Module: Rex::Compat

Defined in:
lib/rex/compat.rb

Overview

This class provides os-specific functionality

Constant Summary collapse

STD_INPUT_HANDLE = 
-10
STD_OUTPUT_HANDLE = 
-11
STD_ERROR_HANDLE = 
-12
GENERIC_READ = 
0x80000000
GENERIC_WRITE = 
0x40000000
GENERIC_EXECUTE = 
0x20000000
FILE_SHARE_READ = 
0x00000001
FILE_SHARE_WRITE = 
0x00000002
OPEN_EXISTING = 
0x00000003
ENABLE_LINE_INPUT = 
2
ENABLE_ECHO_INPUT = 
4
ENABLE_PROCESSED_INPUT = 
1
@@is_windows =

Platform detection

@@is_cygwin = @@is_macosx = @@is_linux = @@is_bsdi = @@is_freebsd = @@is_netbsd = @@is_openbsd = @@is_java = false
@@loaded_win32api = 
false
@@loaded_tempfile = 
false
@@loaded_fileutils = 
false

Class Method Summary collapse

Class Method Details

.cygwin_to_win32(path) ⇒ Object 



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# File 'lib/rex/compat.rb', line 95

def self.cygwin_to_win32(path)
	if(path !~ /^\/cygdrive/)
		return ::IO.popen("cygpath -w #{path}", "rb").read.strip
	end
	dir = path.split("/")
	dir.shift
	dir.shift
	dir[0] = dir[0] + ":"
	dir.join("\\")
end

.getenv(var) ⇒ Object 



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# File 'lib/rex/compat.rb', line 179

def self.getenv(var)
	if (is_windows and @@loaded_win32api)
		f = Win32API.new("kernel32", "GetEnvironmentVariable", ["P", "P", "I"], "I")
		buff = "\x00" * 16384
		sz = f.call(var, buff, buff.length)
		return nil if sz == 0
		buff[0,sz]
	else
		ENV[var]
	end
end

.is_bsdi ⇒ Object 



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# File 'lib/rex/compat.rb', line 58

def self.is_bsdi
	return @@is_bsdi if @@is_bsdi
	@@is_bsdi = (RUBY_PLATFORM =~ /bsdi/i) ? true : false
end

.is_cygwin ⇒ Object 



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# File 'lib/rex/compat.rb', line 43

def self.is_cygwin
	return @@is_cygwin if @@is_cygwin
	@@is_cygwin = (RUBY_PLATFORM =~ /cygwin/) ? true : false
end

.is_freebsd ⇒ Object 



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# File 'lib/rex/compat.rb', line 68

def self.is_freebsd
	return @@is_freebsd if @@is_freebsd
	@@is_freebsd = (RUBY_PLATFORM =~ /freebsd/) ? true : false
end

.is_java ⇒ Object 



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# File 'lib/rex/compat.rb', line 78

def self.is_java
	return @@is_java if @@is_java
	@@is_java = (RUBY_PLATFORM =~ /java/) ? true : false
end

.is_linux ⇒ Object 



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# File 'lib/rex/compat.rb', line 53

def self.is_linux
	return @@is_linux if @@is_linux
	@@is_linux = (RUBY_PLATFORM =~ /linux/) ? true : false
end

.is_macosx ⇒ Object 



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# File 'lib/rex/compat.rb', line 48

def self.is_macosx
	return @@is_macosx if @@is_macosx
	@@is_macosx = (RUBY_PLATFORM =~ /darwin/) ? true : false
end

.is_netbsd ⇒ Object 



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# File 'lib/rex/compat.rb', line 63

def self.is_netbsd
	return @@is_netbsd if @@is_netbsd
	@@is_netbsd = (RUBY_PLATFORM =~ /netbsd/) ? true : false
end

.is_openbsd ⇒ Object 



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# File 'lib/rex/compat.rb', line 73

def self.is_openbsd
	return @@is_openbsd if @@is_openbsd
	@@is_openbsd = (RUBY_PLATFORM =~ /openbsd/) ? true : false
end

.is_windows ⇒ Object 



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# File 'lib/rex/compat.rb', line 38

def self.is_windows
	return @@is_windows if @@is_windows
	@@is_windows = (RUBY_PLATFORM =~ /mswin32|mingw32/) ? true : false
end

.is_wow64 ⇒ Object 



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# File 'lib/rex/compat.rb', line 83

def self.is_wow64
	return false if not is_windows
	is64 = false
	begin
		buff = "\x00" * 4
		Win32API.new("kernel32","IsWow64Process",['L','P'],'L').call(-1, buff)
		is64 = (buff.unpack("V")[0]) == 1 ? true : false
	rescue ::Exception
	end
	is64
end

