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: READ-WRITE / READ-ONLY status on SELECT
17 // FEATURE: pipelining
18 // FEATURE: support [charset]
20 // FEATURE: subscriptions
21 public class IMAP extends MessageProtocol {
23 // Constants //////////////////////////////////////////////////////////////////////////////
25 public static final char imapSeparator = '.';
26 public static final float version = (float)0.1;
29 // Callbacks //////////////////////////////////////////////////////////////////////////////
31 public static interface Authenticator { public abstract Mailbox authenticate(String user, String pass); }
34 // Exceptions //////////////////////////////////////////////////////////////////////////////
36 public static class Exn extends MailException { public Exn(String s) { super(s); } }
37 public static class Bad extends Exn { public Bad(String s) { super(s); } }
38 public static class No extends Exn { public No(String s) { super(s); } }
41 // Single Session Handler //////////////////////////////////////////////////////////////////////////////
43 private static class Session extends Incoming {
44 Mailbox selected = null;
45 Mailbox selected() { if (selected == null) throw new Bad("no mailbox selected"); return selected; }
46 String selectedName = null;
51 final Authenticator auth;
53 final PushbackReader r;
55 public void init() { }
56 public Session(Socket conn, Mailbox root, Authenticator auth) throws IOException {
57 this(conn, java.net.InetAddress.getLocalHost().getHostName(), root, auth); }
58 public Session(Socket conn, String vhost, Mailbox root, Authenticator auth) throws IOException {
59 this.vhost = vhost; this.conn = conn; this.root = root; this.auth = auth;
60 this.pw = new PrintWriter(new OutputStreamWriter(conn.getOutputStream()));
61 this.r = new PushbackReader(new InputStreamReader(this.is = conn.getInputStream()));
64 private void star(String s) { println("* " + s); }
65 private void println(String s) { pw.println(s); pw.flush(); }
66 private void print(String s) { pw.print(s); }
68 private Mailbox getMailbox(String name, boolean create) {
70 for(StringTokenizer st = new StringTokenizer(name, imapSeparator + ""); st.hasMoreTokens();)
71 if ((m = m.slash(st.nextToken(), create)) == null) throw new No("no such mailbox " + name);
75 // FIXME: not accurate when a wildcard and subsequent non-wildcards both match a single component
76 public HashSet lsub(String start, String ref, HashSet reply) { return list(start, ref, reply); }
77 public HashSet list(String start, String ref, HashSet reply) {
78 if (reply == null) reply = new HashSet();
79 if (ref.length() == 0 && start.length() == 0) { reply.add(""); return reply; }
80 while (start.endsWith(""+imapSeparator)) start = start.substring(0, start.length() - 1);
81 String[] children = (start.length() == 0 ? root : getMailbox(start, false)).children();
82 for(int i=0; i<children.length; i++) {
83 String s = children[i], pre = ref, kid = start + (start.length() > 0 ? imapSeparator+"" : "") + s;
85 if (pre.length() == 0) {
86 if (s.length() == 0) reply.add(kid);
87 } else switch(pre.charAt(0)) {
88 case imapSeparator: if (s.length() == 0) list(kid, pre.substring(1), reply); break;
89 case '%': reply.add(kid); pre=pre.substring(1); list(kid, pre, reply); break;
90 case '*': reply.add(kid); list(kid, pre, reply); pre = pre.substring(1); break;
91 default: if (s.length()==0) break;
92 if (s.charAt(0) != pre.charAt(0)) break;
93 s = s.substring(1); pre = pre.substring(1); continue;
101 public String[] capability() { return new String[] { "IMAP4rev1", "UNSELECT", "ID" }; }
102 public Hashtable id(Hashtable clientId) {
