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'

require 'uri'

require 'i18n/language/mapping'

module ApplicationHelper

  include MeetingsHelper

  include BbbApi

  include I18n::Language::Mapping

  # 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

    providers = configured_providers & [:google, :twitter, :office365, :ldap]

    providers.delete(:twitter) if session[:old_twitter_user_id]

    providers

  end

  # Generates the login URL for a specific provider.

  def omniauth_login_url(provider)

    if provider == :ldap

      ldap_signin_path

    else

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

    end

  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_mapping = I18n::Language::Mapping.language_mapping_list[locale.to_s.gsub("_", "-")]

      language_opts.push([language_mapping["nativeName"], 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

    return false if @user_domain == "greenlight"

    # 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]

  end

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

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

  def home_page

    return root_path unless current_user

    return admins_path if current_user.has_role? :super_admin

    current_user.main_room

  end

  def role_colour(role)

    role.colour || Rails.configuration.primary_color_default

  end

  def translated_role_name(role)

    if role.name == "denied"

      I18n.t("roles.banned")

    elsif role.name == "pending"

      I18n.t("roles.pending")

    elsif role.name == "admin"

      I18n.t("roles.admin")

    elsif role.name == "user"

      I18n.t("roles.user")

    else

      role.name

    end

  end

  def can_reset_password

    # Check if admin is editting user and user is a greenlight account

    Rails.configuration.enable_email_verification &&

      Rails.application.routes.recognize_path(request.env['PATH_INFO'])[:action] == "edit_user" &&

      @user.greenlight_account?

  end

  def google_analytics_url

    "https://www.googletagmanager.com/gtag/js?id=#{ENV['GOOGLE_ANALYTICS_TRACKING_ID']}"

  end

  def valid_url?(input)

    uri = URI.parse(input)

    !uri.host.nil?

  rescue URI::InvalidURIError

    false

  end

end