38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
use base64::{Engine, engine::general_purpose::URL_SAFE_NO_PAD};
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use serde::{Deserialize, Serialize};
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use crate::errors::Result;
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#[inline]
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pub(crate) fn b64_encode<T: AsRef<[u8]>>(input: T) -> String {
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URL_SAFE_NO_PAD.encode(input)
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}
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#[inline]
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pub(crate) fn b64_decode<T: AsRef<[u8]>>(input: T) -> Result<Vec<u8>> {
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URL_SAFE_NO_PAD.decode(input).map_err(|e| e.into())
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}
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/// Serializes a struct to JSON and encodes it in base64
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pub(crate) fn b64_encode_part<T: Serialize>(input: &T) -> Result<String> {
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let json = serde_json::to_vec(input)?;
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Ok(b64_encode(json))
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}
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/// This is used to decode from base64 then deserialize from JSON to several structs:
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/// - The user-provided struct
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/// - The ClaimsForValidation struct from this crate to run validation on
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pub(crate) struct DecodedJwtPartClaims {
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b64_decoded: Vec<u8>,
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}
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impl DecodedJwtPartClaims {
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pub fn from_jwt_part_claims(encoded_jwt_part_claims: impl AsRef<[u8]>) -> Result<Self> {
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Ok(Self { b64_decoded: b64_decode(encoded_jwt_part_claims)? })
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}
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pub fn deserialize<'a, T: Deserialize<'a>>(&'a self) -> Result<T> {
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Ok(serde_json::from_slice(&self.b64_decoded)?)
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}
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}
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