package org.ibex.mail;
-// FIXME MIME: RFC2045, 2046, 2049
-// NOTE: always use Win32 line endings
-// hard line limit: 998 chars
-// soft line limit (suggested): 78 chars
-// header fields: ascii 33-126 (but no colon)
-// field body: anything ASCII except CRLF
+import org.ibex.crypto.*;
+import org.ibex.js.*;
+import org.ibex.util.*;
+import org.ibex.mail.protocol.*;
+import java.util.*;
+import java.net.*;
+import java.io.*;
+
+// soft line limit (suggested): 78 chars / hard line limit: 998 chars
// folded headers: can insert CRLF anywhere that whitespace appears (before the whitespace)
-// body needs CRLF; one or the other alone is not acceptable
-// date/time parsing: see 3.3
+// 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
-public class Message {
+// FEATURE: lazy body
- public final String allHeaders; // pristine headers
- public final Hashtable headers; // hash of headers (not including resent's and traces)
+/**
+ * [immutable] This class encapsulates a message "floating in the
+ * ether": RFC2822 data but no storage-specific flags or other
+ * metadata.
+ */
+public class Message extends JSReflection {
+
+ public final String allHeaders; // pristine headers
+ public final Hashtable headers; // hash of headers (not including resent's and traces)
+ public final String body; // entire body
+ public final int lines; // lines in the body
- // parsed header fields
public final Date date;
public final Address to;
public final Address from; // if multiple From entries, this is sender
public final Hashtable[] resent;
public final Trace[] traces;
- // envelope fields
public final Address envelopeFrom;
- public final Address[] envelopeTo;
-
- public static class StoredMessage extends Message {
- public final int uid;
- public boolean deleted = false;
- public boolean read = false;
- public boolean answered = false;
- }
+ public final Address envelopeTo;
- public static class Address {
- public final String user;
- public final String host;
- public final String description;
- public Address(String user, String host, String description) {
- this.user = user; this.host = host; this.description = description;
- }
- public Address(String s) {
- s = s.trim();
- String descrip = null;
- if (s.indexOf('<') != -1) {
- if (s.indexOf('>') == -1) { /* FIXME */ }
- descrip = s.substring(0, s.indexOf('<')) + s.substring(s.indexOf('>') + 1);
- s = s.substring(s.indexOf('<') + 1, s.indexOf('>'));
- }
- if (s.indexOf('@') == -1) { /* FIXME */ }
- description = descrip;
- user = s.substring(0, s.indexOf('@'));
- host = s.substring(s.indexOf('@')+1);
- }
+ public final Date arrival; // when the message first arrived at this machine; IMAP "internal date message attr"
+
+ public void dump(OutputStream os) throws IOException {
+ Writer w = new OutputStreamWriter(os);
+ w.write("X-org.ibex.mail-envelopeFrom: " + envelopeFrom + "\r\n");
+ w.write("X-org.ibex.mail-envelopeTo: " + envelopeTo + "\r\n");
+ w.write(allHeaders);
+ w.write("\r\n");
+ w.write(body);
+ w.flush();
}
public class Trace {
- final String returnPath = null;
+ final String returnPath;
final Element[] elements;
- public class Element {
- final String fromDomain;
- final String fromIP;
- final String toDomain;
- final String forWhom;
- final Date date;
+ public Trace(LineReader lr) throws Trace.Malformed, IOException {
+ String retPath = lr.readLine();
+ 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 = lr.readLine();
+ if (s == null) break;
+ if (!s.startsWith("Received:")) { lr.pushback(s); break; }
+ s = s.substring(9).trim();
+ el.addElement(new Element(s));
+ }
+ elements = new Element[el.size()];
+ el.copyInto(elements);
}
- }
-
- public static class Base36 {
- public static String encode(long l) {
- StringBuffer ret = new StringBuffer();
- while (l > 0) {
- if ((l % 36) < 10) ret.append((char)(((int)'0') + (int)(l % 36)));
- else ret.append((char)(((int)'A') + (int)((l % 36) - 10)));
- l /= 36;
+ 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
}
}
+ public class Malformed extends Message.Malformed { public Malformed(String s) { super(s); } }
}
- public Message(ReadStream rs) {
- String key = null;
- StringBuffer all = new StringBuffer();
- for(String s = rs.readLine(); s != null && !s.equals(""); s = rs.readLine()) {
- all.append(s);
- all.append("\r\n");
- if (Character.isSpace(s.charAt(0))) {
- if (lastKey == null) { /* FIXME */ }
- headers.put(lastKey, headers.get(lastKey) + s);
- continue;
- }
- if (s.indexOf(':') == -1) { /* FIXME */ }
-
- key = s.substring(0, s.indexOf(':'));
- String val = s.substring(0, s.indexOf(':') + 1);
- while(Character.isSpace(val.charAt(0))) val = val.substring(1);
+ public static class Malformed extends MailException.Malformed { public Malformed(String s) { super(s); } }
- if (headers.get(key) != null)
+ public Message(Address envelopeFrom, Address envelopeTo, String s, Date arrival)
+ { this(envelopeFrom, envelopeTo, new LineReader(new StringReader(s)), arrival); }
+ public Message(Address envelopeFrom, Address envelopeTo, LineReader rs) { this(envelopeFrom, envelopeTo, rs, null); }
+ public Message(Address envelopeFrom, Address envelopeTo, LineReader rs, Date arrival) {
+ try {
