Class: EaSSL::Certificate

Inherits:
Object
  • Object
show all
Defined in:
lib/eassl/certificate.rb

Overview

Author

Paul Nicholson ([email protected])

Co-Author

Adam Williams ([email protected])

Copyright

Copyright © 2006 WebPower Design

License

Distributes under the same terms as Ruby

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Certificate

Returns a new instance of Certificate.



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# File 'lib/eassl/certificate.rb', line 9

def initialize(options)
  @options = {
    :days_valid       => (365 * 5),
    :signing_request  => nil,               #required
    :ca_certificate   => nil,               #required
    :comment          => "Ruby/OpenSSL/EaSSL Generated Certificate",
    :type             => "server"
  }.update(options)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method) ⇒ Object

This method is used to intercept and pass-thru calls to openSSL methods and instance variables.



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# File 'lib/eassl/certificate.rb', line 70

def method_missing(method)
  ssl.send(method)
end

Class Method Details

.load(pem_file_path) ⇒ Object 



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# File 'lib/eassl/certificate.rb', line 74

def self.load(pem_file_path)
  new({}).load(File.read(pem_file_path))
end

Instance Method Details

#load(pem_string) ⇒ Object 



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# File 'lib/eassl/certificate.rb', line 78

def load(pem_string)
  begin
    @ssl = OpenSSL::X509::Certificate.new(pem_string)
  rescue
    raise "CertificateLoader: Error loading certificate"
  end
  self
end

#sha1_fingerprint ⇒ Object

Returns a SHA1 fingerprint of the certificate in the OpenSSL style



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# File 'lib/eassl/certificate.rb', line 64

def sha1_fingerprint
  Digest::SHA1.hexdigest(ssl.to_der).upcase.gsub(/(..)/, '\1:').chop
end

#sign(ca_key) ⇒ Object 



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# File 'lib/eassl/certificate.rb', line 55

def sign(ca_key)
  ssl.sign(ca_key.private_key, OpenSSL::Digest::SHA1.new)
end

#ssl ⇒ Object 



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# File 'lib/eassl/certificate.rb', line 19

def ssl
  unless @ssl
    @ssl = OpenSSL::X509::Certificate.new
    @ssl.not_before = Time.now
    @ssl.subject = @options[:signing_request].subject
    @ssl.issuer = @options[:ca_certificate]? @options[:ca_certificate].subject :  @ssl.subject
    @ssl.not_after = @ssl.not_before + @options[:days_valid] * 24 * 60 * 60
    @ssl.public_key = @options[:signing_request].public_key
    @ssl.serial = @options[:serial] || 2
    @ssl.version = 2 # X509v3

    ef = OpenSSL::X509::ExtensionFactory.new
    ef.subject_certificate = @ssl
    ef.issuer_certificate = @options[:ca_certificate]? @options[:ca_certificate].ssl : @ssl
    @ssl.extensions = [
      ef.create_extension("basicConstraints","CA:FALSE"),
      ef.create_extension("subjectKeyIdentifier", "hash"),

      ef.create_extension("nsComment", @options[:comment]),
    ]
    # this extension must be added separately, after the others.
    # presumably needs subjectKeyIdentifier to already be in place
    @ssl.add_extension(ef.create_extension("authorityKeyIdentifier", "keyid:always,issuer:always"))

    if @options[:type] == 'server'
      @ssl.add_extension(ef.create_extension("keyUsage", "digitalSignature,keyEncipherment"))
      @ssl.add_extension(ef.create_extension("extendedKeyUsage", "serverAuth"))
    end
    if @options[:type] == 'client'
      @ssl.add_extension(ef.create_extension("keyUsage", "nonRepudiation,digitalSignature,keyEncipherment"))
      @ssl.add_extension(ef.create_extension("extendedKeyUsage", "clientAuth,emailProtection"))
    end
  end
  @ssl
end

#to_pem ⇒ Object 



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# File 'lib/eassl/certificate.rb', line 59

def to_pem
  ssl.to_pem
end