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use std::sync::Arc;
use aes_gcm::{
Aes256Gcm, Key,
aead::{Aead, AeadCore, OsRng},
};
use axum::body::Bytes;
use axum::extract::{Form, State};
use axum::http::StatusCode;
use axum::http::header::CONTENT_TYPE;
use axum::response::IntoResponse;
use base64::{Engine as B64Engine, engine::general_purpose::URL_SAFE_NO_PAD as b64};
use bytes::{BufMut, BytesMut};
use ordinary_auth::AuthClient;
use ordinary_config::ClientPasswordHash;
use serde::Deserialize;
use sha2::{Digest, Sha256};
use x25519_dalek::{EphemeralSecret, PublicKey};
pub async fn start(
State(state): State<Arc<crate::server::OrdinaryAppServerState>>,
body: Bytes,
) -> impl IntoResponse {
let span = tracing::info_span!("auth", flv = %"wasm");
span.in_scope(|| match state.auth.registration_start(body, None, None) {
Ok(v) => (StatusCode::OK, v),
Err(e) => {
tracing::error!("{e}");
(StatusCode::INTERNAL_SERVER_ERROR, Bytes::new())
}
})
}
pub async fn finish(
State(state): State<Arc<crate::server::OrdinaryAppServerState>>,
body: Bytes,
) -> impl IntoResponse {
let span = tracing::info_span!("auth", flv = %"wasm");
span.in_scope(|| match state.auth.registration_finish(body, None) {
Ok((v, account_bytes, _invite_claims)) => {
if let Ok(account) = std::str::from_utf8(&account_bytes) {
let mut builder =
flexbuffers::Builder::new(&flexbuffers::BuilderOptions::SHARE_NONE);
let mut vec_builder = builder.start_vector();
vec_builder.push(account);
// empty claims
vec_builder.push(());
vec_builder.end_vector();
for action in &state.registration_actions {
if let Some(action) = state.actions.get(*action as usize) {
let span = tracing::info_span!("action");
span.in_scope(|| {
if let Err(err) = action.call(builder.view(), &state.actions) {
tracing::error!(%err);
}
});
}
}
}
(StatusCode::OK, v)
}
Err(e) => {
tracing::error!("{e}");
(StatusCode::INTERNAL_SERVER_ERROR, Bytes::new())
}
})
}
#[derive(Deserialize, Debug)]
pub struct RegisterForm {
account: String,
password: String,
invite_token: Option<String>,
}
#[allow(clippy::too_many_lines)]
/// for <noscript> users
pub async fn form(
State(state): State<Arc<crate::server::OrdinaryAppServerState>>,
Form(register_form): Form<RegisterForm>,
) -> impl IntoResponse {
let span = tracing::info_span!("auth", flv = %"noscript");
span.in_scope(|| {
let account = register_form.account.as_bytes();
if account.len() > 255 {
return (
StatusCode::INTERNAL_SERVER_ERROR,
[(CONTENT_TYPE, "text/plain".to_string())],
Bytes::copy_from_slice(b"encoded account cannot be more than 255 bytes!"),
);
}
let password = register_form.password.as_bytes();
let app_name = state.config.domain.as_bytes();
let mut input = app_name.to_vec();
input.extend_from_slice(account);
input.extend_from_slice(password);
let mut password = vec![];
if let Some(auth) = &state.config.auth {
match &auth.client_hash {
ClientPasswordHash::Sha256 => {
let mut hasher = Sha256::new();
hasher.update(&input);
password = hasher.finalize().to_vec();
}
}
}
let mut invite_token = None;
if state.auth.config.invite.is_some()
&& let Some(token) = register_form.invite_token
{
match b64.decode(token) {
Ok(decoded) => {
invite_token = Some(Bytes::copy_from_slice(&decoded[..]));
}
Err(err) => {
tracing::error!(%err);
return (
StatusCode::INTERNAL_SERVER_ERROR,
[(CONTENT_TYPE, "text/plain".to_string())],
Bytes::copy_from_slice(b"error!"),
);
}
}
}
match AuthClient::registration_start_req(account, &password[..], invite_token) {
Ok((client_state, req)) => match state.auth.registration_start(req, None, None) {
Ok(server_message) => match AuthClient::registration_finish_req(
account,
&password[..],
&client_state,
&server_message[..],
) {
Ok((private_key, req)) => match state.auth.registration_finish(req, None) {
Ok((res, account_bytes, _invite_claims)) => {
if let Ok(account) = std::str::from_utf8(&account_bytes) {
let mut builder = flexbuffers::Builder::new(
&flexbuffers::BuilderOptions::SHARE_NONE,
);
let mut vec_builder = builder.start_vector();
vec_builder.push(account);
// empty claims
vec_builder.push(());
vec_builder.end_vector();
for action in &state.registration_actions {
if let Some(action) = state.actions.get(*action as usize) {
let span = tracing::info_span!("action");
span.in_scope(|| {
if let Err(err) =
action.call(builder.view(), &state.actions)
