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require 'mail/gpg/verified_part'
module Mail
module Gpg
class InlineSignedMessage < Mail::Message
def self.setup(signed_mail, options = {})
if signed_mail.multipart?
self.new do
global_verify_result = []
signed_mail.header.fields.each do |field|
header[field.name] = field.value
end
signed_mail.parts.each do |part|
if Mail::Gpg.signed_inline?(part)
signed_text = part.body.to_s
success, vr = GpgmeHelper.inline_verify(signed_text, options)
p = VerifiedPart.new(part)
if success
p.body self.class.strip_inline_signature signed_text
end
p.verify_result vr
global_verify_result << vr
add_part p
else
add_part part
end
end
verify_result global_verify_result
end # of multipart
else
self.new do
signed_mail.header.fields.each do |field|
header[field.name] = field.value
end
signed_text = signed_mail.body.to_s
success, vr = GpgmeHelper.inline_verify(signed_text, options)
if success
body self.class.strip_inline_signature signed_text
else
body signed_text
end
verify_result vr
end
end
end
END_SIGNED_TEXT = '-----END PGP SIGNED MESSAGE-----'
END_SIGNED_TEXT_RE = /^#{END_SIGNED_TEXT}\s*$/
INLINE_SIG_RE = Regexp.new('^-----BEGIN PGP SIGNATURE-----\s*$.*^-----END PGP SIGNATURE-----\s*$', Regexp::MULTILINE)
BEGIN_SIG_RE = /^(-----BEGIN PGP SIGNATURE-----)\s*$/
# utility method to remove inline signature and related pgp markers
def self.strip_inline_signature(signed_text)
if signed_text =~ INLINE_SIG_RE
signed_text = signed_text.dup
if signed_text !~ END_SIGNED_TEXT_RE
# insert the 'end of signed text' marker in case it is missing
signed_text = signed_text.gsub BEGIN_SIG_RE, "-----END PGP SIGNED MESSAGE-----\n\\1"
end
signed_text.gsub! INLINE_SIG_RE, ''
signed_text.strip!
end
# Strip possible inline-"headers" (e.g. "Hash: SHA256", or "Comment: something").
signed_text.gsub(/(.*^-----BEGIN PGP SIGNED MESSAGE-----\n)(.*?)^$(.+)/m, '\1\3')
end
end
end
end
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