MultipartGenerator


1   /**
2    * Title:        Oyster Project
3    * Description:  Creating S/MIME email transport capabilities.
4    * Copyright:    Copyright (c) 2001
5    * @Author       Vladimir Radisic
6    * @Version      2.1.5
7    */
8   
9   package org.enhydra.oyster.mail;
10  
11  import  org.enhydra.oyster.exception.SMIMEException;
12  import  org.enhydra.oyster.activation.StreamDataSource;
13  import  javax.mail.internet.MimeBodyPart  ;
14  import  javax.mail.internet.MimeMultipart  ;
15  import  org.enhydra.oyster.util.HtmlAnalyzer;
16  import  java.io.File  ;
17  import  java.io.InputStream  ;
18  import  java.util.Vector  ;
19  import  javax.activation.DataHandler  ;
20  import  javax.activation.FileDataSource  ;
21  
22  /**
23   * Methods from this class are used in creation of specific MimeMultipart objects
24   * other than default multipart/mixed.
25   */
26  public class MultipartGenerator
27  {
28  
29    /**
30     * Returns created MimeMultipart for text/html message with html code given
31     * through InputStream. This method creates html content withouth regarding and
32     * resolving html code resource references. Returned MimeMultipart has
33     * content-type "multipart/alternative". Text plain interpretation of html
34     * message, used in "multipart/alternative" MimeMultipart, is generated
35     * automatically according to given html code.
36     * @param content0 html code in form of InputStream
37     * @return MimeMultipart with Content-Type: "multipart/alternative".
38     * @exception SMIMEException caused by non SMIMEException which is MessagingException
39     */
40    public static MimeMultipart   getHtmlMultipart(InputStream   content0)
41        throws SMIMEException {
42  
43      return getHtmlMultipart(content0, null);
44    }
45  
46  
47    /**
48     * Returns created MimeMultipart for text/html message with html code given
49     * through InputStream. This method creates html content withouth regarding and
50     * resolving html code resource references. Returned MimeMultipart has
51     * content-type "multipart/alternative". Text plain interpretation of html
52     * message, used in "multipart/alternative" MimeMultipart, is generated
53     * according to given external prepared text message (argument
54     * externalPlainText0) or automatically according to given html code if
55     * argument externalPlainText0 has value null.
56     * @param content0 html code in form of InputStream
57     * @param externalPlainText0 external plain text message represented as String.
58     * If this argument has value null then autogeneration of text/plain message is
59     * performed according to passed html code (content0 argument).
60     * @return MimeMultipart with Content-Type: "multipart/alternative".
61     * @exception SMIMEException caused by non SMIMEException which is MessagingException
62     */
63    public static MimeMultipart   getHtmlMultipart(InputStream   content0, String   externalPlainText0)
64        throws SMIMEException {
65  
66      MimeMultipart   alternativePart = new MimeMultipart  ("alternative");
67      try {
68        HtmlAnalyzer ha = new HtmlAnalyzer(content0, externalPlainText0);
69  
70        MimeBodyPart   textBody = new MimeBodyPart  ();
71        textBody.setText(ha.getPlainText(), "ISO-8859-1");
72        MimeBodyPart   htmlBody = new MimeBodyPart  ();
73        htmlBody.setContent(ha.getHtmlText(),"text/html");
74  
75        alternativePart.addBodyPart(textBody);
76        alternativePart.addBodyPart(htmlBody);
77      }
78      catch(Exception   e) {
79        throw SMIMEException.getInstance( "org.enhydra.oyster.mail.MultipartGenerator",
80                                          e, "getHtmlMultipart");
81      }
82      return alternativePart;
83    }
84  
85  
86    /**
87     * Returns created MimeMultipart for text/html message with html code given
88     * through InputStream, path for resolving relative path of resources defined in
89     * html code and array of resources given through InputStream. This method
90     * creates html content with resolving html code resource references. Returned
91     * MimeMultipart has content-type "multipart/related", and inside itself,
92     * this MimeMultipart convey BodyParts with embeded resources, and one BodyPart
93     * which holds MimeMultipart with Content-Type "multipart/alternative".
94     * text/plain interpretation of html message, used in "multipart/alternative"
95     * MimeMultipart, is generated automatically according to given html code.
96     * @param content0 html code in form of InputStream
97     * @param path0 common path for resolving relative referenced resources in html
98     * code atributes of type "src" and "background".
99     * @param resources0 array of resources given as array of InputStream. For more
100    * information refer to setContent methods of classes from package:
101    * org.enhydra.oyster.smime
102    * @return MimeMultipart with Content-Type: "multipart/related".
