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| 1 // Copyright (c) 2011 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 "webkit/fileapi/file_system_path_manager.h" | |
| 6 | |
| 7 #include "base/rand_util.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 #include "base/message_loop.h" | |
| 11 #include "base/message_loop_proxy.h" | |
| 12 #include "base/stringprintf.h" | |
| 13 #include "base/string_util.h" | |
| 14 #include "base/utf_string_conversions.h" | |
| 15 #include "googleurl/src/gurl.h" | |
| 16 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFileSyste
m.h" | |
| 17 #include "webkit/fileapi/file_system_util.h" | |
| 18 #include "webkit/fileapi/sandbox_mount_point_provider.h" | |
| 19 #include "webkit/glue/webkit_glue.h" | |
| 20 | |
| 21 #if defined(OS_CHROMEOS) | |
| 22 #include "webkit/chromeos/fileapi/cros_mount_point_provider.h" | |
| 23 #endif | |
| 24 | |
| 25 // We use some of WebKit types for conversions between origin identifiers | |
| 26 // and origin URLs. | |
| 27 using WebKit::WebFileSystem; | |
| 28 | |
| 29 using base::PlatformFileError; | |
| 30 | |
| 31 static const char kChromeScheme[] = "chrome"; | |
| 32 static const char kExtensionScheme[] = "chrome-extension"; | |
| 33 | |
| 34 namespace fileapi { | |
| 35 | |
| 36 FileSystemPathManager::FileSystemPathManager( | |
| 37 scoped_refptr<base::MessageLoopProxy> file_message_loop, | |
| 38 const FilePath& profile_path, | |
| 39 scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy, | |
| 40 bool is_incognito, | |
| 41 bool allow_file_access_from_files) | |
| 42 : is_incognito_(is_incognito), | |
| 43 allow_file_access_from_files_(allow_file_access_from_files), | |
| 44 sandbox_provider_( | |
| 45 new SandboxMountPointProvider( | |
| 46 ALLOW_THIS_IN_INITIALIZER_LIST(this), | |
| 47 file_message_loop, | |
| 48 profile_path)) { | |
| 49 #if defined(OS_CHROMEOS) | |
| 50 external_provider_.reset( | |
| 51 new chromeos::CrosMountPointProvider(special_storage_policy)); | |
| 52 #endif | |
| 53 } | |
| 54 | |
| 55 FileSystemPathManager::~FileSystemPathManager() {} | |
| 56 | |
| 57 void FileSystemPathManager::ValidateFileSystemRootAndGetURL( | |
| 58 const GURL& origin_url, fileapi::FileSystemType type, bool create, | |
| 59 const GetRootPathCallback& callback) { | |
| 60 FileSystemMountPointProvider* mount_point_provider = | |
| 61 GetMountPointProvider(type); | |
| 62 if (!mount_point_provider) { | |
| 63 callback.Run(false, FilePath(), std::string()); | |
| 64 return; | |
| 65 } | |
| 66 mount_point_provider->ValidateFileSystemRootAndGetURL( | |
| 67 origin_url, type, create, callback); | |
| 68 } | |
| 69 | |
| 70 FilePath FileSystemPathManager::ValidateFileSystemRootAndGetPathOnFileThread( | |
| 71 const GURL& origin_url, FileSystemType type, const FilePath& virtual_path, | |
| 72 bool create) { | |
| 73 FileSystemMountPointProvider* mount_point_provider = | |
| 74 GetMountPointProvider(type); | |
| 75 if (!mount_point_provider) | |
| 76 return FilePath(); | |
| 77 return mount_point_provider->ValidateFileSystemRootAndGetPathOnFileThread( | |
| 78 origin_url, type, virtual_path, create); | |
| 79 } | |
| 80 | |
| 81 bool FileSystemPathManager::IsAllowedScheme(const GURL& url) const { | |
| 82 // Basically we only accept http or https. We allow file:// URLs | |
| 83 // only if --allow-file-access-from-files flag is given. | |
| 84 return url.SchemeIs("http") || url.SchemeIs("https") || | |
| 85 url.SchemeIs(kExtensionScheme) || url.SchemeIs(kChromeScheme) || | |
| 86 (url.SchemeIsFile() && allow_file_access_from_files_); | |
| 87 } | |
| 88 | |
| 89 // static | |
| 90 std::string FileSystemPathManager::GetFileSystemTypeString( | |
| 91 fileapi::FileSystemType type) { | |
| 92 if (type == fileapi::kFileSystemTypeTemporary) | |
| 93 return fileapi::kTemporaryName; | |
| 94 else if (type == fileapi::kFileSystemTypePersistent) | |
| 95 return fileapi::kPersistentName; | |
| 96 else if (type == fileapi::kFileSystemTypeExternal) | |
| 97 return fileapi::kExternalName; | |
| 98 return std::string(); | |
| 99 } | |
| 100 | |
| 101 // Checks if a given |name| contains any restricted names/chars in it. | |
| 102 bool FileSystemPathManager::IsRestrictedFileName( | |
| 103 FileSystemType type, const FilePath& filename) { | |
| 104 FileSystemMountPointProvider* mount_point_provider = | |
| 105 GetMountPointProvider(type); | |
| 106 if (!mount_point_provider) | |
| 107 return true; | |
| 108 return mount_point_provider->IsRestrictedFileName(filename); | |
| 109 } | |
| 110 | |
| 111 // Checks if an origin has access to a particular filesystem type. | |
| 112 bool FileSystemPathManager::IsAccessAllowed( | |
| 113 const GURL& origin, FileSystemType type, const FilePath& virtual_path) { | |
| 114 FileSystemMountPointProvider* mount_point_provider = | |
| 115 GetMountPointProvider(type); | |
| 116 DCHECK(mount_point_provider); | |
| 117 return mount_point_provider->IsAccessAllowed(origin, type, virtual_path); | |
| 118 } | |
| 119 | |
| 120 FileSystemFileUtil* FileSystemPathManager::GetFileUtil( | |
| 121 FileSystemType type) const { | |
| 122 FileSystemMountPointProvider* mount_point_provider = | |
| 123 GetMountPointProvider(type); | |
| 124 DCHECK(mount_point_provider); | |
| 125 return mount_point_provider->GetFileUtil(); | |
| 126 } | |
| 127 | |
| 128 FileSystemMountPointProvider* FileSystemPathManager::GetMountPointProvider( | |
| 129 FileSystemType type) const { | |
| 130 switch (type) { | |
| 131 case kFileSystemTypeTemporary: | |
| 132 case kFileSystemTypePersistent: | |
| 133 return sandbox_provider(); | |
| 134 case kFileSystemTypeExternal: | |
| 135 return external_provider(); | |
| 136 case kFileSystemTypeUnknown: | |
| 137 default: | |
| 138 NOTREACHED(); | |
| 139 return NULL; | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 } // namespace fileapi | |
| 144 | |
| 145 COMPILE_ASSERT(int(WebFileSystem::TypeTemporary) == \ | |
| 146 int(fileapi::kFileSystemTypeTemporary), mismatching_enums); | |
| 147 COMPILE_ASSERT(int(WebFileSystem::TypePersistent) == \ | |
| 148 int(fileapi::kFileSystemTypePersistent), mismatching_enums); | |
| 149 COMPILE_ASSERT(int(WebFileSystem::TypeExternal) == \ | |
| 150 int(fileapi::kFileSystemTypeExternal), mismatching_enums); | |
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