103 Hashtable response = new Hashtable();
104 response.put("name", IMAP.class.getName());
105 response.put("version", version + "");
106 response.put("os", System.getProperty("os.name", null));
107 response.put("os-version", System.getProperty("os.version", null));
108 response.put("vendor", "none");
109 response.put("support-url", "http://mail.ibex.org/");
113 public void copy(Query q, Mailbox to) { for(Mailbox.Iterator it=selected.iterator(q);it.next();) to.add(it.cur()); }
114 public void login(String u, String p) { if ((inbox = auth.authenticate(u,p)) == null) throw new No("Login failed."); }
115 public void logout() { }
116 public void unselect() { selected = null; selectedName = null; }
117 public void delete(Mailbox m) { if (!m.equals(inbox)) m.destroy(); }
118 public void create(String m) { if (!m.endsWith(""+imapSeparator) && !m.equalsIgnoreCase("inbox")) getMailbox(m, true); }
119 public void append(Mailbox m, int flags, Date arrival, String body) { m.add(new Message(null,null,body,arrival), flags); }
120 public void check() { }
121 public void noop() { }
122 public void close() { for(Mailbox.Iterator it=selected().iterator(Query.deleted()); it.next();) it.delete(); unselect(); }
123 public void expunge() { for(Mailbox.Iterator it = selected().iterator(Query.deleted()); it.next();) expunge(it); }
124 public void expunge(Mailbox.Iterator it) { star(it.uid() + " EXPUNGE"); it.delete(); }
125 public void subscribe(String mailbox) { }
126 public void unsubscribe(String mailbox) { }
127 public void rename(Mailbox from, String to) {
128 if (from.equals(inbox)) from.copy(Query.all(), getMailbox(to, true));
129 else if (to.equalsIgnoreCase("inbox")) { from.copy(Query.all(), getMailbox(to, true)); from.destroy(); }
130 else from.rename(to);
133 // FIXME lift out unparsing
134 public void status(Mailbox m, Token[] attrs) {
135 int seen = 0, recent = 0, messages = 0;
136 for(Mailbox.Iterator it = m.iterator(); it.next(); ) { if (!it.seen()) seen++; if (it.recent()) recent++; messages++; }
137 String response = "";
138 for(int i=0; i<attrs.length; i++) {
139 String s = attrs[i].atom();
140 if (s.equals("MESSAGES")) response += "MESSAGES " + messages;
141 if (s.equals("RECENT")) response += "RECENT " + seen;
142 if (s.equals("UIDNEXT")) response += "UNSEEN " + recent;
143 if (s.equals("UIDVALIDITY")) response += "UIDVALIDITY " + m.uidValidity();
144 if (s.equals("UNSEEN")) response += "UIDNEXT " + m.uidNext();
146 star("STATUS " + selectedName + " (" + response + ")");
149 // FIXME: we can omit UIDNEXT!
150 // FIXME use directory date/time as UIDNEXT and file date/time as UID; need to 'correct' file date/time after changes
151 public void select(String mailbox, boolean examineOnly) {
152 selected = getMailbox(selectedName = mailbox, false);
153 star("FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)");
154 star(selected.count(Query.all()) + " EXISTS");
155 star(selected.count(Query.recent()) + " RECENT");
156 star("OK [UIDVALIDITY " + selected.uidValidity() + "] UIDs valid");
160 public void fetch(Query q, FetchRequest[] fr, boolean uid) {
161 for(Mailbox.Iterator it = selected.iterator(q); it.next(); ) {
162 Message m = it.cur();
163 StringBuffer reply = new StringBuffer();
164 boolean peek = false;
165 for(int i=0; i<fr.length; i++)
166 if (fr[i] == null) continue;
167 else if (fr[i] == BODYSTRUCTURE) throw new Bad("BODYSTRUCTURE not supported");
168 else if (fr[i] == ENVELOPE ) reply.append("ENVELOPE " + envelope(m) + " ");
169 else if (fr[i] == FLAGS ) reply.append("FLAGS (" + flags(it) + ") ");
170 else if (fr[i] == INTERNALDATE ) reply.append("INTERNALDATE " + quotify(m.arrival) + " ");
