jdk8-mips64-public/jaxws: comparison src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/UUDecoderStream.java

--1:000000000000
+:373ffda63c9a
+/*
+* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+*
+* This code is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License version 2 only, as
+* published by the Free Software Foundation.  Oracle designates this
+* particular file as subject to the "Classpath" exception as provided
+* by Oracle in the LICENSE file that accompanied this code.
+*
+* This code is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+* version 2 for more details (a copy is included in the LICENSE file that
+* accompanied this code).
+*
+* You should have received a copy of the GNU General Public License version
+* 2 along with this work; if not, write to the Free Software Foundation,
+* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+* or visit www.oracle.com if you need additional information or have any
+* questions.
+*/
+/* FROM mail.jar */
+package com.sun.xml.internal.org.jvnet.mimepull;
+import java.io.*;
+/**
+* This class implements a UUDecoder. It is implemented as
+* a FilterInputStream, so one can just wrap this class around
+* any input stream and read bytes from this filter. The decoding
+* is done as the bytes are read out.
+*
+* @author John Mani
+* @author Bill Shannon
+*/
+final class UUDecoderStream extends FilterInputStream {
+private String name;
+private int mode;
+private byte[] buffer = new byte[45]; // max decoded chars in a line = 45
+private int bufsize = 0;    // size of the cache
+private int index = 0;      // index into the cache
+private boolean gotPrefix = false;
+private boolean gotEnd = false;
+private LineInputStream lin;
+private boolean ignoreErrors;
+private boolean ignoreMissingBeginEnd;
+private String readAhead;
+/**
+* Create a UUdecoder that decodes the specified input stream.
+* The System property <code>mail.mime.uudecode.ignoreerrors</code>
+* controls whether errors in the encoded data cause an exception
+* or are ignored.  The default is false (errors cause exception).
+* The System property <code>mail.mime.uudecode.ignoremissingbeginend</code>
+* controls whether a missing begin or end line cause an exception
+* or are ignored.  The default is false (errors cause exception).
+* @param in        the input stream
+*/
+public UUDecoderStream(InputStream in) {
+super(in);
+lin = new LineInputStream(in);
+// default to false
+ignoreErrors = PropUtil.getBooleanSystemProperty(
+"mail.mime.uudecode.ignoreerrors", false);
+// default to false
+ignoreMissingBeginEnd = PropUtil.getBooleanSystemProperty(
+"mail.mime.uudecode.ignoremissingbeginend", false);
+}
+/**
+* Create a UUdecoder that decodes the specified input stream.
+* @param in                the input stream
+* @param ignoreErrors      ignore errors?
+* @param ignoreMissingBeginEnd     ignore missing begin or end?
+*/
+public UUDecoderStream(InputStream in, boolean ignoreErrors,
+boolean ignoreMissingBeginEnd) {
+super(in);
+lin = new LineInputStream(in);
+this.ignoreErrors = ignoreErrors;
+this.ignoreMissingBeginEnd = ignoreMissingBeginEnd;
+}
+/**
+* Read the next decoded byte from this input stream. The byte
+* is returned as an <code>int</code> in the range <code>0</code>
+* to <code>255</code>. If no byte is available because the end of
+* the stream has been reached, the value <code>-1</code> is returned.
+* This method blocks until input data is available, the end of the
+* stream is detected, or an exception is thrown.
+*
+* @return     next byte of data, or <code>-1</code> if the end of
+*             stream is reached.
+* @exception  IOException  if an I/O error occurs.
+* @see        java.io.FilterInputStream#in
+*/
+@Override
+public int read() throws IOException {
+if (index >= bufsize) {
+readPrefix();
+if (!decode()) {
+return -1;
+}
+index = 0; // reset index into buffer
+}
+return buffer[index++] & 0xff; // return lower byte
+}
+@Override
+public int read(byte[] buf, int off, int len) throws IOException {
+int i, c;
+for (i = 0; i < len; i++) {
+if ((c = read()) == -1) {
+if (i == 0) {// At end of stream, so we should
+i = -1; // return -1, NOT 0.
+}
+break;
+}
+buf[off+i] = (byte)c;
+}
+return i;
+}
+@Override
+public boolean markSupported() {
+return false;
+}
+@Override
+public int available() throws IOException {
+// This is only an estimate, since in.available()
+// might include CRLFs too ..
+return ((in.available() * 3)/4 + (bufsize-index));
+}
+/**
+* Get the "name" field from the prefix. This is meant to
+* be the pathname of the decoded file
+*
+* @return     name of decoded file
+* @exception  IOException  if an I/O error occurs.
+*/
+public String getName() throws IOException {
+readPrefix();
+return name;
+}
+/**
+* Get the "mode" field from the prefix. This is the permission
+* mode of the source file.
