Merge branch 'opensearch'

Conflicts:
	src/CMakeLists.txt
	src/urlbar/urlresolver.cpp

10 files changed, 1321 insertions, 0 deletions

diff --git a/src/search/opensearchengine.cpp b/src/search/opensearchengine.cpp
new file mode 100644
index 00000000..78e50980
--- /dev/null
+++ b/src/search/opensearchengine.cpp
@@ -0,0 +1,274 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2009 by Christian Franke <cfchris6@ts2server.com>
+* Copyright (C) 2009 by Fredy Yanardi <fyanardi@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "opensearchengine.h"
+
+// Qt Includes
+#include <QtCore/QRegExp>
+#include <QtCore/QStringList>
+#include <QtScript/QScriptEngine>
+#include <QtScript/QScriptValue>
+
+
+OpenSearchEngine::OpenSearchEngine(QObject *)
+    : m_scriptEngine(0)
+{
+}
+
+
+OpenSearchEngine::~OpenSearchEngine()
+{
+    if (m_scriptEngine) 
+    {
+        delete m_scriptEngine;
+    }
+}
+
+
+QString OpenSearchEngine::parseTemplate(const QString &searchTerm, const QString &searchTemplate)
+{
+    QString result = searchTemplate;
+    result.replace(QL1S("{count}"), QL1S("20"));
+    result.replace(QL1S("{startIndex}"), QL1S("0"));
+    result.replace(QL1S("{startPage}"), QL1S("0"));
+    // TODO - get setting from KDE
+    result.replace(QL1S("{language}"), QL1S("en-US"));
+    result.replace(QL1S("{inputEncoding}"), QL1S("UTF-8"));
+    result.replace(QL1S("{outputEncoding}"), QL1S("UTF-8"));
+    result.replace(QL1S("{searchTerms}"), searchTerm);
+
+    return result;
+}
+
+
+QString OpenSearchEngine::name() const
+{
+    return m_name;
+}
+
+
+void OpenSearchEngine::setName(const QString &name)
+{
+    m_name = name;
+}
+
+
+QString OpenSearchEngine::description() const
+{
+    return m_description;
+}
+
+
+void OpenSearchEngine::setDescription(const QString &description)
+{
+    m_description = description;
+}
+
+
+QString OpenSearchEngine::searchUrlTemplate() const
+{
+    return m_searchUrlTemplate;
+}
+
+
+void OpenSearchEngine::setSearchUrlTemplate(const QString &searchUrlTemplate)
+{
+    m_searchUrlTemplate = searchUrlTemplate;
+}
+
+
+KUrl OpenSearchEngine::searchUrl(const QString &searchTerm) const
+{
+    if (m_searchUrlTemplate.isEmpty()) 
+    {
+        return KUrl();
+    }
+
+    KUrl retVal = KUrl::fromEncoded(parseTemplate(searchTerm, m_searchUrlTemplate).toUtf8());
+
+    QList<Parameter>::const_iterator i;
+    for ( i = m_searchParameters.constBegin(); i != m_searchParameters.constEnd(); ++i) 
+    {
+        retVal.addQueryItem(i->first, parseTemplate(searchTerm, i->second));
+    }
+
+    return retVal;
+}
+
+
+bool OpenSearchEngine::providesSuggestions() const
+{
+    return !m_suggestionsUrlTemplate.isEmpty();
+}
+
+
+QString OpenSearchEngine::suggestionsUrlTemplate() const
+{
+    return m_suggestionsUrlTemplate;
+}
+
+
