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 "BlobURL.h"
30#include "FileMetadata.h"
31#include "FileSystem.h"
32#include "MIMETypeRegistry.h"
33#include "ThreadableBlobRegistry.h"
34#include <wtf/CurrentTime.h>
35#include <wtf/DateMath.h>
36#include <wtf/text/WTFString.h>
37
38namespace WebCore {
39
40File::File(const String& path)
41    : Blob(uninitializedContructor)
42    , m_path(path)
43{
44    m_internalURL = BlobURL::createInternalURL();
45    m_size = -1;
46    computeNameAndContentType(m_path, String(), m_name, m_type);
47    ThreadableBlobRegistry::registerFileBlobURL(m_internalURL, path, m_type);
48}
49
50File::File(const String& path, const String& nameOverride)
51    : Blob(uninitializedContructor)
52    , m_path(path)
53{
54    m_internalURL = BlobURL::createInternalURL();
55    m_size = -1;
56    computeNameAndContentType(m_path, nameOverride, m_name, m_type);
57    ThreadableBlobRegistry::registerFileBlobURL(m_internalURL, path, m_type);
58}
59
60File::File(DeserializationContructor, const String& path, const URL& url, const String& type, const String& name)
61    : Blob(deserializationContructor, url, type, -1)
62    , m_path(path)
63    , m_name(name)
64{
65}
66
67double File::lastModifiedDate() const
68{
69    time_t modificationTime;
70    if (getFileModificationTime(m_path, modificationTime) && isValidFileTime(modificationTime))
71        return modificationTime * msPerSecond;
72
73    return currentTime() * msPerSecond;
74}
75
76void File::computeNameAndContentType(const String& path, const String& nameOverride, String& effectiveName, String& effectiveContentType)
77{
78#if ENABLE(FILE_REPLACEMENT)
79    if (shouldReplaceFile(path)) {
80        computeNameAndContentTypeForReplacedFile(path, nameOverride, effectiveName, effectiveContentType);
81        return;
82    }
83#endif
84    effectiveName = nameOverride.isNull() ? pathGetFileName(path) : nameOverride;
85    size_t index = effectiveName.reverseFind('.');
86    if (index != notFound)
87        effectiveContentType = MIMETypeRegistry::getMIMETypeForExtension(effectiveName.substring(index + 1));
88}
89
90String File::contentTypeForFile(const String& path)
91{
92    String name;
93    String type;
94    computeNameAndContentType(path, String(), name, type);
95
96    return type;
97}
98
99} // namespace WebCore
100