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.
8 import org.ibex.crypto.*;
9 import org.ibex.mail.*;
10 import org.ibex.util.*;
11 import org.ibex.mail.target.*;
17 // FEATURE: IDLE extension for blackberries
19 // FIXME: this is valid LSUB "" asdfdas%*%*%*%*SFEFGWEF
20 // FIXME: be very careful about where/when we quotify stuff
21 // FIXME: 'UID FOO 100:*' must match at least one message even if all UIDs less than 100
22 // FIXME: LIST should return INBOX if applicable
26 // RFC 3501: IMAPv4 with clarifications
34 // FEATURE: make sure we're being case-insensitive enough; probably want to upcase atom()
35 // FEATURE: MIME-queries and BODYSTRUCTURE
36 // FEATURE: READ-WRITE / READ-ONLY status on SELECT
37 // FEATURE: pipelining
38 // FEATURE: support [charset]
40 // FEATURE: subscriptions
41 // FEATURE: tune for efficiency
43 // FEATURE: asynchronous client notifications (need to re-read RFC)
48 public static final float version = (float)0.2;
50 // API Class //////////////////////////////////////////////////////////////////////////////
52 public static interface Client {
53 public void expunge(int uid);
54 public void list(char separator, String mailbox, boolean lsub, boolean phantom);
55 public void fetch(int num, int flags, int size, Message m, int muid); // m may be null or incomplete
58 public static interface Server {
59 public void setClient(IMAP.Client client);
60 public String[] capability();
61 public Hashtable id(Hashtable clientId);
62 public void copy(Query q, String to);
64 public void unselect();
65 public void delete(String m);
66 public void create(String m);
67 public void append(String m, int flags, Date arrival, String body);
71 public void subscribe(String mailbox);
72 public void unsubscribe(String mailbox);
73 public int unseen(String mailbox);
74 public int recent(String mailbox);
75 public int count(String mailbox);
78 public int uidNext(String mailbox);
79 public int uidValidity(String mailbox);
80 public int[] search(Query q, boolean uid);
81 public void rename(String from, String to);
82 public void select(String mailbox, boolean examineOnly);
83 public void setFlags(Query q, int flags, boolean uid, boolean silent);
84 public void removeFlags(Query q, int flags, boolean uid, boolean silent);
85 public void addFlags(Query q, int flags, boolean uid, boolean silent);
86 public void expunge();
87 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid);
88 public void lsub(String start, String ref);
89 public void list(String start, String ref);
90 public static class Exn extends MailException { public Exn(String s) { super(s); } }
91 public static class Bad extends Exn { public Bad(String s) { super(s); } }
92 public static class No extends Exn { public No(String s) { super(s); } }
96 // MailboxWrapper //////////////////////////////////////////////////////////////////////////////
98 /** wraps an IMAP.Server interface around a Mailbox */
99 public static class MailboxWrapper implements Server {
101 public static final char sep = '.';
103 Mailbox inbox = null;
104 Mailbox selected = null;
105 MailTree root = null;
106 Mailbox selected() { if (selected == null) throw new Bad("no mailbox selected"); return selected; }
110 public MailboxWrapper(Login auth, Client c) { this.auth=auth; this.client=c;}
111 public void setClient(IMAP.Client client) { }
113 private String dirname(String name) { return name.substring(0, name.lastIndexOf(sep)); }
114 private String basename(String name) { return name.substring(name.lastIndexOf(sep)+1); }
115 private Mailbox mailbox(String name, boolean create) { return mailbox(name, create, true); }
116 private Mailbox mailbox(String name, boolean create, boolean throwexn) {
117 if (name.equalsIgnoreCase("inbox")) return inbox;
118 if (name.equalsIgnoreCase("trash")) name = "trash";
119 MailTree mt = mailboxTree(name, create, throwexn);
120 Mailbox ret = mt==null ? null : mt.getMailbox();
121 if (ret==null && throwexn) throw new Server.No("no such mailbox " + name);
124 private MailTree mailboxTree(String name, boolean create) { return mailboxTree(name, create, true); }
125 private MailTree mailboxTree(String name, boolean create, boolean throwexn) {
127 for(StringTokenizer st = new StringTokenizer(name, sep + ""); st.hasMoreTokens();)
128 if ((m = m.slash(st.nextToken(), create)) == null) {
129 if (throwexn) throw new Server.No("no such mailbox " + name);
135 // FEATURE: not accurate when a wildcard and subsequent non-wildcards both match a single component
136 public void lsub(String start, String ref) { list(start, ref, true); }
137 public void list(String start, String ref) { list(start, ref, false); }
138 public void list(String start, String ref, boolean lsub) {
140 // FIXME this might be wrong
