1 package org.ibex.mail.protocol;
2 import org.ibex.mail.*;
3 import org.ibex.util.*;
4 import org.ibex.mail.target.*;
10 // FIXMEFIXME: recent, seen
12 // FIXME: substring searches are case-insensitive
14 // FIXME: this is valid LSUB "" asdfdas%*%*%*%*SFEFGWEF
15 // FIXME: recent is ONLY possible in response to a FETCH
17 // FIXME: page 11, red pen
18 // FIXME: page 36 Noselect
19 // FIXME: be an asshole about which commands are valid when authed/not-authed
20 // FIXME: must always send BYE before closing connection
21 // FIXME: be very careful about where/when we quotify stuff
22 // FIXME: we can never send 8-bit binary data, even when the message contains it
23 // FIXME: TRYCREATE (page 46)
24 // FIXME: assume UTF-8
25 // FIXME: UTF-7 mailbox names (5.1.3)
26 // FIXME: asynchronous client notifications?!?!
30 // RFC 3501: IMAPv4 with clarifications
34 // FEATURE: MIME-queries and BODYSTRUCTURE
35 // FEATURE: READ-WRITE / READ-ONLY status on SELECT
36 // FEATURE: pipelining
37 // FEATURE: support [charset]
39 // FEATURE: subscriptions
40 // FEATURE: tune for efficiency
45 public static final float version = (float)0.1;
47 // API Class //////////////////////////////////////////////////////////////////////////////
49 public static final int
50 PEEK=0x1, BODYSTRUCTURE=0x2, ENVELOPE=0x4, FLAGS=0x8, INTERNALDATE=0x10, FIELDS=0x800, FIELDSNOT=0x1000,
51 RFC822=0x20, RFC822TEXT=0x40, RFC822SIZE=0x80, HEADERNOT=0x100, UID=0x200, HEADER=0x400;
53 public static interface Client {
54 public void expunge(int uid);
55 public void list(char separator, String mailbox, boolean lsub);
56 public void fetch(int num, int flags, int size, Message m, int muid); // m may be null or incomplete
59 public static interface Server {
60 public String[] capability();
61 public Hashtable id(Hashtable clientId);
62 public void copy(Query q, String to);
63 public void login(String u, String p);
65 public void unselect();
66 public void delete(String m);
67 public void create(String m);
68 public void append(String m, int flags, Date arrival, String body);
72 public void subscribe(String mailbox);
73 public void unsubscribe(String mailbox);
74 public int seen(String mailbox);
75 public int recent(String mailbox);
76 public int count(String mailbox);
77 public int uidNext(String mailbox);
78 public int uidValidity(String mailbox);
79 public int[] search(Query q, boolean uid);
80 public void rename(String from, String to);
81 public void select(String mailbox, boolean examineOnly);
82 public void setFlags(Query q, int flags, boolean uid);
83 public void removeFlags(Query q, int flags, boolean uid);
84 public void addFlags(Query q, int flags, boolean uid);
85 public void expunge();
86 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid);
87 public void lsub(String start, String ref);
88 public void list(String start, String ref);
89 public static interface Authenticator { public abstract Mailbox authenticate(String user, String pass); }
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 // SocketWrapper //////////////////////////////////////////////////////////////////////////////
98 public static class SocketWrapper /* implements Server */ {
99 // eventually this will implement the client side of an IMAP socket conversation
103 // MailboxWrapper //////////////////////////////////////////////////////////////////////////////
105 /** wraps an IMAP.Server interface around a Mailbox */
106 public static class MailboxWrapper implements Server {
108 public static final char sep = '.';
110 Mailbox inbox = null;
111 Mailbox selected = null;
112 Mailbox selected() { if (selected == null) throw new Bad("no mailbox selected"); return selected; }
113 final Server.Authenticator auth;
117 public MailboxWrapper(Mailbox root, Server.Authenticator auth, Client c) { this.root=root; this.auth=auth; this.client=c;}
119 private Mailbox mailbox(String name, boolean create) {
120 if (name.equalsIgnoreCase("inbox")) return inbox;
122 for(StringTokenizer st = new StringTokenizer(name, sep + ""); st.hasMoreTokens();)
123 if ((m = m.slash(st.nextToken(), create)) == null) throw new Server.No("no such mailbox " + name);
