# class Gem::Commands::CertCommand

### Public Class Methods

new ()
Source

    # File lib/rubygems/commands/cert_command.rb, line 7
    def initialize
      super "cert", "Manage RubyGems certificates and signing settings",
            add: [], remove: [], list: [], build: [], sign: []

      add_option("-a", "--add CERT",
                 "Add a trusted certificate.") do |cert_file, options|
        options[:add] << open_cert(cert_file)
      end

      add_option("-l", "--list [FILTER]",
                 "List trusted certificates where the",
                 "subject contains FILTER") do |filter, options|
        filter ||= ""

        options[:list] << filter
      end

      add_option("-r", "--remove FILTER",
                 "Remove trusted certificates where the",
                 "subject contains FILTER") do |filter, options|
        options[:remove] << filter
      end

      add_option("-b", "--build EMAIL_ADDR",
                 "Build private key and self-signed",
                 "certificate for EMAIL_ADDR") do |email_address, options|
        options[:build] << email_address
      end

      add_option("-C", "--certificate CERT",
                 "Signing certificate for --sign") do |cert_file, options|
        options[:issuer_cert] = open_cert(cert_file)
        options[:issuer_cert_file] = cert_file
      end

      add_option("-K", "--private-key KEY",
                 "Key for --sign or --build") do |key_file, options|
        options[:key] = open_private_key(key_file)
      end

      add_option("-A", "--key-algorithm ALGORITHM",
                 "Select which key algorithm to use for --build") do |algorithm, options|
        options[:key_algorithm] = algorithm
      end

      add_option("-s", "--sign CERT",
                 "Signs CERT with the key from -K",
                 "and the certificate from -C") do |cert_file, options|
        raise Gem::OptionParser::InvalidArgument, "#{cert_file}: does not exist" unless
          File.file? cert_file

        options[:sign] << cert_file
      end

      add_option("-d", "--days NUMBER_OF_DAYS",
                 "Days before the certificate expires") do |days, options|
        options[:expiration_length_days] = days.to_i
      end

      add_option("-R", "--re-sign",
                 "Re-signs the certificate from -C with the key from -K") do |resign, options|
        options[:resign] = resign
      end
    end

Calls superclass method `Gem::Command::new`

### Public Instance Methods

build (email)
Source

    # File lib/rubygems/commands/cert_command.rb, line 138
    def build(email)
      unless valid_email?(email)
        raise Gem::CommandLineError, "Invalid email address #{email}"
      end

      key, key_path = build_key
      cert_path = build_cert email, key

      say "Certificate: #{cert_path}"

      if key_path
        say "Private Key: #{key_path}"
        say "Don't forget to move the key file to somewhere private!"
      end
    end

certificates_matching (filter) { |certificate, path| ... }
Source

    # File lib/rubygems/commands/cert_command.rb, line 186
    def certificates_matching(filter)
      return enum_for __method__, filter unless block_given?

      Gem::Security.trusted_certificates.select do |certificate, _|
        subject = certificate.subject.to_s
        subject.downcase.index filter
      end.sort_by do |certificate, _|
        certificate.subject.to_a.map {|name, data,| [name, data] }
      end.each do |certificate, path|
        yield certificate, path
      end
    end

check_openssl ()
Source

    # File lib/rubygems/commands/cert_command.rb, line 78
    def check_openssl
      return if Gem::HAVE_OPENSSL

      alert_error "OpenSSL library is required for the cert command"
      terminate_interaction 1
    end

execute ()
Source

    # File lib/rubygems/commands/cert_command.rb, line 108
    def execute
      check_openssl

      options[:add].each do |certificate|
        add_certificate certificate
      end

      options[:remove].each do |filter|
        remove_certificates_matching filter
      end

      options[:list].each do |filter|
        list_certificates_matching filter
      end

      options[:build].each do |email|
        build email
      end

      if options[:resign]
        re_sign_cert(
          options[:issuer_cert],
          options[:issuer_cert_file],
          options[:key]
        )
      end