141 if (ref.equalsIgnoreCase("inbox")) { client.list(sep,"inbox",lsub,false); return; }
143 if (ref.length() == 0) { client.list(sep, start, lsub, false); return; }
144 while (start.endsWith(""+sep)) start = start.substring(0, start.length() - 1);
145 if (ref.endsWith("%")) ref = ref + sep;
146 String[] children = (start.length() == 0 ? root : mailboxTree(start, false)).children();
147 for(int i=0; i<children.length; i++) {
148 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? sep+"" : "") + s;
149 if (mailbox(kid, false) == null) continue;
150 MailTree phant = mailboxTree(kid, false, false);
152 boolean phantom = phant.getMailbox()==null;
154 if (pre.length() == 0) {
155 if (s.length() == 0) client.list(sep, kid, lsub, phantom);
156 } else switch(pre.charAt(0)) {
157 case sep: if (s.length() == 0) list(kid, pre.substring(1), lsub); break;
158 case '%': client.list(sep,kid,lsub,phantom);pre=pre.substring(1); s = ""; continue;
159 case '*': client.list(sep,kid,lsub,phantom);list(kid,pre,lsub);pre=pre.substring(1); break;
160 default: if (s.length()==0) break;
161 if (s.charAt(0) != pre.charAt(0)) break;
162 s = s.substring(1); pre = pre.substring(1); continue;
170 public String[] capability() { return new String[] { "IMAP4rev1" , "UNSELECT" /*, "ID"*/ }; }
171 public Hashtable id(Hashtable clientId) {
172 Hashtable response = new Hashtable();
173 response.put("name", IMAP.class.getName());
174 response.put("version", version + "");
175 response.put("os", System.getProperty("os.name", null));
176 response.put("os-version", System.getProperty("os.version", null));
177 response.put("vendor", "none");
178 response.put("support-url", "http://mail.ibex.org/");
182 public void copy(Query q, String to) { copy(q, mailbox(to, false)); }
183 /* */ void copy(Query q, Mailbox to) {
184 for(Mailbox.Iterator it=selected().iterator(q);it.next();) to.insert(it.cur(), it.getFlags() | Mailbox.Flag.RECENT); }
186 public void unselect() { selected = null; }
188 public void delete(String m0) { mailboxTree(dirname(m0),false).rmdir(basename(m0)); }
190 public void rename(String from0, String to) {
191 Mailbox from = mailbox(from0, false);
192 if (from.equals(inbox)) { from.copy(Query.all(), mailbox(to, true)); }
193 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), mailbox(to, true)); delete(from0); }
194 else mailboxTree(dirname(from0), false)
195 .rename(dirname(from0),
196 mailboxTree(dirname(to),
197 true /* required by IMAP */),
201 public void create(String m) { mailbox(m, true, false); }
202 public void append(String m,int f,Date a,String b) { try {
203 // FIXME: more efficient streaming here?
204 mailbox(m,false).insert(Message.newMessage(new Fountain.StringFountain(b)), f | Mailbox.Flag.RECENT);
205 } catch (Message.Malformed e) { throw new No(e.getMessage()); } }
206 public void check() { }
207 public void noop() { }
208 public void logout() { }
209 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); }
210 public void expunge() { for(Mailbox.Iterator it = selected().iterator(Query.deleted());it.next();) expunge(it); }
211 public void expunge(Mailbox.Iterator it) { client.expunge(it.uid()); it.delete(); }
212 public void subscribe(String mailbox) { }
213 public void unsubscribe(String mailbox) { }
214 public int maxuid() {
216 Mailbox mb = selected();
217 if (mb == null) return 0;
220 public int unseen(String mailbox) { return mailbox(mailbox, false).count(Query.not(Query.seen())); }
221 public int recent(String mailbox) { return mailbox(mailbox, false).count(Query.recent()); }
222 public int count(String mailbox) { return mailbox(mailbox, false).count(Query.all()); }
223 public int count() { return selected().count(Query.all()); }
224 public int uidNext(String mailbox) { return mailbox(mailbox, false).uidNext(); }
225 public int uidValidity(String mailbox) { return Math.abs(mailbox(mailbox, false).uidValidity()); }
226 public void select(String mailbox, boolean examineOnly) { selected = mailbox(mailbox, false); }
228 public int[] search(Query q, boolean uid) {
229 Vec.Int vec = new Vec.Int();
230 for(Mailbox.Iterator it = selected().iterator(q); it.next();) {
231 vec.addElement(uid ? it.uid() : it.imapNumber());
232 if ((it.getFlags() & Mailbox.Flag.RECENT) != 0)
233 it.setFlags(it.getFlags() & ~Mailbox.Flag.RECENT);
238 public void setFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 0, silent); }
239 public void addFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 1, silent); }
240 public void removeFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, -1, silent); }
241 private void doFlags(Query q, int flags, boolean uid, int style, boolean silent) {
242 for(Mailbox.Iterator it = selected().iterator(q);it.next();) {
243 // FIXME: what's going on here with the recent flag?