103    * @exception SMIMEException caused by non SMIMEException which is MessagingException
104    */
105   public static MimeMultipart   getHtmlMultipart( InputStream   content0,
106       String   path0,
107       InputStream  [] resources0 )
108       throws SMIMEException {
109     return getHtmlMultipart(content0, path0, resources0, null);
110   }
111 
112 
113   /**
114    * Returns created MimeMultipart for text/html message with html code given
115    * through InputStream, path for resolving relative path of resources defined in
116    * html code and array of resources given through InputStream. This method
117    * creates html content with resolving html code resource references. Returned
118    * MimeMultipart has content-type "multipart/related", and inside itself,
119    * this MimeMultipart convey BodyParts with embeded resources, and one BodyPart
120    * which holds MimeMultipart with Content-Type "multipart/alternative". Text
121    * plain interpretation of html message, used in "multipart/alternative"
122    * MimeMultipart, is generated according to given external prepared text
123    * message (argument externalPlainText0) or automatically according to given
124    * html code if argument externalPlainText0 has value null.
125    * @param content0 html code in form of InputStream
126    * @param path0 common path for resolving relative referenced resources in html
127    * code atributes of type "src" and "background".
128    * @param resources0 array of resources given as array of InputStream. For more
129    * information refer to setContent methods of classes from package:
130    * org.enhydra.oyster.smime
131    * @param externalPlainText0 external plain/text message represented as String.
132    * If this argument has value null then autogeneration of text/plain message is
133    * performed according to passed html code (content0 argument).
134    * @return MimeMultipart with Content-Type: "multipart/related".
135    * @exception SMIMEException caused by non SMIMEException which is MessagingException
136    */
137   public static MimeMultipart   getHtmlMultipart( InputStream   content0,
138       String   path0,
139       InputStream  [] resources0,
140       String   externalPlainText0 )
141       throws SMIMEException {
142     try {
143       HtmlAnalyzer ha = new HtmlAnalyzer(content0, path0, externalPlainText0);
144       MimeBodyPart   textBody = new MimeBodyPart  ();
145       textBody.setText(ha.getPlainText(), "ISO-8859-1");
146       MimeBodyPart   htmlBody = new MimeBodyPart  ();
147       htmlBody.setContent(ha.getHtmlText(),"text/html");
148 
149       MimeMultipart   alternativePart = new MimeMultipart  ("alternative");
150       alternativePart.addBodyPart(textBody);
151       alternativePart.addBodyPart(htmlBody);
152 
153       MimeMultipart   relatedPart = null;
154       Vector   vAddress = ha.getSwappedAdresses();
155       if (vAddress != null) {
156         relatedPart = new MimeMultipart  ("related");
157         MimeBodyPart   alternativeBody = new MimeBodyPart  ();
158         alternativeBody.setContent(alternativePart);
159         relatedPart.addBodyPart( alternativeBody );
160 
161         for( int i = 0; i < vAddress.size(); i=i+2 ) {
162           try {
163             if(vAddress.elementAt(i) instanceof File  ) {
164               MimeBodyPart   mbp = new MimeBodyPart  ();
165               File   fn = (File  )vAddress.elementAt(i);
166               FileDataSource   fd = new FileDataSource  (fn);
167               mbp.setDataHandler(new DataHandler  (fd));
168               mbp.setFileName(fn.getName());
169               mbp.addHeader("Content-ID","<" + vAddress.elementAt(i+1) + ">");
170               relatedPart.addBodyPart(mbp);
171             }
172             else {
173               MimeBodyPart   mbp = new MimeBodyPart  ();
174               int index = Integer.parseInt(
175                   ((String  )vAddress.elementAt(i)).substring(5,8));
176               String   fileName = ((String  )vAddress.elementAt(i)).substring(8);
177               mbp.setDataHandler( new DataHandler  (new StreamDataSource(
178                   resources0[index], fileName )) );
179               mbp.setFileName(fileName);
180               mbp.addHeader("Content-ID","<" + vAddress.elementAt(i+1) + ">");
181               relatedPart.addBodyPart(mbp);
182             }
183           }
184           catch(Exception   e) {
185             continue; // Forces that adding of bodyparts carry on if error happened in one of the adding
186           }
187         }
188         if(relatedPart.getCount() == 0)
189           return alternativePart;
190         return relatedPart;
191       }
192       else
193         return alternativePart;
194     }
195     catch(Exception   e) {
196       throw SMIMEException.getInstance( "org.enhydra.oyster.mail.MultipartGenerator",
197                                         e, "getHtmlMultipart");
198     }
199   }
200 
201 }
202
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