171 else if (fr[i] == UID ) reply.append("UID " + it.uid() + " ");
172 else if (fr[i] == RFC822 ) { reply.append("RFC822 "); reply.append(qq(m.body)); }
173 else if (fr[i] == RFC822HEADER ) { reply.append("RFC822.HEADER ");reply.append(qq(m.allHeaders));}
174 else if (fr[i] == RFC822SIZE ) reply.append("RFC822.SIZE " + m.rfc822size() + " ");
175 else if (fr[i] == RFC822TEXT ) { }
176 else if (fr[i] instanceof FetchRequestBody) {
177 FetchRequestBody frb = (FetchRequestBody)fr[i];
178 StringBuffer payload = new StringBuffer();
180 // FIXME obey path[] here
182 case FetchRequestBody.PATH:
183 reply.append("BODY[] "); payload.append(m.body); break;
184 case FetchRequestBody.TEXT:
185 reply.append("BODY[TEXT] "); payload.append(m.body); break;
186 case FetchRequestBody.MIME: throw new Bad("FETCH MIME not supported");
187 case FetchRequestBody.HEADER: reply.append("BODY[HEADER] "); payload.append(m.allHeaders); break;
188 case FetchRequestBody.FIELDS:
189 reply.append("BODY[HEADER.FIELDS (");
190 for(int j=0; j<frb.headers.length; j++) {
191 reply.append(frb.headers[j].s + " ");
192 payload.append(frb.headers[j].s + ": " + m.headers.get(frb.headers[j].s) + "\r\n");
196 case FetchRequestBody.FIELDS_NOT: throw new Bad("FETCH HEADERS.NOT not supported");
198 if (frb.start == -1) reply.append(qq(payload.toString()));
199 else if (frb.start == -1) reply.append("<" + frb.end + ">" + qq(payload.substring(0, frb.end + 1)));
200 else reply.append("<" + frb.start + "." + frb.end + ">" + qq(payload.substring(frb.start, frb.end + 1)));
201 } else throw new Error("this should never happen");
202 star((uid ? it.uid() : it.num()) + " FETCH (" + reply.toString() + (uid ? " UID " + it.uid() : "") + ")");
203 if (!peek) it.seen(true);
207 public void store(Query q, int addFlags, int removeFlags, boolean silent, boolean uid) {
208 for(Mailbox.Iterator it = selected.iterator(q); it.next(); ) {
209 //it.addFlags(addFlags); FIXME
210 //it.removeFlags(removeFlags);
211 if (!silent) star((uid ? it.uid() : it.num()) + " FETCH (FLAGS (" + flags(it) + "))");
215 private void emitListResponse(HashSet boxes)
216 { for(Iterator it = boxes.iterator(); it.hasNext(); ) star("LIST \"" + imapSeparator + "\" \"" + it.next() + "\""); }
218 public boolean handleRequest() throws IOException {
219 println("* OK " + vhost + " " + IMAP.class.getName() + " IMAP4rev1 [RFC3501] v" + version + " server ready");
220 for(String tag = null;; newline()) try {
223 tag = null; tag = token().atom();
224 String command = token().atom();
225 if (command.equals("UID")) { uid = true; command = token().atom(); }
226 switch(((Integer)commands.get(command.toUpperCase())).intValue()) {
227 case AUTHENTICATE: login(token().astring(), token().astring()); break;
228 case LIST: emitListResponse(list(token().q(), token().q(), null)); break;
229 case LSUB: emitListResponse(lsub(token().q(), token().q(), null)); break;
230 case SUBSCRIBE: subscribe(token().atom()); break;
231 case UNSUBSCRIBE: unsubscribe(token().atom()); break;
232 case CAPABILITY: star("CAPABILITY " + join(" ", capability())); break;
233 //case ID: id(); break;
234 case LOGIN: login(token().astring(), token().astring()); break;
235 case LOGOUT: logout(); star("BYE"); conn.close(); return false;
236 case RENAME: rename(token().mailbox(), token().atom()); break;
237 case EXAMINE: select(token().astring(), true); break;
238 case SELECT: select(token().astring(), false); break;
239 case COPY: copy(uid ? Query.uid(token().set()) : Query.num(token().set()), token().mailbox()); break;
240 case DELETE: delete(token().mailbox()); break;
241 case CHECK: check(); break;
