Gem::SpecificationPolicy#validate_lazy_metadata

# File tmp/rubies/ruby-3.1.3/lib/rubygems/specification_policy.rb, line 387
def validate_lazy_metadata
  unless @specification.authors.grep(LAZY_PATTERN).empty?
    error "#{LAZY} is not an author"
  end

  unless Array(@specification.email).grep(LAZY_PATTERN).empty?
    error "#{LAZY} is not an email"
  end

  if @specification.description =~ LAZY_PATTERN
    error "#{LAZY} is not a description"
  end

  if @specification.summary =~ LAZY_PATTERN
    error "#{LAZY} is not a summary"
  end

  homepage = @specification.homepage

  # Make sure a homepage is valid HTTP/HTTPS URI
  if homepage && !homepage.empty?
    require "uri"
    begin
      homepage_uri = URI.parse(homepage)
      unless [URI::HTTP, URI::HTTPS].member? homepage_uri.class
        error "\"#{homepage}\" is not a valid HTTP URI"
      end
    rescue URI::InvalidURIError
      error "\"#{homepage}\" is not a valid HTTP URI"
    end
  end
end