244 //boolean recent = it.getFlag(Mailbox.Flag.RECENT);
245 //try { throw new Exception("flags " + flags); } catch (Exception e) { Log.error(this, e); }
246 if (style == -1) it.setFlags(it.getFlags() & ~flags);
247 else if (style == 0) it.setFlags(flags);
248 else if (style == 1) it.setFlags(it.getFlags() | flags);
249 //it.setFlag(Mailbox.Flag.RECENT, recent);
250 if (!silent) client.fetch(it.imapNumber(), it.getFlags(), -1, null, it.uid());
254 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid) {
255 for(Mailbox.Iterator it = selected().iterator(q); it.next(); ) {
257 ((spec & (BODYSTRUCTURE | RFC822 | RFC822TEXT | RFC822SIZE)) != 0)
259 : ((spec & (ENVELOPE | INTERNALDATE | FIELDS | FIELDSNOT | RFC822SIZE | HEADERNOT | HEADER)) != 0)
260 ? Message.newMessage(Fountain.Util.concat(it.head(), Fountain.Util.create("\r\n\r\n")))
262 if (message != null) Log.warn("spec", spec);
263 long size = message == null ? 0 : message.getLength();
264 client.fetch(it.imapNumber(), it.getFlags(), (int)size, message, it.uid());
265 it.setFlags(it.getFlags() & ~Mailbox.Flag.RECENT);
270 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
272 /** takes an IMAP.Server and exposes it to the world as an IMAP server on a TCP socket */
273 public static class Listener implements Client {
274 String selectedName = null;
275 Mailbox inbox = null;
276 MailTree root = null;
278 Parser parser = null;
279 Connection conn = null;
281 public Listener(Login auth) { api = new IMAP.MailboxWrapper(this.auth = auth, this); }
282 Parser.Token token() { return parser.token(); }
283 Parser.Token token(boolean freak) { return parser.token(freak); }
284 void println(String s) {
288 void newline() { parser.newline(); }
289 Query query(int max) { return parser.query(max, maxn(true)); }
291 public void login(String u, String p) {
293 if ((ret = auth.login(u,p,IMAP.class)) == null) throw new Server.No("Login failed.");
294 if (ret instanceof IMAP.Server) {
295 api = (IMAP.Server)ret;
298 Account account = (Account)ret;
299 ((MailboxWrapper)api).root = root = account.getMailbox(IMAP.class);
300 MailTree ibt = root.slash("inbox", false);
301 Mailbox ib = ibt==null ? null : ibt.getMailbox();
302 ((MailboxWrapper)api).inbox = inbox = ib;
306 private int maxn(boolean uid) { return uid ? api.maxuid() : api.count(); }
308 public void handleRequest(Connection conn) {
310 parser = new Parser(conn);
311 conn.setTimeout(30 * 60 * 1000);
312 println("* OK " + conn.vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
313 for(String tag = null;;) try {
316 tag = null; Parser.Token tok = token(); if (tok == null) return; tag = tok.astring();
317 String command = token().atom();
318 if (command.equalsIgnoreCase("UID")) { uid = true; command = token().atom(); }
319 int commandKey = ((Integer)commands.get(command.toUpperCase())).intValue();
321 case LOGIN: login(token().astring(), token().astring()); break;
322 case CAPABILITY: println("* CAPABILITY " + Printer.join(" ", api.capability())); break;
323 case AUTHENTICATE: throw new Server.No("AUTHENTICATE not supported");
324 case LOGOUT: api.logout(); println("* BYE"); conn.close(); return;
325 case LIST: api.list(token().q(), token().astring()); break; /*astring is a hack for EUDORA*/
326 case LSUB: api.lsub(token().q(), token().q()); break;
327 case SUBSCRIBE: api.subscribe(token().astring()); break;
328 case UNSUBSCRIBE: api.unsubscribe(token().astring()); break;
329 case RENAME: api.rename(token().astring(), token().astring()); break;
330 case DELETE: api.delete(token().atom()); break;
331 case CHECK: selected(); api.check(); break;
332 case NOOP: api.noop(); break;
333 case CLOSE: selected(); api.close(); break;
334 case EXPUNGE: selected(); api.expunge(); break;
335 case UNSELECT: selected(); api.unselect(); selected = false; break;
336 case CREATE: api.create(token().astring()); break;
