2 import org.ibex.crypto.*;
4 import org.ibex.util.*;
5 import org.ibex.mail.protocol.*;
10 // soft line limit (suggested): 78 chars / hard line limit: 998 chars
11 // folded headers: can insert CRLF anywhere that whitespace appears (before the whitespace)
12 // date/time parsing: see spec, 3.3
14 // FEATURE: MIME RFC2045, 2046, 2049
15 // FEATURE: PGP-signature-parsing
16 // FEATURE: mailing list header parsing
17 // FEATURE: delivery status notification (and the sneaky variety)
18 // FEATURE: threading as in http://www.jwz.org/doc/threading.html
20 public class Message extends JSReflection {
22 public final String allHeaders; // pristine headers
23 public final Hashtable headers; // hash of headers (not including resent's and traces)
24 public final String body; // entire body
26 public final Date date;
27 public final Address to;
28 public final Address from; // if multiple From entries, this is sender
29 public final Address replyto; // if none provided, this is equal to sender
30 public final String subject;
31 public final String messageid;
32 public final Address[] cc;
33 public final Address[] bcc;
34 public final Hashtable[] resent;
35 public final Trace[] traces;
37 public final Address envelopeFrom;
38 public final Address[] envelopeTo;
40 public final Date arrival; // when the message first arrived at this machine; IMAP "internal date message attr"
42 public void dump(OutputStream os) throws IOException {
43 Writer w = new OutputStreamWriter(os);
45 w.write("X-IbexMail-EnvelopeFrom: " + envelopeFrom + "\r\n");
46 w.write("X-IbexMail-EnvelopeTo: "); for(int i=0; i<envelopeTo.length; i++) w.write(envelopeTo[i] + " "); w.write("\r\n");
53 public static class StoredMessage extends Message {
56 public final int uidValidity; // must be reset if mailbox is deleted and then recreated
57 public final int sequenceNumber; // starts at 1; numbers reshuffled upon EXPUNGE
58 public Hash keywords = new Hash();
59 public boolean deleted = false;
60 public boolean seen = false;
61 public boolean flagged = false;
62 public boolean draft = false;
63 public boolean answered = false;
64 public boolean recent = false; // "Message is "recently" arrived in this mailbox. This
65 // session is the first session to have been notified
66 // about this message;
67 public StoredMessage(LineReader rs) throws IOException, MailException.Malformed { super(rs); }
72 final String returnPath;
73 final Element[] elements;
74 public Trace(LineReader lr) throws Trace.Malformed, IOException {
75 String retPath = lr.readLine();
76 if (!retPath.startsWith("Return-Path:")) throw new Trace.Malformed("trace did not start with Return-Path header");
77 returnPath = retPath.substring(12).trim();
80 String s = lr.readLine();
82 if (!s.startsWith("Received:")) { lr.pushback(s); break; }
83 s = s.substring(9).trim();
84 el.addElement(new Element(s));
86 elements = new Element[el.size()];
87 el.copyInto(elements);
89 public class Element {
95 public Element(String fromDomain, String fromIP, String toDomain, String forWhom, Date date) {
96 this.fromDomain=fromDomain; this.fromIP=fromIP; this.toDomain=toDomain; this.forWhom=forWhom; this.date=date; }
97 public Element(String s) throws Trace.Malformed {
98 StringTokenizer st = new StringTokenizer(s);
99 if (!st.nextToken().equals("FROM")) throw new Trace.Malformed("trace did note have a FROM element: " + s);
100 fromDomain = st.nextToken();
101 if (!st.nextToken().equals("BY")) throw new Trace.Malformed("trace did note have a BY element: " + s);
102 toDomain = st.nextToken();
103 // FIXME not done yet
106 public class Malformed extends Message.Malformed { public Malformed(String s) { super(s); } }
109 public static class Malformed extends MailException.Malformed { public Malformed(String s) { super(s); } }
