1 package org.ibex.mail.protocol;
3 import org.ibex.crypto.*;
4 import org.ibex.jinetd.Listener;
5 import org.ibex.jinetd.Worker;
6 import org.ibex.mail.*;
7 import org.ibex.util.*;
8 import org.ibex.mail.target.*;
14 // FIXME: this is valid LSUB "" asdfdas%*%*%*%*SFEFGWEF
15 // FIXME: be very careful about where/when we quotify stuff
16 // FIXME: 'UID FOO 100:*' must match at least one message even if all UIDs less than 100
17 // FIXME: LIST should return INBOX if applicable
21 // RFC 3501: IMAPv4 with clarifications
25 // FEATURE: make sure we're being case-insensitive enough; probably want to upcase atom()
26 // FEATURE: MIME-queries and BODYSTRUCTURE
27 // FEATURE: READ-WRITE / READ-ONLY status on SELECT
28 // FEATURE: pipelining
29 // FEATURE: support [charset]
31 // FEATURE: subscriptions
32 // FEATURE: tune for efficiency
34 // FEATURE: asynchronous client notifications (need to re-read RFC)
39 public static final float version = (float)0.2;
41 // API Class //////////////////////////////////////////////////////////////////////////////
43 public static interface Client {
44 public void expunge(int uid);
45 public void list(char separator, String mailbox, boolean lsub, boolean phantom);
46 public void fetch(int num, int flags, int size, Message m, int muid); // m may be null or incomplete
49 public static interface Server {
50 public void setClient(IMAP.Client client);
51 public String[] capability();
52 public Hashtable id(Hashtable clientId);
53 public void copy(Query q, String to);
55 public void unselect();
56 public void delete(String m);
57 public void create(String m);
58 public void append(String m, int flags, Date arrival, String body);
62 public void subscribe(String mailbox);
63 public void unsubscribe(String mailbox);
64 public int unseen(String mailbox);
65 public int recent(String mailbox);
66 public int count(String mailbox);
67 public int uidNext(String mailbox);
68 public int uidValidity(String mailbox);
69 public int[] search(Query q, boolean uid);
70 public void rename(String from, String to);
71 public void select(String mailbox, boolean examineOnly);
72 public void setFlags(Query q, int flags, boolean uid, boolean silent);
73 public void removeFlags(Query q, int flags, boolean uid, boolean silent);
74 public void addFlags(Query q, int flags, boolean uid, boolean silent);
75 public void expunge();
76 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid);
77 public void lsub(String start, String ref);
78 public void list(String start, String ref);
79 public static class Exn extends MailException { public Exn(String s) { super(s); } }
80 public static class Bad extends Exn { public Bad(String s) { super(s); } }
81 public static class No extends Exn { public No(String s) { super(s); } }
85 // MailboxWrapper //////////////////////////////////////////////////////////////////////////////
87 /** wraps an IMAP.Server interface around a Mailbox */
88 public static class MailboxWrapper implements Server {
90 public static final char sep = '.';
93 Mailbox selected = null;
95 Mailbox selected() { if (selected == null) throw new Bad("no mailbox selected"); return selected; }
99 public MailboxWrapper(Login auth, Client c) { this.auth=auth; this.client=c;}
100 public void setClient(IMAP.Client client) { }
102 private Mailbox mailbox(String name, boolean create) { return mailbox(name, create, true); }
103 private Mailbox mailbox(String name, boolean create, boolean throwexn) {
104 if (name.equalsIgnoreCase("inbox")) return inbox;
106 for(StringTokenizer st = new StringTokenizer(name, sep + ""); st.hasMoreTokens();)
107 if ((m = m.slash(st.nextToken(), create)) == null) {
108 if (throwexn) throw new Server.No("no such mailbox " + name);
114 // FEATURE: not accurate when a wildcard and subsequent non-wildcards both match a single component
