpp> | ||
| 21 | |||
| 22 | #include <boost/assert.hpp> | ||
| 23 | #include <boost/core/detail/string_view.hpp> | ||
| 24 | |||
| 25 | #include <cstdint> | ||
| 26 | |||
| 27 | namespace boost { | ||
| 28 | namespace http_proto { | ||
| 29 | |||
| 30 | class fields_base; | ||
| 31 | struct header_limits; | ||
| 32 | |||
| 33 | namespace detail { | ||
| 34 | |||
| 35 | enum kind : unsigned char | ||
| 36 | { | ||
| 37 | fields = 0, | ||
| 38 | request, | ||
| 39 | response, | ||
| 40 | }; | ||
| 41 | |||
| 42 | struct empty | ||
| 43 | { | ||
| 44 | kind param; | ||
| 45 | }; | ||
| 46 | |||
| 47 | struct header | ||
| 48 | { | ||
| 49 | // +------------+---------+------+------------+-----------------------------+ | ||
| 50 | // | start-line | headers | \r\n | free space | entry[count-1] ... entry[0] | | ||
| 51 | // +------------+---------+------+------------+-----------------------------+ | ||
| 52 | // ^ ^ ^ ^ | ||
| 53 | // buf buf+prefix buf+size buf+cap | ||
| 54 | |||
| 55 | #ifdef BOOST_HTTP_PROTO_TEST_LIMITS | ||
| 56 | using offset_type = std::uint8_t; | ||
| 57 | #else | ||
| 58 | using offset_type = std::uint32_t; | ||
| 59 | #endif | ||
| 60 | |||
| 61 | static constexpr | ||
| 62 | std::size_t max_offset = | ||
| 63 | std::numeric_limits< | ||
| 64 | offset_type>::max(); | ||
| 65 | |||
| 66 | static constexpr | ||
| 67 | field unknown_field = | ||
| 68 | static_cast<field>(0); | ||
| 69 | |||
| 70 | struct entry | ||
| 71 | { | ||
| 72 | offset_type np; // name pos | ||
| 73 | offset_type nn; // name size | ||
| 74 | offset_type vp; // value pos | ||
| 75 | offset_type vn; // value size | ||
| 76 | field id; | ||
| 77 | |||
| 78 | entry operator+( | ||
| 79 | std::size_t dv) const noexcept; | ||
| 80 | entry operator-( | ||
| 81 | std::size_t dv) const noexcept; | ||
| 82 | }; | ||
| 83 | |||
| 84 | struct table | ||
| 85 | { | ||
| 86 | explicit | ||
| 87 | 14621 | table( | |
| 88 | void* end) noexcept | ||
| 89 | 14621 | : p_(reinterpret_cast< | |
| 90 | entry*>(end)) | ||
| 91 | { | ||
| 92 | 14621 | } | |
| 93 | |||
| 94 | entry& | ||
| 95 | 14742 | operator[]( | |
| 96 | std::size_t i) const noexcept | ||
| 97 | { | ||
| 98 | 14742 | return p_[-1 * ( | |
| 99 | 14742 | static_cast< | |
| 100 | 14742 | long>(i) + 1)]; | |
| 101 | } | ||
| 102 | |||
| 103 | private: | ||
| 104 | entry* p_; | ||
| 105 | }; | ||
| 106 | |||
| 107 | struct fld_t | ||
| 108 | { | ||
| 109 | }; | ||
| 110 | |||
| 111 | struct req_t | ||
| 112 | { | ||
| 113 | offset_type method_len; | ||
| 114 | offset_type target_len; | ||
| 115 | http_proto::method method; | ||
| 116 | }; | ||
| 117 | |||
| 118 | struct res_t | ||
| 119 | { | ||
| 120 | unsigned short status_int; | ||
| 121 | http_proto::status status; | ||
| 122 | }; | ||
| 123 | |||
| 124 | //-------------------------------------------- | ||
| 125 | |||
| 126 | detail::kind kind; | ||
| 127 | char const* cbuf = nullptr; | ||
| 128 | char* buf = nullptr; | ||
| 129 | std::size_t cap = 0; | ||
| 130 | |||
| 131 | offset_type size = 0; | ||
| 132 | offset_type count = 0; | ||
| 133 | offset_type prefix = 0; | ||
| 134 | |||
| 135 | http_proto::version version = | ||
| 136 | http_proto::version::http_1_1; | ||
