1/*
2 * Copyright (C) 2012, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
23 * DAMAGE.
24 */
25
26#include "config.h"
27#include "DOMWindowFileSystem.h"
28
29#if ENABLE(FILE_SYSTEM)
30
31#include "AsyncFileSystem.h"
32#include "DOMFileSystem.h"
33#include "DOMWindow.h"
34#include "Document.h"
35#include "EntryCallback.h"
36#include "ErrorCallback.h"
37#include "FileError.h"
38#include "FileSystemCallback.h"
39#include "FileSystemCallbacks.h"
40#include "FileSystemType.h"
41#include "LocalFileSystem.h"
42#include "SecurityOrigin.h"
43
44namespace WebCore {
45
46DOMWindowFileSystem::DOMWindowFileSystem()
47{
48}
49
50DOMWindowFileSystem::~DOMWindowFileSystem()
51{
52}
53
54void DOMWindowFileSystem::webkitRequestFileSystem(DOMWindow* window, int type, long long size, PassRefPtr<FileSystemCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
55{
56    if (!window->isCurrentlyDisplayedInFrame())
57        return;
58
59    Document* document = window->document();
60    if (!document)
61        return;
62
63    if (!AsyncFileSystem::isAvailable() || !document->securityOrigin()->canAccessFileSystem()) {
64        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SECURITY_ERR));
65        return;
66    }
67
68    FileSystemType fileSystemType = static_cast<FileSystemType>(type);
69    if (!DOMFileSystemBase::isValidType(fileSystemType)) {
70        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::INVALID_MODIFICATION_ERR));
71        return;
72    }
73
74    LocalFileSystem::localFileSystem().requestFileSystem(document, fileSystemType, size, FileSystemCallbacks::create(successCallback, errorCallback, document, fileSystemType), AsynchronousFileSystem);
75}
76
77void DOMWindowFileSystem::webkitResolveLocalFileSystemURL(DOMWindow* window, const String& url, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
78{
79    if (!window->isCurrentlyDisplayedInFrame())
80        return;
81
82    Document* document = window->document();
83    if (!document)
84        return;
85
86    SecurityOrigin* securityOrigin = document->securityOrigin();
87    KURL completedURL = document->completeURL(url);
88    if (!AsyncFileSystem::isAvailable() || !securityOrigin->canAccessFileSystem() || !securityOrigin->canRequest(completedURL)) {
89        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SECURITY_ERR));
90        return;
91    }
92
93    FileSystemType type;
94    String filePath;
95    if (!completedURL.isValid() || !DOMFileSystemBase::crackFileSystemURL(completedURL, type, filePath)) {
96        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::ENCODING_ERR));
97        return;
98    }
99
100    LocalFileSystem::localFileSystem().readFileSystem(document, type, ResolveURICallbacks::create(successCallback, errorCallback, document, type, filePath));
101}
102
103COMPILE_ASSERT(static_cast<int>(DOMWindowFileSystem::TEMPORARY) == static_cast<int>(FileSystemTypeTemporary), enum_mismatch);
104COMPILE_ASSERT(static_cast<int>(DOMWindowFileSystem::PERSISTENT) == static_cast<int>(FileSystemTypePersistent), enum_mismatch);
105
106} // namespace WebCore
107
108#endif // ENABLE(FILE_SYSTEM)
109