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use crate::error::{MechanismError, MechanismErrorKind};
use crate::mechanism::Authentication;
use crate::property::AuthId;
use crate::session::Step::Done;
use crate::session::{SessionData, StepResult};
use crate::validate::validations::EXTERNAL;
use std::fmt::{Display, Formatter};
use std::io::Write;
use std::sync::Arc;
#[derive(Debug, Eq, PartialEq, Copy, Clone)]
pub struct ParseError;
impl Display for ParseError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
f.write_str("the given external token is invalid UTF-8")
}
}
impl MechanismError for ParseError {
fn kind(&self) -> MechanismErrorKind {
MechanismErrorKind::Parse
}
}
#[derive(Copy, Clone, Debug)]
pub struct External;
impl Authentication for External {
fn step(
&mut self,
session: &mut SessionData,
input: Option<&[u8]>,
_writer: &mut dyn Write,
) -> StepResult {
if let Some(input) = input {
if let Ok(authid) = std::str::from_utf8(input) {
session.set_property::<AuthId>(Arc::new(authid.to_string()));
} else {
return Err(ParseError.into());
}
}
session.validate(EXTERNAL)?;
Ok(Done(None))
}
}