/* * 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 "FileSystemIOS.h" #import "NSFileManagerSPI.h" #import "PreviewConverter.h" #import "ResourceRequest.h" #import "SchemeRegistry.h" #import <wtf/Lock.h> #import <wtf/NeverDestroyed.h> #import "QuickLookSoftLink.h" namespace WebCore { NSSet *QLPreviewGetSupportedMIMETypesSet() { static NeverDestroyed<RetainPtr<NSSet>> set = QLPreviewGetSupportedMIMETypes(); return set.get().get(); } static Lock& qlPreviewConverterDictionaryMutex() { static NeverDestroyed<Lock> mutex; return mutex; } 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) { LockHolder lock(qlPreviewConverterDictionaryMutex()); [QLPreviewConverterDictionary() removeObjectForKey:url]; [QLContentDictionary() removeObjectForKey:url]; } static void addQLPreviewConverterWithFileForURL(NSURL *url, id converter, NSString *fileName) { ASSERT(url); ASSERT(converter); LockHolder lock(qlPreviewConverterDictionaryMutex()); [QLPreviewConverterDictionary() setObject:converter forKey:url]; [QLContentDictionary() setObject:(fileName ? fileName : @"") forKey:url]; } RetainPtr<NSURLRequest> registerQLPreviewConverterIfNeeded(NSURL *url, NSString *mimeType, NSData *data) { RetainPtr<NSString> updatedMIMEType = adoptNS(QLTypeCopyBestMimeTypeForURLAndMimeType(url, mimeType)); if ([QLPreviewGetSupportedMIMETypesSet() containsObject:updatedMIMEType.get()]) { RetainPtr<NSString> uti = adoptNS(QLTypeCopyUTIForURLAndMimeType(url, updatedMIMEType.get())); auto converter = std::make_unique<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(DoNotUpdateHTTPBody); } return nil; } static Vector<char> createQLPreviewProtocol() { Vector<char> previewProtocol; const char* qlPreviewScheme = [QLPreviewScheme UTF8String]; previewProtocol.append(qlPreviewScheme, strlen(qlPreviewScheme) + 1); return previewProtocol; } const char* QLPreviewProtocol() { static NeverDestroyed<Vector<char>> previewProtocol(createQLPreviewProtocol()); return previewProtocol.get().data(); } bool isQuickLookPreviewURL(const URL& url) { // Use some known protocols as a short-cut to avoid loading the QuickLook framework. if (url.protocolIsInHTTPFamily() || url.isBlankURL() || url.protocolIsBlob() || url.protocolIsData() || SchemeRegistry::shouldTreatURLSchemeAsLocal(url.protocol().toString())) return false; 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 = 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)