Class: Googledriver::Authorizer

Inherits:
Object
  • Object
show all
Defined in:
lib/googledriver/authorizer.rb

Overview

Authorizes a user to Google Drive and generates access tokens.

Constant Summary collapse

SCOPE =

Authorization scope which only allows program to manipulate files it created.

'https://www.googleapis.com/auth/drive.file'.freeze
REDIRECT_URI =

Standard redirect uri for authorization.

'urn:ietf:wg:oauth:2.0:oob'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client_secrets_path) ⇒ Authorizer

Constructs a new Authorizer by reading client data from a file and creating a REST resource.



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# File 'lib/googledriver/authorizer.rb', line 25

def initialize(client_secrets_path)
  @client_secrets_path = client_secrets_path
  update_client_data
  create_refresh_resource
end

Instance Attribute Details

#access_token ⇒ Object (readonly)

The access token created during authorization which is needed to perform uploads to Google Drive.



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# File 'lib/googledriver/authorizer.rb', line 14

def access_token
  @access_token
end

#token_lifetime ⇒ Object (readonly)

The lifetime of an access token in seconds which dictates how often a token needs to be refreshed.



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# File 'lib/googledriver/authorizer.rb', line 18

def token_lifetime
  @token_lifetime
end

#token_tob ⇒ Object (readonly)

The time of birth of the current access token.



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# File 'lib/googledriver/authorizer.rb', line 21

def token_tob
  @token_tob
end

Instance Method Details

#create_refresh_token ⇒ Object

Generates an authorization url for the user in order to obtain an initial refresh token.



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# File 'lib/googledriver/authorizer.rb', line 33

def create_refresh_token
  client = OAuth2::Client.new(@client_id, @client_secret,
                              authorize_url: '/o/oauth2/auth',
                              token_url: '/o/oauth2/token',
                              site: 'https://accounts.google.com')
  url = client.auth_code.authorize_url(redirect_uri: REDIRECT_URI,
                                       scope: SCOPE, access_type: 'offline')
  puts "Open the following link and follow the onscreen instructions #{url}"
  code = gets
  token = client.auth_code.get_token(code, redirect_uri: REDIRECT_URI)
  @refresh_token = token.refresh_token
end

#refresh_access_token ⇒ Object

Refreshes the access token and updates resources appropriately.



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# File 'lib/googledriver/authorizer.rb', line 47

def refresh_access_token
  @token_tob = Time.now

  begin
    refresh = @refresh_manager.post(
      build_refresh_payload
    )
  rescue StandardError => error
    warn "#{error};  METHOD  #{__callee__};  RESOURCE  #{@refresh_manager}"
    retry
  end

  update_refresh_data(refresh)
end