--- /dev/null
+// Copyright 2000-2005 the Contributors, as shown in the revision logs.
+// Licensed under the Apache Public Source License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
+package org.ibex.mail;
+import org.prevayler.*;
+import org.ibex.mail.*;
+import org.ibex.util.*;
+import org.ibex.io.*;
+import java.io.*;
+import java.nio.*;
+import java.nio.channels.*;
+import java.net.*;
+import java.util.*;
+import java.text.*;
+import javax.servlet.*;
+import javax.servlet.http.*;
+
+/** An exceptionally crude implementation of Mailbox relying on POSIXy filesystem semantics */
+public class FileBasedMailbox extends Mailbox.Default {
+
+ public static final long MAGIC_DATE = 0;
+ private static final char slash = File.separatorChar;
+ private static final WeakHashMap<String,Mailbox> instances = new WeakHashMap<String,Mailbox>();
+ public String toString() { return "[FileBasedMailbox " + path.getAbsolutePath() + "]"; }
+ public Mailbox slash(String name, boolean create) { return getFileBasedMailbox(path.getAbsolutePath()+slash+name, create); }
+
+ // FIXME: should be a File()
+ public static synchronized Mailbox getFileBasedMailbox(String path, boolean create) {
+ try {
+ Mailbox ret = instances.get(path);
+ if (ret == null) {
+ if (!create && !(new File(path).exists())) return null;
+ if (new File(new File(path)+"/subscribers").exists()) {
+ ret = new MailingList(new File(path), new FileBasedMailbox(new File(path)));
+ } else {
+ ret = new FileBasedMailbox(new File(path));
+ }
+ instances.put(path, ret);
+ }
+ return ret;
+ } catch (Exception e) {
+ Log.error(FileBasedMailbox.class, e);
+ return null;
+ }
+ }
+
+ // Instance //////////////////////////////////////////////////////////////////////////////
+
+ private File path;
+ private FileLock lock;
+ private int uidNext;
+ private int uidValidity;
+
+ // Helpers //////////////////////////////////////////////////////////////////////////////
+
+ private static void rmDashRf(File f) throws IOException {
+ if (!f.isDirectory()) { f.delete(); return; }
+ String[] children = f.list();
+ for(int i=0; i<children.length; i++) rmDashRf(new File(f.getAbsolutePath() + slash + children[i]));
+ f.delete();
+ }
+
+ private FileBasedMailbox(File path) throws MailException, IOException, ClassNotFoundException {
+ this.path = path;
+ path.mkdirs();
+
+ // acquire lock
+ File lockfile = new File(this.path.getAbsolutePath() + slash + ".lock");
+ lock = new RandomAccessFile(lockfile, "rw").getChannel().tryLock();
+ /*
+ if (lock == null) {
+ Log.warn(this, "warning: blocking waiting for a lock on " + path);
+ lock = new RandomAccessFile(lockfile, "rw").getChannel().lock();
+ if (lock == null) throw new IOException("unable to lock FileBasedMailbox: " + path);
+ }
+ lockfile.deleteOnExit();
+ */
+
+ uidValidity = (int)(lockfile.lastModified() & 0xffffffff);
+ uidNext = 0;
+ String[] files = path.list();
+ for(int i=0; i<files.length; i++) {
+ try {
+ if (files[i].indexOf('.') <= 0) continue;
+ files[i] = files[i].substring(0, files[i].indexOf('.'));
+ int n = Integer.parseInt(files[i]);
+ if (n>=uidNext) uidNext = n;
+ } catch(Exception e) { Log.error(this, e); }
+ }
+ }
+
+ public String[] sort(String[] s) {
+ Arrays.sort(s);
+ return s;
+ }
+
+ public String[] files() {
+ String[] s = path.list(filter);
+ Arrays.sort(s, comparator);
+ return s;
+ }
+
+ private static Comparator<String> comparator = new Comparator<String>() {
+ public int compare(String a, String b) {
+ if (a.indexOf('.')==-1) return a.compareTo(b);
+ if (b.indexOf('.')==-1) return a.compareTo(a);
+ int ai = Integer.parseInt(a.substring(0, a.indexOf('.')));
+ int bi = Integer.parseInt(b.substring(0, b.indexOf('.')));
