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mimeutils.cpp
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mimeutils.cpp
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/*
* Copyright (C) 2012 Christian Mollekopf <mollekopf@kolabsys.com>
*
* This program 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.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mimeutils.h"
#include <quuid.h>
#include <QtCore/qfile.h>
#include <qdom.h>
#include <kdebug.h>
#include <kabc/addressee.h>
#include "kolabformat/kolabdefinitions.h"
#include "kolabformat/errorhandler.h"
#include "libkolab-version.h"
namespace Kolab {
namespace Mime {
KMime::Content* findContentByType(const KMime::Message::Ptr &data, const QByteArray &type)
{
if (type.isEmpty()) {
Error() << "Empty type";
return 0;
}
Q_FOREACH(KMime::Content *c, data->contents()) {
// qDebug() << c->contentType()->mimeType() << type;
if (c->contentType()->mimeType() == type) {
return c;
}
}
return 0;
}
KMime::Content* findContentByName(const KMime::Message::Ptr &data, const QString &name, QByteArray &type)
{
Q_FOREACH(KMime::Content *c, data->contents()) {
// kDebug() << "searching: " << c->contentType()->name();
if ( c->contentType()->name() == name ) {
type = c->contentType()->mimeType();
return c;
}
}
return 0;
}
KMime::Content* findContentById(const KMime::Message::Ptr &data, const QByteArray &id, QByteArray &type, QString &name)
{
if (id.isEmpty()) {
Error() << "looking for empty cid";
return 0;
}
Q_FOREACH(KMime::Content *c, data->contents()) {
// kDebug() << "searching: " << c->contentID()->identifier();
if ( c->contentID()->identifier() == id ) {
type = c->contentType()->mimeType();
name = c->contentType()->name();
return c;
}
}
return 0;
}
QByteArray getXmlDocument(const KMime::Message::Ptr &data, const QByteArray &mimetype)
{
if ( KMime::Content *xmlContent = findContentByType( data, mimetype ) ) {
return xmlContent->decodedContent();
}
Error() << "document not found";
return QByteArray();
}
QString fromCid(const QString &cid)
{
if (cid.left(4) != QString::fromLatin1("cid:")) { //Don't set if not a cid, happens when serializing format v2
return QString();
}
return cid.right(cid.size()-4);
}
KMime::Message::Ptr createMessage(const KCalCore::Incidence::Ptr &incidencePtr, const QString &mimetype, const QString &xKolabType, const QByteArray &xml, bool v3, const QString &productId)
{
KMime::Message::Ptr message = createMessage( xKolabType, v3, productId );
message->from()->addAddress( incidencePtr->organizer()->email().toUtf8(), incidencePtr->organizer()->name() );
message->subject()->fromUnicodeString( incidencePtr->uid(), "utf-8" );
KMime::Content *content = createMainPart( mimetype, xml );
message->addContent( content );
Q_FOREACH (KCalCore::Attachment::Ptr attachment, incidencePtr->attachments()) {
//Serialize the attachment as attachment with uri, referencing the created mime-part
if (v3 && !attachment->uri().contains("cid:")) {
//onyl by url, skip
continue;
}
message->addContent( createAttachmentPart(fromCid(attachment->uri()).toLatin1(), attachment->mimeType(), attachment->label(), attachment->decodedData() ) );
}
message->assemble();
return message;
}
KMime::Message::Ptr createMessage(const KABC::Addressee &contact, const QString &mimetype, const QString &xKolabType, const QByteArray &xml, bool v3, const QString &prodid)
{
KMime::Message::Ptr message = Mime::createMessage( xKolabType, v3, prodid );
message->subject()->fromUnicodeString( contact.uid(), "utf-8" );
message->from()->fromUnicodeString( contact.fullEmail(), "utf-8" );
KMime::Content* content = Mime::createMainPart( mimetype, xml );
message->addContent( content );
// TODO add pictures as separate mimeparts
// if ( !contact.picture().isNull() ) {
// QByteArray pic;
// QBuffer buffer(&pic);
// buffer.open(QIODevice::WriteOnly);
// contact.picture().save(&buffer, "PNG");
// buffer.close();
//
// content = Mime::createAttachmentPart(QByteArray(), "image/png", "kolab-picture.png", pic );
// message->addContent(content);
// }
//
// if ( !contact.logo().isNull() ) {
// QByteArray pic;
// QBuffer buffer(&pic);
// buffer.open(QIODevice::WriteOnly);
// contact.logo().save(&buffer, "PNG");
// buffer.close();
//
// content = Mime::createAttachmentPart(QByteArray(), "image/png", "kolab-logo.png", pic );
// message->addContent(content);
// }
//
// if ( !contact.sound().isEmpty() ) {
// content = Mime::createAttachmentPart(QByteArray(), "audio/unknown", "sound", contact.sound() );
// message->addContent(content);
// }
message->assemble();
return message;
}
KMime::Message::Ptr createMessage(const QString &subject, const QString &mimetype, const QString &xKolabType, const QByteArray &xml, bool v3, const QString &prodid)
{
KMime::Message::Ptr message = createMessage( xKolabType, v3, prodid );
