1 // Copyright 2013 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.
5 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_
6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_
11 #include "base/callback_forward.h"
12 #include "base/files/file.h"
13 #include "base/files/scoped_temp_dir.h"
14 #include "base/message_loop/message_loop.h"
15 #include "base/observer_list_threadsafe.h"
16 #include "chrome/browser/sync_file_system/local/local_file_sync_status.h"
17 #include "chrome/browser/sync_file_system/sync_status_code.h"
18 #include "webkit/browser/blob/blob_data_handle.h"
19 #include "webkit/browser/fileapi/file_system_operation.h"
20 #include "webkit/browser/fileapi/file_system_url.h"
21 #include "webkit/browser/quota/quota_callbacks.h"
22 #include "webkit/common/fileapi/file_system_types.h"
23 #include "webkit/common/fileapi/file_system_util.h"
24 #include "webkit/common/quota/quota_types.h"
27 class MessageLoopProxy;
28 class SingleThreadTaskRunner;
33 class FileSystemContext;
34 class FileSystemOperationRunner;
43 class URLRequestContext;
50 namespace sync_file_system {
53 class LocalFileSyncContext;
54 class SyncFileSystemBackend;
56 // A canned syncable filesystem for testing.
57 // This internally creates its own QuotaManager and FileSystemContext
58 // (as we do so for each isolated application).
59 class CannedSyncableFileSystem
60 : public LocalFileSyncStatus::Observer {
62 typedef base::Callback<void(const GURL& root,
63 const std::string& name,
64 base::File::Error result)>
65 OpenFileSystemCallback;
66 typedef base::Callback<void(base::File::Error)> StatusCallback;
67 typedef base::Callback<void(int64)> WriteCallback;
68 typedef fileapi::FileSystemOperation::FileEntryList FileEntryList;
75 CannedSyncableFileSystem(const GURL& origin,
76 leveldb::Env* env_override,
77 base::SingleThreadTaskRunner* io_task_runner,
78 base::SingleThreadTaskRunner* file_task_runner);
79 virtual ~CannedSyncableFileSystem();
81 // SetUp must be called before using this instance.
82 void SetUp(QuotaMode quota_mode);
84 // TearDown must be called before destructing this instance.
87 // Creates a FileSystemURL for the given (utf8) path string.
88 fileapi::FileSystemURL URL(const std::string& path) const;
90 // Initialize this with given |sync_context| if it hasn't
92 sync_file_system::SyncStatusCode MaybeInitializeFileSystemContext(
93 LocalFileSyncContext* sync_context);
95 // Opens a new syncable file system.
96 base::File::Error OpenFileSystem();
98 // Register sync status observers. Unlike original
99 // LocalFileSyncStatus::Observer implementation the observer methods
100 // are called on the same thread where AddSyncStatusObserver were called.
101 void AddSyncStatusObserver(LocalFileSyncStatus::Observer* observer);
102 void RemoveSyncStatusObserver(LocalFileSyncStatus::Observer* observer);
105 fileapi::FileSystemContext* file_system_context() {
106 return file_system_context_.get();
108 quota::QuotaManager* quota_manager() { return quota_manager_.get(); }
109 GURL origin() const { return origin_; }
110 fileapi::FileSystemType type() const { return type_; }
111 quota::StorageType storage_type() const {
112 return FileSystemTypeToQuotaStorageType(type_);
115 // Helper routines to perform file system operations.
116 // OpenFileSystem() must have been called before calling any of them.
117 // They create an operation and run it on IO task runner, and the operation
118 // posts a task on file runner.
119 base::File::Error CreateDirectory(const fileapi::FileSystemURL& url);
120 base::File::Error CreateFile(const fileapi::FileSystemURL& url);
121 base::File::Error Copy(const fileapi::FileSystemURL& src_url,
122 const fileapi::FileSystemURL& dest_url);
123 base::File::Error Move(const fileapi::FileSystemURL& src_url,
124 const fileapi::FileSystemURL& dest_url);
125 base::File::Error TruncateFile(const fileapi::FileSystemURL& url,
127 base::File::Error TouchFile(const fileapi::FileSystemURL& url,
128 const base::Time& last_access_time,
129 const base::Time& last_modified_time);
130 base::File::Error Remove(const fileapi::FileSystemURL& url, bool recursive);
131 base::File::Error FileExists(const fileapi::FileSystemURL& url);
132 base::File::Error DirectoryExists(const fileapi::FileSystemURL& url);
133 base::File::Error VerifyFile(const fileapi::FileSystemURL& url,
134 const std::string& expected_data);
135 base::File::Error GetMetadataAndPlatformPath(
136 const fileapi::FileSystemURL& url,
137 base::File::Info* info,
138 base::FilePath* platform_path);
139 base::File::Error ReadDirectory(const fileapi::FileSystemURL& url,
140 FileEntryList* entries);
142 // Returns the # of bytes written (>=0) or an error code (<0).
