Module: Fog::Google::Shared

Included in:
Compute::Google::Mock, Compute::Google::Real, DNS::Google::Mock, DNS::Google::Real, Monitoring::Mock, Monitoring::Real, Fog::Google::SQL::Mock, Fog::Google::SQL::Real
Defined in:
lib/fog/google.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#api_url ⇒ Object (readonly)

Returns the value of attribute api_url.



43
44
45
 
# File 'lib/fog/google.rb', line 43

def api_url
  @api_url
end

#api_version ⇒ Object (readonly)

Returns the value of attribute api_version.



43
44
45
 
# File 'lib/fog/google.rb', line 43

def api_version
  @api_version
end

#project ⇒ Object (readonly)

Returns the value of attribute project.



43
44
45
 
# File 'lib/fog/google.rb', line 43

def project
  @project
end

Instance Method Details

#build_excon_response(body, status = 200) ⇒ Excon::Response

Builds an Excon response

Parameters:

  • Response (Hash) —

    body

  • Response (Integer) —

    status

Returns:

  • (Excon::Response) —

    Excon response



202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
 
# File 'lib/fog/google.rb', line 202

def build_excon_response(body, status = 200)
  response = Excon::Response.new(:body => body, :status => status)
  if body && body.has_key?('error')
    msg = 'Google Cloud did not return an error message'

    if body['error'].kind_of?(Hash)
      response.status = body['error']['code']
      if body['error'].has_key?('errors')
        msg = body['error']['errors'].map{ |error| error['message'] }.join(', ')
      elsif body['error'].has_key?('message')
        msg = body['error']['message']
      end
    elsif body['error'].kind_of?(Array)
      msg = body['error'].map{ |error| error['code'] }.join(', ')
    end

    case response.status
      when 404
        raise Fog::Errors::NotFound.new(msg)
      else
        raise Fog::Errors::Error.new(msg)
    end
  end

  response
end

#create_signing_key(options) ⇒ Object

Creates a Google signing key



111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
 
# File 'lib/fog/google.rb', line 111

def create_signing_key(options)
  if options[:google_json_key_location] || options[:google_json_key_string]
    if options[:google_json_key_location]
      json_key_location = File.expand_path(options[:google_json_key_location])
      json_key = File.open(json_key_location, 'r') { |file| file.read }
    else
      json_key = options[:google_json_key_string]
    end

    json_key_hash = Fog::JSON.decode(json_key)
    unless json_key_hash.has_key?('client_email') || json_key_hash.has_key?('private_key')
      raise ArgumentError.new('Invalid Google JSON key')
    end

    options[:google_client_email] = json_key_hash['client_email']
    ::Google::APIClient::KeyUtils.load_from_pem(json_key_hash['private_key'], 'notasecret')
  elsif options[:google_key_location] || options[:google_key_string]
    if options[:google_key_location]
      google_key = File.expand_path(options[:google_key_location])
    else
      google_key = options[:google_key_string]
    end

    ::Google::APIClient::KeyUtils.load_from_pkcs12(google_key, 'notasecret')
  else
    raise ArgumentError.new('Missing required arguments: google_key_location, google_key_string, ' \
                            'google_json_key_location or google_json_key_string')
  end
end

#initialize_google_client(options) ⇒ Google::APIClient

Initializes the Google API Client

Parameters:

  • options (Hash) —

    Google API options

Options Hash (options):

  • :google_client_email (String) —

    A @developer.gserviceaccount.com email address to use

  • :google_key_location (String) —

    The location of a pkcs12 key file

  • :google_key_string (String) —

    The content of the pkcs12 key file

  • :google_json_key_location (String) —

    The location of a JSON key file

  • :google_json_key_string (String) —

    The content of the JSON key file

  • :google_api_scope_url (String) —

    The access scope URLs

  • :app_name (String) —

    The app name to set in the user agent

  • :app_version (String) —

    The app version to set in the user agent

  • :google_client (Google::APIClient) —

    Existing Google API Client

Returns:

