1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
#ifndef HTTP_HH
#define HTTP_HH
#include "unique_fd.hh"
#include <cstdint>
#include <memory>
#include <optional>
#include <string_view>
class Buffer;
namespace logger {
class Logger;
} // namespace logger
namespace looper {
class Looper;
} // namespace looper
namespace cfg {
class Config;
} // namespace cfg
namespace http {
enum class StatusCode : uint16_t {
kSwitchingProtocols = 101,
kOK = 200,
kNoContent = 204,
kBadRequest = 400,
kNotFound = 404,
kMethodNotAllowed = 405,
};
class OpenPort {
public:
virtual ~OpenPort() = default;
protected:
OpenPort() = default;
OpenPort(OpenPort const&) = delete;
OpenPort& operator=(OpenPort const&) = delete;
};
// Returns nullptr in case of error, the error is written to logger.
std::unique_ptr<OpenPort> open_port(std::string_view host_port,
logger::Logger& logger);
class MimeType {
public:
virtual ~MimeType() = default;
[[nodiscard]]
virtual std::string_view type() const = 0;
[[nodiscard]]
virtual std::string_view subtype() const = 0;
[[nodiscard]]
virtual std::optional<std::string_view> parameter(
std::string_view name) const = 0;
[[nodiscard]]
virtual std::string const& string() const = 0;
class Builder {
public:
virtual ~Builder() = default;
virtual Builder& parameter(std::string_view name,
std::string_view value) = 0;
[[nodiscard]]
virtual std::unique_ptr<MimeType> build() const = 0;
[[nodiscard]]
static std::unique_ptr<Builder> create(std::string_view type,
std::string_view subtype);
protected:
Builder() = default;
Builder(Builder const&) = delete;
Builder& operator=(Builder const&) = delete;
};
// Short version of Builder::create(type, subtype).build()
[[nodiscard]]
static std::unique_ptr<MimeType> create(std::string_view type,
std::string_view subtype);
protected:
MimeType() = default;
MimeType(MimeType const&) = delete;
MimeType& operator=(MimeType const&) = delete;
};
class Request {
public:
virtual ~Request() = default;
[[nodiscard]]
virtual std::string_view method() const = 0;
[[nodiscard]]
virtual std::string_view path() const = 0;
[[nodiscard]]
virtual std::string_view body() const = 0;
[[nodiscard]]
virtual bool header_contains(std::string_view name,
std::string_view value) const = 0;
[[nodiscard]]
virtual std::optional<std::string_view> header_value(
std::string_view name) const = 0;
protected:
Request() = default;
Request(Request const&) = delete;
Request& operator=(Request const&) = delete;
};
class SocketReceiver {
public:
virtual ~SocketReceiver() = default;
virtual void receive(unique_fd&& fd) = 0;
protected:
SocketReceiver() = default;
};
class Response {
public:
virtual ~Response() = default;
class Builder {
public:
virtual ~Builder() = default;
virtual Builder& content(std::string_view content) = 0;
virtual Builder& add_header(std::string_view name,
std::string_view value) = 0;
virtual Builder& take_over(SocketReceiver& receiver) = 0;
[[nodiscard]]
virtual std::unique_ptr<Response> build() const = 0;
[[nodiscard]]
static std::unique_ptr<Builder> create(StatusCode status_code);
protected:
Builder() = default;
Builder(Builder const&) = delete;
Builder& operator=(Builder const&) = delete;
};
// Short version of Builder::create(status_code).build()
[[nodiscard]]
static std::unique_ptr<Response> status(StatusCode status_code);
// Short version of Builder::create(StatusCode::kOK).content(content)
// .add_header("Content-Type", mime_type).build()
[[nodiscard]]
static std::unique_ptr<Response> content(std::string_view content,
MimeType const& mime_type);
// Returns true while there is more data to write.
virtual bool write(Buffer& buffer) = 0;
virtual SocketReceiver* socket_receiver() const = 0;
protected:
Response() = default;
Response(Response const&) = delete;
Response& operator=(Response const&) = delete;
};
class Server {
public:
virtual ~Server() = default;
class Delegate {
public:
virtual ~Delegate() = default;
virtual std::unique_ptr<Response> handle(Request const& request) = 0;
protected:
Delegate() = default;
};
protected:
Server() = default;
Server(Server const&) = delete;
Server& operator=(Server const&) = delete;
};
std::unique_ptr<Server> create_server(logger::Logger& logger,
cfg::Config const& cfg,
looper::Looper& looper,
std::unique_ptr<OpenPort> open_port,
Server::Delegate& delegate);
} // namespace http
#endif // HTTP_HH
|
