X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fibex%2Fmail%2FMessage.java;h=73ab0f89e876684bfd915278828910c31f84894b;hb=866504299bfc44999e6cbb6c518a431d59908e65;hp=1243c5655fe3ff83ce2723f114d8518c6753027b;hpb=f45de886d35e8fc1def15d5b5d1589025866d450;p=org.ibex.mail.git diff --git a/src/org/ibex/mail/Message.java b/src/org/ibex/mail/Message.java index 1243c56..73ab0f8 100644 --- a/src/org/ibex/mail/Message.java +++ b/src/org/ibex/mail/Message.java @@ -1,25 +1,21 @@ +// Copyright 2000-2005 the Contributors, as shown in the revision logs. +// Licensed under the Apache Public Source License 2.0 ("the License"). +// You may not use this file except in compliance with the License. + package org.ibex.mail; import org.ibex.crypto.*; import org.ibex.util.*; import org.ibex.mail.protocol.*; +import org.ibex.js.*; import org.ibex.io.*; +import org.ibex.io.Fountain; import java.util.*; import java.net.*; import java.io.*; -// FIXME this is important: folded headers: can insert CRLF anywhere that whitespace appears (before the whitespace) - -// soft line limit (suggested): 78 chars / hard line limit: 998 chars -// date/time parsing: see spec, 3.3 - -// FIXME: messages must NEVER contain 8-bit binary data; this is a violation of IMAP - -// FEATURE: PGP-signature-parsing -// FEATURE: mailing list header parsing -// FEATURE: delivery status notification (and the sneaky variety) -// FEATURE: threading as in http://www.jwz.org/doc/threading.html -// FEATURE: lazy body -// FIXME RFC822 1,000-char limit per line +// FEATURE: body constraints (how to enforce without reading stream, though?) +// - messages must NEVER contain 8-bit binary data; this is a violation of IMAP +// - RFC822 1,000-char limit per line [soft line limit (suggested): 78 chars / hard line limit: 998 chars] /** * [immutable] This class encapsulates a message "floating in the @@ -28,49 +24,71 @@ import java.io.*; */ public class Message extends MIME.Part { - // Envelope ////////////////////////////////////////////////////////////////////////////// - - public final Envelope envelope; - public static class Envelope extends org.ibex.js.JSReflection { - public Envelope(Address from, Address to, Date arrival) { this.to = to; this.from = from; this.arrival = arrival; } - public final Date arrival; - public final Address to; - public final Address from; - public static Envelope augment(Envelope e, MIME.Headers h) { - if (e.from != null && e.to != null) return e; - Address to = e.to == null ? Address.parse(h.get("X-org.ibex.mail.headers.envelope.To")) : e.to; - Address from = e.from == null ? Address.parse(h.get("X-org.ibex.mail.headers.envelope.From")) : e.from; - return new Envelope(from, to, e.arrival); - } - } - - // Parsed Headers ////////////////////////////////////////////////////////////////////////////// public final Address to; public final Address from; // if multiple From entries, this is sender + public final Address envelopeFrom; + public final Address envelopeTo; public final Date date; + public final Date arrival; public final Address replyto; // if none provided, this is equal to sender public final String subject; public final String messageid; public final Address[] cc; public final Address[] bcc; - public final Hashtable[] resent; - - public Message(Stream stream, Envelope envelope) throws Malformed { - super(stream, null, false); - Vec resent = new Vec(), traces = new Vec(); - this.envelope = Envelope.augment(envelope, headers); - this.to = headers.get("To") == null ? envelope.to : Address.parse(headers.get("To")); - this.from = headers.get("From") == null ? envelope.from : Address.parse(headers.get("From")); - this.replyto = headers.get("Reply-To") == null ? null : Address.parse(headers.get("Reply-To")); + + public static Message newMessage(Fountain in) throws Malformed { return new Message(in, null); } + public static Message newMessageFromHeadersAndBody(Headers head, Fountain body, Address from, Address to) throws Malformed { + return new Message(Fountain.Util.concat(head, Fountain.Util.create("\r\n"), body), + new String[] { + "Return-Path", from==null ? "<>" : from.toString(true), + "Envelope-To", to.toString(true) + }); + } + /* + public