src/org/ibex/mail/MailingList.java

   1 // Copyright 2000-2005 the Contributors, as shown in the revision logs.
   2 // Licensed under the Apache Public Source License 2.0 ("the License").
   3 // You may not use this file except in compliance with the License.
   4
   5 package org.ibex.mail;
   6 import org.ibex.util.*;
   7 import org.ibex.io.*;
   8 import org.ibex.mail.target.*;
   9 import org.ibex.mail.protocol.*;
  10 import java.util.*;
  11 import java.io.*;
  12 import java.net.*;
  13 import javax.servlet.*;
  14 import javax.servlet.http.*;
  15
  16 // FEATURE: store interesting/important stuff in sqlite
  17 public class MailingList extends Mailbox.MailboxWrapper {
  18
  19     // FIXME
  20     public MailingList(File path, FileBasedMailbox fbm) throws IOException {
  21         super(fbm);
  22         this.path = path;
  23         this.mailbox = fbm;
  24         properties = new PropertiesFile(new File(path.getCanonicalPath() + File.separatorChar + "properties"));
  25         address = new Address(properties.get("address"));
  26         homepage = properties.get("homepage");
  27         one_line_description = properties.get("description");
  28         message_footer = properties.get("footer");
  29     }
  30
  31     public void banner(HttpServletRequest request, HttpServletResponse response) throws IOException {
  32         String basename = request.getRequestURL()+"";
  33         PrintWriter pw = new PrintWriter(response.getWriter());
  34         /*
  35         pw.println("<html>");
  36         pw.println("  <head>");
  37         pw.println("   <style>");
  38         pw.println("     TH, TD, P, LI, BODY {");
  39         pw.println("         font-family: helvetica, verdana, arial, sans-serif;");
  40         pw.println("         font-size: 12px;  ");
  41         pw.println("         text-decoration:none; ");
  42         pw.println("     }");
  43         pw.println("   </style>");
  44         pw.println("  </head>");
  45         pw.println("  <body>");
  46         */
  47         String confirm = request.getParameter("confirm");
  48         if (confirm != null) {
  49             Subscribe sub = (Subscribe)Confirmation.decode(confirm, secret, new Date());
  50             String email = sub.email;
  51             synchronized(this) {
  52                 String path = this.path.getAbsolutePath() + File.separatorChar + "subscribers" + File.separatorChar+sub.email;
  53                 if (sub.un) new File(path).delete();
  54                 else {
  55                     Log.warn(null, "creating " + path);
  56                     new FileOutputStream(path).close();
  57                 }
  58             }
  59             pw.println("    <b>successfully "+sub.adj+"d " + email + " to " + properties.get("address"));
  60         } else {
  61             String action = request.getParameter("action");
  62             String email = request.getParameter("email");
  63             if (action != null) {
  64                 Subscribe sub = new Subscribe(email, request.getRequestURL().toString(), action.equals("unsubscribe"));
  65                 sub.signAndSend(new Address(properties.get("owner")),
  66                                 secret, new Date());
  67                 pw.println("a confirmation email has been sent to " + email +
  68                            "; click the enclosed link to confirm your request to " + action);
  69             } else {
  70                 pw.println("<table width=100% border=0 cellpadding=0 cellspacing=0><tr><td>");
  71                 pw.println("    <b>"+properties.get("address")+"</b><br> ");
  72                 pw.println("    <i>"+properties.get("description")+"</i> ");
  73                 pw.println("</td><td align=right>");
  74                 pw.println("<i>access via:</i> ");
  75                 if (path.getAbsolutePath().startsWith("/afs/"))
  76                     pw.println("<a target=_top href='file:" + path.getAbsolutePath() +"'>[AFS]</a> ");
  77                 pw.println("<a target=_top href="+properties.get("nntp")+">[NNTP]</a></tt>");
  78                 pw.println("<a target=_top href='mailto:"+properties.get("address")+"'>[SMTP]</a></tt>");
  79                 pw.println("<a target=_top href='"+request.getRequestURL()+"'>[HTTP]</a></tt>");
  80                 pw.println("</td></tr><tr><td colspan=2 align=right>");
  81                 pw.println("    <form action='"+basename+"' method=post name=form1 target=_top>");
  82                 pw.println("       <input type=text width=100 value='your@email.com' name=email>");
  83                 pw.println("       <input type=hidden name=frame value=banner>");
  84                 pw.println("       <select name=action onchange='form1.submit()'>");
  85                 pw.println("          <option>--choose action--</option>");
  86                 pw.println("          <option>subscribe</option>");
  87                 pw.println("          <option>unsubscribe</option>");
  88                 pw.println("          <option>preferences</option>");
  89                 pw.println("       </select>");
  90                 pw.println("    </form>");
  91                 pw.println("</td></tr></table>");
  92             }
  93         }
  94         //pw.println("  </body>");
  95         //pw.println("</html>");
  96         pw.flush();
  97     }
  98
  99     public class Subscribe extends Confirmation {
 100         public String email;
 101         public String basename;
 102         public boolean un;
 103         public String adj;
 104         public Subscribe(String email, String basename, boolean un) {
 105             super(new Address(email), new Date().getTime() + (1000 * 60 * 60 * 24));
 106             this.email = email;
 107             this.basename = basename;
 108             this.un = un;
 109             this.adj = un ? "unsubscribe" : "subscribe";
 110         }
 111         public String getDescription() { return adj + " " + email + " to " + properties.get("address"); }
 112         public String getURL(String tail) { return basename + "?frame=banner&confirm="+URLEncoder.encode(tail); }
 113     }
 114
 115     private final File             path;
 116     private final PropertiesFile   properties;
 117     private final FileBasedMailbox mailbox;
 118