+void OpenSearchEngine::setSuggestionsUrlTemplate(const QString &suggestionsUrlTemplate)
+{
+    m_suggestionsUrlTemplate = suggestionsUrlTemplate;
+}
+
+
+KUrl OpenSearchEngine::suggestionsUrl(const QString &searchTerm) const
+{
+    if (m_suggestionsUrlTemplate.isEmpty()) 
+    {
+        return KUrl();
+    }
+
+    KUrl retVal = KUrl::fromEncoded(parseTemplate(searchTerm, m_suggestionsUrlTemplate).toUtf8());
+
+    QList<Parameter>::const_iterator i;
+    for( i = m_suggestionsParameters.constBegin(); i != m_suggestionsParameters.constEnd(); ++i)
+    {
+        retVal.addQueryItem(i->first, parseTemplate(searchTerm, i->second));
+    }
+    return retVal;
+}
+
+
+QList<OpenSearchEngine::Parameter> OpenSearchEngine::searchParameters() const
+{
+    return m_searchParameters;
+}
+
+
+void OpenSearchEngine::setSearchParameters(const QList<Parameter> &searchParameters)
+{
+    m_searchParameters = searchParameters;
+}
+
+
+QList<OpenSearchEngine::Parameter> OpenSearchEngine::suggestionsParameters() const
+{
+    return m_suggestionsParameters;
+}
+
+
+void OpenSearchEngine::setSuggestionsParameters(const QList<Parameter> &suggestionsParameters)
+{
+    m_suggestionsParameters = suggestionsParameters;
+}
+
+
+QString OpenSearchEngine::imageUrl() const
+{
+    return m_imageUrl;
+}
+
+
+void OpenSearchEngine::setImageUrl(const QString &imageUrl)
+{
+    m_imageUrl = imageUrl;
+}
+
+
+QImage OpenSearchEngine::image() const
+{
+    return m_image;
+}
+
+
+void OpenSearchEngine::setImage(const QImage &image)
+{
+    m_image = image;
+}
+
+
+bool OpenSearchEngine::isValid() const
+{
+    return (!m_name.isEmpty() && !m_searchUrlTemplate.isEmpty());
+}
+
+
+bool OpenSearchEngine::operator==(const OpenSearchEngine &other) const
+{
+    return (m_name == other.m_name
+            && m_description == other.m_description
+            && m_imageUrl == other.m_imageUrl
+            && m_searchUrlTemplate == other.m_searchUrlTemplate
+            && m_suggestionsUrlTemplate == other.m_suggestionsUrlTemplate
+            && m_searchParameters == other.m_searchParameters
+            && m_suggestionsParameters == other.m_suggestionsParameters);
+}
+
+
+bool OpenSearchEngine::operator<(const OpenSearchEngine &other) const
+{
+    return (m_name < other.m_name);
+}
+
+
+QStringList OpenSearchEngine::parseSuggestion(const QByteArray &resp)
+{
+    QString response = QString::fromLocal8Bit(resp);
+    response = response.trimmed();
+
+    if (response.isEmpty()) 
+    {
+        return QStringList();
+    }
+
+    if (    !response.startsWith(QL1C('[')) 
+         || !response.endsWith(QL1C(']'))
+       ) 
+    {
+        return QStringList();
+    }
+
+    if (!m_scriptEngine) 
+    {
+        m_scriptEngine = new QScriptEngine();
+    }
+
+    // Evaluate the JSON response using QtScript.
