backend_sgx.rb

  1# frozen_string_literal: true
  2
  3require "blather"
  4require "blather/stanza/iq/command"
  5require "value_semantics/monkey_patched"
  6
  7require_relative "customer_fwd"
  8require_relative "not_loaded"
  9require_relative "form_to_h"
 10
 11class BackendSgx
 12	using FormToH
 13
 14	value_semantics do
 15		jid Blather::JID
 16		creds HashOf(Symbol => String)
 17		from_jid Blather::JID
 18		ogm_url Either(String, nil, NotLoaded)
 19		fwd Either(CustomerFwd, nil, NotLoaded)
 20		transcription_enabled Either(Bool(), NotLoaded)
 21		registered? Either(Blather::Stanza::Iq::IBR, FalseClass, NotLoaded)
 22	end
 23
 24	def register!(tel)
 25		iq = ibr
 26		iq.phone = tel
 27		IQ_MANAGER.write(iq).then do
 28			REDIS.set("catapult_jid-#{tel}", from_jid.to_s)
 29		end
 30	end
 31
 32	def deregister!
 33		ibr = Blather::Stanza::Iq::IBR.new(:set, @jid)
 34		ibr.from = from_jid
 35		ibr.remove!
 36		IQ_MANAGER.write(ibr)
 37	end
 38
 39	def stanza(s)
 40		s.dup.tap do |stanza|
 41			stanza.to = stanza.to.with(
 42				domain: jid.domain,
 43				node: jid.node || stanza.to.node
 44			)
 45			stanza.from = from_jid.with(resource: stanza.from&.resource)
 46		end
 47	end
 48
 49	def set_ogm_url(url)
 50		REDIS.set("catapult_ogm_url-#{from_jid}", url)
 51	end
 52
 53	def set_port_out_pin(pin)
 54		cmd = build_port_out_command(:execute)
 55
 56		IQ_MANAGER.write(cmd).then { |reply|
 57			session_id = reply.command[:sessionid]
 58			submit_cmd = build_submit_form(pin, session_id)
 59
 60			IQ_MANAGER.write(submit_cmd).then { |submit_reply|
 61				validate_submit_reply!(submit_reply)
 62			}.catch { |e|
 63				handle_pin_submission_error(e)
 64			}
 65		}
 66	end
 67
 68protected
 69
 70	def ibr
 71		s = Blather::Stanza::Iq::IBR.new(:set, jid)
 72		s.from = from_jid
 73		s.nick = creds[:account]
 74		s.username = creds[:username]
 75		s.password = creds[:password]
 76		s
 77	end
 78
 79	def build_submit_form(pin, session_id)
 80		build_port_out_command(:complete, session_id: session_id).tap { |iq|
 81			iq.form.type = :submit
 82			iq.form.fields = [
 83				{ var: "pin", value: pin, type: "text-private" },
 84				{ var: "confirm_pin", value: pin, type: "text-private" }
 85			]
 86		}
 87	end
 88
 89	def build_port_out_command(action, session_id: nil)
 90		Blather::Stanza::Iq::Command.new.tap { |iq|
 91			iq.to = jid
 92			iq.from = from_jid
 93			iq.node = "set-port-out-pin"
 94			iq.action = action
 95			iq.sessionid = session_id if session_id
 96		}
 97	end
 98
 99	def validate_submit_reply!(submit_reply)
100		sub_text = submit_reply.note&.text
101		case submit_reply.status
102		when :completed
103			raise sub_text if submit_reply.note&.[]("type") == "error"
104		when :canceled
105			raise CanceledError, reply.note&.text
106		else
107			raise sub_text
108		end
109	end
110
111	def handle_pin_submission_error(e)
112		if e.is_a?(Blather::StanzaError) || e.is_a?(RuntimeError)
113			EMPromise.reject(e)
114		else
115			Sentry.capture_exception(e)
116			EMPromise.reject(
117				RuntimeError.new(
118					"Unable to communicate with service. Please try again later."
119				)
120			)
121		end
122	end
123end