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.
6 import org.prevayler.*;
7 import org.ibex.mail.*;
8 import org.ibex.util.*;
11 import org.ibex.io.Fountain;
14 import java.nio.channels.*;
18 import javax.servlet.*;
19 import javax.servlet.http.*;
21 /** An exceptionally crude implementation of Mailbox relying on POSIXy filesystem semantics */
22 public class FileBasedMailbox extends Mailbox.Default implements MailboxTree {
24 public static final long MAGIC_DATE = 0;
25 private static final char slash = File.separatorChar;
26 private static final WeakHashMap<String,FileBasedMailbox> instances = new WeakHashMap<String,FileBasedMailbox>();
27 public String toString() { return "[FileBasedMailbox " + path.getAbsolutePath() + "]"; }
29 public MailboxTree slash(String name, boolean create) { return getFileBasedMailbox(path.getAbsolutePath()+slash+name, create); }
31 public void rmdir(String subdir) { throw new RuntimeException("FIXME not implemented"); }
32 public void rename(String subdir, MailboxTree newParent, String newName) { throw new RuntimeException("FIXME not implemented"); }
33 public Mailbox getMailbox() { return this; }
35 public JS get(JS key) throws JSExn {
36 return (JS)slash(JSU.toString(key), true);
39 // FIXME: should be a File()
40 public static synchronized MailboxTree getFileBasedMailbox(String path, boolean create) {
42 MailboxTree ret = instances.get(path);
44 if (!create && !(new File(path).exists())) return null;
45 ret = new FileBasedMailbox(new File(path));
46 instances.put(path, (FileBasedMailbox)ret);
49 } catch (Exception e) {
50 Log.error(FileBasedMailbox.class, e);
55 // Instance //////////////////////////////////////////////////////////////////////////////
58 private FileLock lock;
60 private int uidValidity;
62 // Helpers //////////////////////////////////////////////////////////////////////////////
64 private static void rmDashRf(File f) throws IOException {
65 if (!f.isDirectory()) { f.delete(); return; }
66 String[] children = f.list();
67 for(int i=0; i<children.length; i++) rmDashRf(new File(f.getAbsolutePath() + slash + children[i]));
71 private FileBasedMailbox(File path) throws MailException, IOException, ClassNotFoundException {
76 File lockfile = new File(this.path.getAbsolutePath() + slash + ".lock");
77 lock = new RandomAccessFile(lockfile, "rw").getChannel().tryLock();
81 Log.warn(this, "warning: blocking waiting for a lock on " + path);
82 lock = new RandomAccessFile(lockfile, "rw").getChannel().lock();
83 if (lock == null) throw new IOException("unable to lock FileBasedMailbox: " + path);
85 lockfile.deleteOnExit();
88 uidValidity = (int)(lockfile.lastModified() & 0xffffffff);
90 String[] files = path.list();
91 for(int i=0; i<files.length; i++) {
93 if (files[i].indexOf('.') <= 0) continue;
94 files[i] = files[i].substring(0, files[i].indexOf('.'));
95 int n = Integer.parseInt(files[i]);
96 if (n>=uidNext) uidNext = n;
97 } catch(Exception e) { Log.error(this, e); }
101 public String[] sort(String[] s) {
106 public String[] files() {
107 String[] s = path.list(filter);
108 Arrays.sort(s, comparator);
112 private static Comparator<String> comparator = new Comparator<String>() {
113 public int compare(String a, String b) {
