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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 // Helper class which handles communication with the SafeBrowsing backends for | 5 // Helper class which handles communication with the SafeBrowsing backends for |
6 // client-side phishing detection. This class is used to fetch the client-side | 6 // client-side phishing detection. This class is used to fetch the client-side |
7 // model and send it to all renderers. This class is also used to send a ping | 7 // model and send it to all renderers. This class is also used to send a ping |
8 // back to Google to verify if a particular site is really phishing or not. | 8 // back to Google to verify if a particular site is really phishing or not. |
9 // | 9 // |
10 // This class is not thread-safe and expects all calls to be made on the UI | 10 // This class is not thread-safe and expects all calls to be made on the UI |
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162 virtual void EndFetchModel(ClientModelStatus status); // Virtual for testing. | 162 virtual void EndFetchModel(ClientModelStatus status); // Virtual for testing. |
163 | 163 |
164 private: | 164 private: |
165 friend class ClientSideDetectionServiceTest; | 165 friend class ClientSideDetectionServiceTest; |
166 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, FetchModelTest); | 166 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, FetchModelTest); |
167 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, SetBadSubnets); | 167 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, SetBadSubnets); |
168 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, | 168 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, |
169 SetEnabledAndRefreshState); | 169 SetEnabledAndRefreshState); |
170 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, IsBadIpAddress); | 170 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, IsBadIpAddress); |
171 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, | 171 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, |
172 IsFalsePositiveResponse); | |
173 FRIEND_TEST_ALL_PREFIXES(ClientSideDetectionServiceTest, | |
174 ModelHasValidHashIds); | 172 ModelHasValidHashIds); |
175 | 173 |
176 // CacheState holds all information necessary to respond to a caller without | 174 // CacheState holds all information necessary to respond to a caller without |
177 // actually making a HTTP request. | 175 // actually making a HTTP request. |
178 struct CacheState { | 176 struct CacheState { |
179 bool is_phishing; | 177 bool is_phishing; |
180 base::Time timestamp; | 178 base::Time timestamp; |
181 | 179 |
182 CacheState(bool phish, base::Time time); | 180 CacheState(bool phish, base::Time time); |
183 }; | 181 }; |
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246 // |bad_subnets| for faster lookups. This method is static to simplify | 244 // |bad_subnets| for faster lookups. This method is static to simplify |
247 // testing. | 245 // testing. |
248 static void SetBadSubnets(const ClientSideModel& model, | 246 static void SetBadSubnets(const ClientSideModel& model, |
249 BadSubnetMap* bad_subnets); | 247 BadSubnetMap* bad_subnets); |
250 | 248 |
251 | 249 |
252 // Returns true iff all the hash id's in the client-side model point to | 250 // Returns true iff all the hash id's in the client-side model point to |
253 // valid hashes in the model. | 251 // valid hashes in the model. |
254 static bool ModelHasValidHashIds(const ClientSideModel& model); | 252 static bool ModelHasValidHashIds(const ClientSideModel& model); |
255 | 253 |
256 // Returns true iff the response is phishing (phishy() is true) and if the | |
257 // given URL matches one of the whitelisted expressions in the given | |
258 // ClientPhishingResponse. | |
259 static bool IsFalsePositiveResponse(const GURL& url, | |
260 const ClientPhishingResponse& response); | |
261 | |
262 // Whether the service is running or not. When the service is not running, | 254 // Whether the service is running or not. When the service is not running, |
263 // it won't download the model nor report detected phishing URLs. | 255 // it won't download the model nor report detected phishing URLs. |
264 bool enabled_; | 256 bool enabled_; |
265 | 257 |
266 std::string model_str_; | 258 std::string model_str_; |
267 scoped_ptr<ClientSideModel> model_; | 259 scoped_ptr<ClientSideModel> model_; |
268 scoped_ptr<base::TimeDelta> model_max_age_; | 260 scoped_ptr<base::TimeDelta> model_max_age_; |
269 scoped_ptr<content::URLFetcher> model_fetcher_; | 261 scoped_ptr<content::URLFetcher> model_fetcher_; |
270 | 262 |
271 // Map of client report phishing request to the corresponding callback that | 263 // Map of client report phishing request to the corresponding callback that |
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301 // this map to speed up lookups. | 293 // this map to speed up lookups. |
302 BadSubnetMap bad_subnets_; | 294 BadSubnetMap bad_subnets_; |
303 | 295 |
304 content::NotificationRegistrar registrar_; | 296 content::NotificationRegistrar registrar_; |
305 | 297 |
306 DISALLOW_COPY_AND_ASSIGN(ClientSideDetectionService); | 298 DISALLOW_COPY_AND_ASSIGN(ClientSideDetectionService); |
307 }; | 299 }; |
308 } // namepsace safe_browsing | 300 } // namepsace safe_browsing |
309 | 301 |
310 #endif // CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_SERVICE_H_ | 302 #endif // CHROME_BROWSER_SAFE_BROWSING_CLIENT_SIDE_DETECTION_SERVICE_H_ |
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