1 package org.ibex.mail.protocol;
2 import org.ibex.mail.*;
3 import org.ibex.util.*;
4 import org.ibex.mail.target.*;
12 // RFC 3501: IMAPv4 with clarifications
16 // FEATURE: MIME-queries
17 // FEATURE: READ-WRITE / READ-ONLY status on SELECT
18 // FEATURE: pipelining
19 // FEATURE: support [charset]
21 // FEATURE: subscriptions
25 public static final float version = (float)0.1;
27 // API Class //////////////////////////////////////////////////////////////////////////////
29 public static final int
30 PEEK=0x1, BODYSTRUCTURE=0x2, ENVELOPE=0x4, FLAGS=0x8, INTERNALDATE=0x10,
31 RFC822=0x20, RFC822TEXT=0x40, RFC822SIZE=0x80, NEGATEHEADERS=0x100, UID=0x200, RFC822HEADER=0x400;
33 public static interface API {
34 public String[] capability();
35 public Hashtable id(Hashtable clientId);
36 public void copy(Query q, String to);
37 public void login(String u, String p);
39 public void unselect();
40 public void delete(String m);
41 public void create(String m);
42 public void append(String m, int flags, Date arrival, String body);
46 public void subscribe(String mailbox);
47 public void unsubscribe(String mailbox);
48 public int seen(String mailbox);
49 public int recent(String mailbox);
50 public int count(String mailbox);
51 public int uidNext(String mailbox);
52 public int uidValidity(String mailbox);
53 public void rename(String from, String to);
54 public void select(String mailbox, boolean examineOnly);
56 public static interface Client {
57 public void expunge(int uid);
58 public void list(char separator, String mailbox);
59 public void lsub(char separator, String mailbox);
60 public void fetch(int uidnum, int flags, int size, Message m); // m may be null or incomplete
63 public void setFlags(Query q, int flags, boolean uid, Client c);
64 public void removeFlags(Query q, int flags, boolean uid, Client c);
65 public void addFlags(Query q, int flags, boolean uid, Client c);
66 public void expunge(Client client);
67 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid, Client c);
68 public void lsub(String start, String ref, Client client);
69 public void list(String start, String ref, Client client);
71 public static interface Authenticator { public abstract Mailbox authenticate(String user, String pass); }
72 public static class Exn extends MailException { public Exn(String s) { super(s); } }
73 public static class Bad extends Exn { public Bad(String s) { super(s); } }
74 public static class No extends Exn { public No(String s) { super(s); } }
78 // SocketWrapper //////////////////////////////////////////////////////////////////////////////
80 public static class SocketWrapper /* implements API */ {
81 // eventually this will implement the client side of an IMAP socket conversation
84 // MailboxWrapper //////////////////////////////////////////////////////////////////////////////
86 /** wraps an IMAP.API interface around a Mailbox */
87 public static class MailboxWrapper implements API {
90 Mailbox selected = null;
91 Mailbox selected() { if (selected == null) throw new API.Bad("no mailbox selected"); return selected; }
92 final API.Authenticator auth;
94 public static final char sep = '.';
96 private final Mailbox root;
97 public MailboxWrapper(Mailbox root, API.Authenticator auth) { this.root = root; this.auth = auth; }
99 private Mailbox getMailbox(String name, boolean create) {
101 for(StringTokenizer st = new StringTokenizer(name, sep + ""); st.hasMoreTokens();)
102 if ((m = m.slash(st.nextToken(), create)) == null) throw new API.No("no such mailbox " + name);
106 // FEATURE: not accurate when a wildcard and subsequent non-wildcards both match a single component
107 public void lsub(String start, String ref, Client client) { list(start, ref, client); }
108 public void list(String start, String ref, Client client) {
109 if (ref.length() == 0 && start.length() == 0) { client.list(sep, ""); return; }
110 while (start.endsWith(""+sep)) start = start.substring(0, start.length() - 1);
111 String[] children = (start.length() == 0 ? root : getMailbox(start, false)).children();
112 for(int i=0; i<children.length; i++) {
113 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? sep+"" : "") + s;
