start working on generalizing credential logic

This commit is contained in:
Joseph Montanaro 2024-06-16 07:08:10 -04:00
parent 0491cb5790
commit d0a2532c27
16 changed files with 1192 additions and 54 deletions

4
.gitignore vendored
View File

@ -5,7 +5,3 @@ src-tauri/target/
# .env is system-specific
.env
.vscode
# just in case
credentials*
!credentials.rs

590
src-tauri/Cargo.lock generated
View File

@ -27,6 +27,31 @@ dependencies = [
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@ -1219,6 +1298,18 @@ dependencies = [
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name = "platforms"
version = "3.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "626dec3cac7cc0e1577a2ec3fc496277ec2baa084bebad95bb6fdbfae235f84c"
[[package]]
name = "plist"
version = "1.5.0"
@ -3577,6 +3945,18 @@ dependencies = [
"universal-hash",
]
[[package]]
name = "polyval"
version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
dependencies = [
"cfg-if",
"cpufeatures",
"opaque-debug",
"universal-hash",
]
[[package]]
name = "powerfmt"
version = "0.2.0"
@ -3595,6 +3975,15 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
[[package]]
name = "primeorder"
version = "0.13.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "353e1ca18966c16d9deb1c69278edbc5f194139612772bd9537af60ac231e1e6"
dependencies = [
"elliptic-curve",
]
[[package]]
name = "proc-macro-crate"
version = "1.3.1"
@ -3753,6 +4142,15 @@ dependencies = [
"rand_core 0.5.1",
]
[[package]]
name = "raunch"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a67226789ccd419c55f5c826e04f7d58690b0593364f61bc8ed6e7dbbab49c5"
dependencies = [
"libc",
]
[[package]]
name = "raw-window-handle"
version = "0.5.2"
@ -3906,6 +4304,16 @@ dependencies = [
"winreg 0.52.0",
]
[[package]]
name = "rfc6979"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"
dependencies = [
"hmac",
"subtle",
]
[[package]]
name = "rfd"
version = "0.14.1"
@ -3944,6 +4352,27 @@ dependencies = [
"winapi",
]
[[package]]
name = "rsa"
version = "0.9.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5d0e5124fcb30e76a7e79bfee683a2746db83784b86289f6251b54b7950a0dfc"
dependencies = [
"const-oid",
"digest",
"num-bigint-dig",
"num-integer",
"num-traits",
"pkcs1",
"pkcs8",
"rand_core 0.6.4",
"sha2",
"signature 2.2.0",
"spki",
"subtle",
"zeroize",
]
[[package]]
name = "rustc-demangle"
version = "0.1.23"
@ -4089,6 +4518,20 @@ dependencies = [
"untrusted",
]
[[package]]
name = "sec1"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
dependencies = [
"base16ct",
"der",
"generic-array",
"pkcs8",
"subtle",
"zeroize",
]
[[package]]
name = "security-framework"
version = "2.9.2"
@ -4266,6 +4709,15 @@ dependencies = [
"syn 1.0.109",
]
[[package]]
name = "service-binding"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e5580e177917150862f941023eb13ff219acc59daefa42b76fa747612723402c"
dependencies = [
"raunch",
]
[[package]]
name = "servo_arc"
version = "0.1.1"
@ -4289,9 +4741,9 @@ dependencies = [
[[package]]
name = "sha2"
version = "0.10.7"
version = "0.10.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
dependencies = [
"cfg-if",
"cpufeatures",
@ -4322,6 +4774,16 @@ version = "1.6.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
[[package]]
name = "signature"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
dependencies = [
"digest",
"rand_core 0.6.4",
]
[[package]]
name = "simd-abstraction"
version = "0.7.1"
@ -4384,7 +4846,7 @@ version = "0.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e26be3acb6c2d9a7aac28482586a7856436af4cfe7100031d219de2d2ecb0028"
dependencies = [
"ed25519",
"ed25519 1.5.3",
"libc",
"libsodium-sys",
"serde",
@ -4455,6 +4917,16 @@ dependencies = [
"lock_api",
]
[[package]]
name = "spki"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
dependencies = [
"base64ct",
"der",
]
[[package]]
name = "sqlformat"
version = "0.2.2"
@ -4552,6 +5024,74 @@ dependencies = [
"tokio-rustls",
]
[[package]]
name = "ssh-agent-lib"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ae60055310a897706ffeffdd82cc8d5bb6ae8a50481157fb2407f579d404df1"
dependencies = [
"async-trait",
"byteorder",
"bytes",
"futures",
"log",
"serde",
"service-binding",
"tokio",
"tokio-util",
]
[[package]]
name = "ssh-cipher"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "caac132742f0d33c3af65bfcde7f6aa8f62f0e991d80db99149eb9d44708784f"
dependencies = [
"aes",
"aes-gcm",
"cbc",
"chacha20",
"cipher",
"ctr",
"poly1305",
"ssh-encoding",
"subtle",
]
[[package]]
name = "ssh-encoding"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "eb9242b9ef4108a78e8cd1a2c98e193ef372437f8c22be363075233321dd4a15"
dependencies = [
"base64ct",
"pem-rfc7468",
"sha2",
]
[[package]]
name = "ssh-key"
version = "0.6.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ca9b366a80cf18bb6406f4cf4d10aebfb46140a8c0c33f666a144c5c76ecbafc"
dependencies = [
"bcrypt-pbkdf",
"ed25519-dalek",
"num-bigint-dig",
"p256",
"p384",
"p521",
"rand_core 0.6.4",
"rsa",
"sec1",
"sha2",
"signature 2.2.0",
"ssh-cipher",
"ssh-encoding",
"subtle",
"zeroize",
]
[[package]]
name = "stable_deref_trait"
version = "1.2.0"
@ -6338,9 +6878,9 @@ dependencies = [
[[package]]
name = "zeroize"
version = "1.6.0"
version = "1.8.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
[[package]]
name = "zvariant"

