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 // TODO: RFC 2369
  17 // TODO: RFC 2919
  18
  19 // FEATURE: store interesting/important stuff in sqlite
  20 public class MailingList extends Mailbox.MailboxWrapper {
  21
  22     // FIXME
  23     public MailingList(File path, FileBasedMailbox fbm) throws IOException {
  24         super(fbm);
  25         this.path = path;
  26         this.mailbox = fbm;
  27         properties = new PropertiesFile(new File(path.getCanonicalPath() + File.separatorChar + "properties"));
  28         address = new Address(properties.get("address"));
  29         homepage = properties.get("homepage");
  30         one_line_description = properties.get("description");
  31         message_footer = properties.get("footer");
  32     }
  33
  34     public void banner(HttpServletRequest request, HttpServletResponse response) throws IOException {
  35         String basename = request.getRequestURL()+"";
  36         PrintWriter pw = new PrintWriter(response.getWriter());
  37         /*
  38         pw.println("<html>");
  39         pw.println("  <head>");
  40         pw.println("   <style>");
  41         pw.println("     TH, TD, P, LI, BODY {");
  42         pw.println("         font-family: helvetica, verdana, arial, sans-serif;");
  43         pw.println("         font-size: 12px;  ");
  44         pw.println("         text-decoration:none; ");
  45         pw.println("     }");
  46         pw.println("   </style>");
  47         pw.println("  </head>");
  48         pw.println("  <body>");
  49         */
  50         String confirm = request.getParameter("confirm");
  51         if (confirm != null) {
  52             Subscribe sub = (Subscribe)Confirmation.decode(confirm, secret, new Date());
  53             String email = sub.email;
  54             synchronized(this) {
  55                 String path = this.path.getAbsolutePath() + File.separatorChar + "subscribers" + File.separatorChar+sub.email;
  56                 if (sub.un) new File(path).delete();
  57                 else {
  58                     Log.warn(null, "creating " + path);
  59                     new FileOutputStream(path).close();
  60                 }
  61             }
  62             pw.println("    <b>successfully "+sub.adj+"d " + email + " to " + properties.get("address"));
  63         } else {
  64             String action = request.getParameter("action");
  65             String email = request.getParameter("email");
  66             if (action != null) {
  67                 Subscribe sub = new Subscribe(email, request.getRequestURL().toString(), action.equals("unsubscribe"));
  68                 sub.signAndSend(new Address(properties.get("owner")),
  69                                 secret, new Date());
  70                 pw.println("a confirmation email has been sent to " + email +
  71                            "; click the enclosed link to confirm your request to " + action);
  72             } else {
  73                 pw.println("<table width=100% border=0 cellpadding=0 cellspacing=0><tr><td>");
  74                 pw.println("    <b>"+properties.get("address")+"</b><br> ");
  75                 pw.println("    <i>"+properties.get("description")+"</i> ");
  76                 pw.println("</td><td align=right>");
  77                 pw.println("<i>access via:</i> ");
  78                 if (path.getAbsolutePath().startsWith("/afs/"))
  79                     pw.println("<a target=_top href='file:" + path.getAbsolutePath() +"'>[AFS]</a> ");
  80                 pw.println("<a target=_top href="+properties.get("nntp")+">[NNTP]</a></tt>");
  81                 pw.println("<a target=_top href='mailto:"+properties.get("address")+"'>[SMTP]</a></tt>");
  82                 pw.println("<a target=_top href='"+request.getRequestURL()+"'>[HTTP]</a></tt>");
  83                 pw.println("</td></tr><tr><td colspan=2 align=right>");
  84                 pw.println("    <form action='"+basename+"' method=post name=form1 target=_top>");
  85                 pw.println("       <input type=text width=100 value='your@email.com' name=email>");
  86                 pw.println("       <input type=hidden name=frame value=banner>");
  87                 pw.println("       <select name=action onchange='form1.submit()'>");
  88                 pw.println("          <option>--choose action--</option>");
  89                 pw.println("          <option>subscribe</option>");
  90                 pw.println("          <option>unsubscribe</option>");
  91                 pw.println("          <option>preferences</option>");
  92                 pw.println("       </select>");
  93                 pw.println("    </form>");
  94                 pw.println("</td></tr></table>");
  95             }
  96         }
  97         //pw.println("  </body>");
  98         //pw.println("</html>");
  99         pw.flush();
 100     }
 101
 102     public class Subscribe extends Confirmation {
 103         public String email;
 104         public String basename;
 105         public boolean un;
 106         public String adj;
 107         public Subscribe(String email, String basename, boolean un) {
 108             super(new Address(email), new Date().getTime() + (1000 * 60 * 60 * 24));
 109             this.email = email;
 110             this.basename = basename;
 111             this.un = un;
 112             this.adj = un ? "unsubscribe" : "subscribe";
 113         }
 114         public String getDescription() { return adj + " " + email + " to " + properties.get("address"); }
 115         public String getURL(String tail) { return basename + "?frame=banner&confirm="+URLEncoder.encode(tail); }
 116     }
 117
 118     private final File             path;
 119     private final PropertiesFile   properties;
 120     private final FileBasedMailbox mailbox;
 121
 122     private final long             secret               = new Random().nextLong();
 123     public  final Address          address;
 124     public        String           homepage;
 125
 126     public        String           one_line_description;