115 if (pre.length() == 0) {
116 if (s.length() == 0) client.list(sep, kid);
117 } else switch(pre.charAt(0)) {
118 case sep: if (s.length() == 0) list(kid, pre.substring(1), client); break;
119 case '%': client.list(sep, kid); pre=pre.substring(1); list(kid, pre, client); break;
120 case '*': client.list(sep, kid); list(kid, pre, client); pre = pre.substring(1); break;
121 default: if (s.length()==0) break;
122 if (s.charAt(0) != pre.charAt(0)) break;
123 s = s.substring(1); pre = pre.substring(1); continue;
130 public String[] capability() { return new String[] { "IMAP4rev1", "UNSELECT", "ID" }; }
131 public Hashtable id(Hashtable clientId) {
132 Hashtable response = new Hashtable();
133 response.put("name", IMAP.class.getName());
134 response.put("version", version + "");
135 response.put("os", System.getProperty("os.name", null));
136 response.put("os-version", System.getProperty("os.version", null));
137 response.put("vendor", "none");
138 response.put("support-url", "http://mail.ibex.org/");
142 public void copy(Query q, String to0) {
143 Mailbox to = getMailbox(to0, false); for(Mailbox.Iterator it=selected.iterator(q);it.next();) to.add(it.cur()); }
144 public void login(String u, String p) { if ((inbox = auth.authenticate(u,p)) == null) throw new API.No("Login failed."); }
145 public void logout() { }
146 public void unselect() { selected = null; }
147 public void delete(String m0) { Mailbox m = getMailbox(m0, false); if (m != inbox) m.destroy(); }
148 public void create(String m) { if (!m.endsWith(""+sep)) getMailbox(m, true); }
149 public void append(String m, int flags, Date arrival, String body) {
150 getMailbox(m, false).add(new Message(null,null,body,arrival), flags); }
151 public void check() { }
152 public void noop() { }
153 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); unselect(); }
154 public void expunge(Client c) { for(Mailbox.Iterator it = selected().iterator(Query.deleted());it.next();) expunge(it,c); }
155 public void expunge(Mailbox.Iterator it, Client client) { client.expunge(it.uid()); it.delete(); }
156 public void subscribe(String mailbox) { }
157 public void unsubscribe(String mailbox) { }
158 public int seen(String mailbox) { return getMailbox(mailbox, false).count(Query.seen()); }
159 public int recent(String mailbox) { return getMailbox(mailbox, false).count(Query.recent()); }
160 public int count(String mailbox) { return getMailbox(mailbox, false).count(Query.all()); }
161 public int uidNext(String mailbox) { return getMailbox(mailbox, false).uidNext(); }
162 public int uidValidity(String mailbox) { return getMailbox(mailbox, false).uidValidity(); }
163 public void select(String mailbox, boolean examineOnly) { selected = getMailbox(mailbox, false); }
164 public void setFlags(Query q, int f, boolean uid, Client c) { doFlags(q, f, c, uid, 0); }
165 public void addFlags(Query q, int f, boolean uid, Client c) { doFlags(q, f, c, uid, 1); }
166 public void removeFlags(Query q, int f, boolean uid, Client c) { doFlags(q, f, c, uid, -1); }
167 private void doFlags(Query q, int flags, Client c, boolean uid, int style) {
168 for(Mailbox.Iterator it = selected.iterator(q);it.next();) {
170 case -1: it.removeFlags(flags);
171 case 0: it.setFlags(flags);
172 case 1: it.addFlags(flags);
174 if (c != null) c.fetch(uid ? it.uid() : it.num(), it.flags(), -1, null);
177 public void rename(String from0, String to) {
178 Mailbox from = getMailbox(from0, false);
179 if (from.equals(inbox)) { from.copy(Query.all(), getMailbox(to, true)); }
180 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), getMailbox(to, true)); from.destroy(); }
181 else from.rename(to);
183 public void fetch(Query q, int spec, String[] headers, int start, int end, boolean uid, Client client) {
184 for(Mailbox.Iterator it = selected.iterator(q); it.next(); )
185 client.fetch(uid ? it.uid() : it.num(), it.flags(), it.cur().rfc822size(), it.cur());
190 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
192 /** takes an IMAP.API and exposes it to the world as an IMAP server on a TCP socket */
193 private static class Server extends Parser implements API.Client {
