Add media file validation to utility process

chrome/utility/chrome_content_utility_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/utility/chrome_content_utility_client.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
+#include "base/time/time.h"
 #include "chrome/common/chrome_utility_messages.h"
 #include "chrome/common/extensions/chrome_manifest_handlers.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_l10n_util.h"
 #include "chrome/common/extensions/manifest.h"
 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
 #include "chrome/common/extensions/update_manifest.h"
 #include "chrome/common/safe_browsing/zip_analyzer.h"
 #include "chrome/utility/extensions/unpacker.h"
 #include "chrome/utility/profile_import_handler.h"
 #include "chrome/utility/web_resource_unpacker.h"
 #include "content/public/child/image_decoder_utils.h"
+#include "content/public/common/content_paths.h"
 #include "content/public/utility/utility_thread.h"
+#include "media/base/media.h"
+#include "media/base/media_file_checker.h"
 #include "printing/page_range.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/zlib/google/zip.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
 #if defined(OS_WIN)
 #include "base/file_util.h"
@@ skipping 81 matching lines @@
                         OnRenderPDFPagesToMetafile)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RobustJPEGDecodeImage,
                         OnRobustJPEGDecodeImage)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseJSON, OnParseJSON)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_GetPrinterCapsAndDefaults,
                         OnGetPrinterCapsAndDefaults)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_StartupPing, OnStartupPing)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_AnalyzeZipFileForDownloadProtection,
                         OnAnalyzeZipFileForDownloadProtection)
 
+#if !defined(OS_ANDROID) && !defined(OS_IOS)
+    IPC_MESSAGE_HANDLER(ChromeUtilityMsg_CheckMediaFile, OnCheckMediaFile)
+#endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
+
 #if defined(OS_CHROMEOS)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_CreateZipFile, OnCreateZipFile)
 #endif  // defined(OS_CHROMEOS)
 
 #if defined(OS_WIN)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseITunesPrefXml,
                         OnParseITunesPrefXml)
 #endif  // defined(OS_WIN)
 
 #if defined(OS_WIN) || defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseITunesLibraryXmlFile,
                         OnParseITunesLibraryXmlFile)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParsePicasaPMPDatabase,
                         OnParsePicasaPMPDatabase)
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   for (Handlers::iterator it = handlers_.begin();
        !handled && it != handlers_.end(); ++it) {
     handled = (*it)->OnMessageReceived(message);
   }
 
   return handled;
 }
 
+// static
 void ChromeContentUtilityClient::PreSandboxStartup() {
 #if defined(ENABLE_MDNS)
   local_discovery::ServiceDiscoveryMessageHandler::PreSandboxStartup();
 #endif  // ENABLE_MDNS
+
+  // Load media libraries for media file validation.
+  base::FilePath media_path;
+  PathService::Get(content::DIR_MEDIA_LIBS, &media_path);
+  if (!media_path.empty())
+    media::InitializeMediaLibrary(media_path);
 }
 
 void ChromeContentUtilityClient::OnUnpackExtension(
     const base::FilePath& extension_path,
     const std::string& extension_id,
     int location,
     int creation_flags) {
   CHECK_GT(location, extensions::Manifest::INVALID_LOCATION);
   CHECK_LT(location, extensions::Manifest::NUM_LOCATIONS);
   extensions::PermissionsInfo::GetInstance()->InitializeWithDelegate(
@@ skipping 339 matching lines @@
 void ChromeContentUtilityClient::OnAnalyzeZipFileForDownloadProtection(
     IPC::PlatformFileForTransit zip_file) {
   safe_browsing::zip_analyzer::Results results;
   safe_browsing::zip_analyzer::AnalyzeZipFile(
       IPC::PlatformFileForTransitToPlatformFile(zip_file), &results);
   Send(new ChromeUtilityHostMsg_AnalyzeZipFileForDownloadProtection_Finished(
       results));
   ReleaseProcessIfNeeded();
 }
 
+#if !defined(OS_ANDROID) && !defined(OS_IOS)
+void ChromeContentUtilityClient::OnCheckMediaFile(
+    int64 milliseconds_of_decoding,
+    IPC::PlatformFileForTransit media_file) {
+  bool check_success = false;

[DaleCurtis, 2013/08/08 21:04:33]

const and move this declaration below to checker.Start() ?

[vandebo (ex-Chrome), 2013/08/08 23:04:18]

Done.

+  media::MediaFileChecker
+      checker(IPC::PlatformFileForTransitToPlatformFile(media_file));
+  check_success = checker.Start(
+      base::TimeDelta::FromMilliseconds(milliseconds_of_decoding));
+  Send(new ChromeUtilityHostMsg_CheckMediaFile_Finished(check_success));
+  ReleaseProcessIfNeeded();
+}
+#endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
+
 #if defined(OS_WIN)
 void ChromeContentUtilityClient::OnParseITunesPrefXml(
     const std::string& itunes_xml_data) {
   base::FilePath library_path(
       itunes::FindLibraryLocationInPrefXml(itunes_xml_data));
   Send(new ChromeUtilityHostMsg_GotITunesDirectory(library_path));
   ReleaseProcessIfNeeded();
 }
 #endif  // defined(OS_WIN)
 
@@ skipping 46 matching lines @@
     indexer.ParseFolderINI(it->folder_path, it->ini_contents);
   }
 
   Send(new ChromeUtilityHostMsg_IndexPicasaAlbumsContents_Finished(
       indexer.albums_images()));
   ReleaseProcessIfNeeded();
 }
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 
 }  // namespace chrome