001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.component.mail;
018
019 import java.io.IOException;
020 import java.util.Map;
021
022 import javax.activation.DataHandler;
023 import javax.mail.Message;
024 import javax.mail.MessagingException;
025 import javax.mail.Multipart;
026 import javax.mail.Part;
027
028 import org.apache.camel.RuntimeCamelException;
029 import org.apache.camel.impl.DefaultMessage;
030 import org.apache.camel.util.CollectionHelper;
031 import org.apache.commons.logging.Log;
032 import org.apache.commons.logging.LogFactory;
033
034 /**
035 * Represents a {@link org.apache.camel.Message} for working with Mail
036 *
037 * @version $Revision:520964 $
038 */
039 public class MailMessage extends DefaultMessage {
040 private static final transient Log LOG = LogFactory.getLog(MailMessage.class);
041 private Message mailMessage;
042
043 public MailMessage() {
044 }
045
046 public MailMessage(Message message) {
047 this.mailMessage = message;
048 }
049
050 @Override
051 public String toString() {
052 if (mailMessage != null) {
053 return "MailMessage: " + MailUtils.dumpMessage(mailMessage);
054 } else {
055 return "MailMessage: " + getBody();
056 }
057 }
058
059 @Override
060 public MailExchange getExchange() {
061 return (MailExchange)super.getExchange();
062 }
063
064 public MailMessage copy() {
065 MailMessage answer = (MailMessage)super.copy();
066 answer.mailMessage = mailMessage;
067 return answer;
068 }
069
070 /**
071 * Returns the underlying Mail message
072 */
073 public Message getMessage() {
074 return mailMessage;
075 }
076
077 public void setMessage(Message mailMessage) {
078 this.mailMessage = mailMessage;
079 }
080
081 @Override
082 public Object getHeader(String name) {
083 Object answer = super.getHeader(name);
084
085 // mimic case insensitive search of mail message getHeader
086 if (answer == null) {
087 answer = super.getHeader(name.toLowerCase());
088 }
089 return answer;
090 }
091
092 @Override
093 public MailMessage newInstance() {
094 return new MailMessage();
095 }
096
097 @Override
098 protected Object createBody() {
099 if (mailMessage != null) {
100 return getExchange().getBinding().extractBodyFromMail(getExchange(), mailMessage);
101 }
102 return null;
103 }
104
105 @Override
106 protected void populateInitialHeaders(Map<String, Object> map) {
107 if (mailMessage != null) {
108 try {
109 map.putAll(getExchange().getBinding().extractHeadersFromMail(mailMessage));
110 } catch (MessagingException e) {
111 throw new RuntimeCamelException("Error accessing headers due to: " + e.getMessage(), e);
112 }
113 }
114 }
115
116 @Override
117 protected void populateInitialAttachments(Map<String, DataHandler> map) {
118 if (mailMessage != null) {
119 try {
120 extractAttachments(mailMessage, map);
121 } catch (Exception e) {
122 throw new RuntimeCamelException("Error populating the initial mail message attachments", e);
123 }
124 }
125 }
126
127 public void copyFrom(org.apache.camel.Message that) {
128 super.copyFrom(that);
129 if (that instanceof MailMessage) {
130 MailMessage mailMessage = (MailMessage) that;
131 this.mailMessage = mailMessage.mailMessage;
132 }
133 }
134
135 /**
136 * Parses the attachments of the given mail message and adds them to the map
137 *
138 * @param message the mail message with attachments
139 * @param map the map to add found attachments (attachmentFilename is the key)
140 */
141 protected static void extractAttachments(Message message, Map<String, DataHandler> map)
142 throws javax.mail.MessagingException, IOException {
143
144 LOG.trace("Extracting attachments +++ start +++");
145
146 Object content = message.getContent();
147 if (content instanceof Multipart) {
148 extractFromMultipart((Multipart)content, map);
149 } else if (content != null) {
150 LOG.trace("No attachments to extract as content is not Multipart: " + content.getClass().getName());
151 }
152
153 LOG.trace("Extracting attachments +++ done +++");
154 }
155
156 protected static void extractFromMultipart(Multipart mp, Map<String, DataHandler> map)
157 throws javax.mail.MessagingException, IOException {
158
159 for (int i = 0; i < mp.getCount(); i++) {
160 Part part = mp.getBodyPart(i);
161 LOG.trace("Part #" + i + ": " + part);
162
163 if (part.isMimeType("multipart/*")) {
164 LOG.trace("Part #" + i + ": is mimetype: multipart/*");
165 extractFromMultipart((Multipart)part.getContent(), map);
166 } else {
167 String disposition = part.getDisposition();
168 if (LOG.isTraceEnabled()) {
169 LOG.trace("Part #" + i + ": Disposition: " + part.getDisposition());
170 LOG.trace("Part #" + i + ": Description: " + part.getDescription());
171 LOG.trace("Part #" + i + ": ContentType: " + part.getContentType());
172 LOG.trace("Part #" + i + ": FileName: " + part.getFileName());
173 LOG.trace("Part #" + i + ": Size: " + part.getSize());
174 LOG.trace("Part #" + i + ": LineCount: " + part.getLineCount());
175 }
176
177 if (disposition != null && (disposition.equalsIgnoreCase(Part.ATTACHMENT) || disposition.equalsIgnoreCase(Part.INLINE))) {
178 // only add named attachments
179 String fileName = part.getFileName();
180 if (fileName != null) {
181 LOG.debug("Mail contains file attachment: " + fileName);
182 // Parts marked with a disposition of Part.ATTACHMENT are clearly attachments
183 CollectionHelper.appendValue(map, fileName, part.getDataHandler());
184 }
185 }
186 }
187 }
188 }
189
190 }