+ return ai<bi ? -1 : ai>bi ? 1 : 0;
+ }
+ };
+
+ public Mailbox.Iterator iterator() { return new Iterator(); }
+ public String[] children() {
+ Vec vec = new Vec();
+ String[] list = sort(path.list());
+ for(int i=0; i<list.length; i++) {
+ File f = new File(path.getAbsolutePath() + slash + list[i]);
+ if (f.isDirectory() && f.getName().charAt(0) != '.') vec.addElement(list[i]);
+ }
+ return (String[])vec.copyInto(new String[vec.size()]);
+ }
+
+ public int uidValidity() { return uidValidity; }
+ public int uidNext() { return uidNext; }
+ public synchronized void insert(Message message, int flags) {
+ try {
+ String name, fullname; File target, f;
+ for(int i = uidNext; ; i++) {
+ name = i + ".";
+ fullname = path.getAbsolutePath() + slash + name;
+ target = new File(fullname);
+ f = new File(target.getCanonicalPath() + "-");
+ if (!f.exists() && !target.exists()) break;
+ Log.error(this, "aieeee!!!! target of insert() already exists: " + target.getAbsolutePath());
+ }
+ Stream stream = new Stream(new FileOutputStream(f));
+ message.getStream().transcribe(stream);
+ stream.close();
+ f.renameTo(new File(fullname));
+ uidNext++;
+ f = new File(fullname);
+ if ((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) f.setLastModified(MAGIC_DATE);
+ } catch (IOException e) { throw new MailException.IOException(e); }
+ Log.info(this, path + " <= " + message.summary());
+ }
+
+ private static FilenameFilter filter =
+ new FilenameFilter() { public boolean accept(File dir, String name) {
+ return name.endsWith(".");
+ } };
+
+ private class Iterator extends Mailbox.Default.Iterator {
+ int cur = -1;
+ String[] files = files();
+ private File file() { return new File(path.getAbsolutePath() + slash + files[cur]); }
+ public boolean done() { return cur >= files.length; }
+ public boolean next() { cur++; return !done(); }
+ public boolean seen() { return false; }
+ public boolean recent() { return false; }
+ public int nntpNumber() { return cur+1; } // FIXME: lame
+ public int imapNumber() { return cur+1; } // EUDORA insists that message numbers start at 1, not 0
+ public int uid() { return done() ? -1 : Integer.parseInt(files[cur].substring(0, files[cur].length()-1)); }
+ public void delete() { File f = file(); if (f != null && f.exists()) f.delete(); }
+ public void seen(boolean seen) { }
+ public Headers head() {
+ if (done()) return null;
+ FileInputStream fis = null;
+ try {
+ return new Headers.Original(new Stream(new FileInputStream(file())));
+ } catch (IOException e) { throw new MailException.IOException(e);
+ } finally { if (fis != null) try { fis.close(); } catch (Exception e) { /* DELIBERATE */ } }
+ }
+ public Message cur() {
+ FileInputStream fis = null;
+ try {
+ return Message.newMessage(new Fountain.File(file()));
+ //} catch (IOException e) { throw new MailException.IOException(e);
+ } catch (Message.Malformed e) { throw new MailException(e.getMessage());
+ } finally { if (fis != null) try { fis.close(); } catch (Exception e) { /* DELIBERATE */ } }
+ }
+ }
+
+ public static class Servlet extends HttpServlet {
+ public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { doGet(request, response); }
+ private void frames(HttpServletRequest request, HttpServletResponse response, boolean top) throws IOException {
+ String basename = request.getRequestURI();
+ PrintWriter pw = new PrintWriter(response.getWriter());
+ pw.println("<html>");
+ if (top) {
+ pw.println(" <frameset rows='30%,*'>");
+ //pw.println(" <frame src='"+basename+"?frame=banner' marginwidth=0 marginheight=0 name=banner/>");
+ //pw.println(" <frame src='"+basename+"?frame=top' marginwidth=0 marginheight=0 name=top/>");
+ pw.println(" <frame src='"+basename+"?frame=topright' marginwidth=0 marginheight=0 name=topright/>");