+    if (!m_scriptEngine->canEvaluate(response)) 
+    {
+        return QStringList();
+    }
+
+    QScriptValue responseParts = m_scriptEngine->evaluate(response);
+
+    if (!responseParts.property(1).isArray()) 
+    {
+        return QStringList();
+    }
+
+    QStringList suggestionsList;
+    qScriptValueToSequence(responseParts.property(1), suggestionsList);
+
+    return suggestionsList;
+}
diff --git a/src/search/opensearchengine.h b/src/search/opensearchengine.h
new file mode 100644
index 00000000..f2329624
--- /dev/null
+++ b/src/search/opensearchengine.h
@@ -0,0 +1,110 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2009 by Christian Franke <cfchris6@ts2server.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+#ifndef OPENSEARCHENGINE_H
+#define OPENSEARCHENGINE_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// KDE Includes
+#include <KUrl>
+
+// Qt Includes
+#include <QtCore/QPair>
+#include <QtGui/QImage>
+
+// Forward Declarations
+class QNetworkAccessManager;
+class QNetworkReply;
+class QScriptEngine;
+
+
+class OpenSearchEngine
+{
+public:
+    typedef QPair<QString, QString> Parameter;
+
+    OpenSearchEngine(QObject *parent = 0);
+    ~OpenSearchEngine();
+
+    QString name() const;
+    void setName(const QString &name);
+
+    QString description() const;
+    void setDescription(const QString &description);
+
+    QString searchUrlTemplate() const;
+    void setSearchUrlTemplate(const QString &searchUrl);
+    KUrl searchUrl(const QString &searchTerm) const;
+
+    bool providesSuggestions() const;
+
+    QString suggestionsUrlTemplate() const;
+    void setSuggestionsUrlTemplate(const QString &suggestionsUrl);
+    KUrl suggestionsUrl(const QString &searchTerm) const;
+
+    QList<Parameter> searchParameters() const;
+    void setSearchParameters(const QList<Parameter> &searchParameters);
+
+    QList<Parameter> suggestionsParameters() const;
+    void setSuggestionsParameters(const QList<Parameter> &suggestionsParameters);
+
+    QString imageUrl() const;
+    void setImageUrl(const QString &url);
+
+    QImage image() const;
+    void setImage(const QImage &image);
+
+    bool isValid() const;
+
+    bool operator==(const OpenSearchEngine &other) const;
+    bool operator<(const OpenSearchEngine &other) const;
+
+    QStringList parseSuggestion(const QByteArray &response);
+
+    static QString parseTemplate(const QString &searchTerm, const QString &searchTemplate);
+
+private:
+    QString m_name;
+    QString m_description;
+
+    QString m_imageUrl;
+    QImage m_image;
+
+    QString m_searchUrlTemplate;
+    QString m_suggestionsUrlTemplate;
+    QList<Parameter> m_searchParameters;
+    QList<Parameter> m_suggestionsParameters;
+
+    QScriptEngine *m_scriptEngine;
+};
+
+#endif // OPENSEARCHENGINE_H
diff --git a/src/search/opensearchmanager.cpp b/src/search/opensearchmanager.cpp
new file mode 100644
index 00000000..463c0a11
--- /dev/null
+++ b/src/search/opensearchmanager.cpp
@@ -0,0 +1,213 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Fredy Yanardi <fyanardi@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "opensearchmanager.h"
+#include "opensearchmanager.moc"
+
+// Local Includes
+#include "opensearchengine.h"
+#include "opensearchreader.h"
+#include "opensearchwriter.h"
+
+// KDE Includes
+#include <KDebug>
+#include <KGlobal>
+#include <KStandardDirs>
+#include <KUrl>
+#include <kio/scheduler.h>
+
+// Qt Includes
+#include <QtCore/QFile>
+
+
+OpenSearchManager::OpenSearchManager(QObject *parent)
+    : QObject(parent)
+    , m_activeEngine(0)
+{
+    m_state = IDLE;
+}
+
+
+OpenSearchManager::~OpenSearchManager() 
+{
+    qDeleteAll(m_enginesMap.values());
+    m_enginesMap.clear();
+}
+
+
+void OpenSearchManager::setSearchProvider(const QString &searchProvider)
+{
+    m_activeEngine = 0;
+
+    if (!m_enginesMap.contains(searchProvider)) 
+    {
+        const QString fileName = KGlobal::dirs()->findResource("data", "rekonq/opensearch/" + searchProvider + ".xml");
+        kDebug() << searchProvider <<  " file name path: " << fileName;
+        if (fileName.isEmpty()) 
+        {
+            kDebug() << "OpenSearch file name empty";
+            return;
+        }
+        QFile file(fileName);
+
+        if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) 
+        {
