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/*
GoToSocial
Copyright (C) GoToSocial Authors admin@gotosocial.org
SPDX-License-Identifier: AGPL-3.0-or-later
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import type { FetchBaseQueryError } from '@reduxjs/toolkit/query';
import { gtsApi } from "../gts-api";
import {
setToken as oauthSetToken,
remove as oauthRemove,
authorize as oauthAuthorize,
} from "../../../redux/oauth";
import { RootState } from '../../../redux/store';
import { Account } from '../../types/account';
export interface OauthTokenRequestBody {
client_id: string;
client_secret: string;
redirect_uri: string;
grant_type: string;
code: string;
}
function getSettingsURL() {
/*
needed in case the settings interface isn't hosted at /settings but
some subpath like /gotosocial/settings. Other parts of the code don't
take this into account yet so mostly future-proofing.
Also drops anything past /settings/, because authorization urls that are too long
get rejected by GTS.
*/
let [pre, _past] = window.location.pathname.split("/settings");
return `${window.location.origin}${pre}/settings`;
}
const SETTINGS_URL = (getSettingsURL());
// Couple auth functions here require multiple requests as
// part of an OAuth token 'flow'. To keep things simple for
// callers of these query functions, the multiple requests
// are chained within one query.
//
// https://redux-toolkit.js.org/rtk-query/usage/customizing-queries#performing-multiple-requests-with-a-single-query
const extended = gtsApi.injectEndpoints({
endpoints: (build) => ({
verifyCredentials: build.query<Account, void>({
providesTags: (_res, error) =>
error == undefined ? ["Auth"] : [],
async queryFn(_arg, api, _extraOpts, fetchWithBQ) {
const state = api.getState() as RootState;
const oauthState = state.oauth;
// If we're not in the middle of an auth/callback,
// we may already have an auth token, so just
// return a standard verify_credentials query.
if (oauthState.loginState != 'callback') {
return fetchWithBQ({
url: `/api/v1/accounts/verify_credentials`
});
}
// We're in the middle of an auth/callback flow.
// Try to retrieve callback code from URL query.
let urlParams = new URLSearchParams(window.location.search);
let code = urlParams.get("code");
if (code == undefined) {
return {
error: {
status: 400,
statusText: 'Bad Request',
data: {"error":"Waiting for callback, but no ?code= provided in url."},
},
};
}
// Retrieve app with which the
// callback code was generated.
let app = oauthState.app;
if (app == undefined || app.client_id == undefined) {
return {
error: {
status: 400,
statusText: 'Bad Request',
data: {"error":"No stored app registration data, can't finish login flow."},
},
};
}
// Use the provided code and app
// secret to request an auth token.
const tokenReqBody: OauthTokenRequestBody = {
client_id: app.client_id,
client_secret: app.client_secret,
redirect_uri: SETTINGS_URL,
grant_type: "authorization_code",
code: code
};
const tokenResult = await fetchWithBQ({
method: "POST",
url: "/oauth/token",
body: tokenReqBody,
});
if (tokenResult.error) {
return { error: tokenResult.error as FetchBaseQueryError };
}
// Remove ?code= query param from
// url, we don't want it anymore.
window.history.replaceState({}, document.title, window.location.pathname);
// Store returned token in redux.
api.dispatch(oauthSetToken(tokenResult.data));
// We're now authed! So return
// standard verify_credentials query.
return fetchWithBQ({
url: `/api/v1/accounts/verify_credentials`
});
}
}),
authorizeFlow: build.mutation({
async queryFn(formData, api, _extraOpts, fetchWithBQ) {
const state = api.getState() as RootState;
const oauthState = state.oauth;
let instanceUrl: string;
if (!formData.instance.startsWith("http")) {
formData.instance = `https://${formData.instance}`;
}
instanceUrl = new URL(formData.instance).origin;
if (oauthState?.instanceUrl == instanceUrl && oauthState.app) {
return { data: oauthState.app };
}
const appResult = await fetchWithBQ({
method: "POST",
baseUrl: instanceUrl,
url: "/api/v1/apps",
body: {
client_name: "GoToSocial Settings",
scopes: formData.scopes,
redirect_uris: SETTINGS_URL,
website: SETTINGS_URL
}
});
if (appResult.error) {
return { error: appResult.error as FetchBaseQueryError };
}
let app = appResult.data as any;
app.scopes = formData.scopes;
api.dispatch(oauthAuthorize({
instanceUrl: instanceUrl,
app: app,
loginState: "callback",
expectingRedirect: true
}));
let url = new URL(instanceUrl);
url.pathname = "/oauth/authorize";
url.searchParams.set("client_id", app.client_id);
url.searchParams.set("redirect_uri", SETTINGS_URL);
url.searchParams.set("response_type", "code");
url.searchParams.set("scope", app.scopes);
let redirectURL = url.toString();
window.location.assign(redirectURL);
return { data: null };
},
}),
logout: build.mutation({
queryFn: (_arg, api) => {
api.dispatch(oauthRemove());
return { data: null };
},
invalidatesTags: ["Auth"]
})
})
});
export const {
useVerifyCredentialsQuery,
useAuthorizeFlowMutation,
useLogoutMutation,
} = extended;
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