242 case NOOP: noop(); break;
243 case CLOSE: close(); break;
244 case EXPUNGE: expunge(); break;
245 case UNSELECT: unselect(); break;
246 case CREATE: create(token().astring()); break;
247 case STATUS: status(token().mailbox(), token().l()); break;
248 case FETCH: fetch(uid?Query.uid(token().set()):Query.num(token().set()),parseFetch(token().l()),uid);
251 Mailbox m = token().mailbox();
255 if (t.type == t.LIST) { flags = t.flags(); t = token(); }
256 if (t.type == t.QUOTED) { arrival = t.datetime(); t = token(); }
257 append(m, flags, arrival, token().q());
260 Query q = uid ? Query.uid(token().set()) : Query.num(token().set());
261 String s = token().atom();
262 int flags = token().flags();
263 if (s.equals("FLAGS")) store(q, flags, ~flags, false, uid);
264 else if (s.equals("+FLAGS")) store(q, flags, 0, false, uid);
265 else if (s.equals("-FLAGS")) store(q, 0, flags, false, uid);
266 else if (s.equals("FLAGS.SILENT")) store(q, flags, ~flags, true, uid);
267 else if (s.equals("+FLAGS.SILENT")) store(q, flags, 0, true, uid);
268 else if (s.equals("-FLAGS.SILENT")) store(q, 0, flags, true, uid);
269 else throw new Bad("unknown STORE specifier " + s);
271 default: throw new Bad("unrecognized command \"" + command + "\"");
273 println(tag + " OK " + command + " Completed.");
274 } catch (Bad b) { println(tag==null ? "* BAD Invalid tag" : (tag + " Bad " + b.toString())); b.printStackTrace();
275 } catch (No n) { println(tag==null ? "* BAD Invalid tag" : (tag + " No " + n.toString())); n.printStackTrace(); }
284 if (t.type == t.LIST) throw new No("nested queries not yet supported");
285 else if (t.type == t.SET) return Query.num(t.set());
287 if (s.equals("NOT")) { not = true; continue; }
288 if (s.equals("OR")) return Query.or(query(), query());
289 if (s.equals("AND")) return Query.and(query(), query());
292 if (s.startsWith("UN")) { not = true; s = s.substring(2); }
293 if (s.equals("ANSWERED")) q = Query.answered();
294 else if (s.equals("DELETED")) q = Query.deleted();
295 else if (s.equals("DRAFT")) q = Query.draft();
296 else if (s.equals("FLAGGED")) q = Query.flagged();
297 else if (s.equals("RECENT")) q = Query.recent();
298 else if (s.equals("SEEN")) q = Query.seen();
299 else if (s.equals("OLD")) { not = true; q = Query.recent(); }
300 else if (s.equals("NEW")) q = Query.and(Query.recent(), Query.not(Query.seen()));
301 else if (s.equals("KEYWORD")) q = Query.header("keyword", token().flag());
302 else if (s.equals("HEADER")) q = Query.header(token().astring(), token().astring());
303 else if (s.equals("BCC")) q = Query.header("bcc", token().astring());
304 else if (s.equals("CC")) q = Query.header("cc", token().astring());
305 else if (s.equals("FROM")) q = Query.header("from", token().astring());
306 else if (s.equals("TO")) q = Query.header("to", token().astring());
307 else if (s.equals("SUBJECT")) q = Query.header("subject", token().astring());
308 else if (s.equals("LARGER")) q = Query.size(token().n(), Integer.MAX_VALUE);
309 else if (s.equals("SMALLER")) q = Query.size(Integer.MIN_VALUE, token().n());
310 else if (s.equals("BODY")) q = Query.body(token().astring());
311 else if (s.equals("TEXT")) q = Query.full(token().astring());
312 else if (s.equals("BEFORE")) q = Query.arrival(new Date(0), token().date());
313 else if (s.equals("SINCE")) q = Query.arrival(token().date(), new Date(Long.MAX_VALUE));
314 else if (s.equals("ON")) { Date d = token().date(); q = Query.arrival(d, new Date(d.getTime() + 24 * 60 * 60)); }
315 else if (s.equals("SENTBEFORE")) q = Query.sent(new Date(0), token().date());
316 else if (s.equals("SENTSINCE")) q = Query.sent(token().date(), new Date(Long.MAX_VALUE));