+ pw.println(" <frame src='"+basename+"?frame=bottom' marginwidth=0 marginheight=0 name='bottom'/>");
+ } else {
+ pw.println(" <frameset cols='150,*'>");
+ pw.println(" <frame src='"+basename+"?frame=topleft' marginwidth=0 marginheight=0 name=topleft/>");
+ pw.println(" <frame src='"+basename+"?frame=topright' marginwidth=0 marginheight=0 name=topright/>");
+ }
+ pw.println(" </frameset>");
+ pw.println("</html>");
+ pw.flush();
+ }
+
+ public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+ String frame = request.getParameter("frame");
+ String basename = request.getRequestURI();
+
+ if (frame == null) { frames(request, response, true); return; }
+ if (frame.equals("top")) { frames(request, response, false); return; }
+ if (frame.equals("banner")) { banner(request, response); return; }
+ if (frame.equals("topleft")) { return; }
+
+ if (request.getServletPath().indexOf("..") != -1) throw new IOException(".. not allowed in image paths");
+ ServletContext cx = getServletContext();
+ String path = cx.getRealPath(request.getServletPath());
+ Mailbox mbox = FileBasedMailbox.getFileBasedMailbox(path, false);
+ if (mbox == null) throw new IOException("no such mailbox: " + path);
+
+ Vec msgs = new Vec();
+ for(Mailbox.Iterator it = mbox.iterator(); it.next();) {
+ String[] s = new String[4];
+ Message m = it.cur();
+ s[0] = (m.from==null?"":m.from.toString(true));
+ s[1] = m.subject;
+ s[2] = (m.date + "").trim().replaceAll(" "," ");
+ s[3] = it.imapNumber() + "";
+ msgs.addElement(s);
+ }
+ String[][] messages;
+ msgs.copyInto(messages = new String[msgs.size()][]);
+
+ if ("bottom".equals(frame)) { bottom(request, response, messages, mbox); return; }
+ if ("topright".equals(frame)) { topright(request, response, messages); return; }
+ }
+
+ private void bottom(HttpServletRequest request, HttpServletResponse response, String[][] messages, Mailbox mbox)
+ throws IOException {
+ PrintWriter pw = new PrintWriter(response.getWriter());
+ pw.println("<html>");
+ pw.println(" <head>");
+ pw.println(" <style>");
+ pw.println(" body { margin: 10px; }");
+ pw.println(" pre {");
+ pw.println(" font-family: monospace;");
+ pw.println(" background-color: #F0F0E0;");
+ pw.println(" color: rgb(0, 0, 0);");
+ pw.println(" padding: 5px;");
+ pw.println(" margin: 0px;");
+ pw.println(" overflow: auto;");
+ //pw.println(" width: 80%;");
+ //pw.println(" border-style: solid;");
+ //pw.println(" border-width: 1px;");
+ pw.println(" }");
+ pw.println(" </style>");
+ pw.println(" </head>");
+ pw.println(" <body>");
+ if (request.getParameter("msgnum") != null) {
+ int target = Integer.parseInt(request.getParameter("msgnum"));
+ Mailbox.Iterator it = mbox.iterator();
+ while(it.next())
+ if (it.imapNumber() == target)
+ break;
+ if (it.cur() != null) {
+ pw.println(" <table width=100% border=0 cellspacing=0 style='border: 1px black solid; background-color:#F0F0E0;'>");
+ pw.println(" <tr style='border: 1px black solid; font-family: monospace'><td style='padding: 5px'>");
+ Headers h = it.cur().headers;
+ pw.println(" Subject: " + it.cur().subject +"<br>");
+ pw.println(" From: " + it.cur().from +"<br>");
+ pw.println(" Date: " + it.cur().date +"<br>");
+ /*
+ for(java.util.Enumeration e = h.names(); e.hasMoreElements();) {
+ String key = (String)e.nextElement();
+ if (key==null || key.length()==0 || key.equals("from") ||
+ key.equals("to") || key.equals("subject") || key.equals("date")) continue;
+ key = Character.toUpperCase(key.charAt(0)) + key.substring(1);
+ String val = h.get(key);
+ for(int i=key.length(); i<15; i++)pw.print(" ");
+ pw.print(key+": ");
+ pw.println(val);
+ }
+ */
+ pw.print("</td></tr><tr><td style='border-top: 1px black; border-top-style: dotted;'><pre>");
