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>

2 files changed, 15 insertions, 0 deletions

diff --git a/src/webenginequick/api/qquickwebengineprofile.cpp b/src/webenginequick/api/qquickwebengineprofile.cpp
index 8292da894..a830e969e 100644
--- a/src/webenginequick/api/qquickwebengineprofile.cpp
+++ b/src/webenginequick/api/qquickwebengineprofile.cpp
@@ -902,6 +902,19 @@ void QQuickWebEngineProfile::setUrlRequestInterceptor(QWebEngineUrlRequestInterc
     d->profileAdapter()->setRequestInterceptor(interceptor);
 }
 
+/*!
+    Registers a response interceptor singleton \a interceptor to intercept URL responses.
+
+    The profile does not take ownership of the pointer.
+
+    \sa QWebEngineUrlResponseInterceptor
+*/
+void QQuickWebEngineProfile::setUrlResponseInterceptor(
+        QWebEngineUrlResponseInterceptor *interceptor)
+{
+    Q_D(QQuickWebEngineProfile);
+    d->profileAdapter()->setResponseInterceptor(interceptor);
+}
 
 /*!
     Returns the custom URL scheme handler register for the URL scheme \a scheme.
diff --git a/src/webenginequick/api/qquickwebengineprofile.h b/src/webenginequick/api/qquickwebengineprofile.h
index 29d6ee0b2..43b02e45a 100644
--- a/src/webenginequick/api/qquickwebengineprofile.h
+++ b/src/webenginequick/api/qquickwebengineprofile.h
@@ -8,6 +8,7 @@
 #include <QtCore/qobject.h>
 #include <QtCore/qscopedpointer.h>
 #include <QtCore/qstring.h>
+#include <QtWebEngineCore/qwebengineurlresponseinterceptor.h>
 #include <QtQml/qqmlregistration.h>
 
 QT_BEGIN_NAMESPACE
@@ -90,6 +91,7 @@ public:
     QWebEngineCookieStore *cookieStore() const;
 
     void setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
+    void setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
 
     const QWebEngineUrlSchemeHandler *urlSchemeHandler(const QByteArray &) const;
     void installUrlSchemeHandler(const QByteArray &scheme, QWebEngineUrlSchemeHandler *);