metasploit-framework/lib/rex/file.rb

98 lines
2.2 KiB
Ruby

require 'find'
require 'rex/compat'
require 'tempfile'
module Rex
###
#
# This class provides helper methods for dealing with files that are not
# supplied by the standard ruby API.
#
###
module FileUtils
#
# This method searches the PATH environment variable for
# a fully qualified path to the supplied file name.
#
def self.find_full_path(file_name)
# Check for the absolute fast first
if (file_name[0,1] == "/" and ::File.exists?(file_name) and ::File::Stat.new(file_name))
return file_name
end
path = Rex::Compat.getenv('PATH')
if (path)
path.split(::File::PATH_SEPARATOR).each { |base|
begin
# Deal with Windows paths surrounded by quotes. Prevents
# silliness like trying to look for
# '"C:\\framework\\nmap"\\nmap.exe' which will always fail.
base = $1 if base =~ /^"(.*)"$/
path = base + ::File::SEPARATOR + file_name
if (::File::Stat.new(path) and not ::File.directory?(path))
return path
end
rescue
end
}
end
return nil
end
end
class Quickfile < ::Tempfile
def initialize(*args)
super(*args)
self.binmode
ObjectSpace.undefine_finalizer(self)
end
end
module Find
#
# Identical to Find.find from Ruby, but follows symlinks to directories.
# See http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/68671
#
def self.find(*paths)
paths.collect!{|d| d.dup}
while file = paths.shift
catch(:prune) do
yield file.dup.taint
next unless File.exist? file
begin
if File.stat(file).directory? then
d = Dir.open(file)
begin
for f in d
next if f == "." or f == ".."
if File::ALT_SEPARATOR and file =~ /^(?:[\/\\]|[A-Za-z]:[\/\\]?)$/ then
f = file + f
elsif file == "/" then
f = "/" + f
else
f = File.join(file, f)
end
paths.unshift f.untaint
end
ensure
d.close
end
end
rescue Errno::ENOENT, Errno::EACCES
end
end
end
end
def self.prune
throw :prune
end
end
end