| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2021 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/http_proto | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_HTTP_PROTO_FIELDS_VIEW_BASE_HPP | ||
| 11 | #define BOOST_HTTP_PROTO_FIELDS_VIEW_BASE_HPP | ||
| 12 | |||
| 13 | #include <boost/http_proto/detail/config.hpp> | ||
| 14 | #include <boost/http_proto/detail/header.hpp> | ||
| 15 | #include <boost/url/grammar/recycled.hpp> | ||
| 16 | #include <boost/url/grammar/type_traits.hpp> | ||
| 17 | #include <boost/core/detail/string_view.hpp> | ||
| 18 | #include <iterator> | ||
| 19 | #include <memory> | ||
| 20 | #include <string> | ||
| 21 | |||
| 22 | namespace boost { | ||
| 23 | namespace http_proto { | ||
| 24 | |||
| 25 | /** A read-only, bidirectional range of HTTP fields | ||
| 26 | |||
| 27 | This is a mix-in used to add common | ||
| 28 | functionality to derived classes. | ||
| 29 | */ | ||
| 30 | class fields_view_base | ||
| 31 | { | ||
| 32 | detail::header const* ph_; | ||
| 33 | |||
| 34 | friend class fields; | ||
| 35 | friend class fields_base; | ||
| 36 | friend class fields_view; | ||
| 37 | friend class message_base; | ||
| 38 | friend class message_view_base; | ||
| 39 | friend class request; | ||
| 40 | friend class request_view; | ||
| 41 | friend class response; | ||
| 42 | friend class response_view; | ||
| 43 | friend class serializer; | ||
| 44 | |||
| 45 | explicit | ||
| 46 | 1055 | fields_view_base( | |
| 47 | detail::header const* ph) noexcept | ||
| 48 | 1055 | : ph_(ph) | |
| 49 | { | ||
| 50 | 1055 | } | |
| 51 | |||
| 52 | fields_view_base( | ||
| 53 | fields_view_base const&) = default; | ||
| 54 | fields_view_base& | ||
| 55 | operator=(fields_view_base const&) = default; | ||
| 56 | |||
| 57 | public: | ||
| 58 | //-------------------------------------------- | ||
| 59 | // | ||
| 60 | // Types | ||
| 61 | // | ||
| 62 | //-------------------------------------------- | ||
| 63 | |||
| 64 | /** A field | ||
| 65 | */ | ||
| 66 | /**@{*/ | ||
| 67 | struct reference | ||
| 68 | { | ||
| 69 | field const id; | ||
| 70 | core::string_view const name; | ||
| 71 | core::string_view const value; | ||
| 72 | |||
| 73 | #ifndef BOOST_HTTP_PROTO_DOCS | ||
| 74 | reference const* | ||
| 75 | 1861 | operator->() const noexcept | |
| 76 | { | ||
| 77 | 1861 | return this; | |
| 78 | } | ||
| 79 | #endif | ||
| 80 | }; | ||
| 81 | |||
| 82 | typedef reference const_reference; | ||
| 83 | /**@}*/ | ||
| 84 | |||
| 85 | /** A type which can represent a field as a value | ||
| 86 | |||
| 87 | This type allows for making a copy of | ||
| 88 | a field where ownership is retained | ||
| 89 | in the copy. | ||
| 90 | */ | ||
| 91 | struct value_type | ||
| 92 | { | ||
| 93 | field id; | ||
| 94 | std::string name; | ||
| 95 | std::string value; | ||
| 96 | |||
| 97 | BOOST_HTTP_PROTO_DECL | ||
| 98 | value_type( | ||
| 99 | reference const& other); | ||
| 100 | |||
| 101 | operator reference() const noexcept; | ||
| 102 | }; | ||
| 103 | |||
| 104 | /** An unsigned integer type | ||
| 105 | */ | ||
| 106 | using size_type = std::size_t; | ||
| 107 | |||
