Add redirects policy to QNetworkAccessManager

This patch makes it possible to enable/disable redirects on QNAM
level (before it was per-request only). This policy would be applied
to all subsequent requests* created by QNAM.

The policies we support at the moment:
a. Manual - that's what we always had - it's up to a user to handle
   redirects.
b. NoLessSafeRedirectsPolicy - we allow http->http, http->https and
   https->https redirects, but no protocol 'downgrade' (no
   https->http redirects).
c. SameOriginPolicy - we check that protocol/host/port are
   the same.

Updated tst_qnetworkreply.

*We previously were enabling redirect for each request, by
 setting FollowRedirectsAttribute on QNetworkRequest object.
 For backward compatibility this attribute has a higher priority
 (if set) than QNAM's policy (and it will work as NoLessSafeRedirectsPolicy).

[ChangeLog][QtNetwork] Added redirects policy to QNAM

Task-number: QTPM-239
Task-number: QTPM-237
Change-Id: I493d1728254b71b61b5504937e8e01dca5953527
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/network/access/qnetworkaccessmanager.h b/src/network/access/qnetworkaccessmanager.h
index 649013cced..c0a27100e5 100644
--- a/src/network/access/qnetworkaccessmanager.h
+++ b/src/network/access/qnetworkaccessmanager.h
@@ -41,6 +41,7 @@
 #define QNETWORKACCESSMANAGER_H
 
 #include <QtNetwork/qtnetworkglobal.h>
+#include <QtNetwork/qnetworkrequest.h>
 #include <QtCore/QObject>
 #ifndef QT_NO_SSL
 #include <QtNetwork/QSslConfiguration>
@@ -49,7 +50,6 @@
 
 QT_BEGIN_NAMESPACE
 
-
 class QIODevice;
 class QAbstractNetworkCache;
 class QAuthenticator;
@@ -57,7 +57,6 @@ class QByteArray;
 template<typename T> class QList;
 class QNetworkCookie;
 class QNetworkCookieJar;
-class QNetworkRequest;
 class QNetworkReply;
 class QNetworkProxy;
 class QNetworkProxyFactory;
@@ -149,6 +148,9 @@ public:
 #endif
     void connectToHost(const QString &hostName, quint16 port = 80);
 
+    void setRedirectsPolicy(QNetworkRequest::RedirectsPolicy policy);
+    QNetworkRequest::RedirectsPolicy redirectsPolicy() const;
+
 Q_SIGNALS:
 #ifndef QT_NO_NETWORKPROXY
     void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator);