From f1d4cac31c2bc8e429912a497b8405bb287e12fd Mon Sep 17 00:00:00 2001
From: Andrea Diamantini <adjam7@gmail.com>
Date: Fri, 29 Jun 2012 22:40:36 +0200
Subject: Get sure we are no more serving requests when deleting page.

CCBUG: 282052
---
 src/networkaccessmanager.cpp | 36 +++++++++++++++++++++++++++++++++++-
 src/webpage.cpp              | 10 +++++-----
 2 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/src/networkaccessmanager.cpp b/src/networkaccessmanager.cpp
index 99233aa1..3291b6db 100644
--- a/src/networkaccessmanager.cpp
+++ b/src/networkaccessmanager.cpp
@@ -39,6 +39,36 @@
 #include <KLocale>
 #include <KProtocolManager>
 
+// Qt Includes
+#include <QNetworkReply>
+#include <QTimer>
+
+
+class NullNetworkReply : public QNetworkReply
+{
+public:
+    NullNetworkReply(const QNetworkRequest &req, QObject* parent = 0)
+        :QNetworkReply(parent)
+    {
+        setRequest(req);
+        setUrl(req.url());
+        setHeader(QNetworkRequest::ContentLengthHeader, 0);
+        setHeader(QNetworkRequest::ContentTypeHeader, "text/plain");
+        setError(QNetworkReply::ContentAccessDenied, i18n("Null reply"));
+        setAttribute(QNetworkRequest::User, QNetworkReply::ContentAccessDenied);
+        QTimer::singleShot(0, this, SIGNAL(finished()));
+    }
+
+    virtual void abort() {}
+    virtual qint64 bytesAvailable() const { return 0; }
+
+protected:
+    virtual qint64 readData(char*, qint64) {return -1;}
+};
+
+
+// ----------------------------------------------------------------------------------------------
+
 
 NetworkAccessManager::NetworkAccessManager(QObject *parent)
     : AccessManager(parent)
@@ -60,6 +90,10 @@ QNetworkReply *NetworkAccessManager::createRequest(QNetworkAccessManager::Operat
 {
     WebPage *parentPage = qobject_cast<WebPage *>(parent());
 
+    // NOTE: This to get sure we are NOT serving unused requests
+    if (!parentPage)
+        return new NullNetworkReply(request, this);
+
     QNetworkReply *reply = 0;
 
     // set our "nice" accept-language header...
@@ -73,7 +107,7 @@ QNetworkReply *NetworkAccessManager::createRequest(QNetworkAccessManager::Operat
     if (!reply)
         reply = AccessManager::createRequest(op, req, outgoingData);
 
-    if (parentPage && parentPage->hasNetworkAnalyzerEnabled())
+    if (parentPage->hasNetworkAnalyzerEnabled())
         emit networkData(op, req, reply);
 
     return reply;
diff --git a/src/webpage.cpp b/src/webpage.cpp
index 9278a897..b4f6e03d 100644
--- a/src/webpage.cpp
+++ b/src/webpage.cpp
@@ -128,13 +128,16 @@ WebPage::WebPage(QWidget *parent)
     , _networkAnalyzer(false)
     , _isOnRekonqPage(false)
 {
-    // ----- handling unsupported content...
+    // handling unsupported content...
     setForwardUnsupportedContent(true);
     connect(this, SIGNAL(unsupportedContent(QNetworkReply*)), this, SLOT(handleUnsupportedContent(QNetworkReply*)));
 
-    // ----- rekonq Network Manager
+    // rekonq Network Manager
     NetworkAccessManager *manager = new NetworkAccessManager(this);
 
+    // set network reply object to emit readyRead when it receives meta data
+    manager->setEmitReadyReadOnMetaDataChange(true);
+
     // disable QtWebKit cache to just use KIO one..
     manager->setCache(0);
 
@@ -142,9 +145,6 @@ WebPage::WebPage(QWidget *parent)
     if (parent && parent->window())
         manager->setWindow(parent->window());
 
-    // set network reply object to emit readyRead when it receives meta data
-    manager->setEmitReadyReadOnMetaDataChange(true);
-
     setNetworkAccessManager(manager);
 
     // activate ssl warnings
-- 
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