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/*
* Copyright (C) 2010 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#include "config.h"
#include "DOMFileSystem.h"
#if ENABLE(FILE_SYSTEM)
#include "AsyncFileSystem.h"
#include "DOMFilePath.h"
#include "DirectoryEntry.h"
#include "EntriesCallback.h"
#include "Entry.h"
#include "EntryArray.h"
#include "EntryCallback.h"
#include "ErrorCallback.h"
#include "FileEntry.h"
#include "FileError.h"
#include "FileSystemCallbacks.h"
#include "FileWriter.h"
#include "FileWriterCallback.h"
#include "MetadataCallback.h"
#include "ScriptExecutionContext.h"
#include "VoidCallback.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
DOMFileSystem::DOMFileSystem(ScriptExecutionContext* context, const String& name, PassOwnPtr<AsyncFileSystem> asyncFileSystem)
: ActiveDOMObject(context, this)
, m_name(name)
, m_asyncFileSystem(asyncFileSystem)
{
}
DOMFileSystem::~DOMFileSystem()
{
}
PassRefPtr<DirectoryEntry> DOMFileSystem::root()
{
return DirectoryEntry::create(this, DOMFilePath::root);
}
void DOMFileSystem::stop()
{
m_asyncFileSystem->stop();
}
bool DOMFileSystem::hasPendingActivity() const
{
return m_asyncFileSystem->hasPendingActivity();
}
void DOMFileSystem::contextDestroyed()
{
m_asyncFileSystem->stop();
ActiveDOMObject::contextDestroyed();
}
void DOMFileSystem::getMetadata(const Entry* entry, PassRefPtr<MetadataCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String platformPath = m_asyncFileSystem->virtualToPlatformPath(entry->fullPath());
m_asyncFileSystem->readMetadata(platformPath, MetadataCallbacks::create(successCallback, errorCallback));
}
static bool checkValidityForForCopyOrMove(const Entry* src, Entry* parent, const String& newName)
{
ASSERT(src);
if (!parent || !parent->isDirectory())
return false;
if (!newName.isEmpty() && !DOMFilePath::isValidName(newName))
return false;
// It is an error to try to copy or move an entry inside itself at any depth if it is a directory.
if (src->isDirectory() && DOMFilePath::isParentOf(src->fullPath(), parent->fullPath()))
return false;
// It is an error to copy or move an entry into its parent if a name different from its current one isn't provided.
if ((newName.isEmpty() || src->name() == newName) && DOMFilePath::getDirectory(src->fullPath()) == parent->fullPath())
return false;
return true;
}
void DOMFileSystem::move(const Entry* src, PassRefPtr<Entry> parent, const String& newName, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
if (!checkValidityForForCopyOrMove(src, parent.get(), newName)) {
scheduleCallback(scriptExecutionContext(), errorCallback, FileError::create(INVALID_MODIFICATION_ERR));
return;
}
String destPath = parent->fullPath();
if (!newName.isEmpty())
destPath = DOMFilePath::append(destPath, newName);
else
destPath = DOMFilePath::append(destPath, src->name());
String srcPlatformPath = m_asyncFileSystem->virtualToPlatformPath(src->fullPath());
String destPlatformPath = parent->filesystem()->asyncFileSystem()->virtualToPlatformPath(destPath);
m_asyncFileSystem->move(srcPlatformPath, destPlatformPath, EntryCallbacks::create(successCallback, errorCallback, this, destPath, src->isDirectory()));
}
void DOMFileSystem::copy(const Entry* src, PassRefPtr<Entry> parent, const String& newName, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
if (!checkValidityForForCopyOrMove(src, parent.get(), newName)) {
scheduleCallback(scriptExecutionContext(), errorCallback, FileError::create(INVALID_MODIFICATION_ERR));
return;
}
String destPath = parent->fullPath();
if (!newName.isEmpty())
destPath = DOMFilePath::append(destPath, newName);
else
destPath = DOMFilePath::append(destPath, src->name());
