/*
* Copyright (C) 2005-2007 Alfresco Software Limited.
*
* 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.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have recieved a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.email.server.handler;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.mail.MessagingException;
import org.alfresco.email.server.EmailServerModel;
import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.i18n.I18NUtil;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.service.cmr.email.EmailMessage;
import org.alfresco.service.cmr.email.EmailMessageException;
import org.alfresco.service.cmr.email.EmailMessagePart;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.MimetypeService;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Handler implementation address to folder node.
*
* @author Yan O
* @since 2.2
*/
public class FolderEmailMessageHandler extends AbstractEmailMessageHandler
{
private static final String MSG_RECEIVED_BY_SMTP = "email.server.msg.received_by_smtp";
private static final String MSG_DEFAULT_SUBJECT = "email.server.msg.default_subject";
private static final String ERR_MAIL_READ_ERROR = "email.server.err.mail_read_error";
private static final Log log = LogFactory.getLog(FolderEmailMessageHandler.class);
/**
* {@inheritDoc}
*/
public void processMessage(NodeRef nodeRef, EmailMessage message)
{
if (log.isDebugEnabled())
{
log.debug("Message is psocessing by SpaceMailMessageHandler");
}
try
{
// Check type of the node. It must be a SPACE
QName nodeTypeQName = getNodeService().getType(nodeRef);
if (getDictionaryService().isSubClass(nodeTypeQName, ContentModel.TYPE_FOLDER))
{
// Add the content into the system
addAlfrescoContent(nodeRef, message);
}
else
{
throw new AlfrescoRuntimeException("\n" +
"Message handler " + this.getClass().getName() + " cannot handle type " + nodeTypeQName + ".\n" +
"Check the message handler mappings.");
}
}
catch (IOException ex)
{
throw new EmailMessageException(ERR_MAIL_READ_ERROR, ex.getMessage());
}
}
/**
* Add content to Alfresco repository
*
* @param spaceNodeRef Addressed node
* @param mailParser Mail message
* @throws IOException Exception can be thrown while saving a content into Alfresco repository.
* @throws MessagingException Exception can be thrown while parsing e-mail message.
*/
public void addAlfrescoContent(NodeRef spaceNodeRef, EmailMessage message) throws IOException
{
// Set default values for email fields
String messageSubject = message.getSubject();
if (messageSubject == null || messageSubject.length() == 0)
{
Date now = new Date();
messageSubject = I18NUtil.getMessage(MSG_DEFAULT_SUBJECT, new SimpleDateFormat("dd-MM-yyyy-hh-mm-ss").format(now));
}
// Create main content node
NodeRef contentNodeRef;
contentNodeRef = addContentNode(getNodeService(), spaceNodeRef, messageSubject);
// Add titled aspect
addTitledAspect(contentNodeRef, messageSubject, message.getFrom());
// Add emailed aspect
addEmailedAspect(contentNodeRef, message);
// Write the message content
if (message.getBody() != null)
{
InputStream contentIs = message.getBody().getContent();
// The message body is plain text, unless an extension has been provided
MimetypeService mimetypeService = getMimetypeService();
String mimetype = mimetypeService.guessMimetype(messageSubject);
if (mimetype.equals(MimetypeMap.MIMETYPE_BINARY))
{
mimetype= MimetypeMap.MIMETYPE_TEXT_PLAIN;
}
// Use the default encoding. It will get overridden if the body is text.
String encoding = message.getBody().getEncoding();
writeContent(contentNodeRef, contentIs, mimetype, encoding);
}
// Add attachments
EmailMessagePart[] attachments = message.getAttachments();
for (EmailMessagePart attachment : attachments)
{
String fileName = attachment.getFileName();
InputStream contentIs = attachment.getContent();
MimetypeService mimetypeService = getMimetypeService();
String mimetype = mimetypeService.guessMimetype(fileName);
String encoding = attachment.getEncoding();
NodeRef attachmentNode = addAttachment(getNodeService(), spaceNodeRef, contentNodeRef, fileName);
writeContent(attachmentNode, contentIs, mimetype, encoding);
}
}
/**
* Add new node into Alfresco repository with specified parameters. Node content isn't added. New node will be created with ContentModel.ASSOC_CONTAINS association with parent.
*
* @param nodeService Alfresco Node Service
* @param parent Parent node
* @param name Name of the new node
* @return Reference to created node
*/
private NodeRef addContentNode(NodeService nodeService, NodeRef parent, String name)
{
return addContentNode(nodeService, parent, name, ContentModel.ASSOC_CONTAINS);
}
/**
* Add new node into Alfresco repository with specified parameters. Node content isn't added.
*
* @param nodeService Alfresco Node Service
* @param parent Parent node
* @param name Name of the new node
* @param assocType Association type that should be set between parent node and the new one.
* @return Reference to created node
*/
private NodeRef addContentNode(NodeService nodeService, NodeRef parent, String name, QName assocType)
{
NodeRef childNodeRef = nodeService.getChildByName(parent, assocType, name);
if (childNodeRef != null)
{
// The node is present already. Make sure the name csae is correct
nodeService.setProperty(childNodeRef, ContentModel.PROP_NAME, name);
}
else
{
Map<QName, Serializable> contentProps = new HashMap<QName, Serializable>();
contentProps.put(ContentModel.PROP_NAME, name);
ChildAssociationRef associationRef = nodeService.createNode(
parent,
assocType,
QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, name),
ContentModel.TYPE_CONTENT,
contentProps);
childNodeRef = associationRef.getChildRef();
}
return childNodeRef;
}
/**
* Adds new node into Alfresco repository and mark its as an attachment.
*
* @param nodeService Alfresco Node Service.
* @param folder Space/Folder to add.
* @param mainContentNode Main content node. Any mail is added into Alfresco as one main content node and several its attachments. Each attachment related with its main node.
* @param fileName File name for the attachment.
* @return Reference to created node.
*/
private NodeRef addAttachment(NodeService nodeService, NodeRef folder, NodeRef mainContentNode, String fileName)
{
if (log.isDebugEnabled())
{
log.debug("Adding attachment node (name=" + fileName + ").");
}
NodeRef attachmentNode = addContentNode(nodeService, folder, fileName);
// Remove 'attached' aspect so that we work with the document in its clean form
if (nodeService.hasAspect(attachmentNode, EmailServerModel.ASPECT_ATTACHED))
{
nodeService.removeAspect(attachmentNode, EmailServerModel.ASPECT_ATTACHED);
}
// Add attached aspect
nodeService.addAspect(attachmentNode, EmailServerModel.ASPECT_ATTACHED, null);
// Recreate the association
nodeService.createAssociation(attachmentNode, mainContentNode, EmailServerModel.ASSOC_ATTACHMENT);
if (log.isDebugEnabled())
{
log.debug("Attachment has been added.");
}
return attachmentNode;
}
/**
* Adds titled aspect to the specified node.
*
* @param nodeRef Target node.
* @param title Title
*/
private void addTitledAspect(NodeRef nodeRef, String title, String from)
{
Map<QName, Serializable> titledProps = new HashMap<QName, Serializable>();
titledProps.put(ContentModel.PROP_TITLE, title);
titledProps.put(ContentModel.PROP_DESCRIPTION, I18NUtil.getMessage(MSG_RECEIVED_BY_SMTP, from));
getNodeService().addAspect(nodeRef, ContentModel.ASPECT_TITLED, titledProps);
if (log.isDebugEnabled())
{
log.debug("Titled aspect has been added.");
}
}
}