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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
// Copyright (C) 2020 Mikhail Svetkin <mikhail.svetkin@gmail.com>
// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QHTTPSERVER_H
#define QHTTPSERVER_H
#include <QtHttpServer/qabstracthttpserver.h>
#include <QtHttpServer/qhttpserverrouter.h>
#include <QtHttpServer/qhttpserverrouterrule.h>
#include <QtHttpServer/qhttpserverresponse.h>
#include <QtHttpServer/qhttpserverrouterviewtraits.h>
#if QT_CONFIG(future)
# include <QtCore/qfuture.h>
#endif
#include <functional>
#include <tuple>
QT_BEGIN_NAMESPACE
class QHttpServerRequest;
class QHttpServerPrivate;
class Q_HTTPSERVER_EXPORT QHttpServer final : public QAbstractHttpServer
{
Q_OBJECT
Q_DECLARE_PRIVATE(QHttpServer)
template <typename...>
static constexpr bool dependent_false_v = false;
template<typename T>
using ResponseType =
#if QT_CONFIG(future)
std::conditional_t<
std::is_same_v<QFuture<QHttpServerResponse>, T>,
QFuture<QHttpServerResponse>,
QHttpServerResponse
>;
#else
QHttpServerResponse;
#endif
using MissingHandlerPrototype = void (*)(const QHttpServerRequest &request,
QHttpServerResponder &responder);
template <typename T>
using if_missinghandler_prototype_compatible = typename std::enable_if<
QtPrivate::AreFunctionsCompatible<MissingHandlerPrototype, T>::value, bool>::type;
using AfterRequestPrototype = void (*)(const QHttpServerRequest &request,
QHttpServerResponse &response);
template <typename T>
using if_after_request_prototype_compatible = typename std::enable_if<
QtPrivate::AreFunctionsCompatible<AfterRequestPrototype, T>::value, bool>::type;
public:
explicit QHttpServer(QObject *parent = nullptr);
~QHttpServer() override;
QHttpServerRouter *router();
const QHttpServerRouter *router() const;
#ifdef Q_QDOC
template <typename Rule = QHttpServerRouterRule, typename Functor>
Rule *route(const QString &pathPattern, QHttpServerRequest::Methods method,
const QObject *context,
Functor &&slot);
template <typename Rule = QHttpServerRouterRule, typename Functor>
Rule *route(const QString &pathPattern,
const QObject *context,
Functor &&slot);
template <typename Rule = QHttpServerRouterRule, typename Functor>
Rule *route(const QString &pathPattern, QHttpServerRequest::Methods method,
Functor &&handler);
template <typename Rule = QHttpServerRouterRule, typename Functor>
Rule *route(const QString &pathPattern,
Functor &&handler);
#else
template<typename Rule = QHttpServerRouterRule, typename ViewHandler>
Rule *route(const QString &pathPattern, QHttpServerRequest::Methods method,
const typename QtPrivate::ContextTypeForFunctor<ViewHandler>::ContextType *context,
ViewHandler &&viewHandler)
{
using ViewTraits = QHttpServerRouterViewTraits<ViewHandler>;
static_assert(ViewTraits::Arguments::StaticAssert,
"ViewHandler arguments are in the wrong order or not supported");
return routeImpl<Rule, ViewHandler, ViewTraits>(pathPattern, method, context,
std::forward<ViewHandler>(viewHandler));
}
template<typename Rule = QHttpServerRouterRule, typename ViewHandler>
Rule *route(const QString &pathPattern,
const typename QtPrivate::ContextTypeForFunctor<ViewHandler>::ContextType *context,
ViewHandler &&viewHandler)
{
using ViewTraits = QHttpServerRouterViewTraits<ViewHandler>;
static_assert(ViewTraits::Arguments::StaticAssert,
"ViewHandler arguments are in the wrong order or not supported");
return routeImpl<Rule, ViewHandler, ViewTraits>(pathPattern, context,
std::forward<ViewHandler>(viewHandler));
}
template<typename Rule = QHttpServerRouterRule, typename ViewHandler>
Rule *route(const QString &pathPattern,
ViewHandler &&viewHandler)
{
return route<Rule>(pathPattern, QHttpServerRequest::Method::AnyKnown,
this, std::forward<ViewHandler>(viewHandler));
}
template<typename Rule = QHttpServerRouterRule, typename ViewHandler>
Rule *route(const QString &pathPattern, QHttpServerRequest::Methods method,
ViewHandler &&viewHandler)
{
return route<Rule>(pathPattern, method,
this, std::forward<ViewHandler>(viewHandler));
}
#endif
#ifdef Q_QDOC
template <typename Functor>
void setMissingHandler(const QObject *context, Functor &&slot);
#else
template <typename Handler, if_missinghandler_prototype_compatible<Handler> = true>
