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//
//
HTTPChunkedStream.cpp
//
//
$Id: //poco/1.4/Net/src/HTTPChunkedStream.cpp#1 $
//
//
Library: Net
//
Package: HTTP
//
Module: HTTPChunkedStream
//
//
Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
//
and Contributors.
//
//
SPDX-License-Identifier: BSL-1.0
//
#
include
"
Poco/Net/HTTPChunkedStream.h
"
#
include
"
Poco/Net/HTTPSession.h
"
#
include
"
Poco/NumberFormatter.h
"
#
include
"
Poco/NumberParser.h
"
#
include
"
Poco/Ascii.h
"
using
Poco::NumberFormatter;
using
Poco::NumberParser;
namespace
Poco
{
namespace
Net
{
//
//
HTTPChunkedStreamBuf
//
HTTPChunkedStreamBuf::HTTPChunkedStreamBuf
(HTTPSession& session, openmode mode):
HTTPBasicStreamBuf
(HTTPBufferAllocator::
BUFFER_SIZE
, mode),
_session
(session),
_mode
(mode),
_chunk
(
0
)
{
}
HTTPChunkedStreamBuf::~HTTPChunkedStreamBuf
()
{
}
void
HTTPChunkedStreamBuf::close
()
{
if
(_mode & std::ios::out)
{
sync
();
_session.
write
(
"
0
\r\n\r\n
"
,
5
);
}
}
int
HTTPChunkedStreamBuf::readFromDevice
(
char
* buffer, std::streamsize length)
{
static
const
int
eof = std::char_traits<
char
>::
eof
();
if
(_chunk ==
0
)
{
int
ch = _session.
get
();
while
(
Poco::Ascii::isSpace
(ch)) ch = _session.
get
();
std::string chunkLen;
while
(
Poco::Ascii::isHexDigit
(ch)) { chunkLen += (
char
) ch; ch = _session.
get
(); }
while
(ch != eof && ch !=
'
\n
'
) ch = _session.
get
();
unsigned
chunk;
if
(
NumberParser::tryParseHex
(chunkLen, chunk))
_chunk = (std::streamsize) chunk;
else
return
eof;
}
if
(_chunk >
0
)
{
if
(length > _chunk) length = _chunk;
int
n = _session.
read
(buffer, length);
if
(n >
0
) _chunk -= n;
return
n;
}
else
{
int
ch = _session.
get
();
while
(ch != eof && ch !=
'
\n
'
) ch = _session.
get
();
return
0
;
}
}
int
HTTPChunkedStreamBuf::writeToDevice
(
const
char
* buffer, std::streamsize length)
{
_chunkBuffer.
clear
();
NumberFormatter::appendHex
(_chunkBuffer, length);
_chunkBuffer.
append
(
"
\r\n
"
,
2
);
_chunkBuffer.
append
(buffer,
static_cast
<std::string::size_type>(length));
_chunkBuffer.
append
(
"
\r\n
"
,
2
);
_session.
write
(_chunkBuffer.
data
(),
static_cast
<std::streamsize>(_chunkBuffer.
size
()));
return
static_cast
<
int
>(length);
}
//
//
HTTPChunkedIOS
//
HTTPChunkedIOS::HTTPChunkedIOS
(HTTPSession& session, HTTPChunkedStreamBuf::openmode mode):
_buf
(session, mode)
{
poco_ios_init
(&_buf);
}
HTTPChunkedIOS::~HTTPChunkedIOS
()
{
try
{
_buf.
close
();
}
catch
(...)
{
}
}
HTTPChunkedStreamBuf*
HTTPChunkedIOS::rdbuf
()
{
return
&_buf;
}
//
//
HTTPChunkedInputStream
//
Poco::MemoryPool
HTTPChunkedInputStream::_pool
(
sizeof
(HTTPChunkedInputStream));
HTTPChunkedInputStream::HTTPChunkedInputStream
(HTTPSession& session):
HTTPChunkedIOS
(session, std::ios::in),
std::istream
(&_buf)
{
}
HTTPChunkedInputStream::~HTTPChunkedInputStream
()
{
}
void
* HTTPChunkedInputStream::
operator
new
(std::
size_t
size)
{
return
_pool.
get
();
}
void
HTTPChunkedInputStream::
operator
delete
(
void
* ptr)
{
try
{
_pool.
release
(ptr);
}
catch
(...)
{
poco_unexpected
();
}
}
//
//
HTTPChunkedOutputStream
//
Poco::MemoryPool
HTTPChunkedOutputStream::_pool
(
sizeof
(HTTPChunkedOutputStream));
HTTPChunkedOutputStream::HTTPChunkedOutputStream
(HTTPSession& session):
HTTPChunkedIOS
(session, std::ios::out),
std::ostream
(&_buf)
{
}
HTTPChunkedOutputStream::~HTTPChunkedOutputStream
()
{
}
void
* HTTPChunkedOutputStream::
operator
new
(std::
size_t
size)
{
return
_pool.
get
();
}
void
HTTPChunkedOutputStream::
operator
delete
(
void
* ptr)
{
try
{
_pool.
release
(ptr);
}
catch
(...)
{
poco_unexpected
();
}
}
} }
//
namespace Poco::Net
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