1
2/*
3 * Copyright (C) 2017 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "CacheStorageConnection.h"
29
30#include "FetchResponse.h"
31#include <wtf/RandomNumber.h>
32
33namespace WebCore {
34using namespace WebCore::DOMCacheEngine;
35
36void CacheStorageConnection::clearPendingRequests()
37{
38 auto openAndRemoveCachePendingRequests = WTFMove(m_openAndRemoveCachePendingRequests);
39 for (auto& callback : openAndRemoveCachePendingRequests.values())
40 callback(makeUnexpected(DOMCacheEngine::Error::Stopped));
41
42 auto retrieveCachesPendingRequests = WTFMove(m_retrieveCachesPendingRequests);
43 for (auto& callback : retrieveCachesPendingRequests.values())
44 callback(makeUnexpected(DOMCacheEngine::Error::Stopped));
45
46 auto retrieveRecordsPendingRequests = WTFMove(m_retrieveRecordsPendingRequests);
47 for (auto& callback : retrieveRecordsPendingRequests.values())
48 callback(makeUnexpected(DOMCacheEngine::Error::Stopped));
49
50 auto batchDeleteAndPutPendingRequests = WTFMove(m_batchDeleteAndPutPendingRequests);
51 for (auto& callback : batchDeleteAndPutPendingRequests.values())
52 callback(makeUnexpected(DOMCacheEngine::Error::Stopped));
53}
54
55void CacheStorageConnection::open(const ClientOrigin& origin, const String& cacheName, CacheIdentifierCallback&& callback)
56{
57 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
58 m_openAndRemoveCachePendingRequests.add(requestIdentifier, WTFMove(callback));
59
60 doOpen(requestIdentifier, origin, cacheName);
61}
62
63void CacheStorageConnection::remove(uint64_t cacheIdentifier, CacheIdentifierCallback&& callback)
64{
65 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
66 m_openAndRemoveCachePendingRequests.add(requestIdentifier, WTFMove(callback));
67
68 doRemove(requestIdentifier, cacheIdentifier);
69}
70
71void CacheStorageConnection::retrieveCaches(const ClientOrigin& origin, uint64_t updateCounter, CacheInfosCallback&& callback)
72{
73 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
74 m_retrieveCachesPendingRequests.add(requestIdentifier, WTFMove(callback));
75
76 doRetrieveCaches(requestIdentifier, origin, updateCounter);
77}
78
79void CacheStorageConnection::retrieveRecords(uint64_t cacheIdentifier, const URL& url, RecordsCallback&& callback)
80{
81 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
82 m_retrieveRecordsPendingRequests.add(requestIdentifier, WTFMove(callback));
83
84 doRetrieveRecords(requestIdentifier, cacheIdentifier, url);
85}
86
87void CacheStorageConnection::batchDeleteOperation(uint64_t cacheIdentifier, const ResourceRequest& request, CacheQueryOptions&& options, RecordIdentifiersCallback&& callback)
88{
89 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
90 m_batchDeleteAndPutPendingRequests.add(requestIdentifier, WTFMove(callback));
91
92 doBatchDeleteOperation(requestIdentifier, cacheIdentifier, request, WTFMove(options));
93}
94
95static inline uint64_t computeRealBodySize(const DOMCacheEngine::ResponseBody& body)
96{
97 uint64_t result = 0;
98 WTF::switchOn(body, [&] (const Ref<WebCore::FormData>& formData) {
99 result = formData->lengthInBytes();
100 }, [&] (const Ref<WebCore::SharedBuffer>& buffer) {
101 result = buffer->size();
102 }, [] (const std::nullptr_t&) {
103 });
104 return result;
105}
106
107uint64_t CacheStorageConnection::computeRecordBodySize(const FetchResponse& response, const DOMCacheEngine::ResponseBody& body)
108{
109 if (!response.opaqueLoadIdentifier()) {
110 ASSERT(response.tainting() != ResourceResponse::Tainting::Opaque);
111 return computeRealBodySize(body);
112 }
113
114 return m_opaqueResponseToSizeWithPaddingMap.ensure(response.opaqueLoadIdentifier(), [&] () {
115 uint64_t realSize = computeRealBodySize(body);
116
117 // Padding the size as per https://github.com/whatwg/storage/issues/31.
118 uint64_t sizeWithPadding = realSize + static_cast<uint64_t>(randomNumber() * 128000);
119 sizeWithPadding = ((sizeWithPadding / 32000) + 1) * 32000;
120
121 m_opaqueResponseToSizeWithPaddingMap.set(response.opaqueLoadIdentifier(), sizeWithPadding);
122 return sizeWithPadding;
123 }).iterator->value;
124}
125
126void CacheStorageConnection::batchPutOperation(uint64_t cacheIdentifier, Vector<Record>&& records, RecordIdentifiersCallback&& callback)
127{
128 uint64_t requestIdentifier = ++m_lastRequestIdentifier;
129 m_batchDeleteAndPutPendingRequests.add(requestIdentifier, WTFMove(callback));
130
131 doBatchPutOperation(requestIdentifier, cacheIdentifier, WTFMove(records));
132}
133
134void CacheStorageConnection::openOrRemoveCompleted(uint64_t requestIdentifier, const CacheIdentifierOrError& result)
135{
136 if (auto callback = m_openAndRemoveCachePendingRequests.take(requestIdentifier))
137 callback(result);
138}
139
140void CacheStorageConnection::updateCaches(uint64_t requestIdentifier, CacheInfosOrError&& result)
141{
142 if (auto callback = m_retrieveCachesPendingRequests.take(requestIdentifier))
143 callback(WTFMove(result));
144}
145
146void CacheStorageConnection::updateRecords(uint64_t requestIdentifier, RecordsOrError&& result)
147{
148 if (auto callback = m_retrieveRecordsPendingRequests.take(requestIdentifier))
149 callback(WTFMove(result));
150}
151
152void CacheStorageConnection::deleteRecordsCompleted(uint64_t requestIdentifier, Expected<Vector<uint64_t>, Error>&& result)
153{
154 if (auto callback = m_batchDeleteAndPutPendingRequests.take(requestIdentifier))
155 callback(WTFMove(result));
156}
157
158void CacheStorageConnection::putRecordsCompleted(uint64_t requestIdentifier, Expected<Vector<uint64_t>, Error>&& result)
159{
160 if (auto callback = m_batchDeleteAndPutPendingRequests.take(requestIdentifier))
161 callback(WTFMove(result));
162}
163
164} // namespace WebCore
165