String srcPlatformPath = m_asyncFileSystem->virtualToPlatformPath(src->fullPath());
String destPlatformPath = parent->filesystem()->asyncFileSystem()->virtualToPlatformPath(destPath);
m_asyncFileSystem->copy(srcPlatformPath, destPlatformPath, EntryCallbacks::create(successCallback, errorCallback, this, destPath, src->isDirectory()));
}
void DOMFileSystem::remove(const Entry* entry, PassRefPtr<VoidCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(entry);
String platformPath = m_asyncFileSystem->virtualToPlatformPath(entry->fullPath());
m_asyncFileSystem->remove(platformPath, VoidCallbacks::create(successCallback, errorCallback));
}
void DOMFileSystem::getParent(const Entry* entry, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(entry);
String path = DOMFilePath::getDirectory(entry->fullPath());
String platformPath = m_asyncFileSystem->virtualToPlatformPath(path);
m_asyncFileSystem->directoryExists(platformPath, EntryCallbacks::create(successCallback, errorCallback, this, path, true));
}
void DOMFileSystem::getFile(const Entry* base, const String& path, PassRefPtr<Flags> flags, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(base);
if (!DOMFilePath::isValidPath(path)) {
scheduleCallback(scriptExecutionContext(), errorCallback, FileError::create(INVALID_MODIFICATION_ERR));
return;
}
String absolutePath = path;
if (!DOMFilePath::isAbsolute(path))
absolutePath = DOMFilePath::removeExtraParentReferences(DOMFilePath::append(base->fullPath(), path));
String platformPath = m_asyncFileSystem->virtualToPlatformPath(absolutePath);
OwnPtr<EntryCallbacks> callbacks = EntryCallbacks::create(successCallback, errorCallback, this, absolutePath, false);
if (flags && flags->isCreate())
m_asyncFileSystem->createFile(platformPath, flags->isExclusive(), callbacks.release());
else
m_asyncFileSystem->fileExists(platformPath, callbacks.release());
}
void DOMFileSystem::getDirectory(const Entry* base, const String& path, PassRefPtr<Flags> flags, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(base);
if (!DOMFilePath::isValidPath(path)) {
scheduleCallback(scriptExecutionContext(), errorCallback, FileError::create(INVALID_MODIFICATION_ERR));
return;
}
String absolutePath = path;
if (!DOMFilePath::isAbsolute(path))
absolutePath = DOMFilePath::removeExtraParentReferences(DOMFilePath::append(base->fullPath(), path));
String platformPath = m_asyncFileSystem->virtualToPlatformPath(absolutePath);
OwnPtr<EntryCallbacks> callbacks = EntryCallbacks::create(successCallback, errorCallback, this, absolutePath, true);
if (flags && flags->isCreate())
m_asyncFileSystem->createDirectory(platformPath, flags->isExclusive(), callbacks.release());
else
m_asyncFileSystem->directoryExists(platformPath, callbacks.release());
}
void DOMFileSystem::createWriter(const FileEntry* file, PassRefPtr<FileWriterCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(file);
String platformPath = m_asyncFileSystem->virtualToPlatformPath(file->fullPath());
RefPtr<FileWriter> fileWriter = FileWriter::create(scriptExecutionContext());
OwnPtr<FileWriterCallbacks> callbacks = FileWriterCallbacks::create(fileWriter, successCallback, errorCallback);
m_asyncFileSystem->createWriter(fileWriter.get(), platformPath, callbacks.release());
}
void DOMFileSystem::readDirectory(const String& path, PassRefPtr<EntriesCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(DOMFilePath::isAbsolute(path));
String platformPath = m_asyncFileSystem->virtualToPlatformPath(path);
m_asyncFileSystem->readDirectory(platformPath, EntriesCallbacks::create(successCallback, errorCallback, this, path));
}
} // namespace
#endif // ENABLE(FILE_SYSTEM)
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