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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/obfuscated_file_system_file_util.h" | |
| 6 | |
| 7 #include <queue> | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/file_util.h" | |
| 11 #include "base/format_macros.h" | |
| 12 #include "base/logging.h" | |
| 13 #include "base/message_loop.h" | |
| 14 #include "base/stl_util.h" | |
| 15 #include "base/string_number_conversions.h" | |
| 16 #include "base/stringprintf.h" | |
| 17 #include "base/sys_string_conversions.h" | |
| 18 #include "googleurl/src/gurl.h" | |
| 19 #include "webkit/fileapi/file_system_context.h" | |
| 20 #include "webkit/fileapi/file_system_operation_context.h" | |
| 21 #include "webkit/fileapi/file_system_path_manager.h" | |
| 22 #include "webkit/fileapi/file_system_util.h" | |
| 23 #include "webkit/fileapi/sandbox_mount_point_provider.h" | |
| 24 | |
| 25 namespace { | |
| 26 | |
| 27 const int64 kFlushDelaySeconds = 10 * 60; // 10 minutes | |
| 28 | |
| 29 const char kOriginDatabaseName[] = "Origins"; | |
| 30 const char kDirectoryDatabaseName[] = "Paths"; | |
| 31 | |
| 32 void InitFileInfo( | |
| 33 fileapi::FileSystemDirectoryDatabase::FileInfo* file_info, | |
| 34 fileapi::FileSystemDirectoryDatabase::FileId parent_id, | |
| 35 const FilePath::StringType& file_name) { | |
| 36 DCHECK(file_info); | |
| 37 file_info->parent_id = parent_id; | |
| 38 file_info->name = file_name; | |
| 39 } | |
| 40 | |
| 41 bool IsRootDirectory(const FilePath& virtual_path) { | |
| 42 return (virtual_path.empty() || | |
| 43 virtual_path.value() == FILE_PATH_LITERAL("/")); | |
| 44 } | |
| 45 | |
| 46 const FilePath::CharType kLegacyDataDirectory[] = FILE_PATH_LITERAL("Legacy"); | |
| 47 | |
| 48 const FilePath::CharType kTemporaryDirectoryName[] = FILE_PATH_LITERAL("t"); | |
| 49 const FilePath::CharType kPersistentDirectoryName[] = FILE_PATH_LITERAL("p"); | |
| 50 | |
| 51 } // namespace | |
| 52 | |
| 53 namespace fileapi { | |
| 54 | |
| 55 using base::PlatformFile; | |
| 56 using base::PlatformFileError; | |
| 57 | |
| 58 ObfuscatedFileSystemFileUtil::ObfuscatedFileSystemFileUtil( | |
| 59 const FilePath& file_system_directory, | |
| 60 FileSystemFileUtil* underlying_file_util) | |
| 61 : file_system_directory_(file_system_directory), | |
| 62 underlying_file_util_(underlying_file_util) { | |
| 63 } | |
| 64 | |
| 65 ObfuscatedFileSystemFileUtil::~ObfuscatedFileSystemFileUtil() { | |
| 66 DropDatabases(); | |
| 67 } | |
| 68 | |
| 69 PlatformFileError ObfuscatedFileSystemFileUtil::CreateOrOpen( | |
| 70 FileSystemOperationContext* context, | |
| 71 const FilePath& virtual_path, int file_flags, | |
| 72 PlatformFile* file_handle, bool* created) { | |
| 73 DCHECK(!(file_flags & (base::PLATFORM_FILE_DELETE_ON_CLOSE | | |
| 74 base::PLATFORM_FILE_HIDDEN | base::PLATFORM_FILE_EXCLUSIVE_READ | | |
| 75 base::PLATFORM_FILE_EXCLUSIVE_WRITE))); | |
| 76 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 77 context->src_origin_url(), context->src_type(), true); | |
| 78 if (!db) | |
| 79 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 80 FileId file_id; | |
| 81 if (!db->GetFileWithPath(virtual_path, &file_id)) { | |
| 82 // The file doesn't exist. | |
| 83 if (!(file_flags & (base::PLATFORM_FILE_CREATE | | |
| 84 base::PLATFORM_FILE_CREATE_ALWAYS | base::PLATFORM_FILE_OPEN_ALWAYS))) | |
| 85 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 86 FileId parent_id; | |
| 87 if (!db->GetFileWithPath(virtual_path.DirName(), &parent_id)) | |
| 88 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 89 FileInfo file_info; | |
| 90 InitFileInfo(&file_info, parent_id, virtual_path.BaseName().value()); | |
| 91 PlatformFileError error = CreateFile( | |
| 92 context, context->src_origin_url(), context->src_type(), FilePath(), | |
| 93 &file_info, file_flags, file_handle); | |
| 94 if (created && base::PLATFORM_FILE_OK == error) | |
| 95 *created = true; | |
| 96 return error; | |
| 97 } | |
| 98 if (file_flags & base::PLATFORM_FILE_CREATE) | |
| 99 return base::PLATFORM_FILE_ERROR_EXISTS; | |
| 100 | |
| 101 FileInfo file_info; | |
| 102 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 103 NOTREACHED(); | |
| 104 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 105 } | |
| 106 if (file_info.is_directory()) | |
| 107 return base::PLATFORM_FILE_ERROR_NOT_A_FILE; | |
| 108 FilePath data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 109 context->src_type(), file_info.data_path); | |
| 110 return underlying_file_util_->CreateOrOpen( | |
| 111 context, data_path, file_flags, file_handle, created); | |
| 112 } | |
| 113 | |
| 114 PlatformFileError ObfuscatedFileSystemFileUtil::EnsureFileExists( | |
| 115 FileSystemOperationContext* context, | |
| 116 const FilePath& virtual_path, | |
| 117 bool* created) { | |
| 118 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 119 context->src_origin_url(), context->src_type(), true); | |
| 120 if (!db) | |
| 121 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 122 FileId file_id; | |
| 123 if (db->GetFileWithPath(virtual_path, &file_id)) { | |
| 124 FileInfo file_info; | |
| 125 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 126 NOTREACHED(); | |
| 127 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 128 } | |
| 129 if (file_info.is_directory()) | |
| 130 return base::PLATFORM_FILE_ERROR_NOT_A_FILE; | |
| 131 if (created) | |
| 132 *created = false; | |
| 133 return base::PLATFORM_FILE_OK; | |
| 134 } | |
| 135 FileId parent_id; | |
| 136 if (!db->GetFileWithPath(virtual_path.DirName(), &parent_id)) | |
| 137 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 138 | |
| 139 FileInfo file_info; | |
| 140 InitFileInfo(&file_info, parent_id, virtual_path.BaseName().value()); | |