{
tracing::error!(%err);
}
});
}
}
}
match AuthClient::decrypt_totp_mfa_to_qr_svg(
&res,
private_key,
state.config.domain.clone(),
register_form.account,
) {
Ok((qr_code, recovery_codes)) => {
if let Some(idx) = state.mfa_totp_template_idx
&& let Some(template) = state.templates.get(idx as usize)
{
match std::str::from_utf8(&account_bytes) {
Ok(account) => {
match template.render(
"/totp".into(),
None,
None,
Some((
qr_code.clone(),
account.to_string(),
recovery_codes,
)),
&None,
) {
Ok(res) => {
return (
StatusCode::OK,
[(
CONTENT_TYPE,
template.config.mime.clone(),
)],
res,
);
}
Err(err) => tracing::error!(%err),
}
}
Err(err) => tracing::error!(%err),
}
}
return (
StatusCode::OK,
[(CONTENT_TYPE, "text/html".to_string())],
Bytes::copy_from_slice(qr_code.as_bytes()),
);
}
Err(err) => tracing::error!(%err),
}
}
Err(err) => tracing::error!(%err),
},
Err(err) => tracing::error!(%err),
},
Err(err) => tracing::error!(%err),
},
Err(err) => tracing::error!(%err),
}
(
StatusCode::INTERNAL_SERVER_ERROR,
[(CONTENT_TYPE, "text/plain".to_string())],
Bytes::copy_from_slice(b"error!"),
)
})
}
#[allow(clippy::too_many_lines)]
pub async fn hash_only(
State(state): State<Arc<crate::server::OrdinaryAppServerState>>,
body: Bytes,
) -> impl IntoResponse {
let span = tracing::info_span!("auth", flv = %"js");
span.in_scope(|| {
if let Some(account_len) = body.first() {
let account_len = *account_len as usize;
if body.len() < account_len + 1 + 32 + 32 {
return (StatusCode::INTERNAL_SERVER_ERROR, Bytes::new());
}
let account_bytes = &body[1..=account_len];
let password = &body[account_len + 1..account_len + 1 + 32];
let public_key: [u8; 32] =
match body[account_len + 1 + 32..account_len + 1 + 32 + 32].try_into() {
Ok(pk) => pk,
Err(err) => {
tracing::error!(%err);
return (StatusCode::EXPECTATION_FAILED, Bytes::new());
}
};
let mut invite_token = None;
if state.auth.config.invite.is_some() {
if body.len() < account_len + 1 + 32 + 32 + 1 {
return (StatusCode::INTERNAL_SERVER_ERROR, Bytes::new());
}
let token = &body[account_len + 1 + 32 + 32..];
invite_token = Some(Bytes::copy_from_slice(token));
}
match AuthClient::registration_start_req(account_bytes, password, invite_token) {
Ok((client_state, req)) => match state.auth.registration_start(req, None, None) {
Ok(server_message) => match AuthClient::registration_finish_req(
account_bytes,
password,
&client_state,
&server_message[..],
) {
Ok((private_key, req)) => {
match state.auth.registration_finish(req, None) {
Ok((res, account_bytes, _invite_claims)) => {
if let Ok(account) = std::str::from_utf8(&account_bytes) {
let mut builder = flexbuffers::Builder::new(
&flexbuffers::BuilderOptions::SHARE_NONE,
);
let mut vec_builder = builder.start_vector();
vec_builder.push(account);
// empty claims
vec_builder.push(());
vec_builder.end_vector();
for action in &state.registration_actions {
if let Some(action) =
state.actions.get(*action as usize)
{
let span = tracing::info_span!("action");
span.in_scope(|| {
if let Err(err) =
action.call(builder.view(), &state.actions)
{
tracing::error!(%err);
}
});
}
}
match AuthClient::decrypt_totp_mfa_to_qr_svg(
&res,
private_key,
state.config.domain.clone(),
account.into(),
) {
Ok((qr_code, recovery_codes)) => {
use aes_gcm::aead::KeyInit;
let public_key = PublicKey::from(public_key);
let ephemeral_secret =
EphemeralSecret::random_from_rng(OsRng);
let ephemeral_public_key =
PublicKey::from(&ephemeral_secret);
let shared_secret =
ephemeral_secret.diffie_hellman(&public_key);
let key = Key::<Aes256Gcm>::from_slice(
shared_secret.as_bytes(),
);
let cipher = Aes256Gcm::new(key);
let nonce = Aes256Gcm::generate_nonce(&mut OsRng); // 96-bits; unique per message
let ciphertext = match cipher.encrypt(
&nonce,
format!("{recovery_codes}__{qr_code}").as_ref(),
) {
Ok(v) => v,
Err(err) => {
tracing::error!(%err);
return (
StatusCode::INTERNAL_SERVER_ERROR,
Bytes::new(),
);
}
};
let mut res = BytesMut::new();
res.put(&ephemeral_public_key.as_bytes()[..]);
res.put(&nonce[..]);
res.put(&ciphertext[..]);
return (StatusCode::OK, res.into());
}
Err(err) => tracing::error!(%err),
}
}
}
Err(err) => tracing::error!(%err),
}
}
Err(err) => tracing::error!(%err),
},
Err(err) => tracing::error!(%err),
},
Err(err) => tracing::error!(%err),
}
}
(StatusCode::INTERNAL_SERVER_ERROR, Bytes::new())
})
}