337 case FETCH: selected(); lastuid = uid; fetch((uid
338 ? Query.uid(token().set(maxn(uid)))
339 : Query.imapNumber(token().set(maxn(uid)))),
340 lastfetch=token().lx(), 0, 0, 0, uid, 0); break;
341 case COPY: selected(); api.copy(uid
342 ? Query.uid(token().set(maxn(uid)))
343 : Query.imapNumber(token().set(maxn(uid))), token().astring()); break;
346 int[] result = api.search(query(maxn(uid)), uid);
347 /*if (result.length > 0)*/ println("* SEARCH " + Printer.join(result));
352 String mailbox = token().astring();
353 api.select(mailbox, commandKey==EXAMINE);
354 println("* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
355 println("* " + api.count(mailbox) + " EXISTS");
356 println("* " + api.recent(mailbox) + " RECENT");
357 println("* OK [UNSEEN " + api.unseen(mailbox) + "]");
358 println("* OK [UIDVALIDITY " + api.uidValidity(mailbox) + "] UIDs valid");
359 println("* OK [UIDNEXT " + api.uidNext(mailbox) + "]");
360 println("* OK [PERMANENTFLAGS (\\Seen)]");
364 String mailbox = token().astring(); // hack for GNUS buggy client
365 Parser.Token[] list = token().l();
366 String response = "";
367 for(int i=0; i<list.length; i++) {
368 String s = list[i].atom().toUpperCase();
369 if (i>0) response += " ";
370 if (s.equals("MESSAGES")) response += "MESSAGES " + api.count(mailbox);
371 if (s.equals("RECENT")) response += "RECENT " + api.recent(mailbox);
372 if (s.equals("UIDNEXT")) response += "UIDNEXT " + api.uidNext(mailbox);
373 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + api.uidValidity(mailbox);
374 if (s.equals("UNSEEN")) response += "UNSEEN " + api.unseen(mailbox);
376 println("* STATUS " + mailbox + " (" + response + ")");
380 String m = token().astring();
382 Date arrival = new Date();
383 Parser.Token t = token();
384 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
385 Parser.Token t2 = token(false);
386 if (t2 != null) { arrival = t.datetime(); t = t2; }
387 api.append(m, flags, arrival, t.q());
391 Query q = uid ? Query.uid(token().set(maxn(uid))) : Query.imapNumber(token().set(maxn(uid)));
392 String s = token().atom().toUpperCase();
393 int flags = token().flags();
394 if (s.equals("FLAGS")) api.setFlags(q, flags, uid, false);
395 else if (s.equals("+FLAGS")) api.addFlags(q, flags, uid, false);
396 else if (s.equals("-FLAGS")) api.removeFlags(q, flags, uid, false);
397 else if (s.equals("FLAGS.SILENT")) api.setFlags(q, flags, uid, true);
398 else if (s.equals("+FLAGS.SILENT")) api.addFlags(q, flags, uid, true);
399 else if (s.equals("-FLAGS.SILENT")) api.removeFlags(q, flags, uid, true);
400 else throw new Server.Bad("unknown STORE specifier " + s);
402 default: throw new Server.Bad("unrecognized command \"" + command + "\"");
404 println(tag+" OK "+command+" Completed. " +
405 (commandKey == LOGIN ? ("[CAPABILITY "+Printer.join(" ", api.capability())+"]") : ""));
408 } catch (Stream.EOF e) {
409 Log.info(this, "connection closed");
412 } catch (Server.Bad b) { println(tag==null ? "* BAD Invalid tag":(tag + " Bad " + b.toString())); Log.warn(this,b);
413 } catch (Server.No n) { println(tag==null?"* BAD Invalid tag":(tag+" No " + n.toString())); Log.warn(this,n);
417 private Parser.Token[] lastfetch = null; // hack
418 private boolean lastuid = false; // hack
419 private boolean selected = false;
420 private void selected() { if (!selected) throw new Server.Bad("no mailbox selected"); }
422 // Callbacks //////////////////////////////////////////////////////////////////////////////
424 public void expunge(int uid) { println("* " + uid + " EXPUNGE"); }
425 public void fetch(int n, int f, int size, Message m, int muid) { fetch(m, lastfetch, n, f, size, lastuid, muid); }
426 public void list(char sep, String mb, boolean sub, boolean p) {
427 println("* " + (sub?"LSUB":"LIST")+" ("+(p?"\\Noselect":"")+") \""+sep+"\" \""+mb+"\"");}
430 * Parse a fetch request <i>or</i> emit a fetch reply.