View File

@ -50,6 +50,9 @@ time = "0.3.31"
tauri-plugin-single-instance = "2.0.0-beta.9"
tauri-plugin-global-shortcut = "2.0.0-beta.6"
rfd = "0.14.1"
ssh-agent-lib = "0.4.0"
ssh-key = { version = "0.6.6", features = ["rsa", "ed25519", "encryption"] }
signature = "2.2.0"
[features]
# by default Tauri runs in production mode

View File

@ -0,0 +1,11 @@
-- key-value store, will be used for various one-off values, serialized to bytes
CREATE TABLE kv (
name TEXT PRIMARY KEY,
value BLOB
);
-- config is currently stored in its own table, as text
INSERT INTO kv (name, value)
SELECT 'config', CAST(data AS BLOB) FROM config;
DROP TABLE config;

View File

@ -100,7 +100,7 @@ async fn setup(app: &mut App) -> Result<(), Box<dyn Error>> {
let mut conf = match AppConfig::load(&pool).await {
Ok(c) => c,
Err(SetupError::ConfigParseError(_)) => {
Err(LoadKvError::Invalid(_)) => {
setup_errors.push(
"Could not load configuration from database. Reverting to defaults.".into()
);

View File

@ -0,0 +1,7 @@
use creddy::server::ssh_agent;
#[tokio::main]
async fn main() {
ssh_agent::run().await;
}

13
src-tauri/src/bin/key.rs Normal file
View File

@ -0,0 +1,13 @@
use ssh_key::private::PrivateKey;
fn main() {
// let passphrase = std::env::var("PRIVKEY_PASSPHRASE").unwrap();
let p = AsRef::<std::path::Path>::as_ref("/home/joe/.ssh/test");
let privkey = PrivateKey::read_openssh_file(p)
.unwrap();
// .decrypt(passphrase.as_bytes())
// .unwrap();
dbg!(String::from_utf8_lossy(&privkey.to_bytes().unwrap()));
}

