src/chrome/utility/chrome_content_utility_client.cc

   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
   3 // found in the LICENSE file.
   4
   5 #include "chrome/utility/chrome_content_utility_client.h"
   6
   7 #include "base/base64.h"
   8 #include "base/bind.h"
   9 #include "base/command_line.h"
  10 #include "base/file_util.h"
  11 #include "base/files/file_path.h"
  12 #include "base/json/json_reader.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/path_service.h"
  15 #include "base/scoped_native_library.h"
  16 #include "base/time/time.h"
  17 #include "chrome/common/chrome_paths.h"
  18 #include "chrome/common/chrome_utility_messages.h"
  19 #include "chrome/common/extensions/chrome_extensions_client.h"
  20 #include "chrome/common/extensions/extension_l10n_util.h"
  21 #include "chrome/common/extensions/update_manifest.h"
  22 #include "chrome/common/safe_browsing/zip_analyzer.h"
  23 #include "chrome/utility/chrome_content_utility_ipc_whitelist.h"
  24 #include "chrome/utility/cloud_print/bitmap_image.h"
  25 #include "chrome/utility/cloud_print/pwg_encoder.h"
  26 #include "chrome/utility/extensions/unpacker.h"
  27 #include "chrome/utility/profile_import_handler.h"
  28 #include "chrome/utility/web_resource_unpacker.h"
  29 #include "content/public/child/image_decoder_utils.h"
  30 #include "content/public/common/content_paths.h"
  31 #include "content/public/common/content_switches.h"
  32 #include "content/public/utility/utility_thread.h"
  33 #include "extensions/common/extension.h"
  34 #include "extensions/common/manifest.h"
  35 #include "media/base/media.h"
  36 #include "media/base/media_file_checker.h"
  37 #include "printing/page_range.h"
  38 #include "printing/pdf_render_settings.h"
  39 #include "third_party/skia/include/core/SkBitmap.h"
  40 #include "third_party/zlib/google/zip.h"
  41 #include "ui/base/ui_base_switches.h"
  42 #include "ui/gfx/codec/jpeg_codec.h"
  43 #include "ui/gfx/rect.h"
  44 #include "ui/gfx/size.h"
  45
  46 #if defined(OS_WIN)
  47 #include "base/win/iat_patch_function.h"
  48 #include "base/win/scoped_handle.h"
  49 #include "chrome/utility/media_galleries/itunes_pref_parser_win.h"
  50 #include "printing/emf_win.h"
  51 #include "ui/gfx/gdi_util.h"
  52 #endif  // defined(OS_WIN)
  53
  54 #if defined(OS_MACOSX)
  55 #include "chrome/utility/media_galleries/iphoto_library_parser.h"
  56 #endif  // defined(OS_MACOSX)
  57
  58 #if defined(OS_WIN) || defined(OS_MACOSX)
  59 #include "chrome/utility/media_galleries/iapps_xml_utils.h"
  60 #include "chrome/utility/media_galleries/itunes_library_parser.h"
  61 #include "chrome/utility/media_galleries/picasa_album_table_reader.h"
  62 #include "chrome/utility/media_galleries/picasa_albums_indexer.h"
  63 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
  64
  65 #if !defined(OS_ANDROID) && !defined(OS_IOS)
  66 #include "chrome/utility/media_galleries/ipc_data_source.h"
  67 #include "chrome/utility/media_galleries/media_metadata_parser.h"
  68 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
  69
  70 #if defined(ENABLE_FULL_PRINTING)
  71 #include "chrome/common/crash_keys.h"
  72 #include "printing/backend/print_backend.h"
  73 #endif
  74
  75 #if defined(ENABLE_MDNS)
  76 #include "chrome/utility/local_discovery/service_discovery_message_handler.h"
  77 #endif  // ENABLE_MDNS
  78
  79 namespace chrome {
  80
  81 namespace {
  82
  83 bool Send(IPC::Message* message) {
  84   return content::UtilityThread::Get()->Send(message);
  85 }
  86
  87 void ReleaseProcessIfNeeded() {
  88   content::UtilityThread::Get()->ReleaseProcessIfNeeded();
  89 }
  90
  91 class PdfFunctionsBase {
  92  public:
  93   PdfFunctionsBase() : render_pdf_to_bitmap_func_(NULL),
  94                        get_pdf_doc_info_func_(NULL) {}
  95
  96   bool Init() {
  97     base::FilePath pdf_module_path;
  98     if (!PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf_module_path) ||
  99         !base::PathExists(pdf_module_path)) {
 100       return false;
 101     }
 102
 103     pdf_lib_.Reset(base::LoadNativeLibrary(pdf_module_path, NULL));
 104     if (!pdf_lib_.is_valid()) {
 105       LOG(WARNING) << "Couldn't load PDF plugin";
 106       return false;
 107     }
 108
 109     render_pdf_to_bitmap_func_ =
 110         reinterpret_cast<RenderPDFPageToBitmapProc>(
 111             pdf_lib_.GetFunctionPointer("RenderPDFPageToBitmap"));
 112     LOG_IF(WARNING, !render_pdf_to_bitmap_func_) <<
 113         "Missing RenderPDFPageToBitmap";
 114
 115     get_pdf_doc_info_func_ =
 116         reinterpret_cast<GetPDFDocInfoProc>(
 117             pdf_lib_.GetFunctionPointer("GetPDFDocInfo"));
 118     LOG_IF(WARNING, !get_pdf_doc_info_func_) << "Missing GetPDFDocInfo";
 119
