passing params to the launcher gem

Gemfile

@@ -47,6 +47,7 @@ gem 'bcrypt', '~> 3.1.7'
 gem 'omniauth'
 gem 'omniauth-twitter'
 gem 'omniauth-google-oauth2'
+gem "omniauth-bn-launcher", git: "https://github.com/blindsidenetworks/omniauth-bn-launcher.git"
 
 # BigBlueButton API wrapper.
 gem 'bigbluebutton-api-ruby'
@@ -64,7 +65,6 @@ gem 'rubocop', require: false
 group :production do
   # Use a postgres database in production.
   gem 'pg', '~> 0.18'
-  gem "omniauth-bn-launcher", git: "https://github.com/blindsidenetworks/omniauth-bn-launcher.git"
 end
 
 group :development, :test do

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/blindsidenetworks/omniauth-bn-launcher.git
-  revision: c272a928c41966ec3f43d841e372838be0465a8d
+  revision: 6b79f38114a1c9e2dde4958ad5a4f02443c9c023
   specs:
     omniauth-bn-launcher (0.1.0)
       omniauth (~> 1.3, >= 1.3.2)

app/controllers/main_controller.rb

@@ -5,9 +5,6 @@ class MainController < ApplicationController
 
   # GET /
   def index
-    if Rails.env.production? && !current_user
-      redirect_to "#{Rails.configuration.relative_url_root}/auth/bn_launcher"
-    end
   end
 
   private

app/helpers/sessions_helper.rb

@@ -22,4 +22,15 @@ module SessionsHelper
   def current_user
     @current_user ||= User.find_by(id: session[:user_id])
   end
+
+  def parse_customer_name(hostname)
+    provider = hostname.split('.')
+    provider.first == 'www' ? provider.second : provider.first
+  end
+
+  def set_omniauth_options(env)
+    env['omniauth.strategy'].options[:customer] = parse_customer_name env["SERVER_NAME"]
+    env['omniauth.strategy'].options[:gl_redirect_url] = env["rack.url_scheme"] + "://" + env["SERVER_NAME"] + ":" + env["SERVER_PORT"]
+    env['omniauth.strategy'].options[:default_callback_url] = Rails.configuration.gl_callback_url
+  end
 end

app/views/shared/_header.html.erb

@@ -44,7 +44,11 @@
 						</div>
 					</div>
 				<% else %>
-					<%= link_to "Login", "#loginModal", :class => "btn btn-pill btn-outline-primary mx-2", "data-toggle": "modal" %>
+          <% if  Rails.configuration.omniauth_bn_launcher && !current_user %>
+            <%= link_to "Login", "#{Rails.configuration.relative_url_root}/auth/bn_launcher", :class => "btn btn-pill btn-outline-primary mx-2" %>
+          <% else %>
+            <%= link_to "Login", "#loginModal", :class => "btn btn-pill btn-outline-primary mx-2", "data-toggle": "modal" %>
+          <% end %>
 
 					<% if allow_user_signup? %>
 						<%= link_to "Signup", signup_path, :class => "btn btn-pill btn-outline-primary mx-2" %>

bin/start

@@ -1,9 +1,11 @@
 #!/bin/bash
-while [ "$RAILS_ENV" = "production" ] && ! curl http://$DB_HOST:5432/ 2>&1 | grep '52'
-do
-  echo "Waiting for postgres to start up ..."
-  sleep 1
-done
+if [ "$RAILS_ENV" = "production" ]; then
+    while ! curl http://$DB_HOST:${DB_PORT:-5432}/ 2>&1 | grep '52'
+    do
+      echo "Waiting for postgres to start up ..."
+      sleep 1
+    done
+fi
 
 bundle exec rake db:create
 bundle exec rake db:migrate

config/application.rb

@@ -18,7 +18,8 @@ module Greenlight
     config.exceptions_app = routes
 
     config.loadbalanced_configuration = ENV["LOADBALANCER_ENDPOINT"].present? && ENV["LOADBALANCER_SECRET"].present?
-
+    # The default callback url that bn launcher will redirect to
+    config.gl_callback_url = ENV["GL_CALLBACK_URL"]
     # Setup BigBlueButton configuration.
     if config.loadbalanced_configuration
       # Fetch credentials from a loadbalancer based on provider.

config/environments/production.rb

@@ -73,6 +73,9 @@ Rails.application.configure do
   # Use default logging formatter so that PID and timestamp are not suppressed.
   config.log_formatter = ::Logger::Formatter.new
 
+  # rails runs over http in production. Turning OpenSSL verify off to skip oauth2 verification of certs. This is done on nginx level
+  OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE
+
   # Use a different logger for distributed setups.
   # require 'syslog/logger'
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')

config/initializers/omniauth.rb

@@ -6,17 +6,28 @@ Rails.application.config.providers = [:google, :twitter, :bn_launcher]
 # Set which providers are configured.
 Rails.application.config.omniauth_google = ENV['GOOGLE_OAUTH2_ID'].present? && ENV['GOOGLE_OAUTH2_SECRET'].present?
 Rails.application.config.omniauth_twitter = ENV['TWITTER_ID'].present? && ENV['TWITTER_SECRET'].present?
-Rails.application.config.omniauth_bn_launcher = (ENV["USE_LOADBALANCED_CONFIGURATION"] == "true")
+Rails.application.config.omniauth_bn_launcher = Rails.configuration.loadbalanced_configuration
+Rails.application.config.omniauth_bn_launcher = ENV["LOADBALANCER_ENDPOINT"].present? && ENV["LOADBALANCER_SECRET"].present?
+
+SETUP_PROC = lambda do |env|
+  SessionsController.helpers.set_omniauth_options env
+end
+
 
 # Setup the Omniauth middleware.
 Rails.application.config.middleware.use OmniAuth::Builder do
-  if Rails.env.production?
+  if Rails.configuration.omniauth_bn_launcher
     provider :bn_launcher,
              client_id: ENV['CLIENT_ID'],
              client_secret: ENV['CLIENT_SECRET'],
-             client_options: {site: ENV['BN_LAUNCHER_REDIRECT_URI']}
+             client_options: {site: ENV['BN_LAUNCHER_REDIRECT_URI']},
+             :setup => SETUP_PROC
   end
-
+  # provider :bn_launcher,
+  #          client_id: '123',
+  #          client_secret: '456',
+  #          client_options: {site: "http://demo.gl.greenlight.com:3000"},
+  #          :setup => SETUP_PROC
 
   provider :twitter, ENV['TWITTER_ID'], ENV['TWITTER_SECRET']