1 /*
2  * This file is part of the KDE project.
3  *
4  * Copyright (C) 2008 Michael Howell <mhowell123@gmail.com>
5  * Copyright (C) 2008 Urs Wolfer <uwolfer @ kde.org>
6  * Copyright (C) 2009 Dawit Alemayehu <adawit @ kde.org>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public License
19  * along with this library; see the file COPYING.LIB.  If not, write to
20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21  * Boston, MA 02110-1301, USA.
22  *
23  */
24 
25 #include "kwebpluginfactory.h"
26 #include "kwebpage.h"
27 #include "kwebview.h"
28 
29 #include <kmimetypetrader.h>
30 #include <kservicetypetrader.h>
31 #include <QDebug>
32 
33 #include <kio/job.h>
34 #include <kparts/readonlypart.h>
35 #include <kparts/openurlarguments.h>
36 
37 #include <QListIterator>
38 #include <QStringList>
39 #include <QList>
40 #include <qmimedatabase.h>
41 
42 #include <QWebPluginFactory>
43 #include <QWebFrame>
44 #include <QWebView>
45 
46 #define QL1S(x)  QLatin1String(x)
47 #define QL1C(x)  QLatin1Char(x)
48 
KWebPluginFactory(QObject * parent)49 KWebPluginFactory::KWebPluginFactory(QObject *parent)
50     : QWebPluginFactory(parent), d(nullptr)
51 {
52 }
53 
~KWebPluginFactory()54 KWebPluginFactory::~KWebPluginFactory()
55 {
56 }
57 
create(const QString & _mimeType,const QUrl & url,const QStringList & argumentNames,const QStringList & argumentValues) const58 QObject *KWebPluginFactory::create(const QString &_mimeType, const QUrl &url, const QStringList &argumentNames, const QStringList &argumentValues) const
59 {
60     QString mimeType(_mimeType.trimmed());
61     // If no mimetype is provided, we do our best to correctly determine it here...
62     if (mimeType.isEmpty()) {
63         // qDebug() << "Looking up missing mimetype for plugin resource:" << url;
64         extractGuessedMimeType(url, &mimeType);
65         // qDebug() << "Updated mimetype to" << mimeType;
66     }
67 
68     // Defer handling of flash content to QtWebKit's builtin viewer.
69     // If you want to use/test KDE's nspluginviewer, comment out the
70     // if statement below.
71     KParts::ReadOnlyPart *part = (excludedMimeType(mimeType) ? nullptr : createPartInstanceFrom(mimeType, argumentNames, argumentValues, nullptr, parent()));
72 
73     // qDebug() << "Asked for" << mimeType << "plugin, got" << part;
74 
75     if (part) {
76         QMap<QString, QString> metaData = part->arguments().metaData();
77         QString urlStr = url.toString(QUrl::RemovePath | QUrl::RemoveQuery | QUrl::RemoveFragment);
78         metaData.insert("PropagateHttpHeader", "true");
79         metaData.insert("referrer", urlStr);
80         metaData.insert("cross-domain", urlStr);
81         metaData.insert("main_frame_request", "TRUE");
82         metaData.insert("ssl_activate_warnings", "TRUE");
83 
84         KWebPage *page = qobject_cast<KWebPage *>(parent());
85 
86         if (page) {
87             const QString scheme = page->currentFrame()->url().scheme();
88             if (page && (QString::compare(scheme, QL1S("https"), Qt::CaseInsensitive) == 0 ||
89                          QString::compare(scheme, QL1S("webdavs"), Qt::CaseInsensitive) == 0)) {
90                 metaData.insert("ssl_was_in_use", "TRUE");
91             } else {
92                 metaData.insert("ssl_was_in_use", "FALSE");
93             }
94         }
95 
96         KParts::OpenUrlArguments openUrlArgs = part->arguments();
97         openUrlArgs.metaData() = metaData;
98         openUrlArgs.setMimeType(mimeType);
99         part->setArguments(openUrlArgs);
100         part->openUrl(url);
101         return part->widget();
102     }
103 
104     return nullptr;
105 }
106 
plugins() const107 QList<KWebPluginFactory::Plugin> KWebPluginFactory::plugins() const
108 {
109     QList<Plugin> plugins;
110     return plugins;
111 }
112 
isHttpProtocol(const QUrl & url)113 static bool isHttpProtocol(const QUrl &url)
114 {
115     const QString scheme(url.scheme());
116     return (scheme.startsWith(QL1S("http"), Qt::CaseInsensitive)
117             || scheme.startsWith(QL1S("webdav"), Qt::CaseInsensitive));
118 }
119 
extractGuessedMimeType(const QUrl & url,QString * mimeType) const120 void KWebPluginFactory::extractGuessedMimeType(const QUrl &url, QString *mimeType) const
121 {
122     if (mimeType) {
123         const QUrl reqUrl((isHttpProtocol(url) ? QUrl(url.path()) : url));
124         QMimeDatabase db;
125         QMimeType mime = db.mimeTypeForFile(reqUrl.path(), QMimeDatabase::MatchExtension);
126         if (!mime.isDefault() && !mime.name().startsWith(QL1S("inode/"))) {
127             *mimeType = mime.name();
128         }
129     }
130 }
131 
createPartInstanceFrom(const QString & mimeType,const QStringList & argumentNames,const QStringList & argumentValues,QWidget * parentWidget,QObject * parentObj) const132 KParts::ReadOnlyPart *KWebPluginFactory::createPartInstanceFrom(const QString &mimeType,
133         const QStringList &argumentNames,
134         const QStringList &argumentValues,
135         QWidget *parentWidget,
136         QObject *parentObj) const
137 {
138     KParts::ReadOnlyPart *part = nullptr;
139 
140     if (!mimeType.isEmpty()) {
141         // Only attempt to find a KPart for the supported mime types...
142         QVariantList arguments;
143         const int count = argumentNames.count();
144 
145         for (int i = 0; i < count; ++i) {
146             arguments << QString(argumentNames.at(i) + QL1S("=\"") + argumentValues.at(i) + QL1C('\"'));
147         }
148         part = KMimeTypeTrader::createPartInstanceFromQuery<KParts::ReadOnlyPart>(mimeType, parentWidget, parentObj, QString(), arguments);
149     }
150 
151     return part;
152 }
153 
excludedMimeType(const QString & mimeType) const154 bool KWebPluginFactory::excludedMimeType(const QString &mimeType) const
155 {
156     if (mimeType.startsWith(QL1S("inode/"), Qt::CaseInsensitive)) {
157         return true;
158     }
159 
160     if (mimeType.startsWith(QL1S("application/x-java"), Qt::CaseInsensitive)) {
161         return true;
162     }
163 
164     if (mimeType == QL1S("application/x-shockwave-flash") ||
165             mimeType == QL1S("application/futuresplash")) {
166         return true;
167     }
168 
169     return false;
170 }
171 
172