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/*
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franta-hg@72
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* SONEWS News Server
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franta-hg@72
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* see AUTHORS for the list of contributors
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franta-hg@72
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*
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* This program is free software: you can redistribute it and/or modify
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franta-hg@72
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* it under the terms of the GNU General Public License as published by
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franta-hg@72
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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franta-hg@72
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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franta-hg@72
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* GNU General Public License for more details.
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franta-hg@72
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*
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* You should have received a copy of the GNU General Public License
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franta-hg@72
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sonews.storage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Enumeration;
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import javax.mail.Header;
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import javax.mail.MessagingException;
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import javax.mail.Multipart;
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import javax.mail.Session;
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import javax.mail.internet.InternetAddress;
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import javax.mail.internet.MimeBodyPart;
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import javax.mail.internet.MimeMessage;
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import javax.mail.internet.MimeMultipart;
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/**
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* This is MimeMessage which enables custom Message-ID header
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* (this header will not be overwritten by the default one like in MimeMessage).
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*
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* Also add header and body separate serialization.
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*
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* And can be deserialized from SQL ResultSet
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*
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* @author František Kučera (frantovo.cz)
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*/
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public class DrupalMessage extends MimeMessage {
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private static final String MESSAGE_ID_HEADER = "Message-ID";
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private static final String CRLF = "\r\n";
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public static final String CHARSET = "UTF-8";
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private static final String XHTML_CONTENT_TYPE = "text/html; charset=" + CHARSET;
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private String messageID;
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/**
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* Constructs MIME message from SQL result.
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* @param rs ResultSet containing message data. No {@link ResultSet#next()} will be called, just values from current row will be read.
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* @param constructBody true if whole message should be constructed | false if we need only message headers (body will be dummy).
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*/
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public DrupalMessage(ResultSet rs, String myDomain, boolean constructBody) throws SQLException, UnsupportedEncodingException, MessagingException {
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super(Session.getDefaultInstance(System.getProperties()));
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addHeader("Message-id", constructMessageId(rs.getInt("id"), rs.getInt("group_id"), rs.getString("group_name"), myDomain));
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addHeader("Newsgroups", rs.getString("group_name"));
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setFrom(new InternetAddress("anonym@example.com", rs.getString("sender_name")));
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setSubject(rs.getString("subject"));
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setSentDate(new Date(rs.getLong("created")));
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Integer parentID = rs.getInt("parent_id");
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if (parentID != null && parentID > 0) {
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String parentMessageID = constructMessageId(parentID, rs.getInt("group_id"), rs.getString("group_name"), myDomain);
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addHeader("In-Reply-To", parentMessageID);
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addHeader("References", parentMessageID);
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}
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if (constructBody) {
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Multipart multipart = new MimeMultipart("alternative");
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setContent(multipart);
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/** TODO: Plain text part */
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MimeBodyPart textPart = new MimeBodyPart();
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multipart.addBodyPart(textPart);
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textPart.setText(readPlainText(rs));
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/** TODO: XHTML part */
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MimeBodyPart htmlPart = new MimeBodyPart();
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multipart.addBodyPart(htmlPart);
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htmlPart.setContent(readXhtmlText(rs), XHTML_CONTENT_TYPE);
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} else {
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setText("");
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}
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}
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private String readPlainText(ResultSet rs) {
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/**
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* TODO: převést na prostý text
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*/
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return "TODO: obyčejný text";
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}
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private String readXhtmlText(ResultSet rs) {
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/**
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* TODO: převést na XHTML
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*/
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return "<html><body>TODO: tady bude nějaký <strong>(X)HTML</strong></body></html>";
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}
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private static String constructMessageId(int articleID, int groupID, String groupName, String domainName) {
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StringBuilder sb = new StringBuilder();
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sb.append("<");
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sb.append(articleID);
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sb.append("-");
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sb.append(groupID);
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sb.append("-");
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sb.append(groupName);
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sb.append("@");
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sb.append(domainName);
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sb.append(">");
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return sb.toString();
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}
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@Override
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public void setHeader(String name, String value) throws MessagingException {
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super.setHeader(name, value);
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if (MESSAGE_ID_HEADER.equalsIgnoreCase(name)) {
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messageID = value;
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}
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}
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@Override
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public final void addHeader(String name, String value) throws MessagingException {
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super.addHeader(name, value);
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if (MESSAGE_ID_HEADER.equalsIgnoreCase(name)) {
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messageID = value;
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}
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}
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@Override
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public void removeHeader(String name) throws MessagingException {
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super.removeHeader(name);
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if (MESSAGE_ID_HEADER.equalsIgnoreCase(name)) {
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messageID = null;
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}
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}
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public void setMessageID(String messageID) {
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this.messageID = messageID;
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}
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@Override
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protected void updateMessageID() throws MessagingException {
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if (messageID == null) {
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super.updateMessageID();
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} else {
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setHeader(MESSAGE_ID_HEADER, messageID);
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}
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}
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/**
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* Call {@link #saveChanges()} before this method, if you want all headers including such ones like:
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*
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* <pre>MIME-Version: 1.0
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*Content-Type: multipart/alternative;</pre>
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*
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* @return serialized headers
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* @throws MessagingException if getAllHeaders() fails
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*/
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public String getHeaders() throws MessagingException {
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StringBuilder sb = new StringBuilder();
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for (Enumeration eh = getAllHeaderLines(); eh.hasMoreElements();) {
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sb.append(eh.nextElement());
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sb.append(CRLF);
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}
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return sb.toString();
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}
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public byte[] getBody() throws IOException, MessagingException {
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saveChanges();
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ArrayList<String> skipHeaders = new ArrayList<String>();
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for (Enumeration eh = getAllHeaders(); eh.hasMoreElements();) {
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Header h = (Header) eh.nextElement();
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skipHeaders.add(h.getName());
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}
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ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
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writeTo(baos, skipHeaders.toArray(new String[skipHeaders.size()]));
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return baos.toByteArray();
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}
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}
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