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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #ifndef WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ | 5 #ifndef WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ |
6 #define WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ | 6 #define WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <set> | 9 #include <set> |
10 #include <string> | 10 #include <string> |
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27 namespace base { | 27 namespace base { |
28 class SequencedTaskRunner; | 28 class SequencedTaskRunner; |
29 class TimeTicks; | 29 class TimeTicks; |
30 } | 30 } |
31 | 31 |
32 namespace content { | 32 namespace content { |
33 class ObfuscatedFileUtilTest; | 33 class ObfuscatedFileUtilTest; |
34 class QuotaBackendImplTest; | 34 class QuotaBackendImplTest; |
35 } | 35 } |
36 | 36 |
37 namespace quota { | 37 namespace storage { |
38 class SpecialStoragePolicy; | 38 class SpecialStoragePolicy; |
39 } | 39 } |
40 | 40 |
41 class GURL; | 41 class GURL; |
42 | 42 |
43 namespace fileapi { | 43 namespace storage { |
44 | 44 |
45 class FileSystemOperationContext; | 45 class FileSystemOperationContext; |
46 class SandboxOriginDatabaseInterface; | 46 class SandboxOriginDatabaseInterface; |
47 class TimedTaskHelper; | 47 class TimedTaskHelper; |
48 | 48 |
49 // This file util stores directory information in LevelDB to obfuscate | 49 // This file util stores directory information in LevelDB to obfuscate |
50 // and to neutralize virtual file paths given by arbitrary apps. | 50 // and to neutralize virtual file paths given by arbitrary apps. |
51 // Files are stored with two-level isolation: per-origin and per-type. | 51 // Files are stored with two-level isolation: per-origin and per-type. |
52 // The isolation is done by storing data in separate directory partitions. | 52 // The isolation is done by storing data in separate directory partitions. |
53 // For example, a file in Temporary file system for origin 'www.example.com' | 53 // For example, a file in Temporary file system for origin 'www.example.com' |
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94 // to provide per-type isolation in the sandboxed filesystem directory. | 94 // to provide per-type isolation in the sandboxed filesystem directory. |
95 // Note that this method is called on file_task_runner. | 95 // Note that this method is called on file_task_runner. |
96 // | 96 // |
97 // |known_type_strings| are known type string names that this file system | 97 // |known_type_strings| are known type string names that this file system |
98 // should care about. | 98 // should care about. |
99 // This info is used to determine whether we could delete the entire | 99 // This info is used to determine whether we could delete the entire |
100 // origin directory or not in DeleteDirectoryForOriginAndType. If no directory | 100 // origin directory or not in DeleteDirectoryForOriginAndType. If no directory |
101 // for any known type exists the origin directory may get deleted when | 101 // for any known type exists the origin directory may get deleted when |
102 // one origin/type pair is deleted. | 102 // one origin/type pair is deleted. |
103 // | 103 // |
104 ObfuscatedFileUtil( | 104 ObfuscatedFileUtil(storage::SpecialStoragePolicy* special_storage_policy, |
105 quota::SpecialStoragePolicy* special_storage_policy, | 105 const base::FilePath& file_system_directory, |
106 const base::FilePath& file_system_directory, | 106 leveldb::Env* env_override, |
107 leveldb::Env* env_override, | 107 base::SequencedTaskRunner* file_task_runner, |
108 base::SequencedTaskRunner* file_task_runner, | 108 const GetTypeStringForURLCallback& get_type_string_for_url, |
109 const GetTypeStringForURLCallback& get_type_string_for_url, | 109 const std::set<std::string>& known_type_strings, |
110 const std::set<std::string>& known_type_strings, | 110 SandboxFileSystemBackendDelegate* sandbox_delegate); |
111 SandboxFileSystemBackendDelegate* sandbox_delegate); | |
112 virtual ~ObfuscatedFileUtil(); | 111 virtual ~ObfuscatedFileUtil(); |
113 | 112 |
114 // FileSystemFileUtil overrides. | 113 // FileSystemFileUtil overrides. |
115 virtual base::File CreateOrOpen( | 114 virtual base::File CreateOrOpen( |
116 FileSystemOperationContext* context, | 115 FileSystemOperationContext* context, |
117 const FileSystemURL& url, | 116 const FileSystemURL& url, |
118 int file_flags) OVERRIDE; | 117 int file_flags) OVERRIDE; |
119 virtual base::File::Error EnsureFileExists( | 118 virtual base::File::Error EnsureFileExists( |
120 FileSystemOperationContext* context, | 119 FileSystemOperationContext* context, |
121 const FileSystemURL& url, bool* created) OVERRIDE; | 120 const FileSystemURL& url, bool* created) OVERRIDE; |
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154 virtual base::File::Error CopyInForeignFile( | 153 virtual base::File::Error CopyInForeignFile( |
155 FileSystemOperationContext* context, | 154 FileSystemOperationContext* context, |
156 const base::FilePath& src_file_path, | 155 const base::FilePath& src_file_path, |
157 const FileSystemURL& dest_url) OVERRIDE; | 156 const FileSystemURL& dest_url) OVERRIDE; |
158 virtual base::File::Error DeleteFile( | 157 virtual base::File::Error DeleteFile( |
159 FileSystemOperationContext* context, | 158 FileSystemOperationContext* context, |
160 const FileSystemURL& url) OVERRIDE; | 159 const FileSystemURL& url) OVERRIDE; |
