| /* |
| * 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 "modules/filesystem/DOMFileSystemBase.h" |
| |
| #include "core/dom/ExecutionContext.h" |
| #include "core/fileapi/FileError.h" |
| #include "core/html/VoidCallback.h" |
| #include "modules/filesystem/DOMFilePath.h" |
| #include "modules/filesystem/DirectoryEntry.h" |
| #include "modules/filesystem/DirectoryReaderBase.h" |
| #include "modules/filesystem/EntriesCallback.h" |
| #include "modules/filesystem/Entry.h" |
| #include "modules/filesystem/EntryBase.h" |
| #include "modules/filesystem/EntryCallback.h" |
| #include "modules/filesystem/ErrorCallback.h" |
| #include "modules/filesystem/FileSystemCallbacks.h" |
| #include "modules/filesystem/MetadataCallback.h" |
| #include "platform/weborigin/SecurityOrigin.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebFileSystem.h" |
| #include "public/platform/WebFileSystemCallbacks.h" |
| #include "wtf/OwnPtr.h" |
| #include "wtf/text/StringBuilder.h" |
| |
| namespace WebCore { |
| |
| const char DOMFileSystemBase::persistentPathPrefix[] = "persistent"; |
| const char DOMFileSystemBase::temporaryPathPrefix[] = "temporary"; |
| const char DOMFileSystemBase::isolatedPathPrefix[] = "isolated"; |
| const char DOMFileSystemBase::externalPathPrefix[] = "external"; |
| |
| DOMFileSystemBase::DOMFileSystemBase(ExecutionContext* context, const String& name, FileSystemType type, const KURL& rootURL) |
| : m_context(context) |
| , m_name(name) |
| , m_type(type) |
| , m_filesystemRootURL(rootURL) |
| , m_clonable(false) |
| { |
| } |
| |
| DOMFileSystemBase::~DOMFileSystemBase() |
| { |
| } |
| |
| blink::WebFileSystem* DOMFileSystemBase::fileSystem() const |
| { |
| return blink::Platform::current()->fileSystem(); |
| } |
| |
| SecurityOrigin* DOMFileSystemBase::securityOrigin() const |
| { |
| return m_context->securityOrigin(); |
| } |
| |
| bool DOMFileSystemBase::isValidType(FileSystemType type) |
| { |
| return type == FileSystemTypeTemporary || type == FileSystemTypePersistent || type == FileSystemTypeIsolated || type == FileSystemTypeExternal; |
| } |
| |
| bool DOMFileSystemBase::crackFileSystemURL(const KURL& url, FileSystemType& type, String& filePath) |
| { |
| if (!url.protocolIs("filesystem")) |
| return false; |
| |
| if (!url.innerURL()) |
| return false; |
| |
| String typeString = url.innerURL()->path().substring(1); |
| if (!pathPrefixToFileSystemType(typeString, type)) |
| return false; |
| |
| filePath = decodeURLEscapeSequences(url.path()); |
| return true; |
| } |
| |
| KURL DOMFileSystemBase::createFileSystemRootURL(const String& origin, FileSystemType type) |
| { |
| String typeString; |
| if (type == FileSystemTypeTemporary) |
| typeString = temporaryPathPrefix; |
| else if (type == FileSystemTypePersistent) |
| typeString = persistentPathPrefix; |
| else if (type == FileSystemTypeExternal) |
| typeString = externalPathPrefix; |
| else |
| return KURL(); |
| |
| String result = "filesystem:" + origin + "/" + typeString + "/"; |
| return KURL(ParsedURLString, result); |
| } |
| |
| bool DOMFileSystemBase::supportsToURL() const |
| { |
| ASSERT(isValidType(m_type)); |
| return m_type != FileSystemTypeIsolated; |
| } |
| |
| KURL DOMFileSystemBase::createFileSystemURL(const EntryBase* entry) const |
| { |
| return createFileSystemURL(entry->fullPath()); |
| } |
| |
| KURL DOMFileSystemBase::createFileSystemURL(const String& fullPath) const |
| { |
| ASSERT(DOMFilePath::isAbsolute(fullPath)); |
| |
| if (type() == FileSystemTypeExternal) { |
| // For external filesystem originString could be different from what we have in m_filesystemRootURL. |
| StringBuilder result; |
| result.append("filesystem:"); |
| result.append(securityOrigin()->toString()); |
| result.append("/"); |
| result.append(externalPathPrefix); |
| result.append(m_filesystemRootURL.path()); |
| // Remove the extra leading slash. |
| result.append(encodeWithURLEscapeSequences(fullPath.substring(1))); |
| return KURL(ParsedURLString, result.toString()); |
| } |
| |
| // For regular types we can just append the entry's fullPath to the m_filesystemRootURL that should look like 'filesystem:<origin>/<typePrefix>'. |
| ASSERT(!m_filesystemRootURL.isEmpty()); |
| KURL url = m_filesystemRootURL; |
| // Remove the extra leading slash. |
| url.setPath(url.path() + encodeWithURLEscapeSequences(fullPath.substring(1))); |
| return url; |
| } |
| |
| bool DOMFileSystemBase::pathToAbsolutePath(FileSystemType type, const EntryBase* base, String path, String& absolutePath) |
| { |
| ASSERT(base); |
| |
| if (!DOMFilePath::isAbsolute(path)) |
| path = DOMFilePath::append(base->fullPath(), path); |
| absolutePath = DOMFilePath::removeExtraParentReferences(path); |
| |
| return (type != FileSystemTypeTemporary && type != FileSystemTypePersistent) || DOMFilePath::isValidPath(absolutePath); |
| } |
| |
| bool DOMFileSystemBase::pathPrefixToFileSystemType(const String& pathPrefix, FileSystemType& type) |
| { |
| if (pathPrefix == temporaryPathPrefix) { |
| type = FileSystemTypeTemporary; |
| return true; |
| } |
| |
| if (pathPrefix == persistentPathPrefix) { |
| type = FileSystemTypePersistent; |
| return true; |
| } |
| |
| if (pathPrefix == externalPathPrefix) { |
| type = FileSystemTypeExternal; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| void DOMFileSystemBase::getMetadata(const EntryBase* entry, PassOwnPtr<MetadataCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(MetadataCallbacks::create(successCallback, errorCallback, m_context, this)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| fileSystem()->readMetadata(createFileSystemURL(entry), callbacks.release()); |
