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.
5 package org.ibex.mail.protocol;
7 import org.ibex.crypto.*;
8 import org.ibex.jinetd.Listener;
9 import org.ibex.jinetd.Worker;
10 import org.ibex.mail.*;
11 import org.ibex.util.*;
12 import org.ibex.mail.target.*;
18 // FIXME: this is valid LSUB "" asdfdas%*%*%*%*SFEFGWEF
19 // FIXME: be very careful about where/when we quotify stuff
20 // FIXME: 'UID FOO 100:*' must match at least one message even if all UIDs less than 100
21 // FIXME: LIST should return INBOX if applicable
25 // RFC 3501: IMAPv4 with clarifications
29 // FEATURE: make sure we're being case-insensitive enough; probably want to upcase atom()
30 // FEATURE: MIME-queries and BODYSTRUCTURE
31 // FEATURE: READ-WRITE / READ-ONLY status on SELECT
32 // FEATURE: pipelining
33 // FEATURE: support [charset]
35 // FEATURE: subscriptions
36 // FEATURE: tune for efficiency
38 // FEATURE: asynchronous client notifications (need to re-read RFC)
43 public static final float version = (float)0.2;
45 // API Class //////////////////////////////////////////////////////////////////////////////
47 public static interface Client {
48 public void expunge(int uid);
49 public void list(char separator, String mailbox, boolean lsub, boolean phantom);
50 public void fetch(int num, int flags, int size, Message m, int muid); // m may be null or incomplete
53 public static interface Server {
54 public void setClient(IMAP.Client client);
55 public String[] capability();
56 public Hashtable id(Hashtable clientId);
57 public void copy(Query q, String to);
59 public void unselect();
60 public void delete(String m);
61 public void create(String m);
62 public void append(String m, int flags, Date arrival, String body);
66 public void subscribe(String mailbox);
67 public void unsubscribe(String mailbox);
68 public int unseen(String mailbox);
69 public int recent(String mailbox);
70 public int count(String mailbox);
71 public int uidNext(String mailbox);
72 public int uidValidity(String mailbox);
73 public int[] search(Query q, boolean uid);
74 public void rename(String from, String to);
75 public void select(String mailbox, boolean examineOnly);
76 public void setFlags(Query q, int flags, boolean uid, boolean silent);
77 public void removeFlags(Query q, int flags, boolean uid, boolean silent);
78 public void addFlags(Query q, int flags, boolean uid, boolean silent);
79 public void expunge();
80 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid);
81 public void lsub(String start, String ref);
82 public void list(String start, String ref);
83 public static class Exn extends MailException { public Exn(String s) { super(s); } }
84 public static class Bad extends Exn { public Bad(String s) { super(s); } }
85 public static class No extends Exn { public No(String s) { super(s); } }
89 // MailboxWrapper //////////////////////////////////////////////////////////////////////////////
91 /** wraps an IMAP.Server interface around a Mailbox */
92 public static class MailboxWrapper implements Server {
94 public static final char sep = '.';
97 Mailbox selected = null;
99 Mailbox selected() { if (selected == null) throw new Bad("no mailbox selected"); return selected; }
103 public MailboxWrapper(Login auth, Client c) { this.auth=auth; this.client=c;}
104 public void setClient(IMAP.Client client) { }
106 private Mailbox mailbox(String name, boolean create) { return mailbox(name, create, true); }
107 private Mailbox mailbox(String name, boolean create, boolean throwexn) {
108 if (name.equalsIgnoreCase("inbox")) return inbox;
110 for(StringTokenizer st = new StringTokenizer(name, sep + ""); st.hasMoreTokens();)
111 if ((m = m.slash(st.nextToken(), create)) == null) {
112 if (throwexn) throw new Server.No("no such mailbox " + name);