+            kDebug() << "Cannot open opensearch description file: " + fileName;
+            return;
+        }
+
+        OpenSearchReader reader;
+        OpenSearchEngine *engine = reader.read(&file);
+
+        if (engine) 
+        {
+            m_enginesMap.insert(searchProvider, engine);
+        }
+        else 
+        {
+            return;
+        }
+    }
+
+    m_activeEngine = m_enginesMap.value(searchProvider);
+}
+
+
+bool OpenSearchManager::isSuggestionAvailable()
+{
+    return m_activeEngine != 0;
+}
+
+
+void OpenSearchManager::addOpenSearchEngine(const KUrl &url, const QString &title)
+{
+    Q_UNUSED(title);
+
+    m_jobData.clear();
+
+    if (m_state != IDLE) 
+    {
+        // TODO: cancel job
+    }
+
+    m_state = REQ_DESCRIPTION;
+    KIO::TransferJob *job = KIO::get(url, KIO::NoReload, KIO::HideProgressInfo);
+    connect(job, SIGNAL(data(KIO::Job *, const QByteArray &)), this, SLOT(dataReceived(KIO::Job *, const QByteArray &)));
+    connect(job, SIGNAL(result(KJob *)), this, SLOT(jobFinished(KJob *)));
+}
+
+
+void OpenSearchManager::requestSuggestion(const QString &searchText)
+{
+    if (!m_activeEngine) 
+        return;
+
+    if (m_state != IDLE) 
+    {
+        // TODO: cancel job
+    }
+    m_state = REQ_SUGGESTION;
+
+    KUrl url = m_activeEngine->suggestionsUrl(searchText);
+    kDebug() << "Requesting for suggestions: " << url.url();
+    m_jobData.clear();
+    
+    KIO::TransferJob *job = KIO::get(url, KIO::NoReload, KIO::HideProgressInfo);
+    connect(job, SIGNAL(data(KIO::Job *, const QByteArray &)), this, SLOT(dataReceived(KIO::Job *, const QByteArray &)));
+    connect(job, SIGNAL(result(KJob *)), this, SLOT(jobFinished(KJob *)));
+}
+
+
+void OpenSearchManager::dataReceived(KIO::Job *job, const QByteArray &data)
+{
+    Q_UNUSED(job);
+    m_jobData.append(data);
+}
+
+
+void OpenSearchManager::jobFinished(KJob *job)
+{
+    if (job->error())
+        return; // just silently return
+
+    if (m_state == REQ_SUGGESTION) 
+    {
+        const QStringList suggestionsList = m_activeEngine->parseSuggestion(m_jobData);
+        kDebug() << "Received suggestion from " << m_activeEngine->name() << ": " << suggestionsList;
+
+        emit suggestionReceived(suggestionsList);
+        return;
+    }
+
+    if (m_state == REQ_DESCRIPTION) 
+    {
+        OpenSearchReader reader;
+        OpenSearchEngine *engine = reader.read(m_jobData);
+        if (engine) 
+        {
+            m_enginesMap.insert(engine->name(), engine);
+            QString path = KGlobal::dirs()->findResource("data", "rekonq/opensearch/");
+            QString fileName = trimmedEngineName(engine->name());
+            QFile file(path + fileName + ".xml");
+            OpenSearchWriter writer;
+            writer.write(&file, engine);
+
+            QString searchUrl = OpenSearchEngine::parseTemplate("\\{@}", engine->searchUrlTemplate());
+            emit openSearchEngineAdded(engine->name(), searchUrl, fileName);
+        }
+        else 
+        {
+            kFatal() << "Error while adding new open search engine";
+        }
+    }
+}
+
+
+QString OpenSearchManager::trimmedEngineName(const QString &engineName) const
+{
+    QString trimmed;
+    QString::ConstIterator constIter = engineName.constBegin();
+    while (constIter != engineName.constEnd()) 
+    {
+        if (constIter->isSpace()) 
+        {
+            trimmed.append('-');
+        }
+        else 
+        {
+            if (*constIter != '.') 
+            {
+                trimmed.append(constIter->toLower());
+            }
+        }
+        constIter++;
+    }
+
+    return trimmed;
+}
diff --git a/src/search/opensearchmanager.h b/src/search/opensearchmanager.h
new file mode 100644
index 00000000..8a45b83c
--- /dev/null
+++ b/src/search/opensearchmanager.h
@@ -0,0 +1,108 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Fredy Yanardi <fyanardi@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+#ifndef OPENSEARCHMANAGER_H
+#define OPENSEARCHMANAGER_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// KDE Includes
+#include <kio/jobclasses.h>
+
+// Qt Includes
+#include <QtCore/QObject>
+
+// Forward Declarations
+class SuggestionEngine;
+class OpenSearchEngine;
+
+
+/**
+ * This class acts as a proxy between the SearchBar plugin 
+ * and the individual suggestion engine.
