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Side by Side Diff: webkit/fileapi/sandbox_directory_database.h

Issue 14885021: Cleanup: Prefix HTML5 Sandbox FileSystem related files with 'sandbox_' (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 7 months ago
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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_FILEAPI_FILE_SYSTEM_DIRECTORY_DATABASE_H_ 5 #ifndef WEBKIT_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
6 #define WEBKIT_FILEAPI_FILE_SYSTEM_DIRECTORY_DATABASE_H_ 6 #define WEBKIT_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
7 7
8 #include <string> 8 #include <string>
9 #include <vector> 9 #include <vector>
10 10
11 #include "base/files/file_path.h" 11 #include "base/files/file_path.h"
12 #include "base/memory/scoped_ptr.h" 12 #include "base/memory/scoped_ptr.h"
13 #include "base/time.h" 13 #include "base/time.h"
14 #include "webkit/storage/webkit_storage_export.h" 14 #include "webkit/storage/webkit_storage_export.h"
15 15
16 namespace tracked_objects { 16 namespace tracked_objects {
(...skipping 10 matching lines...) Expand all
27 27
28 // This class WILL NOT protect you against producing directory loops, giving an 28 // This class WILL NOT protect you against producing directory loops, giving an
29 // empty directory a backing data file, giving two files the same backing file, 29 // empty directory a backing data file, giving two files the same backing file,
30 // or pointing to a nonexistent backing file. It does no file IO other than 30 // or pointing to a nonexistent backing file. It does no file IO other than
31 // that involved with talking to its underlying database. It does not create or 31 // that involved with talking to its underlying database. It does not create or
32 // in any way touch real files; it only creates path entries in its database. 32 // in any way touch real files; it only creates path entries in its database.
33 33
34 // TODO(ericu): Safe mode, which does more checks such as the above on debug 34 // TODO(ericu): Safe mode, which does more checks such as the above on debug
35 // builds. 35 // builds.
36 // TODO(ericu): Add a method that will give a unique filename for a data file. 36 // TODO(ericu): Add a method that will give a unique filename for a data file.
37 class WEBKIT_STORAGE_EXPORT_PRIVATE FileSystemDirectoryDatabase { 37 class WEBKIT_STORAGE_EXPORT_PRIVATE SandboxDirectoryDatabase {
38 public: 38 public:
39 typedef int64 FileId; 39 typedef int64 FileId;
40 40
41 struct WEBKIT_STORAGE_EXPORT_PRIVATE FileInfo { 41 struct WEBKIT_STORAGE_EXPORT_PRIVATE FileInfo {
42 FileInfo(); 42 FileInfo();
43 ~FileInfo(); 43 ~FileInfo();
44 44
45 bool is_directory() const { 45 bool is_directory() const {
46 return data_path.empty(); 46 return data_path.empty();
47 } 47 }
48 48
49 FileId parent_id; 49 FileId parent_id;
50 base::FilePath data_path; 50 base::FilePath data_path;
51 base::FilePath::StringType name; 51 base::FilePath::StringType name;
52 // This modification time is valid only for directories, not files, as 52 // This modification time is valid only for directories, not files, as
53 // FileWriter will get the files out of sync. 53 // FileWriter will get the files out of sync.
54 // For files, look at the modification time of the underlying data_path. 54 // For files, look at the modification time of the underlying data_path.
55 base::Time modification_time; 55 base::Time modification_time;
56 }; 56 };
57 57
58 explicit FileSystemDirectoryDatabase( 58 explicit SandboxDirectoryDatabase(
59 const base::FilePath& filesystem_data_directory); 59 const base::FilePath& filesystem_data_directory);
60 ~FileSystemDirectoryDatabase(); 60 ~SandboxDirectoryDatabase();
61 61
62 bool GetChildWithName( 62 bool GetChildWithName(
63 FileId parent_id, const base::FilePath::StringType& name, FileId* child_id ); 63 FileId parent_id,
64 const base::FilePath::StringType& name,
65 FileId* child_id);
64 bool GetFileWithPath(const base::FilePath& path, FileId* file_id); 66 bool GetFileWithPath(const base::FilePath& path, FileId* file_id);
65 // ListChildren will succeed, returning 0 children, if parent_id doesn't 67 // ListChildren will succeed, returning 0 children, if parent_id doesn't
66 // exist. 68 // exist.
67 bool ListChildren(FileId parent_id, std::vector<FileId>* children); 69 bool ListChildren(FileId parent_id, std::vector<FileId>* children);
68 bool GetFileInfo(FileId file_id, FileInfo* info); 70 bool GetFileInfo(FileId file_id, FileInfo* info);
69 bool AddFileInfo(const FileInfo& info, FileId* file_id); 71 bool AddFileInfo(const FileInfo& info, FileId* file_id);
70 bool RemoveFileInfo(FileId file_id); 72 bool RemoveFileInfo(FileId file_id);
71 // This does a full update of the FileInfo, and is what you'd use for moves 73 // This does a full update of the FileInfo, and is what you'd use for moves
72 // and renames. If you just want to update the modification_time, use 74 // and renames. If you just want to update the modification_time, use
73 // UpdateModificationTime. 75 // UpdateModificationTime.
