1 /*
2 * Copyright (c) 2017 Nathan Osman
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20 * IN THE SOFTWARE.
21 */
22
23 #include <QGenericArgument>
24 #include <QMetaMethod>
25
26 #include <qhttpengine/qobjecthandler.h>
27 #include <qhttpengine/socket.h>
28
29 #include "qobjecthandler_p.h"
30
31 using namespace QHttpEngine;
32
QObjectHandlerPrivate(QObjectHandler * handler)33 QObjectHandlerPrivate::QObjectHandlerPrivate(QObjectHandler *handler)
34 : QObject(handler),
35 q(handler)
36 {
37 }
38
QObjectHandler(QObject * parent)39 QObjectHandler::QObjectHandler(QObject *parent)
40 : Handler(parent),
41 d(new QObjectHandlerPrivate(this))
42 {
43 }
44
invokeSlot(Socket * socket,Method m)45 void QObjectHandlerPrivate::invokeSlot(Socket *socket, Method m)
46 {
47 // Invoke the slot
48 if (m.oldSlot) {
49
50 // Obtain the slot index
51 int index = m.receiver->metaObject()->indexOfSlot(m.slot.method + 1);
52 if (index == -1) {
53 socket->writeError(Socket::InternalServerError);
54 return;
55 }
56
57 QMetaMethod method = m.receiver->metaObject()->method(index);
58
59 // Ensure the parameter is correct
60 QList<QByteArray> params = method.parameterTypes();
61 if (params.count() != 1 || params.at(0) != "QHttpEngine::Socket*") {
62 socket->writeError(Socket::InternalServerError);
63 return;
64 }
65
66 // Invoke the method
67 if (!m.receiver->metaObject()->method(index).invoke(
68 m.receiver, Q_ARG(Socket*, socket))) {
69 socket->writeError(Socket::InternalServerError);
70 return;
71 }
72 } else {
73 void *args[] = {
74 Q_NULLPTR,
75 &socket
76 };
77 m.slot.slotObj->call(m.receiver, args);
78 }
79 }
80
process(Socket * socket,const QString & path)81 void QObjectHandler::process(Socket *socket, const QString &path)
82 {
83 // Ensure the method has been registered
84 if (!d->map.contains(path)) {
85 socket->writeError(Socket::NotFound);
86 return;
87 }
88
89 QObjectHandlerPrivate::Method m = d->map.value(path);
90
91 // If the slot requires all data to be received, check to see if this is
92 // already the case, otherwise, wait until the rest of it arrives
93 if (!m.readAll || socket->bytesAvailable() >= socket->contentLength()) {
94 d->invokeSlot(socket, m);
95 } else {
96 connect(socket, &Socket::readChannelFinished, [this, socket, m]() {
97 d->invokeSlot(socket, m);
98 });
99 }
100 }
101
registerMethod(const QString & name,QObject * receiver,const char * method,bool readAll)102 void QObjectHandler::registerMethod(const QString &name, QObject *receiver, const char *method, bool readAll)
103 {
104 d->map.insert(name, QObjectHandlerPrivate::Method(receiver, method, readAll));
105 }
106
registerMethodImpl(const QString & name,QObject * receiver,QtPrivate::QSlotObjectBase * slotObj,bool readAll)107 void QObjectHandler::registerMethodImpl(const QString &name, QObject *receiver, QtPrivate::QSlotObjectBase *slotObj, bool readAll)
108 {
109 d->map.insert(name, QObjectHandlerPrivate::Method(receiver, slotObj, readAll));
110 }
111