118 // FEATURE: not accurate when a wildcard and subsequent non-wildcards both match a single component
119 public void lsub(String start, String ref) { list(start, ref, true); }
120 public void list(String start, String ref) { list(start, ref, false); }
121 public void list(String start, String ref, boolean lsub) {
122 if (ref.length() == 0) { client.list(sep, start, lsub, false); return; }
123 while (start.endsWith(""+sep)) start = start.substring(0, start.length() - 1);
124 if (ref.endsWith("%")) ref = ref + sep;
125 String[] children = (start.length() == 0 ? root : mailbox(start, false)).children();
126 for(int i=0; i<children.length; i++) {
127 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? sep+"" : "") + s;
128 if (mailbox(kid, false) == null) continue;
129 boolean phantom = mailbox(kid, false).phantom();
131 if (pre.length() == 0) {
132 if (s.length() == 0) client.list(sep, kid, lsub, phantom);
133 } else switch(pre.charAt(0)) {
134 case sep: if (s.length() == 0) list(kid, pre.substring(1), lsub); break;
135 case '%': client.list(sep,kid,lsub,phantom);pre=pre.substring(1); s = ""; continue;
136 case '*': client.list(sep,kid,lsub,phantom);list(kid,pre,lsub);pre=pre.substring(1); break;
137 default: if (s.length()==0) break;
138 if (s.charAt(0) != pre.charAt(0)) break;
139 s = s.substring(1); pre = pre.substring(1); continue;
146 public String[] capability() { return new String[] { "IMAP4rev1" , "UNSELECT", "ID" }; }
147 public Hashtable id(Hashtable clientId) {
148 Hashtable response = new Hashtable();
149 response.put("name", IMAP.class.getName());
150 response.put("version", version + "");
151 response.put("os", System.getProperty("os.name", null));
152 response.put("os-version", System.getProperty("os.version", null));
153 response.put("vendor", "none");
154 response.put("support-url", "http://mail.ibex.org/");
158 public void copy(Query q, String to) { copy(q, mailbox(to, false)); }
159 /* */ void copy(Query q, Mailbox to) {
160 for(Mailbox.Iterator it=selected().iterator(q);it.next();) to.add(it.cur(), it.flags() | Mailbox.Flag.RECENT); }
162 public void unselect() { selected = null; }
163 public void delete(String m0) { delete(mailbox(m0,false)); }
164 public void delete(Mailbox m) { if (!m.equals(inbox)) m.destroy(false); else throw new Bad("can't delete inbox"); }
165 public void create(String m) { mailbox(m, true, false); }
166 public void append(String m,int f,Date a,String b) { try {
167 mailbox(m,false).add(Message.newMessage(new Stream(b)),f|Mailbox.Flag.RECENT);
168 } catch (Message.Malformed e) { throw new No(e.getMessage()); } }
169 public void check() { }
170 public void noop() { }
171 public void logout() { }
172 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); }
173 public void expunge() { for(Mailbox.Iterator it = selected().iterator(Query.deleted());it.next();) expunge(it); }
174 public void expunge(Mailbox.Iterator it) { client.expunge(it.uid()); it.delete(); }
175 public void subscribe(String mailbox) { }
176 public void unsubscribe(String mailbox) { }
177 public int unseen(String mailbox) { return mailbox(mailbox, false).count(Query.not(Query.seen())); }
178 public int recent(String mailbox) { return mailbox(mailbox, false).count(Query.recent()); }
179 public int count(String mailbox) { return mailbox(mailbox, false).count(Query.all()); }
180 public int uidNext(String mailbox) { return mailbox(mailbox, false).uidNext(); }
181 public int uidValidity(String mailbox) { return mailbox(mailbox, false).uidValidity(); }
182 public void select(String mailbox, boolean examineOnly) {
183 selected = mailbox(mailbox, false);
186 public int[] search(Query q, boolean uid) {
187 Vec.Int vec = new Vec.Int();
188 for(Mailbox.Iterator it = selected().iterator(q); it.next();) {
189 vec.addElement(uid ? it.uid() : it.num());