115 public void lsub(String start, String ref) { list(start, ref, true); }
116 public void list(String start, String ref) { list(start, ref, false); }
117 public void list(String start, String ref, boolean lsub) {
118 if (ref.length() == 0) { client.list(sep, start, lsub, false); return; }
119 while (start.endsWith(""+sep)) start = start.substring(0, start.length() - 1);
120 if (ref.endsWith("%")) ref = ref + sep;
121 String[] children = (start.length() == 0 ? root : mailbox(start, false)).children();
122 for(int i=0; i<children.length; i++) {
123 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? sep+"" : "") + s;
124 if (mailbox(kid, false) == null) continue;
125 boolean phantom = mailbox(kid, false).phantom();
127 if (pre.length() == 0) {
128 if (s.length() == 0) client.list(sep, kid, lsub, phantom);
129 } else switch(pre.charAt(0)) {
130 case sep: if (s.length() == 0) list(kid, pre.substring(1), lsub); break;
131 case '%': client.list(sep,kid,lsub,phantom);pre=pre.substring(1); s = ""; continue;
132 case '*': client.list(sep,kid,lsub,phantom);list(kid,pre,lsub);pre=pre.substring(1); break;
133 default: if (s.length()==0) break;
134 if (s.charAt(0) != pre.charAt(0)) break;
135 s = s.substring(1); pre = pre.substring(1); continue;
142 public String[] capability() { return new String[] { "IMAP4rev1" , "UNSELECT", "ID" }; }
143 public Hashtable id(Hashtable clientId) {
144 Hashtable response = new Hashtable();
145 response.put("name", IMAP.class.getName());
146 response.put("version", version + "");
147 response.put("os", System.getProperty("os.name", null));
148 response.put("os-version", System.getProperty("os.version", null));
149 response.put("vendor", "none");
150 response.put("support-url", "http://mail.ibex.org/");
154 public void copy(Query q, String to) { copy(q, mailbox(to, false)); }
155 /* */ void copy(Query q, Mailbox to) {
156 for(Mailbox.Iterator it=selected().iterator(q);it.next();) to.add(it.cur(), it.flags() | Mailbox.Flag.RECENT); }
158 public void unselect() { selected = null; }
159 public void delete(String m0) { delete(mailbox(m0,false)); }
160 public void delete(Mailbox m) { if (!m.equals(inbox)) m.destroy(false); else throw new Bad("can't delete inbox"); }
161 public void create(String m) { mailbox(m, true, false); }
162 public void append(String m,int f,Date a,String b) { try {
163 mailbox(m,false).add(new Message(new Stream(b), new Message.Envelope(null,null,a)),f|Mailbox.Flag.RECENT);
164 } catch (Message.Malformed e) { throw new No(e.getMessage()); } }
165 public void check() { }
166 public void noop() { }
167 public void logout() { }
168 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); }
169 public void expunge() { for(Mailbox.Iterator it = selected().iterator(Query.deleted());it.next();) expunge(it); }
170 public void expunge(Mailbox.Iterator it) { client.expunge(it.uid()); it.delete(); }
171 public void subscribe(String mailbox) { }
172 public void unsubscribe(String mailbox) { }
173 public int unseen(String mailbox) { return mailbox(mailbox, false).count(Query.not(Query.seen())); }
174 public int recent(String mailbox) { return mailbox(mailbox, false).count(Query.recent()); }
175 public int count(String mailbox) { return mailbox(mailbox, false).count(Query.all()); }
176 public int uidNext(String mailbox) { return mailbox(mailbox, false).uidNext(); }
177 public int uidValidity(String mailbox) { return mailbox(mailbox, false).uidValidity(); }
178 public void select(String mailbox, boolean examineOnly) {
179 selected = mailbox(mailbox, false);
182 public int[] search(Query q, boolean uid) {
183 Vec.Int vec = new Vec.Int();
184 for(Mailbox.Iterator it = selected().iterator(q); it.next();) {
185 vec.addElement(uid ? it.uid() : it.num());