 120     if (!render_pdf_to_bitmap_func_ || !get_pdf_doc_info_func_ ||
 121         !PlatformInit(pdf_module_path, pdf_lib_)) {
 122       Reset();
 123     }
 124
 125     return IsValid();
 126   }
 127
 128   bool IsValid() const {
 129     return pdf_lib_.is_valid();
 130   }
 131
 132   void Reset() {
 133     pdf_lib_.Reset(NULL);
 134   }
 135
 136   bool RenderPDFPageToBitmap(const void* pdf_buffer,
 137                              int pdf_buffer_size,
 138                              int page_number,
 139                              void* bitmap_buffer,
 140                              int bitmap_width,
 141                              int bitmap_height,
 142                              int dpi_x,
 143                              int dpi_y,
 144                              bool autorotate) {
 145     if (!render_pdf_to_bitmap_func_)
 146       return false;
 147     return render_pdf_to_bitmap_func_(pdf_buffer, pdf_buffer_size, page_number,
 148                                       bitmap_buffer, bitmap_width,
 149                                       bitmap_height, dpi_x, dpi_y, autorotate);
 150   }
 151
 152   bool GetPDFDocInfo(const void* pdf_buffer,
 153                      int buffer_size,
 154                      int* page_count,
 155                      double* max_page_width) {
 156     if (!get_pdf_doc_info_func_)
 157       return false;
 158     return get_pdf_doc_info_func_(pdf_buffer, buffer_size, page_count,
 159                                   max_page_width);
 160   }
 161
 162  protected:
 163   virtual bool PlatformInit(
 164       const base::FilePath& pdf_module_path,
 165       const base::ScopedNativeLibrary& pdf_lib) {
 166     return true;
 167   };
 168
 169  private:
 170   // Exported by PDF plugin.
 171   typedef bool (*RenderPDFPageToBitmapProc)(const void* pdf_buffer,
 172                                             int pdf_buffer_size,
 173                                             int page_number,
 174                                             void* bitmap_buffer,
 175                                             int bitmap_width,
 176                                             int bitmap_height,
 177                                             int dpi_x,
 178                                             int dpi_y,
 179                                             bool autorotate);
 180   typedef bool (*GetPDFDocInfoProc)(const void* pdf_buffer,
 181                                     int buffer_size, int* page_count,
 182                                     double* max_page_width);
 183
 184   RenderPDFPageToBitmapProc render_pdf_to_bitmap_func_;
 185   GetPDFDocInfoProc get_pdf_doc_info_func_;
 186
 187   base::ScopedNativeLibrary pdf_lib_;
 188   DISALLOW_COPY_AND_ASSIGN(PdfFunctionsBase);
 189 };
 190
 191 #if defined(OS_WIN)
 192 // The 2 below IAT patch functions are almost identical to the code in
 193 // render_process_impl.cc. This is needed to work around specific Windows APIs
 194 // used by the Chrome PDF plugin that will fail in the sandbox.
 195 static base::win::IATPatchFunction g_iat_patch_createdca;
 196 HDC WINAPI UtilityProcess_CreateDCAPatch(LPCSTR driver_name,
 197                                          LPCSTR device_name,
 198                                          LPCSTR output,
 199                                          const DEVMODEA* init_data) {
 200   if (driver_name && (std::string("DISPLAY") == driver_name)) {
 201     // CreateDC fails behind the sandbox, but not CreateCompatibleDC.
 202     return CreateCompatibleDC(NULL);
 203   }
 204
 205   NOTREACHED();
 206   return CreateDCA(driver_name, device_name, output, init_data);
 207 }
 208
 209 static base::win::IATPatchFunction g_iat_patch_get_font_data;
 210 DWORD WINAPI UtilityProcess_GetFontDataPatch(
 211     HDC hdc, DWORD table, DWORD offset, LPVOID buffer, DWORD length) {
 212   int rv = GetFontData(hdc, table, offset, buffer, length);
 213   if (rv == GDI_ERROR && hdc) {
 214     HFONT font = static_cast<HFONT>(GetCurrentObject(hdc, OBJ_FONT));
 215
 216     LOGFONT logfont;
 217     if (GetObject(font, sizeof(LOGFONT), &logfont)) {
 218       content::UtilityThread::Get()->PreCacheFont(logfont);
 219       rv = GetFontData(hdc, table, offset, buffer, length);
 220       content::UtilityThread::Get()->ReleaseCachedFonts();
 221     }
 222   }
 223   return rv;
 224 }
 225
 226 class PdfFunctionsWin : public PdfFunctionsBase {
 227  public:
 228   PdfFunctionsWin() : render_pdf_to_dc_func_(NULL) {
 229   }
 230
 231   bool PlatformInit(
 232       const base::FilePath& pdf_module_path,
 233       const base::ScopedNativeLibrary& pdf_lib) OVERRIDE {
 234     // Patch the IAT for handling specific APIs known to fail in the sandbox.
