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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef WEBKIT_BROWSER_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_ | |
| 6 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_ | |
| 7 | |
| 8 #include <set> | |
| 9 #include <string> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/compiler_specific.h" | |
| 13 #include "base/files/file_path.h" | |
| 14 #include "base/memory/ref_counted.h" | |
| 15 #include "base/memory/scoped_ptr.h" | |
| 16 #include "base/memory/weak_ptr.h" | |
| 17 #include "url/gurl.h" | |
| 18 #include "webkit/browser/fileapi/file_system_mount_point_provider.h" | |
| 19 #include "webkit/browser/fileapi/file_system_options.h" | |
| 20 #include "webkit/browser/fileapi/file_system_quota_util.h" | |
| 21 #include "webkit/browser/fileapi/task_runner_bound_observer_list.h" | |
| 22 #include "webkit/browser/quota/special_storage_policy.h" | |
| 23 #include "webkit/browser/webkit_storage_browser_export.h" | |
| 24 | |
| 25 namespace base { | |
| 26 class SequencedTaskRunner; | |
| 27 } | |
| 28 | |
| 29 namespace quota { | |
| 30 class QuotaManagerProxy; | |
| 31 class SpecialStoragePolicy; | |
| 32 } | |
| 33 | |
| 34 namespace sync_file_system { | |
| 35 class CannedSyncableFileSystem; | |
| 36 class SyncableFileSystemOperation; | |
| 37 } | |
| 38 | |
| 39 namespace fileapi { | |
| 40 | |
| 41 class AsyncFileUtilAdapter; | |
| 42 class FileSystemUsageCache; | |
| 43 class LocalFileSystemOperation; | |
| 44 class ObfuscatedFileUtil; | |
| 45 class SandboxQuotaObserver; | |
| 46 | |
| 47 // An interface to construct or crack sandboxed filesystem paths for | |
| 48 // TEMPORARY or PERSISTENT filesystems, which are placed under the user's | |
| 49 // profile directory in a sandboxed way. | |
| 50 // This interface also lets one enumerate and remove storage for the origins | |
| 51 // that use the filesystem. | |
| 52 class WEBKIT_STORAGE_BROWSER_EXPORT SandboxMountPointProvider | |
| 53 : public FileSystemMountPointProvider, | |
| 54 public FileSystemQuotaUtil { | |
| 55 public: | |
| 56 // Origin enumerator interface. | |
| 57 // An instance of this interface is assumed to be called on the file thread. | |
| 58 class OriginEnumerator { | |
| 59 public: | |
| 60 virtual ~OriginEnumerator() {} | |
| 61 | |
| 62 // Returns the next origin. Returns empty if there are no more origins. | |
| 63 virtual GURL Next() = 0; | |
| 64 | |
| 65 // Returns the current origin's information. | |
| 66 virtual bool HasFileSystemType(FileSystemType type) const = 0; | |
| 67 }; | |
| 68 | |
| 69 // The FileSystem directory name. | |
| 70 static const base::FilePath::CharType kFileSystemDirectory[]; | |
| 71 | |
| 72 // |file_task_runner| is used to validate the root directory and delete the | |
| 73 // obfuscated file util. | |
| 74 SandboxMountPointProvider( | |
| 75 quota::QuotaManagerProxy* quota_manager_proxy, | |
| 76 base::SequencedTaskRunner* file_task_runner, | |
| 77 const base::FilePath& profile_path, | |
| 78 const FileSystemOptions& file_system_options, | |
| 79 quota::SpecialStoragePolicy* special_storage_policy); | |
| 80 virtual ~SandboxMountPointProvider(); | |
| 81 | |
| 82 // FileSystemMountPointProvider overrides. | |
| 83 virtual bool CanHandleType(FileSystemType type) const OVERRIDE; | |
| 84 virtual void OpenFileSystem( | |
| 85 const GURL& origin_url, | |
| 86 FileSystemType type, | |
| 87 OpenFileSystemMode mode, | |
| 88 const OpenFileSystemCallback& callback) OVERRIDE; | |
