2 import org.ibex.crypto.*;
3 import org.ibex.util.*;
4 import org.ibex.mail.protocol.*;
10 // FIXME this is important: folded headers: can insert CRLF anywhere that whitespace appears (before the whitespace)
12 // soft line limit (suggested): 78 chars / hard line limit: 998 chars
13 // date/time parsing: see spec, 3.3
15 // FIXME: messages must NEVER contain 8-bit binary data; this is a violation of IMAP
17 // FEATURE: PGP-signature-parsing
18 // FEATURE: mailing list header parsing
19 // FEATURE: delivery status notification (and the sneaky variety)
20 // FEATURE: threading as in http://www.jwz.org/doc/threading.html
22 // FIXME RFC822 1,000-char limit per line
25 * [immutable] This class encapsulates a message "floating in the
26 * ether": RFC2822 data but no storage-specific flags or other
29 public class Message extends MIME.Part {
31 // Envelope //////////////////////////////////////////////////////////////////////////////
33 public final Envelope envelope;
34 public static class Envelope extends org.ibex.js.JSReflection {
35 public Envelope(Address from, Address to, Date arrival) { this.to = to; this.from = from; this.arrival = arrival; }
36 public final Date arrival;
37 public final Address to;
38 public final Address from;
39 public static Envelope augment(Envelope e, MIME.Headers h) {
40 if (e.from != null && e.to != null) return e;
41 Address to = e.to == null ? Address.parse(h.gets("X-org.ibex.mail.headers.envelope.To")) : e.to;
42 Address from = e.from == null ? Address.parse(h.gets("X-org.ibex.mail.headers.envelope.From")) : e.from;
43 return new Envelope(from, to, e.arrival);
48 // Parsed Headers //////////////////////////////////////////////////////////////////////////////
50 public final Address to;
51 public final Address from; // if multiple From entries, this is sender
52 public final Date date;
53 public final Address replyto; // if none provided, this is equal to sender
54 public final String subject;
55 public final String messageid;
56 public final Address[] cc;
57 public final Address[] bcc;
58 public final Hashtable[] resent;
60 public Message(Stream stream, Envelope envelope) throws Malformed {
61 super(stream, null, false);
62 Vec resent = new Vec(), traces = new Vec();
63 this.envelope = Envelope.augment(envelope, headers);
64 this.to = headers.gets("To") == null ? envelope.to : Address.parse(headers.gets("To"));
65 this.from = headers.gets("From") == null ? envelope.from : Address.parse(headers.gets("From"));
66 this.replyto = headers.gets("Reply-To") == null ? null : Address.parse(headers.gets("Reply-To"));
67 this.subject = headers.gets("Subject");
68 this.messageid = headers.gets("Message-Id");
69 this.cc = Address.list(headers.gets("Cc"));
70 this.bcc = Address.list(headers.gets("BCc"));
71 this.date = parseDate(headers.gets("Date"));
72 resent.copyInto(this.resent = new Hashtable[resent.size()]);
73 traces.copyInto(this.traces = new Trace[traces.size()]);
77 // Helpers /////////////////////////////////////////////////////////////////////////////
79 // http://www.jwz.org/doc/mid.html
80 private static final Random random = new Random();
81 public static String generateFreshMessageId() {
82 StringBuffer ret = new StringBuffer();
84 ret.append(Base36.encode(System.currentTimeMillis()));
86 ret.append(Base36.encode(random.nextLong()));
88 try { ret.append(InetAddress.getLocalHost().getHostName()); } catch (UnknownHostException e) { /* DELIBERATE */ }
90 return ret.toString();
93 public static Date parseDate(String s) { return null; } // FIXME!!!
95 // use null-sender for error messages (don't send errors to the null addr)
96 public Message bounce(String reason) { throw new RuntimeException("bounce not implemented"); } // FIXME!
98 public String summary() {
100 " Subject: " + subject + "\n" +
101 " EnvelopeFrom: " + envelope.from + "\n" +
102 " EnvelopeTo: " + envelope.to + "\n" +
103 " MessageId: " + messageid;
106 public void dump(Stream s) {
107 s.setNewline("\r\n");
108 s.println(headers.raw);
114 public int size() { return headers.raw.length() + 2 /* CRLF */ + body.length(); }
115 public String toString() { return headers.raw + "\r\n" + body; }
118 // SMTP Traces //////////////////////////////////////////////////////////////////////////////
120 public final Trace[] traces;
122 final String returnPath;
123 final Element[] elements;
124 public Trace(Stream stream) throws Trace.Malformed {
125 String retPath = stream.readln();
126 if (!retPath.startsWith("Return-Path:")) throw new Trace.Malformed("trace did not start with Return-Path header");
127 returnPath = retPath.substring(12).trim();
130 String s = stream.readln();
131 if (s == null) break;
132 if (!s.startsWith("Received:")) { stream.unread(s); break; }
133 s = s.substring(9).trim();
134 el.addElement(new Element(s));
136 elements = new Element[el.size()];
137 el.copyInto(elements);
139 public class Element {
145 public Element(String fromDomain, String fromIP, String toDomain, String forWhom, Date date) {
146 this.fromDomain=fromDomain; this.fromIP=fromIP; this.toDomain=toDomain; this.forWhom=forWhom; this.date=date; }
147 public Element(String s) throws Trace.Malformed {
148 StringTokenizer st = new StringTokenizer(s);
149 if (!st.nextToken().equals("FROM")) throw new Trace.Malformed("trace did note have a FROM element: " + s);
150 fromDomain = st.nextToken();
151 if (!st.nextToken().equals("BY")) throw new Trace.Malformed("trace did note have a BY element: " + s);
152 toDomain = st.nextToken();
153 // FIXME not done yet
156 public class Malformed extends Message.Malformed { public Malformed(String s) { super(s); } }
159 public static class Malformed extends Exception { public Malformed(String s) { super(s); } }
164 if (key.startsWith("Resent-")) {
165 if (resent.size() == 0 || key.startsWith("Resent-From")) resent.addElement(new Hashtable());
166 ((Hashtable)resent.lastElement()).put(key.substring(7), val);
167 } else if (key.startsWith("Return-Path")) {
169 traces.addElement(new Trace(stream));