| 141 PlatformFileError error = CreateFile(context, context->src_origin_url(), | |
| 142 context->src_type(), FilePath(), &file_info, 0, NULL); | |
| 143 if (created && base::PLATFORM_FILE_OK == error) | |
| 144 *created = true; | |
| 145 return error; | |
| 146 } | |
| 147 | |
| 148 PlatformFileError ObfuscatedFileSystemFileUtil::GetLocalFilePath( | |
| 149 FileSystemOperationContext* context, | |
| 150 const FilePath& virtual_path, | |
| 151 FilePath* local_path) { | |
| 152 FilePath path = | |
| 153 GetLocalPath(context->src_origin_url(), context->src_type(), | |
| 154 virtual_path); | |
| 155 if (path.empty()) | |
| 156 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 157 | |
| 158 *local_path = path; | |
| 159 return base::PLATFORM_FILE_OK; | |
| 160 } | |
| 161 | |
| 162 PlatformFileError ObfuscatedFileSystemFileUtil::GetFileInfo( | |
| 163 FileSystemOperationContext* context, | |
| 164 const FilePath& virtual_path, | |
| 165 base::PlatformFileInfo* file_info, | |
| 166 FilePath* platform_file_path) { | |
| 167 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 168 context->src_origin_url(), context->src_type(), false); | |
| 169 if (!db) | |
| 170 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 171 FileId file_id; | |
| 172 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 173 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 174 FileInfo local_info; | |
| 175 return GetFileInfoInternal(db, context, file_id, | |
| 176 &local_info, file_info, platform_file_path); | |
| 177 } | |
| 178 | |
| 179 PlatformFileError ObfuscatedFileSystemFileUtil::ReadDirectory( | |
| 180 FileSystemOperationContext* context, | |
| 181 const FilePath& virtual_path, | |
| 182 std::vector<base::FileUtilProxy::Entry>* entries) { | |
| 183 // TODO(kkanetkar): Implement directory read in multiple chunks. | |
| 184 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 185 context->src_origin_url(), context->src_type(), false); | |
| 186 if (!db) { | |
| 187 if (IsRootDirectory(virtual_path)) { | |
| 188 // It's the root directory and the database hasn't been initialized yet. | |
| 189 entries->clear(); | |
| 190 return base::PLATFORM_FILE_OK; | |
| 191 } | |
| 192 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 193 } | |
| 194 FileId file_id; | |
| 195 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 196 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 197 FileInfo file_info; | |
| 198 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 199 DCHECK(!file_id); | |
| 200 // It's the root directory and the database hasn't been initialized yet. | |
| 201 entries->clear(); | |
| 202 return base::PLATFORM_FILE_OK; | |
| 203 } | |
| 204 if (!file_info.is_directory()) | |
| 205 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 206 std::vector<FileId> children; | |
| 207 if (!db->ListChildren(file_id, &children)) { | |
| 208 NOTREACHED(); | |
| 209 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 210 } | |
| 211 std::vector<FileId>::iterator iter; | |
| 212 for (iter = children.begin(); iter != children.end(); ++iter) { | |
| 213 base::PlatformFileInfo platform_file_info; | |
| 214 FilePath file_path; | |
| 215 if (GetFileInfoInternal(db, context, *iter, | |
| 216 &file_info, &platform_file_info, &file_path) != | |
| 217 base::PLATFORM_FILE_OK) { | |
| 218 NOTREACHED(); | |
| 219 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 220 } | |
| 221 | |
| 222 base::FileUtilProxy::Entry entry; | |
| 223 entry.name = file_info.name; | |
| 224 entry.is_directory = file_info.is_directory(); | |
| 225 entry.size = entry.is_directory ? 0 : platform_file_info.size; | |
| 226 entry.last_modified_time = platform_file_info.last_modified; | |
| 227 entries->push_back(entry); | |
| 228 } | |
| 229 return base::PLATFORM_FILE_OK; | |
| 230 } | |
| 231 | |
| 232 PlatformFileError ObfuscatedFileSystemFileUtil::CreateDirectory( | |
| 233 FileSystemOperationContext* context, | |
| 234 const FilePath& virtual_path, | |
| 235 bool exclusive, | |
| 236 bool recursive) { | |
| 237 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 238 context->src_origin_url(), context->src_type(), true); | |
| 239 if (!db) | |
| 240 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 241 FileId file_id; | |
| 242 if (db->GetFileWithPath(virtual_path, &file_id)) { | |
| 243 FileInfo file_info; | |
| 244 if (exclusive) | |
| 245 return base::PLATFORM_FILE_ERROR_EXISTS; | |
| 246 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 247 NOTREACHED(); | |
| 248 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 249 } | |
| 250 if (!file_info.is_directory()) | |
| 251 return base::PLATFORM_FILE_ERROR_NOT_A_DIRECTORY; | |
| 252 return base::PLATFORM_FILE_OK; | |
| 253 } | |
| 254 | |
| 255 std::vector<FilePath::StringType> components; | |
| 256 virtual_path.GetComponents(&components); | |
| 257 FileId parent_id = 0; | |
| 258 size_t index; | |
| 259 for (index = 0; index < components.size(); ++index) { | |
| 260 FilePath::StringType name = components[index]; | |
| 261 if (name == FILE_PATH_LITERAL("/")) | |
| 262 continue; | |
| 263 if (!db->GetChildWithName(parent_id, name, &parent_id)) | |
| 264 break; | |
| 265 } | |
| 266 if (!recursive && components.size() - index > 1) | |
| 267 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 268 // TODO(dmikurube): Eliminate do_not_write_actually in future. | |
| 269 bool do_not_write_actually = context->do_not_write_actually(); | |
| 270 context->set_do_not_write_actually(true); | |
| 271 underlying_file_util_->CreateDirectory(context, | |
| 272 FilePath(), exclusive, recursive); | |
| 273 context->set_do_not_write_actually(do_not_write_actually); | |
| 274 for (; index < components.size(); ++index) { | |
| 275 FileInfo file_info; | |
| 276 file_info.name = components[index]; | |
