Skip to main content

alibi_plugins/oauth/
mod.rs

1mod account;
2mod endpoint;
3pub use account::{OAuthAccountApi, OAuthAccountSelection};
4pub(crate) use endpoint::start_social_flow_response;
5pub use types::{
6    AccessTokenResponse as OAuthAccessToken, AccountInfoAccount as OAuthAccountIdentity,
7    AccountInfoResponse as OAuthAccountProfile,
8};
9mod client_assertion;
10pub(crate) use client_assertion::ALGORITHMS as PRIVATE_KEY_JWT_SIGNING_ALGORITHMS;
11pub use client_assertion::OAuthPrivateKeyJwtOptions;
12
13pub(crate) mod logout;
14
15mod account_cookie;
16
17pub mod encryption;
18
19pub(crate) mod handlers;
20
21pub(crate) mod id_token;
22
23mod providers;
24
25pub(crate) mod state;
26
27mod types;
28use alibi_core::AuthResult;
29use alibi_core::{AuthContext, AuthPlugin, AuthRoute};
30use alibi_core::{AuthRequest, AuthResponse, HttpMethod};
31use async_trait::async_trait;
32pub use endpoint::OAuthRefreshResult;
33pub(crate) use handlers::{
34    OAuthProcessPolicy, OAuthSignInError, create_account_cookie_headers, process_oauth_sign_in,
35};
36pub use handlers::{oauth_callback_path, oauth_disable_sign_up_option, resolve_oauth_account_key};
37pub use id_token::{
38    HttpOAuthJwksSource, OAuthIdTokenClaimsVerifier, OAuthIdTokenConfig, OAuthJwksSelection,
39    OAuthJwksSource, OAuthNonceComparison,
40};
41pub use providers::{
42    AppleOptions, AtlassianOptions, CloudflareOptions, CognitoOptions, DropboxAccessType,
43    DropboxOptions, FacebookOptions, FigmaOptions, GenericOAuthConfig, GenericOAuthError,
44    GenericOAuthMetadata, GenericOAuthResolved, HuggingFaceOptions, KakaoOptions, KickOptions,
45    LineOptions, LinearOptions, LinkedInOptions, MicrosoftOptions, MicrosoftProfilePhotoSize,
46    NaverOptions, NotionOptions, OAuthAccountKey, OAuthAccountKeyContext, OAuthAccountKeyResolver,
47    OAuthAccountSubject, OAuthAuthorizationCodeCallback, OAuthAuthorizationCodeContext,
48    OAuthAuthorizationCodeHandler, OAuthAuthorizationPolicy, OAuthCallbackUserName,
49    OAuthCallbackUserPayload, OAuthClientAssertion, OAuthClientAssertionContext,
50    OAuthClientAssertionGetter, OAuthConfig, OAuthEndSessionConfig, OAuthIdTokenVerifier,
51    OAuthProfileMapper, OAuthProvider, OAuthRefreshContext, OAuthRefreshTokenHandler,
52    OAuthRefreshTokenParams, OAuthRefreshTokenParamsResolver, OAuthScopeEncoding, OAuthScopeOrder,
53    OAuthTokenEndpointAuth, OAuthTokenGrant, OAuthTokenSet, OAuthUserInfo, OAuthUserInfoHandler,
54    OAuthUserInfoRequest, OAuthUserInfoResponse, PayPalEnvironment, PayPalOptions, PaybinOptions,
55    PolarOptions, RailwayOptions, RedditOptions, RobloxOptions, SalesforceEnvironment,
56    SalesforceOptions, SlackOptions, SpotifyOptions, TikTokOptions, TwitchOptions, TwitterOptions,
57    VercelOptions, VkOptions, WeChatLanguage, WeChatOptions, ZoomOptions,
58};
59pub(crate) use state::{
60    CapturedOAuthServerContext, OAuthServerContext, RecoveredOAuthServerContext,
61};
62pub use types::{
63    LinkSocialRequest as OAuthLinkSocialRequest, OAuthCallbackInput, OAuthIdTokenRequest,
64    SocialSignInRequest as OAuthSocialSignInRequest,
65    SocialSignInResponse as OAuthSocialSignInResponse,
66};
67
68pub struct OAuthPlugin {
69    config: OAuthConfig,
70}
71
72impl OAuthPlugin {
73    #[must_use]
74    pub fn new() -> Self {
75        Self {
76            config: OAuthConfig::default(),
77        }
78    }
79
80    #[must_use]
81    pub const fn with_config(config: OAuthConfig) -> Self {
82        Self { config }
83    }
84
85    #[must_use]
86    pub fn add_provider(mut self, name: &str, provider: OAuthProvider) -> Self {
87        _ = self.config.providers.insert(name.to_owned(), provider);
88        self
89    }
90}
91
92impl Default for OAuthPlugin {
93    fn default() -> Self {
94        Self::new()
95    }
96}
97
98#[async_trait]
99impl<S: alibi_core::AuthSchema> AuthPlugin<S> for OAuthPlugin {
100    route_openapi_metadata!(S);
101
102    fn name(&self) -> &'static str {
103        "oauth"
104    }
105
106    fn server_endpoints(&self) -> Vec<alibi_core::endpoint::EndpointDefinition> {
107        endpoint::definitions()
108    }
109    fn validate_endpoint(
110        &self,
