BlobDataFileReferenceMac.mm   [plain text]

/*
 * Copyright (C) 2014 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h"
#import "BlobDataFileReference.h"

#if ENABLE(FILE_REPLACEMENT)

#import <wtf/FileMetadata.h>
#import <wtf/FileSystem.h>
#import <wtf/text/CString.h>

namespace WebCore {

void BlobDataFileReference::generateReplacementFile()
{
    ASSERT(m_replacementPath.isNull());
    ASSERT(m_replacementShouldBeGenerated);

    prepareForFileAccess();

    auto generatedFile = FileSystem::createTemporaryZipArchive(m_path);
    if (!generatedFile.isNull())
        m_replacementPath = WTFMove(generatedFile);

    m_replacementShouldBeGenerated = false;
    if (!m_replacementPath.isNull()) {
        if (auto metadata = FileSystem::fileMetadataFollowingSymlinks(m_replacementPath))
            m_size = metadata.value().length;
    }

    revokeFileAccess();
}

}

#endif