QNAM HTTP: New attribute, Demo browser: Some request statistic output

New output that tells if a QNetworkReply was retrieved by using
HTTP pipelining.
The demo browser now shows some (debug) output about usage of cache,
pipelining and SSL.

Reviewed-by: Prasanth

2 files changed, 41 insertions, 8 deletions

diff --git a/demos/browser/networkaccessmanager.cpp b/demos/browser/networkaccessmanager.cpp
index 3781652..3ce9c08 100644
--- a/demos/browser/networkaccessmanager.cpp
+++ b/demos/browser/networkaccessmanager.cpp
@@ -57,16 +57,21 @@
 #include <QtNetwork/QAuthenticator>
 #include <QtNetwork/QNetworkDiskCache>
 #include <QtNetwork/QNetworkProxy>
+#include <QtNetwork/QNetworkRequest>
 #include <QtNetwork/QNetworkReply>
 #include <QtNetwork/QSslError>
 
 NetworkAccessManager::NetworkAccessManager(QObject *parent)
-    : QNetworkAccessManager(parent)
+    : QNetworkAccessManager(parent),
+    requestFinishedCount(0), requestFinishedFromCacheCount(0), requestFinishedPipelinedCount(0),
+    requestFinishedSecureCount(0)
 {
     connect(this, SIGNAL(authenticationRequired(QNetworkReply*, QAuthenticator*)),
             SLOT(authenticationRequired(QNetworkReply*,QAuthenticator*)));
     connect(this, SIGNAL(proxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*)),
             SLOT(proxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*)));
+    connect(this, SIGNAL(finished(QNetworkReply *)),
+            SLOT(requestFinished(QNetworkReply *)));
 #ifndef QT_NO_OPENSSL
     connect(this, SIGNAL(sslErrors(QNetworkReply*, const QList<QSslError>&)),
             SLOT(sslErrors(QNetworkReply*, const QList<QSslError>&)));
@@ -79,6 +84,35 @@ NetworkAccessManager::NetworkAccessManager(QObject *parent)
     setCache(diskCache);
 }
 
+QNetworkReply* NetworkAccessManager::createRequest(Operation op, const QNetworkRequest & req, QIODevice * outgoingData)
+{
+    QNetworkRequest request = req; // copy so we can modify
+    // this is a temporary hack until we properly use the pipelining flags from QtWebkit
+    // pipeline everything! :)
+    request.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true);
+    return QNetworkAccessManager::createRequest(op, request, outgoingData);
+}
+
+void NetworkAccessManager::requestFinished(QNetworkReply *reply)
+{
+    requestFinishedCount++;
+
+    if (reply->attribute(QNetworkRequest::SourceIsFromCacheAttribute).toBool() == true)
+        requestFinishedFromCacheCount++;
+
+    if (reply->attribute(QNetworkRequest::HttpPipeliningWasUsedAttribute).toBool() == true)
+        requestFinishedPipelinedCount++;
+
+    if (reply->attribute(QNetworkRequest::ConnectionEncryptedAttribute).toBool() == true)
+        requestFinishedSecureCount++;
+
+    double pctCached = (double(requestFinishedFromCacheCount) * 100.0/ double(requestFinishedCount));
+    double pctPipelined = (double(requestFinishedPipelinedCount) * 100.0/ double(requestFinishedCount));
+    double pctSecure = (double(requestFinishedSecureCount) * 100.0/ double(requestFinishedCount));
+    qDebug("%lli requests [%3.2f%% from cache] [%3.2f%% pipelined] [%3.2f%% SSL/TLS]", requestFinishedCount, pctCached, pctPipelined, pctSecure);
+
+}
+
 void NetworkAccessManager::loadSettings()
 {
     QSettings settings;
diff --git a/demos/browser/networkaccessmanager.h b/demos/browser/networkaccessmanager.h
index 4c4603e..189d6a0 100644
--- a/demos/browser/networkaccessmanager.h
+++ b/demos/browser/networkaccessmanager.h
@@ -52,19 +52,18 @@ class NetworkAccessManager : public QNetworkAccessManager
 public:
     NetworkAccessManager(QObject *parent = 0);
 
-    // this is a temporary hack until we properly use the pipelining flags from QtWebkit
-    // pipeline everything! :)
-    virtual QNetworkReply* createRequest ( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 ) {
-        QNetworkRequest request = req; // copy so we can modify
-        request.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true);
-        return QNetworkAccessManager::createRequest(op, request, outgoingData);
-    }
+    virtual QNetworkReply* createRequest ( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 );
 
 private:
     QList<QString> sslTrustedHostList;
+    qint64 requestFinishedCount;
+    qint64 requestFinishedFromCacheCount;
+    qint64 requestFinishedPipelinedCount;
+    qint64 requestFinishedSecureCount;
 
 public slots:
     void loadSettings();
+    void requestFinished(QNetworkReply *reply);
 
 private slots:
     void authenticationRequired(QNetworkReply *reply, QAuthenticator *auth);