+ * This class has a map of all available engines, 
+ * and route the suggestion request to the correct engine.
+ */
+class OpenSearchManager : public QObject
+{
+    Q_OBJECT
+
+    enum STATE 
+    {
+        REQ_SUGGESTION,
+        REQ_DESCRIPTION,
+        IDLE
+    };
+    
+public:
+    /**
+     * Constructor
+     */
+    explicit OpenSearchManager(QObject *parent = 0);
+
+    virtual ~OpenSearchManager();
+
+    void setSearchProvider(const QString &searchProvider);
+
+    /**
+     * Check whether a search suggestion engine is available for the given search provider
+     * @param searchProvider the queried search provider
+     */
+    bool isSuggestionAvailable();
+
+    void addOpenSearchEngine(const KUrl &url, const QString &title);
+
+public slots:
+    /**
+     * Ask the specific suggestion engine to request for suggestion for the search text
+     * @param searchProvider the search provider that provides the suggestion service
+     * @param searchText the text to be queried to the suggestion service
+     */
+    void requestSuggestion(const QString &searchProvider);
+
+private slots:
+    void dataReceived(KIO::Job *job, const QByteArray &data);
+    void jobFinished(KJob *job);
+
+signals:
+    void suggestionReceived(const QStringList &suggestion);
+    void openSearchEngineAdded(const QString &name, const QString &searchUrl, const QString &fileName);
+
+private:
+    QString trimmedEngineName(const QString &engineName) const;
+
+    // QString substitutueSearchText(const QString &searchText, const QString &requestURL) const;
+    QByteArray m_jobData;
+    QMap<QString, OpenSearchEngine*> m_enginesMap;
+    OpenSearchEngine *m_activeEngine;
+    STATE m_state;
+};
+
+#endif // OPENSEARCHMANAGER_H
diff --git a/src/search/opensearchreader.cpp b/src/search/opensearchreader.cpp
new file mode 100644
index 00000000..5b7ece2c
--- /dev/null
+++ b/src/search/opensearchreader.cpp
@@ -0,0 +1,174 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2009 by Fredy Yanardi <fyanardi@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "opensearchreader.h"
+
+// Local Includes
+#include "opensearchengine.h"
+
+// Qt Includes
+#include <QtCore/QIODevice>
+
+
+OpenSearchReader::OpenSearchReader()
+    : QXmlStreamReader()
+{
+}
+
+
+OpenSearchEngine *OpenSearchReader::read(const QByteArray &data)
+{
+    clear();
+    addData(data);
+
+    return read();
+}
+
+
+OpenSearchEngine *OpenSearchReader::read(QIODevice *device)
+{
+    clear();
+
+    if (!device->isOpen()) 
+    {
+        device->open(QIODevice::ReadOnly);
+    }
+
+    setDevice(device);
+    return read();
+}
+
+
+OpenSearchEngine *OpenSearchReader::read()
+{
+    OpenSearchEngine *engine = new OpenSearchEngine();
+
+    while (!isStartElement() && !atEnd()) {
+        readNext();
+    }
+
+    if (    name() != QL1S("OpenSearchDescription")
+         || namespaceUri() != QL1S("http://a9.com/-/spec/opensearch/1.1/")
+       ) 
+    {
+        raiseError(QObject::tr("The file is not an OpenSearch 1.1 file."));
+        return engine;
+    }
+
+    while (!(isEndElement() && name() == QL1S("OpenSearchDescription")) && !atEnd()) 
+    {
+        readNext();
+
+        if (!isStartElement())
+            continue;
+
+        // ShortName
+        if (name() == QL1S("ShortName")) 
+        {
+            engine->setName(readElementText());
+            continue;
+        }
+        
+        // Description
+        if (name() == QL1S("Description")) 
+        {
+            engine->setDescription(readElementText());
+            continue;
+        }
+        
+        // Url
+        if (name() == QL1S("Url")) 
+        {
+            QString type = attributes().value(QL1S("type")).toString();
+            QString url = attributes().value(QL1S("template")).toString();
+
