From b54eebb2ce03418b020190ace403e7f3cb23054f Mon Sep 17 00:00:00 2001
From: Manjeet Dahiya <manjeetdahiya@gmail.com>
Date: Sun, 26 Sep 2010 07:36:51 +0000
Subject: capabilitiesCollection to capabilitiesCache

---
 examples/GuiClient/capabilitiesCache.cpp | 178 +++++++++++++++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100644 examples/GuiClient/capabilitiesCache.cpp

(limited to 'examples/GuiClient/capabilitiesCache.cpp')

diff --git a/examples/GuiClient/capabilitiesCache.cpp b/examples/GuiClient/capabilitiesCache.cpp
new file mode 100644
index 00000000..5c01e06f
--- /dev/null
+++ b/examples/GuiClient/capabilitiesCache.cpp
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2008-2010 The QXmpp developers
+ *
+ * Author:
+ *	Manjeet Dahiya
+ *
+ * Source:
+ *	http://code.google.com/p/qxmpp
+ *
+ * This file is a part of QXmpp library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+
+#include "capabilitiesCache.h"
+
+#include "QXmppClient.h"
+#include "QXmppDiscoveryManager.h"
+#include <utils.h>
+
+#include <QCoreApplication>
+#include <QXmlStreamWriter>
+#include <QDir>
+
+capabilitiesCache::capabilitiesCache(QXmppClient* client) :
+    QObject(client), m_client(client)
+{
+    QXmppDiscoveryManager* ext = m_client->findExtension<QXmppDiscoveryManager>();
+    if(ext)
+    {
+        bool check = connect(ext, SIGNAL(infoReceived(const QXmppDiscoveryIq&)),
+                             SLOT(infoReceived(const QXmppDiscoveryIq&)));
+        Q_ASSERT(check);
+    }
+}
+
+bool capabilitiesCache::isCapabilityAvailable(const QString& nodeVer)
+{
+    return m_mapCapabilities.contains(nodeVer);
+}
+
+void capabilitiesCache::requestInfo(const QString& jid, const QString& node)
+{
+    QXmppDiscoveryManager* ext = m_client->findExtension<QXmppDiscoveryManager>();
+    if(ext)
+    {
+        bool alreadyRequested = false;
+        foreach(QString key, m_mapIdNodeVer.keys())
+        {
+            if(m_mapIdNodeVer[key] == node)
+            {
+                alreadyRequested = true;
+                break;
+            }
+        }
+
+        if(!alreadyRequested)
+        {
+            QString id = ext->requestInfo(jid, node);
+            m_mapIdNodeVer[id] = node;
+        }
+    }
+}
+
+void capabilitiesCache::infoReceived(const QXmppDiscoveryIq& discoIqRcv)
+{
+    QXmppDiscoveryIq discoIq = discoIqRcv;
+    if(discoIq.queryType() == QXmppDiscoveryIq::InfoQuery &&
+       discoIq.type() == QXmppIq::Result)
+    {
+        if(discoIq.queryNode().isEmpty())
+        {
+            discoIq.setQueryNode(m_mapIdNodeVer[discoIq.id()]);
+            m_mapIdNodeVer.remove(discoIq.id());
+        }
+
+        discoIq.setTo("");
+        discoIq.setFrom("");
+        discoIq.setId("");
+        m_mapCapabilities[discoIq.queryNode()] = discoIq;
+        saveToCache(discoIq.queryNode());
+    }
+}
+
+void capabilitiesCache::loadAllFromCache()
+{
+    m_mapCapabilities.clear();
+
+    QDir dirCaps(getSettingsDir(m_client->configuration().jidBare())+ "capabilities/");
+    if(dirCaps.exists())
+    {
+        QStringList list = dirCaps.entryList(QStringList("*.xml"));
+        foreach(QString fileName, list)
+        {
+            QFile file(getSettingsDir(m_client->configuration().jidBare())+ "capabilities/" + fileName);
+            if(file.open(QIODevice::ReadOnly))
+            {
+                QDomDocument doc;
+                if(doc.setContent(&file, true))
+                {
+                    QXmppDiscoveryIq discoIq;
+                    discoIq.parse(doc.documentElement());
+                    m_mapCapabilities[discoIq.queryNode()] = discoIq;
+                    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+                }
+            }
+        }
+    }
+}
+
+void capabilitiesCache::saveToCache(const QString& nodeVer)
+{
+    if(!m_mapCapabilities.contains(nodeVer))
+        return;
+
+    QString fileName = getImageHash(nodeVer.toUtf8());
+    QDir dir;
+    if(!dir.exists(getSettingsDir(m_client->configuration().jidBare())))
+        dir.mkpath(getSettingsDir(m_client->configuration().jidBare()));
+
+    QDir dir2;
+    if(!dir2.exists(getSettingsDir(m_client->configuration().jidBare())+ "capabilities/"))
+        dir2.mkpath(getSettingsDir(m_client->configuration().jidBare())+ "capabilities/");
+
+    QString fileCapability = getSettingsDir(m_client->configuration().jidBare()) + "capabilities/" + fileName + ".xml";
+    QFile file(fileCapability);
+
+    if(file.open(QIODevice::ReadWrite))
+    {
+        QXmlStreamWriter stream(&file);
+        stream.setAutoFormatting(true);
+        stream.setAutoFormattingIndent(2);
+        m_mapCapabilities[nodeVer].toXml(&stream);
+        file.close();
+    }
+}
+
+QStringList capabilitiesCache::getFeatures(const QString& nodeVer)
+{
+    if(!m_mapCapabilities.contains(nodeVer))
+        return QStringList();
+
+    return m_mapCapabilities[nodeVer].features();
+}
+
+QStringList capabilitiesCache::getIdentities(const QString& nodeVer)
+{
+    if(!m_mapCapabilities.contains(nodeVer))
+        return QStringList();
+
+    QStringList idList;
+    QList<QXmppDiscoveryIq::Identity> list = m_mapCapabilities[nodeVer].identities();
+    foreach(QXmppDiscoveryIq::Identity identity, list)
+    {
+        QStringList tmpList;
+        if(!identity.name().isEmpty())
+            tmpList << identity.name();
+        if(!identity.category().isEmpty())
+            tmpList << identity.category();
+        if(!identity.type().isEmpty())
+            tmpList << identity.type();
+        if(!identity.language().isEmpty())
+            tmpList << identity.language();
+        idList << tmpList.join(" | ");
+    }
+    return idList;
+}
+
-- 
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