View File

@ -7,6 +7,7 @@ use serde::{Serialize, Deserialize};
use sqlx::SqlitePool;
use crate::errors::*;
use crate::kv;
#[derive(Clone, Debug, Serialize, Deserialize)]
@ -77,31 +78,16 @@ impl Default for AppConfig {
impl AppConfig {
pub async fn load(pool: &SqlitePool) -> Result<AppConfig, SetupError> {
let res = sqlx::query!("SELECT * from config where name = 'main'")
.fetch_optional(pool)
.await?;
pub async fn load(pool: &SqlitePool) -> Result<AppConfig, LoadKvError> {
let config = kv::load(pool, "config")
.await?
.unwrap_or_else(|| AppConfig::default());
let row = match res {
Some(row) => row,
None => return Ok(AppConfig::default()),
};
Ok(serde_json::from_str(&row.data)?)
Ok(config)
}
pub async fn save(&self, pool: &SqlitePool) -> Result<(), sqlx::error::Error> {
let data = serde_json::to_string(self).unwrap();
sqlx::query(
"INSERT INTO config (name, data) VALUES ('main', ?)
ON CONFLICT (name) DO UPDATE SET data = ?"
)
.bind(&data)
.bind(&data)
.execute(pool)
.await?;
Ok(())
kv::save(pool, "config", self).await
}
}

View File

@ -0,0 +1,174 @@
use serde::{
Serialize,
Deserialize,
Serializer,
Deserializer,
};
use sqlx::SqlitePool;
use super::{Crypto, PersistentCredential};
use crate::errors::*;
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(rename_all = "PascalCase")]
pub struct AwsBaseCredential {
#[serde(default = "default_credentials_version")]
pub version: usize,
pub access_key_id: String,
pub secret_access_key: String,
}
impl AwsBaseCredential {
pub fn new(access_key_id: String, secret_access_key: String) -> Self {
Self {version: 1, access_key_id, secret_access_key}
}
}
impl PersistentCredential for AwsBaseCredential {
pub async fn save(&self, crypt: &Crypto, pool: &SqlitePool) -> Result<(), SaveCredentialsError> {
let (nonce, ciphertext) = crypto.encrypt(self.secret_access_key.as_bytes())?;
sqlx::query!(
"INSERT INTO aws_credentials (
name,
key_id,
secret_key_enc,
nonce,
updated_at
)
VALUES ('main', ?, ?, ? strftime('%s'))
ON CONFLICT DO UPDATE SET
key_id = excluded.key_id,
secret_key_enc = excluded.secret_key_enc,
nonce = excluded.nonce
updated_at = excluded.updated_at",
self.access_key_id,
ciphertext,
nonce,
).execute(pool).await?;
Ok(())
}
pub async fn load(crypt: &Crypto, pool: &SqlitePool) -> Result<Self, LoadCredentialsError> {
let row = sqlx::query!("SELECT * FROM aws_credentials WHERE name = 'main'")
.fetch_optional(pool)
.await?
.ok_or(LoadCredentialsError::NoCredentials);
let secret_key = crypto.decrypt(&row.nonce, &row.secret_key_enc)?;
let creds = Self {
version: 1,
access_key_id: row.key_id,
secret_access_key: secret_key,
};
Ok(creds)
}
}
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(rename_all = "PascalCase")]
pub struct AwsSessionCredential {
#[serde(default = "default_credentials_version")]
pub version: usize,
pub access_key_id: String,
pub secret_access_key: String,
pub session_token: String,
#[serde(serialize_with = "serialize_expiration")]
#[serde(deserialize_with = "deserialize_expiration")]
pub expiration: DateTime,
}
impl AwsSessionCredential {
pub async fn from_base(base: &BaseCredentials) -> Result<Self, GetSessionError> {
let req_creds = aws_sdk_sts::Credentials::new(
&base.access_key_id,
&base.secret_access_key,
None, // token
None, //expiration
"Creddy", // "provider name" apparently
);
let config = aws_config::from_env()
.credentials_provider(req_creds)
.load()
.await;
let client = aws_sdk_sts::Client::new(&config);
let resp = client.get_session_token()
.duration_seconds(43_200)
.send()
.await?;
let aws_session = resp.credentials().ok_or(GetSessionError::EmptyResponse)?;
let access_key_id = aws_session.access_key_id()
.ok_or(GetSessionError::EmptyResponse)?
.to_string();
let secret_access_key = aws_session.secret_access_key()
.ok_or(GetSessionError::EmptyResponse)?
.to_string();
let session_token = aws_session.session_token()
.ok_or(GetSessionError::EmptyResponse)?
.to_string();
let expiration = aws_session.expiration()
.ok_or(GetSessionError::EmptyResponse)?
.clone();
let session_creds = SessionCredentials {
version: 1,
access_key_id,
secret_access_key,
session_token,
expiration,
};
#[cfg(debug_assertions)]
println!("Got new session:\n{}", serde_json::to_string(&session_creds).unwrap());
Ok(session_creds)
}
pub fn is_expired(&self) -> bool {
let current_ts = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap() // doesn't panic because UNIX_EPOCH won't be later than now()
.as_secs();
let expire_ts = self.expiration.secs();
let remaining = expire_ts - (current_ts as i64);
remaining < 60
}
}
struct DateTimeVisitor;
impl<'de> Visitor<'de> for DateTimeVisitor {
type Value = DateTime;
fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
write!(formatter, "an RFC 3339 UTC string, e.g. \"2014-01-05T10:17:34Z\"")
}
fn visit_str<E: de::Error>(self, v: &str) -> Result<DateTime, E> {
DateTime::from_str(v, Format::DateTime)
.map_err(|_| E::custom(format!("Invalid date/time: {v}")))
}
}
fn deserialize_expiration<'de, D>(deserializer: D) -> Result<DateTime, D::Error>
where D: Deserializer<'de>
{
deserializer.deserialize_str(DateTimeVisitor)
}
fn serialize_expiration<S>(exp: &DateTime, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer
{
// this only fails if the d/t is out of range, which it can't be for this format
let time_str = exp.fmt(Format::DateTime).unwrap();
serializer.serialize_str(&time_str)
}