| 277 if (file_info.name == FILE_PATH_LITERAL("/")) | |
| 278 continue; | |
| 279 file_info.modification_time = base::Time::Now(); | |
| 280 file_info.parent_id = parent_id; | |
| 281 if (!db->AddFileInfo(file_info, &parent_id)) { | |
| 282 NOTREACHED(); | |
| 283 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 284 } | |
| 285 } | |
| 286 return base::PLATFORM_FILE_OK; | |
| 287 } | |
| 288 | |
| 289 PlatformFileError ObfuscatedFileSystemFileUtil::CopyOrMoveFile( | |
| 290 FileSystemOperationContext* context, | |
| 291 const FilePath& src_file_path, | |
| 292 const FilePath& dest_file_path, | |
| 293 bool copy) { | |
| 294 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 295 context->src_origin_url(), context->src_type(), true); | |
| 296 if (!db) | |
| 297 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 298 FileId src_file_id; | |
| 299 if (!db->GetFileWithPath(src_file_path, &src_file_id)) | |
| 300 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 301 FileId dest_file_id; | |
| 302 bool overwrite = db->GetFileWithPath(dest_file_path, &dest_file_id); | |
| 303 FileInfo src_file_info; | |
| 304 FileInfo dest_file_info; | |
| 305 if (!db->GetFileInfo(src_file_id, &src_file_info) || | |
| 306 src_file_info.is_directory()) { | |
| 307 NOTREACHED(); | |
| 308 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 309 } | |
| 310 if (overwrite) { | |
| 311 if (!db->GetFileInfo(dest_file_id, &dest_file_info) || | |
| 312 dest_file_info.is_directory()) { | |
| 313 NOTREACHED(); | |
| 314 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 315 } | |
| 316 } | |
| 317 /* | |
| 318 * Copy-with-overwrite | |
| 319 * Just overwrite data file | |
| 320 * Copy-without-overwrite | |
| 321 * Copy backing file | |
| 322 * Create new metadata pointing to new backing file. | |
| 323 * Move-with-overwrite | |
| 324 * transaction: | |
| 325 * Remove source entry. | |
| 326 * Point target entry to source entry's backing file. | |
| 327 * Delete target entry's old backing file | |
| 328 * Move-without-overwrite | |
| 329 * Just update metadata | |
| 330 */ | |
| 331 if (copy) { | |
| 332 FilePath src_data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 333 context->src_type(), src_file_info.data_path); | |
| 334 if (overwrite) { | |
| 335 FilePath dest_data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 336 context->src_type(), dest_file_info.data_path); | |
| 337 return underlying_file_util_->CopyOrMoveFile(context, | |
| 338 src_data_path, dest_data_path, copy); | |
| 339 } else { | |
| 340 FileId dest_parent_id; | |
| 341 if (!db->GetFileWithPath(dest_file_path.DirName(), &dest_parent_id)) { | |
| 342 NOTREACHED(); // We shouldn't be called in this case. | |
| 343 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 344 } | |
| 345 InitFileInfo(&dest_file_info, dest_parent_id, | |
| 346 dest_file_path.BaseName().value()); | |
| 347 return CreateFile(context, context->dest_origin_url(), | |
| 348 context->dest_type(), src_data_path, &dest_file_info, 0, | |
| 349 NULL); | |
| 350 } | |
| 351 } else { // It's a move. | |
| 352 if (overwrite) { | |
| 353 if (!db->OverwritingMoveFile(src_file_id, dest_file_id)) | |
| 354 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 355 FilePath dest_data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 356 context->src_type(), dest_file_info.data_path); | |
| 357 if (base::PLATFORM_FILE_OK != | |
| 358 underlying_file_util_->DeleteFile(context, dest_data_path)) | |
| 359 LOG(WARNING) << "Leaked a backing file."; | |
| 360 return base::PLATFORM_FILE_OK; | |
| 361 } else { | |
| 362 FileId dest_parent_id; | |
| 363 if (!db->GetFileWithPath(dest_file_path.DirName(), &dest_parent_id)) { | |
| 364 NOTREACHED(); | |
| 365 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 366 } | |
| 367 src_file_info.parent_id = dest_parent_id; | |
| 368 src_file_info.name = dest_file_path.BaseName().value(); | |
| 369 if (!db->UpdateFileInfo(src_file_id, src_file_info)) | |
| 370 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 371 return base::PLATFORM_FILE_OK; | |
| 372 } | |
| 373 } | |
| 374 NOTREACHED(); | |
| 375 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 376 } | |
| 377 | |
| 378 PlatformFileError ObfuscatedFileSystemFileUtil::CopyInForeignFile( | |
| 379 FileSystemOperationContext* context, | |
| 380 const FilePath& src_file_path, | |
| 381 const FilePath& dest_file_path) { | |
| 382 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 383 context->dest_origin_url(), context->dest_type(), true); | |
| 384 if (!db) | |
| 385 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 386 FileId dest_file_id; | |
| 387 bool overwrite = db->GetFileWithPath(dest_file_path, &dest_file_id); | |
| 388 FileInfo dest_file_info; | |
| 389 if (overwrite) { | |
| 390 if (!db->GetFileInfo(dest_file_id, &dest_file_info) || | |
| 391 dest_file_info.is_directory()) { | |
| 392 NOTREACHED(); | |
| 393 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 394 } | |
| 395 FilePath dest_data_path = DataPathToLocalPath(context->dest_origin_url(), | |
| 396 context->dest_type(), dest_file_info.data_path); | |
| 397 return underlying_file_util_->CopyOrMoveFile(context, | |
| 398 src_file_path, dest_data_path, true /* copy */); | |
| 399 } else { | |
| 400 FileId dest_parent_id; | |
| 401 if (!db->GetFileWithPath(dest_file_path.DirName(), &dest_parent_id)) { | |
| 402 NOTREACHED(); // We shouldn't be called in this case. | |
| 403 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 404 } | |
| 405 InitFileInfo(&dest_file_info, dest_parent_id, | |
| 406 dest_file_path.BaseName().value()); | |
| 407 return CreateFile(context, context->dest_origin_url(), | |
| 408 context->dest_type(), src_file_path, &dest_file_info, 0, NULL); | |
| 409 } | |
