update-ddns.rb düzenlemesi

sixtyfive bu gisti düzenledi 2 months ago. Düzenlemeye git

2 files changed, 72 insertions

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update-ddns.rb(dosya oluşturuldu)

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1	+	#!/usr/bin/env ruby
2	+	#
3	+	# Original, including IsoLinearCHiP's improvements: https://gist.github.com/IsoLinearCHiP/d6bc594143102e6acd131fc65c080f64
4	+	# Current version, adapted to Hetzner phasing out dns.h.d for console.h.d:
5	+
6	+	API="https://api.hetzner.cloud/v1"
7	+
8	+	require 'json'
9	+	require 'socket'
10	+	require 'net/http'
11	+	require 'fileutils'
12	+	require 'pstore'
13	+
14	+	FileUtils.mkdir_p "#{Dir.home}/.local/share/update-ddns"
15	+	@pstore = PStore.new "#{Dir.home}/.local/share/update-ddns/cache.pstore"
16	+
17	+	def api(path, records=nil)
18	+	cmd = if records
19	+	"curl -s -X POST -H 'Authorization: Bearer #{@token}' -H 'Content-Type: application/json' -d '{\"records\": #{records.to_json}}' #{API}#{path}"
20	+	else
21	+	"curl -s -H 'Authorization: Bearer #{@token}' #{API}#{path}"
22	+	end
23	+	json = JSON.parse `#{cmd}`
24	+	if json['error']
25	+	warn "Error: #{json['error']['message']}"
26	+	exit!
27	+	end
28	+	json
29	+	end
30	+
31	+	def cache(key, value=nil)
32	+	if value
33	+	@pstore.transaction{@pstore[key] = value}
34	+	end
35	+	@pstore.transaction(true){return @pstore[key]}
36	+	end
37	+
38	+	def current_public_ip
39	+	Socket.getifaddrs
40	+	.map{\|iface\| [iface.name, iface.addr.ip_address] if iface.addr.ipv4? if iface.addr}
41	+	.compact
42	+	.find{\|x\| x[0]=='ppp0'}[1]
43	+	end
44	+
45	+	def query
46	+	@token = cache('api_token')
47	+	zone = ARGV[0]
48	+	rrset_name = ARGV[1]
49	+	zone_id = cache('zone_id')
50	+	zone_id \|\|= cache('zone_id', api('/zones').find{\|x\| x['name'] == @zone}['id'])
51	+	public_ip = cache('current_public_ip', current_public_ip)
52	+	puts "Current WAN IP: #{public_ip}"
53	+	ips_on_record = api("/zones/#{zone_id}/rrsets/#{rrset_name}/A")['rrset']['records'].collect{\|x\| x['value']}
54	+	if ips_on_record.last != public_ip
55	+	api("/zones/#{zone_id}/rrsets/#{rrset_name}/A/actions/set_records", [{value: public_ip, comment: 'dynamically updated'}])
56	+	puts "record updated"
57	+	else
58	+	puts "no update necessary"
59	+	end
60	+	end
61	+
62	+	case ARGV.size
63	+	when 1
64	+	cache('api_token', ARGV[0])
65	+	puts "API token set"
66	+	when 2
67	+	(warn "Error: API token not set"; exit!) unless cache('api_token')
68	+	query
69	+	else
70	+	warn "Usage: update-ddns <zone> <record> \| update-ddns <api token>"
71	+	exit!
72	+	end

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