netwerk/ipc/RemoteOpenFileParent.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set sw=2 ts=8 et tw=80 : */
   3
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include "mozilla/net/RemoteOpenFileParent.h"
   9 #include "mozilla/unused.h"
  10 #include "nsEscape.h"
  11
  12 #if !defined(XP_WIN) && !defined(MOZ_WIDGET_COCOA)
  13 #include <fcntl.h>
  14 #include <unistd.h>
  15 #endif
  16
  17 namespace mozilla {
  18 namespace net {
  19
  20 void
  21 RemoteOpenFileParent::ActorDestroy(ActorDestroyReason aWhy)
  22 {
  23   // Implement me! Bug 1005186
  24 }
  25
  26 bool
  27 RemoteOpenFileParent::OpenSendCloseDelete()
  28 {
  29 #if defined(XP_WIN) || defined(MOZ_WIDGET_COCOA)
  30   MOZ_CRASH("OS X and Windows shouldn't be doing IPDL here");
  31 #else
  32
  33   // TODO: make this async!
  34
  35   FileDescriptor fileDescriptor;
  36
  37   nsAutoCString path;
  38   nsresult rv = mURI->GetFilePath(path);
  39   NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "GetFilePath failed!");
  40
  41   NS_UnescapeURL(path);
  42
  43   if (NS_SUCCEEDED(rv)) {
  44     int fd = open(path.get(), O_RDONLY);
  45     if (fd == -1) {
  46       printf_stderr("RemoteOpenFileParent: file '%s' was not found!\n",
  47                     path.get());
  48     } else {
  49       fileDescriptor = FileDescriptor(fd);
  50       // FileDescriptor does a dup() internally, so we need to close our fd
  51       close(fd);
  52     }
  53   }
  54
  55   // Sending a potentially invalid file descriptor is just fine.
  56   unused << Send__delete__(this, fileDescriptor);
  57
  58   // Current process's file descriptor is closed by FileDescriptor destructor.
  59 #endif // OS_TYPE
  60
  61   return true;
  62 }
  63
  64 } // namespace net
  65 } // namespace mozilla