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/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.io.*;
import java.nio.*;
import java.nio.charset.*;
/**
* An object used for sending Content to the requestor.
*
* @author Mark Reinhold
* @author Brad R. Wetmore
*/
class Reply implements Sendable {
/**
* A helper class which define the HTTP response codes
*/
static class Code {
private int number;
private String reason;
private Code(int i, String r) { number = i; reason = r; }
public String toString() { return number + " " + reason; }
static Code OK = new Code(200, "OK");
static Code BAD_REQUEST = new Code(400, "Bad Request");
static Code NOT_FOUND = new Code(404, "Not Found");
static Code METHOD_NOT_ALLOWED = new Code(405, "Method Not Allowed");
}
private Code code;
private Content content;
private boolean headersOnly;
Reply(Code rc, Content c) {
this(rc, c, null);
}
Reply(Code rc, Content c, Request.Action head) {
code = rc;
content = c;
headersOnly = (head == Request.Action.HEAD);
}
private static String CRLF = "\r\n";
private static Charset ascii = Charset.forName("US-ASCII");
private ByteBuffer hbb = null;
private ByteBuffer headers() {
CharBuffer cb = CharBuffer.allocate(1024);
for (;;) {
try {
cb.put("HTTP/1.0 ").put(code.toString()).put(CRLF);
cb.put("Server: niossl/0.1").put(CRLF);
cb.put("Content-type: ").put(content.type()).put(CRLF);
cb.put("Content-length: ")
.put(Long.toString(content.length())).put(CRLF);
cb.put(CRLF);
break;
} catch (BufferOverflowException x) {
assert(cb.capacity() < (1 << 16));
cb = CharBuffer.allocate(cb.capacity() * 2);
continue;
}
}
cb.flip();
return ascii.encode(cb);
}
public void prepare() throws IOException {
content.prepare();
hbb = headers();
}
public boolean send(ChannelIO cio) throws IOException {
if (hbb == null)
throw new IllegalStateException();
if (hbb.hasRemaining()) {
if (cio.write(hbb) <= 0)
return true;
}
if (!headersOnly) {
if (content.send(cio))
return true;
}
if (!cio.dataFlush())
return true;
return false;
}
public void release() throws IOException {
content.release();
}
}
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