195 public void setFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 0, silent); }
196 public void addFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 1, silent); }
197 public void removeFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, -1, silent); }
199 private void doFlags(Query q, int flags, boolean uid, int style, boolean silent) {
200 for(Mailbox.Iterator it = selected().iterator(q);it.next();) {
201 boolean recent = it.recent();
202 if (style == -1) it.removeFlags(flags);
203 else if (style == 0) it.setFlags(flags);
204 else if (style == 1) it.addFlags(flags);
207 //if (!silent) client.fetch(it.num(), it.flags(), -1, null, it.uid());
210 public void rename(String from0, String to) {
211 Mailbox from = mailbox(from0, false);
212 if (from.equals(inbox)) { from.copy(Query.all(), mailbox(to, true)); }
213 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), mailbox(to, true)); from.destroy(false); }
214 else from.rename(to);
216 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid) {
217 for(Mailbox.Iterator it = selected().iterator(q); it.next(); ) {
218 Message message = ((spec & (BODYSTRUCTURE | ENVELOPE | INTERNALDATE | FIELDS | FIELDSNOT | RFC822 |
219 RFC822TEXT | RFC822SIZE | HEADERNOT | HEADER)) != 0) ? it.cur() : null;
220 int size = message == null ? 0 : message.size();
221 client.fetch(it.num(), it.flags(), size, message, it.uid());
228 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
230 /** takes an IMAP.Server and exposes it to the world as an IMAP server on a TCP socket */
231 public static class Listener implements Worker, Client {
232 String selectedName = null;
233 Mailbox inbox = null, root = null;
235 Parser parser = null;
236 Connection conn = null;
238 public Listener(Login auth) { api = new IMAP.MailboxWrapper(this.auth = auth, this); }
239 Parser.Token token() { return parser.token(); }
240 void println(String s) { conn.println(s); }
241 void newline() { parser.newline(); }
242 Query query() { return parser.query(); }
244 public void login(String u, String p) {
246 if ((ret = auth.login(u,p,IMAP.class)) == null) throw new Server.No("Login failed.");
247 if (ret instanceof IMAP.Server) {
248 api = (IMAP.Server)ret;
251 Account account = (Account)ret;
252 ((MailboxWrapper)api).root = root = account.getMailbox(IMAP.class);
253 Log.warn(this, "logged in, root="+root);
254 ((MailboxWrapper)api).inbox = inbox = root.slash("INBOX", false);
255 if (inbox == null) ((MailboxWrapper)api).inbox = inbox = root;
259 public void handleRequest(Connection conn) {
261 parser = new Parser(conn);
262 conn.setTimeout(30 * 60 * 1000);
263 println("* OK " + conn.vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
264 for(String tag = null;; newline()) try {
267 tag = null; Parser.Token tok = token(); if (tok == null) return; tag = tok.astring();
268 String command = token().atom();
269 if (command.equalsIgnoreCase("UID")) { uid = true; command = token().atom(); }
270 int commandKey = ((Integer)commands.get(command.toUpperCase())).intValue();
272 case LOGIN: login(token().astring(), token().astring()); break;
273 case CAPABILITY: println("* CAPABILITY " + Printer.join(" ", api.capability())); break;
274 case AUTHENTICATE: throw new Server.No("AUTHENTICATE not supported");
275 case LOGOUT: api.logout(); println("* BYE"); conn.close(); return;
276 case LIST: api.list(token().q(), token().astring()); break; /*astring is a hack for EUDORA*/
277 case LSUB: api.lsub(token().q(), token().q()); break;
278 case SUBSCRIBE: api.subscribe(token().astring()); break;
279 case UNSUBSCRIBE: api.unsubscribe(token().astring()); break;
280 case RENAME: api.rename(token().astring(), token().astring()); break;
281 case COPY: selected(); api.copy(Query.set(uid, token().set()), token().astring()); break;
