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module Mail
module Gpg
class EncryptedPart < Mail::Part
CONTENT_TYPE = 'application/octet-stream'
# options are:
#
# :signers : sign using this key (give the corresponding email address)
# :password: passphrase for the signing key
# :recipients : array of receiver addresses
# :keys : A hash mapping recipient email addresses to public keys or public
# key ids. Imports any keys given here that are not already part of the
# local keychain before sending the mail. If this option is given, strictly
# only the key material from this hash is used, ignoring any keys for
# recipients that might have been added to the local key chain but are
# not mentioned here.
# :always_trust : send encrypted mail to untrusted receivers, true by default
# :filename : define a custom name for the encrypted file attachment
def initialize(cleartext_mail, options = {})
options = { always_trust: true }.merge options
encrypted = GpgmeHelper.encrypt(cleartext_mail.encoded, options)
super() do
body encrypted.to_s
filename = options[:filename] || 'encrypted.asc'
content_type "#{CONTENT_TYPE}; name=\"#{filename}\""
content_disposition "inline; filename=\"#{filename}\""
content_description 'OpenPGP encrypted message'
end
end
end
end
end
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