static Message newMessageWithEnvelope(Fountain in, Address from, Address to) throws Malformed { + return new Message(in, + new String[] { + "Return-Path", from==null ? "<>" : from.toString(true), + "Envelope-To", to.toString(true) + }); + } + */ + public Message withEnvelope(Address from, Address to) { + return new Message(this, + new String[] { + "Return-Path", from==null ? "<>" : from.toString(true), + "Envelope-To", to.toString(true) + }); + } + private Message(Fountain in, String[] keyval) throws Malformed { + super(in, keyval); + + this.envelopeTo = headers.get("Envelope-To") != null ? Address.parse(headers.get("Envelope-To")) : null; + this.envelopeFrom = headers.get("Return-Path") != null ? Address.parse(headers.get("Return-Path")) : null; + this.to = headers.get("To") != null ? Address.parse(headers.get("To")) : this.envelopeTo; + this.from = headers.get("From") != null ? Address.parse(headers.get("From")) : this.envelopeFrom; + this.replyto = headers.get("Reply-To") == null ? null : Address.parse(headers.get("Reply-To")); this.subject = headers.get("Subject"); - this.messageid = headers.get("Message-Id"); + String messageid = headers.get("Message-Id"); this.cc = Address.list(headers.get("Cc")); - this.bcc = Address.list(headers.get("BCc")); - this.date = parseDate(headers.get("Date")); - resent.copyInto(this.resent = new Hashtable[resent.size()]); - traces.copyInto(this.traces = new Trace[traces.size()]); + this.bcc = Address.list(headers.get("Bcc")); + Date date = RobustDateParser.parseDate(headers.get("Date")); + this.date = date==null ? new Date() : date; + this.arrival = this.date; // FIXME wrong: should grab this from traces, I think? + + if (messageid == null) { + SHA1 sha1 = new SHA1(); + Stream s = this.getStream(); + s.setInputDigest(sha1); + s.transcribe(new Stream(new NullOutputStream())); + byte[] end = new byte[sha1.getDigestSize()]; + sha1.doFinal(end, 0); + messageid = ""; + Log.info(this, "synthesized messageid " + messageid); + } + this.messageid = messageid; } @@ -79,92 +97,84 @@ public class Message extends MIME.Part { // http://www.jwz.org/doc/mid.html private static final Random random = new Random(); public static String generateFreshMessageId() { + return generateFreshMessageId(Base36.encode(System.currentTimeMillis())+'.'+ + Base36.encode(random.nextLong())); + } + // FEATURE: sha1-based deterministic messageids? probably only useful for some virtual Mailbox impls though + public static String generateFreshMessageId(String seed) { StringBuffer ret = new StringBuffer(); ret.append('<'); - ret.append(Base36.encode(System.currentTimeMillis())); - ret.append('.'); - ret.append(Base36.encode(random.nextLong())); - ret.append('.'); + ret.append(seed); + ret.append('@'); try { ret.append(InetAddress.getLocalHost().getHostName()); } catch (UnknownHostException e) { /* DELIBERATE */ } ret.append('>'); return ret.toString(); } - public static Date parseDate(String s) { return null; } // FIXME!!! - - // use null-sender for error messages (don't send errors to the null addr) - public Message bounce(String reason) { throw new RuntimeException("bounce not implemented"); } // FIXME! - - public String summary() { - return - " Subject: " + subject + "\n" + - " EnvelopeFrom: " + envelope.from + "\n" + - " EnvelopeTo: " + envelope.to + "\n" + - " MessageId: " + messageid; + // FIXME: untested. Do we really want to duplicate all the old headers??? + public Message reply(Fountain body, Address from, boolean includeReInSubject) throws Malformed { + return reply(new String[0], body, from, includeReInSubject); } - - public void dump(Stream s) { - s.setNewline("\r\n"); - s.println(headers.raw); - s.println(); - s.println(body); - s.flush(); + public Message reply(String[] keyval, Fountain body, Address envelopeFrom, boolean includeReInSubject) throws Malformed { + Address to = null; + if (to==null) to = Address.parse(headers.get("reply-to")); + if (to==null) to = Address.parse(headers.get("from")); + if (to==null) to = this.envelopeFrom; + if (to==null) throw new Malformed("cannot reply to a message without a return address"); + String references = headers.get("references"); + String subject = this.subject; + if (includeReInSubject && subject!