Class: MrSmime::Signer

Inherits:
Object
  • Object
show all
Defined in:
lib/mr_smime/signer.rb

Instance Method Summary collapse

Constructor Details

#initialize(message) ⇒ Signer

Returns a new instance of Signer.



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# File 'lib/mr_smime/signer.rb', line 5

def initialize(message)
  @message = message
end

Instance Method Details

#sender_certificate ⇒ Object 



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# File 'lib/mr_smime/signer.rb', line 29

def sender_certificate
  sender_certificates.first
end

#sender_certificates ⇒ Object 



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# File 'lib/mr_smime/signer.rb', line 33

def sender_certificates
  @message.from.map do |email_address|
    Certificate.find email_address
  end
end

#signable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mr_smime/signer.rb', line 23

def signable?
  @message.from.length == 1 &&
    !sender_certificate.nil? &&
    sender_certificate.present?
end

#signed_data(data) ⇒ Object 



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# File 'lib/mr_smime/signer.rb', line 9

def signed_data(data)
  return data unless signable?

  OpenSSL::PKCS7.write_smime(
    OpenSSL::PKCS7.sign(
      sender_certificate.certificate,
      sender_certificate.private_key,
      data,
      sender_certificate.ca_bundles,
      OpenSSL::PKCS7::DETACHED
    )
  )
end