81 lines
2.8 KiB
Rust
81 lines
2.8 KiB
Rust
use std::borrow::Cow;
|
|
|
|
use serde::ser::Serialize;
|
|
|
|
use crate::crypto;
|
|
use crate::errors::Result;
|
|
use crate::header::Header;
|
|
use crate::pem::decoder::PemEncodedKey;
|
|
use crate::serialization::b64_encode_part;
|
|
|
|
/// A key to encode a JWT with. Can be a secret, a PEM-encoded key or a DER-encoded key.
|
|
/// This key can be re-used so make sure you only initialize it once if you can for better performance
|
|
#[derive(Debug, Clone, PartialEq)]
|
|
pub struct EncodingKey<'a> {
|
|
content: Cow<'a, [u8]>,
|
|
}
|
|
|
|
impl<'a> EncodingKey<'a> {
|
|
/// If you're using HMAC, use that.
|
|
pub fn from_secret(secret: &'a [u8]) -> Self {
|
|
EncodingKey { content: Cow::Borrowed(secret) }
|
|
}
|
|
|
|
/// If you are loading a RSA key from a .pem file.
|
|
/// This errors if the key is not a valid RSA key.
|
|
pub fn from_rsa_pem(key: &'a [u8]) -> Result<Self> {
|
|
let pem_key = PemEncodedKey::new(key)?;
|
|
let content = pem_key.as_rsa_key()?;
|
|
Ok(EncodingKey { content: Cow::Owned(content.to_vec()) })
|
|
}
|
|
|
|
/// If you are loading a ECDSA key from a .pem file
|
|
/// This errors if the key is not a valid private EC key
|
|
pub fn from_ec_pem(key: &'a [u8]) -> Result<Self> {
|
|
let pem_key = PemEncodedKey::new(key)?;
|
|
let content = pem_key.as_ec_private_key()?;
|
|
Ok(EncodingKey { content: Cow::Owned(content.to_vec()) })
|
|
}
|
|
|
|
/// If you know what you're doing and have the DER-encoded key, for RSA or ECDSA
|
|
pub fn from_der(der: &'a [u8]) -> Self {
|
|
EncodingKey { content: Cow::Borrowed(der) }
|
|
}
|
|
|
|
/// Access the key, normal users do not need to use that.
|
|
pub(crate) fn inner(&'a self) -> &'a [u8] {
|
|
&self.content
|
|
}
|
|
}
|
|
|
|
/// Encode the header and claims given and sign the payload using the algorithm from the header and the key.
|
|
/// If the algorithm given is RSA or EC, the key needs to be in the PEM format.
|
|
///
|
|
/// ```rust
|
|
/// use serde::{Deserialize, Serialize};
|
|
/// use jsonwebtoken::{encode, Algorithm, Header, EncodingKey};
|
|
///
|
|
/// #[derive(Debug, Serialize, Deserialize)]
|
|
/// struct Claims {
|
|
/// sub: String,
|
|
/// company: String
|
|
/// }
|
|
///
|
|
/// let my_claims = Claims {
|
|
/// sub: "b@b.com".to_owned(),
|
|
/// company: "ACME".to_owned()
|
|
/// };
|
|
///
|
|
/// // my_claims is a struct that implements Serialize
|
|
/// // This will create a JWT using HS256 as algorithm
|
|
/// let token = encode(&Header::default(), &my_claims, &EncodingKey::from_secret("secret".as_ref())).unwrap();
|
|
/// ```
|
|
pub fn encode<T: Serialize>(header: &Header, claims: &T, key: &EncodingKey) -> Result<String> {
|
|
let encoded_header = b64_encode_part(&header)?;
|
|
let encoded_claims = b64_encode_part(&claims)?;
|
|
let message = [encoded_header.as_ref(), encoded_claims.as_ref()].join(".");
|
|
let signature = crypto::sign(&*message, key, header.alg)?;
|
|
|
|
Ok([message, signature].join("."))
|
|
}
|