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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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