432 * To avoid duplicating tedious parsing logic, this function
433 * performs both of the following tasks:
434 * - parse the fetch request in Token[] t and return a fetch spec
435 * - emit a fetch reply for the parsed spec with respect to message m
437 private void fetch(Object o, Parser.Token[] t, int num, int flags, int size, boolean uid, int muid) {
438 Query q = o == null ? null : o instanceof Query ? (Query)o : null;
439 Message m = o == null ? null : o instanceof Message ? (Message)o : null;
440 boolean e = q == null;
442 // asynchronous flags update
444 println("* " + num + " FETCH (FLAGS " + Printer.flags(flags) + (uid?(" UID "+muid):"") + ")");
449 int spec = 0; // spec; see constants for flags
450 int start = 0, len = 0;
451 String[] headers = null;
452 StringBuffer r = new StringBuffer();
453 if (e) { r.append(num); r.append(" FETCH ("); }
454 int initlen = r.length();
456 boolean good = false;
457 for(int i=0; i<t.length; i++)
458 if ((t[i].type == Parser.Token.QUOTED || t[i].type == Parser.Token.ATOM) &&
459 t[i].astring().equalsIgnoreCase("UID")) good = true;
461 Parser.Token[] t2 = new Parser.Token[t.length + 1];
462 System.arraycopy(t, 0, t2, 0, t.length);
463 t2[t2.length - 1] = parser.token("UID");
464 lastfetch = (t = t2);
467 if (t.length == 0 && (t[0].type == Parser.Token.QUOTED || t[0].type == Parser.Token.ATOM)) {
468 if (t[0].astring().equalsIgnoreCase("ALL"))
469 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
470 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
471 else if (t[0].astring().equalsIgnoreCase("FULL"))
472 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"), parser.token("BODY"),
473 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
474 else if (t[0].astring().equalsIgnoreCase("FAST"))
475 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
476 parser.token("RFC822.SIZE") };
478 boolean looked_at_body = false;
479 for(int i=0; i<t.length; i++) {
480 if (r.length() > initlen) r.append(" ");
481 if (t[i] == null || t[i].s == null) continue;
482 String s = t[i].s.toUpperCase();
483 r.append(s.equalsIgnoreCase("BODY.PEEK")?"BODY":s);
484 if (s.equals("BODYSTRUCTURE")) { spec|=BODYSTRUCTURE;if(e){r.append(" ");r.append(Printer.bodystructure(m));}
485 } else if (s.equals("ENVELOPE")) { spec|=ENVELOPE; if(e){r.append(" ");r.append(Printer.envelope(m));}
486 } else if (s.equals("FLAGS")) { spec|=FLAGS; if(e){r.append(" ");r.append(Printer.flags(flags));}
487 } else if (s.equals("INTERNALDATE")) { spec|=INTERNALDATE; if(e){r.append(" ");r.append(Printer.date(m.arrival));}
488 } else if (s.equals("RFC822")) { spec|=RFC822; if(e){r.append(" ");r.append(Printer.message(m));}
489 } else if (s.equals("RFC822.TEXT")) { spec|=RFC822TEXT; if(e){r.append(" ");r.append(Printer.qq(m.getStream()));}
490 } else if (s.equals("RFC822.HEADER")){ spec|=HEADER; if(e){r.append(" ");r.append(Printer.qq(m.headers.getStream().append("\r\n")));}
491 } else if (s.equals("RFC822.SIZE")) { spec|=RFC822SIZE; if(e){r.append(" ");r.append(m.getLength());}
492 } else if (s.equals("UID")) { spec|=UID; if(e){r.append(" ");r.append(muid); }
493 } else if (!(s.equals("BODY.PEEK") || s.equals("BODY"))) { throw new Server.No("unknown fetch argument: " + s);
495 if (s.equalsIgnoreCase("BODY.PEEK")) spec |= PEEK;
496 looked_at_body = true;
497 if (i >= t.length - 1 || t[i+1].type != Parser.Token.LIST) {
498 // not sure why this was uncommented....
