bigbluebutton / greenlight

# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/.

#

# Copyright (c) 2018 BigBlueButton Inc. and by respective authors (see below).

#

# This program is free software; you can redistribute it and/or modify it under the

# terms of the GNU Lesser General Public License as published by the Free Software

# Foundation; either version 3.0 of the License, or (at your option) any later

# version.

#

# BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY

# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A

# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

#

# You should have received a copy of the GNU Lesser General Public License along

# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.

require 'bbb_api'

module ApplicationHelper

  include MeetingsHelper

  include BbbApi

  # Gets all configured omniauth providers.

  def configured_providers

    Rails.configuration.providers.select do |provider|

      Rails.configuration.send("omniauth_#{provider}")

    end

  end

  # Determines which providers can show a login button in the login modal.

  def iconset_providers

    configured_providers & [:google, :twitter, :microsoft_office365]

  end

  # Generates the login URL for a specific provider.

  def omniauth_login_url(provider)

    "#{Rails.configuration.relative_url_root}/auth/#{provider}"

  end

  # Determine if Greenlight is configured to allow user signups.

  def allow_user_signup?

    Rails.configuration.allow_user_signup

  end

  # Determines if the BigBlueButton endpoint is the default.

  def bigbluebutton_endpoint_default?

    Rails.configuration.bigbluebutton_endpoint_default == Rails.configuration.bigbluebutton_endpoint

  end

  # Returns language selection options

  def language_options

    locales = I18n.available_locales

    language_opts = [['<<<< ' + t("language_default") + ' >>>>', "default"]]

    locales.each do |locale|

      language_name = t("language_name", locale: locale)

      language_name = locale.to_s if locale != :en && language_name == 'English'

      language_opts.push([language_name, locale.to_s])

    end

    language_opts.sort

  end

  # Parses markdown for rendering.

  def markdown(text)

    markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML,

      no_intra_emphasis: true,

      fenced_code_blocks: true,

      disable_indented_code_blocks: true,

      autolink: true,

      tables: true,

      underline: true,

      highlight: true)

    markdown.render(text).html_safe

  end

  def allow_greenlight_accounts?

    return Rails.configuration.allow_user_signup unless Rails.configuration.loadbalanced_configuration

    return false unless @user_domain && !@user_domain.empty? && Rails.configuration.allow_user_signup

    # No need to retrieve the provider info if the provider is whitelisted

    return true if launcher_allow_user_signup_whitelisted?(@user_domain)

    # Proceed with retrieving the provider info

    begin

      provider_info = retrieve_provider_info(@user_domain, 'api2', 'getUserGreenlightCredentials')

      provider_info['provider'] == 'greenlight'

    rescue => e

      logger.info e

      false

    end

  end

  # Return all the translations available in the client side through javascript

  def current_translations

    @translations ||= I18n.backend.send(:translations)

    @translations[I18n.locale].with_indifferent_access[:javascript] || {}

  end

  # Returns the page that the logo redirects to when clicked on