Class: Rubino::API::Operations::OAuth::Providers::CallbackOperation

Inherits:
Object
  • Object
show all
Defined in:
lib/rubino/api/operations/oauth/providers/callback_operation.rb

Overview

POST /v1/oauth/providers/:id/callback

Client posts back code + state + code_verifier (plus expected_state it kept from connect). We constant-time-compare state, exchange the code, fetch account info, upsert by (provider, account_id) with encrypted tokens, and return the connection. Exchange outcomes bump oauth_token_exchanges_total ok|error.

Returns:

  • ([Integer, Hash]) —

    201 + serialized connection (tokens stripped).

Raises:

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(registry: ::Rubino::OAuth::Registry, repository: nil) ⇒ CallbackOperation

Accepts an alternate provider registry and connection repository for tests.



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# File 'lib/rubino/api/operations/oauth/providers/callback_operation.rb', line 26

def initialize(registry: ::Rubino::OAuth::Registry, repository: nil)
  @registry = registry
  @repository = repository
end

Class Method Details

.call(request) ⇒ Object 



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# File 'lib/rubino/api/operations/oauth/providers/callback_operation.rb', line 21

def self.call(request)
  new.call(request)
end

Instance Method Details

#call(request) ⇒ Object 



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# File 'lib/rubino/api/operations/oauth/providers/callback_operation.rb', line 31

def call(request)
  id = request.params.fetch("id")
  provider = @registry.fetch(id)
  attrs = request.validate!(Schemas::CallbackProvider)

  unless Rack::Utils.secure_compare(attrs[:state], attrs[:expected_state])
    raise ValidationError, "state mismatch"
  end

  token =
    begin
      provider.exchange_code(
        code: attrs[:code],
        redirect_uri: attrs[:redirect_uri],
        code_verifier: attrs[:code_verifier]
      )
    rescue StandardError => e
      ::Rubino::Metrics.counter(:oauth_token_exchanges_total,
                                provider: provider.id, outcome: "error").increment
      raise UpstreamError.new("token exchange failed: #{e.class.name}", service: provider.id)
    end

  ::Rubino::Metrics.counter(:oauth_token_exchanges_total,
                            provider: provider.id, outcome: "ok").increment

  info = provider.(token[:access_token])

  connection = repository.upsert(
    provider: provider.id,
    account_id: info[:account_id],
    account_email: info[:account_email],
    access_token: token[:access_token],
    refresh_token: token[:refresh_token],
    expires_at: token[:expires_at],
    scopes: token[:scopes],
    metadata: info[:metadata] || {}
  )

  [201, Serializer.call(connection)]
end