1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
use std::fs::File;
use std::io::Read;
use std::net::{Ipv4Addr, SocketAddr, ToSocketAddrs};
use std::time::Duration;
use anyhow::{anyhow, bail, Context, Result};
use crate::config::{ConfigOpts, ConfigOptsAcme, ConfigOptsBase, ConfigOptsConsul};
// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
// In this file, we take ConfigOpts and transform them into ready-to-use
// RuntimeConfig. We apply default values and business logic.
#[derive(Debug)]
pub struct RuntimeConfigAcme {
pub email: String,
}
#[derive(Debug)]
pub struct RuntimeConfigConsul {
pub node_name: String,
pub url: String,
pub tls: Option<(Option<reqwest::Certificate>, bool, reqwest::Identity)>,
}
#[derive(Debug)]
pub struct RuntimeConfigFirewall {
pub refresh_time: Duration,
}
#[derive(Debug)]
pub struct RuntimeConfigIgd {
pub private_ip: Option<Ipv4Addr>,
pub expiration_time: Duration,
pub refresh_time: Duration,
}
#[derive(Debug)]
pub struct RuntimeConfigStun {
pub stun_server_v4: SocketAddr,
pub stun_server_v6: SocketAddr,
pub refresh_time: Duration,
}
#[derive(Debug)]
pub struct RuntimeConfig {
pub acme: Option<RuntimeConfigAcme>,
pub consul: RuntimeConfigConsul,
pub firewall: RuntimeConfigFirewall,
pub igd: RuntimeConfigIgd,
pub stun: RuntimeConfigStun,
}
impl RuntimeConfig {
pub fn new(opts: ConfigOpts) -> Result<Self> {
let acme = RuntimeConfigAcme::new(opts.acme)?;
let consul = RuntimeConfigConsul::new(opts.consul)?;
let firewall = RuntimeConfigFirewall::new(&opts.base)?;
let igd = RuntimeConfigIgd::new(&opts.base)?;
let stun = RuntimeConfigStun::new(&opts.base)?;
Ok(Self {
acme,
consul,
firewall,
igd,
stun,
})
}
}
impl RuntimeConfigAcme {
pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
let email = opts.email.expect(
"'DIPLONAT_ACME_EMAIL' environment variable is required if 'DIPLONAT_ACME_ENABLE' == 'true'",
);
Ok(Some(Self { email }))
}
}
impl RuntimeConfigConsul {
pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
let node_name = opts
.node_name
.expect("'DIPLONAT_CONSUL_NODE_NAME' environment variable is required");
let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
let tls = match (&opts.client_cert, &opts.client_key) {
(Some(client_cert), Some(client_key)) => {
let cert = match &opts.ca_cert {
Some(ca_cert) => {
let mut ca_cert_buf = vec![];
File::open(ca_cert)?.read_to_end(&mut ca_cert_buf)?;
Some(reqwest::Certificate::from_pem(&ca_cert_buf[..])?)
}
None => None,
};
let mut client_cert_buf = vec![];
File::open(client_cert)?.read_to_end(&mut client_cert_buf)?;
let mut client_key_buf = vec![];
File::open(client_key)?.read_to_end(&mut client_key_buf)?;
let ident = reqwest::Identity::from_pem(
&[&client_cert_buf[..], &client_key_buf[..]].concat()[..],
)?;
Some((cert, opts.tls_skip_verify, ident))
}
(None, None) => None,
_ => bail!("Incomplete TLS configuration parameters"),
};
Ok(Self {
node_name,
url,
tls,
})
}
}
impl RuntimeConfigFirewall {
pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
let refresh_time =
Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
Ok(Self { refresh_time })
}
}
impl RuntimeConfigIgd {
pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
let private_ip = opts
.private_ip
.as_ref()
.map(|x| x.parse())
.transpose()
.context("parse private_ip")?;
let expiration_time = Duration::from_secs(
opts.expiration_time
.unwrap_or(super::EXPIRATION_TIME)
.into(),
);
let refresh_time =
Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
return Err(anyhow!(
"IGD expiration time (currently: {}s) must be at least twice bigger than refresh time \
(currently: {}s)",
expiration_time.as_secs(),
refresh_time.as_secs()
));
}
Ok(Self {
private_ip,
expiration_time,
refresh_time,
})
}
}
impl RuntimeConfigStun {
pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
let mut stun_server_v4 = None;
let mut stun_server_v6 = None;
for addr in opts
.stun_server
.as_deref()
.unwrap_or(super::STUN_SERVER)
.to_socket_addrs()?
{
if addr.is_ipv4() {
stun_server_v4 = Some(addr);
}
if addr.is_ipv6() {
stun_server_v6 = Some(addr);
}
}
let refresh_time =
Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
Ok(Self {
stun_server_v4: stun_server_v4
.ok_or(anyhow!("Unable to resolve STUN server's IPv4 address"))?,
stun_server_v6: stun_server_v6
.ok_or(anyhow!("Unable to resolve STUN server's IPv6 address"))?,
refresh_time,
})
}
}
|