317 else if (s.equals("SENTON")) { Date d = token().date(); q = Query.sent(d, new Date(d.getTime() + 24 * 60 * 60)); }
318 else if (s.equals("UID")) q = Query.uid(token().set());
324 public final String s;
325 public final Token[] l;
327 private static final byte NIL = 0;
328 private static final byte LIST = 1;
329 private static final byte QUOTED = 2;
330 private static final byte NUMBER = 3;
331 private static final byte ATOM = 4;
332 private static final byte BAREWORD = 5;
333 private static final byte SET = 6;
334 public Token() { n = 0; l = null; s = null; type = NIL; }
335 public Token(String s, boolean quoted) { this.s = s; l = null; type = quoted ? QUOTED : ATOM; n = 0; }
336 public Token(Token[] list) { l = list; s = null; type = LIST; n = 0; }
337 public Token(int number) { n = number; l = null; s = null; type = NUMBER; }
339 public String flag() { if (type != ATOM) throw new Bad("expected a flag"); return s; }
340 public int n() { if (type != NUMBER) throw new Bad("expected number"); return n; }
341 public int nz() { int n = n(); if (n == 0) throw new Bad("expected nonzero number"); return n; }
342 public String q() { if (type == NIL) return null; if (type != QUOTED) throw new Bad("expected qstring"); return s; }
343 public Token[] l() { if (type == NIL) return null; if (type != LIST) throw new Bad("expected list"); return l; }
346 if (type != LIST) throw new Bad("expected flag list");
348 for(int i=0; i<l.length; i++) {
349 String flag = l[i].s;
350 if (flag.equals("\\Deleted")) ret |= Mailbox.Flag.DELETED;
351 else if (flag.equals("\\Seen")) ret |= Mailbox.Flag.SEEN;
352 else if (flag.equals("\\Flagged")) ret |= Mailbox.Flag.FLAGGED;
353 else if (flag.equals("\\Draft")) ret |= Mailbox.Flag.DRAFT;
354 else if (flag.equals("\\Answered")) ret |= Mailbox.Flag.ANSWERED;
355 else if (flag.equals("\\Recent")) ret |= Mailbox.Flag.RECENT;
360 if (type != ATOM) throw new Bad("expected a messageid set");
362 StringTokenizer st = new StringTokenizer(s, ",");
363 while(st.hasMoreTokens()) {
364 String s = st.nextToken();
365 if (s.indexOf(':') != -1) {
366 int start = Integer.parseInt(s.substring(0, s.indexOf(':')));
367 String end_s = s.substring(s.indexOf(':')+1);
368 if (end_s.equals("*")) {
369 ids.addElement(new Integer(start));
370 ids.addElement(new Integer(Integer.MAX_VALUE));
372 int end = Integer.parseInt(end_s);
373 for(int j=start; j<=end; j++) ids.addElement(new Integer(j));
376 ids.addElement(new Integer(Integer.parseInt(s)));
377 ids.addElement(new Integer(Integer.parseInt(s)));
380 int[] ret = new int[ids.size()];
381 for(int i=0; i<ret.length; i++) ret[i] = ((Integer)ids.elementAt(i)).intValue();
385 if (type != QUOTED && type != ATOM) throw new Bad("Expected quoted or unquoted date");
386 try { return new SimpleDateFormat("dd-MMM-yyyy").parse(s);
387 } catch (ParseException p) { throw new Bad("invalid date format; " + p); }
389 public Date datetime() {
390 if (type != QUOTED && type != ATOM) throw new Bad("Expected quoted or unquoted datetime");
391 try { return new SimpleDateFormat("dd-MM-yyyy hh:mm:ss").parse(s.trim());
392 } catch (ParseException p) { throw new Bad("invalid datetime format " + s + " : " + p); }
394 public String nstring() {
395 if (type == NIL) return null;
396 if (type == QUOTED) return s;
397 throw new Bad("expected NIL or string");
399 public String astring() {
400 if (type == ATOM) return s;
401 if (type == QUOTED) return s;
402 throw new Bad("expected atom or string");
404 public String atom() {
405 if (type != ATOM) throw new Bad("expected atom");
406 for(int i=0; i<s.length(); i++) {
407 char c = s.charAt(i);