191 public void setFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 0, silent); }
192 public void addFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, 1, silent); }
193 public void removeFlags(Query q, int f, boolean uid, boolean silent) { doFlags(q, f, uid, -1, silent); }
195 private void doFlags(Query q, int flags, boolean uid, int style, boolean silent) {
196 for(Mailbox.Iterator it = selected().iterator(q);it.next();) {
197 boolean recent = it.recent();
198 if (style == -1) it.removeFlags(flags);
199 else if (style == 0) it.setFlags(flags);
200 else if (style == 1) it.addFlags(flags);
203 //if (!silent) client.fetch(it.num(), it.flags(), -1, null, it.uid());
206 public void rename(String from0, String to) {
207 Mailbox from = mailbox(from0, false);
208 if (from.equals(inbox)) { from.copy(Query.all(), mailbox(to, true)); }
209 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), mailbox(to, true)); from.destroy(false); }
210 else from.rename(to);
212 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid) {
213 for(Mailbox.Iterator it = selected().iterator(q); it.next(); ) {
214 Message message = ((spec & (BODYSTRUCTURE | ENVELOPE | INTERNALDATE | FIELDS | FIELDSNOT | RFC822 |
215 RFC822TEXT | RFC822SIZE | HEADERNOT | HEADER)) != 0) ? it.cur() : null;
216 int size = message == null ? 0 : message.size();
217 client.fetch(it.num(), it.flags(), size, message, it.uid());
224 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
226 /** takes an IMAP.Server and exposes it to the world as an IMAP server on a TCP socket */
227 public static class Listener implements Worker, Client {
228 String selectedName = null;
229 Mailbox inbox = null, root = null;
231 Parser parser = null;
232 Connection conn = null;
234 public Listener(Login auth) { api = new IMAP.MailboxWrapper(this.auth = auth, this); }
235 Parser.Token token() { return parser.token(); }
236 void println(String s) { conn.println(s); }
237 void newline() { parser.newline(); }
238 Query query() { return parser.query(); }
240 public void login(String u, String p) {
242 if ((ret = auth.login(u,p,IMAP.class)) == null) throw new Server.No("Login failed.");
243 if (ret instanceof IMAP.Server) {
244 api = (IMAP.Server)ret;
247 Account account = (Account)ret;
248 root = account.getMailbox(IMAP.class);
249 inbox = root.slash("INBOX", false);
250 if (inbox == null) inbox = root;
254 public void handleRequest(Connection conn) {
256 parser = new Parser(conn);
257 conn.setTimeout(30 * 60 * 1000);
258 println("* OK " + conn.vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
259 for(String tag = null;; newline()) try {
262 tag = null; Parser.Token tok = token(); if (tok == null) return; tag = tok.astring();
263 String command = token().atom();
264 if (command.equalsIgnoreCase("UID")) { uid = true; command = token().atom(); }
265 int commandKey = ((Integer)commands.get(command.toUpperCase())).intValue();
267 case LOGIN: login(token().astring(), token().astring()); break;
268 case CAPABILITY: println("* CAPABILITY " + Printer.join(" ", api.capability())); break;
269 case AUTHENTICATE: throw new Server.No("AUTHENTICATE not supported");
270 case LOGOUT: api.logout(); println("* BYE"); conn.close(); return;
271 case LIST: api.list(token().q(), token().astring()); break; /*astring is a hack for EUDORA*/
272 case LSUB: api.lsub(token().q(), token().q()); break;
273 case SUBSCRIBE: api.subscribe(token().astring()); break;
274 case UNSUBSCRIBE: api.unsubscribe(token().astring()); break;
275 case RENAME: api.rename(token().astring(), token().astring()); break;
276 case COPY: selected(); api.copy(Query.set(uid, token().set()), token().astring()); break;
277 case DELETE: api.delete(token().atom()); break;
278 case CHECK: selected(); api.check(); break;