 235     if (!g_iat_patch_createdca.is_patched()) {
 236       g_iat_patch_createdca.Patch(pdf_module_path.value().c_str(),
 237                                   "gdi32.dll", "CreateDCA",
 238                                   UtilityProcess_CreateDCAPatch);
 239     }
 240
 241     if (!g_iat_patch_get_font_data.is_patched()) {
 242       g_iat_patch_get_font_data.Patch(pdf_module_path.value().c_str(),
 243                                       "gdi32.dll", "GetFontData",
 244                                       UtilityProcess_GetFontDataPatch);
 245     }
 246     render_pdf_to_dc_func_ =
 247       reinterpret_cast<RenderPDFPageToDCProc>(
 248           pdf_lib.GetFunctionPointer("RenderPDFPageToDC"));
 249     LOG_IF(WARNING, !render_pdf_to_dc_func_) << "Missing RenderPDFPageToDC";
 250
 251     return render_pdf_to_dc_func_ != NULL;
 252   }
 253
 254   bool RenderPDFPageToDC(const void* pdf_buffer,
 255                          int buffer_size,
 256                          int page_number,
 257                          HDC dc,
 258                          int dpi_x,
 259                          int dpi_y,
 260                          int bounds_origin_x,
 261                          int bounds_origin_y,
 262                          int bounds_width,
 263                          int bounds_height,
 264                          bool fit_to_bounds,
 265                          bool stretch_to_bounds,
 266                          bool keep_aspect_ratio,
 267                          bool center_in_bounds,
 268                          bool autorotate) {
 269     if (!render_pdf_to_dc_func_)
 270       return false;
 271     return render_pdf_to_dc_func_(pdf_buffer, buffer_size, page_number,
 272                                   dc, dpi_x, dpi_y, bounds_origin_x,
 273                                   bounds_origin_y, bounds_width, bounds_height,
 274                                   fit_to_bounds, stretch_to_bounds,
 275                                   keep_aspect_ratio, center_in_bounds,
 276                                   autorotate);
 277   }
 278
 279  private:
 280   // Exported by PDF plugin.
 281   typedef bool (*RenderPDFPageToDCProc)(
 282       const void* pdf_buffer, int buffer_size, int page_number, HDC dc,
 283       int dpi_x, int dpi_y, int bounds_origin_x, int bounds_origin_y,
 284       int bounds_width, int bounds_height, bool fit_to_bounds,
 285       bool stretch_to_bounds, bool keep_aspect_ratio, bool center_in_bounds,
 286       bool autorotate);
 287   RenderPDFPageToDCProc render_pdf_to_dc_func_;
 288
 289   DISALLOW_COPY_AND_ASSIGN(PdfFunctionsWin);
 290 };
 291
 292 typedef PdfFunctionsWin PdfFunctions;
 293 #else  // OS_WIN
 294 typedef PdfFunctionsBase PdfFunctions;
 295 #endif  // OS_WIN
 296
 297 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 298 void SendMediaMetadataToHost(
 299     scoped_ptr<extensions::api::media_galleries::MediaMetadata> metadata) {
 300   Send(new ChromeUtilityHostMsg_ParseMediaMetadata_Finished(
 301       true, *(metadata->ToValue().get())));
 302 }
 303 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 304
 305 static base::LazyInstance<PdfFunctions> g_pdf_lib = LAZY_INSTANCE_INITIALIZER;
 306
 307 }  // namespace
 308
 309 ChromeContentUtilityClient::ChromeContentUtilityClient()
 310     : filter_messages_(false) {
 311 #if !defined(OS_ANDROID)
 312   handlers_.push_back(new ProfileImportHandler());
 313 #endif  // OS_ANDROID
 314
 315 #if defined(ENABLE_MDNS)
 316   if (CommandLine::ForCurrentProcess()->HasSwitch(
 317           switches::kUtilityProcessEnableMDns)) {
 318     handlers_.push_back(new local_discovery::ServiceDiscoveryMessageHandler());
 319   }
 320 #endif  // ENABLE_MDNS
 321 }
 322
 323 ChromeContentUtilityClient::~ChromeContentUtilityClient() {
 324 }
 325
 326 void ChromeContentUtilityClient::UtilityThreadStarted() {
 327   CommandLine* command_line = CommandLine::ForCurrentProcess();
 328   std::string lang = command_line->GetSwitchValueASCII(switches::kLang);
 329   if (!lang.empty())
 330     extension_l10n_util::SetProcessLocale(lang);
 331
 332   if (command_line->HasSwitch(switches::kUtilityProcessRunningElevated)) {
 333     message_id_whitelist_.insert(kMessageWhitelist,
 334                                  kMessageWhitelist + kMessageWhitelistSize);
 335     filter_messages_ = true;
 336   }
 337 }
 338
 339 bool ChromeContentUtilityClient::OnMessageReceived(
 340     const IPC::Message& message) {
 341   if (filter_messages_ &&
 342       (message_id_whitelist_.find(message.type()) ==
 343        message_id_whitelist_.end())) {
 344     return false;
 345   }
 346
 347   bool handled = true;
 348   IPC_BEGIN_MESSAGE_MAP(ChromeContentUtilityClient, message)
 349     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_UnpackExtension, OnUnpackExtension)
 350     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_UnpackWebResource,
 351                         OnUnpackWebResource)
