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/*********************************************************************************
** This file is part of QtContacts tracker storage plugin
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public License
** version 2.1 as published by the Free Software Foundation and appearing in the
** file LICENSE.LGPL included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License version
** 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional rights.
** These rights are described in the Nokia Qt LGPL Exception version 1.1, included
** in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
*********************************************************************************/
#include "cdtpavatarupdate.h"
#include "cdtpplugin.h"
#include "debug.h"
using namespace Contactsd;
const QString CDTpAvatarUpdate::Large = QLatin1String("large");
const QString CDTpAvatarUpdate::Square = QLatin1String("square");
void CDTpAvatarUpdate::updateContact(CDTpContact *contactWrapper, QNetworkReply *networkReply,
const QString &filename, const QString &avatarType)
{
(void) new CDTpAvatarUpdate(networkReply, contactWrapper, filename, avatarType);
}
CDTpAvatarUpdate::CDTpAvatarUpdate(QNetworkReply *networkReply,
CDTpContact *contactWrapper,
const QString &filename,
const QString &avatarType)
: QObject()
, mNetworkReply(0)
, mContactWrapper(contactWrapper)
, mFilename(filename)
, mAvatarType(avatarType)
{
setNetworkReply(networkReply);
}
void CDTpAvatarUpdate::setNetworkReply(QNetworkReply *networkReply)
{
if (mNetworkReply) {
mNetworkReply->disconnect(this);
mNetworkReply->deleteLater();
}
mNetworkReply = networkReply;
if (mNetworkReply) {
if (mNetworkReply->isRunning()) {
connect(mNetworkReply, SIGNAL(finished()), this, SLOT(onRequestDone()));
connect(mNetworkReply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onRequestDone()));
} else {
onRequestDone();
}
} else {
// This operation is complete
this->deleteLater();
}
}
void CDTpAvatarUpdate::onRequestDone()
{
QNetworkReply *newReply = 0;
if (mNetworkReply && mNetworkReply->error() == QNetworkReply::NoError) {
newReply = updateContactAvatar();
}
setNetworkReply(newReply);
}
QString CDTpAvatarUpdate::writeAvatarFile(QFile &avatarFile, const QDir &cacheDir)
{
if (not cacheDir.exists() && not QDir::root().mkpath(cacheDir.absolutePath())) {
qCWarning(lcContactsd) << "Could not create large avatar cache dir:" << cacheDir.path();
return QString();
}
QTemporaryFile tempFile(cacheDir.absoluteFilePath(QLatin1String("pinkpony")));
const QByteArray data = mNetworkReply->readAll();
if (tempFile.open() && data.count() == tempFile.write(data)) {
tempFile.close();
if (avatarFile.exists()) {
avatarFile.remove();
}
if (tempFile.rename(avatarFile.fileName())) {
tempFile.setAutoRemove(false);
return avatarFile.fileName();
}
}
return QString();
}
static bool acceptFileSize(qint64 actualFileSize, qint64 expectedFileSize)
{
if (expectedFileSize > 0) {
return (actualFileSize == expectedFileSize);
}
return actualFileSize > 0;
}
QNetworkReply *CDTpAvatarUpdate::updateContactAvatar()
{
// Build filename from the image URL's SHA1 hash.
const QUrl redirectionTarget = mNetworkReply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
const QString avatarUrl = (not redirectionTarget.isEmpty() ? mNetworkReply->url().resolved(redirectionTarget)
: mNetworkReply->url()).toString();
QString filename(mFilename);
if (filename.isEmpty()) {
QByteArray avatarHash = QCryptographicHash::hash(avatarUrl.toUtf8(), QCryptographicHash::Sha1);
filename = QString::fromLatin1(avatarHash.toHex());
}
const QDir cacheDir(CDTpPlugin::cacheFileName(QLatin1String("avatars")));
QFile avatarFile(cacheDir.absoluteFilePath(filename));
// Check for existing avatar file and its size to see if we need to fetch from network.
const qint64 contentLength = mNetworkReply->header(QNetworkRequest::ContentLengthHeader).toLongLong();
QString avatarPath;
if (avatarFile.exists() && acceptFileSize(avatarFile.size(), contentLength)) {
// Seems we can reuse the existing avatar file.
avatarPath = avatarFile.fileName();
} else {
// Follow redirections as done by Facebook's graph API.
if (not redirectionTarget.isEmpty()) {
return mNetworkReply->manager()->get(QNetworkRequest(redirectionTarget));
}
// Facebook delivers a distinct gif image if no avatar is set. Ignore that bugger.
const QString contentType = mNetworkReply->header(QNetworkRequest::ContentTypeHeader).toString();
static const QLatin1String contentTypeImageGif = QLatin1String("image/gif");
static const QLatin1String contentTypeImage = QLatin1String("image/");
if (contentType.startsWith(contentTypeImage) && contentType != contentTypeImageGif) {
avatarPath = writeAvatarFile(avatarFile, cacheDir);
}
}
// Update the contact if a new avatar is available.
if (not avatarPath.isEmpty() && not mContactWrapper.isNull()) {
if (mAvatarType == Square) {
mContactWrapper->setSquareAvatarPath(avatarPath);
} else if (mAvatarType == Large) {
mContactWrapper->setLargeAvatarPath(avatarPath);
}
}
// No further work to do
return 0;
}
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