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lewis.moe
1use axum::{
2 Json,
3 http::StatusCode,
4 response::{IntoResponse, Response},
5};
6use serde::Serialize;
7
8#[derive(Debug)]
9pub enum OAuthError {
10 InvalidRequest(String),
11 InvalidClient(String),
12 InvalidGrant(String),
13 UnauthorizedClient(String),
14 UnsupportedGrantType(String),
15 InvalidScope(String),
16 AccessDenied(String),
17 ServerError(String),
18 UseDpopNonce(String),
19 InvalidDpopProof(String),
20 ExpiredToken(String),
21 InvalidToken(String),
22 RateLimited,
23}
24
25#[derive(Serialize)]
26struct OAuthErrorResponse {
27 error: String,
28 error_description: Option<String>,
29}
30
31impl IntoResponse for OAuthError {
32 fn into_response(self) -> Response {
33 let (status, error, description) = match self {
34 OAuthError::InvalidRequest(msg) => {
35 (StatusCode::BAD_REQUEST, "invalid_request", Some(msg))
36 }
37 OAuthError::InvalidClient(msg) => {
38 (StatusCode::UNAUTHORIZED, "invalid_client", Some(msg))
39 }
40 OAuthError::InvalidGrant(msg) => {
41 (StatusCode::BAD_REQUEST, "invalid_grant", Some(msg))
42 }
43 OAuthError::UnauthorizedClient(msg) => {
44 (StatusCode::UNAUTHORIZED, "unauthorized_client", Some(msg))
45 }
46 OAuthError::UnsupportedGrantType(msg) => {
47 (StatusCode::BAD_REQUEST, "unsupported_grant_type", Some(msg))
48 }
49 OAuthError::InvalidScope(msg) => {
50 (StatusCode::BAD_REQUEST, "invalid_scope", Some(msg))
51 }
52 OAuthError::AccessDenied(msg) => {
53 (StatusCode::FORBIDDEN, "access_denied", Some(msg))
54 }
55 OAuthError::ServerError(msg) => {
56 (StatusCode::INTERNAL_SERVER_ERROR, "server_error", Some(msg))
57 }
58 OAuthError::UseDpopNonce(nonce) => {
59 return (
60 StatusCode::BAD_REQUEST,
61 [("DPoP-Nonce", nonce)],
62 Json(OAuthErrorResponse {
63 error: "use_dpop_nonce".to_string(),
64 error_description: Some("A DPoP nonce is required".to_string()),
65 }),
66 )
67 .into_response();
68 }
69 OAuthError::InvalidDpopProof(msg) => {
70 (StatusCode::UNAUTHORIZED, "invalid_dpop_proof", Some(msg))
71 }
72 OAuthError::ExpiredToken(msg) => {
73 (StatusCode::UNAUTHORIZED, "invalid_token", Some(msg))
74 }
75 OAuthError::InvalidToken(msg) => {
76 (StatusCode::UNAUTHORIZED, "invalid_token", Some(msg))
77 }
78 OAuthError::RateLimited => {
79 (StatusCode::TOO_MANY_REQUESTS, "rate_limited", Some("Too many requests. Please try again later.".to_string()))
80 }
81 };
82
83 (
84 status,
85 Json(OAuthErrorResponse {
86 error: error.to_string(),
87 error_description: description,
88 }),
89 )
90 .into_response()
91 }
92}
93
94impl From<sqlx::Error> for OAuthError {
95 fn from(err: sqlx::Error) -> Self {
96 tracing::error!("Database error in OAuth flow: {}", err);
97 OAuthError::ServerError("An internal error occurred".to_string())
98 }
99}
100
101impl From<anyhow::Error> for OAuthError {
102 fn from(err: anyhow::Error) -> Self {
103 tracing::error!("Internal error in OAuth flow: {}", err);
104 OAuthError::ServerError("An internal error occurred".to_string())
105 }
106}