Module: GoogleMaps::Geocoder

Defined in:
lib/google_maps/geocoder.rb,
lib/google_maps/geocoder/result.rb,
lib/google_maps/geocoder/location.rb

Defined Under Namespace

Classes: Location, Result

Constant Summary collapse

URI_DOMAIN = 
"maps.googleapis.com"
URI_BASE = 
"/maps/api/geocode/json"

Class Method Summary collapse

Class Method Details

.locate!(address, options = { }) ⇒ Object 



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# File 'lib/google_maps/geocoder.rb', line 18

def self.locate!(address, options = { })
  options = {
    :ssl     => false,
    :address => address,
    :sensor  => false
  }.merge(options)

  json = ActiveSupport::JSON.decode RestClient.get(url(options))
  Geocoder::Result.new(json)
rescue => e
  raise GeocodeFailed.new(address, e)
end

.uri_base_path(options = { }) ⇒ Object 



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# File 'lib/google_maps/geocoder.rb', line 55

def self.uri_base_path(options = { })
  protocol = options[:ssl] ? "https" : "http"
  "#{protocol}://#{URI_DOMAIN}#{URI_BASE}"
end

.url(options) ⇒ Object 



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# File 'lib/google_maps/geocoder.rb', line 31

def self.url(options)
  ssl      = options.delete(:ssl)
  # for enterprise account
  client   = options.delete(:client) || ::GoogleMaps.client
  key = options.delete(:key) || ::GoogleMaps.key  

  parameters = []
  options.each do |k, v|
    parameters << "#{k}=#{CGI.escape(v.to_s)}"
  end
  
  if ::GoogleMaps.enterprise_account? && client && key
    parameters << "client=#{CGI.escape(client)}"
    sign_str = "#{URI_BASE}?#{parameters.join('&')}"
    sha1 = OpenSSL::Digest::Digest.new('sha1')
    binary_key = Base64.decode64(key.tr('-_','+/'))
    binary_signature = OpenSSL::HMAC.digest(sha1, binary_key, sign_str)
    signature = Base64.encode64(binary_signature).tr('+/','-_').strip
    parameters << "signature=#{signature}"
  end
  
  "#{uri_base_path(:ssl => ssl)}?#{parameters.join('&')}"
end