194 String selectedName = null;
195 Mailbox inbox = null;
200 public void init() { }
201 public Server(Socket conn, Mailbox root, API.Authenticator auth) throws IOException {
202 this(conn, java.net.InetAddress.getLocalHost().getHostName(), root, auth); }
203 public Server(Socket conn, String vhost, Mailbox root, API.Authenticator auth) throws IOException {
205 this.api = new IMAP.MailboxWrapper(root, auth);
206 this.vhost = vhost; this.conn = conn; this.root = root;
210 private Token[] lastfetch = null; // hack
211 private boolean lastuid = false; // hack
212 public void fetch(int uidnum, int flags, int size, Message m) {
213 fetch(null, lastfetch, uidnum, flags, size, lastuid, m); }
214 public void expunge(int uid) { star(uid + " EXPUNGE"); }
215 public void list(char separator, String mailbox) { star("LIST \"" + separator + "\" \""+mailbox+"\""); }
216 public void lsub(char separator, String mailbox) { star("LSUB \"" + separator + "\" \""+mailbox+"\""); }
217 public void star(String s) { println("* " + s); }
219 public boolean handleRequest() throws IOException {
220 star("OK " + vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
221 for(String tag = null;; newline()) try {
224 tag = null; tag = token().atom();
225 String command = token().atom();
226 if (command.equals("UID")) { uid = true; command = token().atom(); }
227 switch(((Integer)commands.get(command.toUpperCase())).intValue()) {
228 case AUTHENTICATE: api.login(token().astring(), token().astring()); break;
229 case LOGIN: api.login(token().astring(), token().astring()); break;
230 case LOGOUT: api.logout(); star("BYE"); conn.close(); return false;
231 case LIST: api.list(token().q(), token().q(), this); break;
232 case LSUB: api.lsub(token().q(), token().q(), this); break;
233 case SUBSCRIBE: api.subscribe(token().atom()); break;
234 case UNSUBSCRIBE: api.unsubscribe(token().atom()); break;
235 case CAPABILITY: star("CAPABILITY " + Printer.join(" ", api.capability())); break;
236 //case ID: id(); break;
237 case RENAME: api.rename(token().atom(), token().atom()); break;
238 case EXAMINE: api.select(token().astring(), true); break;
239 case COPY: api.copy(Query.set(uid, token().set()), token().atom()); break;
240 case DELETE: api.delete(token().atom()); break;
241 case CHECK: api.check(); break;
242 case NOOP: api.noop(); break;
243 case CLOSE: api.close(); break;
244 case EXPUNGE: api.expunge(this); break;
245 case UNSELECT: api.unselect(); break;
246 case CREATE: api.create(token().astring()); break;
247 case FETCH: fetch(Query.set(lastuid = uid, token().set()), token().l(), 0, 0, 0, uid, null); break;
249 String mailbox = token().astring();
250 api.select(mailbox, false);
251 star("FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
252 star(api.count(mailbox) + " EXISTS");
253 star(api.recent(mailbox) + " RECENT");
254 star("OK [UIDVALIDITY " + api.uidValidity(mailbox) + "] UIDs valid");
257 String mailbox = token().atom();
258 Token[] list = token().l();
259 String response = "";
260 for(int i=0; i<list.length; i++) {
261 String s = list[i].atom();
262 if (s.equals("MESSAGES")) response += "MESSAGES " + api.count(mailbox);
263 if (s.equals("RECENT")) response += "RECENT " + api.seen(mailbox);
264 if (s.equals("UIDNEXT")) response += "UNSEEN " + api.recent(mailbox);
265 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + api.uidValidity(mailbox);
266 if (s.equals("UNSEEN")) response += "UIDNEXT " + api.uidNext(mailbox);
268 star("STATUS " + selectedName + " (" + response + ")");
271 String m = token().atom();
275 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
276 if (t.type == t.QUOTED) { arrival = t.datetime(); t = token(); }
277 api.append(m, flags, arrival, token().q());
280 Query q = uid ? Query.uid(token().set()) : Query.num(token().set());
281 String s = token().atom();
282 int flags = token().flags();
283 if (s.equals("FLAGS")) api.setFlags(q, flags, uid, null);
284 else if (s.equals("+FLAGS")) api.addFlags(q, flags, uid, null);
285 else if (s.equals("-FLAGS")) api.removeFlags(q, flags, uid, null);
286 if (s.equals("FLAGS.SILENT")) api.setFlags(q, flags, uid, this);
