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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/spdy/hpack/hpack_decoder.h" | 5 #include "net/spdy/hpack/hpack_decoder.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/basictypes.h" | |
10 #include "base/logging.h" | 9 #include "base/logging.h" |
11 #include "net/spdy/hpack/hpack_constants.h" | 10 #include "net/spdy/hpack/hpack_constants.h" |
12 #include "net/spdy/hpack/hpack_output_stream.h" | 11 #include "net/spdy/hpack/hpack_output_stream.h" |
13 | 12 |
14 namespace net { | 13 namespace net { |
15 | 14 |
16 using base::StringPiece; | 15 using base::StringPiece; |
17 using std::string; | 16 using std::string; |
18 | 17 |
19 namespace { | 18 namespace { |
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124 // Implements 7.3: Header Table Size Update. | 123 // Implements 7.3: Header Table Size Update. |
125 if (input_stream->MatchPrefixAndConsume(kHeaderTableSizeUpdateOpcode)) { | 124 if (input_stream->MatchPrefixAndConsume(kHeaderTableSizeUpdateOpcode)) { |
126 return DecodeNextHeaderTableSizeUpdate(input_stream); | 125 return DecodeNextHeaderTableSizeUpdate(input_stream); |
127 } | 126 } |
128 // Unrecognized opcode. | 127 // Unrecognized opcode. |
129 return false; | 128 return false; |
130 } | 129 } |
131 | 130 |
132 bool HpackDecoder::DecodeNextHeaderTableSizeUpdate( | 131 bool HpackDecoder::DecodeNextHeaderTableSizeUpdate( |
133 HpackInputStream* input_stream) { | 132 HpackInputStream* input_stream) { |
134 uint32 size = 0; | 133 uint32_t size = 0; |
135 if (!input_stream->DecodeNextUint32(&size)) { | 134 if (!input_stream->DecodeNextUint32(&size)) { |
136 return false; | 135 return false; |
137 } | 136 } |
138 if (size > header_table_.settings_size_bound()) { | 137 if (size > header_table_.settings_size_bound()) { |
139 return false; | 138 return false; |
140 } | 139 } |
141 header_table_.SetMaxSize(size); | 140 header_table_.SetMaxSize(size); |
142 return true; | 141 return true; |
143 } | 142 } |
144 | 143 |
145 bool HpackDecoder::DecodeNextIndexedHeader(HpackInputStream* input_stream) { | 144 bool HpackDecoder::DecodeNextIndexedHeader(HpackInputStream* input_stream) { |
146 uint32 index = 0; | 145 uint32_t index = 0; |
147 if (!input_stream->DecodeNextUint32(&index)) { | 146 if (!input_stream->DecodeNextUint32(&index)) { |
148 return false; | 147 return false; |
149 } | 148 } |
150 | 149 |
151 const HpackEntry* entry = header_table_.GetByIndex(index); | 150 const HpackEntry* entry = header_table_.GetByIndex(index); |
152 if (entry == NULL) { | 151 if (entry == NULL) { |
153 return false; | 152 return false; |
154 } | 153 } |
155 | 154 |
156 return HandleHeaderRepresentation(entry->name(), entry->value()); | 155 return HandleHeaderRepresentation(entry->name(), entry->value()); |
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175 if (!should_index) { | 174 if (!should_index) { |
176 return true; | 175 return true; |
177 } | 176 } |
178 | 177 |
179 ignore_result(header_table_.TryAddEntry(name, value)); | 178 ignore_result(header_table_.TryAddEntry(name, value)); |
180 return true; | 179 return true; |
181 } | 180 } |
182 | 181 |
183 bool HpackDecoder::DecodeNextName(HpackInputStream* input_stream, | 182 bool HpackDecoder::DecodeNextName(HpackInputStream* input_stream, |
184 StringPiece* next_name) { | 183 StringPiece* next_name) { |
185 uint32 index_or_zero = 0; | 184 uint32_t index_or_zero = 0; |
186 if (!input_stream->DecodeNextUint32(&index_or_zero)) { | 185 if (!input_stream->DecodeNextUint32(&index_or_zero)) { |
187 return false; | 186 return false; |
188 } | 187 } |
189 | 188 |
190 if (index_or_zero == 0) { | 189 if (index_or_zero == 0) { |
191 return DecodeNextStringLiteral(input_stream, true, next_name); | 190 return DecodeNextStringLiteral(input_stream, true, next_name); |
192 } | 191 } |
193 | 192 |
194 const HpackEntry* entry = header_table_.GetByIndex(index_or_zero); | 193 const HpackEntry* entry = header_table_.GetByIndex(index_or_zero); |
195 if (entry == NULL) { | 194 if (entry == NULL) { |
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214 *output = StringPiece(*buffer); | 213 *output = StringPiece(*buffer); |
215 return result; | 214 return result; |
216 } | 215 } |
217 if (input_stream->MatchPrefixAndConsume(kStringLiteralIdentityEncoded)) { | 216 if (input_stream->MatchPrefixAndConsume(kStringLiteralIdentityEncoded)) { |
218 return input_stream->DecodeNextIdentityString(output); | 217 return input_stream->DecodeNextIdentityString(output); |
219 } | 218 } |
220 return false; | 219 return false; |
221 } | 220 } |
222 | 221 |
223 } // namespace net | 222 } // namespace net |
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