+            if (url.isEmpty())
+                continue;
+
+            QList<OpenSearchEngine::Parameter> parameters;
+
+            readNext();
+
+            while (!(isEndElement() && name() == QL1S("Url"))) 
+            {
+                if (!isStartElement() || (name() != QL1S("Param") && name() != QL1S("Parameter"))) {
+                    readNext();
+                    continue;
+                }
+
+                QString key = attributes().value(QL1S("name")).toString();
+                QString value = attributes().value(QL1S("value")).toString();
+
+                if (!key.isEmpty() && !value.isEmpty()) 
+                {
+                    parameters.append(OpenSearchEngine::Parameter(key, value));
+                }
+
+                while (!isEndElement()) 
+                {
+                    readNext();
+                }
+            }
+
+            if (type == QL1S("application/x-suggestions+json")) 
+            {
+                engine->setSuggestionsUrlTemplate(url);
+                engine->setSuggestionsParameters(parameters);
+            }
+            else 
+            {
+                engine->setSearchUrlTemplate(url);
+                engine->setSearchParameters(parameters);
+            }
+            
+            continue;
+        }
+        
+        // Image
+        if (name() == QL1S("Image")) 
+        {
+             engine->setImageUrl(readElementText());
+             continue;
+        }
+
+        // Engine check
+        if (    !engine->name().isEmpty()
+             && !engine->description().isEmpty()
+             && !engine->suggestionsUrlTemplate().isEmpty()
+             && !engine->searchUrlTemplate().isEmpty()
+             && !engine->imageUrl().isEmpty()
+           ) 
+        {
+            break;
+        }
+    }
+
+    return engine;
+}
diff --git a/src/search/opensearchreader.h b/src/search/opensearchreader.h
new file mode 100644
index 00000000..4e2444e0
--- /dev/null
+++ b/src/search/opensearchreader.h
@@ -0,0 +1,55 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+#ifndef OPENSEARCHREADER_H
+#define OPENSEARCHREADER_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// Qt Includes
+#include <QtCore/QXmlStreamReader>
+
+// Forward Declarations
+class OpenSearchEngine;
+
+
+class OpenSearchReader : public QXmlStreamReader
+{
+public:
+    OpenSearchReader();
+
+    OpenSearchEngine *read(const QByteArray &data);
+    OpenSearchEngine *read(QIODevice *device);
+
+private:
+    OpenSearchEngine *read();
+};
+
+#endif // OPENSEARCHREADER_H
diff --git a/src/search/opensearchwriter.cpp b/src/search/opensearchwriter.cpp
new file mode 100644
index 00000000..81ce022c
--- /dev/null
+++ b/src/search/opensearchwriter.cpp
@@ -0,0 +1,134 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+// Self Includes
+#include "opensearchwriter.h"
+
+// Local Includes
+#include "opensearchengine.h"
+
+// KDE Includes
+#include <KDebug>
+
+// Qt Includes
+#include <QtCore/QIODevice>
+
+
+
+OpenSearchWriter::OpenSearchWriter()
+    : QXmlStreamWriter()
+{
+    setAutoFormatting(true);
+}
+
+
+bool OpenSearchWriter::write(QIODevice *device, OpenSearchEngine *engine)
+{
+    if (!engine)
+        return false;
+
+    if (!device->isOpen())
+        device->open(QIODevice::WriteOnly);
+
+    setDevice(device);
+    write(engine);
+    return true;
+}
+
+
+void OpenSearchWriter::write(OpenSearchEngine *engine)
+{
+    writeStartDocument();
+    writeStartElement(QL1S("OpenSearchDescription"));
+    writeDefaultNamespace(QL1S("http://a9.com/-/spec/opensearch/1.1/"));
+
+    if (!engine->name().isEmpty()) 
+    {
+        writeTextElement(QL1S("ShortName"), engine->name());
+    }
+
+    if (!engine->description().isEmpty()) 
+    {
+        writeTextElement(QL1S("Description"), engine->description());