279 case NOOP: api.noop(); break;
280 case CLOSE: selected(); api.close(); break;
281 case EXPUNGE: selected(); api.expunge(); break;
282 case UNSELECT: selected(); api.unselect(); selected = false; break;
283 case CREATE: api.create(token().astring()); break;
284 case FETCH: selected(); fetch(Query.set(lastuid=uid, token().set()),
285 lastfetch=token().lx(), 0, 0, 0, uid, 0); break;
286 case SEARCH: selected(); println("* SEARCH " + Printer.join(api.search(query(), uid))); break;
289 String mailbox = token().astring();
290 api.select(mailbox, commandKey==EXAMINE);
291 println("* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
292 println("* " + api.count(mailbox) + " EXISTS");
293 println("* " + api.recent(mailbox) + " RECENT");
294 println("* OK [UIDVALIDITY " + api.uidValidity(mailbox) + "] UIDs valid");
295 println("* OK [UIDNEXT " + api.uidNext(mailbox) + "]");
296 println("* OK [PERMANENTFLAGS (\\Seen \\Draft \\Answered \\Deleted)]");
300 String mailbox = token().astring(); // hack for GNUS buggy client
301 Parser.Token[] list = token().l();
302 String response = "";
303 for(int i=0; i<list.length; i++) {
304 String s = list[i].atom().toUpperCase();
305 if (i>0) response += " ";
306 if (s.equals("MESSAGES")) response += "MESSAGES " + api.count(mailbox);
307 if (s.equals("RECENT")) response += "RECENT " + api.recent(mailbox);
308 if (s.equals("UIDNEXT")) response += "UIDNEXT " + api.uidNext(mailbox);
309 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + api.uidValidity(mailbox);
310 if (s.equals("UNSEEN")) response += "UNSEEN " + api.unseen(mailbox);
312 println("* STATUS " + mailbox + " (" + response + ")");
316 String m = token().astring();
318 Date arrival = new Date();
319 Parser.Token t = token();
320 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
321 if (t.type != t.QUOTED) { arrival = t.datetime(); t = token(); }
322 api.append(m, flags, arrival, t.q());
326 Query q = uid ? Query.uid(token().set()) : Query.num(token().set());
327 String s = token().atom().toUpperCase();
328 int flags = token().flags();
329 if (s.equals("FLAGS")) api.setFlags(q, flags, uid, false);
330 else if (s.equals("+FLAGS")) api.addFlags(q, flags, uid, false);
331 else if (s.equals("-FLAGS")) api.removeFlags(q, flags, uid, false);
332 else if (s.equals("FLAGS.SILENT")) api.setFlags(q, flags, uid, true);
333 else if (s.equals("+FLAGS.SILENT")) api.addFlags(q, flags, uid, true);
334 else if (s.equals("-FLAGS.SILENT")) api.removeFlags(q, flags, uid, true);
335 else throw new Server.Bad("unknown STORE specifier " + s);
337 default: throw new Server.Bad("unrecognized command \"" + command + "\"");
339 println(tag+" OK "+command+" Completed. " +
340 (commandKey == LOGIN ? ("[CAPABILITY "+Printer.join(" ", api.capability())+"]") : ""));
341 } catch (Server.Bad b) { println(tag==null ? "* BAD Invalid tag":(tag + " Bad " + b.toString())); Log.warn(this,b);
342 } catch (Server.No n) { println(tag==null?"* BAD Invalid tag":(tag+" No " + n.toString())); Log.warn(this,n); }
345 private Parser.Token[] lastfetch = null; // hack
346 private boolean lastuid = false; // hack
347 private boolean selected = false;
348 private void selected() { if (!selected) throw new Server.Bad("no mailbox selected"); }
350 // Callbacks //////////////////////////////////////////////////////////////////////////////
352 public void expunge(int uid) { println("* " + uid + " EXPUNGE"); }
353 public void fetch(int n, int f, int size, Message m, int muid) { fetch(m, lastfetch, n, f, size, lastuid, muid); }
354 public void list(char sep, String mb, boolean sub, boolean p) {
355 println("* " + (sub?"LSUB":"LIST")+" ("+(p?"\\Noselect":"")+") \""+sep+"\" \""+mb+"\"");}
358 * Parse a fetch request <i>or</i> emit a fetch reply.
