rpki/src/bin/ccr_to_compare_views.rs

125 lines
4.0 KiB
Rust

use rpki::bundle::{decode_ccr_compare_views, write_vap_csv, write_vrp_csv};
use rpki::ccr::decode_content_info;
#[derive(Debug, Default, PartialEq, Eq)]
struct Args {
ccr_path: Option<std::path::PathBuf>,
vrps_out_path: Option<std::path::PathBuf>,
vaps_out_path: Option<std::path::PathBuf>,
trust_anchor: String,
}
fn usage() -> &'static str {
"Usage: ccr_to_compare_views --ccr <path> --vrps-out <path> --vaps-out <path> [--trust-anchor <name>]"
}
fn parse_args(argv: &[String]) -> Result<Args, String> {
let mut args = Args {
trust_anchor: "unknown".to_string(),
..Args::default()
};
let mut i = 1usize;
while i < argv.len() {
match argv[i].as_str() {
"--ccr" => {
i += 1;
let v = argv.get(i).ok_or("--ccr requires a value")?;
args.ccr_path = Some(v.into());
}
"--vrps-out" => {
i += 1;
let v = argv.get(i).ok_or("--vrps-out requires a value")?;
args.vrps_out_path = Some(v.into());
}
"--vaps-out" => {
i += 1;
let v = argv.get(i).ok_or("--vaps-out requires a value")?;
args.vaps_out_path = Some(v.into());
}
"--trust-anchor" => {
i += 1;
let v = argv.get(i).ok_or("--trust-anchor requires a value")?;
args.trust_anchor = v.clone();
}
"-h" | "--help" => return Err(usage().to_string()),
other => return Err(format!("unknown argument: {other}\n{}", usage())),
}
i += 1;
}
if args.ccr_path.is_none() {
return Err(format!("--ccr is required\n{}", usage()));
}
if args.vrps_out_path.is_none() {
return Err(format!("--vrps-out is required\n{}", usage()));
}
if args.vaps_out_path.is_none() {
return Err(format!("--vaps-out is required\n{}", usage()));
}
Ok(args)
}
fn main() -> Result<(), String> {
let args = parse_args(&std::env::args().collect::<Vec<_>>())?;
let ccr_path = args.ccr_path.as_ref().unwrap();
let bytes = std::fs::read(ccr_path)
.map_err(|e| format!("read ccr failed: {}: {e}", ccr_path.display()))?;
let content_info = decode_content_info(&bytes).map_err(|e| e.to_string())?;
let (vrps, vaps) =
decode_ccr_compare_views(&content_info, &args.trust_anchor).map_err(|e| e.to_string())?;
write_vrp_csv(args.vrps_out_path.as_ref().unwrap(), &vrps)?;
write_vap_csv(args.vaps_out_path.as_ref().unwrap(), &vaps)?;
println!(
"{}\n{}",
args.vrps_out_path.as_ref().unwrap().display(),
args.vaps_out_path.as_ref().unwrap().display()
);
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn parse_args_accepts_required_flags() {
let argv = vec![
"ccr_to_compare_views".to_string(),
"--ccr".to_string(),
"a.ccr".to_string(),
"--vrps-out".to_string(),
"vrps.csv".to_string(),
"--vaps-out".to_string(),
"vaps.csv".to_string(),
"--trust-anchor".to_string(),
"apnic".to_string(),
];
let args = parse_args(&argv).expect("parse args");
assert_eq!(
args.ccr_path.as_deref(),
Some(std::path::Path::new("a.ccr"))
);
assert_eq!(
args.vrps_out_path.as_deref(),
Some(std::path::Path::new("vrps.csv"))
);
assert_eq!(
args.vaps_out_path.as_deref(),
Some(std::path::Path::new("vaps.csv"))
);
assert_eq!(args.trust_anchor, "apnic");
}
#[test]
fn parse_args_rejects_missing_required_flags() {
let argv = vec![
"ccr_to_compare_views".to_string(),
"--ccr".to_string(),
"a.ccr".to_string(),
"--vrps-out".to_string(),
"vrps.csv".to_string(),
];
let err = parse_args(&argv).unwrap_err();
assert!(err.contains("--vaps-out is required"), "{err}");
}
}