| 108 | /** A signed integer type | ||
| 109 | */ | ||
| 110 | using difference_type = | ||
| 111 | std::ptrdiff_t; | ||
| 112 | |||
| 113 | /** A bidirectional iterator to HTTP fields | ||
| 114 | */ | ||
| 115 | /**@{*/ | ||
| 116 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 117 | using iterator = __see_below__; | ||
| 118 | #else | ||
| 119 | class iterator; | ||
| 120 | #endif | ||
| 121 | |||
| 122 | using const_iterator = iterator; | ||
| 123 | /**@}*/ | ||
| 124 | |||
| 125 | /** A bidirectional reverse iterator to HTTP fields | ||
| 126 | */ | ||
| 127 | /**@{*/ | ||
| 128 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 129 | using reverse_iterator = __see_below__; | ||
| 130 | #else | ||
| 131 | class reverse_iterator; | ||
| 132 | #endif | ||
| 133 | |||
| 134 | using const_reverse_iterator = reverse_iterator; | ||
| 135 | /**@}*/ | ||
| 136 | |||
| 137 | /** A forward range of matching fields | ||
| 138 | |||
| 139 | Objects of this type are returned by | ||
| 140 | the function @ref find_all. | ||
| 141 | */ | ||
| 142 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 143 | using subrange = __see_below__; | ||
| 144 | #else | ||
| 145 | class subrange; | ||
| 146 | #endif | ||
| 147 | |||
| 148 | //-------------------------------------------- | ||
| 149 | // | ||
| 150 | // Observers | ||
| 151 | // | ||
| 152 | //-------------------------------------------- | ||
| 153 | |||
| 154 | /** Returns the largest possible serialized message | ||
| 155 | */ | ||
| 156 | static | ||
| 157 | constexpr | ||
| 158 | std::size_t | ||
| 159 | max_size() noexcept | ||
| 160 | { | ||
| 161 | return max_offset; | ||
| 162 | } | ||
| 163 | |||
| 164 | /** Return an iterator to the beginning | ||
| 165 | */ | ||
| 166 | iterator | ||
| 167 | begin() const noexcept; | ||
| 168 | |||
| 169 | /** Return an iterator to the end | ||
| 170 | */ | ||
| 171 | iterator | ||
| 172 | end() const noexcept; | ||
| 173 | |||
| 174 | /** Return a reverse iterator to the beginning | ||
| 175 | */ | ||
| 176 | reverse_iterator | ||
| 177 | rbegin() const noexcept; | ||
| 178 | |||
| 179 | /** Return a reverse iterator to the end | ||
| 180 | */ | ||
| 181 | reverse_iterator | ||
| 182 | rend() const noexcept; | ||
| 183 | |||
| 184 | //--- | ||
| 185 | |||
| 186 | /** Return a string representing the serialized data | ||
| 187 | */ | ||
| 188 | core::string_view | ||
| 189 | 610 | buffer() const noexcept | |
| 190 | { | ||
| 191 | 1220 | return core::string_view( | |
| 192 | 610 | ph_->cbuf, ph_->size); | |
| 193 | } | ||
| 194 | |||
| 195 | /** Returns the number of fields in the container | ||
| 196 | */ | ||
| 197 | std::size_t | ||
| 198 | 184 | size() const noexcept | |
| 199 | { | ||
| 200 | 184 | return ph_->count; | |
| 201 | } | ||
| 202 | |||
| 203 | /** Return true if a field exists | ||
| 204 | */ | ||
| 205 | BOOST_HTTP_PROTO_DECL | ||
| 206 | bool | ||
| 207 | exists(field id) const noexcept; | ||
| 208 | |||
| 209 | /** Return true if a field exists | ||
| 210 | */ | ||
| 211 | BOOST_HTTP_PROTO_DECL | ||
| 212 | bool | ||
| 213 | exists( | ||
| 214 | core::string_view name) const noexcept; | ||
| 215 | |||