if (!subject.isEmpty()) {
message->subject()->fromUnicodeString( subject, "utf-8" );
}
KMime::Content *content = createMainPart( mimetype, xml );
message->addContent( content );
message->assemble();
return message;
}
KMime::Content* createExplanationPart(bool v3)
{
KMime::Content *content = new KMime::Content();
content->contentType()->setMimeType( "text/plain" );
content->contentType()->setCharset( "us-ascii" );
content->contentTransferEncoding()->setEncoding( KMime::Headers::CE7Bit );
if (v3) {
content->setBody( "This is a Kolab Groupware object.\n"
"To view this object you will need an email client that can understand the Kolab Groupware format.\n"
"For a list of such email clients please visit\n"
"http://www.kolab.org/get-kolab\n" );
} else {
content->setBody( "This is a Kolab Groupware object.\n"
"To view this object you will need an email client that can understand the Kolab Groupware format.\n"
"For a list of such email clients please visit\n"
"http://www.kolab.org/get-kolab\n" );
}
return content;
}
KMime::Message::Ptr createMessage(const QString& xKolabType, bool v3, const QString &prodid)
{
KMime::Message::Ptr message( new KMime::Message );
message->date()->setDateTime( KDateTime::currentLocalDateTime() );
KMime::Headers::Generic *h = new KMime::Headers::Generic( X_KOLAB_TYPE_HEADER, message.get(), xKolabType, "utf-8" );
message->appendHeader( h );
if (v3) {
KMime::Headers::Generic *vh = new KMime::Headers::Generic( X_KOLAB_MIME_VERSION_HEADER, message.get(), KOLAB_VERSION_V3, "utf-8" );
message->appendHeader( vh );
}
message->userAgent()->from7BitString( prodid.toLatin1() );
message->contentType()->setMimeType( "multipart/mixed" );
message->contentType()->setBoundary( KMime::multiPartBoundary() );
message->addContent( createExplanationPart(v3) );
return message;
}
KMime::Content* createMainPart(const QString& mimeType, const QByteArray& decodedContent)
{
KMime::Content* content = new KMime::Content();
content->contentType()->setMimeType( mimeType.toLatin1() );
content->contentType()->setName( KOLAB_OBJECT_FILENAME, "us-ascii" );
content->contentTransferEncoding()->setEncoding( KMime::Headers::CEquPr );
content->contentDisposition()->setDisposition( KMime::Headers::CDattachment );
content->contentDisposition()->setFilename( KOLAB_OBJECT_FILENAME );
content->setBody( decodedContent );
return content;
}
KMime::Content* createAttachmentPart(const QByteArray& cid, const QString& mimeType, const QString& fileName, const QByteArray& decodedContent)
{
KMime::Content* content = new KMime::Content();
if (!cid.isEmpty()) {
content->contentID()->setIdentifier( cid );
}
content->contentType()->setMimeType( mimeType.toLatin1() );
content->contentType()->setName( fileName, "us-ascii" );
content->contentTransferEncoding()->setEncoding( KMime::Headers::CEbase64 );
content->contentDisposition()->setDisposition( KMime::Headers::CDattachment );
content->contentDisposition()->setFilename( fileName );
content->setBody( decodedContent );
return content;
}
void getAttachments(KCalCore::Incidence::Ptr incidence, const QStringList &attachments, const KMime::Message::Ptr &mimeData)
{
// kDebug() << "getting " << attachments.size() << "attachments";
// kDebug() << mimeData->encodedContent();
foreach (const QString &name, attachments) {
QByteArray type;
KMime::Content *content = findContentByName(mimeData, name, type);
if (!content) { // guard against malformed events with non-existent attachments
Warning() << "could not find attachment: "<< name << type;
continue;
}
const QByteArray c = content->decodedContent().toBase64();
Debug() << c;
KCalCore::Attachment::Ptr attachment( new KCalCore::Attachment( c, QString::fromLatin1( type ) ) );
attachment->setLabel( name );
incidence->addAttachment(attachment);
Debug() << "ATTACHEMENT NAME" << name << type;
}
}
void getAttachmentsById(KCalCore::Incidence::Ptr incidence, const KMime::Message::Ptr &mimeData)
{
// kDebug() << "getting " << attachments.size() << "attachments";
// kDebug() << mimeData->encodedContent();
foreach(KCalCore::Attachment::Ptr attachment, incidence->attachments()) {
Debug() << attachment->uri();
if (!attachment->uri().contains("cid:")) {
continue;
}
//It's a referenced attachmant, extract it
QByteArray type;
QString name;
KMime::Content *content = findContentById(mimeData, fromCid(attachment->uri()).toLatin1(), type, name);
if (!content) { // guard against malformed events with non-existent attachments
Warning() << "could not find attachment: "<< name << type;
continue;
}
attachment->setUri(QString());
attachment->setData(content->decodedContent().toBase64());
attachment->setMimeType(type);
attachment->setLabel(name);
}
}
}; //Namespace
}; //Namespace

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