151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Copyright (c) 1996, 2009, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage sun.security.ssl; 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.io.*; 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/** 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * InputStream for application data as returned by SSLSocket.getInputStream(). 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * It uses an InputRecord as internal buffer that is refilled on demand 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * whenever it runs out of data. 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author David Brownell 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiclass AppInputStream extends InputStream { 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // static dummy array we use to implement skip() 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private final static byte[] SKIP_ARRAY = new byte[1024]; 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private SSLSocketImpl c; 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski InputRecord r; 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // One element array used to implement the single byte read() method 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private final byte[] oneByte = new byte[1]; 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski AppInputStream(SSLSocketImpl conn) { 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski r = new InputRecord(); 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski c = conn; 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Return the minimum number of bytes that can be read without blocking. 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Currently not synchronized. 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public int available() throws IOException { 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (c.checkEOF() || (r.isAppDataValid() == false)) { 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return 0; 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return r.available(); 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Read a single byte, returning -1 on non-fault EOF status. 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public synchronized int read() throws IOException { 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int n = read(oneByte, 0, 1); 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (n <= 0) { // EOF 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return -1; 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return oneByte[0] & 0xff; 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Read up to "len" bytes into this buffer, starting at "off". 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * If the layer above needs more data, it asks for more, so we 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * are responsible only for blocking to fill at most one buffer, 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * and returning "-1" on non-fault EOF status. 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public synchronized int read(byte b[], int off, int len) 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throws IOException { 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (b == null) { 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new NullPointerException(); 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } else if (off < 0 || len < 0 || len > b.length - off) { 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new IndexOutOfBoundsException(); 8851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } else if (len == 0) { 8951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return 0; 9051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 9251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (c.checkEOF()) { 9351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return -1; 9451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski try { 9651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /* 9751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Read data if needed ... notice that the connection guarantees 9851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * that handshake, alert, and change cipher spec data streams are 9951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * handled as they arrive, so we never see them here. 10051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 10151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski while (r.available() == 0) { 10251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski c.readDataRecord(r); 10351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (c.checkEOF()) { 10451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return -1; 10551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 10851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int howmany = Math.min(len, r.available()); 10951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski howmany = r.read(b, off, howmany); 11051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return howmany; 11151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } catch (Exception e) { 11251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // shutdown and rethrow (wrapped) exception as appropriate 11351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski c.handleException(e); 11451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // dummy for compiler 11551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return -1; 11651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 11751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 11851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 11951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 12051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 12151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Skip n bytes. This implementation is somewhat less efficient 12251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * than possible, but not badly so (redundant copy). We reuse 12351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the read() code to keep things simpler. Note that SKIP_ARRAY 12451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * is static and may garbled by concurrent use, but we are not interested 12551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * in the data anyway. 12651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 12751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public synchronized long skip(long n) throws IOException { 12851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski long skipped = 0; 12951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski while (n > 0) { 13051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int len = (int)Math.min(n, SKIP_ARRAY.length); 13151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int r = read(SKIP_ARRAY, 0, len); 13251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (r <= 0) { 13351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski break; 13451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 13551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski n -= r; 13651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski skipped += r; 13751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 13851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return skipped; 13951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 14051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 14151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /* 14251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Socket close is already synchronized, no need to block here. 14351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 14451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public void close() throws IOException { 14551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski c.close(); 14651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 14751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 14851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // inherit default mark/reset behavior (throw Exceptions) from InputStream 14951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 15051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 151