287 else if (s.equals("+FLAGS.SILENT")) api.addFlags(q, flags, uid, this);
288 else if (s.equals("-FLAGS.SILENT")) api.removeFlags(q, flags, uid, this);
289 else throw new API.Bad("unknown STORE specifier " + s);
291 default: throw new API.Bad("unrecognized command \"" + command + "\"");
293 println(tag + " OK " + command + " Completed.");
294 } catch (API.Bad b) { println(tag==null ? "* BAD Invalid tag" : (tag + " Bad " + b.toString())); b.printStackTrace();
295 } catch (API.No n) { println(tag==null ? "* BAD Invalid tag" : (tag + " No " + n.toString())); n.printStackTrace(); }
299 * Parse a fetch request <i>or</i> emit a fetch reply.
301 * To avoid duplicating tedious parsing logic, this function
302 * performs both of the following tasks:
303 * - parse the fetch request in Token[] t and return a fetch spec
304 * - emit a fetch reply for the parsed spec with respect to message m
306 private void fetch(Query q, Token[] t, int uidnum, int flags, int size, boolean uid, Message m) {
308 boolean e = m != null;
309 int spec = 0; // spec; see constants for flags
310 String[] headers = null;
311 int start = -1, end = -1;
312 StringBuffer r = new StringBuffer(); // reply
313 if(e){ r.append(uidnum); r.append(" FETCH ("); }
314 for(int i=0; i<t.length; i++) {
315 if (i>0) r.append(" ");
316 String s = t[i].s.toUpperCase();
318 if (s.equals("BODYSTRUCTURE")) { spec|=BODYSTRUCTURE;if(e){r.append(" ");r.append(Printer.bodystructure(m));}
319 } else if (s.equals("ENVELOPE")) { spec|=ENVELOPE; if(e){r.append(" "); r.append(Printer.envelope(m));}
320 } else if (s.equals("FLAGS")) { spec|=FLAGS; if(e){r.append(" "); r.append(Printer.flags(flags));}
321 } else if (s.equals("INTERNALDATE")) { spec|=INTERNALDATE; if(e){r.append(" "); r.append(Printer.date(m.arrival));}
322 } else if (s.equals("RFC822")) { spec|=RFC822; if(e){r.append(" "); r.append(Printer.message(m));}
323 } else if (s.equals("RFC822.TEXT")) { spec|=RFC822TEXT; if(e){r.append(" ");r.append(Printer.qq(m.body));}
324 } else if (s.equals("RFC822.HEADER")) { spec|=RFC822HEADER; if(e){r.append(" ");r.append(Printer.qq(m.allHeaders));}
325 } else if (s.equals("RFC822.SIZE")) { spec|=RFC822SIZE; if(e){r.append(" "); r.append(m.rfc822size());}
326 } else if (s.equals("BODY.PEEK") || s.equals("BODY")) {
327 if (s.equalsIgnoreCase("BODY.PEEK")) spec |= PEEK;
329 if (i<t.length - 1 && (t[i+1].type == t[i].LIST)) {
331 String s2 = t[i].l()[0].s.toUpperCase();
332 if (t[i].l().length == 0) { spec |= RFC822TEXT; if(e) payload = m.body; }
333 else if (s2.equals("")) { spec |= RFC822TEXT; if(e) payload = m.body; }
334 else if (s2.equals("TEXT")) { spec |= RFC822TEXT; if(e) payload = m.body; }
335 else if (s2.equals("HEADER")) { spec |= RFC822HEADER; if(e) payload = m.allHeaders; }
336 else if (s2.equals("HEADER.FIELDS")) {
337 spec |= RFC822HEADER;
338 headers = t[i].l()[1].sl();
339 if(e) for(int j=0; j<headers.length; j++) payload += headers[j] + ": " + m.headers.get(headers[j]);
340 } else if (s2.equals("HEADER.FIELDS.NOT")) {
341 spec |= RFC822HEADER|NEGATEHEADERS;
342 headers = t[i].l()[1].sl();
343 if(e) { OUTER: for(Enumeration x=m.headers.keys(); x.hasMoreElements();) {
344 String key = (String)x.nextElement();
345 for(int j=0; j<headers.length; j++) if (key.equalsIgnoreCase(headers[j])) continue OUTER;
346 payload += key + ": " + m.headers.get(key);
348 } else if (s2.equals("MIME")) { throw new API.Bad("MIME not supported");
349 } else throw new API.Bad("unknown section type " + s2);
350 if (i<t.length - 1 && (t[i+1].s != null && t[i+1].s.startsWith("<"))) {
352 String s3 = t[i].s.substring(1, s.indexOf('>'));
353 int dot = s3.indexOf('.');
354 start = dot == -1 ? Integer.parseInt(s3) : Integer.parseInt(s3.substring(0, s3.indexOf('.')));
355 end = dot == -1 ? -1 : Integer.parseInt(s3.substring(s3.indexOf('.') + 1));
356 if (e) { payload = payload.substring(start, end+1); r.append("<"+start+">"); }
359 if (e) payload = m.body;
361 if (e) { r.append(" "); r.append(Printer.qq(payload)); }
363 throw new API.No("unknown fetch argument: " + s);
370 api.fetch(q, spec, headers, start, end, uid, this);
374 private static final Hashtable commands = new Hashtable();