127 // FIXME should return INBOX if applicable
128 // FEATURE: not accurate when a wildcard and subsequent non-wildcards both match a single component
129 public void lsub(String start, String ref) { list(start, ref, true); }
130 public void list(String start, String ref) { list(start, ref, false); }
131 public void list(String start, String ref, boolean lsub) {
132 if (ref.length() == 0) { client.list(sep, start, lsub); return; }
133 while (start.endsWith(""+sep)) start = start.substring(0, start.length() - 1);
134 if (ref.endsWith("%")) ref = ref + sep;
135 String[] children = (start.length() == 0 ? root : mailbox(start, false)).children();
136 for(int i=0; i<children.length; i++) {
137 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? sep+"" : "") + s;
139 if (pre.length() == 0) {
140 if (s.length() == 0) client.list(sep, kid, lsub);
141 } else switch(pre.charAt(0)) {
142 case sep: if (s.length() == 0) list(kid, pre.substring(1), lsub); break;
143 case '%': client.list(sep, kid, lsub); pre = pre.substring(1); s = ""; continue;
144 case '*': client.list(sep, kid, lsub); list(kid, pre, lsub); pre = pre.substring(1); break;
145 default: if (s.length()==0) break;
146 if (s.charAt(0) != pre.charAt(0)) break;
147 s = s.substring(1); pre = pre.substring(1); continue;
154 public String[] capability() { return new String[] { "IMAP4rev1" , "UNSELECT", "ID" }; }
155 public Hashtable id(Hashtable clientId) {
156 Hashtable response = new Hashtable();
157 response.put("name", IMAP.class.getName());
158 response.put("version", version + "");
159 response.put("os", System.getProperty("os.name", null));
160 response.put("os-version", System.getProperty("os.version", null));
161 response.put("vendor", "none");
162 response.put("support-url", "http://mail.ibex.org/");
166 public void copy(Query q, String to) { copy(q, mailbox(to, false)); }
169 /* */ void copy(Query q, Mailbox to) { for(Mailbox.Iterator it=selected().iterator(q);it.next();) to.add(it.cur()); }
170 public void login(String u, String p) { if ((inbox = auth.authenticate(u,p)) == null) throw new No("Login failed."); }
171 public void unselect() { selected = null; }
172 public void delete(String m0) {
173 Mailbox m=mailbox(m0,false); if (m.equals(inbox)) m.destroy(); else throw new Bad("can't delete inbox"); }
174 public void create(String m) { mailbox(m, true); }
176 // FIXME: must always set RECENT flag
177 public void append(String m, int f, Date a, String b) { mailbox(m, false).add(new Message(null,null,b,a),f); }
178 public void check() { }
179 public void noop() { }
180 public void logout() { }
181 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); unselect(); }
182 public void expunge() { for(Mailbox.Iterator it = selected().iterator(Query.deleted());it.next();) expunge(it); }
183 public void expunge(Mailbox.Iterator it) { client.expunge(it.uid()); it.delete(); }
184 public void subscribe(String mailbox) { }
185 public void unsubscribe(String mailbox) { }
186 public int seen(String mailbox) { return mailbox(mailbox, false).count(Query.seen()); }
187 public int recent(String mailbox) { return mailbox(mailbox, false).count(Query.recent()); }
188 public int count(String mailbox) { return mailbox(mailbox, false).count(Query.all()); }
189 public int uidNext(String mailbox) { return mailbox(mailbox, false).uidNext(); }
190 public int uidValidity(String mailbox) { return mailbox(mailbox, false).uidValidity(); }
191 public void select(String mailbox, boolean examineOnly) { selected = mailbox(mailbox, false); }
192 public int[] search(Query q, boolean uid) {
193 Vec.Int vec = new Vec.Int();
194 for(Mailbox.Iterator it = selected().iterator(q); it.next();) vec.addElement(uid ? it.uid() : it.num());
197 public void setFlags(Query q, int f, boolean uid) { doFlags(q, f, uid, 0); }
198 public void addFlags(Query q, int f, boolean uid) { doFlags(q, f, uid, 1); }
199 public void removeFlags(Query q, int f, boolean uid) { doFlags(q, f, uid, -1); }
200 private void doFlags(Query q, int flags, boolean uid, int style) {
201 for(Mailbox.Iterator it = selected().iterator(q);it.next();) {