360 * To avoid duplicating tedious parsing logic, this function
361 * performs both of the following tasks:
362 * - parse the fetch request in Token[] t and return a fetch spec
363 * - emit a fetch reply for the parsed spec with respect to message m
365 private void fetch(Object o, Parser.Token[] t, int num, int flags, int size, boolean uid, int muid) {
366 Query q = o instanceof Query ? (Query)o : null;
367 Message m = o instanceof Message ? (Message)o : null;
368 boolean e = q == null;
371 int spec = 0; // spec; see constants for flags
372 String[] headers = null;
373 int start = -1, end = -1;
374 StringBuffer r = new StringBuffer();
375 if (e) { r.append(uid ? muid : num); r.append(" FETCH ("); }
376 int initlen = r.length();
378 boolean good = false;
379 for(int i=0; i<t.length; i++)
380 if ((t[i].type == Parser.Token.QUOTED || t[i].type == Parser.Token.ATOM) &&
381 t[i].astring().equalsIgnoreCase("UID")) good = true;
383 Parser.Token[] t2 = new Parser.Token[t.length + 1];
384 System.arraycopy(t, 0, t2, 0, t.length);
385 t2[t2.length - 1] = parser.token("UID");
386 lastfetch = (t = t2);
389 if (t.length == 0 && (t[0].type == Parser.Token.QUOTED || t[0].type == Parser.Token.ATOM)) {
390 if (t[0].astring().equalsIgnoreCase("ALL"))
391 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
392 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
393 else if (t[0].astring().equalsIgnoreCase("FULL"))
394 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"), parser.token("BODY"),
395 parser.token("ENVELOPE"), parser.token("RFC822.SIZE") };
396 else if (t[0].astring().equalsIgnoreCase("FAST"))
397 t = new Parser.Token[] { parser.token("FLAGS"), parser.token("INTERNALDATE"),
398 parser.token("RFC822.SIZE") };
400 for(int i=0; i<t.length; i++) {
401 if (r.length() > initlen) r.append(" ");
402 if (t[i] == null || t[i].s == null) continue;
403 String s = t[i].s.toUpperCase();
404 r.append(s.equalsIgnoreCase("BODY.PEEK")?"BODY":s);
405 if (s.equals("BODYSTRUCTURE")) { spec|=BODYSTRUCTURE;if(e){r.append(" ");r.append(Printer.bodystructure(m));}
406 } else if (s.equals("ENVELOPE")) { spec|=ENVELOPE; if(e){r.append(" ");r.append(Printer.envelope(m));}
407 } else if (s.equals("FLAGS")) { spec|=FLAGS; if(e){r.append(" ");r.append(Printer.flags(flags));}
408 } else if (s.equals("INTERNALDATE")) { spec|=INTERNALDATE; if(e){r.append(" ");r.append(Printer.date(m.envelope.arrival));}
409 } else if (s.equals("RFC822")) { spec|=RFC822; if(e){r.append(" ");r.append(Printer.message(m));}
410 } else if (s.equals("RFC822.TEXT")) { spec|=RFC822TEXT; if(e){r.append(" ");r.append(Printer.qq(m.body));}
411 } else if (s.equals("RFC822.HEADER")){ spec|=HEADER;if(e){r.append(" ");r.append(Printer.qq(m.headers.raw+"\r\n"));}
412 } else if (s.equals("RFC822.SIZE")) { spec|=RFC822SIZE; if(e){r.append(" ");r.append(m.size());}
413 } else if (s.equals("UID")) { spec|=UID; if(e){r.append(" ");r.append(muid); }
414 } else if (!(s.equals("BODY.PEEK") || s.equals("BODY"))) { throw new Server.No("unknown fetch argument: " + s);
416 if (s.equalsIgnoreCase("BODY.PEEK")) spec |= PEEK;
417 //else if (e) api.addFlags(Query.num(new int[] { num, num }), Mailbox.Flag.SEEN, false, false);
418 if (i >= t.length - 1 || t[i+1].type != Parser.Token.LIST) {
419 spec |= BODYSTRUCTURE;
420 if (e) { r.append(" "); r.append(Printer.bodystructure(m)); } continue;
421 //{ if (e) { r.append(" "); r.append(Printer.qq(m.body)); } continue; }
425 Parser.Token[] list = t[++i].l();
426 s = list.length == 0 ? "" : list[0].s.toUpperCase();
428 if (list.length == 0) { spec |= RFC822TEXT; if(e) payload = m.headers.raw+"\r\n"+m.body; }
429 else if (s.equals("") || s.equals("1")) { spec |= RFC822TEXT; if(e) payload = m.headers.raw+"\r\n"+m.body; }
430 else if (s.equals("TEXT")) { spec |= RFC822TEXT; if(e) payload = m.body; }
431 else if (s.equals("HEADER")) { spec |= HEADER; if(e) payload = m.headers.raw+"\r\n"; }
432 else if (s.equals("HEADER.FIELDS")) { spec |= FIELDS; payload=headers(r,t[i].l()[1].sl(),false,m,e); }
433 else if (s.equals("HEADER.FIELDS.NOT")) { spec |= FIELDSNOT; payload=headers(r,t[i].l()[1].sl(),true,m,e); }
434 else if (s.equals("MIME")) { throw new Server.Bad("MIME not supported"); }
435 else throw new Server.Bad("unknown section type " + s);
436 if (i<t.length - 1 && (t[i+1].s != null && t[i+1].s.startsWith("<"))) {
438 s = t[i].s.substring(1, t[i].s.indexOf('>'));
439 int dot = s.indexOf('.');
440 start = dot == -1 ? Integer.parseInt(s) : Integer.parseInt(s.substring(0, s.indexOf('.')));