 352     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseUpdateManifest,
 353                         OnParseUpdateManifest)
 354     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_DecodeImage, OnDecodeImage)
 355     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_DecodeImageBase64, OnDecodeImageBase64)
 356     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RenderPDFPagesToMetafile,
 357                         OnRenderPDFPagesToMetafile)
 358     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RenderPDFPagesToPWGRaster,
 359                         OnRenderPDFPagesToPWGRaster)
 360     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RobustJPEGDecodeImage,
 361                         OnRobustJPEGDecodeImage)
 362     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseJSON, OnParseJSON)
 363     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_GetPrinterCapsAndDefaults,
 364                         OnGetPrinterCapsAndDefaults)
 365     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_GetPrinterSemanticCapsAndDefaults,
 366                         OnGetPrinterSemanticCapsAndDefaults)
 367     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_StartupPing, OnStartupPing)
 368     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_AnalyzeZipFileForDownloadProtection,
 369                         OnAnalyzeZipFileForDownloadProtection)
 370
 371 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 372     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_CheckMediaFile, OnCheckMediaFile)
 373     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseMediaMetadata,
 374                         OnParseMediaMetadata)
 375 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 376
 377 #if defined(OS_CHROMEOS)
 378     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_CreateZipFile, OnCreateZipFile)
 379 #endif  // defined(OS_CHROMEOS)
 380
 381 #if defined(OS_WIN)
 382     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseITunesPrefXml,
 383                         OnParseITunesPrefXml)
 384 #endif  // defined(OS_WIN)
 385
 386 #if defined(OS_MACOSX)
 387     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseIPhotoLibraryXmlFile,
 388                         OnParseIPhotoLibraryXmlFile)
 389 #endif  // defined(OS_MACOSX)
 390
 391 #if defined(OS_WIN) || defined(OS_MACOSX)
 392     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseITunesLibraryXmlFile,
 393                         OnParseITunesLibraryXmlFile)
 394     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParsePicasaPMPDatabase,
 395                         OnParsePicasaPMPDatabase)
 396     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_IndexPicasaAlbumsContents,
 397                         OnIndexPicasaAlbumsContents)
 398 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 399
 400     IPC_MESSAGE_UNHANDLED(handled = false)
 401   IPC_END_MESSAGE_MAP()
 402
 403   for (Handlers::iterator it = handlers_.begin();
 404        !handled && it != handlers_.end(); ++it) {
 405     handled = (*it)->OnMessageReceived(message);
 406   }
 407
 408   return handled;
 409 }
 410
 411 // static
 412 void ChromeContentUtilityClient::PreSandboxStartup() {
 413 #if defined(ENABLE_MDNS)
 414   local_discovery::ServiceDiscoveryMessageHandler::PreSandboxStartup();
 415 #endif  // ENABLE_MDNS
 416
 417   g_pdf_lib.Get().Init();
 418
 419   // Load media libraries for media file validation.
 420   base::FilePath media_path;
 421   PathService::Get(content::DIR_MEDIA_LIBS, &media_path);
 422   if (!media_path.empty())
 423     media::InitializeMediaLibrary(media_path);
 424 }
 425
 426 void ChromeContentUtilityClient::OnUnpackExtension(
 427     const base::FilePath& extension_path,
 428     const std::string& extension_id,
 429     int location,
 430     int creation_flags) {
 431   CHECK_GT(location, extensions::Manifest::INVALID_LOCATION);
 432   CHECK_LT(location, extensions::Manifest::NUM_LOCATIONS);
 433   extensions::ExtensionsClient::Set(
 434       extensions::ChromeExtensionsClient::GetInstance());
 435   extensions::Unpacker unpacker(
 436       extension_path,
 437       extension_id,
 438       static_cast<extensions::Manifest::Location>(location),
 439       creation_flags);
 440   if (unpacker.Run() && unpacker.DumpImagesToFile() &&
 441       unpacker.DumpMessageCatalogsToFile()) {
 442     Send(new ChromeUtilityHostMsg_UnpackExtension_Succeeded(
 443         *unpacker.parsed_manifest()));
 444   } else {
 445     Send(new ChromeUtilityHostMsg_UnpackExtension_Failed(
 446         unpacker.error_message()));
 447   }
 448
 449   ReleaseProcessIfNeeded();
 450 }
 451
 452 void ChromeContentUtilityClient::OnUnpackWebResource(
 453     const std::string& resource_data) {
 454   // Parse json data.
 455   // TODO(mrc): Add the possibility of a template that controls parsing, and
 456   // the ability to download and verify images.
