chore: Add down gem for Local file downloads (#2765)

- Add down gem to handle downloading files to host machine
- Remove the LocalResource class
- Introduce max limit for contact avatars send via SDK

lib/chatwoot_hub.rb

@@ -36,7 +36,7 @@ class ChatwootHub
       info = info.merge(instance_metrics) unless ENV['DISABLE_TELEMETRY']
       response = RestClient.post(PING_URL, info.to_json, { content_type: :json, accept: :json })
       version = JSON.parse(response)['version']
-    rescue *ExceptionList::REST_CLIENT_EXCEPTIONS, *ExceptionList::URI_EXCEPTIONS => e
+    rescue *ExceptionList::REST_CLIENT_EXCEPTIONS => e
       Rails.logger.info "Exception: #{e.message}"
     rescue StandardError => e
       Sentry.capture_exception(e)
@@ -47,7 +47,7 @@ class ChatwootHub
   def self.register_instance(company_name, owner_name, owner_email)
     info = { company_name: company_name, owner_name: owner_name, owner_email: owner_email, subscribed_to_mailers: true }
     RestClient.post(REGISTRATION_URL, info.merge(instance_config).to_json, { content_type: :json, accept: :json })
-  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS, *ExceptionList::URI_EXCEPTIONS => e
+  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS => e
     Rails.logger.info "Exception: #{e.message}"
   rescue StandardError => e
     Raven.capture_exception(e)
@@ -58,7 +58,7 @@ class ChatwootHub
 
     info = { event_name: event_name, event_data: event_data }
     RestClient.post(EVENTS_URL, info.merge(instance_config).to_json, { content_type: :json, accept: :json })
-  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS, *ExceptionList::URI_EXCEPTIONS => e
+  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS => e
     Rails.logger.info "Exception: #{e.message}"
   rescue StandardError => e
     Sentry.capture_exception(e)

lib/exception_list.rb

@@ -1,7 +1,7 @@
 module ExceptionList
-  URI_EXCEPTIONS = [Errno::ETIMEDOUT, Errno::ECONNREFUSED, URI::InvalidURIError, Net::OpenTimeout, SocketError].freeze
   REST_CLIENT_EXCEPTIONS = [RestClient::NotFound, RestClient::GatewayTimeout, RestClient::BadRequest,
-                            RestClient::MethodNotAllowed, RestClient::Forbidden, RestClient::InternalServerError, RestClient::PayloadTooLarge].freeze
+                            RestClient::MethodNotAllowed, RestClient::Forbidden, RestClient::InternalServerError,
+                            RestClient::PayloadTooLarge, SocketError].freeze
   SMTP_EXCEPTIONS = [
     Net::SMTPSyntaxError
   ].freeze

lib/local_resource.rb

@@ -1,43 +0,0 @@
-class LocalResource
-  attr_reader :uri
-
-  def initialize(uri, file_type = nil)
-    @uri = URI(uri)
-    @file_type = file_type
-  end
-
-  def file
-    @file ||= Tempfile.new(tmp_filename, tmp_folder, encoding: encoding).tap do |f|
-      io.rewind
-      f.write(io.read)
-      f.close
-    end
-    @file.open
-  end
-
-  def io
-    # TODO: should we use RestClient here too ?
-    @io ||= uri.open(read_timeout: 5)
-  end
-
-  def encoding
-    io.rewind
-    io.read.encoding
-  end
-
-  def find_file_type
-    @file_type ? @file_type.split('/').last : Pathname.new(uri.path).extname
-  end
-
-  def tmp_filename
-    [Time.now.to_i.to_s, find_file_type].join('.')
-  end
-
-  def tmp_folder
-    Rails.root.join('tmp')
-  end
-
-  def filename
-    File.basename(uri.path)
-  end
-end

lib/webhooks/trigger.rb

@@ -6,7 +6,7 @@ class Webhooks::Trigger
       headers: { content_type: :json, accept: :json },
       timeout: 5
     )
-  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS, *ExceptionList::URI_EXCEPTIONS => e
+  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS => e
     Rails.logger.info "Exception: invalid webhook url #{url} : #{e.message}"
   rescue StandardError => e
     Sentry.capture_exception(e)