441 end = dot == -1 ? -1 : Integer.parseInt(s.substring(s.indexOf('.') + 1));
442 if (e) { payload = payload.substring(start, Math.min(end+1,payload.length())); r.append("<"+start+">"); }
444 if (e) { r.append("] "); r.append(Printer.qq(payload)); }
449 println("* " + r.toString());
451 api.fetch(q, spec, headers, start, end, uid);
455 private String headers(StringBuffer r, String[] headers, boolean negate, Message m, boolean e) {
457 if (e) r.append(" (");
459 if(e) for(int j=0; j<headers.length; j++) {
460 r.append(headers[j] + (j<headers.length-1?" ":""));
461 if (m.headers.gets(headers[j]) != null) payload += headers[j]+": "+m.headers.gets(headers[j])+"\r\n";
464 throw new Server.No("HEADERS.NOT temporarily disaled");
466 if (e) for(int j=0; j<headers.length; j++) r.append(headers[j] + (j<headers.length-1?" ":""));
467 if(e) { OUTER: for(Enumeration x=m.headers.keys(); x.hasMoreElements();) {
468 String key = (String)x.nextElement();
469 for(int j=0; j<headers.length; j++) if (key.equalsIgnoreCase(headers[j])) continue OUTER;
470 payload += key + ": " + m.headers.gets(key)+"\r\n";
474 if (e) r.append(")");
475 return payload + "\r\n";
478 private static final Hashtable commands = new Hashtable();
479 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
480 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
481 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
482 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
483 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
484 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
485 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
486 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
487 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
488 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
489 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
490 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
491 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
492 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
493 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
494 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
495 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
496 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
497 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
498 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
499 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
500 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
501 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
502 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
503 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
504 private static final int SEARCH = 25; static { commands.put("SEARCH", new Integer(SEARCH)); }
507 public static class Parser {
508 private Stream stream;
509 public Parser(Stream from) { this.stream = from; }
510 public Token token(String s) { return new Token(s); }
511 protected Query query() {
516 Parser.Token t = token(false);
517 if (t == null) break;
518 if (t.type == t.LIST) throw new Server.No("nested queries not yet supported FIXME");
519 else if (t.type == t.SET) return Query.num(t.set());
520 s = t.atom().toUpperCase();
521 if (s.equals("NOT")) { not = true; continue; }
522 if (s.equals("OR")) return Query.or(query(), query()); // FIXME parse rest of list
523 if (s.equals("AND")) return Query.and(query(), query());
525 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
526 if (s.equals("ANSWERED")) q = Query.answered();
527 else if (s.equals("DELETED")) q = Query.deleted();
528 else if (s.equals("ALL")) q = Query.all();
529 else if (s.equals("DRAFT")) q = Query.draft();
530 else if (s.equals("FLAGGED")) q = Query.flagged();
531 else if (s.equals("RECENT")) q = Query.recent();
532 else if (s.equals("SEEN")) q = Query.seen();
533 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
534 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
535 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
536 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
537 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
538 else if (s.equals("CC")) q = Query.header("cc", token().astring());
539 else if (s.equals("FROM")) q = Query.header("from", token().astring());
540 else if (s.equals("TO")) q = Query.header("to", token().astring());
541 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
542 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
543 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
544 else if (s.equals("BODY")) q = Query.body(token().astring());