 457   WebResourceUnpacker unpacker(resource_data);
 458   if (unpacker.Run()) {
 459     Send(new ChromeUtilityHostMsg_UnpackWebResource_Succeeded(
 460         *unpacker.parsed_json()));
 461   } else {
 462     Send(new ChromeUtilityHostMsg_UnpackWebResource_Failed(
 463         unpacker.error_message()));
 464   }
 465
 466   ReleaseProcessIfNeeded();
 467 }
 468
 469 void ChromeContentUtilityClient::OnParseUpdateManifest(const std::string& xml) {
 470   UpdateManifest manifest;
 471   if (!manifest.Parse(xml)) {
 472     Send(new ChromeUtilityHostMsg_ParseUpdateManifest_Failed(
 473         manifest.errors()));
 474   } else {
 475     Send(new ChromeUtilityHostMsg_ParseUpdateManifest_Succeeded(
 476         manifest.results()));
 477   }
 478   ReleaseProcessIfNeeded();
 479 }
 480
 481 void ChromeContentUtilityClient::OnDecodeImage(
 482     const std::vector<unsigned char>& encoded_data) {
 483   const SkBitmap& decoded_image = content::DecodeImage(&encoded_data[0],
 484                                                        gfx::Size(),
 485                                                        encoded_data.size());
 486   if (decoded_image.empty()) {
 487     Send(new ChromeUtilityHostMsg_DecodeImage_Failed());
 488   } else {
 489     Send(new ChromeUtilityHostMsg_DecodeImage_Succeeded(decoded_image));
 490   }
 491   ReleaseProcessIfNeeded();
 492 }
 493
 494 void ChromeContentUtilityClient::OnDecodeImageBase64(
 495     const std::string& encoded_string) {
 496   std::string decoded_string;
 497
 498   if (!base::Base64Decode(encoded_string, &decoded_string)) {
 499     Send(new ChromeUtilityHostMsg_DecodeImage_Failed());
 500     return;
 501   }
 502
 503   std::vector<unsigned char> decoded_vector(decoded_string.size());
 504   for (size_t i = 0; i < decoded_string.size(); ++i) {
 505     decoded_vector[i] = static_cast<unsigned char>(decoded_string[i]);
 506   }
 507
 508   OnDecodeImage(decoded_vector);
 509 }
 510
 511 #if defined(OS_CHROMEOS)
 512 void ChromeContentUtilityClient::OnCreateZipFile(
 513     const base::FilePath& src_dir,
 514     const std::vector<base::FilePath>& src_relative_paths,
 515     const base::FileDescriptor& dest_fd) {
 516   bool succeeded = true;
 517
 518   // Check sanity of source relative paths. Reject if path is absolute or
 519   // contains any attempt to reference a parent directory ("../" tricks).
 520   for (std::vector<base::FilePath>::const_iterator iter =
 521            src_relative_paths.begin(); iter != src_relative_paths.end();
 522        ++iter) {
 523     if (iter->IsAbsolute() || iter->ReferencesParent()) {
 524       succeeded = false;
 525       break;
 526     }
 527   }
 528
 529   if (succeeded)
 530     succeeded = zip::ZipFiles(src_dir, src_relative_paths, dest_fd.fd);
 531
 532   if (succeeded)
 533     Send(new ChromeUtilityHostMsg_CreateZipFile_Succeeded());
 534   else
 535     Send(new ChromeUtilityHostMsg_CreateZipFile_Failed());
 536   ReleaseProcessIfNeeded();
 537 }
 538 #endif  // defined(OS_CHROMEOS)
 539
 540 void ChromeContentUtilityClient::OnRenderPDFPagesToMetafile(
 541     base::PlatformFile pdf_file,
 542     const base::FilePath& metafile_path,
 543     const printing::PdfRenderSettings& settings,
 544     const std::vector<printing::PageRange>& page_ranges) {
 545   bool succeeded = false;
 546 #if defined(OS_WIN)
 547   int highest_rendered_page_number = 0;
 548   double scale_factor = 1.0;
 549   succeeded = RenderPDFToWinMetafile(pdf_file,
 550                                      metafile_path,
 551                                      settings,
 552                                      page_ranges,
 553                                      &highest_rendered_page_number,
 554                                      &scale_factor);
 555   if (succeeded) {
 556     Send(new ChromeUtilityHostMsg_RenderPDFPagesToMetafile_Succeeded(
 557         highest_rendered_page_number, scale_factor));
 558   }
 559 #endif  // defined(OS_WIN)
 560   if (!succeeded) {
 561     Send(new ChromeUtilityHostMsg_RenderPDFPagesToMetafile_Failed());
 562   }
 563   ReleaseProcessIfNeeded();
 564 }
 565
 566 void ChromeContentUtilityClient::OnRenderPDFPagesToPWGRaster(
 567     IPC::PlatformFileForTransit pdf_transit,
 568     const printing::PdfRenderSettings& settings,
 569     IPC::PlatformFileForTransit bitmap_transit) {
 570   base::PlatformFile pdf =
 571       IPC::PlatformFileForTransitToPlatformFile(pdf_transit);
 572   base::PlatformFile bitmap =
 573       IPC::PlatformFileForTransitToPlatformFile(bitmap_transit);
 574   if (RenderPDFPagesToPWGRaster(pdf, settings, bitmap)) {
 575     Send(new ChromeUtilityHostMsg_RenderPDFPagesToPWGRaster_Succeeded());
 576   } else {
 577     Send(new ChromeUtilityHostMsg_RenderPDFPagesToPWGRaster_Failed());
 578   }
 579   ReleaseProcessIfNeeded();
 580 }
 581
 582 #if defined(OS_WIN)
 583 bool ChromeContentUtilityClient::RenderPDFToWinMetafile(
 584     base::PlatformFile pdf_file,
 585     const base::FilePath& metafile_path,
 586     const printing::PdfRenderSettings& settings,
 587     const std::vector<printing::PageRange>& page_ranges,
 588     int* highest_rendered_page_number,
 589     double* scale_factor) {
 590   *highest_rendered_page_number = -1;
 591   *scale_factor = 1.0;
 592   base::win::ScopedHandle file(pdf_file);
 593
 594   if (!g_pdf_lib.Get().IsValid())
 595     return false;
 596
 597   // TODO(sanjeevr): Add a method to the PDF DLL that takes in a file handle
 598   // and a page range array. That way we don't need to read the entire PDF into
 599   // memory.
