The Tor Browser: ipc/glue/ScopedXREEmbed.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

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

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

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

     5 #include "ScopedXREEmbed.h"

     7 #include "base/command_line.h"

     8 #include "base/string_util.h"

    10 #include "nsIFile.h"

    12 #include "nsCOMPtr.h"

    13 #include "nsServiceManagerUtils.h"

    14 #include "nsString.h"

    15 #include "nsXULAppAPI.h"

    17 using mozilla::ipc::ScopedXREEmbed;

    19 ScopedXREEmbed::ScopedXREEmbed()

    20 : mShouldKillEmbedding(false)

    21 {

    22   NS_LogInit();

    23 }

    25 ScopedXREEmbed::~ScopedXREEmbed()

    26 {

    27   Stop();

    28   NS_LogTerm();

    29 }

    31 void

    32 ScopedXREEmbed::SetAppDir(const nsACString& aPath)

    33 {

    34   bool flag;

    35   nsresult rv =

    36     XRE_GetFileFromPath(aPath.BeginReading(), getter_AddRefs(mAppDir));

    37   if (NS_FAILED(rv) ||

    38       NS_FAILED(mAppDir->Exists(&flag)) || !flag) {

    39     NS_WARNING("Invalid application directory passed to content process.");

    40     mAppDir = nullptr;

    41   }

    42 }

    44 void

    45 ScopedXREEmbed::Start()

    46 {

    47   std::string path;

    48 #if defined(OS_WIN)

    49   path = WideToUTF8(CommandLine::ForCurrentProcess()->program());

    50 #elif defined(OS_POSIX)

    51   path = CommandLine::ForCurrentProcess()->argv()[0];

    52 #else

    53 #  error Sorry

    54 #endif

    56   nsCOMPtr<nsIFile> localFile;

    57   nsresult rv = XRE_GetBinaryPath(path.c_str(), getter_AddRefs(localFile));

    58   if (NS_FAILED(rv))

    59     return;

    61   nsCOMPtr<nsIFile> parent;

    62   rv = localFile->GetParent(getter_AddRefs(parent));

    63   if (NS_FAILED(rv))

    64     return;

    66   localFile = do_QueryInterface(parent);

    67   NS_ENSURE_TRUE_VOID(localFile);

    69 #ifdef OS_MACOSX

    70   if (XRE_GetProcessType() == GeckoProcessType_Content) {

    71     // We're an XPCOM-using subprocess.  Walk out of

    72     // [subprocess].app/Contents/MacOS to the real GRE dir.

    73     rv = localFile->GetParent(getter_AddRefs(parent));

    74     if (NS_FAILED(rv))

    75       return;

    77     localFile = do_QueryInterface(parent);

    78     NS_ENSURE_TRUE_VOID(localFile);

    80     rv = localFile->GetParent(getter_AddRefs(parent));

    81     if (NS_FAILED(rv))

    82       return;

    84     localFile = do_QueryInterface(parent);

    85     NS_ENSURE_TRUE_VOID(localFile);

    87     rv = localFile->GetParent(getter_AddRefs(parent));

    88     if (NS_FAILED(rv))

    89       return;

    91     localFile = do_QueryInterface(parent);

    92     NS_ENSURE_TRUE_VOID(localFile);

    93   }

    94 #endif

    96   if (mAppDir)

    97     rv = XRE_InitEmbedding2(localFile, mAppDir, nullptr);

    98   else

    99     rv = XRE_InitEmbedding2(localFile, localFile, nullptr);

   100   if (NS_FAILED(rv))

   101     return;

   103   mShouldKillEmbedding = true;

   104 }

   106 void

   107 ScopedXREEmbed::Stop()

   108 {

   109   if (mShouldKillEmbedding) {

   110     XRE_TermEmbedding();

   111     mShouldKillEmbedding = false;

   112   }

   113 }

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