| 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 BOOST_SYMBOL_VISIBLE | ||
| 31 | fields_view_base | ||
| 32 | { | ||
| 33 | detail::header const* ph_; | ||
| 34 | |||
| 35 | friend class fields; | ||
| 36 | friend class fields_base; | ||
| 37 | friend class fields_view; | ||
| 38 | friend class message_base; | ||
| 39 | friend class message_view_base; | ||
| 40 | friend class request; | ||
| 41 | friend class request_view; | ||
| 42 | friend class response; | ||
| 43 | friend class response_view; | ||
| 44 | friend class serializer; | ||
| 45 | |||
| 46 | explicit | ||
| 47 | 988 | fields_view_base( | |
| 48 | detail::header const* ph) noexcept | ||
| 49 | 988 | : ph_(ph) | |
| 50 | { | ||
| 51 | 988 | } | |
| 52 | |||
| 53 | fields_view_base( | ||
| 54 | fields_view_base const&) = default; | ||
| 55 | fields_view_base& | ||
| 56 | operator=(fields_view_base const&) = default; | ||
| 57 | |||
| 58 | public: | ||
| 59 | //-------------------------------------------- | ||
| 60 | // | ||
| 61 | // Types | ||
| 62 | // | ||
| 63 | //-------------------------------------------- | ||
| 64 | |||
| 65 | /** A field | ||
| 66 | */ | ||
| 67 | /**@{*/ | ||
| 68 | struct reference | ||
| 69 | { | ||
| 70 | field const id; | ||
| 71 | core::string_view const name; | ||
| 72 | core::string_view const value; | ||
| 73 | |||
| 74 | #ifndef BOOST_HTTP_PROTO_DOCS | ||
| 75 | reference const* | ||
| 76 | 1825 | operator->() const noexcept | |
| 77 | { | ||
| 78 | 1825 | return this; | |
| 79 | } | ||
| 80 | #endif | ||
| 81 | }; | ||
| 82 | |||
| 83 | typedef reference const_reference; | ||
| 84 | /**@}*/ | ||
| 85 | |||
| 86 | /** A type which can represent a field as a value | ||
| 87 | |||
| 88 | This type allows for making a copy of | ||
| 89 | a field where ownership is retained | ||
| 90 | in the copy. | ||
| 91 | */ | ||
| 92 | struct value_type | ||
| 93 | { | ||
| 94 | field id; | ||
| 95 | std::string name; | ||
| 96 | std::string value; | ||
| 97 | |||
| 98 | BOOST_HTTP_PROTO_DECL | ||
| 99 | value_type( | ||
| 100 | reference const& other); | ||
| 101 | |||
| 102 | operator reference() const noexcept; | ||
| 103 | }; | ||
| 104 | |||
| 105 | /** An unsigned integer type | ||
| 106 | */ | ||
| 107 | using size_type = std::size_t; | ||
| 108 | |||
| 109 | /** A signed integer type | ||
| 110 | */ | ||
| 111 | using difference_type = | ||
| 112 | std::ptrdiff_t; | ||
| 113 | |||
| 114 | /** A bidirectional iterator to HTTP fields | ||
| 115 | */ | ||
| 116 | /**@{*/ | ||
| 117 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 118 | using iterator = __see_below__; | ||
| 119 | #else | ||
| 120 | class iterator; | ||
| 121 | #endif | ||
| 122 | |||
| 123 | using const_iterator = iterator; | ||
| 124 | /**@}*/ | ||
| 125 | |||
| 126 | /** A bidirectional reverse iterator to HTTP fields | ||
| 127 | */ | ||
| 128 | /**@{*/ | ||
| 129 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 130 | using reverse_iterator = __see_below__; | ||
| 131 | #else | ||
| 132 | class reverse_iterator; | ||
| 133 | #endif | ||
| 134 | |||
| 135 | using const_reverse_iterator = reverse_iterator; | ||
| 136 | /**@}*/ | ||
| 137 | |||
| 138 | /** A forward range of matching fields | ||
| 139 | |||
| 140 | Objects of this type are returned by | ||
| 141 | the function @ref find_all. | ||
| 142 | */ | ||
| 143 | #ifdef BOOST_HTTP_PROTO_DOCS | ||
| 144 | using subrange = __see_below__; | ||
| 145 | #else | ||
| 146 | class subrange; | ||
| 147 | #endif | ||
| 148 | |||
| 149 | //-------------------------------------------- | ||
| 150 | // | ||
| 151 | // Observers | ||
| 152 | // | ||
| 153 | //-------------------------------------------- | ||
| 154 | |||
| 155 | /** Returns the largest possible serialized message | ||
| 156 | */ | ||
| 157 | static | ||
| 158 | constexpr | ||
| 159 | std::size_t | ||
| 160 | max_size() noexcept | ||
| 161 | { | ||
| 162 | return max_offset; | ||
| 163 | } | ||
| 164 | |||
| 165 | /** Return an iterator to the beginning | ||
| 166 | */ | ||
| 167 | iterator | ||
| 168 | begin() const noexcept; | ||
| 169 | |||
| 170 | /** Return an iterator to the end | ||
| 171 | */ | ||
| 172 | iterator | ||
| 173 | end() const noexcept; | ||
| 174 | |||
| 175 | /** Return a reverse iterator to the beginning | ||
| 176 | */ | ||