| 89 virtual FileSystemFileUtil* GetFileUtil(FileSystemType type) OVERRIDE; | |
| 90 virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) OVERRIDE; | |
| 91 virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory( | |
| 92 FileSystemType type, | |
| 93 base::PlatformFileError* error_code) OVERRIDE; | |
| 94 virtual FileSystemOperation* CreateFileSystemOperation( | |
| 95 const FileSystemURL& url, | |
| 96 FileSystemContext* context, | |
| 97 base::PlatformFileError* error_code) const OVERRIDE; | |
| 98 virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader( | |
| 99 const FileSystemURL& url, | |
| 100 int64 offset, | |
| 101 const base::Time& expected_modification_time, | |
| 102 FileSystemContext* context) const OVERRIDE; | |
| 103 virtual scoped_ptr<FileStreamWriter> CreateFileStreamWriter( | |
| 104 const FileSystemURL& url, | |
| 105 int64 offset, | |
| 106 FileSystemContext* context) const OVERRIDE; | |
| 107 virtual FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE; | |
| 108 | |
| 109 // Returns an origin enumerator of this provider. | |
| 110 // This method can only be called on the file thread. | |
| 111 OriginEnumerator* CreateOriginEnumerator(); | |
| 112 | |
| 113 // Gets a base directory path of the sandboxed filesystem that is | |
| 114 // specified by |origin_url| and |type|. | |
| 115 // (The path is similar to the origin's root path but doesn't contain | |
| 116 // the 'unique' part.) | |
| 117 // Returns an empty path if the given type is invalid. | |
| 118 // This method can only be called on the file thread. | |
| 119 base::FilePath GetBaseDirectoryForOriginAndType( | |
| 120 const GURL& origin_url, | |
| 121 FileSystemType type, | |
| 122 bool create); | |
| 123 | |
| 124 // FileSystemQuotaUtil overrides. | |
| 125 virtual base::PlatformFileError DeleteOriginDataOnFileThread( | |
| 126 FileSystemContext* context, | |
| 127 quota::QuotaManagerProxy* proxy, | |
| 128 const GURL& origin_url, | |
| 129 FileSystemType type) OVERRIDE; | |
| 130 virtual void GetOriginsForTypeOnFileThread( | |
| 131 FileSystemType type, | |
| 132 std::set<GURL>* origins) OVERRIDE; | |
| 133 virtual void GetOriginsForHostOnFileThread( | |
| 134 FileSystemType type, | |
| 135 const std::string& host, | |
| 136 std::set<GURL>* origins) OVERRIDE; | |
| 137 virtual int64 GetOriginUsageOnFileThread( | |
| 138 FileSystemContext* context, | |
| 139 const GURL& origin_url, | |
| 140 FileSystemType type) OVERRIDE; | |
| 141 | |
| 142 virtual void InvalidateUsageCache(const GURL& origin_url, | |
| 143 FileSystemType type) OVERRIDE; | |
| 144 virtual void StickyInvalidateUsageCache(const GURL& origin_url, | |
| 145 FileSystemType type) OVERRIDE; | |
| 146 | |
| 147 void CollectOpenFileSystemMetrics(base::PlatformFileError error_code); | |
| 148 | |
| 149 // Returns observers for the given type. | |
| 150 const UpdateObserverList* GetUpdateObservers(FileSystemType type) const; | |
| 151 const AccessObserverList* GetAccessObservers(FileSystemType type) const; | |
| 152 | |
| 153 void AddFileUpdateObserver(FileSystemType type, | |
| 154 FileUpdateObserver* observer, | |
| 155 base::SequencedTaskRunner* task_runner); | |
| 156 void AddFileChangeObserver(FileSystemType type, | |
| 157 FileChangeObserver* observer, | |
| 158 base::SequencedTaskRunner* task_runner); | |
| 159 | |
| 160 // Performs API-specific validity checks on the given path |url|. | |
| 161 // Returns true if access to |url| is valid in this filesystem. | |
| 162 bool IsAccessValid(const FileSystemURL& url) const; | |
| 163 | |
