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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 // Provides global database of differential decompression dictionaries for the | 5 // Provides global database of differential decompression dictionaries for the |
6 // SDCH filter (processes sdch enconded content). | 6 // SDCH filter (processes sdch enconded content). |
7 | 7 |
8 // Exactly one instance of SdchManager is built, and all references are made | 8 // Exactly one instance of SdchManager is built, and all references are made |
9 // into that collection. | 9 // into that collection. |
10 // | 10 // |
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104 | 104 |
105 private: | 105 private: |
106 friend class SdchManager; // Only manager can construct an instance. | 106 friend class SdchManager; // Only manager can construct an instance. |
107 | 107 |
108 // Construct a vc-diff usable dictionary from the dictionary_text starting | 108 // Construct a vc-diff usable dictionary from the dictionary_text starting |
109 // at the given offset. The supplied client_hash should be used to | 109 // at the given offset. The supplied client_hash should be used to |
110 // advertise the dictionary's availability relative to the suppplied URL. | 110 // advertise the dictionary's availability relative to the suppplied URL. |
111 Dictionary(const std::string& dictionary_text, size_t offset, | 111 Dictionary(const std::string& dictionary_text, size_t offset, |
112 const std::string& client_hash, const GURL& url, | 112 const std::string& client_hash, const GURL& url, |
113 const std::string& domain, const std::string& path, | 113 const std::string& domain, const std::string& path, |
114 const Time& expiration, const std::set<int> ports); | 114 const base::Time& expiration, const std::set<int> ports); |
115 | 115 |
116 const GURL& url() const { return url_; } | 116 const GURL& url() const { return url_; } |
117 const std::string& client_hash() const { return client_hash_; } | 117 const std::string& client_hash() const { return client_hash_; } |
118 | 118 |
119 // Security method to check if we can advertise this dictionary for use | 119 // Security method to check if we can advertise this dictionary for use |
120 // if the |target_url| returns SDCH compressed data. | 120 // if the |target_url| returns SDCH compressed data. |
121 bool CanAdvertise(const GURL& target_url); | 121 bool CanAdvertise(const GURL& target_url); |
122 | 122 |
123 // Security methods to check if we can establish a new dictionary with the | 123 // Security methods to check if we can establish a new dictionary with the |
124 // given data, that arrived in response to get of dictionary_url. | 124 // given data, that arrived in response to get of dictionary_url. |
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146 | 146 |
147 // The GURL that arrived with the text_ in a URL request to specify where | 147 // The GURL that arrived with the text_ in a URL request to specify where |
148 // this dictionary may be used. | 148 // this dictionary may be used. |
149 const GURL url_; | 149 const GURL url_; |
150 | 150 |
151 // Metadate "headers" in before dictionary text contained the following: | 151 // Metadate "headers" in before dictionary text contained the following: |
152 // Each dictionary payload consists of several headers, followed by the text | 152 // Each dictionary payload consists of several headers, followed by the text |
153 // of the dictionary. The following are the known headers. | 153 // of the dictionary. The following are the known headers. |
154 const std::string domain_; | 154 const std::string domain_; |
155 const std::string path_; | 155 const std::string path_; |
156 const Time expiration_; // Implied by max-age. | 156 const base::Time expiration_; // Implied by max-age. |
157 const std::set<int> ports_; | 157 const std::set<int> ports_; |
158 | 158 |
159 DISALLOW_COPY_AND_ASSIGN(Dictionary); | 159 DISALLOW_COPY_AND_ASSIGN(Dictionary); |
160 }; | 160 }; |
161 | 161 |
162 SdchManager(); | 162 SdchManager(); |
163 ~SdchManager(); | 163 ~SdchManager(); |
164 | 164 |
165 // Provide access to the single instance of this class. | 165 // Provide access to the single instance of this class. |
166 static SdchManager* Global(); | 166 static SdchManager* Global(); |
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249 // domain is supported. | 249 // domain is supported. |
250 std::string supported_domain_; | 250 std::string supported_domain_; |
251 | 251 |
252 // List domains where decode failures have required disabling sdch. | 252 // List domains where decode failures have required disabling sdch. |
253 std::set<std::string> blacklisted_domains_; | 253 std::set<std::string> blacklisted_domains_; |
254 | 254 |
255 DISALLOW_COPY_AND_ASSIGN(SdchManager); | 255 DISALLOW_COPY_AND_ASSIGN(SdchManager); |
256 }; | 256 }; |
257 | 257 |
258 #endif // NET_BASE_SDCH_MANAGER_H_ | 258 #endif // NET_BASE_SDCH_MANAGER_H_ |
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