143 int64 Write(net::URLRequestContext* url_request_context,
144 const fileapi::FileSystemURL& url,
145 scoped_ptr<webkit_blob::BlobDataHandle> blob_data_handle);
146 int64 WriteString(const fileapi::FileSystemURL& url, const std::string& data);
148 // Purges the file system local storage.
149 base::File::Error DeleteFileSystem();
151 // Retrieves the quota and usage.
152 quota::QuotaStatusCode GetUsageAndQuota(int64* usage, int64* quota);
154 // ChangeTracker related methods. They run on file task runner.
155 void GetChangedURLsInTracker(fileapi::FileSystemURLSet* urls);
156 void ClearChangeForURLInTracker(const fileapi::FileSystemURL& url);
157 void GetChangesForURLInTracker(const fileapi::FileSystemURL& url,
158 FileChangeList* changes);
160 SyncFileSystemBackend* backend();
161 fileapi::FileSystemOperationRunner* operation_runner();
163 // LocalFileSyncStatus::Observer overrides.
164 virtual void OnSyncEnabled(const fileapi::FileSystemURL& url) OVERRIDE;
165 virtual void OnWriteEnabled(const fileapi::FileSystemURL& url) OVERRIDE;
167 // Operation methods body.
168 // They can be also called directly if the caller is already on IO thread.
169 void DoOpenFileSystem(const OpenFileSystemCallback& callback);
170 void DoCreateDirectory(const fileapi::FileSystemURL& url,
171 const StatusCallback& callback);
172 void DoCreateFile(const fileapi::FileSystemURL& url,
173 const StatusCallback& callback);
174 void DoCopy(const fileapi::FileSystemURL& src_url,
175 const fileapi::FileSystemURL& dest_url,
176 const StatusCallback& callback);
177 void DoMove(const fileapi::FileSystemURL& src_url,
178 const fileapi::FileSystemURL& dest_url,
179 const StatusCallback& callback);
180 void DoTruncateFile(const fileapi::FileSystemURL& url,
182 const StatusCallback& callback);
183 void DoTouchFile(const fileapi::FileSystemURL& url,
184 const base::Time& last_access_time,
185 const base::Time& last_modified_time,
186 const StatusCallback& callback);
187 void DoRemove(const fileapi::FileSystemURL& url,
189 const StatusCallback& callback);
190 void DoFileExists(const fileapi::FileSystemURL& url,
191 const StatusCallback& callback);
192 void DoDirectoryExists(const fileapi::FileSystemURL& url,
193 const StatusCallback& callback);
194 void DoVerifyFile(const fileapi::FileSystemURL& url,
195 const std::string& expected_data,
196 const StatusCallback& callback);
197 void DoGetMetadataAndPlatformPath(const fileapi::FileSystemURL& url,
198 base::File::Info* info,
199 base::FilePath* platform_path,
200 const StatusCallback& callback);
201 void DoReadDirectory(const fileapi::FileSystemURL& url,
202 FileEntryList* entries,
203 const StatusCallback& callback);
204 void DoWrite(net::URLRequestContext* url_request_context,
205 const fileapi::FileSystemURL& url,
206 scoped_ptr<webkit_blob::BlobDataHandle> blob_data_handle,
207 const WriteCallback& callback);
208 void DoWriteString(const fileapi::FileSystemURL& url,
209 const std::string& data,
210 const WriteCallback& callback);
211 void DoGetUsageAndQuota(int64* usage,
213 const quota::StatusCallback& callback);
216 typedef ObserverListThreadSafe<LocalFileSyncStatus::Observer> ObserverList;
219 void DidOpenFileSystem(base::SingleThreadTaskRunner* original_task_runner,
221 const std::string& name,
222 base::File::Error result);
223 void DidInitializeFileSystemContext(sync_file_system::SyncStatusCode status);
225 void InitializeSyncStatusObserver();
227 base::ScopedTempDir data_dir_;
228 const std::string service_name_;
230 scoped_refptr<quota::QuotaManager> quota_manager_;
231 scoped_refptr<fileapi::FileSystemContext> file_system_context_;
233 const fileapi::FileSystemType type_;
235 base::File::Error result_;
236 sync_file_system::SyncStatusCode sync_status_;
238 leveldb::Env* env_override_;
239 scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
240 scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
242 // Boolean flags mainly for helping debug.
243 bool is_filesystem_set_up_;
244 bool is_filesystem_opened_; // Should be accessed only on the IO thread.
246 scoped_refptr<ObserverList> sync_status_observers_;
248 DISALLOW_COPY_AND_ASSIGN(CannedSyncableFileSystem);
251 } // namespace sync_file_system
253 #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_