Module: Fusuma::Plugin::Appmatcher::UserSwitcher

Includes:
CustomProcess
Included in:
Gnome, GnomeExtension, GnomeExtensions::Installer, UnsupportedBackend, X11
Defined in:
lib/fusuma/plugin/appmatcher/user_switcher.rb

Overview

Drop sudo privileges

Defined Under Namespace

Classes: User

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.login_user ⇒ Object 



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# File 'lib/fusuma/plugin/appmatcher/user_switcher.rb', line 33

def 
  @login_user ||= begin
    username = ENV["SUDO_USER"] || Etc.getlogin
    uid = `id -u #{username}`.chomp.to_i
    gid = `id -g #{username}`.chomp.to_i
    User.new(username, uid, gid)
  end
end

Instance Method Details

#as_user(user = login_user, proctitle:) ⇒ Object

Execute the provided block in a child process as the specified user The parent blocks until the child finishes.



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# File 'lib/fusuma/plugin/appmatcher/user_switcher.rb', line 23

def as_user(user = , proctitle:)
  self.proctitle = "#{self.class.name.underscore}(#{user.username}) -> #{proctitle}"

  fork do
    drop_priv(user)
    yield(user) if block_given?
  end
end

#drop_priv(user) ⇒ Object

Drops privileges to that of the specified user



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# File 'lib/fusuma/plugin/appmatcher/user_switcher.rb', line 14

def drop_priv(user)
  # Process.initgroups(user.username, user.gid)
  Process::Sys.setegid(user.gid)
  Process::Sys.setgid(user.gid)
  Process::Sys.setuid(user.uid)
end