161 virtual base::File::Error DeleteDirectory( | 160 virtual base::File::Error DeleteDirectory( |
162 FileSystemOperationContext* context, | 161 FileSystemOperationContext* context, |
163 const FileSystemURL& url) OVERRIDE; | 162 const FileSystemURL& url) OVERRIDE; |
164 virtual webkit_blob::ScopedFile CreateSnapshotFile( | 163 virtual storage::ScopedFile CreateSnapshotFile( |
165 FileSystemOperationContext* context, | 164 FileSystemOperationContext* context, |
166 const FileSystemURL& url, | 165 const FileSystemURL& url, |
167 base::File::Error* error, | 166 base::File::Error* error, |
168 base::File::Info* file_info, | 167 base::File::Info* file_info, |
169 base::FilePath* platform_path) OVERRIDE; | 168 base::FilePath* platform_path) OVERRIDE; |
170 | 169 |
171 // Same as the other CreateFileEnumerator, but with recursive support. | 170 // Same as the other CreateFileEnumerator, but with recursive support. |
172 scoped_ptr<AbstractFileEnumerator> CreateFileEnumerator( | 171 scoped_ptr<AbstractFileEnumerator> CreateFileEnumerator( |
173 FileSystemOperationContext* context, | 172 FileSystemOperationContext* context, |
174 const FileSystemURL& root_url, | 173 const FileSystemURL& root_url, |
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230 typedef SandboxDirectoryDatabase::FileInfo FileInfo; | 229 typedef SandboxDirectoryDatabase::FileInfo FileInfo; |
231 | 230 |
232 friend class ObfuscatedFileEnumerator; | 231 friend class ObfuscatedFileEnumerator; |
233 friend class content::ObfuscatedFileUtilTest; | 232 friend class content::ObfuscatedFileUtilTest; |
234 friend class content::QuotaBackendImplTest; | 233 friend class content::QuotaBackendImplTest; |
235 | 234 |
236 // Helper method to create an obfuscated file util for regular | 235 // Helper method to create an obfuscated file util for regular |
237 // (temporary, persistent) file systems. Used only for testing. | 236 // (temporary, persistent) file systems. Used only for testing. |
238 // Note: this is implemented in sandbox_file_system_backend_delegate.cc. | 237 // Note: this is implemented in sandbox_file_system_backend_delegate.cc. |
239 static ObfuscatedFileUtil* CreateForTesting( | 238 static ObfuscatedFileUtil* CreateForTesting( |
240 quota::SpecialStoragePolicy* special_storage_policy, | 239 storage::SpecialStoragePolicy* special_storage_policy, |
241 const base::FilePath& file_system_directory, | 240 const base::FilePath& file_system_directory, |
242 leveldb::Env* env_override, | 241 leveldb::Env* env_override, |
243 base::SequencedTaskRunner* file_task_runner); | 242 base::SequencedTaskRunner* file_task_runner); |
244 | 243 |
245 base::FilePath GetDirectoryForURL( | 244 base::FilePath GetDirectoryForURL( |
246 const FileSystemURL& url, | 245 const FileSystemURL& url, |
247 bool create, | 246 bool create, |
248 base::File::Error* error_code); | 247 base::File::Error* error_code); |
249 | 248 |
250 // This just calls get_type_string_for_url_ callback that is given in ctor. | 249 // This just calls get_type_string_for_url_ callback that is given in ctor. |
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329 base::File CreateOrOpenInternal( | 328 base::File CreateOrOpenInternal( |
330 FileSystemOperationContext* context, | 329 FileSystemOperationContext* context, |
331 const FileSystemURL& url, | 330 const FileSystemURL& url, |
332 int file_flags); | 331 int file_flags); |
333 | 332 |
334 bool HasIsolatedStorage(const GURL& origin); | 333 bool HasIsolatedStorage(const GURL& origin); |
335 | 334 |
336 typedef std::map<std::string, SandboxDirectoryDatabase*> DirectoryMap; | 335 typedef std::map<std::string, SandboxDirectoryDatabase*> DirectoryMap; |
337 DirectoryMap directories_; | 336 DirectoryMap directories_; |
338 scoped_ptr<SandboxOriginDatabaseInterface> origin_database_; | 337 scoped_ptr<SandboxOriginDatabaseInterface> origin_database_; |
339 scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_; | 338 scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy_; |
340 base::FilePath file_system_directory_; | 339 base::FilePath file_system_directory_; |
341 leveldb::Env* env_override_; | 340 leveldb::Env* env_override_; |
342 | 341 |
343 // Used to delete database after a certain period of inactivity. | 342 // Used to delete database after a certain period of inactivity. |
344 int64 db_flush_delay_seconds_; | 343 int64 db_flush_delay_seconds_; |
345 | 344 |
346 scoped_refptr<base::SequencedTaskRunner> file_task_runner_; | 345 scoped_refptr<base::SequencedTaskRunner> file_task_runner_; |
347 scoped_ptr<TimedTaskHelper> timer_; | 346 scoped_ptr<TimedTaskHelper> timer_; |
348 | 347 |
349 GetTypeStringForURLCallback get_type_string_for_url_; | 348 GetTypeStringForURLCallback get_type_string_for_url_; |
350 std::set<std::string> known_type_strings_; | 349 std::set<std::string> known_type_strings_; |
351 | 350 |
352 // Not owned. | 351 // Not owned. |
353 SandboxFileSystemBackendDelegate* sandbox_delegate_; | 352 SandboxFileSystemBackendDelegate* sandbox_delegate_; |
354 | 353 |
355 DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileUtil); | 354 DISALLOW_COPY_AND_ASSIGN(ObfuscatedFileUtil); |
356 }; | 355 }; |
357 | 356 |
358 } // namespace fileapi | 357 } // namespace storage |
359 | 358 |
360 #endif // WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ | 359 #endif // WEBKIT_BROWSER_FILEAPI_OBFUSCATED_FILE_UTIL_H_ |
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