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use base64::Engine;
use base64::prelude::BASE64_STANDARD;
use chrono::{DateTime, Utc};
use ed25519_dalek::{Signer, SigningKey};
use rand::TryRng;
use rand::distr::{Alphanumeric, SampleString};
use rand::rngs::SysRng;
use std::fs::File;
use std::io;
use std::io::{BufReader, Read, Write};
use ureq::Error::StatusCode;
use ureq::SendBody;
use crate::config::{read_config, ClientConfig};
struct AuthExchange {
nonce: String,
timestamp: i64,
signature: String,
}
fn generate_nonce() -> String {
Alphanumeric.sample_string(&mut rand::rng(), 32)
}
fn create_auth(config: &ClientConfig) -> AuthExchange {
let mut buffer = [0u8; 44];
File::open(config.private_key.clone())
.expect("Failed to open private key file")
.read_exact(&mut buffer)
.expect("Failed to read private key file");
let decoded = BASE64_STANDARD
.decode(buffer)
.expect("Malformed private key");
let signing_key = SigningKey::from_bytes(&decoded.try_into().expect("Malformed private key"));
let nonce = generate_nonce();
let timestamp = Utc::now().timestamp();
let signature = BASE64_STANDARD.encode(
signing_key
.sign(format!("{}{}", nonce, timestamp).as_bytes())
.to_bytes(),
);
AuthExchange {
nonce,
timestamp,
signature,
}
}
pub fn gen_pubkey() {
let mut buffer = [0u8; 44];
io::stdin().read_exact(&mut buffer).unwrap();
let decoded = BASE64_STANDARD
.decode(buffer)
.expect("Malformed private key");
let signing_key = SigningKey::from_bytes(&decoded.try_into().expect("Malformed private key"));
let verifying_key = signing_key.verifying_key();
let encoded = BASE64_STANDARD.encode(verifying_key);
println!("{}", encoded);
}
pub fn gen_privkey() {
let mut seed = [0u8; 32];
SysRng
.try_fill_bytes(&mut seed)
.expect("Failed to generate random seed");
let signing_key = SigningKey::from_bytes(&seed);
let encoded = BASE64_STANDARD.encode(signing_key.to_bytes());
println!("{}", encoded);
}
pub fn upload_vault() {
let config: ClientConfig = read_config().expect("Failed to read config");
let server_url = &config.server_url;
let file = File::open(&config.db_path).expect("Failed to open database file");
let reader = BufReader::new(file);
let auth = create_auth(&config);
let code = ureq::post(format!("{}/vaults", server_url))
.content_type("application/x-keepass2")
.header("X-Signature", auth.signature)
.header("X-Nonce", auth.nonce)
.header("X-Timestamp", auth.timestamp)
.send(SendBody::from_owned_reader(reader))
.expect("Failed to send file")
.status();
if code == 200 {
println!("Successfully uploaded vault file");
} else {
println!("Failed to upload vault file: {}", code);
}
}
pub fn ls_vaults(long: bool) {
let config: ClientConfig = read_config().expect("Failed to read config");
let server_url = &config.server_url;
let auth = create_auth(&config);
let result = ureq::get(format!("{}/vaults", server_url))
.header("X-Signature", auth.signature)
.header("X-Nonce", auth.nonce)
.header("X-Timestamp", auth.timestamp)
.call()
.expect("Failed to get from server")
.body_mut()
.read_to_string()
.expect("Failed to read server response");
let files = result.split("\n");
for file in files {
if file.is_empty() {
break;
}
let mut parts = file.split("_");
let vault_id = parts.next().unwrap();
let timestamp: i64 = parts
.next()
.expect("Malformed response")
.parse()
.expect("Malformed response");
let dt = DateTime::from_timestamp(timestamp, 0).expect("Failed to parse timestamp");
if long {
println!(
"{} \t [Created: {}]",
vault_id,
dt.format("%m-%d-%Y %H:%M:%S")
);
} else {
println!(
"{} \t [Created: {}]",
&vault_id[0..8],
dt.format("%m-%d-%Y %H:%M:%S")
);
}
}
}
pub fn download_vault(id: String, install: bool, file: String) {
let config: ClientConfig = read_config().expect("Failed to read config");
let server_url = &config.server_url;
let auth = create_auth(&config);
let response = ureq::get(format!("{}/vaults/{}", server_url, id))
.header("X-Signature", auth.signature)
.header("X-Nonce", auth.nonce)
.header("X-Timestamp", auth.timestamp)
.call();
match response {
Ok(mut response) => {
let result = response
.body_mut()
.read_to_vec()
.expect("Failed to read server response");
let mut file = File::create(if install { config.db_path } else { file })
.expect("Failed to open database file");
file.write_all(&result)
.expect("Failed to write to database file");
}
Err(error) => match error {
StatusCode(stat) => {
if stat == 300 {
println!("There are multiple candidates available for download.");
println!("** Rerun the command with a long ID.")
} else {
println!("An internal server error occurred!");
}
}
_ => eprintln!("An error occurred: {}", error),
},
}
}
|