      sign_certificates unless options[:sign].empty?
    end

load_default_cert ()
Source

    # File lib/rubygems/commands/cert_command.rb, line 245
    def load_default_cert
      cert_file = File.join Gem.default_cert_path
      cert = File.read cert_file
      options[:issuer_cert] = OpenSSL::X509::Certificate.new cert
    rescue Errno::ENOENT
      alert_error \
        "--certificate not specified and ~/.gem/gem-public_cert.pem does not exist"

      terminate_interaction 1
    rescue OpenSSL::X509::CertificateError
      alert_error \
        "--certificate not specified and ~/.gem/gem-public_cert.pem is not valid"

      terminate_interaction 1
    end

load_default_key ()
Source

    # File lib/rubygems/commands/cert_command.rb, line 261
    def load_default_key
      key_file = File.join Gem.default_key_path
      key = File.read key_file
      passphrase = ENV["GEM_PRIVATE_KEY_PASSPHRASE"]
      options[:key] = OpenSSL::PKey.read key, passphrase
    rescue Errno::ENOENT
      alert_error \
        "--private-key not specified and ~/.gem/gem-private_key.pem does not exist"

      terminate_interaction 1
    rescue OpenSSL::PKey::PKeyError
      alert_error \
        "--private-key not specified and ~/.gem/gem-private_key.pem is not valid"

      terminate_interaction 1
    end

open_cert (certificate_file)
Source

    # File lib/rubygems/commands/cert_command.rb, line 85
    def open_cert(certificate_file)
      check_openssl
      OpenSSL::X509::Certificate.new File.read certificate_file
    rescue Errno::ENOENT
      raise Gem::OptionParser::InvalidArgument, "#{certificate_file}: does not exist"
    rescue OpenSSL::X509::CertificateError
      raise Gem::OptionParser::InvalidArgument,
        "#{certificate_file}: invalid X509 certificate"
    end

open_private_key (key_file)
Source

    # File lib/rubygems/commands/cert_command.rb, line 95
    def open_private_key(key_file)
      check_openssl
      passphrase = ENV["GEM_PRIVATE_KEY_PASSPHRASE"]
      key = OpenSSL::PKey.read File.read(key_file), passphrase
      raise Gem::OptionParser::InvalidArgument,
        "#{key_file}: private key not found" unless key.private?
      key
    rescue Errno::ENOENT
      raise Gem::OptionParser::InvalidArgument, "#{key_file}: does not exist"
    rescue OpenSSL::PKey::PKeyError, ArgumentError
      raise Gem::OptionParser::InvalidArgument, "#{key_file}: invalid RSA, DSA, or EC key"
    end

re_sign_cert (cert, cert_path, private_key)
Source

    # File lib/rubygems/commands/cert_command.rb, line 312
    def re_sign_cert(cert, cert_path, private_key)
      Gem::Security::Signer.re_sign_cert(cert, cert_path, private_key) do |expired_cert_path, new_expired_cert_path|
        alert("Your certificate #{expired_cert_path} has been re-signed")
        alert("Your expired certificate will be located at: #{new_expired_cert_path}")
      end
    end

sign (cert_file)
Source

    # File lib/rubygems/commands/cert_command.rb, line 290
    def sign(cert_file)
      cert = File.read cert_file
      cert = OpenSSL::X509::Certificate.new cert

      permissions = File.stat(cert_file).mode & 0o777

      issuer_cert = options[:issuer_cert]
      issuer_key = options[:key]

      cert = Gem::Security.sign cert, issuer_key, issuer_cert

      Gem::Security.write cert, cert_file, permissions
    end

### Private Instance Methods

valid_email? (email)
Source

    # File lib/rubygems/commands/cert_command.rb, line 321
    def valid_email?(email)
      # It's simple, but is all we need
      email =~ /\A.+@.+\z/
    end