202 if (style == -1) it.removeFlags(flags);
203 else if (style == 0) it.setFlags(flags);
204 else if (style == 1) it.addFlags(flags);
205 client.fetch(it.num(), it.flags(), -1, null, it.uid());
208 public void rename(String from0, String to) {
209 Mailbox from = mailbox(from0, false);
210 if (from.equals(inbox)) { from.copy(Query.all(), mailbox(to, true)); }
211 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), mailbox(to, true)); from.destroy(); }
212 else from.rename(to);
214 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid) {
215 for(Mailbox.Iterator it = selected().iterator(q); it.next(); )
216 client.fetch(it.num(), it.flags(), it.cur().rfc822size(), it.cur(), it.uid());
221 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
223 /** takes an IMAP.Server and exposes it to the world as an IMAP server on a TCP socket */
224 private static class Listener extends Parser implements Client {
225 String selectedName = null;
226 Mailbox inbox = null;
231 public void init() { }
232 public Listener(Socket conn, Mailbox root, Server.Authenticator auth) throws IOException {
233 this(conn, java.net.InetAddress.getLocalHost().getHostName(), root, auth); }
234 public Listener(Socket conn, String vhost, Mailbox root, Server.Authenticator auth) throws IOException {
236 this.api = new IMAP.MailboxWrapper(root, auth, this);
237 this.vhost = vhost; this.conn = conn; this.root = root;
240 private Token[] lastfetch = null; // hack
241 private boolean lastuid = false; // hack
244 // Callbacks //////////////////////////////////////////////////////////////////////////////
246 public void expunge(int uid) { star(uid + " EXPUNGE"); }
247 public void list(char sep, String box, boolean lsub) {star((lsub?"LSUB":"LIST")+" () \""+sep+"\" \""+box+"\"");}
248 public void fetch(int num, int flags, int size, Message m, int muid) { fetch(m, lastfetch, num, flags, size, lastuid, muid); }
251 * Parse a fetch request <i>or</i> emit a fetch reply.
253 * To avoid duplicating tedious parsing logic, this function
254 * performs both of the following tasks:
255 * - parse the fetch request in Token[] t and return a fetch spec
256 * - emit a fetch reply for the parsed spec with respect to message m
258 private void fetch(Object o, Token[] t, int num, int flags, int size, boolean uid, int muid) {
259 Query q = o instanceof Query ? (Query)o : null;
260 Message m = o instanceof Message ? (Message)o : null;
261 boolean e = m != null;
264 int spec = 0; // spec; see constants for flags
265 String[] headers = null;
266 int start = -1, end = -1;
267 StringBuffer r = new StringBuffer();
268 if (e) { r.append(num); r.append(" FETCH ("); }
269 int initlen = r.length();
271 boolean good = false;
272 for(int i=0; i<t.length; i++)
273 if ((t[i].type == Token.QUOTED || t[i].type == Token.ATOM) &&
274 t[i].astring().equalsIgnoreCase("UID")) good = true;
276 Token[] t2 = new Token[t.length + 1];
277 System.arraycopy(t, 0, t2, 0, t.length);
278 t2[t2.length - 1] = new Token("UID");
282 if (t.length == 0 && (t[0].type == Token.QUOTED || t[0].type == Token.ATOM)) {
283 if (t[0].astring().equalsIgnoreCase("ALL"))
284 t = new Token[] { new Token("FLAGS"), new Token("INTERNALDATE"),
285 new Token("ENVELOPE"), new Token("RFC822.SIZE") };
286 else if (t[0].astring().equalsIgnoreCase("FULL"))
287 t = new Token[] { new Token("FLAGS"), new Token("INTERNALDATE"), new Token("BODY"),
288 new Token("ENVELOPE"), new Token("RFC822.SIZE") };
289 else if (t[0].astring().equalsIgnoreCase("FAST"))
290 t = new Token[] { new Token("FLAGS"), new Token("INTERNALDATE"),
291 new Token("RFC822.SIZE") };
293 for(int i=0; i<t.length; i++) {
294 if (r.length() > initlen) r.append(" ");
295 if (t[i] == null || t[i].s == null) continue;
296 String s = t[i].s.toUpperCase();
297 r.append(s.equals("BODY.PEEK")?"BODY":s);
298 if (s.equals("BODYSTRUCTURE")) { spec|=BODYSTRUCTURE;if(e){r.append(" ");r.append(Printer.bodystructure(m));}
299 } else if (s.equals("ENVELOPE")) { spec|=ENVELOPE; if(e){r.append(" ");r.append(Printer.envelope(m));}
300 } else if (s.equals("FLAGS")) { spec|=FLAGS; if(e){r.append(" ");r.append(Printer.flags(flags));}