| 164 void set_enable_temporary_file_system_in_incognito(bool enable) { | |
| 165 enable_temporary_file_system_in_incognito_ = enable; | |
| 166 } | |
| 167 | |
| 168 private: | |
| 169 friend class SandboxQuotaObserver; | |
| 170 friend class SandboxFileSystemTestHelper; | |
| 171 friend class SandboxMountPointProviderMigrationTest; | |
| 172 friend class SandboxMountPointProviderOriginEnumeratorTest; | |
| 173 | |
| 174 // Returns a path to the usage cache file. | |
| 175 base::FilePath GetUsageCachePathForOriginAndType( | |
| 176 const GURL& origin_url, | |
| 177 FileSystemType type); | |
| 178 | |
| 179 // Returns a path to the usage cache file (static version). | |
| 180 static base::FilePath GetUsageCachePathForOriginAndType( | |
| 181 ObfuscatedFileUtil* sandbox_file_util, | |
| 182 const GURL& origin_url, | |
| 183 FileSystemType type, | |
| 184 base::PlatformFileError* error_out); | |
| 185 | |
| 186 // Returns true if the given |url|'s scheme is allowed to access | |
| 187 // filesystem. | |
| 188 bool IsAllowedScheme(const GURL& url) const; | |
| 189 | |
| 190 ObfuscatedFileUtil* sandbox_sync_file_util(); | |
| 191 | |
| 192 FileSystemUsageCache* usage_cache() { | |
| 193 return file_system_usage_cache_.get(); | |
| 194 } | |
| 195 | |
| 196 static void InvalidateUsageCacheOnFileThread( | |
| 197 ObfuscatedFileUtil* file_util, | |
| 198 const GURL& origin, | |
| 199 FileSystemType type, | |
| 200 FileSystemUsageCache* usage_cache); | |
| 201 | |
| 202 int64 RecalculateUsage(FileSystemContext* context, | |
| 203 const GURL& origin, | |
| 204 FileSystemType type); | |
| 205 | |
| 206 scoped_refptr<base::SequencedTaskRunner> file_task_runner_; | |
| 207 | |
| 208 const base::FilePath profile_path_; | |
| 209 | |
| 210 FileSystemOptions file_system_options_; | |
| 211 bool enable_temporary_file_system_in_incognito_; | |
| 212 | |
| 213 scoped_ptr<AsyncFileUtilAdapter> sandbox_file_util_; | |
| 214 | |
| 215 scoped_ptr<FileSystemUsageCache> file_system_usage_cache_; | |
| 216 | |
| 217 scoped_ptr<SandboxQuotaObserver> quota_observer_; | |
| 218 | |
| 219 // Acccessed only on the file thread. | |
| 220 std::set<GURL> visited_origins_; | |
| 221 | |
| 222 // Observers. | |
| 223 UpdateObserverList update_observers_; | |
| 224 ChangeObserverList change_observers_; | |
| 225 AccessObserverList access_observers_; | |
| 226 | |
| 227 // Observers for syncable file systems. | |
| 228 UpdateObserverList syncable_update_observers_; | |
| 229 ChangeObserverList syncable_change_observers_; | |
| 230 | |
| 231 base::Time next_release_time_for_open_filesystem_stat_; | |
| 232 | |
| 233 std::set<std::pair<GURL, FileSystemType> > sticky_dirty_origins_; | |
| 234 | |
| 235 // Indicates if the usage tracking for FileSystem is enabled or not. | |
| 236 // The usage tracking is enabled by default and can be disabled by | |
| 237 // a command-line switch (--disable-file-system-usage-tracking). | |
| 238 bool enable_usage_tracking_; | |
| 239 | |
| 240 scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_; | |
| 241 | |
| 242 base::WeakPtrFactory<SandboxMountPointProvider> weak_factory_; | |
| 243 | |
| 244 DISALLOW_COPY_AND_ASSIGN(SandboxMountPointProvider); | |
| 245 }; | |
| 246 | |
| 247 } // namespace fileapi | |
| 248 | |
| 249 #endif // WEBKIT_BROWSER_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_ | |
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Chromium Code Reviews
Issue 18344013:
fileapi: Rename FileSystemMountProvider to FileSystemBackend (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src