1/*
2 * Copyright (C) 2008 Apple 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
6 * are met:
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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "File.h"
28
29#include "FileSystem.h"
30#include "MIMETypeRegistry.h"
31#include <wtf/CurrentTime.h>
32#include <wtf/text/WTFString.h>
33
34namespace WebCore {
35
36static PassOwnPtr<BlobData> createBlobDataForFile(const String& path)
37{
38    String type;
39    int index = path.reverseFind('.');
40    if (index != -1)
41        type = MIMETypeRegistry::getMIMETypeForExtension(path.substring(index + 1));
42
43    OwnPtr<BlobData> blobData = BlobData::create();
44    blobData->setContentType(type);
45    blobData->appendFile(path);
46    return blobData.release();
47}
48
49File::File(const String& path)
50    : Blob(createBlobDataForFile(path), -1)
51    , m_path(path)
52    , m_name(pathGetFileName(path))
53{
54}
55
56File::File(const String& path, const KURL& url, const String& type)
57    : Blob(url, type, -1)
58    , m_path(path)
59{
60    m_name = pathGetFileName(path);
61}
62
63#if ENABLE(DIRECTORY_UPLOAD)
64File::File(const String& relativePath, const String& path)
65    : Blob(createBlobDataForFile(path), -1)
66    , m_path(path)
67    , m_relativePath(relativePath)
68{
69    m_name = pathGetFileName(path);
70}
71#endif
72
73double File::lastModifiedDate() const
74{
75    time_t modificationTime;
76    if (!getFileModificationTime(m_path, modificationTime))
77        return 0;
78
79    // Needs to return epoch time in milliseconds for Date.
80    return modificationTime * 1000.0;
81}
82
83unsigned long long File::size() const
84{
85    // FIXME: JavaScript cannot represent sizes as large as unsigned long long, we need to
86    // come up with an exception to throw if file size is not representable.
87    long long size;
88    if (!getFileSize(m_path, size))
89        return 0;
90    return static_cast<unsigned long long>(size);
91}
92
93void File::captureSnapshot(long long& snapshotSize, double& snapshotModificationTime) const
94{
95    // Obtains a snapshot of the file by capturing its current size and modification time. This is used when we slice a file for the first time.
96    // If we fail to retrieve the size or modification time, probably due to that the file has been deleted, 0 size is returned.
97    // FIXME: Combine getFileSize and getFileModificationTime into one file system call.
98    time_t modificationTime;
99    if (!getFileSize(m_path, snapshotSize) || !getFileModificationTime(m_path, modificationTime)) {
100        snapshotSize = 0;
101        snapshotModificationTime = 0;
102    } else
103        snapshotModificationTime = modificationTime;
104}
105
106} // namespace WebCore
107