1 // Copyright 2014 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_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_ 6 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_ 7 8 #include <map> 9 #include <string> 10 #include <vector> 11 12 #include "base/callback.h" 13 #include "base/memory/linked_ptr.h" 14 #include "base/memory/weak_ptr.h" 15 #include "base/task/cancelable_task_tracker.h" 16 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h" 17 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h" 18 19 class Profile; 20 21 namespace base { 22 class Time; 23 } // namespace base 24 25 namespace net { 26 class IOBuffer; 27 } // namespace net 28 29 namespace chromeos { 30 namespace file_system_provider { 31 32 class RequestManager; 33 34 // Path of a sample fake file, which is added to the fake file system by 35 // default. 36 extern const char kFakeFilePath[]; 37 38 // Represents a file or a directory on a fake file system. 39 struct FakeEntry { 40 FakeEntry(); 41 FakeEntry(scoped_ptr<EntryMetadata> metadata, const std::string& contents); 42 ~FakeEntry(); 43 44 scoped_ptr<EntryMetadata> metadata; 45 std::string contents; 46 47 private: 48 DISALLOW_COPY_AND_ASSIGN(FakeEntry); 49 }; 50 51 // Fake provided file system implementation. Does not communicate with target 52 // extensions. Used for unit tests. 53 class FakeProvidedFileSystem : public ProvidedFileSystemInterface { 54 public: 55 explicit FakeProvidedFileSystem( 56 const ProvidedFileSystemInfo& file_system_info); 57 virtual ~FakeProvidedFileSystem(); 58 59 // Adds a fake entry to the fake file system. 60 void AddEntry(const base::FilePath& entry_path, 61 bool is_directory, 62 const std::string& name, 63 int64 size, 64 base::Time modification_time, 65 std::string mime_type, 66 std::string contents); 67 68 // Fetches a pointer to a fake entry registered in the fake file system. If 69 // not found, then returns NULL. The returned pointes is owned by 70 // FakeProvidedFileSystem. 71 const FakeEntry* GetEntry(const base::FilePath& entry_path) const; 72 73 // ProvidedFileSystemInterface overrides. 74 virtual AbortCallback RequestUnmount( 75 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 76 virtual AbortCallback GetMetadata( 77 const base::FilePath& entry_path, 78 ProvidedFileSystemInterface::MetadataFieldMask fields, 79 const ProvidedFileSystemInterface::GetMetadataCallback& callback) 80 OVERRIDE; 81 virtual AbortCallback ReadDirectory( 82 const base::FilePath& directory_path, 83 const storage::AsyncFileUtil::ReadDirectoryCallback& callback) OVERRIDE; 84 virtual AbortCallback OpenFile(const base::FilePath& file_path, 85 OpenFileMode mode, 86 const OpenFileCallback& callback) OVERRIDE; 87 virtual AbortCallback CloseFile( 88 int file_handle, 89 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 90 virtual AbortCallback ReadFile( 91 int file_handle, 92 net::IOBuffer* buffer, 93 int64 offset, 94 int length, 95 const ReadChunkReceivedCallback& callback) OVERRIDE; 96 virtual AbortCallback CreateDirectory( 97 const base::FilePath& directory_path, 98 bool recursive, 99 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 100 virtual AbortCallback DeleteEntry( 101 const base::FilePath& entry_path, 102 bool recursive, 103 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 104 virtual AbortCallback CreateFile( 105 const base::FilePath& file_path, 106 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 107 virtual AbortCallback CopyEntry( 108 const base::FilePath& source_path, 109 const base::FilePath& target_path, 110 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 111 virtual AbortCallback MoveEntry( 112 const base::FilePath& source_path, 113 const base::FilePath& target_path, 114 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 115 virtual AbortCallback Truncate( 116 const base::FilePath& file_path, 117 int64 length, 118 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 119 virtual AbortCallback WriteFile( 120 int file_handle, 121 net::IOBuffer* buffer, 122 int64 offset, 123 int length, 124 const storage::AsyncFileUtil::StatusCallback& callback) OVERRIDE; 125 virtual const ProvidedFileSystemInfo& GetFileSystemInfo() const OVERRIDE; 126 virtual RequestManager* GetRequestManager() OVERRIDE; 127 virtual base::WeakPtr<ProvidedFileSystemInterface> GetWeakPtr() OVERRIDE; 128 129 // Factory callback, to be used in Service::SetFileSystemFactory(). The 130 // |event_router| argument can be NULL. 131 static ProvidedFileSystemInterface* Create( 132 Profile* profile, 133 const ProvidedFileSystemInfo& file_system_info); 134 135 private: 136 typedef std::map<base::FilePath, linked_ptr<FakeEntry> > Entries; 137 typedef std::map<int, base::FilePath> OpenedFilesMap; 138 139 // Utility function for posting a task which can be aborted by calling the 140 // returned callback. 141 AbortCallback PostAbortableTask(const base::Closure& callback); 142 143 // Aborts a request. |task_id| refers to a posted callback returning a 144 // response for the operation, which will be cancelled, hence not called. 145 void Abort(int task_id, 146 const storage::AsyncFileUtil::StatusCallback& callback); 147 148 // Aborts a request. |task_ids| refers to a vector of posted callbacks 149 // returning a response for the operation, which will be cancelled, hence not 150 // called. 151 void AbortMany(const std::vector<int>& task_ids, 152 const storage::AsyncFileUtil::StatusCallback& callback); 153 154 ProvidedFileSystemInfo file_system_info_; 155 Entries entries_; 156 OpenedFilesMap opened_files_; 157 int last_file_handle_; 158 base::CancelableTaskTracker tracker_; 159 160 base::WeakPtrFactory<FakeProvidedFileSystem> weak_ptr_factory_; 161 DISALLOW_COPY_AND_ASSIGN(FakeProvidedFileSystem); 162 }; 163 164 } // namespace file_system_provider 165 } // namespace chromeos 166 167 #endif // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_ 168