 600   DWORD length = ::GetFileSize(file, NULL);
 601   if (length == INVALID_FILE_SIZE)
 602     return false;
 603
 604   std::vector<uint8> buffer;
 605   buffer.resize(length);
 606   DWORD bytes_read = 0;
 607   if (!ReadFile(pdf_file, &buffer.front(), length, &bytes_read, NULL) ||
 608       (bytes_read != length)) {
 609     return false;
 610   }
 611
 612   int total_page_count = 0;
 613   if (!g_pdf_lib.Get().GetPDFDocInfo(&buffer.front(), buffer.size(),
 614                                      &total_page_count, NULL)) {
 615     return false;
 616   }
 617
 618   printing::Emf metafile;
 619   metafile.InitToFile(metafile_path);
 620   // We need to scale down DC to fit an entire page into DC available area.
 621   // Current metafile is based on screen DC and have current screen size.
 622   // Writing outside of those boundaries will result in the cut-off output.
 623   // On metafiles (this is the case here), scaling down will still record
 624   // original coordinates and we'll be able to print in full resolution.
 625   // Before playback we'll need to counter the scaling up that will happen
 626   // in the service (print_system_win.cc).
 627   *scale_factor = gfx::CalculatePageScale(metafile.context(),
 628                                           settings.area().right(),
 629                                           settings.area().bottom());
 630   gfx::ScaleDC(metafile.context(), *scale_factor);
 631
 632   bool ret = false;
 633   std::vector<printing::PageRange>::const_iterator iter;
 634   for (iter = page_ranges.begin(); iter != page_ranges.end(); ++iter) {
 635     for (int page_number = iter->from; page_number <= iter->to; ++page_number) {
 636       if (page_number >= total_page_count)
 637         break;
 638       // The underlying metafile is of type Emf and ignores the arguments passed
 639       // to StartPage.
 640       metafile.StartPage(gfx::Size(), gfx::Rect(), 1);
 641       if (g_pdf_lib.Get().RenderPDFPageToDC(
 642               &buffer.front(), buffer.size(), page_number, metafile.context(),
 643               settings.dpi(), settings.dpi(), settings.area().x(),
 644               settings.area().y(), settings.area().width(),
 645               settings.area().height(), true, false, true, true,
 646               settings.autorotate())) {
 647         if (*highest_rendered_page_number < page_number)
 648           *highest_rendered_page_number = page_number;
 649         ret = true;
 650       }
 651       metafile.FinishPage();
 652     }
 653   }
 654   metafile.FinishDocument();
 655   return ret;
 656 }
 657 #endif  // defined(OS_WIN)
 658
 659 bool ChromeContentUtilityClient::RenderPDFPagesToPWGRaster(
 660     base::PlatformFile pdf_file,
 661     const printing::PdfRenderSettings& settings,
 662     base::PlatformFile bitmap_file) {
 663   bool autoupdate = true;
 664   if (!g_pdf_lib.Get().IsValid())
 665     return false;
 666
 667   base::PlatformFileInfo info;
 668   if (!base::GetPlatformFileInfo(pdf_file, &info) || info.size <= 0)
 669     return false;
 670
 671   std::string data(info.size, 0);
 672   int data_size = base::ReadPlatformFile(pdf_file, 0, &data[0], data.size());
 673   if (data_size != static_cast<int>(data.size()))
 674     return false;
 675
 676   int total_page_count = 0;
 677   if (!g_pdf_lib.Get().GetPDFDocInfo(data.data(), data.size(),
 678                                      &total_page_count, NULL)) {
 679     return false;
 680   }
 681
 682   cloud_print::PwgEncoder encoder;
 683   std::string pwg_header;
 684   encoder.EncodeDocumentHeader(&pwg_header);
 685   int bytes_written = base::WritePlatformFileAtCurrentPos(bitmap_file,
 686                                                           pwg_header.data(),
 687                                                           pwg_header.size());
 688   if (bytes_written != static_cast<int>(pwg_header.size()))
 689     return false;
 690
 691   cloud_print::BitmapImage image(settings.area().size(),
 692                                  cloud_print::BitmapImage::BGRA);
 693   for (int i = 0; i < total_page_count; ++i) {
 694     if (!g_pdf_lib.Get().RenderPDFPageToBitmap(
 695              data.data(), data.size(), i, image.pixel_data(),
 696              image.size().width(), image.size().height(), settings.dpi(),
 697              settings.dpi(), autoupdate)) {
 698       return false;
 699     }
 700     std::string pwg_page;
 701     if (!encoder.EncodePage(image, settings.dpi(), total_page_count, &pwg_page))
 702       return false;
 703     bytes_written = base::WritePlatformFileAtCurrentPos(bitmap_file,
 704                                                         pwg_page.data(),
 705                                                         pwg_page.size());
 706     if (bytes_written != static_cast<int>(pwg_page.size()))
 707       return false;
 708   }
 709   return true;
 710 }
 711
 712 void ChromeContentUtilityClient::OnRobustJPEGDecodeImage(
 713     const std::vector<unsigned char>& encoded_data) {
 714   // Our robust jpeg decoding is using IJG libjpeg.