.open_browser(url = 'http://metasploit.com/') ⇒ Object 



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# File 'lib/rex/compat.rb', line 116

def self.open_browser(url='http://metasploit.com/')
	case RUBY_PLATFORM
	when /cygwin/
		if(url[0,1] == "/")
			self.open_file(url)
		end
		return if not @@loaded_win32api
		Win32API.new("shell32.dll", "ShellExecute", ["PPPPPL"], "L").call(nil, "open", url, nil, nil, 0)
	when /mswin32|mingw/
		return if not @@loaded_win32api
		Win32API.new("shell32.dll", "ShellExecute", ["PPPPPL"], "L").call(nil, "open", url, nil, nil, 0)
	when /darwin/
		system("open #{url}")
	else
		# Search through the PATH variable (if it exists) and chose a browser
		# We are making an assumption about the nature of "PATH" so tread lightly
		if defined? ENV['PATH']
			# "sensible-browser" opens the "default" browser in Ubuntu and others, so try that first
			#  but also provide fallbacks
			['sensible-browser', 'firefox', 'opera', 'chromium-browser', 'konqueror'].each do |browser|
					ENV['PATH'].split(':').each do |path|
					# Does the browser exists?
					if File.exists?("#{path}/#{browser}")
						system("#{browser} #{url} &")
						return
					end
				end
			end
		end

		# If nothing else worked, default to firefox
		system("firefox #{url} &")
	end
end

.open_email(addr) ⇒ Object 



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# File 'lib/rex/compat.rb', line 151

def self.open_email(addr)
	case RUBY_PLATFORM
	when /mswin32|cygwin/
		return if not @@loaded_win32api
		Win32API.new("shell32.dll", "ShellExecute", ["PPPPPL"], "L").call(nil, "open", "mailto:"+addr, nil, nil, 0)
	when /darwin/
		system("open mailto:#{addr}")
	else
		# ?
	end
end

.open_file(url = '') ⇒ Object 



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# File 'lib/rex/compat.rb', line 106

def self.open_file(url='')
	case RUBY_PLATFORM
	when /cygwin/
		path = self.cygwin_to_win32(url)
		system(["cmd", "cmd"], "/c", "explorer", path)
	else
		self.open_browser(url)
	end
end

.pipe ⇒ Object

Platform independent socket pair



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# File 'lib/rex/compat.rb', line 226

def self.pipe

	if (! is_windows())
		# Standard pipes should be fine
		return ::IO.pipe
	end

	# Create a socket connection for Windows
	serv = nil
	port = 1024

	while (! serv and port < 65535)
		begin
			serv = TCPServer.new('127.0.0.1', (port += 1))
		rescue ::Exception
		end
	end

	pipe1 = TCPSocket.new('127.0.0.1', port)

	# Accept the forked child
	pipe2 = serv.accept

	# Shutdown the server
	serv.close

	return [pipe1, pipe2]
end

.play_sound(path) ⇒ Object 



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# File 'lib/rex/compat.rb', line 163

def self.play_sound(path)
	case RUBY_PLATFORM
	when /cygwin/
		path = self.cygwin_to_win32(path)
		return if not @@loaded_win32api
		Win32API.new("winmm.dll", "sndPlaySoundA", ["SI"], "I").call(path, 0x20000)
	when /mswin32/
		return if not @@loaded_win32api
		Win32API.new("winmm.dll", "sndPlaySoundA", ["SI"], "I").call(path, 0x20000)
	when /darwin/
		system("afplay #{path} >/dev/null 2>&1")
	else
		system("aplay #{path} >/dev/null 2>&1")
	end
end

.setenv(var, val) ⇒ Object 



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# File 'lib/rex/compat.rb', line 191

def self.setenv(var,val)
	if (is_windows and @@loaded_win32api)
		f = Win32API.new("kernel32", "SetEnvironmentVariable", ["P", "P"], "I")
		f.call(var, val + "\x00")
	else
		ENV[var]= val
	end
end

.temp_copy(path) ⇒ Object

Copy a file to a temporary path

Raises:



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# File 'lib/rex/compat.rb', line 259

def self.temp_copy(path)
	raise RuntimeError,"missing Tempfile" if not @@loaded_tempfile
	fd = File.open(path, "rb")
	tp = Tempfile.new("msftemp")
	tp.binmode
	tp.write(fd.read(File.size(path)))
	tp.close
	fd.close
	tp
end

.temp_delete(tp) ⇒ Object

Delete an opened temporary file

Raises:



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# File 'lib/rex/compat.rb', line 274

def self.temp_delete(tp)
	raise RuntimeError,"missing FileUtils" if not @@loaded_fileutils
	begin
		FileUtils.rm(tp.path)
	rescue
	end
end

.win32_ruby_path ⇒ Object

Obtain the path to our interpreter



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# File 'lib/rex/compat.rb', line 204

def self.win32_ruby_path
	return nil if ! (is_windows and @@loaded_win32api)
	gmh = Win32API.new("kernel32", "GetModuleHandle", ["P"], "L")
	gmf = Win32API.new("kernel32", "GetModuleFileName", ["LPL"], "L")
	mod = gmh.call(nil)
	inf = "\x00" * 1024
	gmf.call(mod, inf, 1024)
	inf.unpack("Z*")[0]
end

.win32_winexec(cmd) ⇒ Object

Call WinExec (equiv to system(“cmd &”))



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# File 'lib/rex/compat.rb', line 217

def self.win32_winexec(cmd)
	return nil if ! (is_windows and @@loaded_win32api)
	exe = Win32API.new("kernel32", "WinExec", ["PL"], "L")
	exe.call(cmd, 0)
end