143 lines
4.1 KiB
TypeScript
143 lines
4.1 KiB
TypeScript
/*
|
|
Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
|
|
Copyright (C) 2023 Spacebar and Spacebar Contributors
|
|
|
|
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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
import {
|
|
ConnectedAccount,
|
|
ConnectedAccountCommonOAuthTokenResponse,
|
|
Connection,
|
|
ConnectionCallbackSchema,
|
|
ConnectionLoader,
|
|
DiscordApiErrors,
|
|
} from "@spacebar/util";
|
|
import wretch from "wretch";
|
|
import { DiscordSettings } from "./DiscordSettings";
|
|
|
|
interface UserResponse {
|
|
id: string;
|
|
username: string;
|
|
discriminator: string;
|
|
avatar_url: string | null;
|
|
}
|
|
|
|
export default class DiscordConnection extends Connection {
|
|
public readonly id = "discord";
|
|
public readonly authorizeUrl = "https://discord.com/api/oauth2/authorize";
|
|
public readonly tokenUrl = "https://discord.com/api/oauth2/token";
|
|
public readonly userInfoUrl = "https://discord.com/api/users/@me";
|
|
public readonly scopes = ["identify"];
|
|
settings: DiscordSettings = new DiscordSettings();
|
|
|
|
init(): void {
|
|
this.settings = ConnectionLoader.getConnectionConfig<DiscordSettings>(
|
|
this.id,
|
|
this.settings,
|
|
);
|
|
|
|
if (
|
|
this.settings.enabled &&
|
|
(!this.settings.clientId || !this.settings.clientSecret)
|
|
)
|
|
throw new Error(`Invalid settings for connection ${this.id}`);
|
|
}
|
|
|
|
getAuthorizationUrl(userId: string): string {
|
|
const state = this.createState(userId);
|
|
const url = new URL(this.authorizeUrl);
|
|
|
|
url.searchParams.append("state", state);
|
|
url.searchParams.append("client_id", this.settings.clientId as string);
|
|
url.searchParams.append("scope", this.scopes.join(" "));
|
|
url.searchParams.append("response_type", "code");
|
|
// controls whether, on repeated authorizations, the consent screen is shown
|
|
url.searchParams.append("consent", "none");
|
|
url.searchParams.append("redirect_uri", this.getRedirectUri());
|
|
|
|
return url.toString();
|
|
}
|
|
|
|
getTokenUrl(): string {
|
|
return this.tokenUrl;
|
|
}
|
|
|
|
async exchangeCode(
|
|
state: string,
|
|
code: string,
|
|
): Promise<ConnectedAccountCommonOAuthTokenResponse> {
|
|
this.validateState(state);
|
|
const url = this.getTokenUrl();
|
|
|
|
return wretch(url.toString())
|
|
.headers({
|
|
Accept: "application/json",
|
|
"Content-Type": "application/x-www-form-urlencoded",
|
|
})
|
|
.body(
|
|
new URLSearchParams({
|
|
client_id: this.settings.clientId as string,
|
|
client_secret: this.settings.clientSecret as string,
|
|
grant_type: "authorization_code",
|
|
code: code,
|
|
redirect_uri: this.getRedirectUri(),
|
|
}),
|
|
)
|
|
.post()
|
|
.json<ConnectedAccountCommonOAuthTokenResponse>()
|
|
.catch((e) => {
|
|
console.error(e);
|
|
throw DiscordApiErrors.GENERAL_ERROR;
|
|
});
|
|
}
|
|
|
|
async getUser(token: string): Promise<UserResponse> {
|
|
const url = new URL(this.userInfoUrl);
|
|
return wretch(url.toString())
|
|
.headers({
|
|
Authorization: `Bearer ${token}`,
|
|
})
|
|
.get()
|
|
.json<UserResponse>()
|
|
.catch((e) => {
|
|
console.error(e);
|
|
throw DiscordApiErrors.GENERAL_ERROR;
|
|
});
|
|
}
|
|
|
|
async handleCallback(
|
|
params: ConnectionCallbackSchema,
|
|
): Promise<ConnectedAccount | null> {
|
|
const { state, code } = params;
|
|
if (!code) throw new Error("No code provided");
|
|
|
|
const userId = this.getUserId(state);
|
|
const tokenData = await this.exchangeCode(state, code);
|
|
const userInfo = await this.getUser(tokenData.access_token);
|
|
|
|
const exists = await this.hasConnection(userId, userInfo.id);
|
|
|
|
if (exists) return null;
|
|
|
|
return await this.createConnection({
|
|
user_id: userId,
|
|
external_id: userInfo.id,
|
|
friend_sync: params.friend_sync,
|
|
name: `${userInfo.username}#${userInfo.discriminator}`,
|
|
type: this.id,
|
|
});
|
|
}
|
|
}
|