--- /dev/null
+/*
+ * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+
+package com.sun.mail.mbox;
+
+import javax.mail.*;
+import javax.mail.internet.*;
+import javax.activation.*;
+import java.io.*;
+
+/**
+ * This class represents a SunV3 BodyPart.
+ *
+ * @author Bill Shannon
+ * @see javax.mail.Part
+ * @see javax.mail.internet.MimePart
+ * @see javax.mail.internet.MimeBodyPart
+ */
+
+public class SunV3BodyPart extends MimeBodyPart {
+ /**
+ * Constructs a SunV3BodyPart using the given header and
+ * content bytes. <p>
+ *
+ * Used by providers.
+ *
+ * @param headers The header of this part
+ * @param content bytes representing the body of this part.
+ */
+ public SunV3BodyPart(InternetHeaders headers, byte[] content)
+ throws MessagingException {
+ super(headers, content);
+ }
+
+ /**
+ * Return the size of the content of this BodyPart in bytes.
+ * Return -1 if the size cannot be determined. <p>
+ *
+ * Note that this number may not be an exact measure of the
+ * content size and may or may not account for any transfer
+ * encoding of the content. <p>
+ *
+ * @return size in bytes
+ */
+ public int getSize() throws MessagingException {
+ String s = getHeader("X-Sun-Content-Length", null);
+ try {
+ return Integer.parseInt(s);
+ } catch (NumberFormatException ex) {
+ return -1;
+ }
+ }
+
+ /**
+ * Return the number of lines for the content of this Part.
+ * Return -1 if this number cannot be determined. <p>
+ *
+ * Note that this number may not be an exact measure of the
+ * content length and may or may not account for any transfer
+ * encoding of the content.
+ */
+ public int getLineCount() throws MessagingException {
+ String s = getHeader("X-Sun-Content-Lines", null);
+ try {
+ return Integer.parseInt(s);
+ } catch (NumberFormatException ex) {
+ return -1;
+ }
+ }
+
+ /*
+ * This is just enough to get us going.
+ *
+ * For more complete transformation from V3 to MIME, refer to
+ * sun_att.c from the Sun IMAP server code.
+ */
+ static class MimeV3Map {
+ String mime;
+ String v3;
+
+ MimeV3Map(String mime, String v3) {
+ this.mime = mime;
+ this.v3 = v3;
+ }
+
+ private static MimeV3Map[] mimeV3Table = new MimeV3Map[] {
+ new MimeV3Map("text/plain", "text"),
+ new MimeV3Map("text/plain", "default"),
+ new MimeV3Map("multipart/x-sun-attachment", "X-sun-attachment"),
+ new MimeV3Map("application/postscript", "postscript-file"),
+ new MimeV3Map("image/gif", "gif-file")
+ // audio-file
+ // cshell-script
+ };
+
+ // V3 Content-Type to MIME Content-Type
+ static String toMime(String s) {
+ for (int i = 0; i < mimeV3Table.length; i++) {
+ if (mimeV3Table[i].v3.equalsIgnoreCase(s))
+ return mimeV3Table[i].mime;
+ }
+ return "application/x-" + s;
+ }
+
+ // MIME Content-Type to V3 Content-Type
+ static String toV3(String s) {
+ for (int i = 0; i < mimeV3Table.length; i++) {
+ if (mimeV3Table[i].mime.equalsIgnoreCase(s))
+ return mimeV3Table[i].v3;
+ }
+ return s;
+ }
+ }
+
+ /**
+ * Returns the value of the RFC822 "Content-Type" header field.
+ * This represents the content-type of the content of this
+ * BodyPart. This value must not be null. If this field is
+ * unavailable, "text/plain" should be returned. <p>
+ *
+ * This implementation uses <code>getHeader(name)</code>
+ * to obtain the requisite header field.
+ *
+ * @return Content-Type of this BodyPart
+ */
+ public String getContentType() throws MessagingException {
+ String ct = getHeader("Content-Type", null);
+ if (ct == null)
+ ct = getHeader("X-Sun-Data-Type", null);
+ if (ct == null)
+ ct = "text/plain";
+ else if (ct.indexOf('/') < 0)
+ ct = MimeV3Map.toMime(ct);
+ return ct;
+ }
+
+ /**
+ * Returns the value of the "Content-Transfer-Encoding" header
+ * field. Returns <code>null</code> if the header is unavailable
+ * or its value is absent. <p>
+ *
+ * This implementation uses <code>getHeader(name)</code>
+ * to obtain the requisite header field.
+ *
+ * @see #headers
+ */
+ public String getEncoding() throws MessagingException {
+ String enc = super.getEncoding();
+ if (enc == null)
+ enc = getHeader("X-Sun-Encoding-Info", null);
+ return enc;
+ }
+
+ /**
+ * Returns the "Content-Description" header field of this BodyPart.