499 //spec |= BODYSTRUCTURE;
500 if (e) { r.append(" "); r.append(Printer.bodystructure(m)); } continue;
501 //if (e) { r.append(" "); r.append(Printer.qq(m.getBody().getStream())); } continue;
503 Fountain payload = Fountain.Util.create("");
505 Parser.Token[] list = t[++i].l();
506 s = list.length == 0 ? "" : list[0].s.toUpperCase();
508 if (list.length == 0) { spec |= RFC822TEXT; if(e) payload = m; }
509 else if (s.equals("") || s.equals("1")) { spec |= RFC822TEXT; if(e) payload = m; }
510 else if (s.equals("TEXT")) { spec |= RFC822TEXT; if(e) payload = m.getBody(); }
511 else if (s.equals("HEADER")) { spec |= HEADER; if(e) payload = Fountain.Util.concat(m.headers, Fountain.Util.create("\r\n")); }
512 else if (s.equals("HEADER.FIELDS")) { spec |= FIELDS; payload=Fountain.Util.create(headers(r,t[i].l()[1].sl(),false,m,e)); }
513 else if (s.equals("HEADER.FIELDS.NOT")) { spec |= FIELDSNOT; payload=Fountain.Util.create(headers(r,t[i].l()[1].sl(),true,m,e)); }
514 else if (s.equals("MIME")) { throw new Server.Bad("MIME not supported"); }
515 else throw new Server.Bad("unknown section type " + s);
517 if (i<t.length - 1 && (t[i+1].s != null && t[i+1].s.startsWith("<"))) {
519 s = t[i].s.substring(1, t[i].s.indexOf('>'));
520 int dot = s.indexOf('.');
521 start = dot == -1 ? Integer.parseInt(s) : Integer.parseInt(s.substring(0, s.indexOf('.')));
522 len = dot == -1 ? -1 : Integer.parseInt(s.substring(s.indexOf('.') + 1));
524 if (start == 0 && len == -1) {
525 } else if (len == -1) {
526 payload = Fountain.Util.subFountain(payload, start);
528 len = (int)Math.min(len, payload.getLength()-start);
529 payload = Fountain.Util.subFountain(payload, start, len);
532 r.append("<"+start+"> ");
535 if (e) r.append("] ");
537 if (e) r.append(Printer.qq(payload.getStream()));
540 if ((spec & PEEK) == 0 && looked_at_body && e)
541 api.addFlags(Query.imapNumber(new int[] { num, num }), Mailbox.Flag.SEEN, false, false);
544 println("* " + r.toString());
546 api.fetch(q, spec, headers, start, (len==-1?0:len), uid);
550 private String headers(StringBuffer r, String[] headers, boolean negate, Message m, boolean e) {
552 if (e) r.append(" (");
554 if(e) for(int j=0; j<headers.length; j++) {
555 r.append(headers[j] + (j<headers.length-1?" ":""));
556 if (m.headers.get(headers[j]) != null) payload += headers[j]+": "+m.headers.get(headers[j])+"\r\n";
559 throw new Server.No("HEADERS.NOT temporarily disaled");
561 if (e) for(int j=0; j<headers.length; j++) r.append(headers[j] + (j<headers.length-1?" ":""));
562 if(e) { OUTER: for(Enumeration x=m.headers.keys(); x.hasMoreElements();) {
563 String key = (String)x.nextElement();
564 for(int j=0; j<headers.length; j++) if (key.equalsIgnoreCase(headers[j])) continue OUTER;
565 payload += key + ": " + m.headers.get(key)+"\r\n";
569 if (e) r.append(")");
570 return payload + "\r\n";
573 private static final Hashtable commands = new Hashtable();
574 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
575 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
576 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
577 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
578 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
579 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
580 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
581 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
582 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
583 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
584 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
585 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
586 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
587 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
588 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
589 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
590 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
591 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
592 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
593 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
594 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
595 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
596 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
597 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
598 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
599 private static final int SEARCH = 25; static { commands.put("SEARCH", new Integer(SEARCH)); }
602 public static class Parser {
603 private Stream stream;
604 public Parser(Stream from) { this.stream = from; }
605 public Token token(String s) { return new Token(s); }
606 protected Query query(int max, int maxuid) {
612 Parser.Token t = token(false);
613 if (t == null) break;
614 if (t.type == t.LIST) throw new Server.No("nested queries not yet supported FIXME");
615 else if (t.type == t.SET) return Query.imapNumber(t.set(max));
616 s = t.atom().toUpperCase();
617 if (s.equals("NOT")) return Query.not(query(max, maxuid));
618 if (s.equals("OR")) return Query.or(query(max, maxuid), query(max, maxuid)); // FIXME parse rest of list
619 if (s.equals("AND")) return Query.and(query(max, maxuid), query(max, maxuid));