301 } else if (s.equals("INTERNALDATE")) { spec|=INTERNALDATE; if(e){r.append(" ");r.append(Printer.date(m.arrival));}
302 } else if (s.equals("RFC822")) { spec|=RFC822; if(e){r.append(" ");r.append(Printer.message(m));}
303 } else if (s.equals("RFC822.TEXT")) { spec|=RFC822TEXT; if(e){r.append(" ");r.append(qq(m.body));}
304 } else if (s.equals("RFC822.HEADER")){ spec|=HEADER; if(e){r.append(" ");r.append(qq(m.allHeaders+"\r\n"));}
305 } else if (s.equals("RFC822.SIZE")) { spec|=RFC822SIZE; if(e){r.append(" ");r.append(m.rfc822size());}
306 } else if (s.equals("UID")) { spec|=UID; if(e){r.append(" ");r.append(muid); }
307 } else if (!(s.equals("BODY.PEEK") || s.equals("BODY"))) { throw new Server.No("unknown fetch argument: " + s);
309 if (s.equalsIgnoreCase("BODY.PEEK")) spec |= PEEK;
310 else if (e) api.addFlags(Query.num(new int[] { num, num }), Mailbox.Flag.SEEN, false);
311 if (i<t.length - 1 && (t[i+1].type == Token.LIST)) {if (e){r.append(" ");r.append(qq(m.body));} continue; }
314 Token[] list = t[++i].l();
315 s = list.length == 0 ? "" : list[0].s.toUpperCase();
317 if (list.length == 0) { spec |= RFC822TEXT; if(e) payload = m.body; }
318 else if (s.equals("")) { spec |= RFC822TEXT; if(e) payload = m.body; }
319 else if (s.equals("TEXT")) { spec |= RFC822TEXT; if(e) payload = m.body; }
320 else if (s.equals("HEADER")) { spec |= HEADER; if(e) payload = m.allHeaders+"\r\n"; }
321 else if (s.equals("HEADER.FIELDS")) { spec |= FIELDS; payload=headers(r,t[i].l()[1].sl(),false,m,e); }
322 else if (s.equals("HEADER.FIELDS.NOT")) { spec |= FIELDSNOT; payload=headers(r,t[i].l()[1].sl(),true,m,e); }
323 else if (s.equals("MIME")) { throw new Server.Bad("MIME not supported"); }
324 else throw new Server.Bad("unknown section type " + s);
325 if (i<t.length - 1 && (t[i+1].s != null && t[i+1].s.startsWith("<"))) {
327 s = t[i].s.substring(1, t[i].s.indexOf('>'));
328 int dot = s.indexOf('.');
329 start = dot == -1 ? Integer.parseInt(s) : Integer.parseInt(s.substring(0, s.indexOf('.')));
330 end = dot == -1 ? -1 : Integer.parseInt(s.substring(s.indexOf('.') + 1));
331 if (e) { payload = payload.substring(start, Math.min(end+1,payload.length())); r.append("<"+start+">"); }
333 if (e) { r.append(" "); r.append(qq(payload)); }
336 if (e) { r.append(")"); star(r.toString()); } else api.fetch(q, spec, headers, start, end, uid);
339 private String headers(StringBuffer r, String[] headers, boolean negate, Message m, boolean e) {
341 if (e) r.append(" (");
343 if(e) for(int j=0; j<headers.length; j++) {
344 r.append(headers[j] + (j<headers.length-1?" ":""));
345 if (m.headers.get(headers[j]) != null) payload += headers[j]+": "+m.headers.get(headers[j])+"\r\n";
348 if (e) for(int j=0; j<headers.length; j++) r.append(headers[j] + (j<headers.length-1?" ":""));
349 if(e) { OUTER: for(Enumeration x=m.headers.keys(); x.hasMoreElements();) {
350 String key = (String)x.nextElement();
351 for(int j=0; j<headers.length; j++) if (key.equalsIgnoreCase(headers[j])) continue OUTER;
352 payload += key + ": " + m.headers.get(key)+"\r\n";
355 if (e) r.append(")]");
356 return payload + "\r\n";
359 private void star(String s) { println("* " + s); }
360 private String qq(String s) { return Printer.qq(s); }
361 private void selected() { /* FIXME */ }
363 public boolean handleRequest() throws IOException {
364 star("OK " + vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
365 for(String tag = null;; newline()) try {
368 tag = null; tag = token().astring();
369 String command = token().atom();
370 if (command.equalsIgnoreCase("UID")) { uid = true; command = token().atom(); }
371 int commandKey = ((Integer)commands.get(command.toUpperCase())).intValue();
373 case LOGIN: api.login(token().astring(), token().astring()); break;
374 case CAPABILITY: star("CAPABILITY " + Printer.join(" ", api.capability())); break;
375 case AUTHENTICATE: throw new Server.No("AUTHENTICATE not supported");
376 case LOGOUT: api.logout(); star("BYE"); conn.close(); return false;
377 case LIST: api.list(token().q(), token().q()); break;
378 case LSUB: api.lsub(token().q(), token().q()); break;
