chore: Handle exceptions on external URL calls (#1334)

lib/exception_list.rb

@@ -0,0 +1,4 @@
+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].freeze
+end

lib/webhooks/trigger.rb

@@ -1,7 +1,7 @@
 class Webhooks::Trigger
   def self.execute(url, payload)
     RestClient.post(url, payload.to_json, { content_type: :json, accept: :json })
-  rescue RestClient::NotFound, RestClient::GatewayTimeout, SocketError => e
+  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS, *ExceptionList::URI_EXCEPTIONS => e
     Rails.logger.info "Exception: invalid webhook url #{url} : #{e.message}"
   rescue StandardError => e
     Raven.capture_exception(e)