114 if (a.indexOf('.')==-1) return a.compareTo(b);
115 if (b.indexOf('.')==-1) return a.compareTo(a);
116 int ai = Integer.parseInt(a.substring(0, a.indexOf('.')));
117 int bi = Integer.parseInt(b.substring(0, b.indexOf('.')));
118 return ai<bi ? -1 : ai>bi ? 1 : 0;
122 public Mailbox.Iterator iterator() { return new Iterator(); }
123 public String[] children() {
125 String[] list = sort(path.list());
126 for(int i=0; i<list.length; i++) {
127 File f = new File(path.getAbsolutePath() + slash + list[i]);
128 if (f.isDirectory() && f.getName().charAt(0) != '.') vec.addElement(list[i]);
130 return (String[])vec.copyInto(new String[vec.size()]);
133 public int uidValidity() { return uidValidity; }
135 // UGLY: Apple Mail doesn't like UID=0, so we add one
136 public int uidNext() { return uidNext+1; }
138 public synchronized void insert(Message message, int flags) {
140 String name, fullname; File target, f;
141 for(int i = uidNext; ; i++) {
143 fullname = path.getAbsolutePath() + slash + name;
144 target = new File(fullname);
145 f = new File(target.getCanonicalPath() + "-");
146 if (!f.exists() && !target.exists()) break;
147 Log.error(this, "aieeee!!!! target of insert() already exists: " + target.getAbsolutePath());
149 Stream stream = new Stream(new FileOutputStream(f));
150 message.getStream().transcribe(stream);
152 f.renameTo(new File(fullname));
154 f = new File(fullname);
155 if ((flags & Mailbox.Flag.SEEN) == 0) f.setLastModified(MAGIC_DATE);
156 else if (f.lastModified()==MAGIC_DATE) f.setLastModified(System.currentTimeMillis());
157 } catch (IOException e) { throw new MailException.IOException(e); }
158 Log.info(this, path + " <= " + message.summary());
163 private static FilenameFilter filter =
164 new FilenameFilter() { public boolean accept(File dir, String name) {
165 return name.endsWith(".");
168 private class Iterator extends Mailbox.Default.Iterator {
170 String[] files = files();
171 private File file() { return new File(path.getAbsolutePath() + slash + files[cur]); }
172 public boolean done() { return cur >= files.length; }
173 public boolean next() { cur++; return !done(); }
174 public boolean recent() { return false; }
175 public int nntpNumber() { return cur+1; } // FIXME: lame
176 public int imapNumber() { return cur+1; } // EUDORA insists that message numbers start at 1, not 0
178 // UGLY: Apple Mail doesn't like UID=0, so we add one
179 public int uid() { return done() ? -1 : 1+Integer.parseInt(files[cur].substring(0, files[cur].length()-1)); }
180 public void delete() { File f = file(); if (f != null && f.exists()) f.delete(); }
181 public int getFlags() { return file().lastModified()==MAGIC_DATE ? 0 : Flag.SEEN; }
182 public void setFlags(int flags) {
184 if ((flags & Mailbox.Flag.SEEN) == 0) f.setLastModified(MAGIC_DATE);
185 else if (f.lastModified()==MAGIC_DATE) f.setLastModified(System.currentTimeMillis());
186 // FIXME: other flags?
188 public Headers head() { return done() ? null : new Headers(new Fountain.File(file())); }
189 public Message cur() { return Message.newMessage(new Fountain.File(file())); }
192 // there's no reason this has to operate on a FileBasedMailbox -- it could operate on arbitrary mailboxes!
