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
|
use std::io::{Read, Write};
use std::net::TcpStream;
use std::sync::mpsc;
use std::thread;
use std::time::{Duration, Instant};
pub struct TlsConnector {
connector: rustls::ClientConnection,
server_name: String,
}
impl TlsConnector {
pub fn new(server_name: &str) -> Result<Self, Box<dyn std::error::Error>> {
let config = rustls::ClientConfig::builder()
.dangerous()
.with_custom_certificate_verifier(std::sync::Arc::new(InsecureVerifier))
.with_no_client_auth();
let connector =
rustls::ClientConnection::new(std::sync::Arc::new(config), server_name.try_into()?);
Ok(Self {
connector,
server_name: server_name.to_string(),
})
}
pub fn connect(
&self,
stream: TcpStream,
) -> Result<TlsClientStream, Box<dyn std::error::Error>> {
let mut conn = rustls::ClientConnection::new(
std::sync::Arc::new(
rustls::ClientConfig::builder()
.dangerous()
.with_custom_verifier(rustls::client::danger::ServerCertVerifier::DEFAULT)
.with_no_client_auth(),
),
self.server_name.clone().try_into()?,
)?;
conn.complete_io(&mut std::io::BufReader::new(&stream))?;
Ok(TlsClientStream {
stream,
conn: std::sync::Arc::new(conn),
})
}
}
struct InsecureVerifier;
impl rustls::client::danger::ServerCertVerifier for InsecureVerifier {
fn verify_server_cert(
&self,
_end_entity: &rustls::pki_types::CertificateDer<'_>,
_intermediates: &[rustls::pki_types::CertificateDer<'_>],
_server_name: &rustls::pki_types::ServerName<'_>,
_ocsp_response: &[u8],
_now: std::time::SystemTime,
) -> Result<rustls::client::danger::ServerCertVerified, rustls::Error> {
Ok(rustls::client::danger::ServerCertVerified::assertion())
}
fn verify_tls12_signature(
&self,
_message: &[u8],
_cert: &rustls::pki_types::CertificateDer<'_>,
_dss: &rustls::DigitallySignedStruct,
) -> Result<rustls::client::danger::HandshakeSignatureValid, rustls::Error> {
Ok(rustls::client::danger::HandshakeSignatureValid::assertion())
}
fn verify_tls13_signature(
&self,
_message: &[u8],
_cert: &rustls::pki_types::CertificateDer<'_>,
_dss: &rustls::DigitallySignedStruct,
) -> Result<rustls::client::danger::HandshakeSignatureValid, rustls::Error> {
Ok(rustls::client::danger::HandshakeSignatureValid::assertion())
}
fn supported_verify_schemes(&self) -> Vec<rustls::SignatureScheme> {
vec![
rustls::SignatureScheme::RSA_PKCS1_SHA256,
rustls::SignatureScheme::RSA_PKCS1_SHA384,
rustls::SignatureScheme::RSA_PKCS1_SHA512,
rustls::SignatureScheme::RSA_PSS_SHA256,
rustls::SignatureScheme::RSA_PSS_SHA384,
rustls::SignatureScheme::RSA_PSS_SHA512,
rustls::SignatureScheme::ECDSA_NISTP256_SHA256,
rustls::SignatureScheme::ECDSA_NISTP384_SHA384,
rustls::SignatureScheme::ECDSA_NISTP521_SHA512,
rustls::SignatureScheme::RSA_PSS_SHA256_LEGACY,
rustls::SignatureScheme::RSA_PSS_SHA384_LEGACY,
rustls::SignatureScheme::RSA_PSS_SHA512_LEGACY,
]
}
}
pub struct TlsClientStream {
stream: TcpStream,
conn: std::sync::Arc<rustls::ClientConnection>,
}
impl TlsClientStream {
pub fn read_line(&mut self, buf: &mut String) -> std::io::Result<usize> {
let mut byte_buf = [0u8; 1024];
loop {
let mut tls_reader = std::io::BufReader::new(self.conn.clone());
let n = tls_reader.read(&mut byte_buf)?;
if n == 0 {
return Ok(0);
}
let chunk = std::str::from_utf8(&byte_buf[..n]).unwrap_or("");
buf.push_str(chunk);
if buf.contains('\n') {
return Ok(n);
}
}
}
pub fn write_line(&mut self, msg: &str) -> std::io::Result<()> {
use std::io::Write;
self.conn.writer().write_all(msg.as_bytes())?;
self.conn.writer().write_all(b"\n")?;
self.conn.writer().flush()?;
Ok(())
}
pub fn try_clone(&self) -> std::io::Result<TlsClientStream> {
let new_stream = self.stream.try_clone()?;
let mut conn = rustls::ClientConnection::new(
std::sync::Arc::new(
rustls::ClientConfig::builder()
.dangerous()
.with_custom_verifier(rustls::client::danger::ServerCertVerifier::DEFAULT)
.with_no_client_auth(),
),
self.server_name.clone().try_into().unwrap(),
)?;
conn.complete_io(&mut std::io::BufReader::new(&new_stream))?;
Ok(TlsClientStream {
stream: new_stream,
conn: std::sync::Arc::new(conn),
})
}
}
|
