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    
032    /**
033     * Represents a {@link org.apache.camel.Message} for working with Mail
034     *
035     * @version $Revision:520964 $
036     */
037    public class MailMessage extends DefaultMessage {
038        private Message mailMessage;
039    
040        public MailMessage() {
041        }
042    
043        public MailMessage(Message message) {
044            this.mailMessage = message;
045        }
046    
047        @Override
048        public String toString() {
049            if (mailMessage != null) {
050                return "MailMessage: " + MailUtils.dumpMessage(mailMessage);
051            } else {
052                return "MailMessage: " + getBody();
053            }
054        }
055    
056        @Override
057        public MailExchange getExchange() {
058            return (MailExchange)super.getExchange();
059        }
060    
061        public MailMessage copy() {
062            MailMessage answer = (MailMessage)super.copy();
063            answer.mailMessage = mailMessage;
064            return answer;
065        }
066    
067        /**
068         * Returns the underlying Mail message
069         */
070        public Message getMessage() {
071            return mailMessage;
072        }
073    
074        public void setMessage(Message mailMessage) {
075            this.mailMessage = mailMessage;
076        }
077    
078        @Override
079        public Object getHeader(String name) {
080            Object answer = super.getHeader(name);
081            
082            // mimic case insensitive search of mail message getHeader
083            if (answer == null) {
084                answer = super.getHeader(name.toLowerCase());
085            }
086            return answer;
087        }
088      
089        @Override
090        public MailMessage newInstance() {
091            return new MailMessage();
092        }
093    
094        @Override
095        protected Object createBody() {
096            if (mailMessage != null) {
097                return getExchange().getBinding().extractBodyFromMail(getExchange(), mailMessage);
098            }
099            return null;
100        }
101    
102        @Override
103        protected void populateInitialHeaders(Map<String, Object> map) {
104            if (mailMessage != null) {
105                try {
106                    map.putAll(getExchange().getBinding().extractHeadersFromMail(mailMessage));
107                } catch (MessagingException e) {
108                    throw new RuntimeCamelException("Error accessing headers due to: " + e.getMessage(), e);
109                }
110            }
111        }
112    
113        @Override
114        protected void populateInitialAttachments(Map<String, DataHandler> map) {
115            if (mailMessage != null) {
116                try {
117                    extractAttachments(mailMessage, map);
118                } catch (Exception e) {
119                    throw new RuntimeCamelException("Error populating the initial mail message attachments", e);
120                }
121            }
122        }
123    
124        public void copyFrom(org.apache.camel.Message that) {
125            super.copyFrom(that);
126            if (that instanceof MailMessage) {
127                MailMessage mailMessage = (MailMessage) that;
128                this.mailMessage = mailMessage.mailMessage;
129            }
130        }
131    
132        /**
133         * Parses the attachments of the given mail message and adds them to the map
134         *
135         * @param  message  the mail message with attachments
136         * @param  map      the map to add found attachments (attachmentFilename is the key)
137         */
138        protected static void extractAttachments(Message message, Map<String, DataHandler> map)
139            throws javax.mail.MessagingException, IOException {
140    
141            Object content = message.getContent();
142            if (content instanceof Multipart) {
143                extractFromMultipart((Multipart)content, map);
144            }
145        }
146        
147        protected static void extractFromMultipart(Multipart mp, Map<String, DataHandler> map) 
148            throws javax.mail.MessagingException, IOException {
149    
150            for (int i = 0; i < mp.getCount(); i++) {
151                Part part = mp.getBodyPart(i);           
152                if (part.isMimeType("multipart/*")) {
153                    extractFromMultipart((Multipart)part.getContent(), map);
154                } else {
155                    String disposition = part.getDisposition();
156                    if (disposition != null) {
157                        if (disposition.equalsIgnoreCase(Part.ATTACHMENT) || disposition.equalsIgnoreCase(Part.INLINE)) {
158                            // only add named attachments
159                            if (part.getFileName() != null) {
160                                // Parts marked with a disposition of Part.ATTACHMENT
161                                // are clearly attachments
162                                CollectionHelper.appendValue(map, part.getFileName(), part.getDataHandler());
163                            }
164                        }
165                    }
166                }
167            }
168        }    
169    
170    }