| 410 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 411 } | |
| 412 | |
| 413 PlatformFileError ObfuscatedFileSystemFileUtil::DeleteFile( | |
| 414 FileSystemOperationContext* context, | |
| 415 const FilePath& virtual_path) { | |
| 416 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 417 context->src_origin_url(), context->src_type(), true); | |
| 418 if (!db) | |
| 419 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 420 FileId file_id; | |
| 421 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 422 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 423 FileInfo file_info; | |
| 424 if (!db->GetFileInfo(file_id, &file_info) || file_info.is_directory()) { | |
| 425 NOTREACHED(); | |
| 426 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 427 } | |
| 428 if (!db->RemoveFileInfo(file_id)) { | |
| 429 NOTREACHED(); | |
| 430 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 431 } | |
| 432 FilePath data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 433 context->src_type(), file_info.data_path); | |
| 434 if (base::PLATFORM_FILE_OK != | |
| 435 underlying_file_util_->DeleteFile(context, data_path)) | |
| 436 LOG(WARNING) << "Leaked a backing file."; | |
| 437 return base::PLATFORM_FILE_OK; | |
| 438 } | |
| 439 | |
| 440 PlatformFileError ObfuscatedFileSystemFileUtil::DeleteSingleDirectory( | |
| 441 FileSystemOperationContext* context, | |
| 442 const FilePath& virtual_path) { | |
| 443 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 444 context->src_origin_url(), context->src_type(), true); | |
| 445 if (!db) | |
| 446 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 447 FileId file_id; | |
| 448 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 449 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 450 FileInfo file_info; | |
| 451 if (!db->GetFileInfo(file_id, &file_info) || !file_info.is_directory()) { | |
| 452 NOTREACHED(); | |
| 453 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 454 } | |
| 455 if (!db->RemoveFileInfo(file_id)) | |
| 456 return base::PLATFORM_FILE_ERROR_NOT_EMPTY; | |
| 457 return base::PLATFORM_FILE_OK; | |
| 458 } | |
| 459 | |
| 460 PlatformFileError ObfuscatedFileSystemFileUtil::Touch( | |
| 461 FileSystemOperationContext* context, | |
| 462 const FilePath& virtual_path, | |
| 463 const base::Time& last_access_time, | |
| 464 const base::Time& last_modified_time) { | |
| 465 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 466 context->src_origin_url(), context->src_type(), true); | |
| 467 if (!db) | |
| 468 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 469 FileId file_id; | |
| 470 if (db->GetFileWithPath(virtual_path, &file_id)) { | |
| 471 FileInfo file_info; | |
| 472 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 473 NOTREACHED(); | |
| 474 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 475 } | |
| 476 if (file_info.is_directory()) { | |
| 477 file_info.modification_time = last_modified_time; | |
| 478 if (!db->UpdateFileInfo(file_id, file_info)) | |
| 479 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 480 return base::PLATFORM_FILE_OK; | |
| 481 } | |
| 482 FilePath data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 483 context->src_type(), file_info.data_path); | |
| 484 return underlying_file_util_->Touch( | |
| 485 context, data_path, last_access_time, last_modified_time); | |
| 486 } | |
| 487 FileId parent_id; | |
| 488 if (!db->GetFileWithPath(virtual_path.DirName(), &parent_id)) | |
| 489 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 490 | |
| 491 FileInfo file_info; | |
| 492 InitFileInfo(&file_info, parent_id, virtual_path.BaseName().value()); | |
| 493 // In the event of a sporadic underlying failure, we might create a new file, | |
| 494 // but fail to update its mtime + atime. | |
| 495 PlatformFileError error = CreateFile(context, context->src_origin_url(), | |
| 496 context->src_type(), FilePath(), &file_info, 0, NULL); | |
| 497 if (base::PLATFORM_FILE_OK != error) | |
| 498 return error; | |
| 499 | |
| 500 FilePath data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 501 context->src_type(), file_info.data_path); | |
| 502 return underlying_file_util_->Touch(context, data_path, | |
| 503 last_access_time, last_modified_time); | |
| 504 } | |
| 505 | |
| 506 PlatformFileError ObfuscatedFileSystemFileUtil::Truncate( | |
| 507 FileSystemOperationContext* context, | |
| 508 const FilePath& virtual_path, | |
| 509 int64 length) { | |
| 510 FilePath local_path = | |
| 511 GetLocalPath(context->src_origin_url(), context->src_type(), | |
| 512 virtual_path); | |
| 513 if (local_path.empty()) | |
| 514 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 515 return underlying_file_util_->Truncate( | |
| 516 context, local_path, length); | |
| 517 } | |
| 518 | |
| 519 bool ObfuscatedFileSystemFileUtil::PathExists( | |
| 520 FileSystemOperationContext* context, | |
| 521 const FilePath& virtual_path) { | |
| 522 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 523 context->src_origin_url(), context->src_type(), false); | |
| 524 if (!db) | |
| 525 return false; | |
| 526 FileId file_id; | |
| 527 return db->GetFileWithPath(virtual_path, &file_id); | |
| 528 } | |
| 529 | |
| 530 bool ObfuscatedFileSystemFileUtil::DirectoryExists( | |
| 531 FileSystemOperationContext* context, | |
| 532 const FilePath& virtual_path) { | |
| 533 if (IsRootDirectory(virtual_path)) { | |
| 534 // It's questionable whether we should return true or false for the | |
| 535 // root directory of nonexistent origin, but here we return true | |
| 536 // as the current implementation of ReadDirectory always returns an empty | |
| 537 // array (rather than erroring out with NOT_FOUND_ERR even) for | |
| 538 // nonexistent origins. | |
