bogus
[org.ibex.mail.git] / src / org / ibex / mail / Message.java
index 0406cf6..5fd2e2f 100644 (file)
@@ -3,7 +3,6 @@ import org.ibex.crypto.*;
 import org.ibex.util.*;
 import org.ibex.mail.protocol.*;
 import org.ibex.io.*;
-import org.ibex.net.*;
 import java.util.*;
 import java.net.*;
 import java.io.*;
@@ -48,6 +47,8 @@ public class Message extends org.ibex.js.JSReflection {
     public final Address envelopeFrom;
     public final Address envelopeTo;
 
+    public final boolean mime;                // true iff Mime-Version is 1.0
+
     public final Date arrival;         // when the message first arrived at this machine; IMAP "internal date message attr"
     
     public int size() { return allHeaders.length() + 2 /* CRLF */ + body.length(); }
@@ -120,9 +121,44 @@ public class Message extends org.ibex.js.JSReflection {
             all.append(s);
             lines++;
             all.append("\r\n");
+            
+            // FIXME RFC822 1,000-char limit per line
+
+
+            // FIXME only iff Mime 1.0 (?)
+            // RFC 2047
+            try { while (s.indexOf("=?") != -1) {
+                String pre = s.substring(0, s.indexOf("=?"));
+                s = s.substring(s.indexOf("=?") + 2);
+
+                // MIME charset; FIXME use this
+                String charset = s.substring(0, s.indexOf('?')).toLowerCase();
+                s = s.substring(s.indexOf('?') + 1);
+
+                String encoding = s.substring(0, s.indexOf('?')).toLowerCase();
+                s = s.substring(s.indexOf('?') + 1);
+
+                String encodedText = s.substring(0, s.indexOf("?="));
+
+                if (encoding.equals("b"))      encodedText = new String(Base64.decode(encodedText));
+
+                // except that ANY char can be endoed (unlike real qp)
+                else if (encoding.equals("q")) encodedText = MIME.QuotedPrintable.decode(encodedText, true);
+                else Log.warn(this, "unknown RFC2047 encoding \""+encoding+"\"");
+
+                String post = s.substring(s.indexOf("?=") + 2);
+                s = pre + encodedText + post;
+
+                // FIXME re-encode when transmitting
+
+            } } catch (Exception e) {
+                Log.warn(this, "error trying to decode RFC2047 encoded-word: \""+s+"\"");
+                Log.warn(this, e);
+            }
+
             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);
+                ((CaseInsensitiveHash)headers).add(key, headers.get(key) + s.trim());
                 continue;
             }
             if (s.indexOf(':') == -1) throw new Malformed("Header line does not contain colon: " + s);
@@ -155,6 +191,7 @@ public class Message extends org.ibex.js.JSReflection {
         this.from         = headers.get("From") == null ? envelopeFrom  : Address.parse((String)headers.get("From"));
         this.envelopeFrom = envelopeFrom == null        ? this.from     : envelopeFrom;
         this.envelopeTo   = envelopeTo == null          ? this.to       : envelopeTo;
+        this.mime         = headers.get("mime-version") != null && headers.get("mime-version").toString().trim().startsWith("1.0");
         
