1 package org.ibex.mail.target;
2 import org.ibex.mail.*;
3 import org.ibex.util.*;
10 // FIXME: we can omit UIDNEXT!
11 // FIXME use directory date/time as UIDNEXT and file date/time as UID; need to 'correct' file date/time after changes
13 /** An exceptionally crude implementation of Mailbox relying on POSIXy filesystem semantics */
14 public class FileBasedMailbox extends Mailbox.Default {
16 public String toString() { return "[FileBasedMailbox " + path + "]"; }
18 private static final char slash = File.separatorChar;
19 private static final Hashtable instances = new Hashtable();
20 public static FileBasedMailbox getFileBasedMailbox(String path, boolean create) {
21 FileBasedMailbox ret = (FileBasedMailbox)instances.get(path);
22 if (ret != null) return ret;
23 File f = new File(path);
24 if (!create && !f.exists()) return null;
25 instances.put(path, ret = new FileBasedMailbox(path));
29 public static final FilenameFilter filter = new FilenameFilter() {
30 public boolean accept(File f, String s) {
31 return s.indexOf('.') != -1;
35 // Instance //////////////////////////////////////////////////////////////////////////////
39 private FileBasedMailbox(String path) throws MailException {
40 new File(this.path = path).mkdirs();
44 public Mailbox slash(String name, boolean create) {
45 return FileBasedMailbox.getFileBasedMailbox(path + slash + name, create); }
47 public String[] children() {
49 String[] list = new File(path).list();
50 for(int i=0; i<list.length; i++) {
51 if (!(new File(path + slash + list[i]).isDirectory())) continue;
52 vec.addElement(list[i]);
54 String[] ret = new String[vec.size()];
59 public Mailbox.Iterator iterator() { return new FileBasedMailbox.Iterator(); }
60 public int uidValidity() { return (int)(new File(path).lastModified() & 0xffffffL); }
62 public int uidNext() { return uidNext(false); }
63 public int uidNext(boolean inc) {
65 uidNext = new File(path + slash + "UIDNEXT");
66 if (!uidNext.exists()) {
67 File tmp = new File(uidNext + "-");
68 PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tmp)));
72 tmp.renameTo(uidNext);
75 BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(uidNext)));
76 int ret = Integer.parseInt(br.readLine());
79 File tmp = new File(uidNext + "-");
80 PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tmp)));
84 tmp.renameTo(uidNext);
87 } catch (IOException e) { throw new MailException.IOException(e); }
90 public synchronized void add(Message message) { add(message, Mailbox.Flag.RECENT); }
91 public synchronized void add(Message message, int flags) {
92 Log.info(this, "adding message to ["+toString()+"]:\n" + message.summary());
94 int num = new File(path).list(filter).length;
95 String name = path + slash + uidNext(true) + "." +
96 ((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED ? "x" : "") +
97 ((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT ? "d" : "") +
98 ((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT ? "r" : "") +
99 ((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED ? "a" : "") +
100 ((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED ? "f" : "") +
101 ((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN ? "s" : "");
102 Log.info(this, " with chosen filename " + name);
103 File target = new File(name);
104 File f = new File(target.getCanonicalPath() + "-");
105 FileOutputStream fo = new FileOutputStream(f);
106 Stream stream = new Stream(fo);
107 stream.println("X-org.ibex.mail.headers.envelope.From: " + message.envelope.from);
108 stream.println("X-org.ibex.mail.headers.envelope.To: " + message.envelope.to);
109 message.dump(stream);
112 Log.info(this, " done writing.");
113 } catch (IOException e) { throw new MailException.IOException(e); }
116 private class Iterator extends Mailbox.Default.Iterator {
118 private String[] names;
119 private boolean seen = false, deleted = false, draft = false, flagged = false, answered = false, recent = false;
120 public Iterator() { names = new File(path).list(filter); }
122 public Message head() { return cur(); }
123 public Message cur() {
124 if (cur >= names.length) return null;
126 File file = new File(path + File.separatorChar + names[cur]);
127 FileInputStream fis = new FileInputStream(file);
128 Stream stream = new Stream(fis);
129 Address envelopeFrom = null;
130 Address envelopeTo = null;
131 for(String s = stream.readln(); s != null; s = stream.readln()) {
132 if (s.startsWith("X-org.ibex.mail.headers.envelope.From: "))
133 envelopeFrom = Address.parse(s.substring(38).trim());
134 else if (s.startsWith("X-org.ibex.mail.headers.envelope.To: "))
135 envelopeTo = Address.parse(s.substring(36).trim());
137 stream.unread(s + "\r\n");
141 Message ret = new Message(stream,
142 new Message.Envelope(envelopeFrom, envelopeTo, new Date(file.lastModified())));
145 } catch (IOException e) { throw new MailException.IOException(e);
146 } catch (Message.Malformed e) { throw new MailException(e.getMessage()); }
148 public boolean next() {
150 if (cur >= names.length) return false;
151 String name = names[cur].substring(names[cur].indexOf('.') + 1);
152 if (!(new File(path + File.separatorChar + names[cur])).exists()) return next();
153 seen = name.indexOf('s') != -1;
154 deleted = name.indexOf('x') != -1;
155 flagged = name.indexOf('f') != -1;
156 draft = name.indexOf('d') != -1;
157 answered = name.indexOf('a') != -1;
158 recent = name.indexOf('r') != -1;
161 public int num() { return cur; }
163 try { return Integer.parseInt(names[cur].substring(0, names[cur].indexOf('.')));
164 } catch (NumberFormatException nfe) {
165 Log.warn(FileBasedMailbox.class, "NumberFormatException: " + names[cur].substring(0, names[cur].length() - 1));
168 private void fixflags() {
170 names[cur].substring(0, names[cur].indexOf('.') + 1) +
172 (deleted ? "x" : "") +
173 (flagged ? "f" : "") +
175 (recent ? "r" : "") +
176 (answered ? "a" : "");
177 new File(path + File.separatorChar + names[cur]).renameTo(new File(path + File.separatorChar + newName));
178 names[cur] = newName;
181 public void delete() {
182 new File(path + File.separatorChar + names[cur]).delete();
183 // FIXME remove from list?
185 public void set(String key, String val) { throw new MailException("not supported"); }
186 public String get(String key) { throw new MailException("not supported"); }
188 public boolean seen() { return seen; }
189 public boolean deleted() { return deleted; }
190 public boolean flagged() { return flagged; }
191 public boolean draft() { return draft; }
192 public boolean answered() { return answered; }
193 public boolean recent() { return recent; }
194 public void seen(boolean on) { seen = on; fixflags(); }
195 public void deleted(boolean on) { deleted = on; fixflags(); }
196 public void flagged(boolean on) { flagged = on; fixflags(); }
197 public void draft(boolean on) { draft = on; fixflags(); }
198 public void answered(boolean on) { answered = on; fixflags(); }
199 public void recent(boolean on) { recent = on; fixflags(); }