dom/filesystem/FileSystemPermissionRequest.cpp
author Nathan Froyd <froydnj@mozilla.com>
Wed, 07 Oct 2015 16:50:25 -0400
changeset 266617 91d4539e00cecb658604e021675a923c60ef3235
parent 253922 d9f93c3850e9121ee8827602fce09df0717bd75e
child 266639 41dea9df27ed995f8315ab4318c187a617937664
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "FileSystemPermissionRequest.h"

#include "mozilla/dom/FileSystemBase.h"
#include "mozilla/dom/FileSystemTaskBase.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "nsIDocument.h"
#include "nsPIDOMWindow.h"
#include "nsContentPermissionHelper.h"

namespace mozilla {
namespace dom {

NS_IMPL_ISUPPORTS(FileSystemPermissionRequest, nsIRunnable, nsIContentPermissionRequest)

// static
void
FileSystemPermissionRequest::RequestForTask(FileSystemTaskBase* aTask)
{
  MOZ_ASSERT(aTask, "aTask should not be null!");
  MOZ_ASSERT(NS_IsMainThread());
  RefPtr<FileSystemPermissionRequest> request =
    new FileSystemPermissionRequest(aTask);
  NS_DispatchToCurrentThread(request);
}

FileSystemPermissionRequest::FileSystemPermissionRequest(
  FileSystemTaskBase* aTask)
  : mTask(aTask)
{
  MOZ_ASSERT(mTask, "aTask should not be null!");
  MOZ_ASSERT(NS_IsMainThread());

  mTask->GetPermissionAccessType(mPermissionAccess);

  RefPtr<FileSystemBase> filesystem = mTask->GetFileSystem();
  if (!filesystem) {
    return;
  }

  mPermissionType = filesystem->GetPermission();

  mWindow = filesystem->GetWindow();
  if (!mWindow) {
    return;
  }

  nsCOMPtr<nsIDocument> doc = mWindow->GetDoc();
  if (!doc) {
    return;
  }

  mPrincipal = doc->NodePrincipal();
  mRequester = new nsContentPermissionRequester(mWindow);
}

FileSystemPermissionRequest::~FileSystemPermissionRequest()
{
}

NS_IMETHODIMP
FileSystemPermissionRequest::GetTypes(nsIArray** aTypes)
{
  nsTArray<nsString> emptyOptions;
  return nsContentPermissionUtils::CreatePermissionArray(mPermissionType,
                                                         mPermissionAccess,
                                                         emptyOptions,
                                                         aTypes);
}

NS_IMETHODIMP
FileSystemPermissionRequest::GetPrincipal(nsIPrincipal** aRequestingPrincipal)
{
  NS_IF_ADDREF(*aRequestingPrincipal = mPrincipal);
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::GetWindow(nsIDOMWindow** aRequestingWindow)
{
  NS_IF_ADDREF(*aRequestingWindow = mWindow);
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::GetElement(nsIDOMElement** aRequestingElement)
{
  *aRequestingElement = nullptr;
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::Cancel()
{
  MOZ_ASSERT(NS_IsMainThread());
  mTask->SetError(NS_ERROR_DOM_SECURITY_ERR);
  mTask->Start();
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::Allow(JS::HandleValue aChoices)
{
  MOZ_ASSERT(NS_IsMainThread());
  MOZ_ASSERT(aChoices.isUndefined());
  mTask->Start();
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::Run()
{
  MOZ_ASSERT(NS_IsMainThread());

  RefPtr<FileSystemBase> filesystem = mTask->GetFileSystem();
  if (!filesystem) {
    Cancel();
    return NS_OK;
  }

  if (!filesystem->RequiresPermissionChecks()) {
    Allow(JS::UndefinedHandleValue);
    return NS_OK;
  }

  if (!mWindow) {
    Cancel();
    return NS_OK;
  }

  nsContentPermissionUtils::AskPermission(this, mWindow);
  return NS_OK;
}

NS_IMETHODIMP
FileSystemPermissionRequest::GetRequester(nsIContentPermissionRequester** aRequester)
{
  NS_ENSURE_ARG_POINTER(aRequester);

  nsCOMPtr<nsIContentPermissionRequester> requester = mRequester;
  requester.forget(aRequester);
  return NS_OK;
}

} /* namespace dom */
} /* namespace mozilla */