106 lines
3.5 KiB
Rust
106 lines
3.5 KiB
Rust
use std::collections::HashMap;
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use std::io;
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use std::io::ErrorKind;
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use std::process::Stdio;
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use actix_web::{HttpRequest, web, HttpResponse};
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use actix_web::http::{header, StatusCode};
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use actix_web::web::Buf;
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use actix_web_httpauth::extractors::basic::BasicAuth;
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use futures::StreamExt;
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use tokio::io::{AsyncBufReadExt, AsyncWriteExt};
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use tokio::process::{Child, Command};
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use crate::gitust::Gitust;
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use crate::reader::ToStream;
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//#[get("/git/{owner}/{repo}.git/{path:.*}")]
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pub async fn git_proto(
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mut payload : web::Payload,
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web::Path((owner, reponame, path)): web::Path<(String, String, String)>,
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mut req: HttpRequest,
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gitust : web::Data<Gitust>,
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auth : BasicAuth,
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) -> io::Result<HttpResponse>{
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//println!("enter git_proto");
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let mut cmd = Command::new("git");
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cmd.arg("http-backend");
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// Required environment variables
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cmd.env("REQUEST_METHOD", req.method().as_str());
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cmd.env("GIT_PROJECT_ROOT", &gitust.repo_root_path);
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cmd.env("PATH_INFO", format!("/{}/{}.git/{}",owner, reponame, path));
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cmd.env("REMOTE_USER", auth.user_id().to_string());
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//cmd.env("REMOTE_ADDR", req.remote_addr().to_string());
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cmd.env("QUERY_STRING", req.query_string());
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cmd.env("CONTENT_TYPE", header(&req, header::CONTENT_TYPE));
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cmd.env("GIT_HTTP_EXPORT_ALL", "");
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cmd.stderr(Stdio::inherit())
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.stdout(Stdio::piped())
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.stdin(Stdio::piped());
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let mut p: Child = cmd.spawn()?;
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let mut input = p.stdin.take().unwrap();
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//println!("Displaying request...");
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while let Some(Ok(bytes)) = payload.next().await {
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//println!("request body : {}", String::from_utf8_lossy(bytes.bytes()));
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input.write_all(bytes.bytes()).await;
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}
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//println!("input sent");
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let mut rdr = tokio::io::BufReader::new(p.stdout.take().unwrap());
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let mut headers = HashMap::new();
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loop {
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let mut line = String::new();
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let len = rdr.read_line(&mut line).await?;
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// println!("line : \"{}\"", line);
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if line.len() == 2 {
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break;
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}
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let mut parts = line.splitn(2, ':');
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let key = parts.next().unwrap();
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let value = parts.next().unwrap();
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let value_len = value.len();
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let value = &value[1..value_len-2];
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headers
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.entry(key.to_string())
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.or_insert_with(Vec::new)
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.push(value.to_string());
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}
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//println!("response headers : {:?}", headers);
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let status_code : u16 = {
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let line = headers.remove("Status").unwrap_or_default();
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// println!("{:?}", &line);
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let line = line.into_iter().next().unwrap_or_default();
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let parts : Vec<&str> = line.split(' ').collect();
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parts.into_iter().next().unwrap_or("").parse().unwrap_or(200)
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};
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// println!("status code {}", status_code);
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let statusCode = match StatusCode::from_u16(status_code) {
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Ok(v) => {Ok(v)}
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Err(ioe) => {Err(io::Error::new(ErrorKind::Other, "Invalid HTTP status code"))}
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};
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let mut builder = HttpResponse::build(statusCode?);
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for (name, vec) in headers.iter() {
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for value in vec {
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// println!("entry : ({}, {})", name, value.clone());
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builder.header(name, value.clone());
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}
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}
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// println!("Write body...");
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let response = builder.streaming(ToStream(rdr));
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return Ok(response);
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}
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fn header(req: &HttpRequest, name: header::HeaderName) -> &str {
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req.headers()
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.get(name)
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.map(|value| value.to_str().unwrap_or_default())
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.unwrap_or_default()
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}
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