1/*
2 * Copyright (C) 2017 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(SERVICE_WORKER)
29
30#include "DocumentIdentifier.h"
31#include "ServiceWorkerTypes.h"
32#include <wtf/text/StringConcatenateNumbers.h>
33
34namespace WebCore {
35
36struct ServiceWorkerClientIdentifier {
37 SWServerConnectionIdentifier serverConnectionIdentifier;
38 DocumentIdentifier contextIdentifier;
39
40 unsigned hash() const;
41
42 String toString() const { return makeString(serverConnectionIdentifier.toUInt64(), '-', contextIdentifier.toUInt64()); }
43 static Optional<ServiceWorkerClientIdentifier> fromString(StringView);
44
45 template<class Encoder> void encode(Encoder&) const;
46 template<class Decoder> static Optional<ServiceWorkerClientIdentifier> decode(Decoder&);
47};
48
49inline bool operator==(const ServiceWorkerClientIdentifier& a, const ServiceWorkerClientIdentifier& b)
50{
51 return a.serverConnectionIdentifier == b.serverConnectionIdentifier && a.contextIdentifier == b.contextIdentifier;
52}
53
54inline Optional<ServiceWorkerClientIdentifier> ServiceWorkerClientIdentifier::fromString(StringView string)
55{
56 ServiceWorkerClientIdentifier clientIdentifier;
57
58 unsigned counter = 0;
59 for (auto item : string.split('-')) {
60 auto identifier = item.toUInt64Strict();
61 if (!identifier || !*identifier)
62 return WTF::nullopt;
63 if (!counter++)
64 clientIdentifier.serverConnectionIdentifier = makeObjectIdentifier<SWServerConnectionIdentifierType>(identifier.value());
65 else if (counter == 2)
66 clientIdentifier.contextIdentifier = makeObjectIdentifier<DocumentIdentifierType>(identifier.value());
67 }
68 return (counter == 2) ? makeOptional(WTFMove(clientIdentifier)) : WTF::nullopt;
69}
70
71template<class Encoder>
72void ServiceWorkerClientIdentifier::encode(Encoder& encoder) const
73{
74 encoder << serverConnectionIdentifier << contextIdentifier;
75}
76
77template<class Decoder>
78Optional<ServiceWorkerClientIdentifier> ServiceWorkerClientIdentifier::decode(Decoder& decoder)
79{
80 Optional<SWServerConnectionIdentifier> serverConnectionIdentifier;
81 decoder >> serverConnectionIdentifier;
82 if (!serverConnectionIdentifier)
83 return WTF::nullopt;
84
85 Optional<DocumentIdentifier> contextIdentifier;
86 decoder >> contextIdentifier;
87 if (!contextIdentifier)
88 return WTF::nullopt;
89
90 return { { WTFMove(*serverConnectionIdentifier), WTFMove(*contextIdentifier) } };
91}
92
93inline unsigned ServiceWorkerClientIdentifier::hash() const
94{
95 unsigned hashes[2];
96 hashes[0] = WTF::intHash(serverConnectionIdentifier.toUInt64());
97 hashes[1] = WTF::intHash(contextIdentifier.toUInt64());
98
99 return StringHasher::hashMemory(hashes, sizeof(hashes));
100}
101
102} // namespace WebCore
103
104namespace WTF {
105
106struct ServiceWorkerClientIdentifierHash {
107 static unsigned hash(const WebCore::ServiceWorkerClientIdentifier& key) { return key.hash(); }
108 static bool equal(const WebCore::ServiceWorkerClientIdentifier& a, const WebCore::ServiceWorkerClientIdentifier& b) { return a == b; }
109 static const bool safeToCompareToEmptyOrDeleted = true;
110};
111
112template<> struct HashTraits<WebCore::ServiceWorkerClientIdentifier> : GenericHashTraits<WebCore::ServiceWorkerClientIdentifier> {
113 static WebCore::ServiceWorkerClientIdentifier emptyValue() { return { }; }
114
115 static void constructDeletedValue(WebCore::ServiceWorkerClientIdentifier& slot) { slot.serverConnectionIdentifier = makeObjectIdentifier<WebCore::SWServerConnectionIdentifierType>(std::numeric_limits<uint64_t>::max()); }
116
117 static bool isDeletedValue(const WebCore::ServiceWorkerClientIdentifier& slot) { return slot.serverConnectionIdentifier.toUInt64() == std::numeric_limits<uint64_t>::max(); }
118};
119
120template<> struct DefaultHash<WebCore::ServiceWorkerClientIdentifier> {
121 typedef ServiceWorkerClientIdentifierHash Hash;
122};
123
124}
125
126#endif // ENABLE(SERVICE_WORKER)
127