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
|
use core::panic;
use std::{net::SocketAddr, pin::Pin};
use http_body_util::{BodyExt, Full};
use hyper::{
Request, Response, StatusCode,
body::{Body, Bytes, Incoming},
server::conn::http1,
service::Service,
};
use hyper_util::rt::TokioIo;
use tokio::{net::TcpListener, process::Command, runtime::Runtime};
fn main() {
let rt = Runtime::new().unwrap();
rt.block_on(async { run().await });
}
async fn run() {
let addr = SocketAddr::from(([0, 0, 0, 0], 2562));
let listen = TcpListener::bind(addr).await.unwrap();
let svc = Svc {};
loop {
let (stream, _caddr) = listen.accept().await.unwrap();
let io = TokioIo::new(stream);
let svc_clone = svc.clone();
tokio::task::spawn(
async move { http1::Builder::new().serve_connection(io, svc_clone).await },
);
}
}
#[derive(Clone, Debug)]
struct Svc {}
impl Service<Request<Incoming>> for Svc {
type Response = Response<Full<Bytes>>;
type Error = hyper::Error;
type Future = Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send>>;
fn call(&self, req: Request<Incoming>) -> Self::Future {
fn make<B: Into<Bytes>>(b: B) -> Result<Response<Full<Bytes>>, hyper::Error> {
Ok(Response::builder().body(Full::new(b.into())).unwrap())
}
Box::pin(async { Ok(Self::handle(req).await) })
}
}
impl Svc {
async fn handle(req: Request<Incoming>) -> Response<Full<Bytes>> {
let method = req.method().as_str().to_ascii_uppercase();
let path = req.uri().path().to_owned();
let headers = req.headers().clone();
let body = req.into_body().collect().await.unwrap().to_bytes();
let content_length = body.len();
let mut cmd = Command::new("/usr/lib/cgit/cgit.cgi");
cmd.env("PATH_INFO", path).env("REQUEST_METHOD", method);
for (header, value) in headers {
if let Some(header) = header {
let hname = header.as_str();
let hvalue = value.to_str().unwrap();
cmd.env(hname.to_ascii_uppercase(), hvalue);
if hname.to_ascii_lowercase() == "user-agent" {
println!("USER_AGENT: {hvalue}");
}
}
}
/*if content_length > 0 {
cmd.env("CONTENT_LENGTH", content_length.to_string());
}*/
let output = cmd.output().await.unwrap();
let response_raw = output.stdout;
let mut response = Response::builder();
println!("{}", String::from_utf8_lossy(&response_raw));
let mut curr = response_raw.as_slice();
let mut status = None;
let mut headers = vec![];
let body = loop {
let nl = curr.iter().position(|b| *b == b'\n').expect("no nl in header");
let line = &curr[..nl];
let colon = line.iter().position(|b| *b == b':').expect("no colon in header");
let key = &line[..colon];
let value = &line[colon + 1..];
headers.push((key, value));
let key_string = String::from_utf8_lossy(key);
if key_string == "Status" {
let value_string = String::from_utf8_lossy(value);
if let Some((raw_code, raw_msg)) = value_string.trim().split_once(' ') {
let code: usize = raw_code.parse().unwrap();
status = Some((code, raw_msg.to_owned()));
}
}
// Body next
if curr[nl + 1] == b'\n' || (curr[nl + 1] == b'\r' && curr[nl + 2] == b'\n') {
break &curr[nl + 2..];
} else {
curr = &curr[nl + 1..];
}
};
match status {
None => response = response.status(StatusCode::OK),
Some((code, _status)) => {
response = response.status(StatusCode::from_u16(code as u16).unwrap());
}
}
for (key, value) in headers {
response = response.header(key.to_vec(), value.to_vec());
}
response.body(Full::new(Bytes::from(body.to_vec()))).unwrap()
}
fn make<B: Into<Bytes>>(b: B) -> Response<Full<Bytes>> {
Response::builder().body(Full::new(b.into())).unwrap()
}
}
|
