chrome/browser/platform_util_linux.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 "chrome/browser/platform_util.h"
   6
   7 #include "base/bind.h"
   8 #include "base/files/file_util.h"
   9 #include "base/process/kill.h"
  10 #include "base/process/launch.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "chrome/browser/platform_util_internal.h"
  13 #include "content/public/browser/browser_thread.h"
  14 #include "url/gurl.h"
  15
  16 using content::BrowserThread;
  17
  18 namespace platform_util {
  19
  20 namespace {
  21
  22 void XDGUtil(const std::string& util,
  23              const base::FilePath& working_directory,
  24              const std::string& arg) {
  25   std::vector<std::string> argv;
  26   argv.push_back(util);
  27   argv.push_back(arg);
  28
  29   base::LaunchOptions options;
  30   options.current_directory = working_directory;
  31   options.allow_new_privs = true;
  32   // xdg-open can fall back on mailcap which eventually might plumb through
  33   // to a command that needs a terminal.  Set the environment variable telling
  34   // it that we definitely don't have a terminal available and that it should
  35   // bring up a new terminal if necessary.  See "man mailcap".
  36   options.environ["MM_NOTTTY"] = "1";
  37
  38   // In Google Chrome, we do not let GNOME's bug-buddy intercept our crashes.
  39   // However, we do not want this environment variable to propagate to external
  40   // applications. See http://crbug.com/24120
  41   char* disable_gnome_bug_buddy = getenv("GNOME_DISABLE_CRASH_DIALOG");
  42   if (disable_gnome_bug_buddy &&
  43       disable_gnome_bug_buddy == std::string("SET_BY_GOOGLE_CHROME"))
  44     options.environ["GNOME_DISABLE_CRASH_DIALOG"] = std::string();
  45
  46   base::Process process = base::LaunchProcess(argv, options);
  47   if (process.IsValid())
  48     base::EnsureProcessGetsReaped(process.Pid());
  49 }
  50
  51 void XDGOpen(const base::FilePath& working_directory, const std::string& path) {
  52   XDGUtil("xdg-open", working_directory, path);
  53 }
  54
  55 void XDGEmail(const std::string& email) {
  56   XDGUtil("xdg-email", base::FilePath(), email);
  57 }
  58
  59 }  // namespace
  60
  61 namespace internal {
  62
  63 void PlatformOpenVerifiedItem(const base::FilePath& path, OpenItemType type) {
  64   switch (type) {
  65     case OPEN_FILE:
  66       XDGOpen(path.DirName(), path.value());
  67       break;
  68     case OPEN_FOLDER:
  69       // The utility process checks the working directory prior to the
  70       // invocation of xdg-open by changing the current directory into it. This
  71       // operation only succeeds if |path| is a directory. Opening "." from
  72       // there ensures that the target of the operation is a directory.  Note
  73       // that there remains a TOCTOU race where the directory could be unlinked
  74       // between the time the utility process changes into the directory and the
  75       // time the application invoked by xdg-open inspects the path by name.
  76       XDGOpen(path, ".");
  77       break;
  78   }
  79 }
  80 }  // namespace internal
  81
  82 void ShowItemInFolder(Profile* profile, const base::FilePath& full_path) {
  83   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  84   // TODO(estade): It would be nice to be able to select the file in the file
  85   // manager, but that probably requires extending xdg-open. For now just show
  86   // the folder.
  87   OpenItem(profile, full_path.DirName(), OPEN_FOLDER, OpenOperationCallback());
  88 }
  89
  90 void OpenExternal(Profile* profile, const GURL& url) {
  91   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  92   if (url.SchemeIs("mailto"))
  93     XDGEmail(url.spec());
  94   else
  95     XDGOpen(base::FilePath(), url.spec());
  96 }
  97
  98 }  // namespace platform_util