View File

@ -0,0 +1,193 @@
use argon2::{
Argon2,
Algorithm,
Version,
ParamsBuilder,
password_hash::rand_core::{RngCore, OsRng},
};
use chacha20poly1305::{
XChaCha20Poly1305,
XNonce,
aead::{
Aead,
AeadCore,
KeyInit,
Error as AeadError,
generic_array::GenericArray,
},
};
use serde::{Serialize, Deserialize};
use sqlx::{FromRow, SqlitePool};
use crate::kv;
mod aws;
pub use aws::{AwsBaseCredential, AwsSessionCredential};
pub enum CredentialKind {
AwsBase,
AwsSession,
}
pub trait PersistentCredential {
async fn load(crypt: &Crypto, pool: &SqlitePool) -> Result<Self, LoadCredentialsError>;
async fn save(&self, crypt: &Crypto, pool: &SqlitePool) -> Result<(), SaveCredentialsError>;
}
#[derive(Debug, Clone)]
pub enum AppSession {
Unlocked {
salt: [u8; 32],
crypto: Crypto,
},
Locked {
salt: [u8; 32],
verify_nonce: XNonce,
verify_blob: Vec<u8>
},
Empty,
}
impl AppSession {
pub fn new(passphrase: &str) -> Result<Self, CryptoError> {
let salt = Crypto::salt();
let crypto = Crypto::new(passphrase, &salt);
Ok(Self::Unlocked {salt, crypto})
}
pub fn unlock(self, passphrase: &str) -> Result<Self, UnlockError> {
let (salt, nonce, blob) = match self {
Self::Empty => return Err(UnlockError::NoCredentials),
Self::Unlocked => return Err(UnlockError::NotLocked),
Self::Locked {salt, verify_nonce, verify_blob} => (salt, verify_nonce, verify_blob),
};
let crypto = Crypto::new(passphrase, salt)
.map_err(|e| CryptoError::Argon2(e))?;
// if passphrase is incorrect, this will fail
let verify = crypto.decrypt(&nonce, &blob)?;
Ok(Self::Unlocked{crypto, salt})
}
pub async fn load(pool: &SqlitePool) -> Result<Self, LoadKvError> {
match kv::load_bytes_multi!(pool, "salt", "verify_nonce", "verify_blob").await? {
Some((salt, verify_nonce, verify_blob)) => {
Ok(Self::Locked {salt, verify_nonce, verify_blob}),
},
None => Ok(Self::Empty),
}
}
pub async fn save(&self, pool: &SqlitePool) -> Result<(), LockError> {
let (salt, nonce, blob) = match self {
Self::Unlocked {salt, crypto} => {
let (nonce, blob) = crypto.encrypt(b"correct horse battery staple")
.map_err(|e| CryptoError::Aead(e))?;
(salt, nonce, blob)
},
Self::Locked {salt, verify_nonce, verify_blob} => (salt, verify_nonce, verify_blob),
// "saving" an empty session just means doing nothing
Self::Empty => return Ok(()),
};
kv::save(pool, "salt", salt).await?;
kv::save(pool, "verify_nonce", nonce).await?;
kv::save(pool, "verify_blob", blob).await?;
Ok(())
}