621 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
622 if (s.equals("ANSWERED")) q = Query.answered();
623 else if (s.equals("DELETED")) q = Query.deleted();
624 else if (s.equals("ALL")) q = Query.all();
625 else if (s.equals("DRAFT")) q = Query.draft();
626 else if (s.equals("FLAGGED")) q = Query.flagged();
627 else if (s.equals("RECENT")) q = Query.recent();
628 else if (s.equals("SEEN")) q = Query.seen();
629 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
630 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
631 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
632 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
633 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
634 else if (s.equals("CC")) q = Query.header("cc", token().astring());
635 else if (s.equals("FROM")) q = Query.header("from", token().astring());
636 else if (s.equals("TO")) q = Query.header("to", token().astring());
637 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
638 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
639 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
640 else if (s.equals("BODY")) q = Query.body(token().astring());
641 else if (s.equals("TEXT")) q = Query.full(token().astring());
642 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
643 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
644 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
645 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
646 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
647 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
648 else if (s.equals("UID")) q = Query.uid(token().set(max));
649 q = not ? Query.not(q) : q;
650 ret = ret == null ? q : Query.and(ret, q);
655 private static void bad(String s) { throw new Server.Bad(s); }
657 public final byte type;
658 private final String s;
659 private final Parser.Token[] l;
661 private static final byte NIL = 0, LIST = 1, QUOTED = 2, NUMBER = 3, ATOM = 4, BAREWORD = 5, SET = 6;
662 public Token() { this.s = null; n = 0; l = null; type = NIL; }
663 public Token(String s) { this(s, false); }
664 public Token(String s, boolean quoted) { this.s = s; n = 0; l = null; type = quoted ? QUOTED : ATOM; }
665 public Token(Parser.Token[] list) { this.s = null; n = 0; l = list; type = LIST; }
666 public Token(int number) { this.s = null; n = number; l = null; type = NUMBER; }
668 public String flag() { if (type != ATOM) bad("expected a flag"); return s; }
669 public int n() { if (type != NUMBER) bad("expected number"); return n; }
670 public int nz() { int n = n(); if (n == 0) bad("expected nonzero number"); return n; }
671 public String q() { if (type == NIL) return null; if (type != QUOTED) bad("expected qstring"); return s; }
672 public Parser.Token[] l() { if (type == NIL) return null; if (type != LIST) bad("expected list"); return l; }
673 public Parser.Token[] lx() {
674 if (type == LIST) return l;
678 Parser.Token t = token(false);
679 if (t == null) break;
682 Parser.Token[] ret = new Parser.Token[v.size()];
686 public String nstring() { if (type==NIL) return null; if (type!=QUOTED) bad("expected nstring"); return s; }
687 public String astring() {
688 if (type != ATOM && type != QUOTED) bad("expected atom or string");
689 if (s == null) bad("astring cannot be null");
691 public String[] sl() {
692 if (type == NIL) return null;
693 if (type != LIST) bad("expected list");
694 String[] ret = new String[l.length];
695 for(int i=0; i<ret.length; i++) ret[i] = l[i].s;
699 if (type != LIST) bad("expected flag list");
701 for(int i=0; i<l.length; i++) {
702 String flag = l[i].s;
703 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
704 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
705 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
706 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
707 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
708 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
712 public int[] set(int largest) {
713 if (type != ATOM) bad("expected a messageid set");
714 Vec.Int ids = new Vec.Int();
715 StringTokenizer st = new StringTokenizer(s, ",");
716 while(st.hasMoreTokens()) {
717 String s = st.nextToken();
718 if (s.indexOf(':') == -1) {
720 ids.addElement(largest);
721 ids.addElement(largest);
723 ids.addElement(Integer.parseInt(s));
724 ids.addElement(Integer.parseInt(s));
727 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
728 String end_s = s.substring(s.indexOf(':')+1);
729 int end = end_s.equals("*") ? largest : Integer.parseInt(end_s);
730 for(int j=Math.min(start,end); j<=Math.max(start,end); j++) {
738 if (type != QUOTED && type != ATOM) bad("Expected quoted or unquoted date");
739 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
740 } catch (ParseException p) { throw new Server.Bad("invalid date format; " + p); }
742 public Date datetime() {
743 if (type != QUOTED) bad("Expected quoted datetime");
744 try { return new SimpleDateFormat("dd-MMM-yyyy hh:mm:ss zzzz").parse(s.trim());
745 } catch (ParseException p) { throw new Server.Bad("invalid datetime format " + s + " : " + p); }
747 public String atom() {
748 if (type != ATOM) bad("expected atom");
749 for(int i=0; i<s.length(); i++) {