=null && !subject.toLowerCase().trim().startsWith("re:")) + subject = "Re: "+subject; + Headers h = new Headers(new Headers(new String[] { + "To", to.toString(true), + "Message-Id", generateFreshMessageId(), + "Date", new Date()+"" /*FIXME!!!*/, + "Subject", subject, + "In-Reply-To", messageid, + "References", messageid + (references==null?"":(" "+references)) + }), keyval); + return newMessageFromHeadersAndBody(h, body, from, to); } - public int size() { return headers.raw.length() + 2 /* CRLF */ + body.length(); } - public String toString() { return headers.raw + "\r\n" + body; } - - - // SMTP Traces ////////////////////////////////////////////////////////////////////////////// - - public final Trace[] traces; - public class Trace { - final String returnPath; - final Element[] elements; - public Trace(Stream stream) throws Trace.Malformed { - String retPath = stream.readln(); - if (!retPath.startsWith("Return-Path:")) throw new Trace.Malformed("trace did not start with Return-Path header"); - returnPath = retPath.substring(12).trim(); - Vec el = new Vec(); - while(true) { - String s = stream.readln(); - if (s == null) break; - if (!s.startsWith("Received:")) { stream.unread(s); break; } - s = s.substring(9).trim(); - el.addElement(new Element(s)); - } - elements = new Element[el.size()]; - el.copyInto(elements); - } - public class Element { - String fromDomain; - String fromIP; - String toDomain; - String forWhom; - Date date; - public Element(String fromDomain, String fromIP, String toDomain, String forWhom, Date date) { - this.fromDomain=fromDomain; this.fromIP=fromIP; this.toDomain=toDomain; this.forWhom=forWhom; this.date=date; } - public Element(String s) throws Trace.Malformed { - StringTokenizer st = new StringTokenizer(s); - if (!st.nextToken().equals("FROM")) throw new Trace.Malformed("trace did note have a FROM element: " + s); - fromDomain = st.nextToken(); - if (!st.nextToken().equals("BY")) throw new Trace.Malformed("trace did note have a BY element: " + s); - toDomain = st.nextToken(); - // FIXME not done yet - } + // this is belived to be compliant with QSBMF (http://cr.yp.to/proto/qsbmf.txt) + public Message bounce(String reason) { + if (envelopeFrom==null || envelopeFrom.toString().equals("")) return null; + + // FIXME: limit bounce body size + // FIXME: include headers from bounced message + Log.warn(Message.class, "bouncing message due to: " + reason); + Headers h = new Headers(headers, new String[] { + "Envelope-To", envelopeFrom.toString(), + "Return-Path", "<>", + "From", "MAILER-DAEMON <>", + "To", envelopeFrom.toString(), + "Subject", "failure notice" + }); + + String error = + "\r\n"+ + "Hi. This is the Ibex Mail Server. I'm afraid I wasn't able to deliver\r\n"+ + "your message to the following addresses. This is a permanent error;\r\n"+ + "I've given up. Sorry it didn't work out\r\n."+ + "\r\n"+ + "<"+envelopeTo.toString()+">:\r\n"+ + reason+"\r\n"+ + "\r\n"+ + "--- Below this line is a copy of the message.\r\n"+ + "\r\n"; + + try { + return newMessage(Fountain.Util.concat(h, Fountain.Util.create(error), getBody())); + } catch (Message.Malformed e) { + Log.error(this, "caught Message.Malformed in Message.bounce(); this should never happen"); + Log.error(this, e); + return null; } - public class Malformed extends Message.Malformed { public Malformed(String s) { super(s); } } } - public static class Malformed extends Exception { public Malformed(String s) { super(s); } } + public String toString() { throw new RuntimeException("Message.toString() called"); } + public final String summary() { return "[" + envelopeFrom + " -> " + envelopeTo + "] " + subject; } + public static class Malformed extends MailException { public Malformed(String s) { super(s); } } } - /* - if (key.startsWith("Resent-")) { - if (resent.size() == 0 || key.startsWith("Resent-From")) resent.addElement(new Hashtable()); - ((Hashtable)resent.lastElement()).put(key.substring(7), val); - } else if (key.startsWith("Return-Path")) { - stream.unread(s); - traces.addElement(new Trace(stream)); - */