| } |
| |
| 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; |
| |
| const bool isSameFileSystem = (*source->filesystem() == *parent->filesystem()); |
| |
| // 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() && isSameFileSystem && 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 (isSameFileSystem && (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; |
| } |
| |
| void DOMFileSystemBase::move(const EntryBase* source, EntryBase* parent, const String& newName, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| String destinationPath; |
| if (!verifyAndGetDestinationPathForCopyOrMove(source, parent, newName, destinationPath)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(EntryCallbacks::create(successCallback, errorCallback, m_context, parent->filesystem(), destinationPath, source->isDirectory())); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| fileSystem()->move(createFileSystemURL(source), parent->filesystem()->createFileSystemURL(destinationPath), callbacks.release()); |
| } |
| |
| void DOMFileSystemBase::copy(const EntryBase* source, EntryBase* parent, const String& newName, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| String destinationPath; |
| if (!verifyAndGetDestinationPathForCopyOrMove(source, parent, newName, destinationPath)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(EntryCallbacks::create(successCallback, errorCallback, m_context, parent->filesystem(), destinationPath, source->isDirectory())); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| fileSystem()->copy(createFileSystemURL(source), parent->filesystem()->createFileSystemURL(destinationPath), callbacks.release()); |
| } |
| |
| void DOMFileSystemBase::remove(const EntryBase* entry, PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| ASSERT(entry); |
| // We don't allow calling remove() on the root directory. |
| if (entry->fullPath() == String(DOMFilePath::root)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(VoidCallbacks::create(successCallback, errorCallback, m_context, this)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| fileSystem()->remove(createFileSystemURL(entry), callbacks.release()); |
| } |
| |
| void DOMFileSystemBase::removeRecursively(const EntryBase* entry, PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| ASSERT(entry && entry->isDirectory()); |
| // We don't allow calling remove() on the root directory. |
| if (entry->fullPath() == String(DOMFilePath::root)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(VoidCallbacks::create(successCallback, errorCallback, m_context, this)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| fileSystem()->removeRecursively(createFileSystemURL(entry), callbacks.release()); |
| } |
| |
| void DOMFileSystemBase::getParent(const EntryBase* entry, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback) |
| { |
| ASSERT(entry); |
| String path = DOMFilePath::getDirectory(entry->fullPath()); |
| fileSystem()->directoryExists(createFileSystemURL(path), EntryCallbacks::create(successCallback, errorCallback, m_context, this, path, true)); |
| } |
| |
| void DOMFileSystemBase::getFile(const EntryBase* entry, const String& path, const FileSystemFlags& flags, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| String absolutePath; |
| if (!pathToAbsolutePath(m_type, entry, path, absolutePath)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(EntryCallbacks::create(successCallback, errorCallback, m_context, this, absolutePath, false)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| if (flags.create) |
| fileSystem()->createFile(createFileSystemURL(absolutePath), flags.exclusive, callbacks.release()); |
| else |
| fileSystem()->fileExists(createFileSystemURL(absolutePath), callbacks.release()); |
| } |
| |
| void DOMFileSystemBase::getDirectory(const EntryBase* entry, const String& path, const FileSystemFlags& flags, PassOwnPtr<EntryCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| String absolutePath; |
| if (!pathToAbsolutePath(m_type, entry, path, absolutePath)) { |
| reportError(errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR)); |
| return; |
| } |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(EntryCallbacks::create(successCallback, errorCallback, m_context, this, absolutePath, true)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| if (flags.create) |
| fileSystem()->createDirectory(createFileSystemURL(absolutePath), flags.exclusive, callbacks.release()); |
| else |
| fileSystem()->directoryExists(createFileSystemURL(absolutePath), callbacks.release()); |
| } |
| |
| int DOMFileSystemBase::readDirectory(DirectoryReaderBase* reader, const String& path, PassOwnPtr<EntriesCallback> successCallback, PassOwnPtr<ErrorCallback> errorCallback, SynchronousType synchronousType) |
| { |
| ASSERT(DOMFilePath::isAbsolute(path)); |
| |
| OwnPtr<AsyncFileSystemCallbacks> callbacks(EntriesCallbacks::create(successCallback, errorCallback, m_context, reader, path)); |
| callbacks->setShouldBlockUntilCompletion(synchronousType == Synchronous); |
| |
| return fileSystem()->readDirectory(createFileSystemURL(path), callbacks.release()); |
| } |
| |
| bool DOMFileSystemBase::waitForAdditionalResult(int callbacksId) |
| { |
| return fileSystem()->waitForAdditionalResult(callbacksId); |
| } |
| |
| } // namespace WebCore |