/*

 * Copyright (C) 2009 Google Inc. 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 Google Inc. 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.

 */

#include "config.h"

#include "WebHTTPBody.h"

#include "FormData.h"

#include "WebFileInfo.h"

using namespace WebCore;

namespace WebKit {

class WebHTTPBodyPrivate : public FormData {

};

void WebHTTPBody::initialize()

{

    assign(static_cast<WebHTTPBodyPrivate*>(FormData::create().releaseRef()));

}

void WebHTTPBody::reset()

{

    assign(0);

}

void WebHTTPBody::assign(const WebHTTPBody& other)

{

    WebHTTPBodyPrivate* p = const_cast<WebHTTPBodyPrivate*>(other.m_private);

    if (p)

        p->ref();

    assign(p);

}

size_t WebHTTPBody::elementCount() const

{

    ASSERT(!isNull());

    return m_private->elements().size();

}

bool WebHTTPBody::elementAt(size_t index, Element& result) const

{

    ASSERT(!isNull());

    if (index >= m_private->elements().size())

        return false;

    const FormDataElement& element = m_private->elements()[index];

    switch (element.m_type) {

    case FormDataElement::data:

        result.type = Element::TypeData;

        result.data.assign(element.m_data.data(), element.m_data.size());

        result.filePath.reset();

#if ENABLE(BLOB_SLICE)

        result.fileStart = 0;

        result.fileLength = 0;

        result.fileInfo.modificationTime = 0.0;

#endif

        break;

    case FormDataElement::encodedFile:

        result.type = Element::TypeFile;

        result.data.reset();

        result.filePath = element.m_filename;

#if ENABLE(BLOB_SLICE)

        result.fileStart = element.m_fileStart;

        result.fileLength = element.m_fileLength;

        result.fileInfo.modificationTime = element.m_expectedFileModificationTime;

#else

        result.fileStart = 0;

        result.fileLength = -1;

        result.fileInfo.modificationTime = 0.0;

#endif

        break;

    default:

        ASSERT_NOT_REACHED();

        return false;

    }

    return true;

}

void WebHTTPBody::appendData(const WebData& data)

{

    ensureMutable();

    // FIXME: FormDataElement::m_data should be a SharedBuffer<char>.  Then we

    // could avoid this buffer copy.

    m_private->appendData(data.data(), data.size());

}

void WebHTTPBody::appendFile(const WebString& filePath)

{

    ensureMutable();

    m_private->appendFile(filePath);

}

void WebHTTPBody::appendFileRange(const WebString& filePath, long long fileStart, long long fileLength, const WebFileInfo& fileInfo)

{

#if ENABLE(BLOB_SLICE)

    ensureMutable();

    m_private->appendFileRange(filePath, fileStart, fileLength, fileInfo.modificationTime);

#endif

}

long long WebHTTPBody::identifier() const

{

    ASSERT(!isNull());

    return m_private->identifier();

}

void WebHTTPBody::setIdentifier(long long identifier)

{

    ensureMutable();

    return m_private->setIdentifier(identifier);

}

WebHTTPBody::WebHTTPBody(const PassRefPtr<FormData>& data)

    : m_private(static_cast<WebHTTPBodyPrivate*>(data.releaseRef()))

{

}

WebHTTPBody& WebHTTPBody::operator=(const PassRefPtr<FormData>& data)

{

    assign(static_cast<WebHTTPBodyPrivate*>(data.releaseRef()));

    return *this;

}

WebHTTPBody::operator PassRefPtr<FormData>() const

{

    return m_private;

}

void WebHTTPBody::assign(WebHTTPBodyPrivate* p)

{

    // p is already ref'd for us by the caller

    if (m_private)

        m_private->deref();

    m_private = p;

}

void WebHTTPBody::ensureMutable()

{

    ASSERT(!isNull());

    if (!m_private->hasOneRef())

        assign(static_cast<WebHTTPBodyPrivate*>(m_private->copy().releaseRef()));

}

} // namespace WebKit