Upstream version 5.34.104.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / sync_file_system / local / canned_syncable_file_system.h
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.
4
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_
7
8 #include <string>
9 #include <vector>
10
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"
25
26 namespace base {
27 class MessageLoopProxy;
28 class SingleThreadTaskRunner;
29 class Thread;
30 }
31
32 namespace fileapi {
33 class FileSystemContext;
34 class FileSystemOperationRunner;
35 class FileSystemURL;
36 }
37
38 namespace leveldb {
39 class Env;
40 }
41
42 namespace net {
43 class URLRequestContext;
44 }
45
46 namespace quota {
47 class QuotaManager;
48 }
49
50 namespace sync_file_system {
51
52 class FileChangeList;
53 class LocalFileSyncContext;
54 class SyncFileSystemBackend;
55
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 {
61  public:
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;
69
70   enum QuotaMode {
71     QUOTA_ENABLED,
72     QUOTA_DISABLED,
73   };
74
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();
80
81   // SetUp must be called before using this instance.
82   void SetUp(QuotaMode quota_mode);
83
84   // TearDown must be called before destructing this instance.
85   void TearDown();
86
87   // Creates a FileSystemURL for the given (utf8) path string.
88   fileapi::FileSystemURL URL(const std::string& path) const;
89
90   // Initialize this with given |sync_context| if it hasn't
91   // been initialized.
92   sync_file_system::SyncStatusCode MaybeInitializeFileSystemContext(
93       LocalFileSyncContext* sync_context);
94
95   // Opens a new syncable file system.
96   base::File::Error OpenFileSystem();
97
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);
103
104   // Accessors.
105   fileapi::FileSystemContext* file_system_context() {
106     return file_system_context_.get();
107   }
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_);
113   }
114
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,
126                                  int64 size);
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);
141
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);
147
148   // Purges the file system local storage.
149   base::File::Error DeleteFileSystem();
150
151   // Retrieves the quota and usage.
152   quota::QuotaStatusCode GetUsageAndQuota(int64* usage, int64* quota);
153
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);
159
160   SyncFileSystemBackend* backend();
161   fileapi::FileSystemOperationRunner* operation_runner();
162
163   // LocalFileSyncStatus::Observer overrides.
164   virtual void OnSyncEnabled(const fileapi::FileSystemURL& url) OVERRIDE;
165   virtual void OnWriteEnabled(const fileapi::FileSystemURL& url) OVERRIDE;
166
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,
181                       int64 size,
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,
188                 bool recursive,
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,
212                           int64* quota,
213                           const quota::StatusCallback& callback);
214
215  private:
216   typedef ObserverListThreadSafe<LocalFileSyncStatus::Observer> ObserverList;
217
218   // Callbacks.
219   void DidOpenFileSystem(base::SingleThreadTaskRunner* original_task_runner,
220                          const GURL& root,
221                          const std::string& name,
222                          base::File::Error result);
223   void DidInitializeFileSystemContext(sync_file_system::SyncStatusCode status);
224
225   void InitializeSyncStatusObserver();
226
227   base::ScopedTempDir data_dir_;
228   const std::string service_name_;
229
230   scoped_refptr<quota::QuotaManager> quota_manager_;
231   scoped_refptr<fileapi::FileSystemContext> file_system_context_;
232   const GURL origin_;
233   const fileapi::FileSystemType type_;
234   GURL root_url_;
235   base::File::Error result_;
236   sync_file_system::SyncStatusCode sync_status_;
237
238   leveldb::Env* env_override_;
239   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
240   scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
241
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.
245
246   scoped_refptr<ObserverList> sync_status_observers_;
247
248   DISALLOW_COPY_AND_ASSIGN(CannedSyncableFileSystem);
249 };
250
251 }  // namespace sync_file_system
252
253 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_