class TNEF

Public Class Methods

convert(content, options={}) { |file| ... } click to toggle source

convert¶ ↑

Extract the content of a winmail.dat file and executes the given block for every single file in it

Parameters:

content => Content of the winmail.dat file

Options hash with this keys:
  :command
    Full path of the tnf binary to execute (defaults to 'tnf', so it has to be in the path)

Example:

content = File.new('winmail.dat').read
TNEF.convert(content, :command => '/opt/local/bin/tnef') do |temp_file|
  unpacked_content = temp_file.read
  unpacked_filename = File.basename(temp_file.path)

  File.open("/some/path/#{unpacked_filename}", 'w') do |new_file|
    new_file.write(unpacked_content)
  end
end

# File lib/tinnef.rb, line 26
def self.convert(content, options={}, &block)
  Dir.mktmpdir do |dir|
    file_names = extract(content, options.merge(:dir => dir))
    file_names.each do |file_name|
      File.open("#{dir}/#{file_name}", "r") do |file|
        yield(file)
      end
    end
  end
end

extract(content, options={}) click to toggle source

# File lib/tinnef.rb, line 37
def self.extract(content, options={})
  command = options[:command] || 'tnef'
  dir = options[:dir]

  IO.popen("#{command} -K -C #{dir}", "wb") do |f|
    f.write(content)
    f.close
    if $?.signaled?
      raise IOError, "tnef exited with signal #{$?.termsig}"
    end
    if $?.exited? && $?.exitstatus != 0
      raise IOError, "tnef exited with status #{$?.exitstatus}"
    end
  end

  Dir.new(dir).sort.delete_if { |file_name| File.directory?(file_name) }
end