1#!/usr/bin/env ruby
2#
3# Copyright (C) 2017 Denver Gingerich <denver@ossguy.com>
4#
5# This file is part of sgx-catapult.
6#
7# sgx-catapult 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-catapult 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-catapult. If not, see <http://www.gnu.org/licenses/>.
19
20$stdout.sync = true
21
22puts "Soprani.ca/MMS Proxy for XMPP - Catapult v0.005\n\n"
23
24require 'goliath'
25require 'net/http'
26require 'redis/connection/hiredis'
27require 'uri'
28
29if ARGV.size != 3 then
30 puts "Usage: mpx-catapult.rb <http_listen_port> " +
31 "<redis_hostname> <redis_port>"
32 exit 0
33end
34
35t = Time.now
36puts "LOG %d.%09d: starting...\n\n" % [t.to_i, t.nsec]
37
38class WebhookHandler < Goliath::API
39 def response(env)
40 puts 'ENV: ' + env.to_s
41 puts 'path: ' + env['REQUEST_PATH']
42 puts 'method: ' + env['REQUEST_METHOD']
43 puts 'BODY: ' + Rack::Request.new(env).body.read
44
45 cred_key = "catapult_cred-"+env['REQUEST_PATH'].split('/', 3)[1]
46
47 # TODO: connect at start of program instead
48 conn = Hiredis::Connection.new
49 begin
50 conn.connect(ARGV[1], ARGV[2].to_i)
51 rescue => e
52 puts 'ERROR: Redis connection failed: ' + e.inspect
53 return [500, {'Content-Type' => 'text/plain'},
54 e.inspect]
55 end
56
57 conn.write ["EXISTS", cred_key]
58 if conn.read == 0
59 conn.disconnect
60
61 puts 'ERROR: invalid path rqst: ' + env['REQUEST_PATH']
62 return [404, {'Content-Type' => 'text/plain'},
63 'not found']
64 end
65
66 conn.write ["LRANGE", cred_key, 0, 3]
67 # we don't actually use users_num, but easier to read so left in
68 user_id, api_token, api_secret, users_num = conn.read
69 conn.disconnect
70
71 uri = URI.parse('https://api.catapult.inetwork.com')
72 http = Net::HTTP.new(uri.host, uri.port)
73 http.use_ssl = true
74 request = ''
75 if env['REQUEST_METHOD'] == 'GET'
76 request = Net::HTTP::Get.new('/v1/users/' + user_id +
77 '/media/' +env['REQUEST_PATH'].split('/', 3)[2])
78 elsif env['REQUEST_METHOD'] == 'HEAD'
79 request = Net::HTTP::Head.new('/v1/users/' + user_id +
80 '/media/' +env['REQUEST_PATH'].split('/', 3)[2])
81 else
82 puts 'ERROR: received non-HEAD/-GET request'
83 return [500, {'Content-Type' => 'text/plain'},
84 e.inspect]
85 end
86 request.basic_auth api_token, api_secret
87 response = http.request(request)
88
89 puts 'API response to send: ' + response.to_s + ' with code ' +
90 response.code + ', body <omitted_due_to_length>'
91
92 if response.code != '200'
93 puts 'ERROR: unexpected return code ' + response.code
94
95 if response.code == '404'
96 return [404, {'Content-Type' => 'text/plain'},
97 'not found']
98 end
99
100 return [response.code, {'Content-Type' => 'text/plain'},
101 'unexpected error']
102 end
103
104 # TODO: maybe need to reflect more headers (multi-part?)
105 [200, {'Content-Length' => response['content-length']},
106 response.body]
107 end
108end
109
110EM.run do
111 server = Goliath::Server.new('0.0.0.0', ARGV[0].to_i)
112 server.api = WebhookHandler.new
113 server.app = Goliath::Rack::Builder.build(server.api.class, server.api)
114 server.logger = Log4r::Logger.new('goliath')
115 server.logger.add(Log4r::StdoutOutputter.new('console'))
116 server.logger.level = Log4r::INFO
117 server.start
118end