193 // use this for file attachments: http://jakarta.apache.org/commons/fileupload/
194 public static class Servlet extends HttpServlet {
195 public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { doGet(request, response); }
196 private void frames(HttpServletRequest request, HttpServletResponse response, boolean top) throws IOException {
197 String basename = request.getRequestURI();
198 PrintWriter pw = new PrintWriter(response.getWriter());
199 pw.println("<html>");
201 pw.println(" <frameset rows='30%,*'>");
202 //pw.println(" <frame src='"+basename+"?frame=banner' marginwidth=0 marginheight=0 name=banner/>");
203 //pw.println(" <frame src='"+basename+"?frame=top' marginwidth=0 marginheight=0 name=top/>");
204 pw.println(" <frame src='"+basename+"?frame=topright' marginwidth=0 marginheight=0 name=topright/>");
205 pw.println(" <frame src='"+basename+"?frame=bottom' marginwidth=0 marginheight=0 name='bottom'/>");
207 pw.println(" <frameset cols='150,*'>");
208 pw.println(" <frame src='"+basename+"?frame=topleft' marginwidth=0 marginheight=0 name=topleft/>");
209 pw.println(" <frame src='"+basename+"?frame=topright' marginwidth=0 marginheight=0 name=topright/>");
211 pw.println(" </frameset>");
212 pw.println("</html>");
216 public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
217 String frame = request.getParameter("frame");
218 String basename = request.getRequestURI();
220 if (frame == null) { frames(request, response, true); return; }
221 if (frame.equals("top")) { frames(request, response, false); return; }
222 if (frame.equals("banner")) { banner(request, response); return; }
223 if (frame.equals("topleft")) { return; }
225 if (request.getServletPath().indexOf("..") != -1) throw new IOException(".. not allowed in image paths");
226 ServletContext cx = getServletContext();
227 String path = cx.getRealPath(request.getServletPath());
228 Mailbox mbox = FileBasedMailbox.getFileBasedMailbox(path, false).getMailbox();
229 if (mbox == null) throw new IOException("no such mailbox: " + path);
231 Vec msgs = new Vec();
232 for(Mailbox.Iterator it = mbox.iterator(); it.next();) {
233 String[] s = new String[4];
234 Message m = it.cur();
235 s[0] = (m.from==null?"":m.from.toString(true));
237 s[2] = (m.date + "").trim().replaceAll(" "," ");
238 s[3] = it.imapNumber() + "";
242 msgs.copyInto(messages = new String[msgs.size()][]);
244 if ("bottom".equals(frame)) { bottom(request, response, messages, mbox); return; }
245 if ("topright".equals(frame)) { topright(request, response, messages); return; }
248 private void bottom(HttpServletRequest request, HttpServletResponse response, String[][] messages, Mailbox mbox)
250 PrintWriter pw = new PrintWriter(response.getWriter());
251 pw.println("<html>");
252 pw.println(" <head>");
253 pw.println(" <style>");
254 pw.println(" body { margin: 10px; }");
255 pw.println(" pre {");
256 pw.println(" font-family: monospace;");
257 pw.println(" background-color: #F0F0E0;");
258 pw.println(" color: rgb(0, 0, 0);");
259 pw.println(" padding: 5px;");
260 pw.println(" margin: 0px;");
261 pw.println(" overflow: auto;");
262 //pw.println(" width: 80%;");
263 //pw.println(" border-style: solid;");
264 //pw.println(" border-width: 1px;");
266 pw.println(" </style>");
267 pw.println(" </head>");
268 pw.println(" <body>");
269 if (request.getParameter("msgnum") != null) {
270 int target = Integer.parseInt(request.getParameter("msgnum"));
271 Mailbox.Iterator it = mbox.iterator();
273 if (it.imapNumber() == target)
275 if (it.cur() != null) {
276 pw.println(" <table width=100% border=0 cellspacing=0 style='border: 1px black solid; background-color:#F0F0E0;'>");
277 pw.println(" <tr style='border: 1px black solid; font-family: monospace'><td style='padding: 5px'>");
278 Headers h = it.cur().headers;
279 pw.println(" Subject: " + it.cur().subject +"<br>");
280 pw.println(" From: " + it.cur().from +"<br>");
281 pw.println(" Date: " + it.cur().date +"<br>");