  • (Google::APIClient) —

    Google API Client



73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
 
# File 'lib/fog/google.rb', line 73

def initialize_google_client(options)
  # NOTE: loaded here to avoid requiring this as a core Fog dependency
  begin
    require 'google/api_client'
  rescue LoadError => error
    Fog::Logger.warning('Please install the google-api-client gem before using this provider')
    raise error
  end

  # User can provide an existing Google API Client
  client = options[:google_client]
  return client unless client.nil?

  # Create a signing key
  signing_key = create_signing_key(options)

  # Validate required arguments
  unless options[:google_client_email]
    raise ArgumentError.new('Missing required arguments: google_client_email')
  end

  unless options[:google_api_scope_url]
    raise ArgumentError.new('Missing required arguments: google_api_scope_url')
  end

  # Create a new Google API Client
  self.new_pk12_google_client(
      options[:google_client_email],
      signing_key,
      options[:google_api_scope_url],
      options[:app_name],
      options[:app_version]
  )
end

#new_pk12_google_client(google_client_email, signing_key, google_api_scope_url, app_name = nil, app_version = nil) ⇒ Google::APIClient

Create a Google API Client with a user email and a pkcs12 key

Parameters:

  • google_client_email (String) —

    A @developer.gserviceaccount.com email address to use

  • signing_key (OpenSSL::PKey) —

    The private key for signing

  • google_api_scope_url (String) —

    Access scope URLs

  • app_name (String) (defaults to: nil) —

    The app name to set in the user agent

  • app_version (String) (defaults to: nil) —

    The app version to set in the user agent

Returns:

  • (Google::APIClient) —

    Google API Client



150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
 
# File 'lib/fog/google.rb', line 150

def new_pk12_google_client(google_client_email, signing_key, google_api_scope_url, app_name = nil, app_version = nil)
  application_name = app_name.nil? ? 'fog' : "#{app_name}/#{app_version || '0.0.0'} fog"
  api_client_options = {
      :application_name => application_name,
      :application_version => Fog::Google::VERSION,
  }
  client = ::Google::APIClient.new(api_client_options)

  client.authorization = Signet::OAuth2::Client.new(
      {
          :audience => 'https://accounts.google.com/o/oauth2/token',
          :auth_provider_x509_cert_url => 'https://www.googleapis.com/oauth2/v1/certs',
          :client_x509_cert_url => "https://www.googleapis.com/robot/v1/metadata/x509/#{google_client_email}",
          :issuer => google_client_email,
          :scope => google_api_scope_url,
          :signing_key => signing_key,
          :token_credential_uri => 'https://accounts.google.com/o/oauth2/token',
      }
  )
  client.authorization.fetch_access_token!

  client
end

#request(api_method, parameters, body_object = nil) ⇒ Excon::Response

Executes a request and wraps it in a result object

Parameters:

  • api_method (Google::APIClient::Method) —

    The method object or the RPC name of the method being executed

  • parameters (Hash) —

    The parameters to send to the method

  • body_object (Hash) (defaults to: nil) —

    The body object of the request

Returns:

  • (Excon::Response) —

    The result from the API



181
182
183
184
185
186
187
188
189
190
191
192
193
194
 
# File 'lib/fog/google.rb', line 181

def request(api_method, parameters, body_object = nil)
  client_parms = {
      :api_method => api_method,
      :parameters => parameters,
  }
  # The Google API complains when given null values for enums, so just don't pass it any null fields
  # XXX It may still balk if we have a nested object, e.g.:
  #   {:a_field => "string", :a_nested_field => { :an_empty_nested_field => nil } }
  client_parms[:body_object] = body_object.reject { |k, v| v.nil? } if body_object

  result = @client.execute(client_parms)

  build_excon_response(result.body.nil? || result.body.empty? ? nil : Fog::JSON.decode(result.body), result.status)
end

#shared_initialize(project, api_version, base_url) ⇒ void

This method returns an undefined value.

Initializes shared attributes

Parameters:

  • project (String) —

    Google Cloud Project

  • api_version (String) —

    Google API version

  • base_url (String) —

    Google API base url



52
53
54
55
56
 
# File 'lib/fog/google.rb', line 52

def shared_initialize(project, api_version, base_url)
  @project = project
  @api_version = api_version
  @api_url = base_url + api_version + '/projects/'
end