pub fn try_encrypt(&self, data: &[u8]) -> Result<(XNonce, Vec<u8>), CryptoError> {
let crypto = match self {
Self::Empty => Err(GetCredentialsError::Empty),
Self::Locked => Err(GetCredentialsError::Locked),
Self::Unlocked {crypto, ..} => crypto,
}?;
let res = crypto.encrypt(data)?;
Ok(res)
}
pub fn try_decrypt(&self, nonce: XNonce, data: &[u8]) -> Result<Vec<u8>, CryptoError> {
let crypto = match self {
Self::Empty => Err(GetCredentialsError::Empty),
Self::Locked => Err(GetCredentialsError::Locked),
Self::Unlocked {crypto, ..} => crypto,
}?;
let res = crypto.decrypt(nonce, data)?;
Ok(res)
}
}
pub struct Crypto {
cipher: XChaCha20Poly1305,
}
impl Crypto {
/// Argon2 params rationale:
///
/// m_cost is measured in KiB, so 128 * 1024 gives us 128MiB.
/// This should roughly double the memory usage of the application
/// while deriving the key.
///
/// p_cost is irrelevant since (at present) there isn't any parallelism
/// implemented, so we leave it at 1.
///
/// With the above m_cost, t_cost = 8 results in about 800ms to derive
/// a key on my (somewhat older) CPU. This is probably overkill, but
/// given that it should only have to happen ~once a day for most
/// usage, it should be acceptable.
#[cfg(not(debug_assertions))]
const MEM_COST: u32 = 128 * 1024;
#[cfg(not(debug_assertions))]
const TIME_COST: u32 = 8;
/// But since this takes a million years without optimizations,
/// we turn it way down in debug builds.
#[cfg(debug_assertions)]
const MEM_COST: u32 = 48 * 1024;
#[cfg(debug_assertions)]
const TIME_COST: u32 = 1;
fn new(passphrase: &str, salt: &[u8]) -> argon2::Result<Crypto> {
let params = ParamsBuilder::new()
.m_cost(Self::MEM_COST)
.p_cost(1)
.t_cost(Self::TIME_COST)
.build()
.unwrap(); // only errors if the given params are invalid
let hasher = Argon2::new(
Algorithm::Argon2id,
Version::V0x13,
params,
);
let mut key = [0; 32];
hasher.hash_password_into(passphrase.as_bytes(), &salt, &mut key)?;
let cipher = XChaCha20Poly1305::new(GenericArray::from_slice(&key));
Ok(Crypto { cipher })
}
fn salt() -> [u8; 32] {
let mut salt = [0; 32];
OsRng.fill_bytes(&mut salt);
salt
}
fn encrypt(&self, data: &[u8]) -> Result<(XNonce, Vec<u8>), AeadError> {
let nonce = XChaCha20Poly1305::generate_nonce(&mut OsRng);
let ciphertext = self.cipher.encrypt(&nonce, data)?;
Ok((nonce, ciphertext))
}
fn decrypt(&self, nonce: &XNonce, data: &[u8]) -> Result<Vec<u8>, AeadError> {
self.cipher.decrypt(nonce, data)
}
}