375 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
376 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
377 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
378 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
379 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
380 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
381 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
382 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
383 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
384 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
385 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
386 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
387 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
388 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
389 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
390 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
391 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
392 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
393 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
394 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
395 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
396 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
397 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
398 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
399 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
402 public static class Parser {
403 private final Socket conn;
404 private final InputStream is;
405 private final PushbackReader r;
406 private final PrintWriter pw;
407 public Parser(Socket conn) throws IOException {
409 this.is = conn.getInputStream();
410 this.pw = new PrintWriter(new OutputStreamWriter(conn.getOutputStream()));
411 this.r = new PushbackReader(new InputStreamReader(this.is));
413 protected void println(String s) { pw.println(s); pw.flush(); }
414 protected void flush() { pw.flush(); }
421 if (t.type == t.LIST) throw new API.No("nested queries not yet supported");
422 else if (t.type == t.SET) return Query.num(t.set());
424 if (s.equals("NOT")) { not = true; continue; }
425 if (s.equals("OR")) return Query.or(query(), query());
426 if (s.equals("AND")) return Query.and(query(), query());
429 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
430 if (s.equals("ANSWERED")) q = Query.answered();
431 else if (s.equals("DELETED")) q = Query.deleted();
432 else if (s.equals("DRAFT")) q = Query.draft();
433 else if (s.equals("FLAGGED")) q = Query.flagged();
434 else if (s.equals("RECENT")) q = Query.recent();
435 else if (s.equals("SEEN")) q = Query.seen();
436 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
437 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
438 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
439 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
440 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
441 else if (s.equals("CC")) q = Query.header("cc", token().astring());
442 else if (s.equals("FROM")) q = Query.header("from", token().astring());
443 else if (s.equals("TO")) q = Query.header("to", token().astring());
444 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
445 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
446 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
447 else if (s.equals("BODY")) q = Query.body(token().astring());
448 else if (s.equals("TEXT")) q = Query.full(token().astring());
449 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
450 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
451 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
452 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
453 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
454 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
455 else if (s.equals("UID")) q = Query.uid(token().set());
461 public final String s;
462 public final Token[] l;
464 private static final byte NIL = 0;
465 private static final byte LIST = 1;
466 private static final byte QUOTED = 2;
467 private static final byte NUMBER = 3;
468 private static final byte ATOM = 4;
469 private static final byte BAREWORD = 5;
