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capabilitiesfactory.cpp
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capabilitiesfactory.cpp
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/****************************************************************************
**
** Jreen
**
** Copyright © 2011 Aleksey Sidorov <gorthauer87@yandex.ru>
**
*****************************************************************************
**
** $JREEN_BEGIN_LICENSE$
** Jreen 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 3 of the License, or
** (at your option) any later version.
**
** Jreen 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.
**
** You should have received a copy of the GNU Lesser General Public License
** along with Jreen. If not, see <http://www.gnu.org/licenses/>.
** $JREEN_END_LICENSE$
**
****************************************************************************/
#include "capabilitiesfactory_p.h"
#include "disco.h"
#include <QStringList>
#include <QCryptographicHash>
#include <QXmlStreamWriter>
#include <QStringBuilder>
#define NS_CAPS QLatin1String("http://jabber.org/protocol/caps")
namespace Jreen {
QString CapabilitesFactory::verificationValue(Jreen::Disco *disco)
{
QString s;
QStringList sl;
const Disco::IdentityList &identity_list = disco->identities();
foreach(const Disco::Identity &i, identity_list) {
sl << (i.category() % QLatin1Char('/')
% i.type() % QLatin1Char('/')
% i.lang() % QLatin1Char('/')
% i.name());
}
sl.sort();
foreach(const QString &str, sl)
s.append(str).append(QLatin1Char('<'));
sl = disco->features().values();
sl.sort();
foreach(const QString &str, sl)
s.append(str).append(QLatin1Char('<'));
const DataForm *data = disco->form();
if(data) {
QString form_type;
QMap<QString,QStringList> fields;
for (int i = 0; i < data->fieldsCount(); i++) {
DataFormField field = data->field(i);
if(field.var() == QLatin1String("FORM_TYPE"))
form_type = field.cast<DataFormFieldHidden>().value();
else
fields.insert(field.var(), QVariant(field.values()).toStringList());
}
s.append(form_type).append(QLatin1Char('<'));
QMap<QString,QStringList>::iterator it = fields.begin();
for(; it != fields.end(); it++) {
s.append(it.key()).append(QLatin1Char('<'));
foreach(const QString &value, it.value())
s.append(value).append(QLatin1Char('<'));
}
}
return s;
}
QString CapabilitesFactory::hashValue(Disco *disco)
{
const QString s = verificationValue(disco);
return QString::fromLatin1(QCryptographicHash::hash(s.toUtf8(), QCryptographicHash::Sha1).toBase64());
}
CapabilitesFactory::CapabilitesFactory(Disco *disco)
: m_disco(disco)
{
}
CapabilitesFactory::~CapabilitesFactory()
{
}
QStringList CapabilitesFactory::features() const
{
return QStringList(NS_CAPS);
}
bool CapabilitesFactory::canParse(const QStringRef &name, const QStringRef &uri,
const QXmlStreamAttributes &attributes)
{
Q_UNUSED(attributes);
return name == QLatin1String("c") && uri == NS_CAPS;
}
void CapabilitesFactory::handleStartElement(const QStringRef &name, const QStringRef &uri,
const QXmlStreamAttributes &attributes)
{
Q_UNUSED(name);
Q_UNUSED(uri);
m_node = attributes.value(QLatin1String("node")).toString();
m_ver = attributes.value(QLatin1String("ver")).toString();
}
void CapabilitesFactory::handleEndElement(const QStringRef &name, const QStringRef &uri)
{
Q_UNUSED(name);
Q_UNUSED(uri);
}
void CapabilitesFactory::handleCharacterData(const QStringRef &text)
{
Q_UNUSED(text);
}
void CapabilitesFactory::serialize(Payload *extension, QXmlStreamWriter *writer)
{
Capabilities *caps = se_cast<Capabilities*>(extension);
QString ver = caps->ver().isEmpty() ? hashValue(m_disco) : caps->ver();
writer->writeStartElement(QLatin1String("c"));
writer->writeDefaultNamespace(NS_CAPS);
writer->writeAttribute(QLatin1String("hash"), QLatin1String("sha-1"));
writer->writeAttribute(QLatin1String("ver"), ver);
writer->writeAttribute(QLatin1String("node"), caps->node());
writer->writeEndElement();
}
Payload::Ptr CapabilitesFactory::createPayload()
{
return Payload::Ptr(new Capabilities(m_ver, m_node));
}
} // namespace Jreen