+ StringBuffer tgt = new StringBuffer();
+ it.cur().getBody().getStream().transcribe(tgt);
+ pw.println(tgt.toString());
+ pw.println(" </pre></td></tr></table>");
+ }
+ }
+ pw.println(" </body>");
+ pw.println("</html>");
+ pw.flush();
+ pw.close();
+ }
+
+ private void banner(HttpServletRequest request, HttpServletResponse response) throws IOException {
+ String basename = request.getServletPath();
+ String realpath = getServletContext().getRealPath(basename);
+ /*
+ MailingList list = MailingList.getMailingList(realpath);
+ list.banner(request, response);
+ */
+ banner(request, response);
+ }
+
+ private void topright(HttpServletRequest request, HttpServletResponse response, String[][] messages) throws IOException {
+ PrintWriter pw = new PrintWriter(response.getWriter());
+ String basename = request.getRequestURI();
+ pw.println("<html>");
+ pw.println(" <head>");
+ pw.println(" <style>");
+ pw.println(" TH, TD, P, LI {");
+ pw.println(" font-family: helvetica, verdana, arial, sans-serif;");
+ pw.println(" font-size: 12px; ");
+ pw.println(" text-decoration:none; ");
+ pw.println(" }");
+ pw.println(" body { margin: 10px; }");
+ pw.println(" a:link { color: #000; text-decoration: none; }");
+ pw.println(" a:active { color: #f00; text-decoration: none; }");
+ pw.println(" a:visited { color: #777; text-decoration: none; }");
+ pw.println(" a:hover { color: #000; text-decoration: none; }");
+ pw.println(" /* a:hover { color: #00f; text-decoration: none; border-bottom: 1px dotted; } */");
+ pw.println(" </style>");
+ pw.println(" </head>");
+ pw.println(" <body onKeyPress='doKey(event.keyCode)'>");
+ pw.println(" <script>");
+ pw.println(" var chosen = null;");
+ pw.println(" var all = [];");
+ pw.println(" function doKey(x) {");
+ pw.println(" if (chosen == null) { choose(all[0]); return; }");
+ pw.println(" switch(x) {");
+ pw.println(" case 112: if (chosen.id > 0) choose(all[chosen.id-1]); break;");
+ pw.println(" case 110: if (chosen.id < (all.length-1)) choose(all[1+(1*chosen.id)]); break;");
+ pw.println(" }");
+ pw.println(" }");
+ pw.println(" function choose(who) {");
+ pw.println(" who.style.background = '#ffc';");
+ pw.println(" if (chosen != null) chosen.style.background = '#ccc';");
+ pw.println(" parent.parent.bottom.location='"+basename+"?frame=bottom&msgnum='+who.id;");
+ pw.println(" chosen = who;");
+ pw.println(" }");
+ pw.println(" </script>");
+ pw.println(" <div style='border: 1px black solid;'><table width=100% border=0 cellpadding=0 cellspacing=0>");
+ pw.println(" <tr><td style='padding: 4px' bgcolor=#eff7ff>");
+ pw.flush();
+ banner(request, response);
+ pw.println(" </td></tr>");
+ pw.println(" <tr><td>");
+ pw.println(" <table width=100% cellpadding=0 cellspacing=0 style='border-top: 1px black solid; cursor:pointer;'>");
+ boolean odd=true;
+ for(int i=0; i<messages.length; i++) {
+ odd = !odd;
+ String[] m = messages[i];
+ pw.println(" <tr style='cursor:pointer; background: "+(odd?"#e8eef7":"white")+"' id='"+m[3]+"' "+
+ "onmouseover='this.style.color=\"blue\"' "+
+ "onmouseout='this.style.color=\"black\"' "+
+ "onclick='choose(this);'>");
+ pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[0]+"</td>");
+ pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[1]+"</td>");
+ pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[2]+"</td>");
+ pw.println("</tr>");
+ pw.println("<script> all["+i+"] = document.getElementById('"+i+"'); </script>");
+ }
+ pw.println(" </table>");
+ pw.println(" </td></tr>");
+ pw.println(" </table></div>");
+ pw.println(" </body>");
+ pw.println("</html>");
+ pw.flush();
+ pw.close();
+ }
+ }
+}
projects / org.ibex.mail.git / blobdiff