Class: CASServer::Authenticators::Google

Inherits:
Base
  • Object
show all
Defined in:
lib/casserver/authenticators/google.rb

Overview

Validates Google accounts against Google’s authentication service – in other words, this authenticator allows users to log in to CAS using their Gmail/Google accounts.

Instance Attribute Summary

Attributes inherited from Base

#options, #username

Instance Method Summary collapse

Methods inherited from Base

#configure, #extra_attributes, setup

Instance Method Details

#validate(credentials) ⇒ Object 



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# File 'lib/casserver/authenticators/google.rb', line 11

def validate(credentials)
  read_standard_credentials(credentials)

  return false if @username.blank? || @password.blank?

  auth_data = {
    'Email'   => @username,
    'Passwd'  => @password,
    'service' => 'xapi',
    'source'  => 'RubyCAS-Server',
    'accountType' => 'HOSTED_OR_GOOGLE'
  }

  url = URI.parse('https://www.google.com/accounts/ClientLogin')
  if @options[:proxy]
    http = Net::HTTP.Proxy(@options[:proxy][:host], @options[:proxy][:port], @options[:proxy][:username], @options[:proxy][:password]).new(url.host, url.port)
  else
    http = Net::HTTP.new(url.host, url.port)
  end
  http.use_ssl = true

  # TODO: make the timeout configurable
  wait_seconds = 10
  begin
    timeout(wait_seconds) do
      res = http.start do |conn|
        req = Net::HTTP::Post.new(url.path)
        req.set_form_data(auth_data,'&')
        conn.request(req)
      end

      case res
      when Net::HTTPSuccess
        true
      when Net::HTTPForbidden
        false
      else
        $LOG.error("Unexpected response from Google while validating credentials: #{res.inspect} ==> #{res.body}.")
        raise CASServer::AuthenticatorError, "Unexpected response received from Google while validating credentials."
      end
    end
  rescue Timeout::Error
    $LOG.error("Google did not respond to the credential validation request. We waited for #{wait_seconds.inspect} seconds before giving up.")
    raise CASServer::AuthenticatorError, "Timeout while waiting for Google to validate credentials."
  end

end