 715   if (gfx::JPEGCodec::JpegLibraryVariant() == gfx::JPEGCodec::IJG_LIBJPEG) {
 716     scoped_ptr<SkBitmap> decoded_image(gfx::JPEGCodec::Decode(
 717         &encoded_data[0], encoded_data.size()));
 718     if (!decoded_image.get() || decoded_image->empty()) {
 719       Send(new ChromeUtilityHostMsg_DecodeImage_Failed());
 720     } else {
 721       Send(new ChromeUtilityHostMsg_DecodeImage_Succeeded(*decoded_image));
 722     }
 723   } else {
 724     Send(new ChromeUtilityHostMsg_DecodeImage_Failed());
 725   }
 726   ReleaseProcessIfNeeded();
 727 }
 728
 729 void ChromeContentUtilityClient::OnParseJSON(const std::string& json) {
 730   int error_code;
 731   std::string error;
 732   base::Value* value = base::JSONReader::ReadAndReturnError(
 733       json, base::JSON_PARSE_RFC, &error_code, &error);
 734   if (value) {
 735     base::ListValue wrapper;
 736     wrapper.Append(value);
 737     Send(new ChromeUtilityHostMsg_ParseJSON_Succeeded(wrapper));
 738   } else {
 739     Send(new ChromeUtilityHostMsg_ParseJSON_Failed(error));
 740   }
 741   ReleaseProcessIfNeeded();
 742 }
 743
 744 void ChromeContentUtilityClient::OnGetPrinterCapsAndDefaults(
 745     const std::string& printer_name) {
 746 #if defined(ENABLE_FULL_PRINTING)
 747   scoped_refptr<printing::PrintBackend> print_backend =
 748       printing::PrintBackend::CreateInstance(NULL);
 749   printing::PrinterCapsAndDefaults printer_info;
 750
 751   crash_keys::ScopedPrinterInfo crash_key(
 752       print_backend->GetPrinterDriverInfo(printer_name));
 753
 754   if (print_backend->GetPrinterCapsAndDefaults(printer_name, &printer_info)) {
 755     Send(new ChromeUtilityHostMsg_GetPrinterCapsAndDefaults_Succeeded(
 756         printer_name, printer_info));
 757   } else  // NOLINT
 758 #endif
 759   {
 760     Send(new ChromeUtilityHostMsg_GetPrinterCapsAndDefaults_Failed(
 761         printer_name));
 762   }
 763   ReleaseProcessIfNeeded();
 764 }
 765
 766 void ChromeContentUtilityClient::OnGetPrinterSemanticCapsAndDefaults(
 767     const std::string& printer_name) {
 768 #if defined(ENABLE_FULL_PRINTING)
 769   scoped_refptr<printing::PrintBackend> print_backend =
 770       printing::PrintBackend::CreateInstance(NULL);
 771   printing::PrinterSemanticCapsAndDefaults printer_info;
 772
 773   crash_keys::ScopedPrinterInfo crash_key(
 774       print_backend->GetPrinterDriverInfo(printer_name));
 775
 776   if (print_backend->GetPrinterSemanticCapsAndDefaults(printer_name,
 777                                                        &printer_info)) {
 778     Send(new ChromeUtilityHostMsg_GetPrinterSemanticCapsAndDefaults_Succeeded(
 779         printer_name, printer_info));
 780   } else  // NOLINT
 781 #endif
 782   {
 783     Send(new ChromeUtilityHostMsg_GetPrinterSemanticCapsAndDefaults_Failed(
 784         printer_name));
 785   }
 786   ReleaseProcessIfNeeded();
 787 }
 788
 789 void ChromeContentUtilityClient::OnStartupPing() {
 790   Send(new ChromeUtilityHostMsg_ProcessStarted);
 791   // Don't release the process, we assume further messages are on the way.
