git_http_backend/actix/
refs.rs

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use std::process::Command;
use actix_web::http::header::HeaderValue;
use actix_web::http::StatusCode;
use actix_web::{web, HttpRequest, HttpResponseBuilder, Responder};
use tracing::info;
use crate::actix::handler::ActixGitHttp;

pub async fn info_refs(request: HttpRequest, service: web::Data<ActixGitHttp>) -> impl Responder {
    let uri = request.uri();
    let path = uri.path().to_string().replace("/info/refs","");
    let path = service.rewrite(path);
    let query = uri.query().unwrap_or("");
    let service = query.split('=').map(|x|x.to_string()).collect::<Vec<_>>();
    let service = service[1].clone();
    if !(service != "git-upload-pack" || service != "git-receive-pack"){
        return Err(actix_web::error::ErrorUnsupportedMediaType("service not git-upload-pack"));
    }
    let service_name = service.replace("git-", "");
    let version = request.headers().get("Git-Protocol").unwrap_or(&HeaderValue::from_str("").unwrap()).to_str().map(|s| s.to_string()).unwrap_or("".to_string());
    let mut cmd = Command::new("git");
    cmd.arg(service_name.clone());
    cmd.arg("--stateless-rpc");
    cmd.arg("--advertise-refs");
    cmd.arg(".");
    cmd.current_dir(path);
    if !version.is_empty() {
        cmd.env("GIT_PROTOCOL", version.clone());
    }

    let output = match cmd.output() {
        Ok(output) =>{
            info!("Command status: {:?}", output.status);
            output
        },
        Err(e) => {
            eprintln!("Error running command: {}", e);
            return Err(actix_web::error::ErrorInternalServerError("Error running command"));
        }
    };
    let mut resp = HttpResponseBuilder::new(StatusCode::OK);
    resp.append_header(("Content-Type", format!("application/x-git-{}-advertisement", service_name)));
    resp.append_header(("Pragma","no-cache"));
    resp.append_header(("Cache-Control","no-cache, max-age=0, must-revalidate"));
    resp.append_header(("Expires","Fri, 01 Jan 1980 00:00:00 GMT"));

    let mut body = String::new();

    match service_name.as_str() {
        "upload-pack" => {
            body.push_str(&"001e# service=git-upload-pack\n".to_string());
            body.push_str("0000");
        },
        "receive-pack" => {
            body.push_str(&"001f# service=git-receive-pack\n".to_string());
            body.push_str("0000");
        },
        _ => {}
    }
    body.push_str(&String::from_utf8(output.stdout).unwrap());
    Ok(resp.body(body.as_bytes().to_vec()))
}