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use std::path::PathBuf;
use reqwest::StatusCode;
use serde::{Deserialize, Serialize};
use serde_json::json;
use thiserror::Error;
use tracing::{debug, error};
use uuid::Uuid;
use crate::cache;
#[derive(Error, Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ErrorPayload {
pub error: String,
pub cause: Option<String>,
pub error_message: String,
}
impl std::fmt::Display for ErrorPayload {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{}", self.error_message)
}
}
#[derive(Debug, Error)]
pub enum YggdrasilAuthError {
#[error("Error sending HTTP request to authserver: {0}")]
HttpError(#[from] reqwest::Error),
#[error("This account has been migrated")]
Migrated,
#[error("Forbidden operation: {0}")]
ForbiddenOperation(ErrorPayload),
#[error("Unauthorized: {0}")]
Unauthorized(ErrorPayload),
#[error("RateLimiter disallowed request")]
RateLimited,
#[error("Error reading password: {0}")]
PasswordError(#[from] std::io::Error),
#[error("Unexpected response from authserver (status code {status_code}): {body}")]
UnexpectedResponse { status_code: u16, body: String },
}
#[derive(Debug, Deserialize)]
pub struct Property {
pub name: String,
pub value: String,
}
#[derive(Debug, Deserialize)]
pub struct User {
pub id: Uuid,
pub username: Option<String>,
pub properties: Vec<Property>,
}
#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct YggdrasilAuthResult {
pub access_token: String,
pub client_token: String,
pub user: User,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct YggdrasilCachedAccount {
pub backend: String,
pub username: String,
pub access_token: String,
pub client_token: String,
}
pub struct YggdrasilCacheKey<'a> {
pub backend: &'a str,
pub username: &'a str,
}
impl<'a, 'b> PartialEq<YggdrasilCacheKey<'b>> for YggdrasilCacheKey<'a> {
fn eq(&self, other: &YggdrasilCacheKey<'b>) -> bool {
self.backend == other.backend && self.username == other.username
}
}
impl cache::CacheEntry for YggdrasilCachedAccount {
type Key<'a> = YggdrasilCacheKey<'a>;
fn key<'a>(&'a self) -> Self::Key<'a> {
YggdrasilCacheKey {
backend: &self.backend,
username: &self.username,
}
}
}
#[derive(Default, Debug, Clone)]
pub struct YggdrasilAuthOpts {
/// The directory to store the cache in.
///
/// If this is `None`, azalea-auth will not keep its own cache.
pub cache_file: Option<PathBuf>,
}
async fn handle_response(
res: reqwest::Response,
) -> Result<YggdrasilAuthResult, YggdrasilAuthError> {
match res.status() {
StatusCode::OK => Ok(res.json::<YggdrasilAuthResult>().await?),
StatusCode::FORBIDDEN => Err(YggdrasilAuthError::ForbiddenOperation(
res.json::<ErrorPayload>().await?,
)),
StatusCode::UNAUTHORIZED => Err(YggdrasilAuthError::Unauthorized(
res.json::<ErrorPayload>().await?,
)),
StatusCode::GONE => Err(YggdrasilAuthError::Migrated),
StatusCode::TOO_MANY_REQUESTS => Err(YggdrasilAuthError::RateLimited),
status_code => {
// log the headers
debug!("Error headers: {:#?}", res.headers());
let body = res.text().await?;
Err(YggdrasilAuthError::UnexpectedResponse {
status_code: status_code.as_u16(),
body,
})
}
}
}
pub async fn authenticate(
username: &str,
password: &str,
backend: &str,
) -> Result<YggdrasilAuthResult, YggdrasilAuthError> {
let data = json!({
"password": password,
"username": username,
"requestUser": true,
});
handle_response(
reqwest::ClientBuilder::new()
.build()?
.post(format!("{backend}/authenticate"))
.json(&data)
.send()
.await?,
)
.await
}
pub async fn refresh(
access_token: &str,
client_token: &str,
backend: &str,
) -> Result<YggdrasilAuthResult, YggdrasilAuthError> {
let data = json!({
"accessToken": access_token,
"clientToken": client_token,
"requestUser": true,
});
handle_response(
reqwest::ClientBuilder::new()
.build()?
.post(format!("{backend}/refresh"))
.json(&data)
.send()
.await?,
)
.await
}
async fn new_session(
username: &str,
password: Option<&str>,
backend: &str,
) -> Result<YggdrasilAuthResult, YggdrasilAuthError> {
let password = match password {
Some(x) => x,
None => &rpassword::prompt_password(format!("Enter password for {username}: "))?,
};
authenticate(username, password, backend).await
}
pub async fn yggdrasil_auth(
username: &str,
password: Option<&str>,
backend: &str,
opts: YggdrasilAuthOpts,
) -> Result<YggdrasilAuthResult, YggdrasilAuthError> {
let cached_account = if let Some(cache_file) = &opts.cache_file {
cache::get_account_in_cache_g::<YggdrasilCachedAccount>(
cache_file,
YggdrasilCacheKey { username, backend },
)
.await
} else {
None
};
let result = match cached_account {
Some(acc) => match refresh(&acc.access_token, &acc.client_token, backend).await {
Ok(x) => x,
Err(e) => {
error!("While refreshing {}: {}", username, e);
new_session(username, password, backend).await?
}
},
None => new_session(username, password, backend).await?,
};
if let Some(cache_file) = &opts.cache_file
&& let Err(e) = cache::set_account_in_cache_g::<YggdrasilCachedAccount>(
cache_file,
YggdrasilCacheKey { username, backend },
YggdrasilCachedAccount {
backend: backend.to_owned(),
username: username.to_owned(),
access_token: result.access_token.clone(),
client_token: result.client_token.clone(),
},
)
.await
{
error!("{}", e);
}
Ok(result)
}
|