379 case SUBSCRIBE: api.subscribe(token().astring()); break;
380 case UNSUBSCRIBE: api.unsubscribe(token().astring()); break;
381 case RENAME: api.rename(token().astring(), token().astring()); break;
382 case EXAMINE: api.select(token().astring(), true); break;
383 case COPY: selected(); api.copy(Query.set(uid, token().set()), token().astring()); break;
384 case DELETE: api.delete(token().atom()); break;
385 case CHECK: selected(); api.check(); break;
386 case NOOP: api.noop(); break;
387 case CLOSE: selected(); api.close(); break;
388 case EXPUNGE: selected(); api.expunge(); break;
389 case UNSELECT: selected(); api.unselect(); break;
390 case CREATE: api.create(token().astring()); break;
391 case FETCH: selected(); lastuid=uid; fetch(Query.set(uid, token().set()), lastfetch = token().l(), 0, 0, 0, uid, 0); break;
392 case SEARCH: selected(); star("SEARCH " + Printer.join(api.search(query(), uid))); break;
394 String mailbox = token().astring();
395 api.select(mailbox, false);
396 star("FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
397 star(api.count(mailbox) + " EXISTS");
398 star(api.recent(mailbox) + " RECENT");
399 star("OK [UIDVALIDITY " + api.uidValidity(mailbox) + "] UIDs valid");
400 star("OK [UIDNEXT " + api.uidNext(mailbox) + "]");
401 star("OK [PERMANENTFLAGS (\\Seen \\Draft \\Answered \\Deleted)]");
404 String mailbox = token().atom();
405 Token[] list = token().l();
406 String response = "";
407 for(int i=0; i<list.length; i++) {
408 String s = list[i].atom();
409 if (s.equals("MESSAGES")) response += "MESSAGES " + api.count(mailbox);
410 if (s.equals("RECENT")) response += "RECENT " + api.seen(mailbox);
411 if (s.equals("UIDNEXT")) response += "UNSEEN " + api.recent(mailbox);
412 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + api.uidValidity(mailbox);
413 if (s.equals("UNSEEN")) response += "UIDNEXT " + api.uidNext(mailbox);
415 star("STATUS " + selectedName + " (" + response + ")");
419 String m = token().atom();
423 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
424 if (t.type == t.QUOTED) { arrival = t.datetime(); t = token(); }
425 api.append(m, flags, arrival, token().q());
429 Query q = uid ? Query.uid(token().set()) : Query.num(token().set());
430 String s = token().atom().toUpperCase();
431 int flags = token().flags();
432 if (s.equals("FLAGS")) api.setFlags(q, flags, uid);
433 else if (s.equals("+FLAGS")) api.addFlags(q, flags, uid);
434 else if (s.equals("-FLAGS")) api.removeFlags(q, flags, uid);
435 else if (s.equals("FLAGS.SILENT")) api.setFlags(q, flags, uid);
436 else if (s.equals("+FLAGS.SILENT")) api.addFlags(q, flags, uid);
437 else if (s.equals("-FLAGS.SILENT")) api.removeFlags(q, flags, uid); // FIXME slient
438 else throw new Server.Bad("unknown STORE specifier " + s);
440 default: throw new Server.Bad("unrecognized command \"" + command + "\"");
442 println(tag+" OK "+command+" Completed. " +
443 (commandKey == LOGIN ? ("[CAPABILITY "+Printer.join(" ", api.capability())+"]") : ""));
444 } catch (Server.Bad b) { println(tag==null ? "* BAD Invalid tag":(tag + " Bad " + b.toString())); b.printStackTrace();
445 } catch (Server.No n) { println(tag==null?"* BAD Invalid tag":(tag+" No " + n.toString())); n.printStackTrace(); }
448 private static final Hashtable commands = new Hashtable();
449 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
450 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
451 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
452 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
453 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
454 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
455 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
456 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
457 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
458 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
459 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
460 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
461 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
462 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