void setMissingHandler(const typename QtPrivate::ContextTypeForFunctor<Handler>::ContextType *context,
Handler &&handler)
{
setMissingHandlerImpl(context,
QtPrivate::makeCallableObject<MissingHandlerPrototype>(
std::forward<Handler>(handler)));
}
#endif
#ifdef Q_QDOC
template <typename Functor>
void addAfterRequestHandler(const QObject *context, Functor &&slot);
#else
template <typename Handler, if_after_request_prototype_compatible<Handler> = true>
void addAfterRequestHandler(const typename QtPrivate::ContextTypeForFunctor<Handler>::ContextType *context,
Handler &&handler)
{
addAfterRequestHandlerImpl(context,
QtPrivate::makeCallableObject<AfterRequestPrototype>(
std::forward<Handler>(handler)));
}
#endif
void clearMissingHandler();
private:
void setMissingHandlerImpl(const QObject *context, QtPrivate::QSlotObjectBase *handler);
void addAfterRequestHandlerImpl(const QObject *context, QtPrivate::QSlotObjectBase *handler);
template<typename ViewHandler, typename ViewTraits>
auto createRouteHandler(const typename QtPrivate::ContextTypeForFunctor<ViewHandler>::ContextType *context,
ViewHandler &&viewHandler)
{
return [this, context, viewHandler](
const QRegularExpressionMatch &match,
const QHttpServerRequest &request,
QHttpServerResponder &responder) mutable {
auto boundViewHandler = QHttpServerRouterRule::bindCaptured<ViewHandler, ViewTraits>(context,
std::forward<ViewHandler>(viewHandler), match);
responseImpl<ViewTraits>(boundViewHandler, request, std::move(responder));
};
}
template<typename Rule, typename ViewHandler, typename ViewTraits>
Rule *routeImpl(const QString &pathPattern,
const typename QtPrivate::ContextTypeForFunctor<ViewHandler>::ContextType *context,
ViewHandler &&viewHandler)
{
auto routerHandler = createRouteHandler<ViewHandler, ViewTraits>(context,
std::forward<ViewHandler>(viewHandler));
auto rule = std::make_unique<Rule>(pathPattern, context, std::move(routerHandler));
return reinterpret_cast<Rule*>(router()->addRule<ViewHandler, ViewTraits>(std::move(rule)));
}
template<typename Rule, typename ViewHandler, typename ViewTraits>
Rule *routeImpl(const QString &pathPattern, QHttpServerRequest::Methods method,
const typename QtPrivate::ContextTypeForFunctor<ViewHandler>::ContextType *context,
ViewHandler &&viewHandler)
{
auto routerHandler = createRouteHandler<ViewHandler, ViewTraits>(context,
std::forward<ViewHandler>(viewHandler));
auto rule = std::make_unique<Rule>(pathPattern, method, context, std::move(routerHandler));
return reinterpret_cast<Rule*>(router()->addRule<ViewHandler, ViewTraits>(std::move(rule)));
}
template<typename ViewTraits, typename T>
void responseImpl(T &boundViewHandler, const QHttpServerRequest &request,
QHttpServerResponder &&responder)
{
if constexpr (ViewTraits::Arguments::SpecialsCount == 0) {
ResponseType<typename ViewTraits::ReturnType> response(boundViewHandler());
sendResponse(std::move(response), request, std::move(responder));
} else if constexpr (ViewTraits::Arguments::SpecialsCount == 1) {
if constexpr (ViewTraits::Arguments::Last::IsRequest::Value) {
ResponseType<typename ViewTraits::ReturnType> response(boundViewHandler(request));
sendResponse(std::move(response), request, std::move(responder));
} else {
static_assert(std::is_same_v<typename ViewTraits::ReturnType, void>,
"Handlers with responder argument must have void return type.");
boundViewHandler(responder);
}
} else if constexpr (ViewTraits::Arguments::SpecialsCount == 2) {
static_assert(std::is_same_v<typename ViewTraits::ReturnType, void>,
"Handlers with responder argument must have void return type.");
if constexpr (ViewTraits::Arguments::Last::IsRequest::Value) {
boundViewHandler(responder, request);
} else {
boundViewHandler(request, responder);
}
} else {
static_assert(dependent_false_v<ViewTraits>);
}
}
bool handleRequest(const QHttpServerRequest &request,
QHttpServerResponder &responder) override;
void missingHandler(const QHttpServerRequest &request,
QHttpServerResponder &responder) override;
void sendResponse(QHttpServerResponse &&response, const QHttpServerRequest &request,
QHttpServerResponder &&responder);
#if QT_CONFIG(future)
void sendResponse(QFuture<QHttpServerResponse> &&response, const QHttpServerRequest &request,
QHttpServerResponder &&responder);
#endif
};
QT_END_NAMESPACE
#endif // QHTTPSERVER_H
|
