chore: Add reauthorization prompt for Whatsapp Channel (#5929)

- Add reauthorization prompt for Whatsapp Channel

fixes: #5782

app/jobs/webhooks/whatsapp_events_job.rb

@@ -4,6 +4,7 @@ class Webhooks::WhatsappEventsJob < ApplicationJob
   def perform(params = {})
     channel = find_channel_from_whatsapp_business_payload(params) || find_channel(params)
     return if channel.blank?
+    return if channel.reauthorization_required?
 
     case channel.provider
     when 'whatsapp_cloud'

app/mailers/administrator_notifications/channel_notifications_mailer.rb

@@ -15,6 +15,14 @@ class AdministratorNotifications::ChannelNotificationsMailer < ApplicationMailer
     send_mail_with_liquid(to: admin_emails, subject: subject) and return
   end
 
+  def whatsapp_disconnect(inbox)
+    return unless smtp_config_set_or_development?
+
+    subject = 'Your Whatsapp connection has expired'
+    @action_url = "#{ENV.fetch('FRONTEND_URL', nil)}/app/accounts/#{Current.account.id}/settings/inboxes/#{inbox.id}"
+    send_mail_with_liquid(to: admin_emails, subject: subject) and return
+  end
+
   def email_disconnect(inbox)
     return unless smtp_config_set_or_development?
 

app/models/channel/whatsapp.rb

@@ -19,6 +19,7 @@
 
 class Channel::Whatsapp < ApplicationRecord
   include Channelable
+  include Reauthorizable
 
   self.table_name = 'channel_whatsapp'
   EDITABLE_ATTRS = [:phone_number, :provider, { provider_config: {} }].freeze

app/models/concerns/reauthorizable.rb

@@ -39,11 +39,14 @@ module Reauthorizable
   def prompt_reauthorization!
     ::Redis::Alfred.set(reauthorization_required_key, true)
 
-    if (is_a? Integrations::Hook) && slack?
-      AdministratorNotifications::ChannelNotificationsMailer.with(account: account).slack_disconnect.deliver_later
-    elsif is_a? Channel::FacebookPage
+    case self.class.name
+    when 'Integrations::Hook'
+      AdministratorNotifications::ChannelNotificationsMailer.with(account: account).slack_disconnect.deliver_later if slack?
+    when 'Channel::FacebookPage'
       AdministratorNotifications::ChannelNotificationsMailer.with(account: account).facebook_disconnect(inbox).deliver_later
-    elsif is_a? Channel::Email
+    when 'Channel::Whatsapp'
+      AdministratorNotifications::ChannelNotificationsMailer.with(account: account).whatsapp_disconnect(inbox).deliver_later
+    when 'Channel::Email'
       AdministratorNotifications::ChannelNotificationsMailer.with(account: account).email_disconnect(inbox).deliver_later
     end
   end

app/services/whatsapp/incoming_message_base_service.rb

@@ -96,9 +96,11 @@ class Whatsapp::IncomingMessageBaseService
     return if %w[text button interactive location].include?(message_type)
 
     attachment_payload = @processed_params[:messages].first[message_type.to_sym]
-    attachment_file = download_attachment_file(attachment_payload)
-
     @message.content ||= attachment_payload[:caption]
+
+    attachment_file = download_attachment_file(attachment_payload)
+    return if attachment_file.blank?
+
     @message.attachments.new(
       account_id: @message.account_id,
       file_type: file_content_type(message_type),

app/services/whatsapp/incoming_message_whatsapp_cloud_service.rb

@@ -10,6 +10,8 @@ class Whatsapp::IncomingMessageWhatsappCloudService < Whatsapp::IncomingMessageB
 
   def download_attachment_file(attachment_payload)
     url_response = HTTParty.get(inbox.channel.media_url(attachment_payload[:id]), headers: inbox.channel.api_headers)
-    Down.download(url_response.parsed_response['url'], headers: inbox.channel.api_headers)
+    # This url response will be failure if the access token has expired.
+    inbox.channel.authorization_error! if url_response.unauthorized?
+    Down.download(url_response.parsed_response['url'], headers: inbox.channel.api_headers) if url_response.success?
   end
 end

app/views/mailers/administrator_notifications/channel_notifications_mailer/whatsapp_disconnect.liquid

@@ -0,0 +1,8 @@
+<p>Hello,</p>
+
+<p>Your Whatsapp Access has expired. </p>
+<p>Please reconnect Whatsapp to continue receiving messages.</p>
+
+<p>
+Click <a href="{{action_url}}">here</a> to re-connect.
+</p>