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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2005 Vincent Richard <vincent@vincent-richard.net>
//
// 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) 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#include "vmime/attachmentHelper.hpp"
#include "vmime/bodyPartAttachment.hpp"
namespace vmime
{
// static
const bool attachmentHelper::isBodyPartAnAttachment(ref <const bodyPart> part)
{
try
{
const contentDispositionField& cdf = dynamic_cast<contentDispositionField&>
(*part->getHeader()->findField(fields::CONTENT_DISPOSITION));
if (cdf.getValue().getName() != contentDispositionTypes::INLINE)
return true;
}
catch (exceptions::no_such_field)
{
// No "Content-disposition" field: assume "attachment" if
// type is not "text/..." or "multipart/...".
mediaType type;
try
{
const contentTypeField& ctf = dynamic_cast<contentTypeField&>
(*part->getHeader()->findField(fields::CONTENT_TYPE));
type = ctf.getValue();
}
catch (exceptions::no_such_field)
{
// No "Content-type" field: assume "application/octet-stream".
type = mediaType(mediaTypes::APPLICATION,
mediaTypes::APPLICATION_OCTET_STREAM);
}
if (type.getType() != mediaTypes::TEXT &&
type.getType() != mediaTypes::MULTIPART)
{
// If a "Content-Id" field is present, it might be an
// embedded object (MHTML messages)
if (part->getHeader()->hasField(vmime::fields::CONTENT_ID))
return false;
return true;
}
}
return false;
}
// static
ref <const attachment>
attachmentHelper::getBodyPartAttachment(ref <const bodyPart> part)
{
if (!isBodyPartAnAttachment(part))
return NULL;
return vmime::create <bodyPartAttachment>(part);
}
// static
const std::vector <ref <const attachment> >
attachmentHelper::findAttachmentsInMessage(ref <const message> msg)
{
return findAttachmentsInBodyPart(msg);
}
// static
const std::vector <ref <const attachment> >
attachmentHelper::findAttachmentsInBodyPart(ref <const bodyPart> part)
{
std::vector <ref <const attachment> > atts;
// Test this part
if (isBodyPartAnAttachment(part))
{
atts.push_back(getBodyPartAttachment(part));
}
// Find in sub-parts
else
{
ref <const body> bdy = part->getBody();
for (int i = 0 ; i < bdy->getPartCount() ; ++i)
{
std::vector <ref <const attachment> > partAtts =
findAttachmentsInBodyPart(bdy->getPartAt(i));
for (unsigned int j = 0 ; j < partAtts.size() ; ++i)
atts.push_back(partAtts[j]);
}
}
return atts;
}
// static
void attachmentHelper::addAttachment(ref <message> msg, ref <attachment> att)
{
// We simply search for a "multipart/mixed" part. If no one exists,
// create it in the root part. This (very simple) algorithm should
// work in the most cases.
vmime::mediaType mpMixed(vmime::mediaTypes::MULTIPART,
vmime::mediaTypes::MULTIPART_MIXED);
ref <bodyPart> part = findBodyPart(msg, mpMixed);
if (part == NULL) // create it
{
// Create a new container part for the parts that were in
// the root part of the message
ref <bodyPart> container = vmime::create <bodyPart>();
try
{
container->getHeader()->ContentType()->
setValue(msg->getHeader()->ContentType()->getValue());
}
catch (exceptions::no_such_field&)
{
// Ignore
}
msg->getHeader()->removeAllFields(vmime::fields::CONTENT_DISPOSITION);
msg->getHeader()->removeAllFields(vmime::fields::CONTENT_TRANSFER_ENCODING);
// Move parts from the root part to this new part
const std::vector <ref <bodyPart> > partList =
msg->getBody()->getPartList();
msg->getBody()->removeAllParts();
for (unsigned int i = 0 ; i < partList.size() ; ++i)
container->getBody()->appendPart(partList[i]);
// Set the root part to 'multipart/mixed'
msg->getHeader()->ContentType()->setValue(mpMixed);
msg->getBody()->appendPart(container);
part = msg;
}
// Generate the attachment part
att->generateIn(*part);
}
// static
ref <bodyPart> attachmentHelper::findBodyPart
(ref <bodyPart> part, const mediaType& type)
{
if (part->getBody()->getContentType() == type)
return part;
// Try in sub-parts
ref <body> bdy = part->getBody();
for (int i = 0 ; i < bdy->getPartCount() ; ++i)
{
ref <bodyPart> found =
findBodyPart(bdy->getPartAt(i), type);
if (found != NULL)
return found;
}
return NULL;
}
} // vmime
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