feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/com/sun/jndi/ldap/sasl/SaslInputStream.java

@@ -0,0 +1,218 @@
+/*
+ * Copyright (c) 2001, 2003, 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.
+ */
+
+package com.sun.jndi.ldap.sasl;
+
+import javax.security.sasl.Sasl;
+import javax.security.sasl.SaslClient;
+import javax.security.sasl.SaslException;
+import java.io.IOException;
+import java.io.EOFException;
+import java.io.InputStream;
+
+/**
+ * This class is used by clients of Java SASL that need to create an input stream
+ * that uses SaslClient's unwrap() method to decode the SASL buffers
+ * sent by the SASL server.
+ *
+ * Extend from InputStream instead of FilterInputStream because
+ * we need to override less methods in InputStream. That is, the
+ * behavior of the default implementations in InputStream matches
+ * more closely with the behavior we want in SaslInputStream.
+ *
+ * @author Rosanna Lee
+ */
+public class SaslInputStream extends InputStream {
+    private static final boolean debug = false;
+
+    private byte[] saslBuffer;  // buffer for storing raw bytes
+    private byte[] lenBuf = new byte[4];  // buffer for storing length
+
+    private byte[] buf = new byte[0];   // buffer for storing processed bytes
+                                        // Initialized to empty buffer
+    private int bufPos = 0;             // read position in buf
+    private InputStream in;             // underlying input stream
+    private SaslClient sc;
+    private int recvMaxBufSize = 65536;
+
+    SaslInputStream(SaslClient sc, InputStream in) throws SaslException {
+        super();
+        this.in = in;
+        this.sc = sc;
+
+        String str = (String) sc.getNegotiatedProperty(Sasl.MAX_BUFFER);
+        if (str != null) {
+            try {
+                recvMaxBufSize = Integer.parseInt(str);
+            } catch (NumberFormatException e) {
+                throw new SaslException(Sasl.MAX_BUFFER +
+                    " property must be numeric string: " + str);
+            }
+        }
+        saslBuffer = new byte[recvMaxBufSize];
+    }
+
+    public int read() throws IOException {
+        byte[] inBuf = new byte[1];
+        int count = read(inBuf, 0, 1);
+        if (count > 0) {
+            return inBuf[0];
+        } else {
+            return -1;
+        }
+    }
+
+    public int read(byte[] inBuf, int start, int count) throws IOException {
+
+        if (bufPos >= buf.length) {
+            int actual = fill();   // read and unwrap next SASL buffer
+            while (actual == 0) {  // ignore zero length content
+                actual = fill();
+            }
+            if (actual == -1) {
+                return -1;    // EOF
+            }
+        }
+
+        int avail = buf.length - bufPos;
+        if (count > avail) {
+            // Requesting more that we have stored
+            // Return all that we have; next invocation of read() will
+            // trigger fill()
+            System.arraycopy(buf, bufPos, inBuf, start, avail);
+            bufPos = buf.length;
+            return avail;
+        } else {
+            // Requesting less than we have stored
+            // Return all that was requested
+            System.arraycopy(buf, bufPos, inBuf, start, count);
+            bufPos += count;
+            return count;
+        }
+    }
+
+    /**
+     * Fills the buf with more data by reading a SASL buffer, unwrapping it,
+     * and leaving the bytes in buf for read() to return.
+     * @return The number of unwrapped bytes available
+     */
+    private int fill() throws IOException {
+        // Read in length of buffer
+        int actual = readFully(lenBuf, 4);
+        if (actual != 4) {
+            return -1;
+        }
+        int len = networkByteOrderToInt(lenBuf, 0, 4);
+
+        if (len > recvMaxBufSize) {
+            throw new IOException(
+                len + "exceeds the negotiated receive buffer size limit:" +
+                recvMaxBufSize);
+        }
+
+        if (debug) {
+            System.err.println("reading " + len + " bytes from network");
+        }
+
+        // Read SASL buffer
+        actual = readFully(saslBuffer, len);
+        if (actual != len) {
+            throw new EOFException("Expecting to read " + len +
+                " bytes but got " + actual + " bytes before EOF");
+        }
+
+        // Unwrap
+        buf = sc.unwrap(saslBuffer, 0, len);
+
+        bufPos = 0;
+
+        return buf.length;
+    }
+
+    /**
+     * Read requested number of bytes before returning.
+     * @return The number of bytes actually read; -1 if none read
+     */
+    private int readFully(byte[] inBuf, int total) throws IOException {
+        int count, pos = 0;
+
+        if (debug) {
+            System.err.println("readFully " + total + " from " + in);
+        }
+
+        while (total > 0) {
+            count = in.read(inBuf, pos, total);
+
+            if (debug) {
+                System.err.println("readFully read " + count);
+            }
+
+            if (count == -1 ) {
+                return (pos == 0? -1 : pos);
+            }
+            pos += count;
+            total -= count;
+        }
+        return pos;
+    }
+
+    public int available() throws IOException {
+        return buf.length - bufPos;
+    }
+
+    public void close() throws IOException {
+        SaslException save = null;
+        try {
+            sc.dispose(); // Dispose of SaslClient's state
+        } catch (SaslException e) {
+            // Save exception for throwing after closing 'in'
+            save = e;
+        }
+
+        in.close();  // Close underlying input stream
+
+        if (save != null) {
+            throw save;
+        }
+    }
+
+    /**
+     * Returns the integer represented by  4 bytes in network byte order.
+     */
+    // Copied from com.sun.security.sasl.util.SaslImpl.
+    private static int networkByteOrderToInt(byte[] buf, int start, int count) {
+        if (count > 4) {
+            throw new IllegalArgumentException("Cannot handle more than 4 bytes");
+        }
+
+        int answer = 0;
+
+        for (int i = 0; i < count; i++) {
+            answer <<= 8;
+            answer |= ((int)buf[start+i] & 0xff);
+        }
+        return answer;
+    }
+}