View File

@ -127,10 +127,10 @@ pub enum SetupError {
InvalidRecord, // e.g. wrong size blob for nonce or salt
#[error("Error from database: {0}")]
DbError(#[from] SqlxError),
#[error("Error loading data: {0}")]
KvError(#[from] LoadKvError),
#[error("Error running migrations: {0}")]
MigrationError(#[from] MigrateError),
#[error("Error parsing configuration from database")]
ConfigParseError(#[from] serde_json::Error),
#[error("Failed to set up start-on-login: {0}")]
AutoLaunchError(#[from] auto_launch::Error),
#[error("Failed to start listener: {0}")]
@ -251,6 +251,38 @@ pub enum LockError {
Setup(#[from] SetupError),
#[error(transparent)]
TauriError(#[from] tauri::Error),
#[error(transparent)]
Crypto(#[from] CryptoError),
}
#[derive(Debug, ThisError, AsRefStr)]
pub enum SaveCredentialsError {
#[error("Database error: {0}")]
DbError(#[from] SqlxError),
#[error("Encryption error: {0}")]
Encryption(#[from] chacha20poly1305::Error),
}
#[derive(Debug, ThisError, AsRefStr)]
pub enum LoadCredentialsError {
#[error("Database error: {0}")]
DbError(#[from] SqlxError),
#[error("Encryption error: {0}")]
Encryption(#[from] chacha20poly1305::Error),
#[error("Credentials not found")]
NoCredentials,
#[error("Could not decode credentials: {0}")]
Invalid(#[from] serde_json::Error),
}
#[derive(Debug, ThisError, AsRefStr)]
pub enum LoadKvError {
#[error("Database error: {0}")]
DbError(#[from] SqlxError),
#[error("Could not parse value from database: {0}")]
Invalid(#[from] serde_json::Error),
}

103
src-tauri/src/kv.rs Normal file
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@ -0,0 +1,103 @@
use serde::Serialize;
use serde::de::DeserializeOwned;
use sqlx::SqlitePool;
use crate::errors::*;
pub async fn save<T>(pool: &SqlitePool, name: &str, value: &T) -> Result<(), sqlx::Error>
where T: Serialize
{
let bytes = serde_json::to_vec(value).unwrap();
save_bytes(pool, name, &bytes).await
}
pub async fn save_bytes(pool: &SqlitePool, name: &str, bytes: &[u8]) -> Result<(), sqlx::Error> {
sqlx::query!(
"INSERT INTO kv (name, value) VALUES (?, ?)
ON CONFLICT(name) DO UPDATE SET value = excluded.value;",
name,
bytes,
).execute(pool).await?;
Ok(())
}
pub async fn load<T>(pool: &SqlitePool, name: &str) -> Result<Option<T>, LoadKvError>
where T: DeserializeOwned
{
let v = load_bytes(pool, name)
.await?
.map(|bytes| serde_json::from_slice(&bytes))
.transpose()?;
Ok(v)
}
pub async fn load_bytes(pool: &SqlitePool, name: &str) -> Result<Option<Vec<u8>>, sqlx::Error> {
sqlx::query!("SELECT name, value FROM kv WHERE name = ?", name)
.map(|row| row.value)
.fetch_optional(pool)
.await
.map(|o| o.flatten())
}
// pub async fn load_bytes_multi<const N: usize>(
// pool: &SqlitePool,
// names: [&str; N],
// ) -> Result<Option<[Vec<u8>; N]>, sqlx::Error> {
// // just use multiple queries, who cares
// let res: [Vec<u8>; N] = Default::default();
// for (i, name) in names.as_slice().iter().enumerate() {
// match load_bytes(pool, name).await? {
// Some(bytes) => res[i] = bytes,
// None => return Ok(None),
// }
// }
// Ok(res);
// }
macro_rules! load_bytes_multi {
(
$pool:ident,
$($name:literal),*
) => {
// wrap everything up in an immediately-invoked closure for easy short-circuiting
(|| {
// a tuple, with one item for each repetition of $name
(
// repeat this match block for every name
$(
// load_bytes returns Result<Option<_>>, the Result is handled by
// the ? and we match on the Option
match load_bytes(pool, $name)? {
Some(v) => v,
None => return Ok(None)
},
)*
)
})()
}
}
// macro_rules! load_multi {
// (
// $pool:ident,
// $($name:literal),*
// ) => {
// (|| {
// (
// $(
// match load(pool, $name)? {
// Some(v) => v,
// None => return Ok(None)
// },
// )*
// )
// })()
// }
// }

