1//! Provides the SASL "ANONYMOUS" mechanism.
 2
 3use crate::client::{Mechanism, MechanismError};
 4use crate::common::{Credentials, Secret};
 5
 6/// A struct for the SASL ANONYMOUS mechanism.
 7pub struct Anonymous;
 8
 9impl Anonymous {
10    /// Constructs a new struct for authenticating using the SASL ANONYMOUS mechanism.
11    ///
12    /// It is recommended that instead you use a `Credentials` struct and turn it into the
13    /// requested mechanism using `from_credentials`.
14    #[allow(clippy::new_without_default)]
15    pub fn new() -> Anonymous {
16        Anonymous
17    }
18}
19
20impl Mechanism for Anonymous {
21    fn name(&self) -> &str {
22        "ANONYMOUS"
23    }
24
25    fn from_credentials(credentials: Credentials) -> Result<Anonymous, MechanismError> {
26        if let Secret::None = credentials.secret {
27            Ok(Anonymous)
28        } else {
29            Err(MechanismError::AnonymousRequiresNoCredentials)
30        }
31    }
32}