110 public Message(Address envelopeFrom, Address[] envelopeTo, LineReader rs) throws IOException, MailException.Malformed {
111 this.envelopeFrom = envelopeFrom;
112 this.envelopeTo = envelopeTo;
113 this.arrival = new Date();
114 this.headers = new Hashtable();
116 StringBuffer all = new StringBuffer();
118 Address to = null, from = null, replyto = null;
119 String subject = null, messageid = null;
120 Vec cc = new Vec(), bcc = new Vec(), resent = new Vec(), traces = new Vec();
121 for(String s = rs.readLine(); s != null && !s.equals(""); s = rs.readLine()) {
124 if (s.length() == 0 || Character.isSpace(s.charAt(0))) {
125 if (key == null) throw new Malformed("Message began with a blank line; no headers");
126 headers.put(key, headers.get(key) + s);
129 if (s.indexOf(':') == -1) throw new Malformed("Header line does not contain colon: " + s);
130 key = s.substring(0, s.indexOf(':'));
131 for(int i=0; i<key.length(); i++)
132 if (key.charAt(i) < 33 || key.charAt(i) > 126)
133 throw new Malformed("Header key \""+key+"\" contains invalid character \"" + key.charAt(i) + "\"");
134 String val = s.substring(s.indexOf(':') + 1).trim();
135 while(Character.isSpace(val.charAt(0))) val = val.substring(1);
136 if (key.startsWith("Resent-")) {
137 if (key.startsWith("Resent-From")) resent.addElement(new Hashtable());
138 ((Hashtable)resent.lastElement()).put(key.substring(7), val);
139 } else if (key.startsWith("Return-Path:")) {
140 rs.pushback(s); traces.addElement(new Trace(rs));
142 // just append it to the previous one; valid for Comments/Keywords
143 if (headers.get(key) != null) val = headers.get(key) + " " + val;
144 headers.put(key, val);
148 this.date = (Date)headers.get("Date");
149 this.to = new Address((String)headers.get("To")); // FIXME what if null?
150 this.from = headers.get("From") == null ? envelopeFrom : new Address((String)headers.get("From"));
151 this.replyto = headers.get("Reply-To") == null ? null : new Address((String)headers.get("Reply-To"));
152 this.subject = (String)headers.get("Subject");
153 this.messageid = (String)headers.get("Message-Id");
154 if (headers.get("Cc") != null) {
155 StringTokenizer st = new StringTokenizer((String)headers.get("Cc"));
156 this.cc = new Address[st.countTokens()];
157 for(int i=0; i<this.cc.length; i++) this.cc[i] = new Address(st.nextToken());
159 this.cc = new Address[0];
161 if (headers.get("Bcc") != null) {
162 StringTokenizer st = new StringTokenizer((String)headers.get("Bcc"));
163 this.bcc = new Address[st.countTokens()];
164 for(int i=0; i<this.bcc.length; i++) this.bcc[i] = new Address(st.nextToken());
166 this.bcc = new Address[0];
168 resent.copyInto(this.resent = new Hashtable[resent.size()]);
169 traces.copyInto(this.traces = new Trace[traces.size()]);
170 allHeaders = all.toString();
171 StringBuffer body = new StringBuffer();
172 for(String s = rs.readLine();; s = rs.readLine()) { if (s == null) break; else body.append(s + "\r\n"); }
173 this.body = body.toString();
176 // http://www.jwz.org/doc/mid.html
177 private static final Random random = new Random();
178 public static String generateFreshMessageId() {
179 StringBuffer ret = new StringBuffer();
181 ret.append(Base36.encode(System.currentTimeMillis()));
183 ret.append(Base36.encode(random.nextLong()));
185 try { ret.append(InetAddress.getLocalHost().getHostName()); } catch (UnknownHostException e) { /* DELIBERATE */ }
187 return ret.toString();
190 public String summary() {
192 " Subject: " + subject + "\n" +
193 " EnvelopeFrom: " + envelopeFrom + "\n" +
194 " EnvelopeTo: " + envelopeTo + "\n" +
195 " MessageId: " + messageid;
198 public Message bounce(String reason) {
199 // use null-sender for error messages (don't send errors to the null addr)
201 throw new RuntimeException("bounce not implemented");