111        call: &alibi_core::endpoint::EndpointCall,
112        _: &AuthContext<S>,
113    ) -> AuthResult<alibi_core::endpoint::EndpointInput> {
114        endpoint::validate(call)
115    }
116    async fn on_endpoint(
117        &self,
118        call: &alibi_core::endpoint::EndpointCall,
119        ctx: &AuthContext<S>,
120    ) -> AuthResult<alibi_core::endpoint::EndpointResponse> {
121        if call.operation_id() == "handleOAuthCallback" {
122            return self.call_callback_endpoint(call, ctx).await;
123        }
124        if call.operation_id() == "linkSocialAccount" {
125            return self.call_link_endpoint(call, ctx).await;
126        }
127        if call.operation_id() == "socialSignIn" {
128            return self.call_social_endpoint(call, ctx).await;
129        }
130        self.call_account_endpoint(call, ctx).await
131    }
132
133    fn endpoint_hooks(&self) -> Vec<&dyn alibi_core::endpoint::EndpointHook<S>> {
134        vec![self]
135    }
136    fn routes(&self) -> Vec<AuthRoute> {
137        vec![
138            AuthRoute::post("/sign-in/social", "social_sign_in"),
139            AuthRoute::get("/callback/{provider}", "oauth_callback")
140                .with_context_path("/callback/:id"),
141            AuthRoute::post("/callback/{provider}", "oauth_callback_post")
142                .with_context_path("/callback/:id"),
143            AuthRoute::post("/link-social", "link_social"),
144            AuthRoute::post("/get-access-token", "get_access_token"),
145            AuthRoute::post("/refresh-token", "refresh_token"),
146            AuthRoute::get("/account-info", "account_info"),
147        ]
148    }
149
150    async fn on_init(&self, ctx: &mut alibi_core::AuthInitContext<S>) -> AuthResult<()> {
151        ctx.extensions.insert(self.config.clone());
152        Ok(())
153    }
154
155    fn allowed_media_types(&self, route: &AuthRoute) -> Vec<&'static str> {
156        if route.path == "/callback/{provider}" {
157            vec!["application/x-www-form-urlencoded", "application/json"]
158        } else {
159            vec!["application/json"]
160        }
161    }
162
163    async fn on_request(
164        &self,
165        req: &AuthRequest,
166        ctx: &AuthContext<S>,
167    ) -> AuthResult<Option<AuthResponse>> {
168        match (req.method(), req.path()) {
169            (HttpMethod::Post, "/sign-in/social") => Ok(Some(
170                handlers::handle_social_sign_in(&self.config, req, ctx).await?,
171            )),
172            (HttpMethod::Get | HttpMethod::Post, path) if path_matches_callback(path) => {
173                let provider = extract_provider_from_callback(path);
174                Ok(Some(
175                    handlers::handle_callback(&self.config, &provider, req, ctx).await?,
176                ))
177            }
178            (HttpMethod::Post, "/link-social") => Ok(Some(
179                handlers::handle_link_social(&self.config, req, ctx).await?,
180            )),
181            (HttpMethod::Post, "/get-access-token") => Ok(Some(
182                account::handle_get_access_token(&self.config, req, ctx).await?,
183            )),
184            (HttpMethod::Post, "/refresh-token") => Ok(Some(
185                account::handle_refresh_token(&self.config, req, ctx).await?,
186            )),
187            (HttpMethod::Get, "/account-info") => Ok(Some(
188                account::handle_account_info(&self.config, req, ctx).await?,
189            )),
190            _ => Ok(None),
191        }
192    }
193
194    async fn after_request(
195        &self,
196        req: &AuthRequest,
197        ctx: &AuthContext<S>,
198        mut response: AuthResponse,
199    ) -> AuthResult<AuthResponse> {
200        for header in Self::cache_account_headers(req, ctx, &response.headers)? {
201            response.headers.append("set-cookie", header);
202        }
203        Ok(response)
204    }
205}
206
207impl std::fmt::Debug for OAuthPlugin {
208    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
209        f.debug_struct("OAuthPlugin").finish_non_exhaustive()
210    }
211}
212
213/// Check if the path matches `/callback/{provider}` (with optional query string).
