The Tor Browser: dom/filesystem/FileSystemRequestParent.cpp@7e26c7da4463

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "mozilla/dom/FileSystemRequestParent.h"

     8 #include "CreateDirectoryTask.h"

     9 #include "CreateFileTask.h"

    10 #include "GetFileOrDirectoryTask.h"

    11 #include "RemoveTask.h"

    13 #include "mozilla/AppProcessChecker.h"

    14 #include "mozilla/dom/FileSystemBase.h"

    16 namespace mozilla {

    17 namespace dom {

    19 FileSystemRequestParent::FileSystemRequestParent()

    20 {

    21 }

    23 FileSystemRequestParent::~FileSystemRequestParent()

    24 {

    25 }

    27 #define FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(name)                         \

    28     case FileSystemParams::TFileSystem##name##Params: {                        \

    29       const FileSystem##name##Params& p = aParams;                             \

    30       mFileSystem = FileSystemBase::FromString(p.filesystem());                \

    31       task = new name##Task(mFileSystem, p, this);                             \

    32       break;                                                                   \

    33     }

    35 bool

    36 FileSystemRequestParent::Dispatch(ContentParent* aParent,

    37                                   const FileSystemParams& aParams)

    38 {

    39   MOZ_ASSERT(aParent, "aParent should not be null.");

    40   nsRefPtr<FileSystemTaskBase> task;

    41   switch (aParams.type()) {

    43     FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateDirectory)

    44     FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateFile)

    45     FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(GetFileOrDirectory)

    46     FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(Remove)

    48     default: {

    49       NS_RUNTIMEABORT("not reached");

    50       break;

    51     }

    52   }

    54   if (NS_WARN_IF(!task || !mFileSystem)) {

    55     // Should never reach here.

    56     return false;

    57   }

    59   if (!mFileSystem->IsTesting()) {

    60     // Check the content process permission.

    62     nsCString access;

    63     task->GetPermissionAccessType(access);

    65     nsAutoCString permissionName;

    66     permissionName = mFileSystem->GetPermission();

    67     permissionName.AppendLiteral("-");

    68     permissionName.Append(access);

    70     if (!AssertAppProcessPermission(aParent, permissionName.get())) {

    71       return false;

    72     }

    73   }

    75   task->Start();

    76   return true;

    77 }

    79 void

    80 FileSystemRequestParent::ActorDestroy(ActorDestroyReason why)

    81 {

    82   if (!mFileSystem) {

    83     return;

    84   }

    85   mFileSystem->Shutdown();

    86   mFileSystem = nullptr;

    87 }

    89 } // namespace dom

    90 } // namespace mozilla

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