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\n"\
23 "==>> last commit of this version is " + `git rev-parse HEAD` + "\n"
24
25require 'goliath'
26require 'net/http'
27require 'redis/connection/hiredis'
28require 'uri'
29
30if ARGV.size != 3
31 puts "Usage: mpx-catapult.rb <http_listen_port> "\
32 "<redis_hostname> <redis_port>"
33 exit 0
34end
35
36t = Time.now
37puts "LOG %d.%09d: starting...\n\n" % [t.to_i, t.nsec]
38
39class WebhookHandler < Goliath::API
40 def response(env)
41 puts 'ENV: ' + env.to_s
42 puts 'path: ' + env['REQUEST_PATH']
43 puts 'method: ' + env['REQUEST_METHOD']
44 puts 'BODY: ' + Rack::Request.new(env).body.read
45
46 cred_key = "catapult_cred-"+env['REQUEST_PATH'].split('/', 3)[1]
47
48 # TODO: connect at start of program instead
49 conn = Hiredis::Connection.new
50 begin
51 conn.connect(ARGV[1], ARGV[2].to_i)
52 rescue => e
53 puts 'ERROR: Redis connection failed: ' + e.inspect
54 return [
55 500,
56 {'Content-Type' => 'text/plain'},
57 e.inspect
58 ]
59 end
60
61 conn.write ["EXISTS", cred_key]
62 if conn.read == 0
63 conn.disconnect
64
65 puts 'ERROR: invalid path rqst: ' + env['REQUEST_PATH']
66 return [
67 404,
68 {'Content-Type' => 'text/plain'},
69 'not found'
70 ]
71 end
72
73 conn.write ["LRANGE", cred_key, 0, 3]
74 # we don't actually use users_num, but easier to read so left in
75 user_id, api_token, api_secret, users_num = conn.read
76 conn.disconnect
77
78 uri = URI.parse('https://api.catapult.inetwork.com')
79 http = Net::HTTP.new(uri.host, uri.port)
80 http.use_ssl = true
81 request = ''
82 if env['REQUEST_METHOD'] == 'GET'
83 request = Net::HTTP::Get.new('/v1/users/' + user_id +
84 '/media/' +env['REQUEST_PATH'].split('/', 3)[2])
85 elsif env['REQUEST_METHOD'] == 'HEAD'
86 request = Net::HTTP::Head.new('/v1/users/' + user_id +
87 '/media/' +env['REQUEST_PATH'].split('/', 3)[2])
88 else
89 puts 'ERROR: received non-HEAD/-GET request'
90 return [
91 500,
92 {'Content-Type' => 'text/plain'},
93 e.inspect
94 ]
95 end
96 request.basic_auth api_token, api_secret
97 response = http.request(request)
98
99 puts 'API response to send: ' + response.to_s + ' with code ' +
100 response.code + ', body <omitted_due_to_length>'
101
102 if response.code != '200'
103 puts 'ERROR: unexpected return code ' + response.code
104
105 if response.code == '404'
106 return [
107 404,
108 {'Content-Type' => 'text/plain'},
109 'not found'
110 ]
111 end
112
113 return [
114 response.code,
115 {'Content-Type' => 'text/plain'},
116 'unexpected error'
117 ]
118 end
119
120 # TODO: maybe need to reflect more headers (multi-part?)
121 [200, {'Content-Length' => response['content-length']},
122 response.body]
123 end
124end
125
126EM.run do
127 server = Goliath::Server.new('0.0.0.0', ARGV[0].to_i)
128 server.api = WebhookHandler.new
129 server.app = Goliath::Rack::Builder.build(server.api.class, server.api)
130 server.logger = Log4r::Logger.new('goliath')
131 server.logger.add(Log4r::StdoutOutputter.new('console'))
132 server.logger.level = Log4r::INFO
133 server.start
134end