 792 }
 793
 794 void ChromeContentUtilityClient::OnAnalyzeZipFileForDownloadProtection(
 795     const IPC::PlatformFileForTransit& zip_file) {
 796   safe_browsing::zip_analyzer::Results results;
 797   safe_browsing::zip_analyzer::AnalyzeZipFile(
 798       IPC::PlatformFileForTransitToPlatformFile(zip_file), &results);
 799   Send(new ChromeUtilityHostMsg_AnalyzeZipFileForDownloadProtection_Finished(
 800       results));
 801   ReleaseProcessIfNeeded();
 802 }
 803
 804 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 805 void ChromeContentUtilityClient::OnCheckMediaFile(
 806     int64 milliseconds_of_decoding,
 807     const IPC::PlatformFileForTransit& media_file) {
 808   media::MediaFileChecker checker(
 809       base::File(IPC::PlatformFileForTransitToPlatformFile(media_file)));
 810   const bool check_success = checker.Start(
 811       base::TimeDelta::FromMilliseconds(milliseconds_of_decoding));
 812   Send(new ChromeUtilityHostMsg_CheckMediaFile_Finished(check_success));
 813   ReleaseProcessIfNeeded();
 814 }
 815
 816 void ChromeContentUtilityClient::OnParseMediaMetadata(
 817     const std::string& mime_type,
 818     int64 total_size) {
 819   // Only one IPCDataSource may be created and added to the list of handlers.
 820   CHECK(!media_metadata_parser_);
 821   metadata::IPCDataSource* source = new metadata::IPCDataSource(total_size);
 822   handlers_.push_back(source);
 823
 824   media_metadata_parser_.reset(new metadata::MediaMetadataParser(source,
 825                                                                  mime_type));
 826   media_metadata_parser_->Start(base::Bind(&SendMediaMetadataToHost));
 827 }
 828 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 829
 830 #if defined(OS_WIN)
 831 void ChromeContentUtilityClient::OnParseITunesPrefXml(
 832     const std::string& itunes_xml_data) {
 833   base::FilePath library_path(
 834       itunes::FindLibraryLocationInPrefXml(itunes_xml_data));
 835   Send(new ChromeUtilityHostMsg_GotITunesDirectory(library_path));
 836   ReleaseProcessIfNeeded();
 837 }
 838 #endif  // defined(OS_WIN)
 839
 840 #if defined(OS_MACOSX)
 841 void ChromeContentUtilityClient::OnParseIPhotoLibraryXmlFile(
 842     const IPC::PlatformFileForTransit& iphoto_library_file) {
 843   iphoto::IPhotoLibraryParser parser;
 844   base::PlatformFile file =
 845       IPC::PlatformFileForTransitToPlatformFile(iphoto_library_file);
 846   bool result = parser.Parse(iapps::ReadPlatformFileAsString(file));
 847   Send(new ChromeUtilityHostMsg_GotIPhotoLibrary(result, parser.library()));
 848   ReleaseProcessIfNeeded();
 849 }
 850 #endif  // defined(OS_MACOSX)
 851
 852 #if defined(OS_WIN) || defined(OS_MACOSX)
 853 void ChromeContentUtilityClient::OnParseITunesLibraryXmlFile(
 854     const IPC::PlatformFileForTransit& itunes_library_file) {
 855   itunes::ITunesLibraryParser parser;
 856   base::PlatformFile file =
 857       IPC::PlatformFileForTransitToPlatformFile(itunes_library_file);
 858   bool result = parser.Parse(iapps::ReadPlatformFileAsString(file));
 859   Send(new ChromeUtilityHostMsg_GotITunesLibrary(result, parser.library()));
 860   ReleaseProcessIfNeeded();
 861 }
 862
 863 void ChromeContentUtilityClient::OnParsePicasaPMPDatabase(
 864     const picasa::AlbumTableFilesForTransit& album_table_files) {
 865   picasa::AlbumTableFiles files;
 866   files.indicator_file = IPC::PlatformFileForTransitToPlatformFile(
 867       album_table_files.indicator_file);
 868   files.category_file = IPC::PlatformFileForTransitToPlatformFile(
 869       album_table_files.category_file);
 870   files.date_file = IPC::PlatformFileForTransitToPlatformFile(
 871       album_table_files.date_file);
 872   files.filename_file = IPC::PlatformFileForTransitToPlatformFile(
 873       album_table_files.filename_file);
 874   files.name_file = IPC::PlatformFileForTransitToPlatformFile(
 875       album_table_files.name_file);
 876   files.token_file = IPC::PlatformFileForTransitToPlatformFile(
 877       album_table_files.token_file);
 878   files.uid_file = IPC::PlatformFileForTransitToPlatformFile(
 879       album_table_files.uid_file);
 880
 881   picasa::PicasaAlbumTableReader reader(files);
 882   bool parse_success = reader.Init();
 883   Send(new ChromeUtilityHostMsg_ParsePicasaPMPDatabase_Finished(
 884       parse_success,
 885       reader.albums(),
 886       reader.folders()));
 887   ReleaseProcessIfNeeded();
 888 }
 889
 890 void ChromeContentUtilityClient::OnIndexPicasaAlbumsContents(
 891     const picasa::AlbumUIDSet& album_uids,
 892     const std::vector<picasa::FolderINIContents>& folders_inis) {
 893   picasa::PicasaAlbumsIndexer indexer(album_uids);
 894   indexer.ParseFolderINI(folders_inis);
 895
 896   Send(new ChromeUtilityHostMsg_IndexPicasaAlbumsContents_Finished(
 897       indexer.albums_images()));
 898   ReleaseProcessIfNeeded();
 899 }
 900 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 901
 902 }  // namespace chrome