+    }
+
+    if (!engine->searchUrlTemplate().isEmpty()) 
+    {
+        writeStartElement(QL1S("Url"));
+        writeAttribute(QL1S("method"), QL1S("get"));
+        writeAttribute(QL1S("template"), engine->searchUrlTemplate());
+
+        if (!engine->searchParameters().empty()) 
+        {
+            writeNamespace(QL1S("http://a9.com/-/spec/opensearch/extensions/parameters/1.0/"), QL1S("p"));
+
+            QList<OpenSearchEngine::Parameter>::const_iterator end = engine->searchParameters().constEnd();
+            QList<OpenSearchEngine::Parameter>::const_iterator i = engine->searchParameters().constBegin();
+            for (; i != end; ++i) 
+            {
+                writeStartElement(QL1S("p:Parameter"));
+                writeAttribute(QL1S("name"), i->first);
+                writeAttribute(QL1S("value"), i->second);
+                writeEndElement();
+            }
+        }
+
+        writeEndElement();
+    }
+
+    if (!engine->suggestionsUrlTemplate().isEmpty()) 
+    {
+        writeStartElement(QL1S("Url"));
+        writeAttribute(QL1S("method"), QL1S("get"));
+        writeAttribute(QL1S("type"), QL1S("application/x-suggestions+json"));
+        writeAttribute(QL1S("template"), engine->suggestionsUrlTemplate());
+
+        if (!engine->suggestionsParameters().empty()) 
+        {
+            writeNamespace(QL1S("http://a9.com/-/spec/opensearch/extensions/parameters/1.0/"), QL1S("p"));
+
+            QList<OpenSearchEngine::Parameter>::const_iterator end = engine->suggestionsParameters().constEnd();
+            QList<OpenSearchEngine::Parameter>::const_iterator i = engine->suggestionsParameters().constBegin();
+            for (; i != end; ++i) 
+            {
+                writeStartElement(QL1S("p:Parameter"));
+                writeAttribute(QL1S("name"), i->first);
+                writeAttribute(QL1S("value"), i->second);
+                writeEndElement();
+            }
+        }
+
+        writeEndElement();
+    }
+
+    if (!engine->imageUrl().isEmpty())
+        writeTextElement(QL1S("Image"), engine->imageUrl());
+
+    writeEndElement();
+    writeEndDocument();
+}
diff --git a/src/search/opensearchwriter.h b/src/search/opensearchwriter.h
new file mode 100644
index 00000000..6a2e0d11
--- /dev/null
+++ b/src/search/opensearchwriter.h
@@ -0,0 +1,56 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2009 by Jakub Wieczorek <faw217@gmail.com>
+* Copyright (C) 2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+* Copyright (C) 2010 by Andrea Diamantini <adjam7 at gmail dot com>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+#ifndef OPENSEARCHWRITER_H
+#define OPENSEARCHWRITER_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// Qt Includes
+#include <QtCore/QXmlStreamWriter>
+
+// Forward Declarations
+class QIODevice;
+class OpenSearchEngine;
+
+
+class OpenSearchWriter : public QXmlStreamWriter
+{
+public:
+    OpenSearchWriter();
+
+    bool write(QIODevice *device, OpenSearchEngine *engine);
+
+private:
+    void write(OpenSearchEngine *engine);
+};
+
+#endif
+
diff --git a/src/search/searchengine.cpp b/src/search/searchengine.cpp
new file mode 100644
index 00000000..7065d55f
--- /dev/null
+++ b/src/search/searchengine.cpp
@@ -0,0 +1,139 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2008-2010 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009-2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+
+//local includes
+#include "searchengine.h"
+
+// Auto Includes
+#include "rekonq.h"
+
+//KDE includes
+#include <KConfigGroup>
+#include <KServiceTypeTrader>
+
+
+bool SearchEngine::m_loaded = false;
+QString SearchEngine::m_delimiter = "";
+KService::List SearchEngine::m_favorites;
+KService::Ptr SearchEngine::m_defaultEngine;
+
+
+void SearchEngine::reload()
+{