+ this.arrival = arrival == null ? new Date() : arrival;
+ this.headers = new CaseInsensitiveHash();
+ Vec envelopeToHeader = new Vec();
+ String key = null;
+ StringBuffer all = new StringBuffer();
+ Date date = null;
+ Address to = null, from = null, replyto = null;
+ String subject = null, messageid = null;
+ Vec cc = new Vec(), bcc = new Vec(), resent = new Vec(), traces = new Vec();
+ for(String s = rs.readLine(); s != null && !s.equals(""); s = rs.readLine()) {
+ all.append(s);
+ all.append("\r\n");
+ if (s.length() == 0 || Character.isSpace(s.charAt(0))) {
+ if (key == null) throw new Malformed("Message began with a blank line; no headers");
+ ((CaseInsensitiveHash)headers).add(key, headers.get(key) + s);
+ continue;
+ }
+ if (s.indexOf(':') == -1) throw new Malformed("Header line does not contain colon: " + s);
+ key = s.substring(0, s.indexOf(':'));
+ for(int i=0; i<key.length(); i++)
+ if (key.charAt(i) < 33 || key.charAt(i) > 126)
+ throw new Malformed("Header key \""+key+"\" contains invalid character \"" + key.charAt(i) + "\"");
+ String val = s.substring(s.indexOf(':') + 1).trim();
+ while(val.length() > 0 && Character.isSpace(val.charAt(0))) val = val.substring(1);
if (key.startsWith("Resent-")) {
- // FIXME: multi-resent headers
- } else if (key.startsWith("Return-Path:")) {
- // FIXME: parse traces, see RFC2821, section 4.4
- } else if (key.startsWith("Recieved:")) {
- // FIXME: parse traces, see RFC2821, section 4.4
+ if (key.startsWith("Resent-From")) resent.addElement(new Hashtable());
+ ((Hashtable)resent.lastElement()).put(key.substring(7), val);
+ } else if (key.startsWith("Return-Path")) {
+ rs.pushback(s); traces.addElement(new Trace(rs));
+ } else if (key.equals("X-org.ibex.mail.headers.envelopeFrom")) {
+ if (envelopeFrom == null) envelopeFrom = new Address(val);
+ } else if (key.equals("X-org.ibex.mail.headers.envelopeTo")) {
+ if (envelopeTo == null) envelopeTo = new Address(val);
} else {
// just append it to the previous one; valid for Comments/Keywords
- val = headers.get(key) + " " + val;
- }
-
- headers.put(key, val);
- }
- pristeneHeaders = all.toString();
- StringBuffer body = new StringBuffer();
- for(String s = rs.readLine(); s != null && !s.equals(""); s = rs.readLine()) body.append(s);
- this.body = body.toString();
+ if (headers.get(key) != null) val = headers.get(key) + " " + val;
+ ((CaseInsensitiveHash)headers).add(key, val);
+ }
+ }
+
+ // FIXME what if all are null?
+ this.to = headers.get("To") == null ? envelopeTo : new Address((String)headers.get("To"));
+ this.from = headers.get("From") == null ? envelopeFrom : new Address((String)headers.get("From"));
+ this.envelopeFrom = envelopeFrom == null ? this.from : envelopeFrom;
+ this.envelopeTo = envelopeTo == null ? this.to : envelopeTo;
+
+ this.date = new Date(); // FIXME (Date)headers.get("Date");
+ this.replyto = headers.get("Reply-To") == null ? null : new Address((String)headers.get("Reply-To"));
+ this.subject = (String)headers.get("Subject");
+ this.messageid = (String)headers.get("Message-Id");
+ if (headers.get("Cc") != null) {
+ StringTokenizer st = new StringTokenizer((String)headers.get("Cc"));
+ this.cc = new Address[st.countTokens()];
+ for(int i=0; i<this.cc.length; i++) this.cc[i] = new Address(st.nextToken());
+ } else {
+ this.cc = new Address[0];
+ }
+ if (headers.get("Bcc") != null) {
+ StringTokenizer st = new StringTokenizer((String)headers.get("Bcc"));
+ this.bcc = new Address[st.countTokens()];
+ for(int i=0; i<this.bcc.length; i++) this.bcc[i] = new Address(st.nextToken());
+ } else {
+ this.bcc = new Address[0];
+ }
+ resent.copyInto(this.resent = new Hashtable[resent.size()]);
+ traces.copyInto(this.traces = new Trace[traces.size()]);
+ allHeaders = all.toString();
+ StringBuffer body = new StringBuffer();
+ int lines = 0;
+ for(String s = rs.readLine();; s = rs.readLine()) { if (s == null) break; lines++; body.append(s + "\r\n"); }
+ this.lines = lines;
+ this.body = body.toString();
+ } catch (IOException e) { throw new MailException.IOException(e); }
}
// http://www.jwz.org/doc/mid.html
+ private static final Random random = new Random();
public static String generateFreshMessageId() {
StringBuffer ret = new StringBuffer();
ret.append('<');
return ret.toString();
}
- private static final Random random = new Random();
+ public String rfc822() { return allHeaders + "\r\n" + body; }
+ public int rfc822size() { return allHeaders.length() + 2 /* CRLF */ + body.length(); } // FIXME: double check this
+
+ public String summary() {
+ return
+ " Subject: " + subject + "\n" +
+ " EnvelopeFrom: " + envelopeFrom + "\n" +
+ " EnvelopeTo: " + envelopeTo + "\n" +
+ " MessageId: " + messageid;
+ }
+
+ // 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!
+
+ private static class CaseInsensitiveHash extends Hashtable {
+ public Object get(Object o) { return (o instanceof String) ? super.get(((String)o).toLowerCase()) : super.get(o); }
+ public Object put(Object k, Object v) { throw new Error("you cannot write to a CaseInsensitiveHash"); }
+ void add(Object k, Object v) { if (k instanceof String) super.put(((String)k).toLowerCase(), v); else super.put(k, v); }
+ }
+
}
projects / org.ibex.mail.git / blobdiff