metasploit-framework/msfupdate

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#!/usr/bin/env ruby
# -*- coding: binary -*-
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#
# $Id$
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#
# This keeps the framework up-to-date
#
# $Revision$
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#
msfbase = __FILE__
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while File.symlink?(msfbase)
msfbase = File.expand_path(File.readlink(msfbase), File.dirname(msfbase))
end
@orig_dir = Dir.pwd
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@msfbase_dir = File.dirname(msfbase)
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Dir.chdir(@msfbase_dir)
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def print_usage
puts <<-EOF
usage: msfupdate [--git-remote=<remote>] [--git-branch=<branch>] [--offline-file=<file>]
Options:
-h, --help show help
--git-remote REMOTE git remote to use (default upstream)
--git-branch BRANCH git branch to use (default master)
--offline-file FILE offline update file to use
EOF
end
require 'getoptlong'
opts = GetoptLong.new(
['--help', '-h', GetoptLong::NO_ARGUMENT],
['--git-remote', GetoptLong::REQUIRED_ARGUMENT],
['--git-branch', GetoptLong::REQUIRED_ARGUMENT],
['--offline-file', GetoptLong::REQUIRED_ARGUMENT],
)
begin
opts.each do |opt, arg|
case opt
when '--help'
print_usage
exit
when '--git-remote'
@git_remote = arg
when '--git-branch'
@git_branch = arg
when '--offline-file'
@offline_file = File.expand_file(arg, @orig_dir)
end
end
rescue GetoptLong::Error
$stderr.puts "#{$0}: try 'msfupdate --help' for more information"
exit 0x20
end
# Handle the old wait/nowait argument behavior
if ARGV[0] == 'wait' || ARGV[0] == 'nowait'
@actually_wait = (ARGV.shift == 'wait')
end
$stderr.puts "[*]"
$stderr.puts "[*] Attempting to update the Metasploit Framework..."
$stderr.puts "[*]"
$stderr.puts ""
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# Bail right away, no waiting around for consoles.
if not (Process.uid == 0 or File.stat(msfbase).owned?)
$stderr.puts "[-] ERROR: User running msfupdate does not own the Metasploit installation"
$stderr.puts "[-] Please run msfupdate as the same user who installed Metasploit."
exit 0x10
end
def is_apt
File.exists?(File.expand_path(File.join(@msfbase_dir, '.apt')))
end
# Are you an installer, or did you get here via a source checkout?
def is_installed
File.exists?(File.expand_path(File.join(@msfbase_dir, "..", "engine", "update.rb"))) && !is_apt
end
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def is_git
File.directory?(File.join(@msfbase_dir, ".git"))
end
# Adding an upstream enables msfupdate to pull updates from
# Rapid7's metasploit-framework repo instead of the repo
# the user originally cloned or forked.
def add_git_upstream
$stdout.puts "[*] Attempting to add remote 'upstream' to your local git repository."
system("git", "remote", "add", "upstream", "git://github.com/rapid7/metasploit-framework.git")
$stdout.puts "[*] Added remote 'upstream' to your local git repository."
end
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# This only exits if you actually pass a wait option, otherwise
# just returns nil. This is likely unexpected, revisit this.
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def maybe_wait_and_exit(exit_code=0)
if @actually_wait
$stdout.puts ""
$stdout.puts "[*] Please hit enter to exit"
$stdout.puts ""
$stdin.readline
exit exit_code
end
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end
def apt_upgrade_available(package)
require 'open3'
installed = nil
upgrade = nil
::Open3.popen3({'LANG'=>'en_US.UTF-8'}, "apt-cache", "policy", package) do |stdin, stdout, stderr|
stdout.each do |line|
installed = $1 if line =~ /Installed: ([\w\-+.:~]+)$/
upgrade = $1 if line =~ /Candidate: ([\w\-+.:~]+)$/
break if installed && upgrade
end
end
if installed && installed != upgrade
upgrade
else
nil
end
end
####### Since we're Git, do it all that way #######
if is_git
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$stdout.puts "[*] Checking for updates via git"
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$stdout.puts "[*] Note: Updating from bleeding edge"
out = `git remote show upstream` # Actually need the output for this one.