470 private static final byte SET = 6;
471 public Token() { n = 0; l = null; s = null; type = NIL; }
472 public Token(String s, boolean quoted) { this.s = s; l = null; type = quoted ? QUOTED : ATOM; n = 0; }
473 public Token(Token[] list) { l = list; s = null; type = LIST; n = 0; }
474 public Token(int number) { n = number; l = null; s = null; type = NUMBER; }
476 public String flag() { if (type != ATOM) throw new API.Bad("expected a flag"); return s; }
477 public int n() { if (type != NUMBER) throw new API.Bad("expected number"); return n; }
478 public int nz() { int n = n(); if (n == 0) throw new API.Bad("expected nonzero number"); return n; }
479 public String q() { if (type == NIL) return null; if (type != QUOTED) throw new API.Bad("expected qstring"); return s; }
480 public Token[] l() { if (type == NIL) return null; if (type != LIST) throw new API.Bad("expected list"); return l; }
481 public String[] sl() {
482 if (type == NIL) return null;
483 if (type != LIST) throw new API.Bad("expected list");
484 String[] ret = new String[l.length];
485 for(int i=0; i<ret.length; i++) ret[i] = l[i].s;
488 public String nstring() { if (type==NIL) return null; if (type==QUOTED) return s; throw new API.Bad("expected nstring"); }
489 public String astring() { if (type == ATOM || type == QUOTED) return s; throw new API.Bad("expected atom or string"); }
492 if (type != LIST) throw new API.Bad("expected flag list");
494 for(int i=0; i<l.length; i++) {
495 String flag = l[i].s;
496 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
497 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
498 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
499 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
500 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
501 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
506 if (type != ATOM) throw new API.Bad("expected a messageid set");
508 StringTokenizer st = new StringTokenizer(s, ",");
509 while(st.hasMoreTokens()) {
510 String s = st.nextToken();
511 if (s.indexOf(':') != -1) {
512 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
513 String end_s = s.substring(s.indexOf(':')+1);
514 if (end_s.equals("*")) {
515 ids.addElement(new Integer(start));
516 ids.addElement(new Integer(Integer.MAX_VALUE));
518 int end = Integer.parseInt(end_s);
519 for(int j=start; j<=end; j++) ids.addElement(new Integer(j));
522 ids.addElement(new Integer(Integer.parseInt(s)));
523 ids.addElement(new Integer(Integer.parseInt(s)));
526 int[] ret = new int[ids.size()];
527 for(int i=0; i<ret.length; i++) ret[i] = ((Integer)ids.elementAt(i)).intValue();
531 if (type != QUOTED && type != ATOM) throw new API.Bad("Expected quoted or unquoted date");
532 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
533 } catch (ParseException p) { throw new API.Bad("invalid date format; " + p); }
535 public Date datetime() {
536 if (type != QUOTED && type != ATOM) throw new API.Bad("Expected quoted or unquoted datetime");
537 try { return new SimpleDateFormat("dd-MM-yyyy hh:mm:ss").parse(s.trim());
538 } catch (ParseException p) { throw new API.Bad("invalid datetime format " + s + " : " + p); }
540 public String atom() {
541 if (type != ATOM) throw new API.Bad("expected atom");
542 for(int i=0; i<s.length(); i++) {
543 char c = s.charAt(i);
544 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*')
545 throw new API.Bad("invalid char in atom: " + c);
551 public char getc() throws IOException {
553 if (ret == -1) throw new EOFException();
556 public char peekc() throws IOException {
558 if (ret == -1) throw new EOFException();
562 public void fill(byte[] b) throws IOException {
564 while (num < b.length) {
565 int numread = is.read(b, num, b.length - num);
566 if (numread == -1) throw new EOFException();
571 public void newline() {
573 for(char c = peekc(); c == ' ';) { getc(); c = peekc(); };
574 for(char c = peekc(); c == '\r' || c == '\n';) { getc(); c = peekc(); };
575 } catch (IOException e) {
580 public Token token() {
582 Vec toks = new Vec();
583 StringBuffer sb = new StringBuffer();
584 char c = getc(); while (c == ' ') c = getc();
585 if (c == '\r' || c == '\n') {