| 539 // Note: if you're going to change this behavior please also consider | |
| 540 // changiing the ReadDirectory's behavior! | |
| 541 return true; | |
| 542 } | |
| 543 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 544 context->src_origin_url(), context->src_type(), false); | |
| 545 if (!db) | |
| 546 return false; | |
| 547 FileId file_id; | |
| 548 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 549 return false; | |
| 550 FileInfo file_info; | |
| 551 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 552 NOTREACHED(); | |
| 553 return false; | |
| 554 } | |
| 555 return file_info.is_directory(); | |
| 556 } | |
| 557 | |
| 558 bool ObfuscatedFileSystemFileUtil::IsDirectoryEmpty( | |
| 559 FileSystemOperationContext* context, | |
| 560 const FilePath& virtual_path) { | |
| 561 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 562 context->src_origin_url(), context->src_type(), false); | |
| 563 if (!db) | |
| 564 return true; // Not a great answer, but it's what others do. | |
| 565 FileId file_id; | |
| 566 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 567 return true; // Ditto. | |
| 568 FileInfo file_info; | |
| 569 if (!db->GetFileInfo(file_id, &file_info)) { | |
| 570 DCHECK(!file_id); | |
| 571 // It's the root directory and the database hasn't been initialized yet. | |
| 572 return true; | |
| 573 } | |
| 574 if (!file_info.is_directory()) | |
| 575 return true; | |
| 576 std::vector<FileId> children; | |
| 577 // TODO(ericu): This could easily be made faster with help from the database. | |
| 578 if (!db->ListChildren(file_id, &children)) | |
| 579 return true; | |
| 580 return children.empty(); | |
| 581 } | |
| 582 | |
| 583 class ObfuscatedFileSystemFileEnumerator | |
| 584 : public FileSystemFileUtil::AbstractFileEnumerator { | |
| 585 public: | |
| 586 ObfuscatedFileSystemFileEnumerator( | |
| 587 FileSystemDirectoryDatabase* db, const FilePath& virtual_root_path) | |
| 588 : db_(db) { | |
| 589 FileId file_id; | |
| 590 FileInfo file_info; | |
| 591 if (!db_->GetFileWithPath(virtual_root_path, &file_id)) | |
| 592 return; | |
| 593 if (!db_->GetFileInfo(file_id, &file_info)) | |
| 594 return; | |
| 595 if (!file_info.is_directory()) | |
| 596 return; | |
| 597 FileRecord record = { file_id, file_info, virtual_root_path }; | |
| 598 display_queue_.push(record); | |
| 599 Next(); // Enumerators don't include the directory itself. | |
| 600 } | |
| 601 | |
| 602 ~ObfuscatedFileSystemFileEnumerator() {} | |
| 603 | |
| 604 virtual FilePath Next() { | |
| 605 ProcessRecurseQueue(); | |
| 606 if (display_queue_.empty()) | |
| 607 return FilePath(); | |
| 608 current_ = display_queue_.front(); | |
| 609 display_queue_.pop(); | |
| 610 if (current_.file_info.is_directory()) | |
| 611 recurse_queue_.push(current_); | |
| 612 return current_.file_path; | |
| 613 } | |
| 614 | |
| 615 virtual bool IsDirectory() { | |
| 616 return current_.file_info.is_directory(); | |
| 617 } | |
| 618 | |
| 619 private: | |
| 620 typedef FileSystemDirectoryDatabase::FileId FileId; | |
| 621 typedef FileSystemDirectoryDatabase::FileInfo FileInfo; | |
| 622 | |
| 623 struct FileRecord { | |
| 624 FileId file_id; | |
| 625 FileInfo file_info; | |
| 626 FilePath file_path; | |
| 627 }; | |
| 628 | |
| 629 void ProcessRecurseQueue() { | |
| 630 while (display_queue_.empty() && !recurse_queue_.empty()) { | |
| 631 FileRecord directory = recurse_queue_.front(); | |
| 632 std::vector<FileId> children; | |
| 633 recurse_queue_.pop(); | |
| 634 if (!db_->ListChildren(directory.file_id, &children)) | |
| 635 return; | |
| 636 std::vector<FileId>::iterator iter; | |
| 637 for (iter = children.begin(); iter != children.end(); ++iter) { | |
| 638 FileRecord child; | |
| 639 child.file_id = *iter; | |
| 640 if (!db_->GetFileInfo(child.file_id, &child.file_info)) | |
| 641 return; | |
| 642 child.file_path = directory.file_path.Append(child.file_info.name); | |
| 643 display_queue_.push(child); | |
| 644 } | |
| 645 } | |
| 646 } | |
| 647 | |
| 648 std::queue<FileRecord> display_queue_; | |
| 649 std::queue<FileRecord> recurse_queue_; | |
| 650 FileRecord current_; | |
| 651 FileSystemDirectoryDatabase* db_; | |
| 652 }; | |
| 653 | |
| 654 class ObfuscatedFileSystemOriginEnumerator | |
| 655 : public ObfuscatedFileSystemFileUtil::AbstractOriginEnumerator { | |
| 656 public: | |
| 657 typedef FileSystemOriginDatabase::OriginRecord OriginRecord; | |
| 658 ObfuscatedFileSystemOriginEnumerator( | |
| 659 FileSystemOriginDatabase* origin_database, | |
| 660 const FilePath& base_path) | |
| 661 : base_path_(base_path) { | |
| 662 if (origin_database) | |
| 663 origin_database->ListAllOrigins(&origins_); | |
| 664 } | |
| 665 | |
| 666 ~ObfuscatedFileSystemOriginEnumerator() {} | |
| 667 | |
| 668 // Returns the next origin. Returns empty if there are no more origins. | |
| 669 virtual GURL Next() OVERRIDE { | |
| 670 OriginRecord record; | |
| 671 if (!origins_.empty()) { | |
| 672 record = origins_.back(); | |
| 673 origins_.pop_back(); | |
| 674 } | |
| 675 current_ = record; | |
| 676 return GetOriginURLFromIdentifier(record.origin); | |
| 677 } | |
| 678 | |
| 679 // Returns the current origin's information. | |
| 680 virtual bool HasFileSystemType(FileSystemType type) const OVERRIDE { | |
| 681 if (current_.path.empty()) | |
| 682 return false; | |
| 683 FilePath::StringType type_string = | |
| 684 ObfuscatedFileSystemFileUtil::GetDirectoryNameForType(type); | |
| 685 if (type_string.empty()) { | |
| 686 NOTREACHED(); | |
| 687 return false; | |
| 688 } | |
| 689 FilePath path = base_path_.Append(current_.path).Append(type_string); | |
| 690 return file_util::DirectoryExists(path); | |
| 691 } | |
| 692 | |
| 693 private: | |
| 694 std::vector<OriginRecord> origins_; | |
| 695 OriginRecord current_; | |
