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# frozen_string_literal: true
require "pg/em/connection_pool"
require "bigdecimal"
require "blather/client/dsl" # Require this first to not auto-include
require "blather/client"
require "braintree"
require "date"
require "dhall"
require "em-hiredis"
require "em_promise"
require "ruby-bandwidth-iris"
require "sentry-ruby"
require "statsd-instrument"
$stdout.sync = true
Sentry.init
CONFIG =
Dhall::Coder
.new(safe: Dhall::Coder::JSON_LIKE + [Symbol, Proc])
.load(ARGV[0], transform_keys: ->(k) { k&.to_sym })
singleton_class.class_eval do
include Blather::DSL
Blather::DSL.append_features(self)
end
require_relative "lib/alt_top_up_form"
require_relative "lib/add_bitcoin_address"
require_relative "lib/backend_sgx"
require_relative "lib/bandwidth_tn_order"
require_relative "lib/btc_sell_prices"
require_relative "lib/buy_account_credit_form"
require_relative "lib/command_list"
require_relative "lib/customer"
require_relative "lib/electrum"
require_relative "lib/error_to_send"
require_relative "lib/em"
require_relative "lib/payment_methods"
require_relative "lib/registration"
require_relative "lib/transaction"
require_relative "lib/web_register_manager"
require_relative "lib/statsd"
ELECTRUM = Electrum.new(**CONFIG[:electrum])
Faraday.default_adapter = :em_synchrony
BandwidthIris::Client.global_options = {
account_id: CONFIG[:creds][:account],
username: CONFIG[:creds][:username],
password: CONFIG[:creds][:password]
}
def new_sentry_hub(stanza, name: nil)
hub = Sentry.get_current_hub&.new_from_top
raise "Sentry.init has not been called" unless hub
hub.push_scope
hub.current_scope.clear_breadcrumbs
hub.current_scope.set_transaction_name(name) if name
hub.current_scope.set_user(jid: stanza.from.stripped.to_s)
hub
end
# Braintree is not async, so wrap in EM.defer for now
class AsyncBraintree
def initialize(environment:, merchant_id:, public_key:, private_key:, **)
@gateway = Braintree::Gateway.new(
environment: environment,
merchant_id: merchant_id,
public_key: public_key,
private_key: private_key
)
end
def respond_to_missing?(m, *)
@gateway.respond_to?(m)
end
def method_missing(m, *args)
return super unless respond_to_missing?(m, *args)
EM.promise_defer(klass: PromiseChain) do
@gateway.public_send(m, *args)
end
end
class PromiseChain < EMPromise
def respond_to_missing?(*)
false # We don't actually know what we respond to...
end
def method_missing(m, *args)
return super if respond_to_missing?(m, *args)
self.then { |o| o.public_send(m, *args) }
end
end
end
BRAINTREE = AsyncBraintree.new(**CONFIG[:braintree])
def panic(e, hub=nil)
m = e.respond_to?(:message) ? e.message : e
warn "Error raised during event loop: #{e.class}: #{m}"
warn e.backtrace if e.respond_to?(:backtrace)
if e.is_a?(::Exception)
(hub || Sentry).capture_exception(e, hint: { background: false })
else
(hub || Sentry).capture_message(e.to_s, hint: { background: false })
end
exit 1
end
EM.error_handler(&method(:panic))
when_ready do
BLATHER = self
REDIS = EM::Hiredis.connect
BTC_SELL_PRICES = BTCSellPrices.new(REDIS, CONFIG[:oxr_app_id])
DB = PG::EM::ConnectionPool.new(dbname: "jmp") do |conn|
conn.type_map_for_results = PG::BasicTypeMapForResults.new(conn)
conn.type_map_for_queries = PG::BasicTypeMapForQueries.new(conn)
end
EM.add_periodic_timer(3600) do
ping = Blather::Stanza::Iq::Ping.new(:get, CONFIG[:server][:host])
ping.from = CONFIG[:component][:jid]
