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