libwebauthn 0.5.1

FIDO2 (WebAuthn) and FIDO U2F platform library for Linux written in Rust
Documentation 
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use crate::proto::error::CtapError;

use std::convert::{TryFrom, TryInto};
use std::io::{Error as IOError, ErrorKind as IOErrorKind};
use tracing::error;

#[derive(Debug, Clone)]
pub struct CborResponse {
    pub status_code: CtapError,
    pub data: Option<Vec<u8>>,
}

impl CborResponse {
    pub fn new_success_from_slice(slice: &[u8]) -> Self {
        Self {
            status_code: CtapError::Ok,
            data: match slice.len() {
                0 => None,
                _ => Some(Vec::from(slice)),
            },
        }
    }
}

impl TryFrom<&Vec<u8>> for CborResponse {
    type Error = IOError;
    fn try_from(packet: &Vec<u8>) -> Result<Self, Self::Error> {
        let (status_byte, body) = packet.split_first().ok_or_else(|| {
            IOError::new(
                IOErrorKind::InvalidData,
                "Cbor response packets must contain at least 1 byte.",
            )
        })?;

        let Ok(status_code) = (*status_byte).try_into() else {
            error!({ code = ?*status_byte }, "Invalid CTAP error code");
            return Err(IOError::new(
                IOErrorKind::InvalidData,
                format!("Invalid CTAP error code: {:x}", status_byte),
            ));
        };

        let data = if body.is_empty() {
            None
        } else {
            Some(Vec::from(body))
        };
        Ok(CborResponse { status_code, data })
    }
}