586 throw new API.Bad("unexpected end of line");
588 while(peekc() != '}') sb.append(getc());
589 int octets = Integer.parseInt(sb.toString());
590 while(peekc() == ' ') getc(); // whitespace
591 while (getc() != '\n' && getc() != '\r') { }
592 byte[] bytes = new byte[octets];
594 return new Token(new String(bytes), true);
595 } else if (c == '\"') {
598 if (c == '\\') sb.append(getc());
599 else if (c == '\"') break;
602 return new Token(sb.toString(), true);
604 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
605 } else if (c == ']' || c == ')') { return null;
606 } else if (c == '[' || c == '(') {
608 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
609 Token[] ret = new Token[toks.size()];
611 return new Token(ret);
616 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
617 c == '{' || c == '\n' || c == '\r')
618 return new Token(sb.toString(), false);
621 } catch (IOException e) {
628 public static class Printer {
629 static String quotify(String s){return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
630 static String quotify(Date d) { return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
631 static String address(Address a) {return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
632 public static String addressList(Object a) {
633 if (a == null) return "NIL";
634 if (a instanceof Address) return "("+address((Address)a)+")";
635 Address[] aa = (Address[])a;
636 StringBuffer ret = new StringBuffer();
638 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
640 return ret.toString();
642 static String flags(Mailbox.Iterator it) {
644 (it.deleted() ? "\\Deleted " : "") +
645 (it.seen() ? "\\Seen " : "") +
646 (it.flagged() ? "\\Flagged " : "") +
647 (it.draft() ? "\\Draft " : "") +
648 (it.answered() ? "\\Answered " : "") +
649 (it.recent() ? "\\Recent " : "");
651 static String flags(int flags) {
653 (((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED) ? "\\Deleted " : "") +
654 (((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN) ? "\\Seen " : "") +
655 (((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED) ? "\\Flagged " : "") +
656 (((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT) ? "\\Draft " : "") +
657 (((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED)? "\\Answered " : "") +
658 (((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT) ? "\\Recent " : "");
660 static String bodystructure(Message m) {
662 return "(\"TEXT\" \"PLAIN\" () NIL NIL \"7BIT\" "+m.rfc822size()+" "+m.lines+")";
664 static String message(Message m) { return m.rfc822(); }
665 static String date(Date d) { return d.toString(); }
666 static String envelope(Message m) {
668 "(" + quotify(m.arrival.toString()) +
669 " " + quotify(m.subject) +
670 " " + addressList(m.from) +
671 " " + addressList(m.headers.get("sender")) +
672 " " + addressList(m.replyto) +
673 " " + addressList(m.to) +
674 " " + addressList(m.cc) +
675 " " + addressList(m.bcc) +
676 " " + quotify((String)m.headers.get("in-reply-to")) +
677 " " + quotify(m.messageid) +
681 public static String qq(String s) {
682 StringBuffer ret = new StringBuffer(s.length() + 20);
684 ret.append(s.length());
691 return ret.toString();
694 private static String join(String delimit, String[] stuff) {
695 StringBuffer ret = new StringBuffer();
696 for(int i=0; i<stuff.length; i++) {
697 ret.append(stuff[i]);
698 if (i<stuff.length - 1) ret.append(delimit);
700 return ret.toString();
705 // Main //////////////////////////////////////////////////////////////////////////////
707 /** simple listener for testing purposes */
708 public static void main(String[] args) throws Exception {
709 ServerSocket ss = new ServerSocket(143);
710 for(final Socket s = ss.accept();;)
711 new Thread() { public void run() { try {
712 final Mailbox root = FileBasedMailbox.getFileBasedMailbox(Mailbox.STORAGE_ROOT+File.separatorChar+"imap", true);
714 new API.Authenticator() {
715 public Mailbox authenticate(String u, String p) {
716 if (u.equals("megacz")&&p.equals("pass")) return root.slash("users",true).slash("megacz",true);
718 } } ).handleRequest();
719 } catch (Exception e) { e.printStackTrace(); } } }.start();