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Diffstat (limited to 'gnu/javax/net/ssl/provider/RecordInput.java')
| -rw-r--r-- | gnu/javax/net/ssl/provider/RecordInput.java | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/gnu/javax/net/ssl/provider/RecordInput.java b/gnu/javax/net/ssl/provider/RecordInput.java deleted file mode 100644 index d4ba5b596..000000000 --- a/gnu/javax/net/ssl/provider/RecordInput.java +++ /dev/null @@ -1,232 +0,0 @@ -/* RecordInput.java -- record layer input. - Copyright (C) 2006 Free Software Foundation, Inc. - -This file is a 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 of the License, 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; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, 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 gnu.javax.net.ssl.provider; - -import gnu.classpath.SystemProperties; -import gnu.classpath.debug.Component; -import gnu.classpath.debug.SystemLogger; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.DataInputStream; -import java.io.InputStream; -import java.io.IOException; -import java.io.PrintWriter; - -import java.util.logging.Logger; - -import javax.net.ssl.SSLProtocolException; - -class RecordInput -{ - - // Fields. - // ------------------------------------------------------------------------- - - private static final boolean DEBUG_RECORD_LAYER = true; - private static final Logger logger = SystemLogger.SYSTEM; - - private byte[] fragment; - private int index; - private ContentType type; - - private final DataInputStream in; - private Session session; - - // Constructor. - // ------------------------------------------------------------------------- - - RecordInput (final InputStream in, final Session session) - { - this.in = new DataInputStream (in); - this.session = session; - } - - // Instance methods. - // ------------------------------------------------------------------------- - - synchronized int available (ContentType type) throws IOException - { - if (fragment == null) - { - readRecord (); - } - if (type != this.type) - { - return 0; - } - return fragment.length - index; - } - - void setSession (Session session) - { - this.session = session; - } - - synchronized int read (byte[] buf, int off, int len, ContentType type) - throws IOException - { - if (off < 0 || len < 0 || off + len > buf.length) - { - throw new ArrayIndexOutOfBoundsException ("size=" + buf.length + - " off=" + off + " len=" + len); - } - if (fragment == null || index >= fragment.length) - { - readRecord (); - } - if (type != this.type) - { - return 0; - } - len = Math.min (len, fragment.length - index); - System.arraycopy (fragment, index, buf, off, len); - index += len; - return len; - } - - boolean pollClose () throws IOException - { - if (fragment == null || index >= fragment.length) - { - try - { - readRecord(); - } - catch (AlertException ae) - { - Alert alert = ae.getAlert(); - if (alert.getDescription() == Alert.Description.CLOSE_NOTIFY) - { - return true; - } - throw ae; - } - } - return false; - } - - private void readRecord() throws IOException - { - type = ContentType.read (in); - if ((type.getValue() & 0x80) != 0 || (type.getValue() & 0x40) != 0) - { - in.read(); - if ((type.getValue() & 0x40) != 0) - { - in.read(); - } - type = ContentType.read(in); - if (type != ContentType.CLIENT_HELLO_V2) - { - throw new SSLProtocolException("unsupported V2 message"); - } - type = ContentType.HANDSHAKE; - // Record this message, and re-present it as a normal handshake - // layer message. ClientHello will handle the real parsing. - ByteArrayOutputStream buffer = new ByteArrayOutputStream (256); - buffer.write(1); // The type we just read. - RecordingInputStream in2 = new RecordingInputStream (in, buffer); - ProtocolVersion version = ProtocolVersion.read (in2); - if (version.compareTo (ProtocolVersion.SSL_3) < 0) - { - throw new SSLProtocolException("unsupported client version"); - } - int len = (in2.read() & 0xFF) << 8 | (in2.read() & 0xFF); - len += (in2.read() & 0xFF) << 8 | (in2.read() & 0xFF); - len += (in2.read() & 0xFF) << 8 | (in2.read() & 0xFF); - int count = 0; - while (count < len) - { - int l = (int) in2.skip(len - count); - if (l > 0) - { - count += l; - } - } - fragment = buffer.toByteArray (); - index = 0; - - // We can't be encrypted/MACed/compressed here, since a V2 message - // will only be sent as the first message, and only by the client. - return; - } - ProtocolVersion v = ProtocolVersion.read (in); - int len = in.readUnsignedShort (); - if (len > session.params.getFragmentLength() + 2048) - { - throw new OverflowException(); - } - fragment = new byte [len]; - in.readFully (fragment); - - if (DEBUG_RECORD_LAYER) - { - logger.log (Component.SSL_RECORD_LAYER, - ">> READ RECORD <<{4}" + - "struct {{4}" + - " type = {0};{4}" + - " version = {1};{4}" + - " length = {2};{4}" + - "{3}{4}" + - "} TLSCiphertext;", new Object[] - { - type, v, new Integer (len), - Util.hexDump (fragment, " "), - SystemProperties.getProperty ("line.separator") - }); - } - - fragment = session.params.decrypt (fragment, v, type); - index = 0; - - if (session.random != null) - session.random.setSeed (fragment); - - if (type == ContentType.ALERT) - { - Alert alert = Alert.read (new ByteArrayInputStream (fragment)); - session.currentAlert = alert; - } - if (session.currentAlert != null) - { - throw new AlertException (session.currentAlert, false); - } - } -} |