+ * This typically associates some descriptive information with
+ * this part. Returns null if this field is unavailable or its
+ * value is absent. <p>
+ *
+ * If the Content-Description field is encoded as per RFC 2047,
+ * it is decoded and converted into Unicode. If the decoding or
+ * conversion fails, the raw data is returned as-is <p>
+ *
+ * This implementation uses <code>getHeader(name)</code>
+ * to obtain the requisite header field.
+ *
+ * @return content-description
+ */
+ public String getDescription() throws MessagingException {
+ String desc = super.getDescription();
+ if (desc == null)
+ desc = getHeader("X-Sun-Data-Description", null);
+ return desc;
+ }
+
+ /**
+ * Set the "Content-Description" header field for this BodyPart.
+ * If the description parameter is <code>null</code>, then any
+ * existing "Content-Description" fields are removed. <p>
+ *
+ * If the description contains non US-ASCII characters, it will
+ * be encoded using the platform's default charset. If the
+ * description contains only US-ASCII characters, no encoding
+ * is done and it is used as-is.
+ *
+ * @param description content-description
+ * @exception IllegalWriteException if the underlying
+ * implementation does not support modification
+ * @exception IllegalStateException if this BodyPart is
+ * obtained from a READ_ONLY folder.
+ */
+ public void setDescription(String description) throws MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart not writable");
+ }
+
+ /**
+ * Set the "Content-Description" header field for this BodyPart.
+ * If the description parameter is <code>null</code>, then any
+ * existing "Content-Description" fields are removed. <p>
+ *
+ * If the description contains non US-ASCII characters, it will
+ * be encoded using the specified charset. If the description
+ * contains only US-ASCII characters, no encoding is done and
+ * it is used as-is
+ *
+ * @param description Description
+ * @param charset Charset for encoding
+ * @exception IllegalWriteException if the underlying
+ * implementation does not support modification
+ * @exception IllegalStateException if this BodyPart is
+ * obtained from a READ_ONLY folder.
+ */
+ public void setDescription(String description, String charset)
+ throws MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart not writable");
+ }
+
+ /**
+ * Get the filename associated with this BodyPart. <p>
+ *
+ * Returns the value of the "filename" parameter from the
+ * "Content-Disposition" header field of this BodyPart. If its
+ * not available, returns the value of the "name" parameter from
+ * the "Content-Type" header field of this BodyPart.
+ * Returns <code>null</code> if both are absent.
+ *
+ * @return filename
+ */
+ public String getFileName() throws MessagingException {
+ String name = super.getFileName();
+ if (name == null)
+ name = getHeader("X-Sun-Data-Name", null);
+ return name;
+ }
+
+ /**
+ * Set the filename associated with this BodyPart, if possible. <p>
+ *
+ * Sets the "filename" parameter of the "Content-Disposition"
+ * header field of this BodyPart.
+ *
+ * @exception IllegalWriteException if the underlying
+ * implementation does not support modification
+ * @exception IllegalStateException if this BodyPart is
+ * obtained from a READ_ONLY folder.
+ */
+ public void setFileName(String filename) throws MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart not writable");
+ }
+
+ /**
+ * This method provides the mechanism to set this BodyPart's content.
+ * The given DataHandler object should wrap the actual content.
+ *
+ * @param dh The DataHandler for the content
+ * @exception IllegalWriteException if the underlying
+ * implementation does not support modification
+ * @exception IllegalStateException if this BodyPart is
+ * obtained from a READ_ONLY folder.
+ */
+ public void setDataHandler(DataHandler dh)
+ throws MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart not writable");
+ }
+
+ /**
+ * Output the BodyPart as a RFC822 format stream.
+ *
+ * @exception MessagingException
+ * @exception IOException if an error occurs writing to the
+ * stream or if an error is generated
+ * by the javax.activation layer.
+ * @see javax.activation.DataHandler#writeTo()
+ */
+ public void writeTo(OutputStream os)
+ throws IOException, MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart writeTo");
+ }
+
+ /**
+ * This is the method that has the 'smarts' to query the 'content'
+ * and update the appropriate headers. Typical headers that get
+ * set here are: Content-Type, Content-Encoding, boundary (for
+ * multipart). Now, the tricky part here is when to actually
+ * activate this method:
+ *
+ * - A Message being crafted by a mail-application will certainly
+ * need to activate this method at some point to fill up its internal
+ * headers. Typically this is triggered off by our writeTo() method.
+ *
+ * - A message read-in from a MessageStore will have obtained
+ * all its headers from the store, and so does'nt need this.
+ * However, if this message is editable and if any edits have
+ * been made to either the content or message-structure, we might
+ * need to resync our headers. Typically this is triggered off by
+ * the Message.saveChanges() methods.
+ */
+ protected void updateHeaders() throws MessagingException {
+ throw new MethodNotSupportedException("SunV3BodyPart updateHeaders");
+ }
+}