+*
+* @return     permission mode of source file
+* @exception  IOException  if an I/O error occurs.
+*/
+public int getMode() throws IOException {
+readPrefix();
+return mode;
+}
+/**
+* UUencoded streams start off with the line:
+*  "begin <mode> <filename>"
+* Search for this prefix and gobble it up.
+*/
+private void readPrefix() throws IOException {
+if (gotPrefix) {
+return;
+}
+mode = 0666;            // defaults, overridden below
+name = "encoder.buf";   // same default used by encoder
+String line;
+for (;;) {
+// read till we get the prefix: "begin MODE FILENAME"
+line = lin.readLine(); // NOTE: readLine consumes CRLF pairs too
+if (line == null) {
+if (!ignoreMissingBeginEnd) {
+throw new DecodingException("UUDecoder: Missing begin");
+}
+// at EOF, fake it
+gotPrefix = true;
+gotEnd = true;
+break;
+}
+if (line.regionMatches(false, 0, "begin", 0, 5)) {
+try {
+mode = Integer.parseInt(line.substring(6,9));
+} catch (NumberFormatException ex) {
+if (!ignoreErrors) {
+throw new DecodingException(
+"UUDecoder: Error in mode: " + ex.toString());
+}
+}
+if (line.length() > 10) {
+name = line.substring(10);
+} else {
+if (!ignoreErrors) {
+throw new DecodingException(
+"UUDecoder: Missing name: " + line);
+}
+}
+gotPrefix = true;
+break;
+} else if (ignoreMissingBeginEnd && line.length() != 0) {
+int count = line.charAt(0);
+count = (count - ' ') & 0x3f;
+int need = ((count * 8)+5)/6;
+if (need == 0 || line.length() >= need + 1) {
+/*
+* Looks like a legitimate encoded line.
+* Pretend we saw the "begin" line and
+* save this line for later processing in
+* decode().
+*/
+readAhead = line;
+gotPrefix = true;   // fake it
+break;
+}
+}
+}
+}
+private boolean decode() throws IOException {
+if (gotEnd) {
+return false;
+}
+bufsize = 0;
+int count = 0;
+String line;
+for (;;) {
+/*
+* If we ignored a missing "begin", the first line
+* will be saved in readAhead.
+*/
+if (readAhead != null) {
+line = readAhead;
+readAhead = null;
+} else {
+line = lin.readLine();
+}
+/*
+* Improperly encoded data sometimes omits the zero length
+* line that starts with a space character, we detect the
+* following "end" line here.
+*/
+if (line == null) {
+if (!ignoreMissingBeginEnd) {
+throw new DecodingException(
+"UUDecoder: Missing end at EOF");
+}
+gotEnd = true;
+return false;
+}
+if (line.equals("end")) {
+gotEnd = true;
+return false;
+}
+if (line.length() == 0) {
+continue;
+}
+count = line.charAt(0);
+if (count < ' ') {
+if (!ignoreErrors) {
+throw new DecodingException(
+"UUDecoder: Buffer format error");
+}
+continue;
+}
+/*
+* The first character in a line is the number of original (not
+*  the encoded atoms) characters in the line. Note that all the
+*  code below has to handle the <SPACE> character that indicates
+*  end of encoded stream.
+*/
+count = (count - ' ') & 0x3f;
+if (count == 0) {
+line = lin.readLine();
+if (line == null || !line.equals("end")) {
+if (!ignoreMissingBeginEnd) {
+throw new DecodingException(
+"UUDecoder: Missing End after count 0 line");
+}
+}
+gotEnd = true;
+return false;
+}
+int need = ((count * 8)+5)/6;
+//System.out.println("count " + count + ", need " + need + ", len " + line.length());
+if (line.length() < need + 1) {
+if (!ignoreErrors) {
+throw new DecodingException(
+"UUDecoder: Short buffer error");
+}
+continue;
+}
+// got a line we're committed to, break out and decode it
+break;
+}
+int i = 1;
+byte a, b;
+/*
+* A correct uuencoder always encodes 3 characters at a time, even
+* if there aren't 3 characters left.  But since some people out
+* there have broken uuencoders we handle the case where they
+* don't include these "unnecessary" characters.
+*/
+while (bufsize < count) {
+// continue decoding until we get 'count' decoded chars
+a = (byte)((line.charAt(i++) - ' ') & 0x3f);
+b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+buffer[bufsize++] = (byte)(((a << 2) & 0xfc) | ((b >>> 4) & 3));
+if (bufsize < count) {
+a = b;
+b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+buffer[bufsize++] =
+(byte)(((a << 4) & 0xf0) | ((b >>> 2) & 0xf));
+}
+if (bufsize < count) {
+a = b;
+b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+buffer[bufsize++] = (byte)(((a << 6) & 0xc0) | (b & 0x3f));
+}
+}
+return true;
+}
+/*** begin TEST program *****
+public static void main(String argv[]) throws Exception {
+FileInputStream infile = new FileInputStream(argv[0]);
+UUDecoderStream decoder = new UUDecoderStream(infile);
+int c;
+try {
+while ((c = decoder.read()) != -1)
+System.out.write(c);
+System.out.flush();
+} catch (Exception e) {
+e.printStackTrace();
+}
+}
+**** end TEST program ****/
+}

Mercurial > jdk8-mips64-public > jaxws / file comparison

comparison: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/UUDecoderStream.java

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/UUDecoderStream.java