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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
/*
* Copyright (C) 2010, 2014-2015 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#ifndef NetworkCacheCoders_h
#define NetworkCacheCoders_h
#if ENABLE(NETWORK_CACHE)
#include "NetworkCacheDecoder.h"
#include "NetworkCacheEncoder.h"
#include <WebCore/CertificateInfo.h>
#include <utility>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/SHA1.h>
#include <wtf/Vector.h>
namespace WebKit {
namespace NetworkCache {
template<typename T, typename U> struct Coder<std::pair<T, U>> {
static void encode(Encoder& encoder, const std::pair<T, U>& pair)
{
encoder << pair.first << pair.second;
}
static bool decode(Decoder& decoder, std::pair<T, U>& pair)
{
T first;
if (!decoder.decode(first))
return false;
U second;
if (!decoder.decode(second))
return false;
pair.first = first;
pair.second = second;
return true;
}
};
template<typename Rep, typename Period> struct Coder<std::chrono::duration<Rep, Period>> {
static void encode(Encoder& encoder, const std::chrono::duration<Rep, Period>& duration)
{
static_assert(std::is_integral<Rep>::value && std::is_signed<Rep>::value && sizeof(Rep) <= sizeof(int64_t), "Serialization of this Rep type is not supported yet. Only signed integer type which can be fit in an int64_t is currently supported.");
encoder << static_cast<int64_t>(duration.count());
}
static bool decode(Decoder& decoder, std::chrono::duration<Rep, Period>& result)
{
int64_t count;
if (!decoder.decode(count))
return false;
result = std::chrono::duration<Rep, Period>(static_cast<Rep>(count));
return true;
}
};
template<typename KeyType, typename ValueType> struct Coder<WTF::KeyValuePair<KeyType, ValueType>> {
static void encode(Encoder& encoder, const WTF::KeyValuePair<KeyType, ValueType>& pair)
{
encoder << pair.key << pair.value;
}
static bool decode(Decoder& decoder, WTF::KeyValuePair<KeyType, ValueType>& pair)
{
KeyType key;
if (!decoder.decode(key))
return false;
ValueType value;
if (!decoder.decode(value))
return false;
pair.key = key;
pair.value = value;
return true;
}
};
template<bool fixedSizeElements, typename T, size_t inlineCapacity> struct VectorCoder;
template<typename T, size_t inlineCapacity> struct VectorCoder<false, T, inlineCapacity> {
static void encode(Encoder& encoder, const Vector<T, inlineCapacity>& vector)
{
encoder << static_cast<uint64_t>(vector.size());
for (size_t i = 0; i < vector.size(); ++i)
encoder << vector[i];
}
static bool decode(Decoder& decoder, Vector<T, inlineCapacity>& vector)
{
uint64_t size;
if (!decoder.decode(size))
return false;
Vector<T, inlineCapacity> tmp;
for (size_t i = 0; i < size; ++i) {
T element;
if (!decoder.decode(element))
return false;
tmp.append(WTFMove(element));
}
tmp.shrinkToFit();
vector.swap(tmp);
return true;
}
};
template<typename T, size_t inlineCapacity> struct VectorCoder<true, T, inlineCapacity> {
static void encode(Encoder& encoder, const Vector<T, inlineCapacity>& vector)
{
encoder << static_cast<uint64_t>(vector.size());
encoder.encodeFixedLengthData(reinterpret_cast<const uint8_t*>(vector.data()), vector.size() * sizeof(T), alignof(T));
}
static bool decode(Decoder& decoder, Vector<T, inlineCapacity>& vector)
{
uint64_t size;
if (!decoder.decode(size))
return false;
// Since we know the total size of the elements, we can allocate the vector in
// one fell swoop. Before allocating we must however make sure that the decoder buffer
// is big enough.
if (!decoder.bufferIsLargeEnoughToContain<T>(size))
return false;
Vector<T, inlineCapacity> temp;
temp.resize(size);
decoder.decodeFixedLengthData(reinterpret_cast<uint8_t*>(temp.data()), size * sizeof(T));
vector.swap(temp);
return true;
}
};
template<typename T, size_t inlineCapacity> struct Coder<Vector<T, inlineCapacity>> : VectorCoder<std::is_arithmetic<T>::value, T, inlineCapacity> { };
template<typename KeyArg, typename MappedArg, typename HashArg, typename KeyTraitsArg, typename MappedTraitsArg> struct Coder<HashMap<KeyArg, MappedArg, HashArg, KeyTraitsArg, MappedTraitsArg>> {
typedef HashMap<KeyArg, MappedArg, HashArg, KeyTraitsArg, MappedTraitsArg> HashMapType;
static void encode(Encoder& encoder, const HashMapType& hashMap)
{
encoder << static_cast<uint64_t>(hashMap.size());
for (typename HashMapType::const_iterator it = hashMap.begin(), end = hashMap.end(); it != end; ++it)
encoder << *it;
}
static bool decode(Decoder& decoder, HashMapType& hashMap)
{
uint64_t hashMapSize;
if (!decoder.decode(hashMapSize))
return false;
HashMapType tempHashMap;
for (uint64_t i = 0; i < hashMapSize; ++i) {
KeyArg key;
MappedArg value;
if (!decoder.decode(key))
return false;
if (!decoder.decode(value))
return false;
if (!tempHashMap.add(key, value).isNewEntry) {
// The hash map already has the specified key, bail.
return false;
}
}
hashMap.swap(tempHashMap);
return true;
}
};
template<typename KeyArg, typename HashArg, typename KeyTraitsArg> struct Coder<HashSet<KeyArg, HashArg, KeyTraitsArg>> {
typedef HashSet<KeyArg, HashArg, KeyTraitsArg> HashSetType;
static void encode(Encoder& encoder, const HashSetType& hashSet)
{
encoder << static_cast<uint64_t>(hashSet.size());
for (typename HashSetType::const_iterator it = hashSet.begin(), end = hashSet.end(); it != end; ++it)
encoder << *it;
}
static bool decode(Decoder& decoder, HashSetType& hashSet)
{
uint64_t hashSetSize;
if (!decoder.decode(hashSetSize))
return false;
HashSetType tempHashSet;
for (uint64_t i = 0; i < hashSetSize; ++i) {
KeyArg key;
if (!decoder.decode(key))
return false;
if (!tempHashSet.add(key).isNewEntry) {
// The hash map already has the specified key, bail.
return false;
}
}
hashSet.swap(tempHashSet);
return true;
}
};
template<> struct Coder<AtomicString> {
static void encode(Encoder&, const AtomicString&);
static bool decode(Decoder&, AtomicString&);
};
template<> struct Coder<CString> {
static void encode(Encoder&, const CString&);
static bool decode(Decoder&, CString&);
};
template<> struct Coder<String> {
static void encode(Encoder&, const String&);
static bool decode(Decoder&, String&);
};
template<> struct Coder<WebCore::CertificateInfo> {
static void encode(Encoder&, const WebCore::CertificateInfo&);
static bool decode(Decoder&, WebCore::CertificateInfo&);
};
template<> struct Coder<SHA1::Digest> {
static void encode(Encoder&, const SHA1::Digest&);
static bool decode(Decoder&, SHA1::Digest&);
};
}
}
#endif
#endif
|
