# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1319530573 -7200
# Node ID b723308e1359cb8713ada964783864d34a5b6601
# Parent dc04a3c2c557010d897355cbcfa75811af896a2f
SMTP: dot escaping – imported GNU code.
diff -r dc04a3c2c557 -r b723308e1359 src/org/sonews/util/io/CRLFOutputStream.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/sonews/util/io/CRLFOutputStream.java Tue Oct 25 10:16:13 2011 +0200
@@ -0,0 +1,155 @@
+/* CRLFOutputStream.java --
+Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version.
+ */
+package org.sonews.util.io; // original package: gnu.java.net
+
+import java.io.FilterOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+
+/**
+ * An output stream that filters LFs into CR/LF pairs.
+ *
+ * @author Chris Burdess (dog@gnu.org)
+ */
+public class CRLFOutputStream extends FilterOutputStream {
+
+ static final String US_ASCII = "US-ASCII";
+ /**
+ * The CR octet.
+ */
+ public static final int CR = 13;
+ /**
+ * The LF octet.
+ */
+ public static final int LF = 10;
+ /**
+ * The CR/LF pair.
+ */
+ public static final byte[] CRLF = {CR, LF};
+ /**
+ * The last byte read.
+ */
+ protected int last;
+
+ /**
+ * Constructs a CR/LF output stream connected to the specified output stream.
+ */
+ public CRLFOutputStream(OutputStream out) {
+ super(out);
+ last = -1;
+ }
+
+ /**
+ * Writes a character to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(int ch) throws IOException {
+ if (ch == CR) {
+ out.write(CRLF);
+ } else if (ch == LF) {
+ if (last != CR) {
+ out.write(CRLF);
+ }
+ } else {
+ out.write(ch);
+ }
+ last = ch;
+ }
+
+ /**
+ * Writes a byte array to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(byte[] b) throws IOException {
+ write(b, 0, b.length);
+ }
+
+ /**
+ * Writes a portion of a byte array to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(byte[] b, int off, int len) throws IOException {
+ int d = off;
+ len += off;
+ for (int i = off; i < len; i++) {
+ switch (b[i]) {
+ case CR:
+ out.write(b, d, i - d);
+ out.write(CRLF, 0, 2);
+ d = i + 1;
+ break;
+ case LF:
+ if (last != CR) {
+ out.write(b, d, i - d);
+ out.write(CRLF, 0, 2);
+ }
+ d = i + 1;
+ break;
+ }
+ last = b[i];
+ }
+ if (len - d > 0) {
+ out.write(b, d, len - d);
+ }
+ }
+
+ /**
+ * Writes the specified ASCII string to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ public void write(String text) throws IOException {
+ try {
+ byte[] bytes = text.getBytes(US_ASCII);
+ write(bytes, 0, bytes.length);
+ } catch (UnsupportedEncodingException e) {
+ throw new IOException("The US-ASCII encoding is not supported on this system", e);
+ }
+ }
+
+ /**
+ * Writes a newline to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ public void writeln() throws IOException {
+ out.write(CRLF, 0, 2);
+ }
+}
diff -r dc04a3c2c557 -r b723308e1359 src/org/sonews/util/io/SMTPOutputStream.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/sonews/util/io/SMTPOutputStream.java Tue Oct 25 10:16:13 2011 +0200
@@ -0,0 +1,111 @@
+/*
+GNU-Classpath Extensions: javamail
+Copyright (C) 2002 Chris Burdess
+
+For more information on the classpathx please mail:
+nferrier@tapsellferrier.co.uk
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+package org.sonews.util.io; // original package: gnu.mail.providers.smtp
+
+import java.io.FilterOutputStream;
+import java.io.IOException;
+
+/**
+ * An output stream implementing the SMTP specification for dot escaping.
+ * Objects of this class are intended to be chained with CRLFOutputStream
+ * instances as all SMTP output is intended to be CRLF-escaped.
+ *
+ * @author dog@gnu.org
+ * @version 0.1
+ */
+public class SMTPOutputStream extends FilterOutputStream {
+
+ /**
+ * The LF octet.
+ */
+ public static final int LF = 0x0a;
+ /**
+ * The dot octet.
+ */
+ public static final int DOT = 0x2e;
+ /**
+ * The last octet read.
+ */
+ protected int last;
+
+ /**
+ * Constructs an SMTP output stream connected to the specified output stream.
+ * The underlying output stream should coordinate proper CRLF pairs at
+ * line ends.
+ * @param out a CRLFOutputStream
+ */
+ public SMTPOutputStream(CRLFOutputStream out) {
+ super(out);
+ }
+
+ /**
+ * Writes a character to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(int ch) throws IOException {
+ if (ch == DOT) {
+ if (last == LF) {
+ out.write(DOT);
+ }
+ }
+ out.write(ch);
+ last = ch;
+ }
+
+ /**
+ * Writes a byte array to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(byte b[]) throws IOException {
+ write(b, 0, b.length);
+ }
+
+ /**
+ * Writes a portion of a byte array to the underlying stream.
+ * @exception IOException if an I/O error occurred
+ */
+ @Override
+ public void write(byte b[], int off, int len) throws IOException {
+ int d = off;
+ len += off;
+ for (int i = off; i < len; i++) {
+ switch (b[i]) {
+ case DOT:
+ int l = (i - d);
+ if (l > 0) {
+ out.write(b, d, l);
+ }
+ d = i;
+ if (last == LF) {
+ out.write(DOT);
+ }
+ break;
+ }
+ last = b[i];
+ }
+ if (len - d > 0) {
+ out.write(b, d, len - d);
+ }
+ }
+}