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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 "DOMFileSystemBase.h"
#if ENABLE(FILE_SYSTEM)
#include "DOMFilePath.h"
#include "DirectoryEntry.h"
#include "DirectoryReaderBase.h"
#include "EntriesCallback.h"
#include "EntryArray.h"
#include "EntryBase.h"
#include "EntryCallback.h"
#include "ErrorCallback.h"
#include "FileError.h"
#include "FileSystemCallbacks.h"
#include "MetadataCallback.h"
#include "ScriptExecutionContext.h"
#include "VoidCallback.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
const char DOMFileSystemBase::kPersistentPathPrefix[] = "persistent";
const size_t DOMFileSystemBase::kPersistentPathPrefixLength = sizeof(DOMFileSystemBase::kPersistentPathPrefix) - 1;
const char DOMFileSystemBase::kTemporaryPathPrefix[] = "temporary";
const size_t DOMFileSystemBase::kTemporaryPathPrefixLength = sizeof(DOMFileSystemBase::kTemporaryPathPrefix) - 1;
const char DOMFileSystemBase::kExternalPathPrefix[] = "external";
const size_t DOMFileSystemBase::kExternalPathPrefixLength = sizeof(DOMFileSystemBase::kExternalPathPrefix) - 1;
bool DOMFileSystemBase::crackFileSystemURL(const KURL& url, AsyncFileSystem::Type& type, String& filePath)
{
if (!url.protocolIs("filesystem"))
return false;
KURL originURL(ParsedURLString, url.path());
String path = decodeURLEscapeSequences(originURL.path());
if (path.isEmpty() || path[0] != '/')
return false;
path = path.substring(1);
if (path.startsWith(kTemporaryPathPrefix)) {
type = AsyncFileSystem::Temporary;
path = path.substring(kTemporaryPathPrefixLength);
} else if (path.startsWith(kPersistentPathPrefix)) {
type = AsyncFileSystem::Persistent;
path = path.substring(kPersistentPathPrefixLength);
} else if (path.startsWith(kExternalPathPrefix)) {
type = AsyncFileSystem::External;
path = path.substring(kExternalPathPrefixLength);
} else
return false;
if (path.isEmpty() || path[0] != '/')
return false;
filePath.swap(path);
return true;
}
DOMFileSystemBase::DOMFileSystemBase(ScriptExecutionContext* context, const String& name, PassOwnPtr<AsyncFileSystem> asyncFileSystem)
: m_context(context)
, m_name(name)
, m_asyncFileSystem(asyncFileSystem)
{
}
DOMFileSystemBase::~DOMFileSystemBase()
{
}
SecurityOrigin* DOMFileSystemBase::securityOrigin() const
{
return m_context->securityOrigin();
}
bool DOMFileSystemBase::getMetadata(const EntryBase* entry, PassRefPtr<MetadataCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String platformPath = m_asyncFileSystem->virtualToPlatformPath(entry->fullPath());
m_asyncFileSystem->readMetadata(platformPath, MetadataCallbacks::create(successCallback, errorCallback));
return true;
}
static bool verifyAndGetDestinationPathForCopyOrMove(const EntryBase* source, EntryBase* parent, const String& newName, String& destinationPath)
{
ASSERT(source);
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 (source->isDirectory() && DOMFilePath::isParentOf(source->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() || source->name() == newName) && DOMFilePath::getDirectory(source->fullPath()) == parent->fullPath())
return false;
destinationPath = parent->fullPath();
if (!newName.isEmpty())
destinationPath = DOMFilePath::append(destinationPath, newName);
else
destinationPath = DOMFilePath::append(destinationPath, source->name());
return true;
}
static bool pathToAbsolutePath(const EntryBase* base, String path, String& absolutePath)
{
ASSERT(base);
if (!DOMFilePath::isAbsolute(path))
path = DOMFilePath::append(base->fullPath(), path);
absolutePath = DOMFilePath::removeExtraParentReferences(path);
if (!DOMFilePath::isValidPath(absolutePath))
return false;
return true;
}
bool DOMFileSystemBase::move(const EntryBase* source, EntryBase* parent, const String& newName, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String destinationPath;
if (!verifyAndGetDestinationPathForCopyOrMove(source, parent, newName, destinationPath))
return false;
String sourcePlatformPath = m_asyncFileSystem->virtualToPlatformPath(source->fullPath());
String destinationPlatformPath = parent->filesystem()->asyncFileSystem()->virtualToPlatformPath(destinationPath);
m_asyncFileSystem->move(sourcePlatformPath, destinationPlatformPath, EntryCallbacks::create(successCallback, errorCallback, this, destinationPath, source->isDirectory()));
return true;
}
bool DOMFileSystemBase::copy(const EntryBase* source, EntryBase* parent, const String& newName, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String destinationPath;
if (!verifyAndGetDestinationPathForCopyOrMove(source, parent, newName, destinationPath))
return false;
String sourcePlatformPath = m_asyncFileSystem->virtualToPlatformPath(source->fullPath());
String destinationPlatformPath = parent->filesystem()->asyncFileSystem()->virtualToPlatformPath(destinationPath);
m_asyncFileSystem->copy(sourcePlatformPath, destinationPlatformPath, EntryCallbacks::create(successCallback, errorCallback, this, destinationPath, source->isDirectory()));
return true;
}
bool DOMFileSystemBase::remove(const EntryBase* entry, PassRefPtr<VoidCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(entry);
// We don't allow calling remove() on the root directory.
if (entry->fullPath() == String(DOMFilePath::root))
return false;
String platformPath = m_asyncFileSystem->virtualToPlatformPath(entry->fullPath());
m_asyncFileSystem->remove(platformPath, VoidCallbacks::create(successCallback, errorCallback));
return true;
}
bool DOMFileSystemBase::removeRecursively(const EntryBase* entry, PassRefPtr<VoidCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
ASSERT(entry && entry->isDirectory());
// We don't allow calling remove() on the root directory.
if (entry->fullPath() == String(DOMFilePath::root))
return false;
String platformPath = m_asyncFileSystem->virtualToPlatformPath(entry->fullPath());
m_asyncFileSystem->removeRecursively(platformPath, VoidCallbacks::create(successCallback, errorCallback));
return true;
}
bool DOMFileSystemBase::getParent(const EntryBase* 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));
return true;
}
bool DOMFileSystemBase::getFile(const EntryBase* base, const String& path, PassRefPtr<WebKitFlags> flags, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String absolutePath;
if (!pathToAbsolutePath(base, path, absolutePath))
return false;
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());
return true;
}
bool DOMFileSystemBase::getDirectory(const EntryBase* base, const String& path, PassRefPtr<WebKitFlags> flags, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
{
String absolutePath;
if (!pathToAbsolutePath(base, path, absolutePath))
return false;
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());
return true;
}
bool DOMFileSystemBase::readDirectory(PassRefPtr<DirectoryReaderBase> reader, 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, reader, path));
return true;
}
} // namespace WebCore
#endif // ENABLE(FILE_SYSTEM)
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