Module: OmniauthOpenidFederation::Tasks::ClientKeysPreparer

Defined in:
lib/omniauth_openid_federation/tasks/client_keys_preparer.rb

Class Method Summary collapse

Class Method Details

.generate_separate_keys(output_path) ⇒ Object 



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# File 'lib/omniauth_openid_federation/tasks/client_keys_preparer.rb', line 57

def self.generate_separate_keys(output_path)
  signing_private_key = OpenSSL::PKey::RSA.new(2048)
  encryption_private_key = OpenSSL::PKey::RSA.new(2048)

  signing_jwk_hash = Utils.rsa_key_to_jwk(signing_private_key, use: "sig")
  encryption_jwk_hash = Utils.rsa_key_to_jwk(encryption_private_key, use: "enc")

  # Remove private key components and add 'use' field
  signing_public_jwk = signing_jwk_hash.reject { |k, _v| %w[d p q dp dq qi].include?(k.to_s) }.merge("use" => "sig")
  encryption_public_jwk = encryption_jwk_hash.reject { |k, _v| %w[d p q dp dq qi].include?(k.to_s) }.merge("use" => "enc")

  jwks = {keys: [signing_public_jwk, encryption_public_jwk]}

  # Save private keys
  signing_key_path = File.join(output_path, "client-signing-private-key.pem")
  encryption_key_path = File.join(output_path, "client-encryption-private-key.pem")

  File.write(signing_key_path, signing_private_key.to_pem)
  File.write(encryption_key_path, encryption_private_key.to_pem)
  File.chmod(0o600, signing_key_path)
  File.chmod(0o600, encryption_key_path)

  # Save public JWKS
  public_jwks_path = File.join(output_path, "client-jwks.json")
  File.write(public_jwks_path, JSON.pretty_generate(jwks))

  {
    signing_key_path: signing_key_path,
    encryption_key_path: encryption_key_path,
    public_jwks_path: public_jwks_path,
    jwks: jwks
  }
end

.generate_single_key(output_path) ⇒ Object 



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# File 'lib/omniauth_openid_federation/tasks/client_keys_preparer.rb', line 33

def self.generate_single_key(output_path)
  private_key = OpenSSL::PKey::RSA.new(2048)
  jwk_hash = Utils.rsa_key_to_jwk(private_key, use: "sig")

  # Remove private key components and 'use' field for backward compatibility
  public_jwk = jwk_hash.reject { |k, _v| %w[d p q dp dq qi use].include?(k.to_s) }
  jwks = {keys: [public_jwk]}

  # Save private key
  private_key_path = File.join(output_path, "client-private-key.pem")
  File.write(private_key_path, private_key.to_pem)
  File.chmod(0o600, private_key_path)

  # Save public JWKS
  public_jwks_path = File.join(output_path, "client-jwks.json")
  File.write(public_jwks_path, JSON.pretty_generate(jwks))

  {
    private_key_path: private_key_path,
    public_jwks_path: public_jwks_path,
    jwks: jwks
  }
end

.prepare(key_type:, output_dir:) ⇒ Object 



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# File 'lib/omniauth_openid_federation/tasks/client_keys_preparer.rb', line 10

def self.prepare(key_type:, output_dir:)
  unless %w[single separate].include?(key_type)
    raise ArgumentError, "Invalid key_type: #{key_type}. Valid options: 'single' or 'separate'"
  end

  output_path = PathResolver.resolve(output_dir)

  # Create output directory if it doesn't exist
  FileUtils.mkdir_p(output_path) unless File.directory?(output_path)

  result = if key_type == "single"
    generate_single_key(output_path)
  else
    generate_separate_keys(output_path)
  end

  {
    success: true,
    output_path: output_path,
    **result
  }
end