 119     private final long             secret               = new Random().nextLong();
 120     public  final Address          address;
 121     public        String           homepage;
 122
 123     public        String           one_line_description;
 124     public        String           message_footer;
 125
 126     public        int              bounceThreshhold     = 10;
 127
 128     public static class Subscriber {
 129         public Subscriber(Address a) { this.address = a; }
 130         public  Address          address;
 131     }
 132
 133
 134     // Pooling //////////////////////////////////////////////////////////////////////////////
 135
 136     public Iterable<Subscriber> subscribers() {
 137         return new Iterable<Subscriber>() {
 138             public java.util.Iterator<Subscriber> iterator() {
 139                 final File subdir = new File(path.getAbsolutePath() + File.separatorChar + "subscribers");
 140                 if (!subdir.exists()) subdir.mkdirs();
 141                 final String[] subs = !subdir.isDirectory() ? new String[0] : subdir.list();
 142                 return new java.util.Iterator<Subscriber>() {
 143                     int i=0;
 144                     Subscriber prep = null;
 145                     public void remove() {
 146                         try {
 147                             new File(subdir.getAbsolutePath() + File.separatorChar + subs[i++]).delete();
 148                         } catch (Exception e) {
 149                             Log.error(MailingList.class, e);
 150                         }
 151                     }
 152                     public boolean hasNext() { if (prep==null) prep = next(); return prep!=null; }
 153                     public Subscriber next() {
 154                         if (prep!=null) { Subscriber ret = prep; prep = null; return ret; }
 155                         while(i<subs.length) {
 156                             if (subs[i].indexOf('@')==-1) i++;
 157                             else try {
 158                                     return new Subscriber(new Address(subs[i++]));
 159                                 } catch (Exception e) {
 160                                     Log.warn(MailingList.class, e);
 161                                     continue;
 162                                 }
 163                         }
 164                         return null;
 165                     }
 166                 };
 167             }
 168         };
 169     }
 170     /*
 171     private static HashMap<String,MailingList> cache = new HashMap<String,MailingList>();
 172     public static MailingList getMailingList(String path) throws IOException { return getMailingList(new File(path)); }
 173     public static MailingList getMailingList(File path) throws IOException {
 174         if (!path.exists()) path.mkdirs();
 175         MailingList ret = cache.get(path.getCanonicalPath());
 176         if (ret==null) cache.put(path.getCanonicalPath(), ret = new MailingList(path));
 177         return ret;
 178     }
 179     */
 180     // Methods //////////////////////////////////////////////////////////////////////////////
 181
 182     public void add(Message message) {
 183         try {
 184             accept(message);
 185         } catch (Exception e) { throw new RuntimeException(e); }
 186     }
 187     public void add(Message message, int flags) { add(message); /* FIXME: flags? */ }
 188     public void accept(Message m) throws MailException {
 189         try {
 190             StringBuffer buf = new StringBuffer();
 191             m.getBody().getStream().transcribe(buf);
 192             Headers head = new Headers(m.headers,
 193                                        new String[] {
 194                                            "List-Id", one_line_description + "<"+address+">",
 195                                            "Subject", properties.get("prefix") + " " + m.headers.get("Subject")
 196                                        });
 197
 198             m = Message.newMessage(Fountain.Util.concat(new Fountain[] { head,
 199                                                                          Fountain.Util.create("\r\n"),
 200                                                                          Fountain.Util.create(buf.toString()) }));
 201             Log.warn(MailingList.class, "archiving list message " + m.subject);
 202             mailbox.accept(m);
 203
 204             for(Subscriber s : subscribers()) try {
 205                     Log.warn(MailingList.class, "  trying " + s.address);
 206                     SMTP.enqueue(m.withEnvelope(m.envelopeFrom, s.address));
 207                     Log.warn("[list]", "successfully sent to " + s);
 208                 } catch (Exception e2) { Log.error("[list]", e2); }
 209         } catch (Exception e) { throw new RuntimeException(e); }
 210     }
 211
 212     //public Filter[]     filters  = new Filter[0];
 213     //public static class Filter {
 214     //    public class EmergencyModerationFilter { }
 215     //    public class MaximumLengthFilter { }
 216     //    public class SpamFilter { }
 217     //    public class MIMETypes { }
 218     //    public class MungeReplyTo { }
 219     //    public class AnonymizeSender { public boolean uncorrelated; }
 220     //}
 221 }
 222
 223     //public static enum UserType         { Administrator, Moderator, Member }
 224     //public static enum SubscriptionType { All, None, Digest, MimeDigest }
 225     //public static enum Visibility       { Members, Public, Nobody }
 226     //public static enum Action           { Accept, Hold, Reject }
 227     //public        Visibility       listVisibility       = Visibility.Nobody;
 228     //public        Visibility       membershipVisibility = Visibility.Nobody;
 229     //public        Visibility       archiveVisibility    = Visibility.Members;
 230     //public        Action           defaultPostingType   = Action.Hold;
 231
 232         //public  Action           posting = Action.Accept;
 233         //public  UserType         type = UserType.Member;
 234         //public  SubscriptionType subscription = SubscriptionType.All;
 235         //public  boolean          send_copy_of_own_post = false;
 236         //public  boolean          filter_duplicates_when_ccd = true;