282 case DELETE: api.delete(token().atom()); break;
283 case CHECK: selected(); api.check(); break;
284 case NOOP: api.noop(); break;
285 case CLOSE: selected(); api.close(); break;
286 case EXPUNGE: selected(); api.expunge(); break;
287 case UNSELECT: selected(); api.unselect(); selected = false; break;
288 case CREATE: api.create(token().astring()); break;
289 case FETCH: selected(); fetch(Query.set(lastuid=uid, token().set()),
290 lastfetch=token().lx(), 0, 0, 0, uid, 0); break;
291 case SEARCH: selected(); println("* SEARCH " + Printer.join(api.search(query(), uid))); break;
294 String mailbox = token().astring();
295 api.select(mailbox, commandKey==EXAMINE);
296 println("* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
297 println("* " + api.count(mailbox) + " EXISTS");
298 println("* " + api.recent(mailbox) + " RECENT");
299 println("* OK [UIDVALIDITY " + api.uidValidity(mailbox) + "] UIDs valid");
300 println("* OK [UIDNEXT " + api.uidNext(mailbox) + "]");
301 println("* OK [PERMANENTFLAGS (\\Seen \\Draft \\Answered \\Deleted)]");
305 String mailbox = token().astring(); // hack for GNUS buggy client
306 Parser.Token[] list = token().l();
307 String response = "";
308 for(int i=0; i<list.length; i++) {
309 String s = list[i].atom().toUpperCase();
310 if (i>0) response += " ";
311 if (s.equals("MESSAGES")) response += "MESSAGES " + api.count(mailbox);
312 if (s.equals("RECENT")) response += "RECENT " + api.recent(mailbox);
313 if (s.equals("UIDNEXT")) response += "UIDNEXT " + api.uidNext(mailbox);
314 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + api.uidValidity(mailbox);
315 if (s.equals("UNSEEN")) response += "UNSEEN " + api.unseen(mailbox);
317 println("* STATUS " + mailbox + " (" + response + ")");
321 String m = token().astring();
323 Date arrival = new Date();
324 Parser.Token t = token();
325 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
326 if (t.type != t.QUOTED) { arrival = t.datetime(); t = token(); }
327 api.append(m, flags, arrival, t.q());
331 Query q = uid ? Query.uid(token().set()) : Query.num(token().set());
332 String s = token().atom().toUpperCase();
333 int flags = token().flags();
334 if (s.equals("FLAGS")) api.setFlags(q, flags, uid, false);
335 else if (s.equals("+FLAGS")) api.addFlags(q, flags, uid, false);
336 else if (s.equals("-FLAGS")) api.removeFlags(q, flags, uid, false);
337 else if (s.equals("FLAGS.SILENT")) api.setFlags(q, flags, uid, true);
338 else if (s.equals("+FLAGS.SILENT")) api.addFlags(q, flags, uid, true);
339 else if (s.equals("-FLAGS.SILENT")) api.removeFlags(q, flags, uid, true);
340 else throw new Server.Bad("unknown STORE specifier " + s);
342 default: throw new Server.Bad("unrecognized command \"" + command + "\"");
344 println(tag+" OK "+command+" Completed. " +
345 (commandKey == LOGIN ? ("[CAPABILITY "+Printer.join(" ", api.capability())+"]") : ""));
346 } catch (Server.Bad b) { println(tag==null ? "* BAD Invalid tag":(tag + " Bad " + b.toString()));
347 } catch (Server.No n) { println(tag==null?"* BAD Invalid tag":(tag+" No " + n.toString())); }
350 private Parser.Token[] lastfetch = null; // hack
351 private boolean lastuid = false; // hack
352 private boolean selected = false;
353 private void selected() { if (!selected) throw new Server.Bad("no mailbox selected"); }
355 // Callbacks //////////////////////////////////////////////////////////////////////////////
357 public void expunge(int uid) { println("* " + uid + " EXPUNGE"); }
358 public void fetch(int n, int f, int size, Message m, int muid) { fetch(m, lastfetch, n, f, size, lastuid, muid); }
359 public void list(char sep, String mb, boolean sub, boolean p) {
360 println("* " + (sub?"LSUB":"LIST")+" ("+(p?"\\Noselect":"")+") \""+sep+"\" \""+mb+"\"");}
363 * Parse a fetch request <i>or</i> emit a fetch reply.
