Class: CollavreSlack::SlackAuthController

Inherits:
ApplicationController show all
Defined in:
app/controllers/collavre_slack/slack_auth_controller.rb

Instance Method Summary collapse

Instance Method Details

#callback ⇒ Object 



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# File 'app/controllers/collavre_slack/slack_auth_controller.rb', line 19

def callback
  unless params[:code].present?
    render json: { error: I18n.t("collavre_slack.errors.missing_oauth_code") }, status: :unprocessable_entity
    return
  end

  # Verify and decode user_id from signed state (required - popup windows don't share session)
  unless params[:state].present?
    render json: { error: I18n.t("collavre_slack.errors.missing_oauth_state") }, status: :unprocessable_entity
    return
  end

  begin
    state_data = message_verifier.verify(params[:state]).with_indifferent_access
    Rails.logger.info("[SlackAuth] State data: #{state_data.inspect}")
    # Check expiration
    if state_data[:exp] && Time.at(state_data[:exp]) < Time.current
      render json: { error: I18n.t("collavre_slack.errors.invalid_oauth_state") }, status: :unprocessable_entity
      return
    end
    user = ::User.find(state_data[:user_id])
    Rails.logger.info("[SlackAuth] Verified user_id=#{user.id} from signed state")
  rescue ActiveSupport::MessageVerifier::InvalidSignature => e
    Rails.logger.warn("[SlackAuth] Invalid state signature: #{e.message}")
    render json: { error: I18n.t("collavre_slack.errors.invalid_oauth_state") }, status: :unprocessable_entity
    return
  rescue ActiveRecord::RecordNotFound
    Rails.logger.warn("[SlackAuth] User not found from state")
    render json: { error: I18n.t("collavre_slack.errors.user_not_found") }, status: :unprocessable_entity
    return
  end

  oauth_response = slack_client.oauth_access(code: params[:code], redirect_uri: slack_client.redirect_uri)
  if oauth_response[:ok] != true
    render json: { error: oauth_response[:error] || I18n.t("collavre_slack.errors.oauth_failed") }, status: :unprocessable_entity
    return
  end

  Rails.logger.info("[SlackAuth] OAuth response: team=#{oauth_response.dig(:team, :id)}, user=#{user&.id}")

   = SlackAccount.find_or_initialize_by(team_id: oauth_response.dig(:team, :id))
  .user ||= user
  .team_name = oauth_response.dig(:team, :name)
  .access_token = oauth_response[:access_token]
  .authed_user_id = oauth_response.dig(:authed_user, :id)
  .scopes = oauth_response[:scope]

  if .save
    # Render HTML that closes the popup and notifies the parent window
    render template: "collavre_slack/slack_auth/callback_success", layout: false
  else
    Rails.logger.error("[SlackAuth] Failed to save account: #{.errors.full_messages.join(', ')}")
    render json: { error: I18n.t("collavre_slack.errors.save_failed", errors: .errors.full_messages.join(", ")) }, status: :unprocessable_entity
  end
end

#start ⇒ Object 



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# File 'app/controllers/collavre_slack/slack_auth_controller.rb', line 5

def start
  unless Current.user
    render json: { error: I18n.t("collavre_slack.errors.authentication_required") }, status: :unauthorized
    return
  end

  # Sign the state with user_id to recover it securely in callback (popup windows don't share session)
  state_data = { nonce: SecureRandom.hex(16), user_id: Current.user.id, exp: 10.minutes.from_now.to_i }
  state = message_verifier.generate(state_data)
  session[:slack_oauth_state] = state

  redirect_to slack_client.oauth_authorize_url(state: state), allow_other_host: true
end