self << ping
end
end
# workqueue_count MUST be 0 or else Blather uses threads!
setup(
CONFIG[:component][:jid],
CONFIG[:component][:secret],
CONFIG[:server][:host],
CONFIG[:server][:port],
nil,
nil,
workqueue_count: 0
)
message to: /\Aaccount@/, body: /./ do |m|
StatsD.increment("deprecated_account_bot")
self << m.reply.tap do |out|
out.body = "This bot is deprecated. Please talk to xmpp:cheogram.com"
end
end
before(
:iq,
type: [:error, :result],
to: /\Acustomer_/,
from: /(\A|@)#{CONFIG[:sgx]}(\/|\Z)/
) { |iq| halt if IQ_MANAGER.fulfill(iq) }
before nil, to: /\Acustomer_/, from: /(\A|@)#{CONFIG[:sgx]}(\/|\Z)/ do |s|
StatsD.increment("stanza_customer")
sentry_hub = new_sentry_hub(s, name: "stanza_customer")
Customer.for_customer_id(
s.to.node.delete_prefix("customer_")
).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: s.from.stripped.to_s
)
customer.stanza_to(s)
}.catch { |e| panic(e, sentry_hub) }
halt
end
ADDRESSES_NS = "http://jabber.org/protocol/address"
message(
to: /\A#{CONFIG[:component][:jid]}\Z/,
from: /(\A|@)#{CONFIG[:sgx]}(\/|\Z)/
) do |m|
StatsD.increment("inbound_group_text")
sentry_hub = new_sentry_hub(m, name: "message")
address = m.find("ns:addresses", ns: ADDRESSES_NS).first
&.find("ns:address", ns: ADDRESSES_NS)
&.find { |el| el["jid"].to_s.start_with?("customer_") }
pass unless address
Customer.for_customer_id(
Blather::JID.new(address["jid"].to_s).node.delete_prefix("customer_")
).then(&:jid).then { |customer_jid|
m.from = m.from.with(domain: CONFIG[:component][:jid])
m.to = m.to.with(domain: customer_jid.domain)
address["jid"] = customer_jid.to_s
BLATHER << m
}.catch { |e| panic(e, sentry_hub) }
end
# Ignore groupchat messages
# Especially if we have the component join MUC for notifications
message(type: :groupchat) { true }
def billable_message(m)
(m.body && !m.body.empty?) || m.find("ns:x", ns: OOB.registered_ns).first
end
message do |m|
StatsD.increment("message")
sentry_hub = new_sentry_hub(m, name: "message")
today = Time.now.utc.to_date
Customer.for_jid(m.from.stripped).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id, jid: m.from.stripped.to_s
)
EMPromise.all([
customer, (customer.incr_message_usage if billable_message(m)),
REDIS.exists("jmp_usage_notify-#{customer.customer_id}"),
customer.stanza_from(m)
])
}.then { |(customer, _, already, _)|
next if already == 1
customer.message_usage((today..(today - 30))).then do |usage|
next unless usage > 500
BLATHER.join(CONFIG[:notify_admin], "sgx-jmp")
BLATHER.say(
CONFIG[:notify_admin],
"#{customer.customer_id} has used #{usage} messages since #{today - 30}",
:groupchat
)
REDIS.set("jmp_usage_notify-#{customer.customer_id}", ex: 60 * 60 * 24)
end
}.catch { |e| panic(e, sentry_hub) }
end
message :error? do |m|
StatsD.increment("message_error")
puts "MESSAGE ERROR: #{m.inspect}"
end
class SessionManager
def initialize(blather, id_msg, timeout: 5, error_if: nil)
@blather = blather
@sessions = {}
@id_msg = id_msg
@timeout = timeout
@error_if = error_if
end
def promise_for(stanza)
id = "#{stanza.to.stripped}/#{stanza.public_send(@id_msg)}"
@sessions.fetch(id) do
@sessions[id] = EMPromise.new
EM.add_timer(@timeout) do
@sessions.delete(id)&.reject(:timeout)
end
@sessions[id]
end
end
def write(stanza)
promise = promise_for(stanza)
@blather << stanza
promise
end
def fulfill(stanza)
id = "#{stanza.from.stripped}/#{stanza.public_send(@id_msg)}"
if stanza.error? || @error_if&.call(stanza)
@sessions.delete(id)&.reject(stanza)
else
@sessions.delete(id)&.fulfill(stanza)
end
end
end
IQ_MANAGER = SessionManager.new(self, :id)
COMMAND_MANAGER = SessionManager.new(
self,
:sessionid,
timeout: 60 * 60,
