1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "chrome/browser/media_galleries/fileapi/safe_audio_video_checker.h"
8 #include "base/callback.h"
9 #include "base/location.h"
10 #include "base/logging.h"
11 #include "base/process/process_handle.h"
12 #include "chrome/common/chrome_utility_messages.h"
13 #include "content/public/browser/child_process_data.h"
14 #include "content/public/browser/utility_process_host.h"
15 #include "content/public/browser/browser_thread.h"
16 #include "ipc/ipc_message_macros.h"
17 #include "ipc/ipc_platform_file.h"
19 SafeAudioVideoChecker::SafeAudioVideoChecker(
20 const base::PlatformFile& file,
21 const fileapi::CopyOrMoveFileValidator::ResultCallback& callback)
22 : state_(INITIAL_STATE),
26 DCHECK(!callback.is_null());
29 void SafeAudioVideoChecker::Start() {
30 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
31 if (state_ != INITIAL_STATE)
33 state_ = PINGED_STATE;
36 if (*file_closer_.get() == base::kInvalidPlatformFileValue) {
37 callback_.Run(base::PLATFORM_FILE_ERROR_SECURITY);
38 state_ = FINISHED_STATE;
42 utility_process_host_ = content::UtilityProcessHost::Create(
43 this, base::MessageLoopProxy::current())->AsWeakPtr();
44 utility_process_host_->EnableZygote();
45 utility_process_host_->Send(new ChromeUtilityMsg_StartupPing);
48 SafeAudioVideoChecker::~SafeAudioVideoChecker() {}
50 void SafeAudioVideoChecker::OnProcessStarted() {
51 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
52 if (state_ != PINGED_STATE)
54 state_ = STARTED_STATE;
56 if (utility_process_host_->GetData().handle == base::kNullProcessHandle)
57 DLOG(ERROR) << "Child process handle is null";
58 IPC::PlatformFileForTransit file_for_transit =
59 IPC::GetFileHandleForProcess(*file_closer_.release(),
60 utility_process_host_->GetData().handle,
61 true /* close_source_handle */);
62 const int64 kFileDecodeTimeInMS = 250;
63 utility_process_host_->Send(new ChromeUtilityMsg_CheckMediaFile(
64 kFileDecodeTimeInMS, file_for_transit));
67 void SafeAudioVideoChecker::OnCheckingFinished(bool valid) {
68 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
69 if (state_ != STARTED_STATE)
71 state_ = FINISHED_STATE;
73 callback_.Run(valid ? base::PLATFORM_FILE_OK
74 : base::PLATFORM_FILE_ERROR_SECURITY);
77 void SafeAudioVideoChecker::OnProcessCrashed(int exit_code) {
78 OnCheckingFinished(false);
81 bool SafeAudioVideoChecker::OnMessageReceived(const IPC::Message& message) {
83 IPC_BEGIN_MESSAGE_MAP(SafeAudioVideoChecker, message)
84 IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ProcessStarted,
86 IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_CheckMediaFile_Finished,
88 IPC_MESSAGE_UNHANDLED(handled = false)