545 else if (s.equals("TEXT")) q = Query.full(token().astring());
546 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
547 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
548 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
549 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
550 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
551 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
552 else if (s.equals("UID")) q = Query.uid(token().set());
556 private static void bad(String s) { throw new Server.Bad(s); }
558 public final byte type;
559 private final String s;
560 private final Parser.Token[] l;
562 private static final byte NIL = 0, LIST = 1, QUOTED = 2, NUMBER = 3, ATOM = 4, BAREWORD = 5, SET = 6;
563 public Token() { this.s = null; n = 0; l = null; type = NIL; }
564 public Token(String s) { this(s, false); }
565 public Token(String s, boolean quoted) { this.s = s; n = 0; l = null; type = quoted ? QUOTED : ATOM; }
566 public Token(Parser.Token[] list) { this.s = null; n = 0; l = list; type = LIST; }
567 public Token(int number) { this.s = null; n = number; l = null; type = NUMBER; }
569 public String flag() { if (type != ATOM) bad("expected a flag"); return s; }
570 public int n() { if (type != NUMBER) bad("expected number"); return n; }
571 public int nz() { int n = n(); if (n == 0) bad("expected nonzero number"); return n; }
572 public String q() { if (type == NIL) return null; if (type != QUOTED) bad("expected qstring"); return s; }
573 public Parser.Token[] l() { if (type == NIL) return null; if (type != LIST) bad("expected list"); return l; }
574 public Parser.Token[] lx() {
575 if (type == LIST) return l;
579 Parser.Token t = token(false);
580 if (t == null) break;
583 Parser.Token[] ret = new Parser.Token[v.size()];
587 public String nstring() { if (type==NIL) return null; if (type!=QUOTED) bad("expected nstring"); return s; }
588 public String astring() {
589 if (type != ATOM && type != QUOTED) bad("expected atom or string");
590 if (s == null) bad("astring cannot be null");
592 public String[] sl() {
593 if (type == NIL) return null;
594 if (type != LIST) bad("expected list");
595 String[] ret = new String[l.length];
596 for(int i=0; i<ret.length; i++) ret[i] = l[i].s;
600 if (type != LIST) bad("expected flag list");
602 for(int i=0; i<l.length; i++) {
603 String flag = l[i].s;
604 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
605 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
606 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
607 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
608 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
609 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
614 if (type != ATOM) bad("expected a messageid set");
615 Vec.Int ids = new Vec.Int();
616 StringTokenizer st = new StringTokenizer(s, ",");
617 while(st.hasMoreTokens()) {
618 String s = st.nextToken();
619 if (s.indexOf(':') == -1) {
622 ids.addElement(Integer.MAX_VALUE);
624 ids.addElement(Integer.parseInt(s));
625 ids.addElement(Integer.parseInt(s));
628 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
629 String end_s = s.substring(s.indexOf(':')+1);
630 if (end_s.equals("*")) { ids.addElement(start); ids.addElement(Integer.MAX_VALUE); }
632 int end = Integer.parseInt(end_s);
633 for(int j=Math.min(start,end); j<=Math.max(start,end); j++) {
642 if (type != QUOTED && type != ATOM) bad("Expected quoted or unquoted date");
643 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
644 } catch (ParseException p) { throw new Server.Bad("invalid date format; " + p); }
646 public Date datetime() {
647 if (type != QUOTED) bad("Expected quoted datetime");
648 try { return new SimpleDateFormat("dd-MM-yyyy hh:mm:ss zzzz").parse(s.trim());
649 } catch (ParseException p) { throw new Server.Bad("invalid datetime format " + s + " : " + p); }
651 public String atom() {
652 if (type != ATOM) bad("expected atom");
653 for(int i=0; i<s.length(); i++) {
654 char c = s.charAt(i);
655 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*' || c == '\"' | c == '\\')
656 bad("invalid char in atom: " + c);
662 public void newline() {
663 while (stream.peekc() == '\r' || stream.peekc() == '\n' || stream.peekc() == ' ') {
664 for(char c = stream.peekc(); c == ' ';) { stream.getc(); c = stream.peekc(); };
665 for(char c = stream.peekc(); c == '\r' || c == '\n';) { stream.getc(); c = stream.peekc(); };
669 public Token token() { return token(true); }
670 public Token token(boolean freak) {
671 Vec toks = new Vec();