error_if: ->(s) { s.cancel? }
)
web_register_manager = WebRegisterManager.new
disco_info to: Blather::JID.new(CONFIG[:component][:jid]) do |iq|
reply = iq.reply
reply.identities = [{
name: "JMP.chat",
type: "sms",
category: "gateway"
}]
reply.features = [
"http://jabber.org/protocol/disco#info",
"http://jabber.org/protocol/commands"
]
form = Blather::Stanza::X.find_or_create(reply.query)
form.type = "result"
form.fields = [
{
var: "FORM_TYPE",
type: "hidden",
value: "http://jabber.org/network/serverinfo"
}
] + CONFIG[:xep0157]
self << reply
end
disco_info do |iq|
reply = iq.reply
reply.identities = [{
name: "JMP.chat",
type: "sms",
category: "client"
}]
reply.features = [
"urn:xmpp:receipts"
]
self << reply
end
disco_items node: "http://jabber.org/protocol/commands" do |iq|
StatsD.increment("command_list")
sentry_hub = new_sentry_hub(iq, name: iq.node)
reply = iq.reply
CommandList.for(iq.from.stripped).then { |list|
reply.items = list.map do |item|
Blather::Stanza::DiscoItems::Item.new(
iq.to,
item[:node],
item[:name]
)
end
self << reply
}.catch { |e| panic(e, sentry_hub) }
end
iq "/iq/ns:services", ns: "urn:xmpp:extdisco:2" do |iq|
StatsD.increment("extdisco")
reply = iq.reply
reply << Nokogiri::XML::Builder.new {
services(xmlns: "urn:xmpp:extdisco:2") do
service(
type: "sip",
host: CONFIG[:sip_host]
)
end
}.doc.root
self << reply
end
command :execute?, node: "jabber:iq:register", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
EMPromise.resolve(nil).then {
Customer.for_jid(iq.from.stripped)
}.catch {
sentry_hub.add_breadcrumb(Sentry::Breadcrumb.new(
message: "Customer.create"
))
Customer.create(iq.from.stripped)
}.then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: iq.from.stripped.to_s
)
sentry_hub.add_breadcrumb(Sentry::Breadcrumb.new(
message: "Registration.for"
))
Registration.for(
iq,
customer,
web_register_manager
).then(&:write).then { StatsD.increment("registration.completed") }
}.catch_only(ErrorToSend) { |e|
self << e.stanza
}.catch { |e| panic(e, sentry_hub) }
end
def reply_with_note(iq, text, type: :info)
reply = iq.reply
reply.status = :completed
reply.note_type = type
reply.note_text = text
self << reply
end
# Commands that just pass through to the SGX
command node: [
"number-display",
"configure-calls",
"record-voicemail-greeting"
] do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
Customer.for_jid(iq.from.stripped).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: iq.from.stripped.to_s
)
customer.stanza_from(iq)
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "credit cards", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
reply = iq.reply
reply.status = :completed
Customer.for_jid(iq.from.stripped).then { |customer|
oob = OOB.find_or_create(reply.command)
oob.url = CONFIG[:credit_card_url].call(
reply.to.stripped.to_s.gsub("\\", "%5C"),
customer.customer_id
)
oob.desc = "Manage credits cards and settings"
reply.note_type = :info
reply.note_text = "#{oob.desc}: #{oob.url}"
self << reply
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "top up", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
reply = iq.reply
reply.allowed_actions = [:complete]
Customer.for_jid(iq.from.stripped).then { |customer|
BuyAccountCreditForm.for(customer).then do |credit_form|
credit_form.add_to_form(reply.form)
COMMAND_MANAGER.write(reply).then { |iq2| [customer, credit_form, iq2] }
end
}.then { |(customer, credit_form, iq2)|
iq = iq2 # This allows the catch to use it also
Transaction.sale(customer, **credit_form.parse(iq2.form))
}.then { |transaction|
transaction.insert.then do
reply_with_note(iq, "#{transaction} added to your account balance.")