408 if (c == '(' || c == ')' || c == '{' || c == ' ' || c == '%' || c == '*')
409 throw new Bad("invalid char in atom: " + c);
413 public Mailbox mailbox() {
414 if (type == BAREWORD && s.toLowerCase().equals("inbox")) return getMailbox("INBOX", false);
415 return getMailbox(astring(), false);
420 public char getc() throws IOException {
422 if (ret == -1) throw new EOFException();
423 System.err.print((char)ret);
427 public char peekc() throws IOException {
429 if (ret == -1) throw new EOFException();
433 public void fill(byte[] b) throws IOException {
435 while (num < b.length) {
436 int numread = is.read(b, num, b.length - num);
437 if (numread == -1) throw new EOFException();
442 public void newline() {
444 for(char c = peekc(); c == ' ';) { getc(); c = peekc(); };
445 for(char c = peekc(); c == '\r' || c == '\n';) { getc(); c = peekc(); };
446 } catch (IOException e) {
451 public Token token() {
453 Vec toks = new Vec();
454 StringBuffer sb = new StringBuffer();
455 char c = getc(); while (c == ' ') c = getc();
456 if (c == '\r' || c == '\n') {
457 throw new Bad("unexpected end of line");
459 while(peekc() != '}') sb.append(getc());
460 int octets = Integer.parseInt(sb.toString());
461 while(peekc() == ' ') getc(); // whitespace
462 while (getc() != '\n' && getc() != '\r') { }
463 byte[] bytes = new byte[octets];
465 return new Token(new String(bytes), true);
466 } else if (c == '\"') {
469 if (c == '\\') sb.append(getc());
470 else if (c == '\"') break;
473 return new Token(sb.toString(), true);
475 // NOTE: this is technically a violation of the IMAP grammar, since atoms like FOO[BAR should be legal
476 } else if (c == ']' || c == ')') { return null;
477 } else if (c == '[' || c == '(') {
479 do { t = token(); if (t != null) toks.addElement(t); } while (t != null);
480 Token[] ret = new Token[toks.size()];
482 return new Token(ret); // FIXME
487 if (c == ' ' || c == '\"' || c == '(' || c == ')' || c == '[' || c == ']' ||
488 c == '{' || c == '\n' || c == '\r')
489 return new Token(sb.toString(), false);
492 } catch (IOException e) {
498 public final FetchRequest BODYSTRUCTURE = new FetchRequest();
499 public final FetchRequest ENVELOPE = new FetchRequest();
500 public final FetchRequest FLAGS = new FetchRequest();
501 public final FetchRequest INTERNALDATE = new FetchRequest();
502 public final FetchRequest RFC822 = new FetchRequest();
503 public final FetchRequest RFC822HEADER = new FetchRequest();
504 public final FetchRequest RFC822SIZE = new FetchRequest();
505 public final FetchRequest RFC822TEXT = new FetchRequest();
506 public final FetchRequest UID = new FetchRequest();
507 public final FetchRequest BODY = new FetchRequest();
508 public final FetchRequest BODYPEEK = new FetchRequest();
509 public class FetchRequest { }
510 public class FetchRequestBody extends FetchRequest {
512 boolean peek = false;
516 Token[] headers = null;
517 public static final int PATH = 0;
518 public static final int TEXT = 1;
519 public static final int MIME = 2;
520 public static final int HEADER = 3;
521 public static final int FIELDS = 4;
522 public static final int FIELDS_NOT= 5;
525 public FetchRequest[] parseFetch(Token[] t) {
526 FetchRequest[] ret = new FetchRequest[t.length];
527 for(int i=0; i<t.length; i++) {
528 if (t[i] == null) continue;
529 if (t[i].s.equalsIgnoreCase("BODYSTRUCTURE")) ret[i] = BODYSTRUCTURE;
530 else if (t[i].s.equalsIgnoreCase("ENVELOPE")) ret[i] = ENVELOPE;
531 else if (t[i].s.equalsIgnoreCase("FLAGS")) ret[i] = FLAGS;
532 else if (t[i].s.equalsIgnoreCase("INTERNALDATE")) ret[i] = INTERNALDATE;
533 else if (t[i].s.equalsIgnoreCase("RFC822")) ret[i] = RFC822;
