DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (56e7b9127e89)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=2 et :
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "GMPProcessParent.h"
#include "GMPUtils.h"
#include "nsIFile.h"
#include "nsIRunnable.h"
#if defined(XP_WIN) && defined(MOZ_SANDBOX)
#include "WinUtils.h"
#endif
#include "GMPLog.h"

#include "base/string_util.h"
#include "base/process_util.h"

#include <string>

using std::vector;
using std::string;

using mozilla::gmp::GMPProcessParent;
using mozilla::ipc::GeckoChildProcessHost;

static const int kInvalidFd = -1;

namespace mozilla {
namespace gmp {

GMPProcessParent::GMPProcessParent(const std::string& aGMPPath)
: GeckoChildProcessHost(GeckoProcessType_GMPlugin),
  mGMPPath(aGMPPath)
{
  MOZ_COUNT_CTOR(GMPProcessParent);
}

GMPProcessParent::~GMPProcessParent()
{
  MOZ_COUNT_DTOR(GMPProcessParent);
}

bool
GMPProcessParent::Launch(int32_t aTimeoutMs)
{
  vector<string> args;

#if defined(XP_WIN) && defined(MOZ_SANDBOX)
  std::wstring wGMPPath = UTF8ToWide(mGMPPath.c_str());

  // The sandbox doesn't allow file system rules where the paths contain
  // symbolic links or junction points. Sometimes the Users folder has been
  // moved to another drive using a junction point, so allow for this specific
  // case. See bug 1236680 for details.
  if (!widget::WinUtils::ResolveJunctionPointsAndSymLinks(wGMPPath)) {
    GMP_LOG("ResolveJunctionPointsAndSymLinks failed for GMP path=%S",
            wGMPPath.c_str());
    NS_WARNING("ResolveJunctionPointsAndSymLinks failed for GMP path.");
    return false;
  }
  GMP_LOG("GMPProcessParent::Launch() resolved path to %S", wGMPPath.c_str());

  // If the GMP path is a network path that is not mapped to a drive letter,
  // then we need to fix the path format for the sandbox rule.
  wchar_t volPath[MAX_PATH];
  if (::GetVolumePathNameW(wGMPPath.c_str(), volPath, MAX_PATH) &&
      ::GetDriveTypeW(volPath) == DRIVE_REMOTE &&
      wGMPPath.compare(0, 2, L"\\\\") == 0) {
    std::wstring sandboxGMPPath(wGMPPath);
    sandboxGMPPath.insert(1, L"??\\UNC");
    mAllowedFilesRead.push_back(sandboxGMPPath + L"\\*");
  } else {
    mAllowedFilesRead.push_back(wGMPPath + L"\\*");
  }

  args.push_back(WideToUTF8(wGMPPath));
#else
  args.push_back(mGMPPath);
#endif

#ifdef MOZ_WIDGET_ANDROID
  // Add dummy values for pref and pref map to the file descriptors remapping
  // table. See bug 1440207 and 1481139.
  AddFdToRemap(kInvalidFd, kInvalidFd);
  AddFdToRemap(kInvalidFd, kInvalidFd);
#endif
  return SyncLaunch(args, aTimeoutMs);
}

void
GMPProcessParent::Delete(nsCOMPtr<nsIRunnable> aCallback)
{
  mDeletedCallback = aCallback;
  XRE_GetIOMessageLoop()->PostTask(NewNonOwningRunnableMethod(
    "gmp::GMPProcessParent::DoDelete", this, &GMPProcessParent::DoDelete));
}

void
GMPProcessParent::DoDelete()
{
  MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
  Join();

  if (mDeletedCallback) {
    mDeletedCallback->Run();
  }

  delete this;
}

} // namespace gmp
} // namespace mozilla