 127     public        String           message_footer;
 128
 129     public        int              bounceThreshhold     = 10;
 130
 131     public static class Subscriber {
 132         public Subscriber(Address a) { this.address = a; }
 133         public  Address          address;
 134     }
 135
 136
 137     // Pooling //////////////////////////////////////////////////////////////////////////////
 138
 139     public Iterable<Subscriber> subscribers() {
 140         return new Iterable<Subscriber>() {
 141             public java.util.Iterator<Subscriber> iterator() {
 142                 final File subdir = new File(path.getAbsolutePath() + File.separatorChar + "subscribers");
 143                 if (!subdir.exists()) subdir.mkdirs();
 144                 final String[] subs = !subdir.isDirectory() ? new String[0] : subdir.list();
 145                 return new java.util.Iterator<Subscriber>() {
 146                     int i=0;
 147                     Subscriber prep = null;
 148                     public void remove() {
 149                         try {
 150                             new File(subdir.getAbsolutePath() + File.separatorChar + subs[i++]).delete();
 151                         } catch (Exception e) {
 152                             Log.error(MailingList.class, e);
 153                         }
 154                     }
 155                     public boolean hasNext() { if (prep==null) prep = next(); return prep!=null; }
 156                     public Subscriber next() {
 157                         if (prep!=null) { Subscriber ret = prep; prep = null; return ret; }
 158                         while(i<subs.length) {
 159                             if (subs[i].indexOf('@')==-1) i++;
 160                             else try {
 161                                     return new Subscriber(new Address(subs[i++]));
 162                                 } catch (Exception e) {
 163                                     Log.warn(MailingList.class, e);
 164                                     continue;
 165                                 }
 166                         }
 167                         return null;
 168                     }
 169                 };
 170             }
 171         };
 172     }
 173     /*
 174     private static HashMap<String,MailingList> cache = new HashMap<String,MailingList>();
 175     public static MailingList getMailingList(String path) throws IOException { return getMailingList(new File(path)); }
 176     public static MailingList getMailingList(File path) throws IOException {
 177         if (!path.exists()) path.mkdirs();
 178         MailingList ret = cache.get(path.getCanonicalPath());
 179         if (ret==null) cache.put(path.getCanonicalPath(), ret = new MailingList(path));
 180         return ret;
 181     }
 182     */
 183     // Methods //////////////////////////////////////////////////////////////////////////////
 184
 185     public void add(Message message) {
 186         try {
 187             accept(message);
 188         } catch (Exception e) { throw new RuntimeException(e); }
 189     }
 190     public void add(Message message, int flags) { add(message); /* FIXME: flags? */ }
 191     public void accept(Message m) throws MailException {
 192         try {
 193             StringBuffer buf = new StringBuffer();
 194             m.getBody().getStream().transcribe(buf);
 195             Headers head = new Headers(m.headers,
 196                                        new String[] {
 197                                            "List-Id", one_line_description + "<"+address+">",
 198                                            "Subject", properties.get("prefix") + " " + m.headers.get("Subject")
 199                                        });
 200
 201             m = Message.newMessage(Fountain.Util.concat(new Fountain[] { head,
 202                                                                          Fountain.Util.create("\r\n"),
 203                                                                          Fountain.Util.create(buf.toString()) }));
 204             Log.warn(MailingList.class, "archiving list message " + m.subject);
 205             mailbox.accept(m);
 206
 207             for(Subscriber s : subscribers()) try {
 208                     Log.warn(MailingList.class, "  trying " + s.address);
 209                     SMTP.enqueue(m.withEnvelope(m.envelopeFrom, s.address));
 210                     Log.warn("[list]", "successfully sent to " + s);
 211                 } catch (Exception e2) { Log.error("[list]", e2); }
 212         } catch (Exception e) { throw new RuntimeException(e); }
 213     }
 214
 215     //public Filter[]     filters  = new Filter[0];
 216     //public static class Filter {
 217     //    public class EmergencyModerationFilter { }
 218     //    public class MaximumLengthFilter { }
 219     //    public class SpamFilter { }
 220     //    public class MIMETypes { }
 221     //    public class MungeReplyTo { }
 222     //    public class AnonymizeSender { public boolean uncorrelated; }
 223     //}
 224 }
 225
 226     //public static enum UserType         { Administrator, Moderator, Member }
 227     //public static enum SubscriptionType { All, None, Digest, MimeDigest }
 228     //public static enum Visibility       { Members, Public, Nobody }
 229     //public static enum Action           { Accept, Hold, Reject }
 230     //public        Visibility       listVisibility       = Visibility.Nobody;
 231     //public        Visibility       membershipVisibility = Visibility.Nobody;
 232     //public        Visibility       archiveVisibility    = Visibility.Members;
 233     //public        Action           defaultPostingType   = Action.Hold;
 234
 235         //public  Action           posting = Action.Accept;
 236         //public  UserType         type = UserType.Member;
 237         //public  SubscriptionType subscription = SubscriptionType.All;
 238         //public  boolean          send_copy_of_own_post = false;
 239         //public  boolean          filter_duplicates_when_ccd = true;