         this.date      = new Date(); // FIXME (Date)headers.get("Date");
         this.replyto   = headers.get("Reply-To") == null ? null : Address.parse((String)headers.get("Reply-To"));
@@ -188,6 +225,114 @@ public class Message extends org.ibex.js.JSReflection {
         this.lines = lines;
         this.body = body.toString();
     }
+
+    public static class Part {
+        public final String  type;
+        public final String  subtype;
+        public final Hash    parameters = new Hash();
+        public final Part[]  subparts;
+        public final String  payload;
+        public final String  id;
+        public final String  description;
+
+        public final boolean composite;
+        public final boolean alternative;
+
+        // FIXME charsets  US-ASCII, ISO-8559-X, 
+        public Part(String contentTypeHeader, String transferEncoding,
+                    String id, String description, String payload) throws Malformed {
+            this.id = id;
+            this.description = description;
+
+            // NOTE: it is not valid to send a multipart  message as base64 or quoted-printable; you must encode each section
+            if (transferEncoding == null) transferEncoding = "7bit";
+            transferEncoding = transferEncoding.toLowerCase();
+            if (transferEncoding.equals("quoted-printable")) {
+                this.payload = MIME.QuotedPrintable.decode(payload, false);
+                subparts = null;
+            } else if (transferEncoding.equals("base64")) {
+                this.payload = new String(Base64.decode(payload));
+                subparts = null;
+            } else if (transferEncoding.equals("7bit") || transferEncoding.equals("8bit") ||
+                       transferEncoding.equals("binary")) {
+                this.payload = payload;
+
+                // multipart/mixed -- default
+                // multipart/parallel -- order of components does not matter
+                // multipart/alternative -- same data, different versions
+                // multipart/digest -- default content-type of components is message/rfc822
+
+                // message/rfc822
+                // message/partial -- not supported; see RFC 2046, section 5.2.2
+                // message/external-body -- not supported; see RFC 2046, section 5.2.3
+                
+                /* FIXME
+                if (composite) {
+                    // FIXME: StringTokenizer doesn't really work like this
+                    String boundary = "--" + parameters.get("boundary");  // CRLF, delimiter, optional whitespace, plus CRLF
+                    // preceeding CRLF is part of delimiter
+                    // boundary (including --) cannot be > 70 chars
+                    // delimiter after final part also has a '--' on the end
+                    // first part begins with a boundary delimiter
+                    StringTokenizer st = new StringTokenizer(payload, boundary);
+                    Vec v = new Vec();
+                    while(st.hasMoreTokens()) {
+                        st.nextToken();
+                        Part p = new Part();
+                        v.addElement(p);
+                    }
+                    v.copyInto(subparts = new Part[v.size()]);
+                } else {
+                }
+                */
+                subparts = null;
+            } else {
+                Log.warn(this, "unknown Content-Transfer-Encoding \"" + transferEncoding +
+                         "\"; forcing Content-Type to application/octet-stream (originally \""+contentTypeHeader+"\"");
+                contentTypeHeader = "application/octet-stream";
+                this.payload = payload;
+                subparts = null;
+            }
+
+            if (contentTypeHeader == null) {
+                type = "text";
+                subtype = "plain";
+                parameters.put("charset", "us-ascii");
+            } else {
+                contentTypeHeader = contentTypeHeader.trim();
+                if (contentTypeHeader.endsWith(")")) // remove RFC822 comments
+                    contentTypeHeader = contentTypeHeader.substring(0, contentTypeHeader.lastIndexOf('('));
+                if (contentTypeHeader.indexOf('/') == -1)
+                    throw new Malformed("content-type header lacks a forward slash: \"" + contentTypeHeader + "\"");
+                type = contentTypeHeader.substring(0, contentTypeHeader.indexOf('/')).toLowerCase();
+                contentTypeHeader = contentTypeHeader.substring(contentTypeHeader.indexOf('/') + 1);
+                if (contentTypeHeader.indexOf(';') == -1) {
+                    subtype = contentTypeHeader.toLowerCase();
+                } else {
+                    subtype = contentTypeHeader.substring(0, contentTypeHeader.indexOf(';')).toLowerCase();
+                    StringTokenizer st = new StringTokenizer(contentTypeHeader.substring(contentTypeHeader.indexOf(';') + 1), ";");
+                    while(st.hasMoreTokens()) {
+                        String key = st.nextToken().trim();
+                        if (key.indexOf('=') == -1)
+                            throw new Malformed("content-type parameter lacks an equals sign: \""+key+"\"");
+                        String val = key.substring(key.indexOf('=')+1).trim();
+                        if (val.startsWith("\"") && val.endsWith("\"")) val = val.substring(1, val.length() - 2);
+                        key = key.substring(0, key.indexOf('=')+1).toLowerCase();
+                        parameters.put(key, val);
+                    }
+                }
+            }
+
+            composite = type.equals("message") || type.equals("multipart");
+            alternative = composite && subtype.equals("alternative");
+
+
+            // fixme: message/rfc822
+
+            // body parts need only contain Content-Foo headers (or none at all); they need not be rfc822 compliant
+
+        }
+    }
     
     // http://www.jwz.org/doc/mid.html
     private static final Random random = new Random();