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/*
* Copyright (C) 2009-2017 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 "QuickLook.h"
#if USE(QUICK_LOOK)
#import "PreviewConverter.h"
#import "ResourceRequest.h"
#import <pal/ios/QuickLookSoftLink.h>
#import <pal/spi/cocoa/NSFileManagerSPI.h>
#import <wtf/FileSystem.h>
#import <wtf/Lock.h>
#import <wtf/NeverDestroyed.h>
namespace WebCore {
const char* QLPreviewProtocol = "x-apple-ql-id";
NSSet *QLPreviewGetSupportedMIMETypesSet()
{
static NSSet *set = [PAL::softLink_QuickLook_QLPreviewGetSupportedMIMETypes() retain];
return set;
}
static Lock qlPreviewConverterDictionaryLock;
static NSMutableDictionary *QLPreviewConverterDictionary()
{
static NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init];
return dictionary;
}
static NSMutableDictionary *QLContentDictionary()
{
static NSMutableDictionary *contentDictionary = [[NSMutableDictionary alloc] init];
return contentDictionary;
}
void removeQLPreviewConverterForURL(NSURL *url)
{
auto locker = holdLock(qlPreviewConverterDictionaryLock);
[QLPreviewConverterDictionary() removeObjectForKey:url];
[QLContentDictionary() removeObjectForKey:url];
}
static void addQLPreviewConverterWithFileForURL(NSURL *url, id converter, NSString *fileName)
{
ASSERT(url);
ASSERT(converter);
auto locker = holdLock(qlPreviewConverterDictionaryLock);
[QLPreviewConverterDictionary() setObject:converter forKey:url];
[QLContentDictionary() setObject:(fileName ? fileName : @"") forKey:url];
}
RetainPtr<NSURLRequest> registerQLPreviewConverterIfNeeded(NSURL *url, NSString *mimeType, NSData *data)
{
RetainPtr<NSString> updatedMIMEType = adoptNS(PAL::softLink_QuickLook_QLTypeCopyBestMimeTypeForURLAndMimeType(url, mimeType));
if ([QLPreviewGetSupportedMIMETypesSet() containsObject:updatedMIMEType.get()]) {
RetainPtr<NSString> uti = adoptNS(PAL::softLink_QuickLook_QLTypeCopyUTIForURLAndMimeType(url, updatedMIMEType.get()));
auto converter = makeUnique<PreviewConverter>(data, uti.get());
ResourceRequest previewRequest = converter->previewRequest();
// We use [request URL] here instead of url since it will be
// the URL that the WebDataSource will see during -dealloc.
addQLPreviewConverterWithFileForURL(previewRequest.url(), converter->platformConverter(), nil);
return previewRequest.nsURLRequest(HTTPBodyUpdatePolicy::DoNotUpdateHTTPBody);
}
return nil;
}
bool isQuickLookPreviewURL(const URL& url)
{
return url.protocolIs(QLPreviewProtocol);
}
static NSDictionary *temporaryFileAttributes()
{
static NSDictionary *attributes = [@{
NSFileOwnerAccountName : NSUserName(),
NSFilePosixPermissions : [NSNumber numberWithInteger:(WEB_UREAD | WEB_UWRITE)],
} retain];
return attributes;
}
static NSDictionary *temporaryDirectoryAttributes()
{
static NSDictionary *attributes = [@{
NSFileOwnerAccountName : NSUserName(),
NSFilePosixPermissions : [NSNumber numberWithInteger:(WEB_UREAD | WEB_UWRITE | WEB_UEXEC)],
NSFileProtectionKey : NSFileProtectionCompleteUnlessOpen,
} retain];
return attributes;
}
NSString *createTemporaryFileForQuickLook(NSString *fileName)
{
NSString *downloadDirectory = FileSystem::createTemporaryDirectory(@"QuickLookContent");
if (!downloadDirectory)
return nil;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
if (![fileManager setAttributes:temporaryDirectoryAttributes() ofItemAtPath:downloadDirectory error:&error]) {
LOG_ERROR("Failed to set attribute NSFileProtectionCompleteUnlessOpen on directory %@ with error: %@.", downloadDirectory, error.localizedDescription);
return nil;
}
NSString *contentPath = [downloadDirectory stringByAppendingPathComponent:fileName.lastPathComponent];
if (![fileManager _web_createFileAtPath:contentPath contents:nil attributes:temporaryFileAttributes()]) {
LOG_ERROR("Failed to create QuickLook temporary file at path %@.", contentPath);
return nil;
}
return contentPath;
}
} // namespace WebCore
#endif // USE(QUICK_LOOK)