463 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
464 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
465 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
466 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
467 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
468 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
469 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
470 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
471 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
472 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
473 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
474 private static final int SEARCH = 25; static { commands.put("SEARCH", new Integer(SEARCH)); }
477 public static class Parser {
478 private final Socket conn;
479 private final InputStream is;
480 private final PushbackReader r;
481 private final PrintWriter pw;
482 public Parser(Socket conn) throws IOException {
484 this.is = conn.getInputStream();
485 this.pw = new PrintWriter(new OutputStreamWriter(conn.getOutputStream()));
486 this.r = new PushbackReader(new InputStreamReader(this.is));
488 protected void flush() { pw.flush(); }
489 protected void println(String s) {
490 pw.print(s + "\r\n");
492 if (log.length() > 0) Log.info(IMAP.Client.class, log); log = "";
493 Log.debug(IMAP.Server.class, s);
495 protected Query query() {
501 if (t.type == t.LIST) throw new Server.No("nested queries not yet supported FIXME");
502 else if (t.type == t.SET) return Query.num(t.set());
504 if (s.equals("NOT")) { not = true; continue; }
505 if (s.equals("OR")) return Query.or(query(), query()); // FIXME parse rest of list
506 if (s.equals("AND")) return Query.and(query(), query());
509 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
510 if (s.equals("ANSWERED")) q = Query.answered();
511 else if (s.equals("DELETED")) q = Query.deleted();
512 else if (s.equals("ALL")) q = Query.all();
513 else if (s.equals("DRAFT")) q = Query.draft();
514 else if (s.equals("FLAGGED")) q = Query.flagged();
515 else if (s.equals("RECENT")) q = Query.recent();
516 else if (s.equals("SEEN")) q = Query.seen();
517 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
518 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
519 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
520 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
521 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
522 else if (s.equals("CC")) q = Query.header("cc", token().astring());
523 else if (s.equals("FROM")) q = Query.header("from", token().astring());
524 else if (s.equals("TO")) q = Query.header("to", token().astring());
525 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
526 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
527 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
528 else if (s.equals("BODY")) q = Query.body(token().astring());
529 else if (s.equals("TEXT")) q = Query.full(token().astring());
530 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
531 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
532 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
533 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
534 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
535 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
536 else if (s.equals("UID")) q = Query.uid(token().set());
540 private static void bad(String s) { throw new Server.Bad(s); }
542 public final byte type;
543 private final String s;
544 private final Token[] l;
546 private static final byte NIL = 0, LIST = 1, QUOTED = 2, NUMBER = 3, ATOM = 4, BAREWORD = 5, SET = 6;
547 public Token() { this.s = null; n = 0; l = null; type = NIL; }
548 public Token(String s) { this(s, false); }
549 public Token(String s, boolean quoted) { this.s = s; n = 0; l = null; type = quoted ? QUOTED : ATOM; }
550 public Token(Token[] list) { this.s = null; n = 0; l = list; type = LIST; }
551 public Token(int number) { this.s = null; n = number; l = null; type = NUMBER; }
553 public String flag() { if (type != ATOM) bad("expected a flag"); return s; }
