Module: Account::Oauth::OmniauthCallbacks::ControllerBase

Extended by:
ActiveSupport::Concern
Defined in:
app/controllers/concerns/account/oauth/omniauth_callbacks/controller_base.rb

Instance Method Summary collapse

Instance Method Details

#callback(class_name, team_id) ⇒ Object 



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# File 'app/controllers/concerns/account/oauth/omniauth_callbacks/controller_base.rb', line 13

def callback(class_name, team_id)
   = "Oauth::#{class_name}Account".constantize
  # oauth_accounts_collection = "oauth_#{class_name.underscore}_accounts".to_sym
  oauth_accounts_attribute = :"oauth_#{class_name.underscore}_account"
  integrations_installations_class = "::Integrations::#{class_name}Installation".constantize
  integrations_installations_collection = :"integrations_#{class_name.underscore}_installations"

  auth = request.env["omniauth.auth"]

  # if the user didn't click "authorize" on the providers confirmation page, just show them an error.
  if params[:denied]
    message = t("omniauth.team.denied", provider: t(auth.provider))

    # redirect them to either the integrations page or the registration page.
    path = if team_id
      [:account, team, integrations_installations_collection]
    elsif current_user
      [:account, current_user]
    else
      new_user_registration_path
    end

    redirect_to path, notice: message
  end

  # first, keep a record of the oauth account.
  # this belongs to the system, and sometimes becomes associated with a user.
  begin
     = .find_or_create_by(uid: auth.uid)
    .update_from_oauth(auth)
  rescue PG::UniqueViolation
    retry
  end

  # if they're trying to use this account to add an integration to a team.
  if team_id

    # they must be signed in.
    authenticate_user!

    unless (team = current_user.teams.find_by(id: team_id))
      raise "user is adding an integration to a team they don't belong to?"
    end

    # now we check whether they're able to install new integrations for this team.
    if can? :create, integrations_installations_class.new(:team => team, oauth_accounts_attribute => )

      # if the oauth account is already present for the team ..
      if team.send(integrations_installations_collection).find_by(oauth_accounts_attribute => )
        message = t("omniauth.team.already_present", provider: t(auth.provider))

      else
        # otherwise, create a new integration for this team.
        team.send(integrations_installations_collection).create(:name => .name, oauth_accounts_attribute => )
        message = t("omniauth.team.connected", provider: t(auth.provider))

      end

    else

      # if they don't have access to add integrations to the team, show them an error.
      message = t("omniauth.team.not_allowed", provider: t(auth.provider))

    end

    # in all of these situations, we take them back to the team's oauth accounts index page for this provider.
    redirect_to [:account, team, integrations_installations_collection], notice: message

  # if they're already signed in, they're trying to add it to their account.
  elsif current_user

    # if the account is already connected to a user, we can't connect it again.
    # this would potentially lock someone else out of their account.
    if .user
      message_key = (.user == current_user) ? "omniauth.user.reconnected" : "omniauth.user.already_registered"
      redirect_to (current_user), notice: t(message_key, provider: t(auth.provider))
    else
      .update(user: current_user)
      redirect_to (current_user), notice: t("omniauth.user.connected", provider: t(auth.provider))
    end

  # if they're not trying to add it to a team, they're trying to sign in or sign up.
  # if they're already associated with a user record, just sign them in.
  elsif .user

     .user
    handle_outstanding_invitation
    redirect_to 

  # if they're not associated with a user and they're allowed to sign up.
  elsif 

    # we're going to try to create a new user account.
    # if the oauth provider gave us an email address, use that, otherwise use a
    # temporary email placeholder. (we'll never show the temporary to the user.)
    # this has to be a "real" email address so we don't trip up any email validators.
    # however, this is secure because even if someone controlled `bullettrain.co`,
    # they would never be able to guess the hex code to reset the password.
    # even that is a rare edge case, because we force people to update this in onboarding.
    email = auth.info.email.present? ? auth.info.email : "noreply@#{SecureRandom.hex}.example.com"

    # if the user already exists with the email address on the account ..
    if User.find_by(email: email)

      # we can't sign them in, because they haven't added the oauth account to
      # their account yet for sign in. there is a potential security loophole
      # here if you allow them to do this at worst, and at best you're
      # depending on the security of the oauth provider to have verified the
      # email address on the account.
      redirect_to new_user_session_path(user: {email: email}, email_exists: true), notice: "Sorry, there is already a user registered with the email address #{email}, but this #{t(auth.provider)} account isn't configured for login with that account. Please sign in using your password and then add this account."

    else

      # if the user doesn't exist in the database yet, great!
      # let's create it and sign them in.
      password = Devise.friendly_token[0, 20]
      user = User.create(email: email, password: password, password_confirmation: password)

      .update(user: user)

       user
      handle_outstanding_invitation

      # if the user doesn't have a team at this point, create one.
      unless user.teams.any?
        user.create_default_team

        # if a user is signing up for the first time *and* creating their own team,
        # this is a ux shortcut that makes sense: automatically install their oauth account as an integration.
        user.teams.first.send(integrations_installations_collection).create(:name => .name, oauth_accounts_attribute => )
      end

      redirect_to 
    end

  else
    redirect_to new_user_session_path, notice: t("omniauth.user.account_not_found", provider: t(auth.provider))
  end
end

#failure ⇒ Object 



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# File 'app/controllers/concerns/account/oauth/omniauth_callbacks/controller_base.rb', line 8

def failure
  flash[:danger] = "Failed to sign in"
  redirect_to root_path
end

#team_id_from_env ⇒ Object 



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# File 'app/controllers/concerns/account/oauth/omniauth_callbacks/controller_base.rb', line 4

def team_id_from_env
  request.env.dig("omniauth.params", "team_id")&.to_i
end