1#!/usr/bin/env ruby
 2#
 3# Copyright (C) 2020  Denver Gingerich <denver@ossguy.com>
 4#
 5# This file is part of sgx-bwmsgsv2.
 6#
 7# sgx-bwmsgsv2 is free software: you can redistribute it and/or modify it under
 8# the terms of the GNU Affero General Public License as published by the Free
 9# Software Foundation, either version 3 of the License, or (at your option) any
10# later version.
11#
12# sgx-bwmsgsv2 is distributed in the hope that it will be useful, but WITHOUT
13# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14# FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
15# details.
16#
17# You should have received a copy of the GNU Affero General Public License along
18# with sgx-bwmsgsv2.  If not, see <http://www.gnu.org/licenses/>.
19
20require 'redis'
21require 'hiredis'
22require 'net/http'
23require 'json'
24require 'time'
25
26$stdout.sync = true
27
28puts "Redis queue to SGX HTTP request translator - for Bandwidth API V2 SGX\n"\
29	"==>> last commit of this version is " + `git rev-parse HEAD` + "\n"
30
31if ARGV.size != 4
32	puts "Usage: r2s-bwmsgsv2.rb <redis_input_queue_key> "\
33		"<redis_pending_queue_key> <sgx_hostname> <sgx_http_port>"
34	exit 0
35end
36
37["INT", "TERM"].each do |sig|
38	trap(sig) do
39		puts "Translator has terminated due to SIG#{sig}."
40		exit 0
41	end
42end
43
44t = Time.now
45puts "LOG %d.%09d: starting...\n\n" % [t.to_i, t.nsec]
46
47redis = Redis.new(:driver => :hiredis)
48
49while true
50	timestamps_plus_json_blob = redis.brpoplpush(ARGV[0], ARGV[1])
51	# TODO: add timestamping here, and MUST include a ./tai call with it
52
53	# TODO: print less stuff in here
54	puts "TODO - got some stuff: " + timestamps_plus_json_blob
55
56	# add some timestamps to timestamps_plus_json_blob (our own)
57
58	# TODO: fix so sending timestamps_plus_json_blob to SGX, and via POST
59	response = Net::HTTP.get_response(
60		URI("https://#{ARGV[2]}:#{ARGV[3]}/r2tst.php")
61	)
62
63	puts "TODO - response.code = #{response.code} and body #{response.body}"
64
65	# if SGX gives back anything but response.code 200, retry 5 times-ish
66	# if SGX failed to respond after retries, email or other notify
67	#  and back off with even longer retries (can't do anything else really)
68
69	# if got HTTP 200, then:
70
71	# redis.set(...) with expiration of 3 days, including timestamps
72
73	# confirm ARGV[1] key has one element and e == timestamps_plus_json_blob
74	#  if so, then rpop ARGV[1] and discard
75	#  if not, then email or other notify, and probably exit with failure
76end