160 lines
5.8 KiB
C++
160 lines
5.8 KiB
C++
/*
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* Copyright (C) 2008 Apple Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "File.h"
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#include "BlobURL.h"
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#include "MIMETypeRegistry.h"
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#include "ThreadableBlobRegistry.h"
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#include <wtf/DateMath.h>
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#include <wtf/FileSystem.h>
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#include <wtf/IsoMallocInlines.h>
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(File);
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Ref<File> File::createWithRelativePath(ScriptExecutionContext* context, const String& path, const String& relativePath)
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{
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auto file = File::create(context, path);
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file->setRelativePath(relativePath);
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return file;
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}
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Ref<File> File::create(ScriptExecutionContext* context, const String& path, const String& replacementPath, const String& nameOverride)
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{
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String name;
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String type;
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String effectivePath = !replacementPath.isNull() ? replacementPath : path;
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computeNameAndContentType(effectivePath, nameOverride, name, type);
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auto internalURL = BlobURL::createInternalURL();
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ThreadableBlobRegistry::registerFileBlobURL(internalURL, path, replacementPath, type);
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auto file = adoptRef(*new File(context, WTFMove(internalURL), WTFMove(type), WTFMove(effectivePath), WTFMove(name)));
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file->suspendIfNeeded();
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return file;
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}
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File::File(ScriptExecutionContext* context, URL&& url, String&& type, String&& path, String&& name)
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: Blob(uninitializedContructor, context, WTFMove(url), WTFMove(type))
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, m_path(WTFMove(path))
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, m_name(WTFMove(name))
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{
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}
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File::File(DeserializationContructor, ScriptExecutionContext* context, const String& path, const URL& url, const String& type, const String& name, const std::optional<int64_t>& lastModified)
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: Blob(deserializationContructor, context, url, type, { }, path)
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, m_path(path)
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, m_name(name)
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, m_lastModifiedDateOverride(lastModified)
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{
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}
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File::File(ScriptExecutionContext& context, Vector<BlobPartVariant>&& blobPartVariants, const String& filename, const PropertyBag& propertyBag)
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: Blob(context, WTFMove(blobPartVariants), propertyBag)
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, m_name(filename)
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, m_lastModifiedDateOverride(propertyBag.lastModified.value_or(WallTime::now().secondsSinceEpoch().milliseconds()))
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{
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}
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File::File(ScriptExecutionContext* context, const Blob& blob, const String& name)
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: Blob(referencingExistingBlobConstructor, context, blob)
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, m_name(name)
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{
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ASSERT(!blob.isFile());
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}
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File::File(ScriptExecutionContext* context, const File& file, const String& name)
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: Blob(referencingExistingBlobConstructor, context, file)
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, m_path(file.path())
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, m_relativePath(file.relativePath())
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, m_name(!name.isNull() ? name : file.name())
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, m_lastModifiedDateOverride(file.m_lastModifiedDateOverride)
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, m_isDirectory(file.isDirectory())
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{
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}
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int64_t File::lastModified() const
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{
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if (m_lastModifiedDateOverride)
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return m_lastModifiedDateOverride.value();
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int64_t result;
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// FIXME: This does sync-i/o on the main thread and also recalculates every time the method is called.
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// The i/o should be performed on a background thread,
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// and the result should be cached along with an asynchronous monitor for changes to the file.
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auto modificationTime = FileSystem::fileModificationTime(m_path);
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if (modificationTime)
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result = modificationTime->secondsSinceEpoch().millisecondsAs<int64_t>();
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else
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result = WallTime::now().secondsSinceEpoch().millisecondsAs<int64_t>();
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return WTF::timeClip(result);
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}
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void File::computeNameAndContentType(const String& path, const String& nameOverride, String& effectiveName, String& effectiveContentType)
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{
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#if ENABLE(FILE_REPLACEMENT)
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if (shouldReplaceFile(path)) {
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computeNameAndContentTypeForReplacedFile(path, nameOverride, effectiveName, effectiveContentType);
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return;
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}
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#endif
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effectiveName = nameOverride.isEmpty() ? FileSystem::pathFileName(path) : nameOverride;
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size_t index = effectiveName.reverseFind('.');
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if (index != notFound) {
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callOnMainThreadAndWait([&effectiveContentType, &effectiveName, index] {
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effectiveContentType = MIMETypeRegistry::mimeTypeForExtension(effectiveName.substring(index + 1)).isolatedCopy();
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});
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}
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}
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String File::contentTypeForFile(const String& path)
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{
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String name;
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String type;
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computeNameAndContentType(path, String(), name, type);
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return type;
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}
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bool File::isDirectory() const
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{
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if (!m_isDirectory)
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m_isDirectory = FileSystem::fileTypeFollowingSymlinks(m_path) == FileSystem::FileType::Directory;
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return *m_isDirectory;
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}
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const char* File::activeDOMObjectName() const
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{
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return "File";
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}
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} // namespace WebCore
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