| 137 | metadata md; | ||
| 138 | |||
| 139 | union | ||
| 140 | { | ||
| 141 | fld_t fld; | ||
| 142 | req_t req; | ||
| 143 | res_t res; | ||
| 144 | }; | ||
| 145 | |||
| 146 | private: | ||
| 147 | struct fields_tag {}; | ||
| 148 | struct request_tag {}; | ||
| 149 | struct response_tag {}; | ||
| 150 | |||
| 151 | constexpr header(fields_tag) noexcept; | ||
| 152 | constexpr header(request_tag) noexcept; | ||
| 153 | constexpr header(response_tag) noexcept; | ||
| 154 | |||
| 155 | public: | ||
| 156 | // in fields_base.hpp | ||
| 157 | static header& | ||
| 158 | get(fields_base& f) noexcept; | ||
| 159 | |||
| 160 | BOOST_HTTP_PROTO_DECL | ||
| 161 | static header const* | ||
| 162 | get_default(detail::kind k) noexcept; | ||
| 163 | |||
| 164 | // called from parser | ||
| 165 | explicit header(empty) noexcept; | ||
| 166 | |||
| 167 | BOOST_HTTP_PROTO_DECL | ||
| 168 | header(detail::kind) noexcept; | ||
| 169 | |||
| 170 | BOOST_HTTP_PROTO_DECL | ||
| 171 | void swap(header&) noexcept; | ||
| 172 | |||
| 173 | BOOST_HTTP_PROTO_DECL | ||
| 174 | bool keep_alive() const noexcept; | ||
| 175 | |||
| 176 | static std::size_t bytes_needed( | ||
| 177 | std::size_t size, std::size_t count) noexcept; | ||
| 178 | static std::size_t table_space( | ||
| 179 | std::size_t count) noexcept; | ||
| 180 | |||
| 181 | std::size_t table_space() const noexcept; | ||
| 182 | |||
| 183 | table tab() const noexcept; | ||
| 184 | entry* tab_() const noexcept; | ||
| 185 | bool is_default() const noexcept; | ||
| 186 | std::size_t find(field) const noexcept; | ||
| 187 | std::size_t find(core::string_view) const noexcept; | ||
| 188 | void copy_table(void*, std::size_t) const noexcept; | ||
| 189 | void copy_table(void*) const noexcept; | ||
| 190 | void assign_to(header&) const noexcept; | ||
| 191 | |||
| 192 | // metadata | ||
| 193 | |||
| 194 | std::size_t maybe_count(field) const noexcept; | ||
| 195 | bool is_special(field) const noexcept; | ||
| 196 | void on_start_line(); | ||
| 197 | void on_insert(field, core::string_view); | ||
| 198 | void on_erase(field); | ||
| 199 | void on_insert_connection(core::string_view); | ||
| 200 | void on_insert_content_length(core::string_view); | ||
| 201 | void on_insert_expect(core::string_view); | ||
| 202 | void on_insert_transfer_encoding(core::string_view); | ||
| 203 | void on_insert_content_encoding(core::string_view); | ||
| 204 | void on_insert_upgrade(core::string_view); | ||
| 205 | void on_erase_connection(); | ||
| 206 | void on_erase_content_length(); | ||
| 207 | void on_erase_expect(); | ||
| 208 | void on_erase_transfer_encoding(); | ||
| 209 | void on_erase_content_encoding(); | ||
| 210 | void on_erase_upgrade(); | ||
| 211 | void on_erase_all(field); | ||
| 212 | void update_payload() noexcept; | ||
| 213 | |||
| 214 | // parsing | ||
| 215 | |||
| 216 | static std::size_t | ||
| 217 | count_crlf(core::string_view s) noexcept; | ||
| 218 | |||
| 219 | void parse( | ||
| 220 | std::size_t, | ||
| 221 | header_limits const&, | ||
| 222 | system::error_code&) noexcept; | ||
| 223 | }; | ||
| 224 | |||
| 225 | } // detail | ||
| 226 | } // http_proto | ||
| 227 | } // boost | ||
| 228 | |||
| 229 | #endif | ||
| 230 |