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//! Builder for Auth0.
use std::error::Error;
use std::fmt::{Display, Formatter};
use reqwest::Client;
use crate::rate::RateLimit;
use crate::token::TokenManager;
use crate::{Auth0, Auth0Client};
/// Management client interface.
pub struct Auth0Builder {
domain: Option<String>,
audience: Option<String>,
client_id: Option<String>,
client_secret: Option<String>,
}
impl Auth0Builder {
/// Get instance of management client builder.
pub fn new() -> Self {
Default::default()
}
/// Get instance of management client.
///
/// Creates instance of management client and validates builder options. Valid builder options
/// requires all fields to be populated.
pub fn build(self) -> Result<Auth0, Auth0BuilderError> {
let client = Client::new();
let domain = self.domain.ok_or(Auth0BuilderError::MissingDomain)?;
let audience = self.audience.ok_or(Auth0BuilderError::MissingAudience)?;
let client_id = self.client_id.ok_or(Auth0BuilderError::MissingClientID)?;
let client_secret = self
.client_secret
.ok_or(Auth0BuilderError::MissingClientSecret)?;
let client = Auth0Client::new(
RateLimit::new(),
TokenManager::new(
client.clone(),
&domain,
&audience,
&client_id,
&client_secret,
),
client,
&domain,
);
Ok(Auth0::new(client))
}
/// The auth0 tenant domain.
///
/// The domain can be found in the Auth0 dashboard under your application settings. Domain
/// will be the field labeled `Domain`. Domains will be typically formatted as
/// `example.[us|eu|au].auth0.com`.
pub fn domain(mut self, domain: &str) -> Self {
self.domain = Some(domain.to_owned());
self
}
/// The value of the Identifier field of the `Auth0 Management API`.
///
/// The audience can be found in the Auth0 dashboard under you `API` settings. Audience will be
/// in the field labeled `Identifier`. The default management API identifier will be formatted as
/// `https://example.eu.auth0.com/api/v2`
pub fn audience(mut self, audience: &str) -> Self {
self.audience = Some(audience.to_owned());
self
}
/// The value of the Client ID field of the Machine-to-Machine application.
///
/// The client id can be found in the Auth0 dashboard under your application settings. Client ID
/// will be the field labeled `Client ID`.
pub fn client_id(mut self, client_id: &str) -> Self {
self.client_id = Some(client_id.to_owned());
self
}
/// The value of the Client Secret field of the Machine-to-Machine application.
///
/// The client secret can be found in the Auth0 dashboard under your application settings.
/// Client Secret will be the field labeled `Client Secret`.
pub fn client_secret(mut self, client_secret: &str) -> Self {
self.client_secret = Some(client_secret.to_owned());
self
}
}
impl Default for Auth0Builder {
fn default() -> Self {
Self {
domain: None,
audience: None,
client_id: None,
client_secret: None,
}
}
}
/// The error type which is returned from building a [Auth0].
#[derive(Debug, PartialOrd, PartialEq)]
pub enum Auth0BuilderError {
/// Indicates builder didn't set [Auth0Builder::domain].
MissingDomain,
/// Indicates builder didn't set [Auth0Builder::audience].
MissingAudience,
/// Indicates builder didn't set [Auth0Builder::client_id].
MissingClientID,
/// Indicates builder didn't set [Auth0Builder::client_secret].
MissingClientSecret,
}
impl Display for Auth0BuilderError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "{:?}", self)
}
}
impl Error for Auth0BuilderError {}