1/*
2 * Copyright (C) 2008, 2013 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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "ArchiveFactory.h"
31
32#include "MIMETypeRegistry.h"
33
34#if ENABLE(WEB_ARCHIVE) && USE(CF)
35#include "LegacyWebArchive.h"
36#endif
37#if ENABLE(MHTML)
38#include "MHTMLArchive.h"
39#endif
40
41#include <wtf/HashMap.h>
42#include <wtf/HashSet.h>
43#include <wtf/NeverDestroyed.h>
44#include <wtf/StdLibExtras.h>
45#include <wtf/text/WTFString.h>
46
47namespace WebCore {
48
49typedef RefPtr<Archive> RawDataCreationFunction(const URL&, SharedBuffer&);
50typedef HashMap<String, RawDataCreationFunction*, ASCIICaseInsensitiveHash> ArchiveMIMETypesMap;
51
52// The create functions in the archive classes return RefPtr to concrete subclasses
53// of Archive. This adaptor makes the functions have a uniform return type.
54template<typename ArchiveClass> static RefPtr<Archive> archiveFactoryCreate(const URL& url, SharedBuffer& buffer)
55{
56 return ArchiveClass::create(url, buffer);
57}
58
59static ArchiveMIMETypesMap createArchiveMIMETypesMap()
60{
61 ArchiveMIMETypesMap map;
62
63#if ENABLE(WEB_ARCHIVE) && USE(CF)
64 map.add("application/x-webarchive"_s, archiveFactoryCreate<LegacyWebArchive>);
65#endif
66
67#if ENABLE(MHTML)
68 map.add("multipart/related"_s, archiveFactoryCreate<MHTMLArchive>);
69 map.add("application/x-mimearchive"_s, archiveFactoryCreate<MHTMLArchive>);
70#endif
71
72 return map;
73}
74
75static ArchiveMIMETypesMap& archiveMIMETypes()
76{
77 static NeverDestroyed<ArchiveMIMETypesMap> map = createArchiveMIMETypesMap();
78 return map;
79}
80
81bool ArchiveFactory::isArchiveMIMEType(const String& mimeType)
82{
83 return !mimeType.isEmpty() && archiveMIMETypes().contains(mimeType);
84}
85
86RefPtr<Archive> ArchiveFactory::create(const URL& url, SharedBuffer* data, const String& mimeType)
87{
88 if (!data)
89 return nullptr;
90 if (mimeType.isEmpty())
91 return nullptr;
92 auto* function = archiveMIMETypes().get(mimeType);
93 if (!function)
94 return nullptr;
95 return function(url, *data);
96}
97
98void ArchiveFactory::registerKnownArchiveMIMETypes(HashSet<String, ASCIICaseInsensitiveHash>& mimeTypes)
99{
100 for (auto& mimeType : archiveMIMETypes().keys())
101 mimeTypes.add(mimeType);
102}
103
104}
105