QWebEngineUrlResponseInterceptor: Implement new URL response interceptor

This patch adds the QWebEngineUrlResponseInterceptor abstract class,
which, when implemented, allows a user to intercept response headers and
modify them in any way they like.

A response interceptor can be set via
QWebEngineProfile::setUrlResponseInterceptor(),
QQuickWebEngineProfile::setUrlResponseInterceptor() or
QWebEnginePage::setUrlResponseInterceptor().

Also, the QWebEngineUrlResponseInfo class is implemented, which contains
the request and response data to be used with the response interceptor.

If a response interceptor is set in the profile and page, the one in the
profile takes precedence.

Fixes: QTBUG-61071
Change-Id: I484d14373ff597b1d531541c066f0102bae28c72
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/core/api/qwebengineurlresponseinfo.cpp b/src/core/api/qwebengineurlresponseinfo.cpp
new file mode 100644
index 000000000..8ec1024da
--- /dev/null
+++ b/src/core/api/qwebengineurlresponseinfo.cpp
@@ -0,0 +1,79 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qwebengineurlresponseinfo.h"
+#include "qwebengineurlresponseinfo_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QWebEngineUrlResponseInfo
+    \brief A utility type for the QWebEngineUrlResponseInterceptor.
+    \inmodule QtWebEngineCore
+    \since 6.6
+
+    Contains information about the request that has caused the response
+    intercepted by a QWebEngineUrlResponseInterceptor.
+
+    \sa QWebEngineUrlResponseInterceptor
+*/
+QWebEngineUrlResponseInfo::QWebEngineUrlResponseInfo(
+        const QUrl &requestUrl, const QHash<QByteArray, QByteArray> &requestHeaders,
+        const QHash<QByteArray, QByteArray> &responseHeaders, QObject *p)
+    : QObject(p)
+    , d_ptr(new QWebEngineUrlResponseInfoPrivate(requestUrl, requestHeaders, responseHeaders))
+{
+}
+
+/*!
+    \property QWebEngineUrlResponseInfo::requestUrl
+    \brief Holds the URL of the URL load request.
+*/
+QUrl QWebEngineUrlResponseInfo::requestUrl() const
+{
+    Q_D(const QWebEngineUrlResponseInfo);
+    return d->requestUrl;
+}
+
+/*!
+    \property QWebEngineUrlResponseInfo::requestHeaders
+    \brief Holds the request headers of the URL load request.
+*/
+QHash<QByteArray, QByteArray> QWebEngineUrlResponseInfo::requestHeaders() const
+{
+    Q_D(const QWebEngineUrlResponseInfo);
+    return d->requestHeaders;
+}
+
+/*!
+    \property QWebEngineUrlResponseInfo::responseHeaders
+    \brief Holds the response headers of the URL load request.
+*/
+QHash<QByteArray, QByteArray> QWebEngineUrlResponseInfo::responseHeaders() const
+{
+    Q_D(const QWebEngineUrlResponseInfo);
+    return d->responseHeaders;
+}
+
+/*!
+    \fn void QWebEngineUrlResponseInfo::setResponseHeaders(
+        const QHash<QByteArray, QByteArray> &newResponseHeaders)
+    \brief Sets the response headers to \a newResponseHeaders.
+
+    Sets the response headers to \a newResponseHeaders. If \a newResponseHeaders
+    differ from the current response headers then
+    QWebEngineUrlResponseInfo::isModified() will now return \c true.
+*/
+void QWebEngineUrlResponseInfo::setResponseHeaders(
+        const QHash<QByteArray, QByteArray> &newResponseHeaders)
+{
+    Q_D(QWebEngineUrlResponseInfo);
+    if (d->responseHeaders != newResponseHeaders) {
+        d->responseHeaders = newResponseHeaders;
+        d->isModified = true;
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qwebengineurlresponseinfo.cpp"