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//
// HTTPServerResponseImpl.cpp
//
// Library: Net
// Package: HTTPServer
// Module: HTTPServerResponseImpl
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Net/HTTPServerResponseImpl.h"
#include "Poco/Net/HTTPServerRequestImpl.h"
#include "Poco/Net/HTTPServerSession.h"
#include "Poco/Net/HTTPHeaderStream.h"
#include "Poco/Net/HTTPStream.h"
#include "Poco/Net/HTTPFixedLengthStream.h"
#include "Poco/Net/HTTPChunkedStream.h"
#include "Poco/File.h"
#include "Poco/Timestamp.h"
#include "Poco/NumberFormatter.h"
#include "Poco/StreamCopier.h"
#include "Poco/CountingStream.h"
#include "Poco/Exception.h"
#include "Poco/FileStream.h"
#include "Poco/DateTimeFormatter.h"
#include "Poco/DateTimeFormat.h"
using Poco::File;
using Poco::Timestamp;
using Poco::NumberFormatter;
using Poco::StreamCopier;
using Poco::OpenFileException;
using Poco::DateTimeFormatter;
using Poco::DateTimeFormat;
namespace Poco {
namespace Net {
HTTPServerResponseImpl::HTTPServerResponseImpl(HTTPServerSession& session):
_session(session),
_pRequest(0),
_pStream(0),
_pHeaderStream(0)
{
}
HTTPServerResponseImpl::~HTTPServerResponseImpl()
{
if (_pHeaderStream && _pHeaderStream != _pStream)
delete _pHeaderStream;
if (_pStream)
delete _pStream;
}
void HTTPServerResponseImpl::sendContinue()
{
HTTPHeaderOutputStream hs(_session);
hs << getVersion() << " 100 Continue\r\n\r\n";
}
std::ostream& HTTPServerResponseImpl::send()
{
poco_assert (!_pStream);
if ((_pRequest && _pRequest->getMethod() == HTTPRequest::HTTP_HEAD) ||
getStatus() < 200 ||
getStatus() == HTTPResponse::HTTP_NO_CONTENT ||
getStatus() == HTTPResponse::HTTP_NOT_MODIFIED)
{
Poco::CountingOutputStream cs;
write(cs);
_pStream = new HTTPFixedLengthOutputStream(_session, cs.chars());
write(*_pStream);
}
else if (getChunkedTransferEncoding())
{
HTTPHeaderOutputStream hs(_session);
write(hs);
_pStream = new HTTPChunkedOutputStream(_session);
}
else if (hasContentLength())
{
Poco::CountingOutputStream cs;
write(cs);
#if defined(POCO_HAVE_INT64)
_pStream = new HTTPFixedLengthOutputStream(_session, getContentLength64() + cs.chars());
#else
_pStream = new HTTPFixedLengthOutputStream(_session, getContentLength() + cs.chars());
#endif
write(*_pStream);
}
else
{
_pStream = new HTTPOutputStream(_session);
setKeepAlive(false);
write(*_pStream);
}
return *_pStream;
}
std::pair<std::ostream *, std::ostream *> HTTPServerResponseImpl::beginSend()
{
poco_assert (!_pStream);
poco_assert (!_pHeaderStream);
// NOTE Code is not exception safe.
if ((_pRequest && _pRequest->getMethod() == HTTPRequest::HTTP_HEAD) ||
getStatus() < 200 ||
getStatus() == HTTPResponse::HTTP_NO_CONTENT ||
getStatus() == HTTPResponse::HTTP_NOT_MODIFIED)
{
throw Exception("HTTPServerResponse::beginSend is invalid for HEAD request");
}
else if (getChunkedTransferEncoding())
{
_pHeaderStream = new HTTPHeaderOutputStream(_session);
beginWrite(*_pHeaderStream);
_pStream = new HTTPChunkedOutputStream(_session);
}
else if (hasContentLength())
{
throw Exception("HTTPServerResponse::beginSend is invalid for response with Content-Length header");
}
else
{
_pStream = new HTTPOutputStream(_session);
_pHeaderStream = _pStream;
setKeepAlive(false);
beginWrite(*_pStream);
}
return std::make_pair(_pHeaderStream, _pStream);
}
void HTTPServerResponseImpl::sendFile(const std::string& path, const std::string& mediaType)
{
poco_assert (!_pStream);
File f(path);
Timestamp dateTime = f.getLastModified();
File::FileSize length = f.getSize();
set("Last-Modified", DateTimeFormatter::format(dateTime, DateTimeFormat::HTTP_FORMAT));
#if defined(POCO_HAVE_INT64)
setContentLength64(length);
#else
setContentLength(static_cast<int>(length));
#endif
setContentType(mediaType);
setChunkedTransferEncoding(false);
Poco::FileInputStream istr(path);
if (istr.good())
{
_pStream = new HTTPHeaderOutputStream(_session);
write(*_pStream);
if (_pRequest && _pRequest->getMethod() != HTTPRequest::HTTP_HEAD)
{
StreamCopier::copyStream(istr, *_pStream);
}
}
else throw OpenFileException(path);
}
void HTTPServerResponseImpl::sendBuffer(const void* pBuffer, std::size_t length)
{
poco_assert (!_pStream);
setContentLength(static_cast<int>(length));
setChunkedTransferEncoding(false);
_pStream = new HTTPHeaderOutputStream(_session);
write(*_pStream);
if (_pRequest && _pRequest->getMethod() != HTTPRequest::HTTP_HEAD)
{
_pStream->write(static_cast<const char*>(pBuffer), static_cast<std::streamsize>(length));
}
}
void HTTPServerResponseImpl::redirect(const std::string& uri, HTTPStatus status)
{
poco_assert (!_pStream);
setContentLength(0);
setChunkedTransferEncoding(false);
setStatusAndReason(status);
set("Location", uri);
_pStream = new HTTPHeaderOutputStream(_session);
write(*_pStream);
}
void HTTPServerResponseImpl::requireAuthentication(const std::string& realm)
{
poco_assert (!_pStream);
setStatusAndReason(HTTPResponse::HTTP_UNAUTHORIZED);
std::string auth("Basic realm=\"");
auth.append(realm);
auth.append("\"");
set("WWW-Authenticate", auth);
}
} } // namespace Poco::Net
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