283 for(java.util.Enumeration e = h.names(); e.hasMoreElements();) {
284 String key = (String)e.nextElement();
285 if (key==null || key.length()==0 || key.equals("from") ||
286 key.equals("to") || key.equals("subject") || key.equals("date")) continue;
287 key = Character.toUpperCase(key.charAt(0)) + key.substring(1);
288 String val = h.get(key);
289 for(int i=key.length(); i<15; i++)pw.print(" ");
294 pw.print("</td></tr><tr><td style='border-top: 1px black; border-top-style: dotted;'><pre>");
295 StringBuffer tgt = new StringBuffer();
296 it.cur().getBody().getStream().transcribe(tgt);
297 pw.println(tgt.toString());
298 pw.println(" </pre></td></tr></table>");
301 pw.println(" </body>");
302 pw.println("</html>");
307 private void banner(HttpServletRequest request, HttpServletResponse response) throws IOException {
308 String basename = request.getServletPath();
309 String realpath = getServletContext().getRealPath(basename);
311 MailingList list = MailingList.getMailingList(realpath);
312 list.banner(request, response);
314 banner(request, response);
317 private void topright(HttpServletRequest request, HttpServletResponse response, String[][] messages) throws IOException {
318 PrintWriter pw = new PrintWriter(response.getWriter());
319 String basename = request.getRequestURI();
320 pw.println("<html>");
321 pw.println(" <head>");
322 pw.println(" <style>");
323 pw.println(" TH, TD, P, LI {");
324 pw.println(" font-family: helvetica, verdana, arial, sans-serif;");
325 pw.println(" font-size: 12px; ");
326 pw.println(" text-decoration:none; ");
328 pw.println(" body { margin: 10px; }");
329 pw.println(" a:link { color: #000; text-decoration: none; }");
330 pw.println(" a:active { color: #f00; text-decoration: none; }");
331 pw.println(" a:visited { color: #777; text-decoration: none; }");
332 pw.println(" a:hover { color: #000; text-decoration: none; }");
333 pw.println(" /* a:hover { color: #00f; text-decoration: none; border-bottom: 1px dotted; } */");
334 pw.println(" </style>");
335 pw.println(" </head>");
336 pw.println(" <body onKeyPress='doKey(event.keyCode)'>");
337 pw.println(" <script>");
338 pw.println(" var chosen = null;");
339 pw.println(" var all = [];");
340 pw.println(" function doKey(x) {");
341 pw.println(" if (chosen == null) { choose(all[0]); return; }");
342 pw.println(" switch(x) {");
343 pw.println(" case 112: if (chosen.id > 0) choose(all[chosen.id-1]); break;");
344 pw.println(" case 110: if (chosen.id < (all.length-1)) choose(all[1+(1*chosen.id)]); break;");
347 pw.println(" function choose(who) {");
348 pw.println(" who.style.background = '#ffc';");
349 pw.println(" if (chosen != null) chosen.style.background = '#ccc';");
350 pw.println(" parent.parent.bottom.location='"+basename+"?frame=bottom&msgnum='+who.id;");
351 pw.println(" chosen = who;");
353 pw.println(" </script>");
354 pw.println(" <div style='border: 1px black solid;'><table width=100% border=0 cellpadding=0 cellspacing=0>");
355 pw.println(" <tr><td style='padding: 4px' bgcolor=#eff7ff>");
357 banner(request, response);
358 pw.println(" </td></tr>");
359 pw.println(" <tr><td>");
360 pw.println(" <table width=100% cellpadding=0 cellspacing=0 style='border-top: 1px black solid; cursor:pointer;'>");
362 for(int i=0; i<messages.length; i++) {
364 String[] m = messages[i];
365 pw.println(" <tr style='cursor:pointer; background: "+(odd?"#e8eef7":"white")+"' id='"+m[3]+"' "+
366 "onmouseover='this.style.color=\"blue\"' "+
367 "onmouseout='this.style.color=\"black\"' "+
368 "onclick='choose(this);'>");
369 pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[0]+"</td>");
370 pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[1]+"</td>");
371 pw.println("<td style='cursor:pointer; padding:5px; padding-bottom:2px'>"+m[2]+"</td>");
373 pw.println("<script> all["+i+"] = document.getElementById('"+i+"'); </script>");
375 pw.println(" </table>");
376 pw.println(" </td></tr>");
377 pw.println(" </table></div>");
378 pw.println(" </body>");
379 pw.println("</html>");