content/browser/download/base_file_posix.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/download/base_file.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "content/public/browser/download_interrupt_reasons.h"
   9
  10 namespace content {
  11
  12 DownloadInterruptReason BaseFile::MoveFileAndAdjustPermissions(
  13     const base::FilePath& new_path) {
  14   // Similarly, on Unix, we're moving a temp file created with permissions 600
  15   // to |new_path|. Here, we try to fix up the destination file with appropriate
  16   // permissions.
  17   struct stat st;
  18   // First check the file existence and create an empty file if it doesn't
  19   // exist.
  20   if (!base::PathExists(new_path)) {
  21     int write_error = base::WriteFile(new_path, "", 0);
  22     if (write_error < 0)
  23       return LogSystemError("WriteFile", errno);
  24   }
  25   int stat_error = stat(new_path.value().c_str(), &st);
  26   bool stat_succeeded = (stat_error == 0);
  27   if (!stat_succeeded)
  28     LogSystemError("stat", errno);
  29
  30   if (!base::Move(full_path_, new_path))
  31     return LogSystemError("Move", errno);
  32
  33   if (stat_succeeded) {
  34     // On Windows file systems (FAT, NTFS), chmod fails.  This is OK.
  35     int chmod_error = chmod(new_path.value().c_str(), st.st_mode);
  36     if (chmod_error < 0)
  37       LogSystemError("chmod", errno);
  38   }
  39   return DOWNLOAD_INTERRUPT_REASON_NONE;
  40 }
  41
  42 }  // namespace content