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2007-12-19

Multipart / pgp-mime with ruby and TMail

Ever wanted to create gpg-encrypted standard-conform multipart-mime messages with TMail ?

here is how it works

TMail – multipart/gpg-encrypted

def multipart_tmail_object(content,subject,recipient)
if content.kind_of?(File)
    filename = File.basename(content.path)
    body = content.readlines(filename)
  elsif content.kind_of?(String)
    filename = "msg.asc" 
    body = content
  else
    raise " has to be File or String" 
  end
end
puts " create the base mail-container " 
container = TMail::Mail.new
container.date = Time.now
container.subject = subject
container.to = recipient
container.set_content_type('mulitpart','encrypted',
                      'protocol' => "application/pgp-encrypted")
container.mime_version = '1.0'
container['User-Agent'] = "Pooble-GPGMailer" 
container.set_content_disposition('inline')
container.body = ""
puts " create another Mail-object  that holds gpg-attachment " 
gpg_container = TMail::Mail.new
gpg_container.body = "Version: 1\n" 
gpg_container.set_content_type('application','pgp-encrypted')
gpg_container.set_content_disposition('attachment')
container.parts.push(gpg_container)
puts  " finally create the gpg-attachment " 
att = TMail::Mail.new
att.body = body
att.set_content_type('application','octet-stream')
att.set_content_disposition('inline',
                      'filename' => filename)
container.parts.push(att)
return container

(repa)