| 216 | /** Return the number of matching fields | ||
| 217 | */ | ||
| 218 | BOOST_HTTP_PROTO_DECL | ||
| 219 | std::size_t | ||
| 220 | count(field id) const noexcept; | ||
| 221 | |||
| 222 | /** Return the number of matching fields | ||
| 223 | */ | ||
| 224 | BOOST_HTTP_PROTO_DECL | ||
| 225 | std::size_t | ||
| 226 | count( | ||
| 227 | core::string_view name) const noexcept; | ||
| 228 | |||
| 229 | /** Returns an iterator to the matching element if it exists | ||
| 230 | */ | ||
| 231 | BOOST_HTTP_PROTO_DECL | ||
| 232 | iterator | ||
| 233 | find(field id) const noexcept; | ||
| 234 | |||
| 235 | /** Returns an iterator to the matching element if it exists | ||
| 236 | |||
| 237 | If `name` refers to a known field, it is faster | ||
| 238 | to call @ref find with a field id instead of a | ||
| 239 | string. | ||
| 240 | */ | ||
| 241 | BOOST_HTTP_PROTO_DECL | ||
| 242 | iterator | ||
| 243 | find( | ||
| 244 | core::string_view name) const noexcept; | ||
| 245 | |||
| 246 | /** Returns an iterator to the matching element if it exists | ||
| 247 | */ | ||
| 248 | BOOST_HTTP_PROTO_DECL | ||
| 249 | iterator | ||
| 250 | find( | ||
| 251 | iterator from, | ||
| 252 | field id) const noexcept; | ||
| 253 | |||
| 254 | /** Returns an iterator to the matching element if it exists | ||
| 255 | */ | ||
| 256 | BOOST_HTTP_PROTO_DECL | ||
| 257 | iterator | ||
| 258 | find( | ||
| 259 | iterator from, | ||
| 260 | core::string_view name) const noexcept; | ||
| 261 | |||
| 262 | /** Returns an iterator to the matching element if it exists | ||
| 263 | */ | ||
| 264 | BOOST_HTTP_PROTO_DECL | ||
| 265 | iterator | ||
| 266 | find_last( | ||
| 267 | iterator before, | ||
| 268 | field id) const noexcept; | ||
| 269 | |||
| 270 | /** Returns an iterator to the matching element if it exists | ||
| 271 | */ | ||
| 272 | BOOST_HTTP_PROTO_DECL | ||
| 273 | iterator | ||
| 274 | find_last( | ||
| 275 | iterator before, | ||
| 276 | core::string_view name) const noexcept; | ||
| 277 | |||
| 278 | /** Return the value of a field | ||
| 279 | */ | ||
| 280 | BOOST_HTTP_PROTO_DECL | ||
| 281 | core::string_view | ||
| 282 | value_or( | ||
| 283 | field id, | ||
| 284 | core::string_view s) const noexcept; | ||
| 285 | |||
| 286 | /** Return the value of a field | ||
| 287 | */ | ||
| 288 | BOOST_HTTP_PROTO_DECL | ||
| 289 | core::string_view | ||
| 290 | value_or( | ||
| 291 | core::string_view name, | ||
| 292 | core::string_view s) const noexcept; | ||
| 293 | |||
| 294 | //--- | ||
| 295 | |||
| 296 | /** Return a forward range containing values for all matching fields | ||
| 297 | */ | ||
| 298 | BOOST_HTTP_PROTO_DECL | ||
| 299 | subrange | ||
| 300 | find_all(field id) const noexcept; | ||
| 301 | |||
| 302 | /** Return a forward range containing values for all matching fields | ||
| 303 | */ | ||
| 304 | BOOST_HTTP_PROTO_DECL | ||
| 305 | subrange | ||
| 306 | find_all( | ||
| 307 | core::string_view name) const noexcept; | ||
| 308 | }; | ||
| 309 | |||
| 310 | } // http_proto | ||
| 311 | } // boost | ||
| 312 | |||
| 313 | #include <boost/http_proto/impl/fields_view_base.hpp> | ||
| 314 | |||
| 315 | #endif | ||
| 316 |