| 696 FilePath base_path_; | |
| 697 }; | |
| 698 | |
| 699 ObfuscatedFileSystemFileUtil::AbstractOriginEnumerator* | |
| 700 ObfuscatedFileSystemFileUtil::CreateOriginEnumerator() { | |
| 701 std::vector<FileSystemOriginDatabase::OriginRecord> origins; | |
| 702 | |
| 703 InitOriginDatabase(false); | |
| 704 return new ObfuscatedFileSystemOriginEnumerator( | |
| 705 origin_database_.get(), file_system_directory_); | |
| 706 } | |
| 707 | |
| 708 FileSystemFileUtil::AbstractFileEnumerator* | |
| 709 ObfuscatedFileSystemFileUtil::CreateFileEnumerator( | |
| 710 FileSystemOperationContext* context, | |
| 711 const FilePath& root_path) { | |
| 712 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 713 context->src_origin_url(), context->src_type(), false); | |
| 714 if (!db) | |
| 715 return new FileSystemFileUtil::EmptyFileEnumerator(); | |
| 716 return new ObfuscatedFileSystemFileEnumerator(db, root_path); | |
| 717 } | |
| 718 | |
| 719 PlatformFileError ObfuscatedFileSystemFileUtil::GetFileInfoInternal( | |
| 720 FileSystemDirectoryDatabase* db, | |
| 721 FileSystemOperationContext* context, | |
| 722 FileId file_id, | |
| 723 FileInfo* local_info, | |
| 724 base::PlatformFileInfo* file_info, | |
| 725 FilePath* platform_file_path) { | |
| 726 DCHECK(db); | |
| 727 DCHECK(context); | |
| 728 DCHECK(file_info); | |
| 729 DCHECK(platform_file_path); | |
| 730 | |
| 731 if (!db->GetFileInfo(file_id, local_info)) { | |
| 732 NOTREACHED(); | |
| 733 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 734 } | |
| 735 | |
| 736 if (local_info->is_directory()) { | |
| 737 file_info->is_directory = true; | |
| 738 file_info->is_symbolic_link = false; | |
| 739 file_info->last_modified = local_info->modification_time; | |
| 740 *platform_file_path = FilePath(); | |
| 741 // We don't fill in ctime or atime. | |
| 742 return base::PLATFORM_FILE_OK; | |
| 743 } | |
| 744 if (local_info->data_path.empty()) | |
| 745 return base::PLATFORM_FILE_ERROR_INVALID_OPERATION; | |
| 746 FilePath data_path = DataPathToLocalPath(context->src_origin_url(), | |
| 747 context->src_type(), local_info->data_path); | |
| 748 return underlying_file_util_->GetFileInfo( | |
| 749 context, data_path, file_info, platform_file_path); | |
| 750 } | |
| 751 | |
| 752 PlatformFileError ObfuscatedFileSystemFileUtil::CreateFile( | |
| 753 FileSystemOperationContext* context, | |
| 754 const GURL& origin_url, FileSystemType type, const FilePath& source_path, | |
| 755 FileInfo* file_info, int file_flags, PlatformFile* handle) { | |
| 756 if (handle) | |
| 757 *handle = base::kInvalidPlatformFileValue; | |
| 758 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 759 origin_url, type, true); | |
| 760 int64 number; | |
| 761 if (!db || !db->GetNextInteger(&number)) | |
| 762 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 763 // We use the third- and fourth-to-last digits as the directory. | |
| 764 int64 directory_number = number % 10000 / 100; | |
| 765 FilePath path = | |
| 766 GetDirectoryForOriginAndType(origin_url, type, false); | |
| 767 if (path.empty()) | |
| 768 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 769 | |
| 770 path = path.AppendASCII(StringPrintf("%02" PRIu64, directory_number)); | |
| 771 if (file_util::DirectoryExists(path.DirName())) { | |
| 772 if (!file_util::DirectoryExists(path) && !file_util::CreateDirectory(path)) | |
| 773 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 774 } else { | |
| 775 return base::PLATFORM_FILE_ERROR_NOT_FOUND; | |
| 776 } | |
| 777 path = path.AppendASCII(StringPrintf("%08" PRIu64, number)); | |
| 778 FilePath data_path = LocalPathToDataPath(origin_url, type, path); | |
| 779 if (data_path.empty()) | |
| 780 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 781 PlatformFileError error; | |
| 782 bool created = false; | |
| 783 if (!source_path.empty()) { | |
| 784 DCHECK(!file_flags); | |
| 785 DCHECK(!handle); | |
| 786 error = underlying_file_util_->CopyOrMoveFile( | |
| 787 context, source_path, path, true /* copy */); | |
| 788 created = true; | |
| 789 } else { | |
| 790 if (handle) { | |
| 791 error = underlying_file_util_->CreateOrOpen( | |
| 792 context, path, file_flags, handle, &created); | |
| 793 // If this succeeds, we must close handle on any subsequent error. | |
| 794 } else { | |
| 795 DCHECK(!file_flags); // file_flags is only used by CreateOrOpen. | |
| 796 error = underlying_file_util_->EnsureFileExists( | |
| 797 context, path, &created); | |
| 798 } | |
| 799 } | |
| 800 if (error != base::PLATFORM_FILE_OK) | |
| 801 return error; | |
| 802 | |
| 803 if (!created) { | |
| 804 NOTREACHED(); | |
| 805 if (handle) { | |
| 806 DCHECK_NE(base::kInvalidPlatformFileValue, *handle); | |
| 807 base::ClosePlatformFile(*handle); | |
| 808 underlying_file_util_->DeleteFile(context, path); | |
| 809 } | |
| 810 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 811 } | |
| 812 file_info->data_path = data_path; | |
| 813 FileId file_id; | |
| 814 if (!db->AddFileInfo(*file_info, &file_id)) { | |
| 815 if (handle) { | |
| 816 DCHECK_NE(base::kInvalidPlatformFileValue, *handle); | |
| 817 base::ClosePlatformFile(*handle); | |
| 818 } | |
| 819 underlying_file_util_->DeleteFile(context, path); | |
| 820 return base::PLATFORM_FILE_ERROR_FAILED; | |
| 821 } | |
| 822 | |
| 823 return base::PLATFORM_FILE_OK; | |
| 824 } | |
| 825 | |
| 826 FilePath ObfuscatedFileSystemFileUtil::GetLocalPath( | |
| 827 const GURL& origin_url, | |
| 828 FileSystemType type, | |
| 829 const FilePath& virtual_path) { | |
| 830 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 831 origin_url, type, false); | |
| 832 if (!db) | |
| 833 return FilePath(); | |
| 834 FileId file_id; | |
| 835 if (!db->GetFileWithPath(virtual_path, &file_id)) | |
