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 #include "chrome/browser/media_galleries/fileapi/picasa_finder.h" 6 7 #if defined(OS_WIN) 8 #include <windows.h> 9 #endif 10 11 #include "base/base_paths.h" 12 #include "base/bind.h" 13 #include "base/file_util.h" 14 #include "base/path_service.h" 15 #include "base/strings/string16.h" 16 #include "chrome/browser/storage_monitor/storage_info.h" 17 #include "chrome/common/media_galleries/picasa_types.h" 18 #include "content/public/browser/browser_thread.h" 19 20 #if defined(OS_WIN) 21 #include "base/win/registry.h" 22 #endif 23 24 namespace picasa { 25 26 #if defined(OS_WIN) 27 const wchar_t kPicasaRegistryPath[] = 28 L"Software\\Google\\Picasa\\Picasa2\\Preferences"; 29 const wchar_t kPicasaRegistryAppDataPathKey[] = L"AppLocalDataPath"; 30 #endif 31 32 namespace { 33 34 #if defined(OS_WIN) 35 base::FilePath GetCustomPicasaAppDataPathFromWinRegistry() { 36 base::win::RegKey key; 37 if (key.Open(HKEY_CURRENT_USER, kPicasaRegistryPath, KEY_READ) != 38 ERROR_SUCCESS || !key.Valid()) { 39 return base::FilePath(); 40 } 41 42 base::string16 value; 43 if (key.ReadValue(kPicasaRegistryAppDataPathKey, &value) != ERROR_SUCCESS) 44 return base::FilePath(); 45 if (value.empty()) 46 return base::FilePath(); 47 48 return base::FilePath(value); 49 } 50 51 base::FilePath GetPicasaDatabasePath() { 52 base::FilePath path = GetCustomPicasaAppDataPathFromWinRegistry(); 53 if (path.empty() && !PathService::Get(base::DIR_LOCAL_APP_DATA, &path)) 54 return base::FilePath(); 55 return MakePicasaDatabasePath(path); 56 } 57 #endif // OS_WIN 58 59 #if defined(OS_MACOSX) 60 base::FilePath GetPicasaDatabasePath() { 61 base::FilePath path = GetCustomPicasaAppDataPathFromMacPreferences(); 62 if (path.empty() && !PathService::Get(base::DIR_APP_DATA, &path)) 63 return base::FilePath(); 64 return MakePicasaDatabasePath(path); 65 } 66 #endif // OS_MACOSX 67 68 // Returns path of Picasa's DB3 database directory. May only be called on 69 // threads that allow for disk IO, like the FILE thread or MediaTaskRunner. 70 base::FilePath FindPicasaDatabaseOnFileThread() { 71 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE)); 72 73 #if defined(OS_WIN) || defined(OS_MACOSX) 74 base::FilePath path = GetPicasaDatabasePath(); 75 // Verify actual existence 76 if (!base::DirectoryExists(path)) 77 path.clear(); 78 79 return path; 80 #else 81 return base::FilePath(); 82 #endif 83 } 84 85 void FinishOnOriginalThread(const DeviceIDCallback& callback, 86 const base::FilePath& database_path) { 87 std::string device_id; 88 if (!database_path.empty()) { 89 device_id = StorageInfo::MakeDeviceId(StorageInfo::PICASA, 90 database_path.AsUTF8Unsafe()); 91 } 92 callback.Run(device_id); 93 } 94 95 } // namespace 96 97 void FindPicasaDatabase(const DeviceIDCallback& callback) { 98 content::BrowserThread::PostTaskAndReplyWithResult( 99 content::BrowserThread::FILE, 100 FROM_HERE, 101 base::Bind(&FindPicasaDatabaseOnFileThread), 102 base::Bind(&FinishOnOriginalThread, callback)); 103 } 104 105 base::FilePath MakePicasaDatabasePath( 106 const base::FilePath& picasa_app_data_path) { 107 #if defined(OS_WIN) 108 return picasa_app_data_path.AppendASCII("Google").AppendASCII("Picasa2") 109 .AppendASCII(kPicasaDatabaseDirName); 110 #elif defined(OS_MACOSX) 111 return picasa_app_data_path.AppendASCII("Google").AppendASCII("Picasa3") 112 .AppendASCII(kPicasaDatabaseDirName); 113 #else 114 return base::FilePath(); 115 #endif 116 } 117 118 } // namespace picasa 119
