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1 | // | ||
2 | // Copyright (c) 2021 Vinnie Falco (vinnie.falco@gmail.com) | ||
3 | // Copyright (c) 2024 Christian Mazakas | ||
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_MESSAGE_VIEW_BASE_HPP | ||
12 | #define BOOST_HTTP_PROTO_MESSAGE_VIEW_BASE_HPP | ||
13 | |||
14 | #include <boost/http_proto/detail/config.hpp> | ||
15 | #include <boost/http_proto/fields_view_base.hpp> | ||
16 | #include <boost/http_proto/metadata.hpp> | ||
17 | #include <boost/url/grammar/recycled.hpp> | ||
18 | #include <boost/url/grammar/type_traits.hpp> | ||
19 | #include <memory> | ||
20 | #include <string> | ||
21 | |||
22 | namespace boost { | ||
23 | namespace http_proto { | ||
24 | |||
25 | /** Provides message metadata for requests and responses | ||
26 | */ | ||
27 | class BOOST_SYMBOL_VISIBLE | ||
28 | message_view_base | ||
29 | : public virtual fields_view_base | ||
30 | { | ||
31 | friend class request_view; | ||
32 | friend class response_view; | ||
33 | friend class message_base; | ||
34 | |||
35 | 734 | message_view_base() noexcept | |
36 | // VFALCO This ctor-init has to be | ||
37 | // here even though it isn't called, | ||
38 | // so nullptr doesn't matter. | ||
39 | 734 | : fields_view_base(nullptr) | |
40 | { | ||
41 | 734 | } | |
42 | |||
43 | explicit | ||
44 | message_view_base( | ||
45 | detail::header const* ph) noexcept | ||
46 | : fields_view_base(ph) | ||
47 | { | ||
48 | } | ||
49 | |||
50 | public: | ||
51 | //-------------------------------------------- | ||
52 | // | ||
53 | // Metadata | ||
54 | // | ||
55 | //-------------------------------------------- | ||
56 | |||
57 | /** Return the type of payload of this message | ||
58 | */ | ||
59 | auto | ||
60 | 38 | payload() const noexcept -> | |
61 | http_proto::payload | ||
62 | { | ||
63 | 38 | return ph_->md.payload; | |
64 | } | ||
65 | |||
66 | /** Return the payload size | ||
67 | |||
68 | When @ref payload returns @ref payload::size, | ||
69 | this function returns the number of octets | ||
70 | in the actual message payload. | ||
71 | */ | ||
72 | std::uint64_t | ||
73 | 2 | payload_size() const noexcept | |
74 | { | ||
75 |
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2 | BOOST_ASSERT( |
76 | payload() == payload::size); | ||
77 | 2 | return ph_->md.payload_size; | |
78 | } | ||
79 | |||
80 | /** Return true if semantics indicate connection persistence | ||
81 | */ | ||
82 | bool | ||
83 | 22 | keep_alive() const noexcept | |
84 | { | ||
85 | 22 | return ph_->keep_alive(); | |
86 | } | ||
87 | |||
88 | /** Return metadata about the message | ||
89 | */ | ||
90 | auto | ||
91 | 142 | metadata() const noexcept -> | |
92 | http_proto::metadata const& | ||
93 | { | ||
94 | 142 | return ph_->md; | |
95 | } | ||
96 | |||
97 | /** Return true if the message is using a chunked | ||
98 | transfer encoding. | ||
99 | */ | ||
100 | bool | ||
101 | 30 | chunked() const noexcept | |
102 | { | ||
103 | 30 | return ph_->md.transfer_encoding.is_chunked; | |
104 | } | ||
105 | |||
106 | /** Return true if the message uses some form of | ||
107 | compression (deflate, gzip). | ||
108 | */ | ||
109 | bool | ||
110 | 26 | compressed() const noexcept | |
111 | { | ||
112 | return | ||
113 | 26 | ph_->md.content_encoding.coding != | |
114 | 26 | content_coding_type::none; | |
115 | } | ||
116 | |||
117 | enum content_coding_type | ||
118 | content_coding() const noexcept | ||
119 | { | ||
120 | return ph_->md.content_encoding.coding; | ||
121 | } | ||
122 | }; | ||
123 | |||
124 | } // http_proto | ||
125 | } // boost | ||
126 | |||
127 | #endif | ||
128 |