| 836 return FilePath(); | |
| 837 FileInfo file_info; | |
| 838 if (!db->GetFileInfo(file_id, &file_info) || file_info.is_directory()) { | |
| 839 NOTREACHED(); | |
| 840 return FilePath(); // Directories have no local path. | |
| 841 } | |
| 842 return DataPathToLocalPath(origin_url, type, file_info.data_path); | |
| 843 } | |
| 844 | |
| 845 FilePath ObfuscatedFileSystemFileUtil::GetDirectoryForOriginAndType( | |
| 846 const GURL& origin, FileSystemType type, bool create) { | |
| 847 FilePath origin_dir = GetDirectoryForOrigin(origin, create); | |
| 848 if (origin_dir.empty()) | |
| 849 return FilePath(); | |
| 850 FilePath::StringType type_string = GetDirectoryNameForType(type); | |
| 851 if (type_string.empty()) { | |
| 852 LOG(WARNING) << "Unknown filesystem type requested:" << type; | |
| 853 return FilePath(); | |
| 854 } | |
| 855 FilePath path = origin_dir.Append(type_string); | |
| 856 if (!file_util::DirectoryExists(path) && | |
| 857 (!create || !file_util::CreateDirectory(path))) | |
| 858 return FilePath(); | |
| 859 return path; | |
| 860 } | |
| 861 | |
| 862 bool ObfuscatedFileSystemFileUtil::DeleteDirectoryForOriginAndType( | |
| 863 const GURL& origin, FileSystemType type) { | |
| 864 FilePath origin_type_path = GetDirectoryForOriginAndType(origin, type, false); | |
| 865 if (!file_util::PathExists(origin_type_path)) | |
| 866 return true; | |
| 867 | |
| 868 // TODO(dmikurube): Consider the return value of DestroyDirectoryDatabase. | |
| 869 // We ignore its error now since 1) it doesn't matter the final result, and | |
| 870 // 2) it always returns false in Windows because of LevelDB's implementation. | |
| 871 // Information about failure would be useful for debugging. | |
| 872 DestroyDirectoryDatabase(origin, type); | |
| 873 if (!file_util::Delete(origin_type_path, true /* recursive */)) | |
| 874 return false; | |
| 875 | |
| 876 FilePath origin_path = origin_type_path.DirName(); | |
| 877 DCHECK_EQ(origin_path.value(), GetDirectoryForOrigin(origin, false).value()); | |
| 878 | |
| 879 // Delete the origin directory if the deleted one was the last remaining | |
| 880 // type for the origin. | |
| 881 if (file_util::Delete(origin_path, false /* recursive */)) { | |
| 882 InitOriginDatabase(false); | |
| 883 if (origin_database_.get()) | |
| 884 origin_database_->RemovePathForOrigin(GetOriginIdentifierFromURL(origin)); | |
| 885 } | |
| 886 | |
| 887 // At this point we are sure we had successfully deleted the origin/type | |
| 888 // directory, so just returning true here. | |
| 889 return true; | |
| 890 } | |
| 891 | |
| 892 bool ObfuscatedFileSystemFileUtil::MigrateFromOldSandbox( | |
| 893 const GURL& origin_url, FileSystemType type, const FilePath& src_root) { | |
| 894 if (!DestroyDirectoryDatabase(origin_url, type)) | |
| 895 return false; | |
| 896 FilePath dest_root = GetDirectoryForOriginAndType(origin_url, type, true); | |
| 897 if (dest_root.empty()) | |
| 898 return false; | |
| 899 FileSystemDirectoryDatabase* db = GetDirectoryDatabase( | |
| 900 origin_url, type, true); | |
| 901 if (!db) | |
| 902 return false; | |
| 903 | |
| 904 file_util::FileEnumerator file_enum(src_root, true, | |
| 905 static_cast<file_util::FileEnumerator::FileType>( | |
| 906 file_util::FileEnumerator::FILES | | |
| 907 file_util::FileEnumerator::DIRECTORIES)); | |
| 908 FilePath src_full_path; | |
| 909 size_t root_path_length = src_root.value().length() + 1; // +1 for the slash | |
| 910 while (!(src_full_path = file_enum.Next()).empty()) { | |
| 911 file_util::FileEnumerator::FindInfo info; | |
| 912 file_enum.GetFindInfo(&info); | |
| 913 FilePath relative_virtual_path = | |
| 914 FilePath(src_full_path.value().substr(root_path_length)); | |
| 915 if (relative_virtual_path.empty()) { | |
| 916 LOG(WARNING) << "Failed to convert path to relative: " << | |
| 917 src_full_path.value(); | |
| 918 return false; | |
| 919 } | |
| 920 FileId file_id; | |
| 921 if (db->GetFileWithPath(relative_virtual_path, &file_id)) { | |
| 922 NOTREACHED(); // File already exists. | |
| 923 return false; | |
| 924 } | |
| 925 if (!db->GetFileWithPath(relative_virtual_path.DirName(), &file_id)) { | |
| 926 NOTREACHED(); // Parent doesn't exist. | |
| 927 return false; | |
| 928 } | |
| 929 | |
| 930 FileInfo file_info; | |
| 931 file_info.name = src_full_path.BaseName().value(); | |
| 932 if (file_util::FileEnumerator::IsDirectory(info)) { | |
| 933 #if defined(OS_WIN) | |
| 934 file_info.modification_time = | |
| 935 base::Time::FromFileTime(info.ftLastWriteTime); | |
| 936 #elif defined(OS_POSIX) | |
| 937 file_info.modification_time = base::Time::FromTimeT(info.stat.st_mtime); | |
| 938 #endif | |
| 939 } else { | |
| 940 file_info.data_path = | |
| 941 FilePath(kLegacyDataDirectory).Append(relative_virtual_path); | |
| 942 } | |
| 943 file_info.parent_id = file_id; | |
| 944 if (!db->AddFileInfo(file_info, &file_id)) { | |
| 945 NOTREACHED(); | |
| 946 return false; | |
| 947 } | |
| 948 } | |
| 949 // TODO(ericu): Should we adjust the mtime of the root directory to match as | |
| 950 // well? | |
| 951 FilePath legacy_dest_dir = dest_root.Append(kLegacyDataDirectory); | |
| 952 | |
| 953 if (!file_util::Move(src_root, legacy_dest_dir)) { | |
| 954 LOG(WARNING) << | |
| 955 "The final step of a migration failed; I'll try to clean up."; | |
| 956 db = NULL; | |
| 957 DestroyDirectoryDatabase(origin_url, type); | |
| 958 return false; | |
| 959 } | |
| 960 return true; | |
| 961 } | |
| 962 | |
| 963 // static | |
| 964 FilePath::StringType ObfuscatedFileSystemFileUtil::GetDirectoryNameForType( | |
| 965 FileSystemType type) { | |
| 966 switch (type) { | |
| 967 case kFileSystemTypeTemporary: | |
| 968 return kTemporaryDirectoryName; | |
| 969 case kFileSystemTypePersistent: | |
