The Tor Browser: dom/filesystem/FileSystemUtils.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

     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 file,

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

     7 #include "mozilla/dom/FileSystemUtils.h"

     9 #include "nsXULAppAPI.h"

    11 namespace mozilla {

    12 namespace dom {

    14 // static

    15 void

    16 FileSystemUtils::LocalPathToNormalizedPath(const nsAString& aLocal,

    17                                            nsAString& aNorm)

    18 {

    19   nsString result;

    20   result = aLocal;

    21 #if defined(XP_WIN)

    22   char16_t* cur = result.BeginWriting();

    23   char16_t* end = result.EndWriting();

    24   for (; cur < end; ++cur) {

    25     if (char16_t('\\') == *cur)

    26       *cur = char16_t('/');

    27   }

    28 #endif

    29   aNorm = result;

    30 }

    32 // static

    33 void

    34 FileSystemUtils::NormalizedPathToLocalPath(const nsAString& aNorm,

    35                                            nsAString& aLocal)

    36 {

    37   nsString result;

    38   result = aNorm;

    39 #if defined(XP_WIN)

    40   char16_t* cur = result.BeginWriting();

    41   char16_t* end = result.EndWriting();

    42   for (; cur < end; ++cur) {

    43     if (char16_t('/') == *cur)

    44       *cur = char16_t('\\');

    45   }

    46 #endif

    47   aLocal = result;

    48 }

    50 // static

    51 bool

    52 FileSystemUtils::IsDescendantPath(const nsAString& aPath,

    53                                   const nsAString& aDescendantPath)

    54 {

    55   // The descendant path should begin with its ancestor path.

    56   nsAutoString prefix;

    57   prefix = aPath + NS_LITERAL_STRING(FILESYSTEM_DOM_PATH_SEPARATOR);

    59   // Check the sub-directory path to see if it has the parent path as prefix.

    60   if (aDescendantPath.Length() < prefix.Length() ||

    61       !StringBeginsWith(aDescendantPath, prefix)) {

    62     return false;

    63   }

    65   return true;

    66 }

    68 // static

    69 bool

    70 FileSystemUtils::IsParentProcess()

    71 {

    72   return XRE_GetProcessType() == GeckoProcessType_Default;

    73 }

    75 } // namespace dom

    76 } // namespace mozilla

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