365 * To avoid duplicating tedious parsing logic, this function
366 * performs both of the following tasks:
367 * - parse the fetch request in Token[] t and return a fetch spec
368 * - emit a fetch reply for the parsed spec with respect to message m
370 private void fetch(Object o, Parser.Token[] t, int num, int flags, int size, boolean uid, int muid) {
371 Query q = o instanceof Query ? (Query)o : null;
372 Message m = o instanceof Message ? (Message)o : null;
373 boolean e = q == null;
376 int spec = 0; // spec; see constants for flags
377 String[] headers = null;
378 int start = -1, end = -1;
379 StringBuffer r = new StringBuffer();
380 if (e) { r.append(uid ? muid : num); r.append(" FETCH ("); }
381 int initlen = r.length();
383 boolean good = false;
384 for(int i=0; i<t.length; i++)
385 if ((t[i].type == Parser.Token.QUOTED || t[i].type == Parser.Token.ATOM) &&
386 t[i].astring().equalsIgnoreCase("UID")) good = true;
388 Parser.Token[] t2 = new Parser.Token[t.length + 1];
389 System.arraycopy(t, 0, t2, 0, t.length);
390 t2[t2.length - 1] = parser.token("UID");
391 lastfetch = (t = t2);
394 if (t.length == 0 && (t[0].type == Parser.Token.QUOTED || t[0].type == Parser.Token.ATOM)) {
395 if (t[0].astring().equalsIgnoreCase("ALL"))
396 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
397 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
398 else if (t[0].astring().equalsIgnoreCase("FULL"))
399 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"), parser.token("BODY"),
400 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
401 else if (t[0].astring().equalsIgnoreCase("FAST"))
402 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
403 parser.token("RFC822.SIZE") };
405 for(int i=0; i<t.length; i++) {
406 if (r.length() > initlen) r.append(" ");
407 if (t[i] == null || t[i].s == null) continue;
408 String s = t[i].s.toUpperCase();
409 r.append(s.equalsIgnoreCase("BODY.PEEK")?"BODY":s);
410 if (s.equals("BODYSTRUCTURE")) { spec|=BODYSTRUCTURE;if(e){r.append(" ");r.append(Printer.bodystructure(m));}
411 } else if (s.equals("ENVELOPE")) { spec|=ENVELOPE; if(e){r.append(" ");r.append(Printer.envelope(m));}
412 } else if (s.equals("FLAGS")) { spec|=FLAGS; if(e){r.append(" ");r.append(Printer.flags(flags));}
413 } else if (s.equals("INTERNALDATE")) { spec|=INTERNALDATE; if(e){r.append(" ");r.append(Printer.date(m.arrival));}
414 } else if (s.equals("RFC822")) { spec|=RFC822; if(e){r.append(" ");r.append(Printer.message(m));}
415 } else if (s.equals("RFC822.TEXT")) { spec|=RFC822TEXT; if(e){r.append(" ");r.append(Printer.qq(m.body));}
416 } else if (s.equals("RFC822.HEADER")){ spec|=HEADER;if(e){r.append(" ");r.append(Printer.qq(m.headers.raw+"\r\n"));}
417 } else if (s.equals("RFC822.SIZE")) { spec|=RFC822SIZE; if(e){r.append(" ");r.append(m.size());}
418 } else if (s.equals("UID")) { spec|=UID; if(e){r.append(" ");r.append(muid); }
419 } else if (!(s.equals("BODY.PEEK") || s.equals("BODY"))) { throw new Server.No("unknown fetch argument: " + s);
421 if (s.equalsIgnoreCase("BODY.PEEK")) spec |= PEEK;
422 //else if (e) api.addFlags(Query.num(new int[] { num, num }), Mailbox.Flag.SEEN, false, false);
423 if (i >= t.length - 1 || t[i+1].type != Parser.Token.LIST) {
424 spec |= BODYSTRUCTURE;
425 if (e) { r.append(" "); r.append(Printer.bodystructure(m)); } continue;
426 //{ if (e) { r.append(" "); r.append(Printer.qq(m.body)); } continue; }
430 Parser.Token[] list = t[++i].l();
431 s = list.length == 0 ? "" : list[0].s.toUpperCase();
433 if (list.length == 0) { spec |= RFC822TEXT; if(e) payload = m.headers.raw+"\r\n"+m.body; }
434 else if (s.equals("") || s.equals("1")) { spec |= RFC822TEXT; if(e) payload = m.headers.raw+"\r\n"+m.body; }
435 else if (s.equals("TEXT")) { spec |= RFC822TEXT; if(e) payload = m.body; }
436 else if (s.equals("HEADER")) { spec |= HEADER; if(e) payload = m.headers.raw+"\r\n"; }
437 else if (s.equals("HEADER.FIELDS")) { spec |= FIELDS; payload=headers(r,t[i].l()[1].sl(),false,m,e); }
438 else if (s.equals("HEADER.FIELDS.NOT")) { spec |= FIELDSNOT; payload=headers(r,t[i].l()[1].sl(),true,m,e); }
439 else if (s.equals("MIME")) { throw new Server.Bad("MIME not supported"); }
440 else throw new Server.Bad("unknown section type " + s);
441 if (i<t.length - 1 && (t[i+1].s != null && t[i+1].s.startsWith("<"))) {
443 s = t[i].s.substring(1, t[i].s.indexOf('>'));
444 int dot = s.indexOf('.');
445 start = dot == -1 ? Integer.parseInt(s) : Integer.parseInt(s.substring(0, s.indexOf('.')));
446 end = dot == -1 ? -1 : Integer.parseInt(s.substring(s.indexOf('.') + 1));
