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module Msf::Util::EXE::OSX::App
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  include Msf::Util::EXE::Common
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  include Msf::Util::EXE::OSX::Common
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  def self.included(base)
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    base.extend(ClassMethods)
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  end
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  module ClassMethods
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    # Create an OSX .app bundle containing the Mach-O executable provided in +exe+
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    # to_osx_app
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    #  
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    # @param  opts [Hash] The options hash
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    # @option opts [Hash] :exe_name (random) the name of the macho exe file (never seen by the user)
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    # @option opts [Hash] :app_name (random) the name of the OSX app
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    # @option opts [Hash] :hidden (true) hide the app when it is running
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    # @option opts [Hash] :plist_extra ('') some extra data to shove inside the Info.plist file
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    # @return      [String] zip archive containing an OSX .app directory
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    def to_osx_app(exe, opts = {})
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      exe_name    = opts.fetch(:exe_name) { Rex::Text.rand_text_alpha(8) }
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      app_name    = opts.fetch(:app_name) { Rex::Text.rand_text_alpha(8) }
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      hidden      = opts.fetch(:hidden, true)
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      plist_extra = opts.fetch(:plist_extra, '')
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      app_name.chomp!(".app")
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      app_name += ".app"
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      visible_plist = if hidden
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        %Q|
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        <key>LSBackgroundOnly</key>
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        <string>1</string>
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        |
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      else
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        ''
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      end
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      info_plist = %Q|
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        <?xml version="1.0" encoding="UTF-8"?>
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  <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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  <plist version="1.0">
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  <dict>
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    <key>CFBundleExecutable</key>
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    <string>#{exe_name}</string>
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    <key>CFBundleIdentifier</key>
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    <string>com.#{exe_name}.app</string>
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    <key>CFBundleName</key>
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    <string>#{exe_name}</string>#{visible_plist}
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    <key>CFBundlePackageType</key>
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    <string>APPL</string>
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    #{plist_extra}
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  </dict>
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  </plist>
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      |
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      zip = Rex::Zip::Archive.new
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      zip.add_file("#{app_name}/", '')
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      zip.add_file("#{app_name}/Contents/", '')
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      zip.add_file("#{app_name}/Contents/Resources/", '')
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      zip.add_file("#{app_name}/Contents/MacOS/", '')
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      # Add the macho and mark it as executable
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      zip.add_file("#{app_name}/Contents/MacOS/#{exe_name}", exe).last.attrs = 0o777
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      zip.add_file("#{app_name}/Contents/Info.plist", info_plist)
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      zip.add_file("#{app_name}/Contents/PkgInfo", 'APPLaplt')
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      zip.pack
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    end
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  end
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  class << self
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    include ClassMethods
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  end
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end
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