554 public int n() { if (type != NUMBER) bad("expected number"); return n; }
555 public int nz() { int n = n(); if (n == 0) bad("expected nonzero number"); return n; }
556 public String q() { if (type == NIL) return null; if (type != QUOTED) bad("expected qstring"); return s; }
557 public Token[] l() { if (type == NIL) return null; if (type != LIST) bad("expected list"); return l; }
558 public String nstring() { if (type==NIL) return null; if (type!=QUOTED) bad("expected nstring"); return s; }
559 public String astring() {
560 if (type != ATOM && type != QUOTED) bad("expected atom or string");
561 if (s == null) bad("astring cannot be null");
563 public String[] sl() {
564 if (type == NIL) return null;
565 if (type != LIST) bad("expected list");
566 String[] ret = new String[l.length];
567 for(int i=0; i<ret.length; i++) ret[i] = l[i].s;
571 if (type != LIST) bad("expected flag list");
573 for(int i=0; i<l.length; i++) {
574 String flag = l[i].s;
575 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
576 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
577 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
578 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
579 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
580 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
585 if (type != ATOM) bad("expected a messageid set");
586 Vec.Int ids = new Vec.Int();
587 StringTokenizer st = new StringTokenizer(s, ",");
588 while(st.hasMoreTokens()) {
589 String s = st.nextToken();
590 if (s.indexOf(':') == -1) { ids.addElement(Integer.parseInt(s));ids.addElement(Integer.parseInt(s));continue; }
591 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
592 String end_s = s.substring(s.indexOf(':')+1);
593 if (end_s.equals("*")) { ids.addElement(start); ids.addElement(Integer.MAX_VALUE); }
595 int end = Integer.parseInt(end_s);
596 for(int j=Math.min(start,end); j<=Math.min(start,end); j++)
603 if (type != QUOTED && type != ATOM) bad("Expected quoted or unquoted date");
604 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
605 } catch (ParseException p) { throw new Server.Bad("invalid date format; " + p); }
607 public Date datetime() {
608 if (type != QUOTED) bad("Expected quoted datetime");
609 try { return new SimpleDateFormat("dd-MM-yyyy hh:mm:ss zzzz").parse(s.trim());
610 } catch (ParseException p) { throw new Server.Bad("invalid datetime format " + s + " : " + p); }
612 public String atom() {
613 if (type != ATOM) bad("expected atom");
614 for(int i=0; i<s.length(); i++) {
615 char c = s.charAt(i);
616 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*' || c == '\"' | c == '\\')
617 bad("invalid char in atom: " + c);
619 return s; // FIXME: make sure we're being case-insensitive enough; probably want to upcase here
623 private String log = "";
624 public char getc() throws IOException {
626 if (ret == -1) throw new EOFException();
627 if (ret == '\n') { if (log.length() > 0) { Log.info(IMAP.class, log); log = ""; } }
628 else if (ret != '\r') log += (char)ret;
631 public char peekc() throws IOException {
633 if (ret == -1) throw new EOFException();
637 public void fill(byte[] b) throws IOException {
639 while (num < b.length) {
640 int numread = is.read(b, num, b.length - num);
641 if (numread == -1) throw new EOFException();
646 // FIXME: IOException handling
647 public void newline() { try {
648 for(char c = peekc(); c == ' ';) { getc(); c = peekc(); };
649 for(char c = peekc(); c == '\r' || c == '\n';) { getc(); c = peekc(); };
650 } catch (IOException e) { e.printStackTrace(); } }
652 public Token token() { try {
653 Vec toks = new Vec();
654 StringBuffer sb = new StringBuffer();
655 char c = getc(); while (c == ' ') c = getc();
656 if (c == '\r' || c == '\n') bad("unexpected end of line");
658 while(peekc() != '}') sb.append(getc());
659 println("+ Ready when you are...");
660 int octets = Integer.parseInt(sb.toString());
661 while(peekc() == ' ') getc(); // whitespace
662 while (getc() != '\n' && getc() != '\r') { }
663 byte[] bytes = new byte[octets];
665 return new Token(new String(bytes), true);
666 } else if (c == '\"') {
669 if (c == '\\') sb.append(getc());