214fn path_matches_callback(path: &str) -> bool {
215    let path_without_query = path.split('?').next().unwrap_or(path);
216    path_without_query
217        .strip_prefix("/callback/")
218        .is_some_and(|provider| !provider.is_empty() && !provider.contains('/'))
219}
220
221/// Extract the provider name from `/callback/{provider}?...`.
222fn extract_provider_from_callback(path: &str) -> String {
223    let path_without_query = path.split('?').next().unwrap_or(path);
224    path_without_query
225        .strip_prefix("/callback/")
226        .unwrap_or_default()
227        .to_owned()
228}
229
230impl OAuthPlugin {
231    fn cache_account_headers<S: alibi_core::AuthSchema>(
232        req: &impl alibi_core::session::SessionRequest,
233        ctx: &AuthContext<S>,
234        headers: &alibi_core::Headers,
235    ) -> AuthResult<Vec<String>> {
236        // Source renews an existing account JWE whenever setCookieCache emits
237        // a session cache, unless this endpoint already owns account issuance.
238        let account_name =
239            alibi_core::utils::cookie_utils::related_cookie_name(&ctx.config, "account_data");
240        let cache_name =
241            alibi_core::utils::cookie_utils::related_cookie_name(&ctx.config, "session_data");
242        let account_chunks = format!("{account_name}.");
243        let cache_chunks = format!("{cache_name}.");
244        let pending: Vec<_> = headers
245            .get_all("set-cookie")
246            .filter_map(|raw| cookie::Cookie::parse(raw.clone()).ok())
247            .collect();
248        if !ctx.config.account.store_account_cookie
249            || pending.iter().any(|cookie| {
250                cookie.name() == account_name || cookie.name().starts_with(&account_chunks)
251            })
252            || !pending.iter().any(|cookie| {
253                (cookie.name() == cache_name || cookie.name().starts_with(&cache_chunks))
254                    && !cookie.value().is_empty()
255                    && cookie.max_age().is_none_or(|age| age.whole_seconds() != 0)
256            })
257        {
258            return Ok(Vec::new());
259        }
260        let Some((user, _)) = alibi_core::session::cookie_cache::runtime::published_session(req)
261            .or_else(|| {
262                req.endpoint_call()
263                    .and_then(alibi_core::endpoint::EndpointCall::session_hook_snapshot)
264            })
265            .or_else(|| {
266                req.physical_request()
267                    .and_then(AuthRequest::session_hook_snapshot)
268            })
269        else {
270            return Ok(Vec::new());
271        };
272        let Ok(Some(account)) = handlers::decode_account_cookie(req, &ctx.config) else {
273            return Ok(Vec::new());
274        };
275        let headers = if account.user_id == user.id {
276            handlers::create_account_cookie_headers(&ctx.config, &account, req)?
277        } else {
278            alibi_core::session::cookie_cache::runtime::chunked_cookie_headers(
279                &account_name,
280                "",
281                Some(0.0),
282                &ctx.config,
283                req.session_headers(),
284                true,
285            )?
286        };
287        Ok(headers)
288    }
289}
290
291#[async_trait]
292impl<S: alibi_core::AuthSchema> alibi_core::endpoint::EndpointHook<S> for OAuthPlugin {
293    async fn after(
294        &self,
295        call: &alibi_core::endpoint::EndpointCall,
296        ctx: &AuthContext<S>,
297        mut response: alibi_core::endpoint::EndpointResponse,
298    ) -> AuthResult<alibi_core::endpoint::EndpointResponse> {
299        for header in Self::cache_account_headers(call, ctx, response.headers())? {
300            response = response.with_header("set-cookie", header);
301        }
302        Ok(response)
303    }
304}