/*
* 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.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.Serializable;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import org.alfresco.email.server.EmailServerModel;
import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.repo.content.encoding.ContentCharsetFinder;
import org.alfresco.service.cmr.dictionary.DictionaryService;
import org.alfresco.service.cmr.email.EmailMessage;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.ContentWriter;
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.cmr.repository.StoreRef;
import org.alfresco.service.cmr.search.ResultSet;
import org.alfresco.service.cmr.search.SearchService;
import org.alfresco.service.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.sun.star.auth.InvalidArgumentException;
/**
* Abstract class implements common logic for processing email messages.
*
* @author maxim
* @since 2.2
*/
public abstract class AbstractEmailMessageHandler implements EmailMessageHandler
{
private static final Log log = LogFactory.getLog(EmailMessageHandler.class);
private DictionaryService dictionaryService;
private NodeService nodeService;
private SearchService searchService;
private ContentService contentService;
private MimetypeService mimetypeService;
/**
* @return Alfresco Content Service.
*/
protected ContentService getContentService()
{
return contentService;
}
/**
* @param contentService Alfresco Content Service.
*/
public void setContentService(ContentService contentService)
{
this.contentService = contentService;
}
/**
* @return the Alfresco dictionary service
*/
protected DictionaryService getDictionaryService()
{
return dictionaryService;
}
/**
* @param dictionaryService Alfresco dictionary service
*/
public void setDictionaryService(DictionaryService dictionaryService)
{
this.dictionaryService = dictionaryService;
}
/**
* @return Alfresco Node Service.
*/
protected NodeService getNodeService()
{
return nodeService;
}
/**
* @param nodeService Alfresco Node Service.
*/
public void setNodeService(NodeService nodeService)
{
this.nodeService = nodeService;
}
/**
* @param searchService Alfresco Search Service.
*/
public void setSearchService(SearchService searchService)
{
this.searchService = searchService;
}
/**
* @return the service used to determine mimeypte and encoding
*/
protected MimetypeService getMimetypeService()
{
return mimetypeService;
}
/**
* @param mimetypeService the the service to determine mimetype and encoding
*/
public void setMimetypeService(MimetypeService mimetypeService)
{
this.mimetypeService = mimetypeService;
}
/**
* @param to Email address which user part specifies node-dbid
* @return Referance to requested node.
* @throws InvalidArgumentException The exception is thrown if input string has incorrect format or empty.
*/
protected NodeRef getTargetNode(String to) throws InvalidArgumentException
{
if (to == null || to.length() == 0)
{
throw new InvalidArgumentException("Input string has to contain email address.");
}
String[] parts = to.split("@");
if (parts.length != 2)
{
throw new InvalidArgumentException("Incorrect email address format.");
}
StoreRef storeRef = new StoreRef(StoreRef.PROTOCOL_WORKSPACE, "SpacesStore");
String query = "@sys\\:node-dbid:" + parts[0];
ResultSet resultSet = searchService.query(storeRef, SearchService.LANGUAGE_LUCENE, query);
if (resultSet.length() == 1)
{
return resultSet.getNodeRef(0);
}
return null;
}
/**
* Write the content to the node
*
* @param nodeRef Target node
* @param content Content
*/
protected void writeContent(NodeRef nodeRef, String content)
{
writeContent(nodeRef, content, MimetypeMap.MIMETYPE_TEXT_PLAIN);
}
/**
* Write the string as content to the node.
*
* @param nodeRef Target node.
* @param content Text for writting.
* @param mimetype MIME content type. For exaple you can set this parameter to "text/html" or "text/xml", etc.
*/
protected void writeContent(NodeRef nodeRef, String content, String mimetype)
{
try
{
InputStream inputStream = new ByteArrayInputStream(content.getBytes("UTF-8"));
writeContent(nodeRef, inputStream, mimetype, "UTF-8");
}
catch (UnsupportedEncodingException e)
{
throw new AlfrescoRuntimeException("Failed to write content", e);
}
}
/**
* Write content to the node from InputStream.
*
* @param nodeRef Target node.
* @param content Content stream.
* @param mimetype MIME content type.
* @param encoding Encoding. Can be null for non text based content.
*/
protected void writeContent(NodeRef nodeRef, InputStream content, String mimetype, String encoding)
{
InputStream bis = new BufferedInputStream(content, 4092);
// Guess the encoding if it is text
if (mimetypeService.isText(mimetype))
{
ContentCharsetFinder charsetFinder = mimetypeService.getContentCharsetFinder();
encoding = charsetFinder.getCharset(bis, mimetype).name();
}
else if (encoding == null)
{
encoding = "UTF-8";
}
if (log.isDebugEnabled())
{
log.debug("Write content (MimeType=\"" + mimetype + "\", Encoding=\"" + encoding + "\"");
}
ContentService contentService = getContentService();
ContentWriter writer = contentService.getWriter(nodeRef, ContentModel.PROP_CONTENT, true);
writer.setMimetype(mimetype);
writer.setEncoding(encoding);
writer.putContent(bis);
}
/**
* Add emailed aspect to the specified node.
*
* @param nodeService Alfresco Node Service.
* @param nodeRef Target node.
* @param mailParser Mail message that will be used for extracting necessary information
*/
protected void addEmailedAspect(NodeRef nodeRef, EmailMessage message)
{
Map<QName, Serializable> emailProps = new HashMap<QName, Serializable>();
emailProps.put(ContentModel.PROP_SENTDATE, message.getSentDate());
emailProps.put(ContentModel.PROP_ORIGINATOR, message.getFrom());
emailProps.put(ContentModel.PROP_ADDRESSEE, message.getTo());
emailProps.put(ContentModel.PROP_SUBJECT, message.getSubject());
nodeService.addAspect(nodeRef, EmailServerModel.ASPECT_EMAILED, emailProps);
if (log.isDebugEnabled())
{
log.debug("Emailed aspect has been added.");
}
}
}