447 if (e) { payload = payload.substring(start, Math.min(end+1,payload.length())); r.append("<"+start+">"); }
449 if (e) { r.append("] "); r.append(Printer.qq(payload)); }
454 println("* " + r.toString());
456 api.fetch(q, spec, headers, start, end, uid);
460 private String headers(StringBuffer r, String[] headers, boolean negate, Message m, boolean e) {
462 if (e) r.append(" (");
464 if(e) for(int j=0; j<headers.length; j++) {
465 r.append(headers[j] + (j<headers.length-1?" ":""));
466 if (m.headers.gets(headers[j]) != null) payload += headers[j]+": "+m.headers.gets(headers[j])+"\r\n";
469 throw new Server.No("HEADERS.NOT temporarily disaled");
471 if (e) for(int j=0; j<headers.length; j++) r.append(headers[j] + (j<headers.length-1?" ":""));
472 if(e) { OUTER: for(Enumeration x=m.headers.keys(); x.hasMoreElements();) {
473 String key = (String)x.nextElement();
474 for(int j=0; j<headers.length; j++) if (key.equalsIgnoreCase(headers[j])) continue OUTER;
475 payload += key + ": " + m.headers.gets(key)+"\r\n";
479 if (e) r.append(")");
480 return payload + "\r\n";
483 private static final Hashtable commands = new Hashtable();
484 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
485 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
486 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
487 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
488 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
489 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
490 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
491 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
492 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
493 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
494 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
495 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
496 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
497 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
498 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
499 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
500 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
501 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
502 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
503 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
504 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
505 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
506 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
507 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
508 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
509 private static final int SEARCH = 25; static { commands.put("SEARCH", new Integer(SEARCH)); }
512 public static class Parser {
513 private Stream stream;
514 public Parser(Stream from) { this.stream = from; }
515 public Token token(String s) { return new Token(s); }
516 protected Query query() {
521 Parser.Token t = token(false);
522 if (t == null) break;
523 if (t.type == t.LIST) throw new Server.No("nested queries not yet supported FIXME");
524 else if (t.type == t.SET) return Query.num(t.set());
525 s = t.atom().toUpperCase();
526 if (s.equals("NOT")) { not = true; continue; }
527 if (s.equals("OR")) return Query.or(query(), query()); // FIXME parse rest of list
528 if (s.equals("AND")) return Query.and(query(), query());
530 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
531 if (s.equals("ANSWERED")) q = Query.answered();
532 else if (s.equals("DELETED")) q = Query.deleted();
533 else if (s.equals("ALL")) q = Query.all();
534 else if (s.equals("DRAFT")) q = Query.draft();
535 else if (s.equals("FLAGGED")) q = Query.flagged();
536 else if (s.equals("RECENT")) q = Query.recent();
537 else if (s.equals("SEEN")) q = Query.seen();
538 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
539 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
540 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
541 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
542 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
543 else if (s.equals("CC")) q = Query.header("cc", token().astring());
544 else if (s.equals("FROM")) q = Query.header("from", token().astring());
545 else if (s.equals("TO")) q = Query.header("to", token().astring());
546 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
547 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
548 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
549 else if (s.equals("BODY")) q = Query.body(token().astring());