750 char c = s.charAt(i);
751 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*' || c == '\"' | c == '\\')
752 bad("invalid char in atom: " + c);
758 public void newline() { stream.readln(); }
760 public Token token() { return token(true); }
761 public Token token(boolean freak) {
762 Vec toks = new Vec();
763 StringBuffer sb = new StringBuffer();
764 char c = stream.getc(); while (c == ' ') c = stream.getc();
765 if (c == '\r' || c == '\n') { if (freak) bad("unexpected end of line"); return null; }
767 while(stream.peekc() != '}') sb.append(stream.getc());
769 stream.println("+ Ready when you are...");
770 int octets = Integer.parseInt(sb.toString());
771 while(stream.peekc() == ' ') stream.getc(); // whitespace
772 while(stream.peekc() == '\n' || stream.peekc() == '\r') stream.getc();
773 byte[] bytes = new byte[octets];
775 while(numread < bytes.length) {
776 int n = stream.read(bytes, numread, bytes.length - numread);
777 if (n == -1) bad("end of stream while reading IMAP qstring");
780 return new Token(new String(bytes), true);
781 } else if (c == '\"') {
784 if (c == '\\') sb.append(stream.getc());
785 else if (c == '\"') break;
788 return new Token(sb.toString(), true);
790 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
791 } else if (c == ']' || c == ')') { return null;
792 } else if (c == '[' || c == '(') {
794 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
795 Token[] ret = new Token[toks.size()];
797 return new Token(ret);
802 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
803 c == '{' || c == '\n' || c == '\r')
804 return new Token(sb.toString(), false);
810 public static class Printer {
811 static String quotify(String s){
812 return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
813 static String quotify(Date d) {
814 return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
815 static String address(Address a) {
816 return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
817 public static String addressList(Object a) {
818 if (a == null) return "NIL";
819 if (a instanceof Address) return "("+address((Address)a)+")";
820 if (a instanceof String) return "("+address(Address.parse((String)a))+")";
821 Address[] aa = (Address[])a;
822 StringBuffer ret = new StringBuffer();
824 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
826 return ret.toString();
828 static String flags(Mailbox.Iterator it) {
830 ((it.getFlags() & Mailbox.Flag.DELETED)!=0 ? "\\Deleted " : "") +
831 ((it.getFlags() & Mailbox.Flag.SEEN)!=0 ? "\\Seen " : "") +
832 ((it.getFlags() & Mailbox.Flag.FLAGGED)!=0 ? "\\Flagged " : "") +
833 ((it.getFlags() & Mailbox.Flag.DRAFT)!=0 ? "\\Draft " : "") +
834 ((it.getFlags() & Mailbox.Flag.ANSWERED)!=0 ? "\\Answered " : "") +
835 ((it.getFlags() & Mailbox.Flag.RECENT)!=0 ? "\\Recent " : "");
837 static String flags(int flags) {
839 (((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED) ? "\\Deleted " : "") +
840 (((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) ? "\\Seen " : "") +
841 (((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED) ? "\\Flagged " : "") +
842 (((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT) ? "\\Draft " : "") +
843 (((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED)? "\\Answered " : "") +
844 (((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT) ? "\\Recent " : "");
845 if (ret.endsWith(" ")) ret = ret.substring(0, ret.length() - 1);
848 static String bodystructure(Message m) {
850 return "(\"TEXT\" \"PLAIN\" (\"CHARSET\" \"ISO-8859-1\") NIL NIL \"7BIT\" "+m.getLength()+" "+m.getNumLines()+")";
852 static String message(Message m) { return m.toString(); }
853 static String date(Date d) { return "\""+d.toString()+"\""; }
854 static String envelope(Message m) {
856 "(" + quotify(m.arrival.toString()) +
857 " " + quotify(m.subject) +
858 " " + addressList(m.from) +
859 " " + addressList(m.headers.get("sender")) +
860 " " + addressList(m.replyto) +
861 " " + addressList(m.to) +
862 " " + addressList(m.cc) +
863 " " + addressList(m.bcc) +
864 " " + quotify((String)m.headers.get("in-reply-to")) +
865 " " + quotify(m.messageid) +
870 public static String qq(Stream stream) {
871 StringBuffer sb = new StringBuffer();
872 stream.transcribe(sb);
873 return qq(sb.toString());
875 public static String qq(String s) {
876 StringBuffer ret = new StringBuffer();
878 ret.append(s.getBytes().length);
883 return ret.toString();
886 private static String join(int[] nums) {
887 StringBuffer ret = new StringBuffer();
888 for(int i=0; i<nums.length; i++) {
890 if (i<nums.length-1) ret.append(' ');
892 return ret.toString();
894 private static String join(String delimit, String[] stuff) {
895 StringBuffer ret = new StringBuffer();
896 for(int i=0; i<stuff.length; i++) {
897 ret.append(stuff[i]);
898 if (i<stuff.length - 1) ret.append(delimit);
900 return ret.toString();
905 // Main //////////////////////////////////////////////////////////////////////////////
907 public static final int
908 PEEK=0x1, BODYSTRUCTURE=0x2, ENVELOPE=0x4, FLAGS=0x8, INTERNALDATE=0x10, FIELDS=0x800, FIELDSNOT=0x1000,
909 RFC822=0x20, RFC822TEXT=0x40, RFC822SIZE=0x80, HEADERNOT=0x100, UID=0x200, HEADER=0x400;