1/* 2 * Copyright (C) 2014 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "BlobDataFileReference.h" 28 29#if ENABLE(FILE_REPLACEMENT) 30 31#include "FileMetadata.h" 32#include "SoftLinking.h" 33#include <wtf/text/CString.h> 34 35#if defined(__has_include) 36#if __has_include(<Bom/BOMCopier.h>) 37#include <Bom/BOMCopier.h> 38#endif 39#endif 40 41typedef struct _BOMCopier* BOMCopier; 42 43SOFT_LINK_PRIVATE_FRAMEWORK(Bom) 44SOFT_LINK(Bom, BOMCopierNew, BOMCopier, (), ()) 45SOFT_LINK(Bom, BOMCopierFree, void, (BOMCopier copier), (copier)) 46SOFT_LINK(Bom, BOMCopierCopyWithOptions, int, (BOMCopier copier, const char* fromObj, const char* toObj, CFDictionaryRef options), (copier, fromObj, toObj, options)) 47 48#define kBOMCopierOptionCreatePKZipKey CFSTR("createPKZip") 49#define kBOMCopierOptionSequesterResourcesKey CFSTR("sequesterResources") 50#define kBOMCopierOptionKeepParentKey CFSTR("keepParent") 51#define kBOMCopierOptionCopyResourcesKey CFSTR("copyResources") 52 53namespace WebCore { 54 55void BlobDataFileReference::generateReplacementFile() 56{ 57 ASSERT(m_replacementPath.isNull()); 58 ASSERT(m_replacementShouldBeGenerated); 59 60 prepareForFileAccess(); 61 62 RetainPtr<NSFileCoordinator> coordinator = adoptNS([[NSFileCoordinator alloc] initWithFilePresenter:nil]); 63 [coordinator coordinateReadingItemAtURL:[NSURL fileURLWithPath:m_path] options:NSFileCoordinatorReadingWithoutChanges error:nullptr byAccessor:^(NSURL *newURL) { 64 // The archive is put into a subdirectory of temporary directory for historic reasons. Changing this will require WebCore to change at the same time. 65 CString archivePath([NSTemporaryDirectory() stringByAppendingPathComponent:@"WebKitGeneratedFileXXXXXX"].fileSystemRepresentation); 66 if (!mktemp(archivePath.mutableData())) 67 return; 68 69 NSDictionary *options = @{ 70 (__bridge id)kBOMCopierOptionCreatePKZipKey : @YES, 71 (__bridge id)kBOMCopierOptionSequesterResourcesKey : @YES, 72 (__bridge id)kBOMCopierOptionKeepParentKey : @YES, 73 (__bridge id)kBOMCopierOptionCopyResourcesKey : @YES, 74 }; 75 76 BOMCopier copier = BOMCopierNew(); 77 if (!BOMCopierCopyWithOptions(copier, newURL.path.fileSystemRepresentation, archivePath.data(), (__bridge CFDictionaryRef)options)) 78 m_replacementPath = String::fromUTF8(archivePath); 79 BOMCopierFree(copier); 80 }]; 81 82 m_replacementShouldBeGenerated = false; 83 if (!m_replacementPath.isNull()) { 84 FileMetadata metadata; 85 if (getFileMetadata(m_replacementPath, metadata)) 86 m_size = metadata.length; 87 } 88 89 revokeFileAccess(); 90} 91 92} 93 94#endif 95