672 StringBuffer sb = new StringBuffer();
673 char c = stream.getc(); while (c == ' ') c = stream.getc();
674 if (c == '\r' || c == '\n') { if (freak) bad("unexpected end of line"); return null; }
676 while(stream.peekc() != '}') sb.append(stream.getc());
678 stream.println("+ Ready when you are...");
679 int octets = Integer.parseInt(sb.toString());
680 while(stream.peekc() == ' ') stream.getc(); // whitespace
681 while(stream.peekc() == '\n' || stream.peekc() == '\r') stream.getc();
682 byte[] bytes = new byte[octets];
684 while(numread < bytes.length) {
685 int n = stream.read(bytes, numread, bytes.length - numread);
686 if (n == -1) bad("end of stream while reading IMAP qstring");
689 return new Token(new String(bytes), true);
690 } else if (c == '\"') {
693 if (c == '\\') sb.append(stream.getc());
694 else if (c == '\"') break;
697 return new Token(sb.toString(), true);
699 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
700 } else if (c == ']' || c == ')') { return null;
701 } else if (c == '[' || c == '(') {
703 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
704 Token[] ret = new Token[toks.size()];
706 return new Token(ret);
711 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
712 c == '{' || c == '\n' || c == '\r')
713 return new Token(sb.toString(), false);
719 public static class Printer {
720 static String quotify(String s){
721 return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
722 static String quotify(Date d) {
723 return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
724 static String address(Address a) {
725 return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
726 public static String addressList(Object a) {
727 if (a == null) return "NIL";
728 if (a instanceof Address) return "("+address((Address)a)+")";
729 if (a instanceof String) return "("+address(Address.parse((String)a))+")";
730 Address[] aa = (Address[])a;
731 StringBuffer ret = new StringBuffer();
733 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
735 return ret.toString();
737 static String flags(Mailbox.Iterator it) {
739 (it.deleted() ? "\\Deleted " : "") +
740 (it.seen() ? "\\Seen " : "") +
741 (it.flagged() ? "\\Flagged " : "") +
742 (it.draft() ? "\\Draft " : "") +
743 (it.answered() ? "\\Answered " : "") +
744 (it.recent() ? "\\Recent " : "");
746 static String flags(int flags) {
748 (((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED) ? "\\Deleted " : "") +
749 (((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) ? "\\Seen " : "") +
750 (((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED) ? "\\Flagged " : "") +
751 (((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT) ? "\\Draft " : "") +
752 (((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED)? "\\Answered " : "") +
753 (((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT) ? "\\Recent " : "");
754 if (ret.endsWith(" ")) ret = ret.substring(0, ret.length() - 1);
757 static String bodystructure(Message m) {
759 return "(\"TEXT\" \"PLAIN\" (\"CHARSET\" \"ISO-8859-1\") NIL NIL \"7BIT\" "+m.size()+" "+m.lines+")";
761 static String message(Message m) { return m.toString(); }
762 static String date(Date d) { return "\""+d.toString()+"\""; }
763 static String envelope(Message m) {
765 "(" + quotify(m.envelope.arrival.toString()) +
766 " " + quotify(m.subject) +
767 " " + addressList(m.from) +
768 " " + addressList(m.headers.gets("sender")) +
769 " " + addressList(m.replyto) +
770 " " + addressList(m.to) +
771 " " + addressList(m.cc) +
772 " " + addressList(m.bcc) +
773 " " + quotify((String)m.headers.gets("in-reply-to")) +
774 " " + quotify(m.messageid) +
778 public static String qq(String s) {
779 StringBuffer ret = new StringBuffer();
781 ret.append(s.length());
786 return ret.toString();
789 private static String join(int[] nums) {
790 StringBuffer ret = new StringBuffer();
791 for(int i=0; i<nums.length; i++) {
793 if (i<nums.length-1) ret.append(' ');
795 return ret.toString();
797 private static String join(String delimit, String[] stuff) {
798 StringBuffer ret = new StringBuffer();
799 for(int i=0; i<stuff.length; i++) {
800 ret.append(stuff[i]);
801 if (i<stuff.length - 1) ret.append(delimit);
803 return ret.toString();
808 // Main //////////////////////////////////////////////////////////////////////////////
810 public static final int
811 PEEK=0x1, BODYSTRUCTURE=0x2, ENVELOPE=0x4, FLAGS=0x8, INTERNALDATE=0x10, FIELDS=0x800, FIELDSNOT=0x1000,
812 RFC822=0x20, RFC822TEXT=0x40, RFC822SIZE=0x80, HEADERNOT=0x100, UID=0x200, HEADER=0x400;