534 else if (t[i].s.equalsIgnoreCase("RFC822.HEADER")) ret[i] = RFC822HEADER;
535 else if (t[i].s.equalsIgnoreCase("RFC822.SIZE")) ret[i] = RFC822SIZE;
536 else if (t[i].s.equalsIgnoreCase("RFC822.TEXT")) ret[i] = RFC822TEXT;
537 else if (t[i].s.equalsIgnoreCase("UID")) ret[i] = UID;
539 FetchRequestBody b = new FetchRequestBody();
540 String s = t[i].s.toUpperCase();
542 String startend = null;
543 if (s.indexOf('<') != -1 && s.endsWith(">")) {
544 startend = s.substring(s.indexOf('<'), s.indexOf('>'));
545 s = s.substring(0, s.indexOf('<'));
548 if (s.equalsIgnoreCase("BODY.PEEK")) b.peek = true;
549 else if (s.equalsIgnoreCase("BODY")) b.peek = false;
550 else throw new No("unknown fetch argument: " + s);
552 if (i<t.length - 1 && (t[i+1].type == t[i].LIST)) {
554 Token[] t2 = t[i].l();
555 if (t2.length == 0) {
558 String s2 = t2[0].s.toUpperCase();
559 Vec mimeVec = new Vec();
560 while(s2.charAt(0) >= '0' && s2.charAt(0) <= '9') {
561 mimeVec.addElement(new Integer(Integer.parseInt(s2.substring(0, s2.indexOf('.')))));
562 s2 = s2.substring(s2.indexOf('.') + 1);
564 if (mimeVec.size() > 0) {
565 b.path = new int[mimeVec.size()];
566 for(int j=0; j<b.path.length; j++) b.path[j] = ((Integer)mimeVec.elementAt(j)).intValue();
568 if (s2.equals("")) { b.type = b.PATH; }
569 else if (s2.equals("HEADER")) { b.type = b.HEADER; }
570 else if (s2.equals("HEADER.FIELDS")) { b.type = b.FIELDS; b.headers = t2[1].l(); }
571 else if (s2.equals("HEADER.FIELDS.NOT")) { b.type = b.FIELDS_NOT; b.headers = t2[1].l(); }
572 else if (s2.equals("MIME")) { b.type = b.MIME; }
573 else if (s2.equals("TEXT")) { b.type = b.TEXT; }
577 if (i<t.length - 1 && (t[i+1].s.startsWith("<"))) {
579 startend = t[i].s.substring(1, t[i].s.length() - 1);
582 if (startend != null) {
583 if (startend.indexOf('.') == -1) {
584 b.start = Integer.parseInt(startend);
587 b.start = Integer.parseInt(startend.substring(0, startend.indexOf('.')));
588 b.end = Integer.parseInt(startend.substring(startend.indexOf('.') + 1));
600 // Unparsing (printing) logic //////////////////////////////////////////////////////////////////////////////
602 static String quotify(String s){return s==null?"NIL":"\""+s.replaceAll("\\\\","\\\\").replaceAll("\"","\\\\\"")+"\"";}
603 static String quotify(Date d) { return new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss +zzzz").format(d); }
604 static String address(Address a) {return"("+quotify(a.description)+" NIL "+quotify(a.user)+" "+quotify(a.host)+")"; }
605 public static String addressList(Object a) {
606 if (a == null) return "NIL";
607 if (a instanceof Address) return "("+address((Address)a)+")";
608 Address[] aa = (Address[])a;
609 StringBuffer ret = new StringBuffer();
611 for(int i=0; i<aa.length; i++) { ret.append(aa[i]); if (i < aa.length - 1) ret.append(" "); }
613 return ret.toString();
615 static String flags(Mailbox.Iterator it) {
617 (it.deleted() ? "\\Deleted " : "") +
618 (it.seen() ? "\\Seen " : "") +
619 (it.flagged() ? "\\Flagged " : "") +
620 (it.draft() ? "\\Draft " : "") +
621 (it.answered() ? "\\Answered " : "") +
622 (it.recent() ? "\\Recent " : "");
624 static String envelope(Message m) {
626 "(" + quotify(m.arrival.toString()) +
627 " " + quotify(m.subject) +
628 " " + addressList(m.from) +
629 " " + addressList(m.headers.get("sender")) +
630 " " + addressList(m.replyto) +
631 " " + addressList(m.to) +
632 " " + addressList(m.cc) +
633 " " + addressList(m.bcc) +
634 " " + quotify((String)m.headers.get("in-reply-to")) +
635 " " + quotify(m.messageid) +
639 public static String qq(String s) {
640 StringBuffer ret = new StringBuffer(s.length() + 20);
