Class: PandaPal::LtiV1P3Controller

Inherits:
PandaPalController show all
Defined in:
app/controllers/panda_pal/lti_v1_p3_controller.rb

Instance Method Summary collapse

Methods inherited from PandaPalController

#share_controller_on_thread

Instance Method Details



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# File 'app/controllers/panda_pal/lti_v1_p3_controller.rb', line 57

def deep_link_request
  message_type = @decoded_lti_jwt[LtiConstants::Claims::MESSAGE_TYPE]

  unless message_type == LtiConstants::MessageTypes::DEEP_LINKING_REQUEST
    render plain: 'Not a Deep Linking request', status: :bad_request
    return
  end

  # Store deep linking session data
  current_session.data.merge!({
    lti_version: 'v1p3',
    lti_launch_placement: 'deep_linking',
    launch_url_params: request.query_parameters.to_h,
    launch_params: @decoded_lti_jwt,
    deep_link_return_url: @decoded_lti_jwt[LtiConstants::DeepLinking::DEEP_LINKING_SETTINGS][LtiConstants::DeepLinkingSettings::DEEP_LINK_RETURN_URL],
    deep_link_data: @decoded_lti_jwt[LtiConstants::DeepLinking::DATA]
  })

  redirect_url = LaunchUrlHelpers.deep_link_redirect_url(request)
  if redirect_url
    redirect_with_session_to(redirect_url, route_context: main_app)
  else
    render plain: 'Deep linking redirect URL not configured. Please configure deep_link_redirect_url in your placement or global LTI options.', status: :internal_server_error
  end
end

#login ⇒ Object 



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# File 'app/controllers/panda_pal/lti_v1_p3_controller.rb', line 15

def 
  @current_lti_platform = PandaPal::Platform.resolve_platform(params)

  start_panda_session!

  current_session[:lti_platform] = @current_lti_platform&.serialize
  current_session[:lti_oauth_nonce] = SecureRandom.uuid
  current_session[:canvas_environment] = params['canvas_environment']
  current_session[:canvas_region] = params['canvas_region']
  current_session.panda_pal_organization_id = 0

  @form_action = current_lti_platform.authentication_redirect_url
  @method = :post
  @form_data = {
    scope: 'openid',
    response_type: 'id_token',
    response_mode: 'form_post',
    prompt: 'none',
    redirect_uri: params[:target_link_uri] || v1p3_resource_link_request_url,
    client_id: params.require(:client_id),
    login_hint: params.require(:login_hint),
    lti_message_hint: params.require(:lti_message_hint),
    state: current_session.session_key,
    nonce: current_session[:lti_oauth_nonce]
  }
end

#public_jwks ⇒ Object 



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# File 'app/controllers/panda_pal/lti_v1_p3_controller.rb', line 126

def public_jwks
  render json: {
    keys: [JWT::JWK.new(PandaPal.lti_private_key).export]
  }
end

#resource_link_request ⇒ Object 



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# File 'app/controllers/panda_pal/lti_v1_p3_controller.rb', line 42

def resource_link_request
  ltype = @decoded_lti_jwt[LtiConstants::Canvas::PLACEMENT] || @decoded_lti_jwt[LtiConstants::Claims::CUSTOM]&.dig("launch_type")

  if ltype
    current_session.data.merge!({
      lti_version: 'v1p3',
      lti_launch_placement: ltype,
      launch_url_params: request.query_parameters.to_h,
      launch_params: @decoded_lti_jwt,
    })

    redirect_with_session_to(:"#{LaunchUrlHelpers.launch_route(ltype)}_url", route_context: main_app)
  end
end

#tool_config ⇒ Object 



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# File 'app/controllers/panda_pal/lti_v1_p3_controller.rb', line 83

def tool_config
  if PandaPal.lti_environments.empty?
    render plain: 'Domains must be set in lti_environments'
    return
  end

  platform = PandaPal.lti_options.delete(:platform) || 'canvas.instructure.com'
  request_url = "#{request.scheme}://#{request.host_with_port}"
  parsed_request_url = URI.parse(request_url)

  mapped_placements = PandaPal.lti_paths.map do |k, opts|
    opts = LaunchUrlHelpers.normalize_lti_launch_desc(opts)
    opts.merge!({
      placement: k,
      target_link_uri: LaunchUrlHelpers.absolute_launch_url(
        k.to_sym,
        host: parsed_request_url,
        default_auto_launch: true
      ),
    })
    opts
  end

  config_json = {
    title: PandaPal.lti_options[:title],
    scopes: [],
    public_jwk_url: v1p3_public_jwks_url,
    description: PandaPal.lti_options[:description] || 'PandaPal LTI',
    target_link_uri: v1p3_resource_link_request_url, #app_url(:resource_link_request, request),
    oidc_initiation_url: ,
    extensions: [{
      platform: platform,
      privacy_level: "public",
      settings: {
        placements: mapped_placements,
      },
    }],
    custom_fields: PandaPal.lti_custom_params, # PandaPal.lti_options[:custom_fields],
  }

  render json: config_json
end