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module CertificateAuthority
class SigningRequest
attr_accessor :distinguished_name
attr_accessor :key_material
attr_accessor :raw_body
attr_accessor :openssl_csr
attr_accessor :digest
attr_accessor :attributes
def initialize()
@attributes = []
end
# Fake attribute for convenience because adding
# alternative names on a CSR is remarkably non-trivial.
def subject_alternative_names=(alt_names)
raise "alt_names must be an Array" unless alt_names.is_a?(Array)
factory = OpenSSL::X509::ExtensionFactory.new
name_list = alt_names.map{|m| "DNS:#{m}"}.join(",")
ext = factory.create_ext("subjectAltName",name_list,false)
ext_set = OpenSSL::ASN1::Set([OpenSSL::ASN1::Sequence([ext])])
attr = OpenSSL::X509::Attribute.new("extReq", ext_set)
@attributes << attr
end
def read_attributes_by_oid(*oids)
attributes.detect { |a| oids.include?(a.oid) }
end
protected :read_attributes_by_oid
def to_cert
cert = Certificate.new
if !@distinguished_name.nil?
cert.distinguished_name = @distinguished_name
end
cert.key_material = @key_material
if attribute = read_attributes_by_oid('extReq', 'msExtReq')
set = OpenSSL::ASN1.decode(attribute.value)
seq = set.value.first
seq.value.collect { |asn1ext| OpenSSL::X509::Extension.new(asn1ext).to_a }.each do |o, v, c|
Certificate::EXTENSIONS.each do |klass|
cert.extensions[klass::OPENSSL_IDENTIFIER] = klass.parse(v, c) if v && klass::OPENSSL_IDENTIFIER == o
end
end
end
cert
end
def to_pem
to_x509_csr.to_pem
end
def to_x509_csr
raise "Must specify a DN/subject on csr" if @distinguished_name.nil?
raise "Invalid DN in request" unless @distinguished_name.valid?
raise "CSR must have key material" if @key_material.nil?
raise "CSR must include a public key on key material" if @key_material.public_key.nil?
raise "Need a private key on key material for CSR generation" if @key_material.private_key.nil?
opensslcsr = OpenSSL::X509::Request.new
opensslcsr.subject = @distinguished_name.to_x509_name
opensslcsr.public_key = @key_material.public_key
opensslcsr.attributes = @attributes unless @attributes.nil?
opensslcsr.sign @key_material.private_key, OpenSSL::Digest::Digest.new(@digest || "SHA512")
opensslcsr
end
def self.from_x509_csr(raw_csr)
csr = SigningRequest.new
openssl_csr = OpenSSL::X509::Request.new(raw_csr)
csr.distinguished_name = DistinguishedName.from_openssl openssl_csr.subject
csr.raw_body = raw_csr
csr.openssl_csr = openssl_csr
csr.attributes = openssl_csr.attributes
key_material = SigningRequestKeyMaterial.new
key_material.public_key = openssl_csr.public_key
csr.key_material = key_material
csr
end
def self.from_netscape_spkac(raw_spkac)
openssl_spkac = OpenSSL::Netscape::SPKI.new raw_spkac
csr = SigningRequest.new
csr.raw_body = raw_spkac
key_material = SigningRequestKeyMaterial.new
key_material.public_key = openssl_spkac.public_key
csr
end
end
end
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