550 else if (s.equals("TEXT")) q = Query.full(token().astring());
551 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
552 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
553 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
554 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
555 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
556 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
557 else if (s.equals("UID")) q = Query.uid(token().set());
558 return not ? Query.not(q) : q;
561 private static void bad(String s) { throw new Server.Bad(s); }
563 public final byte type;
564 private final String s;
565 private final Parser.Token[] l;
567 private static final byte NIL = 0, LIST = 1, QUOTED = 2, NUMBER = 3, ATOM = 4, BAREWORD = 5, SET = 6;
568 public Token() { this.s = null; n = 0; l = null; type = NIL; }
569 public Token(String s) { this(s, false); }
570 public Token(String s, boolean quoted) { this.s = s; n = 0; l = null; type = quoted ? QUOTED : ATOM; }
571 public Token(Parser.Token[] list) { this.s = null; n = 0; l = list; type = LIST; }
572 public Token(int number) { this.s = null; n = number; l = null; type = NUMBER; }
574 public String flag() { if (type != ATOM) bad("expected a flag"); return s; }
575 public int n() { if (type != NUMBER) bad("expected number"); return n; }
576 public int nz() { int n = n(); if (n == 0) bad("expected nonzero number"); return n; }
577 public String q() { if (type == NIL) return null; if (type != QUOTED) bad("expected qstring"); return s; }
578 public Parser.Token[] l() { if (type == NIL) return null; if (type != LIST) bad("expected list"); return l; }
579 public Parser.Token[] lx() {
580 if (type == LIST) return l;
584 Parser.Token t = token(false);
585 if (t == null) break;
588 Parser.Token[] ret = new Parser.Token[v.size()];
592 public String nstring() { if (type==NIL) return null; if (type!=QUOTED) bad("expected nstring"); return s; }
593 public String astring() {
594 if (type != ATOM && type != QUOTED) bad("expected atom or string");
595 if (s == null) bad("astring cannot be null");
597 public String[] sl() {
598 if (type == NIL) return null;
599 if (type != LIST) bad("expected list");
600 String[] ret = new String[l.length];
601 for(int i=0; i<ret.length; i++) ret[i] = l[i].s;
605 if (type != LIST) bad("expected flag list");
607 for(int i=0; i<l.length; i++) {
608 String flag = l[i].s;
609 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
610 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
611 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
612 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
613 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
614 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
619 if (type != ATOM) bad("expected a messageid set");
620 Vec.Int ids = new Vec.Int();
621 StringTokenizer st = new StringTokenizer(s, ",");
622 while(st.hasMoreTokens()) {
623 String s = st.nextToken();
624 if (s.indexOf(':') == -1) {
627 ids.addElement(Integer.MAX_VALUE);
629 ids.addElement(Integer.parseInt(s));
630 ids.addElement(Integer.parseInt(s));
633 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
634 String end_s = s.substring(s.indexOf(':')+1);
635 if (end_s.equals("*")) { ids.addElement(start); ids.addElement(Integer.MAX_VALUE); }
637 int end = Integer.parseInt(end_s);
638 for(int j=Math.min(start,end); j<=Math.max(start,end); j++) {
647 if (type != QUOTED && type != ATOM) bad("Expected quoted or unquoted date");
648 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
649 } catch (ParseException p) { throw new Server.Bad("invalid date format; " + p); }
651 public Date datetime() {
652 if (type != QUOTED) bad("Expected quoted datetime");
653 try { return new SimpleDateFormat("dd-MM-yyyy hh:mm:ss zzzz").parse(s.trim());
654 } catch (ParseException p) { throw new Server.Bad("invalid datetime format " + s + " : " + p); }
656 public String atom() {
657 if (type != ATOM) bad("expected atom");
658 for(int i=0; i<s.length(); i++) {
659 char c = s.charAt(i);
660 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*' || c == '\"' | c == '\\')
661 bad("invalid char in atom: " + c);
667 public void newline() {
668 while (stream.peekc() == '\r' || stream.peekc() == '\n' || stream.peekc() == ' ') {
669 for(char c = stream.peekc(); c == ' ';) { stream.getc(); c = stream.peekc(); };
670 for(char c = stream.peekc(); c == '\r' || c == '\n';) { stream.getc(); c = stream.peekc(); };
674 public Token token() { return token(true); }
675 public Token token(boolean freak) {
