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|
use der_parser::oid::Oid;
use nom::HexDisplay;
use std::cmp::min;
use std::env;
use std::io;
use x509_parser::prelude::*;
fn print_hex_dump(bytes: &[u8], max_len: usize) {
let m = min(bytes.len(), max_len);
print!("{}", &bytes[..m].to_hex(16));
if bytes.len() > max_len {
println!("... <continued>");
}
}
fn format_oid(oid: &Oid) -> String {
match oid2sn(oid, oid_registry()) {
Ok(s) => s.to_owned(),
_ => format!("{}", oid),
}
}
fn print_authority_key_identifier(aki: &AuthorityKeyIdentifier, level: usize) {
if let Some(id) = &aki.key_identifier {
println!("{:indent$}keyid: {:x}", "", id, indent = level);
}
if aki.authority_cert_issuer.is_some() {
unimplemented!();
}
if let Some(serial) = aki.authority_cert_serial {
let s = format_serial(serial);
println!("{:indent$}serial: {}", "", &s, indent = level);
}
}
fn print_x509_extension(oid: &Oid, ext: &X509Extension, level: usize) {
match ext.parsed_extension() {
ParsedExtension::CRLNumber(num) => {
println!("{:indent$}X509v3 CRL Number: {}", "", num, indent = level);
}
ParsedExtension::ReasonCode(code) => {
println!(
"{:indent$}X509v3 CRL Reason Code: {}",
"",
code,
indent = level
);
}
ParsedExtension::InvalidityDate(date) => {
println!("{:indent$}Invalidity Date: {}", "", date, indent = level);
}
ParsedExtension::AuthorityKeyIdentifier(aki) => {
println!(
"{:indent$}X509v3 Authority Key Identifier:",
"",
indent = level
);
print_authority_key_identifier(aki, level + 2);
}
x => {
print!("{:indent$}{}:", "", format_oid(oid), indent = level);
print!(" Critical={}", ext.critical);
print!(" len={}", ext.value.len());
println!();
println!(" {:indent$}{:?}", "", x, indent = level);
}
}
}
fn print_x509_digest_algorithm(alg: &AlgorithmIdentifier, level: usize) {
println!(
"{:indent$}Oid: {}",
"",
format_oid(&alg.algorithm),
indent = level
);
if let Some(parameter) = &alg.parameters {
println!(
"{:indent$}Parameter: <PRESENT> {:?}",
"",
parameter.tag(),
indent = level
);
let bytes = parameter.as_bytes();
print_hex_dump(bytes, 32);
} else {
println!("{:indent$}Parameter: <ABSENT>", "", indent = level);
}
}
fn print_revoked_certificate(revoked: &RevokedCertificate, level: usize) {
println!(
"{:indent$}Serial number: {}",
"",
revoked.raw_serial_as_string(),
indent = level
);
println!(
"{:indent$}Revocation Date: {}",
"",
revoked.revocation_date,
indent = level + 2
);
println!("{:indent$}CRL Extensions:", "", indent = level + 2);
for ext in revoked.extensions() {
print_x509_extension(&ext.oid, ext, level + 4);
}
}
fn print_crl_info(crl: &CertificateRevocationList) {
println!(" Version: {}", crl.version().unwrap_or(X509Version(0)));
// println!(" Subject: {}", crl.subject());
println!(" Signature Algorithm:");
print_x509_digest_algorithm(&crl.signature_algorithm, 4);
println!(" Issuer: {}", crl.issuer());
// println!(" Serial: {}", crl.tbs_certificate.raw_serial_as_string());
println!(" Last Update: {}", crl.last_update());
println!(
" Next Update: {}",
crl.next_update()
.map_or_else(|| "NONE".to_string(), |d| d.to_string())
);
println!("{:indent$}CRL Extensions:", "", indent = 2);
for ext in crl.extensions() {
print_x509_extension(&ext.oid, ext, 4);
}
println!(" Revoked certificates:");
for revoked in crl.iter_revoked_certificates() {
print_revoked_certificate(revoked, 4);
}
println!();
}
pub fn main() -> io::Result<()> {
for file_name in env::args().skip(1) {
// placeholder to store decoded PEM data, if needed
let tmpdata;
println!("File: {}", file_name);
let data = std::fs::read(file_name.clone()).expect("Unable to read file");
let der_data: &[u8] = if (data[0], data[1]) == (0x30, 0x82) {
// probably DER
&data
} else {
// try as PEM
let (_, data) = parse_x509_pem(&data).expect("Could not decode the PEM file");
tmpdata = data;
&tmpdata.contents
};
let (_, crl) = parse_x509_crl(der_data).expect("Could not decode DER data");
print_crl_info(&crl);
}
Ok(())
}
|