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@ -5,8 +5,9 @@ mod credentials;
pub mod errors;
mod clientinfo;
mod ipc;
mod kv;
mod state;
mod server;
pub mod server;
mod shortcuts;
mod terminal;
mod tray;

View File

@ -26,6 +26,8 @@ pub use server_unix::Server;
#[cfg(unix)]
use server_unix::Stream;
pub mod ssh_agent;
#[derive(Serialize, Deserialize)]
pub enum Request {

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@ -0,0 +1,77 @@
use signature::Signer;
use ssh_agent_lib::agent::{Agent, Session};
use ssh_agent_lib::proto::message::Message;
use ssh_key::public::PublicKey;
use ssh_key::private::PrivateKey;
use tokio::net::UnixListener;
struct SshAgent;
impl std::default::Default for SshAgent {
fn default() -> Self {
SshAgent {}
}
}
#[ssh_agent_lib::async_trait]
impl Session for SshAgent {
async fn handle(&mut self, message: Message) -> Result<Message, Box<dyn std::error::Error>> {
println!("Received message");
match message {
Message::RequestIdentities => {
let p = std::path::PathBuf::from("/home/joe/.ssh/id_ed25519.pub");
let pubkey = PublicKey::read_openssh_file(&p).unwrap();
let id = ssh_agent_lib::proto::message::Identity {
pubkey_blob: pubkey.to_bytes().unwrap(),
comment: pubkey.comment().to_owned(),
};
Ok(Message::IdentitiesAnswer(vec![id]))
},
Message::SignRequest(req) => {
println!("Received sign request");
let mut req_bytes = vec![13];
encode_string(&mut req_bytes, &req.pubkey_blob);
encode_string(&mut req_bytes, &req.data);
req_bytes.extend(req.flags.to_be_bytes());
std::fs::File::create("/tmp/signreq").unwrap().write(&req_bytes).unwrap();
let p = std::path::PathBuf::from("/home/joe/.ssh/id_ed25519");
let passphrase = std::env::var("PRIVKEY_PASSPHRASE").unwrap();
let privkey = PrivateKey::read_openssh_file(&p)
.unwrap()
.decrypt(passphrase.as_bytes())
.unwrap();
let sig = Signer::sign(&privkey, &req.data);
use std::io::Write;
std::fs::File::create("/tmp/sig").unwrap().write(sig.as_bytes()).unwrap();
let mut payload = Vec::with_capacity(128);
encode_string(&mut payload, "ssh-ed25519".as_bytes());
encode_string(&mut payload, sig.as_bytes());
println!("Payload length: {}", payload.len());
std::fs::File::create("/tmp/payload").unwrap().write(&payload).unwrap();
Ok(Message::SignResponse(payload))
},
_ => Ok(Message::Failure),
}
}
}
fn encode_string(buf: &mut Vec<u8>, s: &[u8]) {
let len = s.len() as u32;
buf.extend(len.to_be_bytes());
buf.extend(s);
}
pub async fn run() {
let socket = "/tmp/creddy-agent.sock";
let _ = std::fs::remove_file(socket);
let listener = UnixListener::bind(socket).unwrap();
SshAgent.listen(listener).await.unwrap();
}