end
}.catch_only(BuyAccountCreditForm::AmountValidationError) { |e|
reply_with_note(iq, e.message, type: :error)
}.catch { |e|
sentry_hub.capture_exception(e)
text = "Failed to buy credit, system said: #{e.message}"
reply_with_note(iq, text, type: :error)
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "alt top up", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
reply = iq.reply
reply.status = :executing
reply.allowed_actions = [:complete]
Customer.for_jid(iq.from.stripped).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: iq.from.stripped.to_s
)
EMPromise.all([AltTopUpForm.for(customer), customer])
}.then { |(alt_form, customer)|
reply.command << alt_form.form
COMMAND_MANAGER.write(reply).then do |iq2|
AddBitcoinAddress.for(iq2, alt_form, customer).write
end
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "reset sip account", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
Customer.for_jid(iq.from.stripped).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: iq.from.stripped.to_s
)
customer.reset_sip_account
}.then { |sip_account|
reply = iq.reply
reply.command << sip_account.form
BLATHER << reply
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "usage", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
report_for = (Date.today..(Date.today << 1))
Customer.for_jid(iq.from.stripped).then { |customer|
sentry_hub.current_scope.set_user(
id: customer.customer_id,
jid: iq.from.stripped.to_s
)
customer.usage_report(report_for)
}.then { |usage_report|
reply = iq.reply
reply.status = :completed
reply.command << usage_report.form
BLATHER << reply
}.catch { |e| panic(e, sentry_hub) }
end
command :execute?, node: "web-register", sessionid: nil do |iq|
StatsD.increment("command", tags: ["node:#{iq.node}"])
sentry_hub = new_sentry_hub(iq, name: iq.node)
begin
jid = iq.form.field("jid")&.value.to_s.strip
tel = iq.form.field("tel")&.value.to_s.strip
sentry_hub.current_scope.set_user(jid: jid, tel: tel)
if iq.from.stripped != CONFIG[:web_register][:from]
BLATHER << iq.as_error("forbidden", :auth)
elsif jid == "" || tel !~ /\A\+\d+\Z/
reply_with_note(iq, "Invalid JID or telephone number.", type: :error)
else
IQ_MANAGER.write(Blather::Stanza::Iq::Command.new.tap { |cmd|
cmd.to = CONFIG[:web_register][:to]
cmd.node = "push-register"
cmd.form.fields = [var: "to", value: jid]
cmd.form.type = "submit"
}).then { |result|
final_jid = result.form.field("from")&.value.to_s.strip
web_register_manager[final_jid] = tel
BLATHER << iq.reply.tap { |reply| reply.status = :completed }
}.catch { |e| panic(e, sentry_hub) }
end
rescue StandardError => e
sentry_hub.capture_exception(e)
end
end
command sessionid: /./ do |iq|
COMMAND_MANAGER.fulfill(iq)
end
iq type: [:result, :error] do |iq|
IQ_MANAGER.fulfill(iq)
end
iq type: [:get, :set] do |iq|
StatsD.increment("unknown_iq")
self << Blather::StanzaError.new(iq, "feature-not-implemented", :cancel)
end