+    KConfig config("kuriikwsfilterrc"); //Shared with konqueror
+    KConfigGroup cg = config.group("General");
+
+    //load delimiter
+    m_delimiter = cg.readEntry("KeywordDelimiter", ":");
+
+    //load favorite engines
+    QStringList favoriteEngines;
+    favoriteEngines = cg.readEntry("FavoriteSearchEngines", favoriteEngines);
+    KService::List favorites;
+    KService::Ptr service;
+    foreach(const QString &engine, favoriteEngines)
+    {
+        service = KService::serviceByDesktopPath(QString("searchproviders/%1.desktop").arg(engine));
+        if (service)
+                favorites << service;
+    }
+    m_favorites = favorites;
+
+    //load default engine
+    QString d = cg.readEntry("DefaultSearchEngine");  
+    m_defaultEngine = KService::serviceByDesktopPath(QString("searchproviders/%1.desktop").arg(d));
+    if (!m_defaultEngine)
+    {
+        d = QL1S("google");
+        m_defaultEngine = KService::serviceByDesktopPath(QString("searchproviders/%1.desktop").arg(d));
+    }
+    
+    m_loaded = true;
+}
+
+
+QString SearchEngine::delimiter()
+{
+    if (!m_loaded)
+        reload();
+
+    return m_delimiter;
+}
+
+
+KService::List SearchEngine::favorites()
+{
+    if (!m_loaded)
+        reload();
+
+    return m_favorites;
+}
+
+
+KService::Ptr SearchEngine::defaultEngine()
+{
+    if (!m_loaded)
+        reload();
+
+    return m_defaultEngine;
+}
+
+
+KService::Ptr SearchEngine::fromString(QString text)
+{
+    KService::List providers = KServiceTypeTrader::self()->query("SearchProvider");
+    int i = 0;
+    bool found = false;
+    KService::Ptr service;
+    while (!found && i < providers.size())
+    {
+        QStringList list = providers.at(i)->property("Keys").toStringList();
+        foreach(const QString &key, list)
+        {
+            const QString searchPrefix = key + delimiter();
+            if (text.startsWith(searchPrefix))
+            {
+                service = providers.at(i);
+                found = true;
+            }
+        }
+        i++;
+    }
+
+    return service;
+}
+
+
+QString SearchEngine::buildQuery(KService::Ptr engine, QString text)
+{
+    QString query = engine->property("Query").toString();
+    query = query.replace("\\{@}", KUrl::toPercentEncoding(text));
+    return query;
+}
+
+
+
diff --git a/src/search/searchengine.h b/src/search/searchengine.h
new file mode 100644
index 00000000..e57b1a5c
--- /dev/null
+++ b/src/search/searchengine.h
@@ -0,0 +1,58 @@
+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2008-2010 by Andrea Diamantini <adjam7 at gmail dot com>
+* Copyright (C) 2009-2010 by Lionel Chauvin <megabigbug@yahoo.fr>
+*
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License as
+* published by the Free Software Foundation; either version 2 of
+* the License or (at your option) version 3 or any later version
+* accepted by the membership of KDE e.V. (or its successor approved
+* by the membership of KDE e.V.), which shall act as a proxy
+* defined in Section 14 of version 3 of the license.
+*
+* This program 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+* ============================================================ */
+
+#ifndef SEARCHENGINE_H
+#define SEARCHENGINE_H
+
+
+// Rekonq Includes
+#include "rekonq_defines.h"
+
+// KDE Includes
+#include <KService>
+
+//Qt Includes
+#include <QString>
+
+
+class SearchEngine
+{
+public:
+    static void reload();
+    static QString delimiter();
+    static KService::Ptr defaultEngine();
+    static KService::List favorites();
+    static KService::Ptr fromString(QString text);
+    static QString buildQuery(KService::Ptr engine, QString text);
+
+private:
+    static bool m_loaded;
+    static QString m_delimiter;
+    static KService::List m_favorites;
+    static KService::Ptr m_defaultEngine;
+};
+
+#endif