670 else if (c == '\"') break;
673 return new Token(sb.toString(), true);
675 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
676 } else if (c == ']' || c == ')') { return null;
677 } else if (c == '[' || c == '(') {
679 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
680 Token[] ret = new Token[toks.size()];
682 return new Token(ret);
687 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
688 c == '{' || c == '\n' || c == '\r')
689 return new Token(sb.toString(), false);
692 } catch (IOException e) { e.printStackTrace(); } return null; }
695 public static class Printer {
696 static String quotify(String s){
697 return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
698 static String quotify(Date d) {
699 return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
700 static String address(Address a) {
701 return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
702 public static String addressList(Object a) {
703 if (a == null) return "NIL";
704 if (a instanceof Address) return "("+address((Address)a)+")";
705 Address[] aa = (Address[])a;
706 StringBuffer ret = new StringBuffer();
708 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
710 return ret.toString();
712 static String flags(Mailbox.Iterator it) {
714 (it.deleted() ? "\\Deleted " : "") +
715 (it.seen() ? "\\Seen " : "") +
716 (it.flagged() ? "\\Flagged " : "") +
717 (it.draft() ? "\\Draft " : "") +
718 (it.answered() ? "\\Answered " : "") +
719 (it.recent() ? "\\Recent " : "");
721 static String flags(int flags) {
723 (((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED) ? "\\Deleted " : "") +
724 (((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) ? "\\Seen " : "") +
725 (((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED) ? "\\Flagged " : "") +
726 (((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT) ? "\\Draft " : "") +
727 (((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED)? "\\Answered " : "") +
728 (((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT) ? "\\Recent " : "");
729 if (ret.endsWith(" ")) ret = ret.substring(0, ret.length() - 1);
732 static String bodystructure(Message m) {
734 return "(\"TEXT\" \"PLAIN\" () NIL NIL \"7BIT\" "+m.rfc822size()+" "+m.lines+")";
736 static String message(Message m) { return m.rfc822(); }
737 static String date(Date d) { return d.toString(); }
738 static String envelope(Message m) {
740 "(" + quotify(m.arrival.toString()) +
741 " " + quotify(m.subject) +
742 " " + addressList(m.from) +
743 " " + addressList(m.headers.get("sender")) +
744 " " + addressList(m.replyto) +
745 " " + addressList(m.to) +
746 " " + addressList(m.cc) +
747 " " + addressList(m.bcc) +
748 " " + quotify((String)m.headers.get("in-reply-to")) +
749 " " + quotify(m.messageid) +
753 public static String qq(String s) {
754 StringBuffer ret = new StringBuffer(s.length() + 20);
756 ret.append(s.length());
761 return ret.toString();
764 private static String join(int[] nums) {
765 StringBuffer ret = new StringBuffer();
766 for(int i=0; i<nums.length; i++) {
768 if (i<nums.length-1) ret.append(' ');
770 return ret.toString();
772 private static String join(String delimit, String[] stuff) {
773 StringBuffer ret = new StringBuffer();
774 for(int i=0; i<stuff.length; i++) {
775 ret.append(stuff[i]);
776 if (i<stuff.length - 1) ret.append(delimit);
778 return ret.toString();
783 // Main //////////////////////////////////////////////////////////////////////////////
785 /** simple listener for testing purposes */
786 public static void main(String[] args) throws Exception {
787 ServerSocket ss = new ServerSocket(143);
789 final Socket s = ss.accept();
790 new Thread() { public void run() { try {
791 final Mailbox root = FileBasedMailbox.getFileBasedMailbox(Mailbox.STORAGE_ROOT+File.separatorChar+"imap", true);
792 new Listener(s, root,
793 new Server.Authenticator() {
794 public Mailbox authenticate(String u, String p) {
795 if (u.equals("megacz")&&p.equals("pass")) return root.slash("users",true).slash("megacz",true);
797 } } ).handleRequest();
798 } catch (Exception e) { e.printStackTrace(); } } }.start();