| 970 return kPersistentDirectoryName; | |
| 971 case kFileSystemTypeUnknown: | |
| 972 default: | |
| 973 return FilePath::StringType(); | |
| 974 } | |
| 975 } | |
| 976 | |
| 977 FilePath ObfuscatedFileSystemFileUtil::DataPathToLocalPath( | |
| 978 const GURL& origin, FileSystemType type, const FilePath& data_path) { | |
| 979 FilePath root = GetDirectoryForOriginAndType(origin, type, false); | |
| 980 if (root.empty()) | |
| 981 return root; | |
| 982 return root.Append(data_path); | |
| 983 } | |
| 984 | |
| 985 FilePath ObfuscatedFileSystemFileUtil::LocalPathToDataPath( | |
| 986 const GURL& origin, FileSystemType type, const FilePath& local_path) { | |
| 987 FilePath root = GetDirectoryForOriginAndType(origin, type, false); | |
| 988 if (root.empty()) | |
| 989 return root; | |
| 990 // This removes the root, including the trailing slash, leaving a relative | |
| 991 // path. | |
| 992 return FilePath(local_path.value().substr(root.value().length() + 1)); | |
| 993 } | |
| 994 | |
| 995 // TODO: How to do the whole validation-without-creation thing? We may not have | |
| 996 // quota even to create the database. Ah, in that case don't even get here? | |
| 997 // Still doesn't answer the quota issue, though. | |
| 998 FileSystemDirectoryDatabase* ObfuscatedFileSystemFileUtil::GetDirectoryDatabase( | |
| 999 const GURL& origin, FileSystemType type, bool create) { | |
| 1000 std::string type_string = | |
| 1001 FileSystemPathManager::GetFileSystemTypeString(type); | |
| 1002 if (type_string.empty()) { | |
| 1003 LOG(WARNING) << "Unknown filesystem type requested:" << type; | |
| 1004 return NULL; | |
| 1005 } | |
| 1006 std::string key = GetOriginIdentifierFromURL(origin) + type_string; | |
| 1007 DirectoryMap::iterator iter = directories_.find(key); | |
| 1008 if (iter != directories_.end()) { | |
| 1009 MarkUsed(); | |
| 1010 return iter->second; | |
| 1011 } | |
| 1012 | |
| 1013 FilePath path = GetDirectoryForOriginAndType(origin, type, create); | |
| 1014 if (path.empty()) | |
| 1015 return NULL; | |
| 1016 if (!file_util::DirectoryExists(path)) { | |
| 1017 if (!file_util::CreateDirectory(path)) { | |
| 1018 LOG(WARNING) << "Failed to origin+type directory: " << path.value(); | |
| 1019 return NULL; | |
| 1020 } | |
| 1021 } | |
| 1022 MarkUsed(); | |
| 1023 path = path.AppendASCII(kDirectoryDatabaseName); | |
| 1024 FileSystemDirectoryDatabase* database = new FileSystemDirectoryDatabase(path); | |
| 1025 directories_[key] = database; | |
| 1026 return database; | |
| 1027 } | |
| 1028 | |
| 1029 FilePath ObfuscatedFileSystemFileUtil::GetDirectoryForOrigin( | |
| 1030 const GURL& origin, bool create) { | |
| 1031 if (!InitOriginDatabase(create)) | |
| 1032 return FilePath(); | |
| 1033 FilePath directory_name; | |
| 1034 std::string id = GetOriginIdentifierFromURL(origin); | |
| 1035 if (!create && !origin_database_->HasOriginPath(id)) | |
| 1036 return FilePath(); | |
| 1037 if (!origin_database_->GetPathForOrigin(id, &directory_name)) | |
| 1038 return FilePath(); | |
| 1039 FilePath path = file_system_directory_.Append(directory_name); | |
| 1040 if (!file_util::DirectoryExists(path) && | |
| 1041 (!create || !file_util::CreateDirectory(path))) | |
| 1042 return FilePath(); | |
| 1043 return path; | |
| 1044 } | |
| 1045 | |
| 1046 void ObfuscatedFileSystemFileUtil::MarkUsed() { | |
| 1047 if (timer_.IsRunning()) | |
| 1048 timer_.Reset(); | |
| 1049 else | |
| 1050 timer_.Start(base::TimeDelta::FromSeconds(kFlushDelaySeconds), this, | |
| 1051 &ObfuscatedFileSystemFileUtil::DropDatabases); | |
| 1052 } | |
| 1053 | |
| 1054 void ObfuscatedFileSystemFileUtil::DropDatabases() { | |
| 1055 origin_database_.reset(); | |
| 1056 STLDeleteContainerPairSecondPointers( | |
| 1057 directories_.begin(), directories_.end()); | |
| 1058 directories_.clear(); | |
| 1059 } | |
| 1060 | |
| 1061 bool ObfuscatedFileSystemFileUtil::DestroyDirectoryDatabase( | |
| 1062 const GURL& origin, FileSystemType type) { | |
| 1063 std::string type_string = | |
| 1064 FileSystemPathManager::GetFileSystemTypeString(type); | |
| 1065 if (type_string.empty()) { | |
| 1066 LOG(WARNING) << "Unknown filesystem type requested:" << type; | |
| 1067 return true; | |
| 1068 } | |
| 1069 std::string key = GetOriginIdentifierFromURL(origin) + type_string; | |
| 1070 DirectoryMap::iterator iter = directories_.find(key); | |
| 1071 if (iter != directories_.end()) { | |
| 1072 FileSystemDirectoryDatabase* database = iter->second; | |
| 1073 directories_.erase(iter); | |
| 1074 delete database; | |
| 1075 } | |
| 1076 | |
| 1077 FilePath path = GetDirectoryForOriginAndType(origin, type, false); | |
| 1078 if (path.empty()) | |
| 1079 return true; | |
| 1080 if (!file_util::DirectoryExists(path)) | |
| 1081 return true; | |
| 1082 path = path.AppendASCII(kDirectoryDatabaseName); | |
| 1083 return FileSystemDirectoryDatabase::DestroyDatabase(path); | |
| 1084 } | |
| 1085 | |
| 1086 bool ObfuscatedFileSystemFileUtil::InitOriginDatabase(bool create) { | |
| 1087 if (!origin_database_.get()) { | |
| 1088 if (!create && !file_util::DirectoryExists(file_system_directory_)) | |
| 1089 return false; | |
| 1090 if (!file_util::CreateDirectory(file_system_directory_)) { | |
| 1091 LOG(WARNING) << "Failed to create FileSystem directory: " << | |
| 1092 file_system_directory_.value(); | |
| 1093 return false; | |
| 1094 } | |
| 1095 origin_database_.reset( | |
| 1096 new FileSystemOriginDatabase( | |
| 1097 file_system_directory_.AppendASCII(kOriginDatabaseName))); | |
| 1098 } | |
| 1099 return true; | |
| 1100 } | |
| 1101 | |
| 1102 } // namespace fileapi | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 7470037:
[Refactor] to rename and re-layer the file_util stack layers. (Closed)
Base URL: http://git.chromium.org/git/chromium.git@trunk