642 ret.append(s.length());
649 return ret.toString();
652 private static String join(String delimit, String[] stuff) {
653 StringBuffer ret = new StringBuffer();
654 for(int i=0; i<stuff.length; i++) {
655 ret.append(stuff[i]);
656 if (i<stuff.length - 1) ret.append(delimit);
658 return ret.toString();
662 // Command Switchblock //////////////////////////////////////////////////////////////////////////////
664 private static final Hashtable commands = new Hashtable();
665 private static final int UID = 0; static { commands.put("UID", new Integer(UID)); }
666 private static final int AUTHENTICATE = 1; static { commands.put("AUTHENTICATE", new Integer(AUTHENTICATE)); }
667 private static final int LIST = 2; static { commands.put("LIST", new Integer(LIST)); }
668 private static final int LSUB = 3; static { commands.put("LSUB", new Integer(LSUB)); }
669 private static final int SUBSCRIBE = 4; static { commands.put("SUBSCRIBE", new Integer(SUBSCRIBE)); }
670 private static final int UNSUBSCRIBE = 5; static { commands.put("UNSUBSCRIBE", new Integer(UNSUBSCRIBE)); }
671 private static final int CAPABILITY = 6; static { commands.put("CAPABILITY", new Integer(CAPABILITY)); }
672 private static final int ID = 7; static { commands.put("ID", new Integer(ID)); }
673 private static final int LOGIN = 8; static { commands.put("LOGIN", new Integer(LOGIN)); }
674 private static final int LOGOUT = 9; static { commands.put("LOGOUT", new Integer(LOGOUT)); }
675 private static final int RENAME = 10; static { commands.put("RENAME", new Integer(RENAME)); }
676 private static final int EXAMINE = 11; static { commands.put("EXAMINE", new Integer(EXAMINE)); }
677 private static final int SELECT = 12; static { commands.put("SELECT", new Integer(SELECT)); }
678 private static final int COPY = 13; static { commands.put("COPY", new Integer(COPY)); }
679 private static final int DELETE = 14; static { commands.put("DELETE", new Integer(DELETE)); }
680 private static final int CHECK = 15; static { commands.put("CHECK", new Integer(CHECK)); }
681 private static final int NOOP = 16; static { commands.put("NOOP", new Integer(NOOP)); }
682 private static final int CLOSE = 17; static { commands.put("CLOSE", new Integer(CLOSE)); }
683 private static final int EXPUNGE = 18; static { commands.put("EXPUNGE", new Integer(EXPUNGE)); }
684 private static final int UNSELECT = 19; static { commands.put("UNSELECT", new Integer(UNSELECT)); }
685 private static final int CREATE = 20; static { commands.put("CREATE", new Integer(CREATE)); }
686 private static final int STATUS = 21; static { commands.put("STATUS", new Integer(STATUS)); }
687 private static final int FETCH = 22; static { commands.put("FETCH", new Integer(FETCH)); }
688 private static final int APPEND = 23; static { commands.put("APPEND", new Integer(APPEND)); }
689 private static final int STORE = 24; static { commands.put("STORE", new Integer(STORE)); }
692 // Main //////////////////////////////////////////////////////////////////////////////
694 /** simple listener for testing purposes */
695 public static void main(String[] args) throws Exception {
696 ServerSocket ss = new ServerSocket(143);
697 for(final Socket s = ss.accept();;)
698 new Thread() { public void run() { try {
699 final Mailbox root = FileBasedMailbox.getFileBasedMailbox(Mailbox.STORAGE_ROOT+File.separatorChar+"imap", true);
701 new Authenticator() {
702 public Mailbox authenticate(String u, String p) {
703 if (u.equals("megacz")&&p.equals("pass")) return root.slash("users",true).slash("megacz",true);
705 } } ).handleRequest();
706 } catch (Exception e) { e.printStackTrace(); } } }.start();