| 177 | reverse_iterator | ||
| 178 | rbegin() const noexcept; | ||
| 179 | |||
| 180 | /** Return a reverse iterator to the end | ||
| 181 | */ | ||
| 182 | reverse_iterator | ||
| 183 | rend() const noexcept; | ||
| 184 | |||
| 185 | //--- | ||
| 186 | |||
| 187 | /** Return a string representing the serialized data | ||
| 188 | */ | ||
| 189 | core::string_view | ||
| 190 | 540 | buffer() const noexcept | |
| 191 | { | ||
| 192 | 1080 | return core::string_view( | |
| 193 | 540 | ph_->cbuf, ph_->size); | |
| 194 | } | ||
| 195 | |||
| 196 | /** Returns the number of fields in the container | ||
| 197 | */ | ||
| 198 | std::size_t | ||
| 199 | 184 | size() const noexcept | |
| 200 | { | ||
| 201 | 184 | return ph_->count; | |
| 202 | } | ||
| 203 | |||
| 204 | /** Return true if a field exists | ||
| 205 | */ | ||
| 206 | BOOST_HTTP_PROTO_DECL | ||
| 207 | bool | ||
| 208 | exists(field id) const noexcept; | ||
| 209 | |||
| 210 | /** Return true if a field exists | ||
| 211 | */ | ||
| 212 | BOOST_HTTP_PROTO_DECL | ||
| 213 | bool | ||
| 214 | exists( | ||
| 215 | core::string_view name) const noexcept; | ||
| 216 | |||
| 217 | /** Return the number of matching fields | ||
| 218 | */ | ||
| 219 | BOOST_HTTP_PROTO_DECL | ||
| 220 | std::size_t | ||
| 221 | count(field id) const noexcept; | ||
| 222 | |||
| 223 | /** Return the number of matching fields | ||
| 224 | */ | ||
| 225 | BOOST_HTTP_PROTO_DECL | ||
| 226 | std::size_t | ||
| 227 | count( | ||
| 228 | core::string_view name) const noexcept; | ||
| 229 | |||
| 230 | /** Returns an iterator to the matching element if it exists | ||
| 231 | */ | ||
| 232 | BOOST_HTTP_PROTO_DECL | ||
| 233 | iterator | ||
| 234 | find(field id) const noexcept; | ||
| 235 | |||
| 236 | /** Returns an iterator to the matching element if it exists | ||
| 237 | |||
| 238 | If `name` refers to a known field, it is faster | ||
| 239 | to call @ref find with a field id instead of a | ||
| 240 | string. | ||
| 241 | */ | ||
| 242 | BOOST_HTTP_PROTO_DECL | ||
| 243 | iterator | ||
| 244 | find( | ||
| 245 | core::string_view name) const noexcept; | ||
| 246 | |||
| 247 | /** Returns an iterator to the matching element if it exists | ||
| 248 | */ | ||
| 249 | BOOST_HTTP_PROTO_DECL | ||
| 250 | iterator | ||
| 251 | find( | ||
| 252 | iterator from, | ||
| 253 | field id) const noexcept; | ||
| 254 | |||
| 255 | /** Returns an iterator to the matching element if it exists | ||
| 256 | */ | ||
| 257 | BOOST_HTTP_PROTO_DECL | ||
| 258 | iterator | ||
| 259 | find( | ||
| 260 | iterator from, | ||
| 261 | core::string_view name) const noexcept; | ||
| 262 | |||
| 263 | /** Returns an iterator to the matching element if it exists | ||
| 264 | */ | ||
| 265 | BOOST_HTTP_PROTO_DECL | ||
| 266 | iterator | ||
| 267 | find_last( | ||
| 268 | iterator before, | ||
| 269 | field id) const noexcept; | ||
| 270 | |||
| 271 | /** Returns an iterator to the matching element if it exists | ||
| 272 | */ | ||
| 273 | BOOST_HTTP_PROTO_DECL | ||
| 274 | iterator | ||
| 275 | find_last( | ||
| 276 | iterator before, | ||
| 277 | core::string_view name) const noexcept; | ||
| 278 | |||
| 279 | /** Return the value of a field | ||
| 280 | */ | ||
| 281 | BOOST_HTTP_PROTO_DECL | ||
| 282 | core::string_view | ||
| 283 | value_or( | ||
| 284 | field id, | ||
| 285 | core::string_view s) const noexcept; | ||
| 286 | |||
| 287 | /** Return the value of a field | ||
| 288 | */ | ||
| 289 | BOOST_HTTP_PROTO_DECL | ||
| 290 | core::string_view | ||
| 291 | value_or( | ||
| 292 | core::string_view name, | ||
| 293 | core::string_view s) const noexcept; | ||
| 294 | |||
| 295 | //--- | ||
| 296 | |||
| 297 | /** Return a forward range containing values for all matching fields | ||
| 298 | */ | ||
| 299 | BOOST_HTTP_PROTO_DECL | ||
| 300 | subrange | ||
| 301 | find_all(field id) const noexcept; | ||
| 302 | |||
| 303 | /** Return a forward range containing values for all matching fields | ||
| 304 | */ | ||
| 305 | BOOST_HTTP_PROTO_DECL | ||
| 306 | subrange | ||
| 307 | find_all( | ||
| 308 | core::string_view name) const noexcept; | ||
| 309 | }; | ||
| 310 | |||
| 311 | } // http_proto | ||
| 312 | } // boost | ||
| 313 | |||
| 314 | #include <boost/http_proto/impl/fields_view_base.hpp> | ||
| 315 | |||
| 316 | #endif | ||
| 317 |