1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Copyright (C) 2008 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "File.h"
#include "FileMetadata.h"
#include "FileSystem.h"
#include "MIMETypeRegistry.h"
#include <wtf/CurrentTime.h>
#include <wtf/DateMath.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
static String getContentTypeFromFileName(const String& name, File::ContentTypeLookupPolicy policy)
{
String type;
int index = name.reverseFind('.');
if (index != -1) {
if (policy == File::WellKnownContentTypes)
type = MIMETypeRegistry::getWellKnownMIMETypeForExtension(name.substring(index + 1));
else {
ASSERT(policy == File::AllContentTypes);
type = MIMETypeRegistry::getMIMETypeForExtension(name.substring(index + 1));
}
}
return type;
}
static std::unique_ptr<BlobData> createBlobDataForFileWithType(const String& path, const String& contentType)
{
auto blobData = std::make_unique<BlobData>();
ASSERT(Blob::isNormalizedContentType(contentType));
blobData->setContentType(contentType);
blobData->appendFile(path);
return blobData;
}
static std::unique_ptr<BlobData> createBlobDataForFile(const String& path, File::ContentTypeLookupPolicy policy)
{
return createBlobDataForFileWithType(path, getContentTypeFromFileName(path, policy));
}
static std::unique_ptr<BlobData> createBlobDataForFileWithName(const String& path, const String& fileSystemName, File::ContentTypeLookupPolicy policy)
{
return createBlobDataForFileWithType(path, getContentTypeFromFileName(fileSystemName, policy));
}
#if ENABLE(DIRECTORY_UPLOAD)
PassRefPtr<File> File::createWithRelativePath(const String& path, const String& relativePath)
{
RefPtr<File> file = adoptRef(new File(path, AllContentTypes));
file->m_relativePath = relativePath;
return file.release();
}
#endif
File::File(const String& path, ContentTypeLookupPolicy policy)
: Blob(createBlobDataForFile(path, policy), -1)
, m_path(path)
, m_name(pathGetFileName(path))
{
}
File::File(const String& path, const URL& url, const String& type)
: Blob(url, type, -1)
, m_path(path)
{
m_name = pathGetFileName(path);
// FIXME: File object serialization/deserialization does not include
// newer file object data members: m_name and m_relativePath.
// See SerializedScriptValue.cpp
}
File::File(const String& path, const String& name, ContentTypeLookupPolicy policy)
: Blob(createBlobDataForFileWithName(path, name, policy), -1)
, m_path(path)
, m_name(name)
{
}
double File::lastModifiedDate() const
{
time_t modificationTime;
if (getFileModificationTime(m_path, modificationTime) && isValidFileTime(modificationTime))
return modificationTime * msPerSecond;
return currentTime() * msPerSecond;
}
unsigned long long File::size() const
{
// FIXME: JavaScript cannot represent sizes as large as unsigned long long, we need to
// come up with an exception to throw if file size is not representable.
long long size;
if (!getFileSize(m_path, size))
return 0;
return static_cast<unsigned long long>(size);
}
void File::captureSnapshot(long long& snapshotSize, double& snapshotModificationTime) const
{
// 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.
// If we fail to retrieve the size or modification time, probably due to that the file has been deleted, 0 size is returned.
FileMetadata metadata;
if (!getFileMetadata(m_path, metadata)) {
snapshotSize = 0;
snapshotModificationTime = invalidFileTime();
return;
}
snapshotSize = metadata.length;
snapshotModificationTime = metadata.modificationTime;
}
} // namespace WebCore
|
