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 *
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 Computer, 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/StdLibExtras.h>
44#include <wtf/text/WTFString.h>
45
46namespace WebCore {
47
48typedef PassRefPtr<Archive> RawDataCreationFunction(const KURL&, SharedBuffer*);
49typedef HashMap<String, RawDataCreationFunction*, CaseFoldingHash> ArchiveMIMETypesMap;
50
51// The create functions in the archive classes return PassRefPtr to concrete subclasses
52// of Archive. This adaptor makes the functions have a uniform return type.
53template <typename ArchiveClass> static PassRefPtr<Archive> archiveFactoryCreate(const KURL& url, SharedBuffer* buffer)
54{
55    return ArchiveClass::create(url, buffer);
56}
57
58static ArchiveMIMETypesMap& archiveMIMETypes()
59{
60    DEFINE_STATIC_LOCAL(ArchiveMIMETypesMap, mimeTypes, ());
61    static bool initialized = false;
62
63    if (initialized)
64        return mimeTypes;
65
66#if ENABLE(WEB_ARCHIVE) && USE(CF)
67    mimeTypes.set("application/x-webarchive", archiveFactoryCreate<LegacyWebArchive>);
68#endif
69#if ENABLE(MHTML)
70    mimeTypes.set("multipart/related", archiveFactoryCreate<MHTMLArchive>);
71    mimeTypes.set("application/x-mimearchive", archiveFactoryCreate<MHTMLArchive>);
72#endif
73
74    initialized = true;
75    return mimeTypes;
76}
77
78bool ArchiveFactory::isArchiveMimeType(const String& mimeType)
79{
80    return !mimeType.isEmpty() && archiveMIMETypes().contains(mimeType);
81}
82
83PassRefPtr<Archive> ArchiveFactory::create(const KURL& url, SharedBuffer* data, const String& mimeType)
84{
85    RawDataCreationFunction* function = mimeType.isEmpty() ? 0 : archiveMIMETypes().get(mimeType);
86    return function ? function(url, data) : PassRefPtr<Archive>(0);
87}
88
89void ArchiveFactory::registerKnownArchiveMIMETypes()
90{
91    HashSet<String>& mimeTypes = MIMETypeRegistry::getSupportedNonImageMIMETypes();
92    ArchiveMIMETypesMap::iterator i = archiveMIMETypes().begin();
93    ArchiveMIMETypesMap::iterator end = archiveMIMETypes().end();
94
95    for (; i != end; ++i)
96        mimeTypes.add(i->key);
97}
98
99}
100