74 bool UpdateFileInfo(FileId file_id, const FileInfo& info); 76 bool UpdateFileInfo(FileId file_id, const FileInfo& info);
75 bool UpdateModificationTime( 77 bool UpdateModificationTime(
76 FileId file_id, const base::Time& modification_time); 78 FileId file_id, const base::Time& modification_time);
77 // This is used for an overwriting move of a file [not a directory] on top of 79 // This is used for an overwriting move of a file [not a directory] on top of
78 // another file [also not a directory]; we need to alter two files' info in a 80 // another file [also not a directory]; we need to alter two files' info in a
79 // single transaction to avoid weird backing file references in the event of a 81 // single transaction to avoid weird backing file references in the event of a
80 // partial failure. 82 // partial failure.
81 bool OverwritingMoveFile(FileId src_file_id, FileId dest_file_id); 83 bool OverwritingMoveFile(FileId src_file_id, FileId dest_file_id);
82 84
83 // This produces the series 0, 1, 2..., starting at 0 when the underlying 85 // This produces the series 0, 1, 2..., starting at 0 when the underlying
84 // filesystem is first created, and maintaining state across 86 // filesystem is first created, and maintaining state across
85 // creation/destruction of FileSystemDirectoryDatabase objects. 87 // creation/destruction of SandboxDirectoryDatabase objects.
86 bool GetNextInteger(int64* next); 88 bool GetNextInteger(int64* next);
87 89
88 // Returns true if the database looks consistent with local filesystem. 90 // Returns true if the database looks consistent with local filesystem.
89 bool IsFileSystemConsistent(); 91 bool IsFileSystemConsistent();
90 92
91 static bool DestroyDatabase(const base::FilePath& path); 93 static bool DestroyDatabase(const base::FilePath& path);
92 94
93 private: 95 private:
94 enum RecoveryOption { 96 enum RecoveryOption {
95 DELETE_ON_CORRUPTION, 97 DELETE_ON_CORRUPTION,
96 REPAIR_ON_CORRUPTION, 98 REPAIR_ON_CORRUPTION,
97 FAIL_ON_CORRUPTION, 99 FAIL_ON_CORRUPTION,
98 }; 100 };
99 101
100 friend class FileSystemDirectoryDatabaseTest; 102 friend class SandboxDirectoryDatabaseTest;
101 103
102 bool Init(RecoveryOption recovery_option); 104 bool Init(RecoveryOption recovery_option);
103 bool RepairDatabase(const std::string& db_path); 105 bool RepairDatabase(const std::string& db_path);
104 void ReportInitStatus(const leveldb::Status& status); 106 void ReportInitStatus(const leveldb::Status& status);
105 bool StoreDefaultValues(); 107 bool StoreDefaultValues();
106 bool GetLastFileId(FileId* file_id); 108 bool GetLastFileId(FileId* file_id);
107 bool VerifyIsDirectory(FileId file_id); 109 bool VerifyIsDirectory(FileId file_id);
108 bool AddFileInfoHelper( 110 bool AddFileInfoHelper(
109 const FileInfo& info, FileId file_id, leveldb::WriteBatch* batch); 111 const FileInfo& info, FileId file_id, leveldb::WriteBatch* batch);
110 bool RemoveFileInfoHelper(FileId file_id, leveldb::WriteBatch* batch); 112 bool RemoveFileInfoHelper(FileId file_id, leveldb::WriteBatch* batch);
111 void HandleError(const tracked_objects::Location& from_here, 113 void HandleError(const tracked_objects::Location& from_here,
112 const leveldb::Status& status); 114 const leveldb::Status& status);
113 115
114 const base::FilePath filesystem_data_directory_; 116 const base::FilePath filesystem_data_directory_;
115 scoped_ptr<leveldb::DB> db_; 117 scoped_ptr<leveldb::DB> db_;
116 base::Time last_reported_time_; 118 base::Time last_reported_time_;
117 DISALLOW_COPY_AND_ASSIGN(FileSystemDirectoryDatabase); 119 DISALLOW_COPY_AND_ASSIGN(SandboxDirectoryDatabase);
118 }; 120 };
119 121
120 } // namespace fileapi 122 } // namespace fileapi
121 123
122 #endif // WEBKIT_FILEAPI_FILE_SYSTEM_DIRECTORY_DATABASE_H_ 124 #endif // WEBKIT_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
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