105 lines
3.2 KiB
Rust
105 lines
3.2 KiB
Rust
use clap::{load_yaml, App};
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use ed25519_dalek::{Keypair, PublicKey, SecretKey};
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use json::{object, JsonValue};
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use rand::rngs::OsRng;
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use regex::Regex;
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use std::fs::File;
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use std::path::PathBuf;
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use std::io::prelude::*;
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trait SSBKeypair {
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fn to_json(&self) -> JsonValue;
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fn from_json(obj: JsonValue) -> Self;
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fn read_or_generate(path: PathBuf) -> Self;
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}
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impl SSBKeypair for Keypair {
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fn to_json(&self) -> JsonValue {
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let pubstring = base64::encode(self.public.to_bytes());
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let privstring = base64::encode([self.secret.to_bytes(), self.public.to_bytes()].concat());
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object! {
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curve: "ed25519",
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public: format!("{}.ed25519", pubstring),
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private: format!("{}.ed25519", privstring),
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id: format!("@{}.ed25519", pubstring)
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}
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}
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fn from_json(obj: JsonValue) -> Self {
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if obj["curve"].as_str().unwrap() != "ed25519" {
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panic!("wrong curve");
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}
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let pubkey = obj["public"]
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.as_str()
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.unwrap()
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.strip_suffix(".ed25519")
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.unwrap();
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let pubkey = base64::decode(pubkey).unwrap();
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let pubkey = PublicKey::from_bytes(pubkey.as_slice()).unwrap();
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let privkey = obj["private"]
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.as_str()
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.unwrap()
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.strip_suffix(".ed25519")
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.unwrap();
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let privkey = base64::decode(privkey).unwrap();
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let privkey = SecretKey::from_bytes(&privkey[00..32]).unwrap();
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Keypair {
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public: pubkey,
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secret: privkey,
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}
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}
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fn read_or_generate(path: PathBuf) -> Self {
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if path.exists() {
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let mut secret_file = File::open(path).unwrap();
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let mut secret = String::new();
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secret_file.read_to_string(&mut secret).unwrap();
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let re = Regex::new(r"\s*#[^\n]*").unwrap();
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let secret = re.replace_all(secret.as_str(), "");
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SSBKeypair::from_json(json::parse(&secret).unwrap())
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} else {
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let mut csprng = OsRng {};
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Keypair::generate(&mut csprng)
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// TODO: write this keypair to a fresh secret file
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}
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}
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}
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type Config = toml::map::Map<String, toml::Value>;
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fn read_config(path: PathBuf) -> Config {
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let mut file = File::open(path).unwrap();
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let mut content = String::new();
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file.read_to_string(&mut content).unwrap();
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toml::from_str(content.as_str()).unwrap()
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}
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fn main() {
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let options = load_yaml!("options.yaml");
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let options = App::from(options).get_matches();
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let config_file = match options.value_of("config") {
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Some(path) => PathBuf::from(path),
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None => dirs::config_dir()
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.unwrap()
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.join("cosmoline")
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.join("config.toml"),
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};
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let config = read_config(config_file);
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let path = match options.value_of("path") {
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Some(path) => PathBuf::from(path),
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None => match config.get("path") {
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Some(path) => PathBuf::from(path.as_str().unwrap()),
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None => dirs::home_dir().unwrap().join(".cosmoline"),
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},
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};
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let keypair = Keypair::read_or_generate(path.join("secret"));
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println!("{}", keypair.to_json().pretty(2));
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}
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