676 Vec toks = new Vec();
677 StringBuffer sb = new StringBuffer();
678 char c = stream.getc(); while (c == ' ') c = stream.getc();
679 if (c == '\r' || c == '\n') { if (freak) bad("unexpected end of line"); return null; }
681 while(stream.peekc() != '}') sb.append(stream.getc());
683 stream.println("+ Ready when you are...");
684 int octets = Integer.parseInt(sb.toString());
685 while(stream.peekc() == ' ') stream.getc(); // whitespace
686 while(stream.peekc() == '\n' || stream.peekc() == '\r') stream.getc();
687 byte[] bytes = new byte[octets];
689 while(numread < bytes.length) {
690 int n = stream.read(bytes, numread, bytes.length - numread);
691 if (n == -1) bad("end of stream while reading IMAP qstring");
694 return new Token(new String(bytes), true);
695 } else if (c == '\"') {
698 if (c == '\\') sb.append(stream.getc());
699 else if (c == '\"') break;
702 return new Token(sb.toString(), true);
704 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
705 } else if (c == ']' || c == ')') { return null;
706 } else if (c == '[' || c == '(') {
708 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
709 Token[] ret = new Token[toks.size()];
711 return new Token(ret);
716 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
717 c == '{' || c == '\n' || c == '\r')
718 return new Token(sb.toString(), false);
724 public static class Printer {
725 static String quotify(String s){
726 return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
727 static String quotify(Date d) {
728 return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
729 static String address(Address a) {
730 return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
731 public static String addressList(Object a) {
732 if (a == null) return "NIL";
733 if (a instanceof Address) return "("+address((Address)a)+")";
734 if (a instanceof String) return "("+address(Address.parse((String)a))+")";
735 Address[] aa = (Address[])a;
736 StringBuffer ret = new StringBuffer();
738 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
740 return ret.toString();
742 static String flags(Mailbox.Iterator it) {
744 (it.deleted() ? "\\Deleted " : "") +
745 (it.seen() ? "\\Seen " : "") +
746 (it.flagged() ? "\\Flagged " : "") +
747 (it.draft() ? "\\Draft " : "") +
748 (it.answered() ? "\\Answered " : "") +
749 (it.recent() ? "\\Recent " : "");
751 static String flags(int flags) {
753 (((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED) ? "\\Deleted " : "") +
754 (((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) ? "\\Seen " : "") +
755 (((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED) ? "\\Flagged " : "") +
756 (((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT) ? "\\Draft " : "") +
757 (((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED)? "\\Answered " : "") +
758 (((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT) ? "\\Recent " : "");
759 if (ret.endsWith(" ")) ret = ret.substring(0, ret.length() - 1);
762 static String bodystructure(Message m) {
764 return "(\"TEXT\" \"PLAIN\" (\"CHARSET\" \"ISO-8859-1\") NIL NIL \"7BIT\" "+m.size()+" "+m.lines+")";
766 static String message(Message m) { return m.toString(); }
767 static String date(Date d) { return "\""+d.toString()+"\""; }
768 static String envelope(Message m) {
770 "(" + quotify(m.arrival.toString()) +
771 " " + quotify(m.subject) +
772 " " + addressList(m.from) +
773 " " + addressList(m.headers.gets("sender")) +
774 " " + addressList(m.replyto) +
775 " " + addressList(m.to) +
776 " " + addressList(m.cc) +
777 " " + addressList(m.bcc) +
778 " " + quotify((String)m.headers.gets("in-reply-to")) +
779 " " + quotify(m.messageid) +
783 public static String qq(String s) {
784 StringBuffer ret = new StringBuffer();
786 ret.append(s.length());
791 return ret.toString();
794 private static String join(int[] nums) {
795 StringBuffer ret = new StringBuffer();
796 for(int i=0; i<nums.length; i++) {
798 if (i<nums.length-1) ret.append(' ');
800 return ret.toString();
802 private static String join(String delimit, String[] stuff) {
803 StringBuffer ret = new StringBuffer();
804 for(int i=0; i<stuff.length; i++) {
805 ret.append(stuff[i]);
806 if (i<stuff.length - 1) ret.append(delimit);
808 return ret.toString();
813 // Main //////////////////////////////////////////////////////////////////////////////
815 public static final int
816 PEEK=0x1, BODYSTRUCTURE=0x2, ENVELOPE=0x4, FLAGS=0x8, INTERNALDATE=0x10, FIELDS=0x800, FIELDSNOT=0x1000,
817 RFC822=0x20, RFC822TEXT=0x40, RFC822SIZE=0x80, HEADERNOT=0x100, UID=0x200, HEADER=0x400;