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POcannot parse headers to create MIME message
 

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  1. POcannot parse headers to create MIME message
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    <p>I'm trying to send messages only to myself, not out to or through the intertubes, based on the <a href="http://commons.apache.org/net/" rel="nofollow">Apache NNTP API</a>. The particular class involved takes an <a href="http://en.wikipedia.org/wiki/Nntp" rel="nofollow">NNTP message</a> and attempts to parse it into a regular MIME type message as so:</p> <pre><code>package net.bounceme.dur.nntp; import java.util.Arrays; import java.util.Enumeration; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import java.util.Properties; import javax.mail.Address; import javax.mail.Header; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.NoSuchProviderException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; public class MessageSender { private final static Logger LOG = Logger.getLogger(MessageSender.class.getName()); private String header; private String body; private Properties p; private Session session; private MimeMessage message; private MessageSender() { } public MessageSender(Properties p, String... s) throws Exception { header = s[0]; body = s[1]; this.p = p; populate(); } private void populate() throws Exception { String lines[] = header.split("\\n"); session = Session.getDefaultInstance(p, null); message = new MimeMessage(session); LOG.fine("\n\n\n\nnew message************\n\n\n\n"); for (String s : lines) { if (!s.contains("comp.lang.java.help")) { message.addHeaderLine(s); } } message.setContent(message, body); String recipient = p.getProperty("recipient"); message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipient)); try { send(); } catch (javax.mail.internet.ParseException e) { LOG.warning(e.toString()); } catch (com.sun.mail.smtp.SMTPAddressFailedException e) { LOG.warning(e.toString()); List&lt;Address&gt; addresses = Arrays.asList(message.getAllRecipients()); for (Address a : addresses) { LOG.info(a.toString()); } } } private void send() throws Exception { String protocol = p.getProperty("protocol"); String host = p.getProperty("host"); int port = Integer.valueOf(p.getProperty("port")); String username = p.getProperty("username"); String password = p.getProperty("password"); Transport transport = session.getTransport(protocol); LOG.log(Level.FINE, "{0}{1}{2}{3}{4}", new Object[]{protocol, host, port, username, password}); Enumeration enumOfHeaders = message.getAllHeaders(); while (enumOfHeaders.hasMoreElements()) { Header h = (Header) enumOfHeaders.nextElement(); LOG.log(Level.FINE, "\n\n\nHEADER\n{0}\n{1}", new Object[]{h.getName(), h.getValue()}); } transport.connect(host, port, username, password); transport.sendMessage(message, message.getAllRecipients()); } } </code></pre> <p>But I'm having trouble with the headers:</p> <pre><code>init: Deleting: /home/thufir/NetBeansProjects/apache_nntp/build/built-jar.properties deps-jar: Updating property file: /home/thufir/NetBeansProjects/apache_nntp/build/built-jar.properties Compiling 1 source file to /home/thufir/NetBeansProjects/apache_nntp/build/classes compile: run: 200 Leafnode NNTP Daemon, version 1.11.8 running at localhost (my fqdn: dur.bounceme.net) GROUP comp.lang.java.help 211 35 3 37 comp.lang.java.help group selected HEAD 3 221 3 &lt;7e60dce5-09d7-4cee-bbc1-137207f03dd0@googlegroups.com&gt; article retrieved - head follows BODY 3 222 3 &lt;7e60dce5-09d7-4cee-bbc1-137207f03dd0@googlegroups.com&gt; article retrieved - body follows Feb 24, 2013 3:05:04 AM net.bounceme.dur.nntp.MessageSender populate WARNING: javax.mail.internet.ParseException: Expected '/', got wrote HEAD 4 221 4 &lt;kfpdt3$5g9$1@dont-email.me&gt; article retrieved - head follows BODY 4 222 4 &lt;kfpdt3$5g9$1@dont-email.me&gt; article retrieved - body follows Exception in thread "main" javax.mail.SendFailedException: Invalid Addresses; nested exception is: com.sun.mail.smtp.SMTPAddressFailedException: 450 4.1.8 &lt;markspace@nospam.nospam&gt;: Sender address rejected: Domain not found at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1863) at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1119) at net.bounceme.dur.nntp.MessageSender.send(MessageSender.java:80) at net.bounceme.dur.nntp.MessageSender.populate(MessageSender.java:54) at net.bounceme.dur.nntp.MessageSender.&lt;init&gt;(MessageSender.java:35) at net.bounceme.dur.nntp.ArticleReader.&lt;init&gt;(ArticleReader.java:28) at net.bounceme.dur.nntp.Driver.&lt;init&gt;(Driver.java:13) at net.bounceme.dur.nntp.Driver.main(Driver.java:17) Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 450 4.1.8 &lt;markspace@nospam.nospam&gt;: Sender address rejected: Domain not found at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1730) ... 7 more Java Result: 1 BUILD SUCCESSFUL (total time: 6 seconds) </code></pre> <p>Now, I appreciate that there's no domain for the sender. Nonetheless, I want to go ahead and send the message. Do I need to change the sender? I'd like to muck with the headers as little as possible.</p> <p>If there's a better way to convert NNTP --> MIME Message I'm certainly open to suggestions. I'm already dropping the newsgroup header as that seems problematic for reasons I don't understand. Basically, I just can't figure out how to parse these headers so that they create a valid message to send.</p>
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