1/*
2 * Copyright (C) 2009-2010 Nokia Corporation and/or its subsidiary(-ies)
3 * Copyright (C) 2009 Girish Ramakrishnan <girish@forwardbias.in>
4 * Copyright (C) 2006 George Staikos <staikos@kde.org>
5 * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
6 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
7 * Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>
8 *
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
28 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include "webpage.h"
34
35#include "launcherwindow.h"
36
37#include <QAuthenticator>
38#include <QDesktopServices>
39#include <QtGui>
40#include <QtNetwork/QNetworkReply>
41#include <QtNetwork/QNetworkRequest>
42#include <QtNetwork/QNetworkProxy>
43
44WebPage::WebPage(QObject* parent)
45    : QWebPage(parent)
46    , m_userAgent()
47    , m_interruptingJavaScriptEnabled(false)
48{
49    applyProxy();
50
51    connect(networkAccessManager(), SIGNAL(authenticationRequired(QNetworkReply*, QAuthenticator*)),
52            this, SLOT(authenticationRequired(QNetworkReply*, QAuthenticator*)));
53    connect(this, SIGNAL(featurePermissionRequested(QWebFrame*, QWebPage::Feature)), this, SLOT(requestPermission(QWebFrame*, QWebPage::Feature)));
54    connect(this, SIGNAL(featurePermissionRequestCanceled(QWebFrame*, QWebPage::Feature)), this, SLOT(featurePermissionRequestCanceled(QWebFrame*, QWebPage::Feature)));
55}
56
57void WebPage::applyProxy()
58{
59    QUrl proxyUrl(qgetenv("http_proxy"));
60
61    if (proxyUrl.isValid() && !proxyUrl.host().isEmpty()) {
62        int proxyPort = (proxyUrl.port() > 0) ? proxyUrl.port() : 8080;
63        networkAccessManager()->setProxy(QNetworkProxy(QNetworkProxy::HttpProxy, proxyUrl.host(), proxyPort));
64    }
65}
66
67bool WebPage::supportsExtension(QWebPage::Extension extension) const
68{
69    if (extension == QWebPage::ErrorPageExtension)
70        return true;
71    return false;
72}
73
74bool WebPage::extension(Extension extension, const ExtensionOption* option, ExtensionReturn* output)
75{
76    const QWebPage::ErrorPageExtensionOption* info = static_cast<const QWebPage::ErrorPageExtensionOption*>(option);
77    QWebPage::ErrorPageExtensionReturn* errorPage = static_cast<QWebPage::ErrorPageExtensionReturn*>(output);
78
79    errorPage->content = QString("<html><head><title>Failed loading page</title></head><body>%1</body></html>")
80        .arg(info->errorString).toUtf8();
81
82    return true;
83}
84
85bool WebPage::acceptNavigationRequest(QWebFrame* frame, const QNetworkRequest& request, NavigationType type)
86{
87    QObject* view = parent();
88
89    QVariant value = view->property("keyboardModifiers");
90
91    if (!value.isNull()) {
92        Qt::KeyboardModifiers modifiers = Qt::KeyboardModifiers(value.toInt());
93
94        if (modifiers & Qt::ShiftModifier) {
95            QWebPage* page = createWindow(QWebPage::WebBrowserWindow);
96            page->mainFrame()->load(request);
97            return false;
98        }
99
100        if (modifiers & Qt::AltModifier) {
101            openUrlInDefaultBrowser(request.url());
102            return false;
103        }
104    }
105
106    return QWebPage::acceptNavigationRequest(frame, request, type);
107}
108
109void WebPage::openUrlInDefaultBrowser(const QUrl& url)
110{
111#ifndef QT_NO_DESKTOPSERVICES
112    if (QAction* action = qobject_cast<QAction*>(sender()))
113        QDesktopServices::openUrl(action->data().toUrl());
114    else
115        QDesktopServices::openUrl(url);
116#endif
117}
118
119QString WebPage::userAgentForUrl(const QUrl& url) const
120{
121    if (!m_userAgent.isEmpty())
122        return m_userAgent;
123    return QWebPage::userAgentForUrl(url);
124}
125
126bool WebPage::shouldInterruptJavaScript()
127{
128    if (!m_interruptingJavaScriptEnabled)
129        return false;
130    return QWebPage::shouldInterruptJavaScript();
131}
132
133void WebPage::authenticationRequired(QNetworkReply* reply, QAuthenticator* authenticator)
134{
135    QDialog* dialog = new QDialog(QApplication::activeWindow());
136    dialog->setWindowTitle("HTTP Authentication");
137
138    QGridLayout* layout = new QGridLayout(dialog);
139    dialog->setLayout(layout);
140
141    QLabel* messageLabel = new QLabel(dialog);
142    messageLabel->setWordWrap(true);
143    QString messageStr = QString("Enter with username and password for: %1");
144    messageLabel->setText(messageStr.arg(reply->url().toString()));
145    layout->addWidget(messageLabel, 0, 1);
146
147#ifndef QT_NO_LINEEDIT
148    QLabel* userLabel = new QLabel("Username:", dialog);
149    layout->addWidget(userLabel, 1, 0);
150    QLineEdit* userInput = new QLineEdit(dialog);
151    layout->addWidget(userInput, 1, 1);
152
153    QLabel* passLabel = new QLabel("Password:", dialog);
154    layout->addWidget(passLabel, 2, 0);
155    QLineEdit* passInput = new QLineEdit(dialog);
156    passInput->setEchoMode(QLineEdit::Password);
157    layout->addWidget(passInput, 2, 1);
158#endif
159
160    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
161            | QDialogButtonBox::Cancel, Qt::Horizontal, dialog);
162    connect(buttonBox, SIGNAL(accepted()), dialog, SLOT(accept()));
163    connect(buttonBox, SIGNAL(rejected()), dialog, SLOT(reject()));
164    layout->addWidget(buttonBox, 3, 1);
165
166    if (dialog->exec() == QDialog::Accepted) {
167#ifndef QT_NO_LINEEDIT
168        authenticator->setUser(userInput->text());
169        authenticator->setPassword(passInput->text());
170#endif
171    }
172
173    delete dialog;
174}
175
176void WebPage::requestPermission(QWebFrame* frame, QWebPage::Feature feature)
177{
178    setFeaturePermission(frame, feature, PermissionGrantedByUser);
179}
180
181void WebPage::featurePermissionRequestCanceled(QWebFrame*, QWebPage::Feature)
182{
183}
184
185QWebPage* WebPage::createWindow(QWebPage::WebWindowType type)
186{
187    LauncherWindow* mw = new LauncherWindow;
188    if (type == WebModalDialog)
189        mw->setWindowModality(Qt::ApplicationModal);
190    mw->show();
191    return mw->page();
192}
193
194QObject* WebPage::createPlugin(const QString &classId, const QUrl&, const QStringList&, const QStringList&)
195{
196    if (classId == "alien_QLabel") {
197        QLabel* l = new QLabel;
198        l->winId();
199        return l;
200    }
201
202#ifndef QT_NO_UITOOLS
203    QUiLoader loader;
204    return loader.createWidget(classId, view());
205#else
206    Q_UNUSED(classId);
207    return 0;
208#endif
209}
210
211