add_git_upstream unless $?.success? and out =~ %r{(https|git|git@github\.com):(//github\.com/)?(rapid7/metasploit-framework\.git)}
remote = @git_remote || "upstream"
branch = @git_branch || "master"
# This will save local changes in a stash, but won't
# attempt to reapply them. If the user wants them back
# they can always git stash pop them, and that presumes
# they know what they're doing when they're editing local
# checkout, which presumes they're not using msfupdate
# to begin with.
#
# Note, this requires at least user.name and user.email
# to be configured in the global git config. Installers should
# take care that this is done. TODO: Enforce this in msfupdate
committed = system("git", "diff", "--quiet", "HEAD")
if committed.nil?
$stderr.puts "[-] ERROR: Failed to run git"
$stderr.puts ""
$stderr.puts "[-] If you used a binary installer, make sure you run the symlink in"
$stderr.puts "[-] /usr/local/bin instead of running this file directly (e.g.: ./msfupdate)"
$stderr.puts "[-] to ensure a proper environment."
maybe_wait_and_exit 1
elsif not committed
system("git", "stash")
$stdout.puts "[*] Stashed local changes to avoid merge conflicts."
$stdout.puts "[*] Run `git stash pop` to reapply local changes."
end
system("git", "reset", "HEAD", "--hard")
system("git", "checkout", branch)
system("git", "fetch", remote)
system("git", "merge", "#{remote}/#{branch}")
$stdout.puts "[*] Updating gems..."
require 'bundler'
Bundler.with_clean_env do
system("bundle", "install")
end
end
if is_installed
update_script = File.expand_path(File.join(@msfbase_dir, "..", "engine", "update.rb"))
product_key = File.expand_path(File.join(@msfbase_dir, "..", "engine", "license", "product.key"))
if File.exists? product_key
if File.readable? product_key
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if (@offline_file)
system("ruby", update_script, @offline_file)
else
system("ruby", update_script)
end
else
$stdout.puts "[-] ERROR: Failed to update Metasploit installation"
$stdout.puts ""
$stdout.puts "[-] You must be able to read the product key for the"
$stdout.puts "[-] Metasploit installation in order to run msfupdate."
$stdout.puts "[-] Usually, this means you must be root (EUID 0)."
maybe_wait_and_exit 10
end
else
$stdout.puts "[-] ERROR: Failed to update Metasploit installation"
$stdout.puts ""
$stdout.puts "[-] In order to update your Metasploit installation,"
$stdout.puts "[-] you must first register it through the UI, here:"
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$stderr.puts "[-] https://localhost:3790"
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$stderr.puts "[-] (Note: Metasploit Community Edition is totally"
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$stderr.puts "[-] free and takes just a few seconds to register!)"
maybe_wait_and_exit 11
end
end
if is_apt
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# For more information, see here:
# https://community.rapid7.com/community/metasploit/blog/2013/01/17/metasploit-updates-and-msfupdate
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$stdout.puts "[*] Checking for updates via the APT repository"
$stdout.puts "[*] Note: expect weekly(ish) updates using this method"
system("apt-get", "-qq", "update")
packages = []
packages << 'metasploit-framework' if framework_version = apt_upgrade_available('metasploit-framework')
packages << 'metasploit' if pro_version = apt_upgrade_available('metasploit')
if packages.empty?
$stdout.puts "[*] No updates available"
else
$stdout.puts "[*] Updating to version #{pro_version || framework_version}"
system("apt-get", "install", "--assume-yes", *packages)
if packages.include?('metasploit')
start_cmd = File.expand_path(File.join(@msfbase_dir, '..', '..', '..', 'scripts', 'start.sh'))
system(start_cmd) if ::File.executable_real? start_cmd
end
end
end
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unless is_git || is_installed || is_apt
raise RuntimeError, "Cannot determine checkout type: `#{@msfbase_dir}'"
end
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maybe_wait_and_exit(0)