src/bin/proxmox-backup-manager.rs: impl. cert info

src/bin/proxmox-backup-manager.rs

@@ -265,6 +265,59 @@ fn task_mgmt_cli() -> CommandLineInterface {
     cmd_def.into()
 }
 
+fn x509name_to_string(name: &openssl::x509::X509NameRef) -> Result<String, Error> {
+    let mut parts = Vec::new();
+    for entry in name.entries() {
+        parts.push(format!("{} = {}", entry.object().nid().short_name()?, entry.data().as_utf8()?));
+    }
+    Ok(parts.join(", "))
+}
+
+#[api]
+/// Diplay node certificate information.
+fn cert_info() -> Result<(), Error> {
+
+    let cert_path = PathBuf::from(configdir!("/proxy.pem"));
+
+    let cert_pem = proxmox::tools::fs::file_get_contents(&cert_path)?;
+
+    let cert = openssl::x509::X509::from_pem(&cert_pem)?;
+
+    println!("Subject: {}", x509name_to_string(cert.subject_name())?);
+
+    if let Some(san) = cert.subject_alt_names() {
+        for name in san.iter() {
+            if let Some(v) = name.dnsname() {
+                println!("    DNS:{}", v);
+            } else if let Some(v) = name.ipaddress() {
+                println!("    IP:{:?}", v);
+            } else if let Some(v) = name.email() {
+                println!("    EMAIL:{}", v);
+            } else if let Some(v) = name.uri() {
+                println!("    URI:{}", v);
+            }
+        }
+    }
+
+    println!("Issuer: {}", x509name_to_string(cert.issuer_name())?);
+    println!("Validity:");
+    println!("    Not Before: {}", cert.not_before());
+    println!("    Not After : {}", cert.not_after());
+
+    let fp = cert.digest(openssl::hash::MessageDigest::sha256())?;
+    let fp_string = proxmox::tools::digest_to_hex(&fp);
+    let fp_string = fp_string.as_bytes().chunks(2).map(|v| std::str::from_utf8(v).unwrap())
+        .collect::<Vec<&str>>().join(":");
+
+    println!("Fingerprint (sha256): {}", fp_string);
+
+    let pubkey = cert.public_key()?;
+    println!("Public key type: {}", openssl::nid::Nid::from_raw(pubkey.id().as_raw()).long_name()?);
+    println!("Public key bits: {}", pubkey.bits());
+
+    Ok(())
+}
+
 #[api(
     input: {
         properties: {
@@ -408,10 +461,9 @@ fn update_certs(force: Option<bool>) -> Result<(), Error> {
 
 fn cert_mgmt_cli() -> CommandLineInterface {
 
-    let update_cert_cmd_def = CliCommand::new(&API_METHOD_UPDATE_CERTS);
-
     let cmd_def = CliCommandMap::new()
-        .insert("update", update_cert_cmd_def);
+        .insert("info", CliCommand::new(&API_METHOD_CERT_INFO))
+        .insert("update", CliCommand::new(&API_METHOD_UPDATE_CERTS));
 
     cmd_def.into()
 }