96 lines
3.5 KiB
Rust
96 lines
3.5 KiB
Rust
use anyhow::Result;
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use ed25519_dalek::SigningKey;
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use lazy_static::lazy_static;
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use log::{info, warn};
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use sha2::{Digest, Sha256};
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use std::{fs::File, io::Read, io::Write};
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pub(crate) const DETEE_ROOT_CA: &str = "/etc/detee/root_ca.pem";
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pub(crate) const BRAIN_STAGING: (&str, &str) = ("https://159.65.58.38:31337", "staging-brain");
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pub(crate) const BRAIN_TESTING: (&str, &str) = ("https://164.92.249.180:31337", "testnet-brain");
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pub(crate) const VM_BOOT_DIR: &str = "/var/lib/detee/boot/";
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pub(crate) const USED_RESOURCES: &str = "/etc/detee/daemon/used_resources.yaml";
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pub(crate) const VM_CONFIG_DIR: &str = "/etc/detee/daemon/vms/";
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pub(crate) const SECRET_KEY_PATH: &str = "/etc/detee/daemon/node_secret_key.pem";
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pub(crate) const DAEMON_CONFIG_PATH: &str = "/etc/detee/daemon/config.yaml";
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pub(crate) const START_VM_SCRIPT: &str = "/usr/local/bin/detee/start_qemu_vm.sh";
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// TODO: research if other CPU types provide better performance
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pub(crate) const QEMU_VM_CPU_TYPE: &str = "EPYC-v4";
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// If you modify this, also modify scripts/start_qemu_vm.sh
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pub(crate) const OVMF_HASH: &str =
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"0346619257269b9a61ee003e197d521b8e2283483070d163a34940d6a1d40d76";
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pub(crate) const OVMF_URL: &str =
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"https://drive.google.com/uc?export=download&id=1V-vLkaiLaGmFSjrN84Z6nELQOxKNAoSJ";
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lazy_static! {
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pub static ref PUBLIC_KEY: String = get_public_key();
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pub static ref IP_INFO: IPInfo = get_ip_info().unwrap();
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}
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fn create_secret_key() -> Result<ed25519_dalek::SigningKey> {
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let key_path = SECRET_KEY_PATH;
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info!("Creating new secret key at {}", key_path);
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let sk = ed25519_dalek::SigningKey::generate(&mut rand_core::OsRng);
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let private_key_string = bs58::encode(sk.to_bytes()).into_string();
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let mut file = File::create(key_path)?;
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file.write_all(private_key_string.as_bytes())?;
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Ok(sk)
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}
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fn load_secret_key() -> Result<ed25519_dalek::SigningKey> {
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let secret_key_string = match std::fs::read_to_string(SECRET_KEY_PATH) {
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Ok(secret_key_pem) => secret_key_pem,
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Err(e) => {
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warn!("Could not load secret key due to error: {e:?}");
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return Ok(create_secret_key()?);
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}
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};
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Ok(SigningKey::from_bytes(
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&bs58::decode(secret_key_string)
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.into_vec()?
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.try_into()
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.map_err(|_| bs58::decode::Error::BufferTooSmall)?,
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))
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}
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pub fn sign_message(msg: &str) -> Result<String> {
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use ed25519_dalek::Signer;
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let key = load_secret_key()?;
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Ok(bs58::encode(key.sign(msg.as_bytes()).to_bytes()).into_string())
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}
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pub fn get_public_key() -> String {
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let pubkey = bs58::encode(load_secret_key().unwrap().verifying_key().to_bytes()).into_string();
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log::info!("Loaded the following public key: {pubkey}");
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pubkey
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}
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#[derive(serde::Deserialize, Clone)]
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pub struct IPInfo {
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pub country: String,
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pub region: String,
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pub city: String,
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pub ip: String,
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}
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fn get_ip_info() -> anyhow::Result<IPInfo> {
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let body = reqwest::blocking::get("https://ipinfo.io/".to_string())?.text()?;
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info!("Got the following data from ipinfo.io: {body}");
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Ok(serde_json::de::from_str(&body)?)
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}
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pub fn compute_sha256<P: AsRef<std::path::Path>>(path: P) -> Result<String> {
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let mut file = File::open(path)?;
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let mut hasher = Sha256::new();
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let mut buffer = [0u8; 8192];
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loop {
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let bytes_read = file.read(&mut buffer)?;
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if bytes_read == 0 {
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break;
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}
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hasher.update(&buffer[..bytes_read]);
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}
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let result = hasher.finalize();
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Ok(format!("{:x}", result))
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}
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