Merge pull request #1009 from Puyodead1/refactor/dev/connections

Connections Part 1

2 files changed, 111 insertions, 0 deletions

diff --git a/src/connections/GitHub/GitHubSettings.ts b/src/connections/GitHub/GitHubSettings.ts
new file mode 100644
index 00000000..1b4070d2
--- /dev/null
+++ b/src/connections/GitHub/GitHubSettings.ts
@@ -0,0 +1,5 @@
+export class GitHubSettings {
+	enabled: boolean = false;
+	clientId: string | null = null;
+	clientSecret: string | null = null;
+}
diff --git a/src/connections/GitHub/index.ts b/src/connections/GitHub/index.ts
new file mode 100644
index 00000000..638a34af
--- /dev/null
+++ b/src/connections/GitHub/index.ts
@@ -0,0 +1,106 @@
+import {
+	ConnectedAccount,
+	ConnectedAccountCommonOAuthTokenResponse,
+	ConnectionCallbackSchema,
+	ConnectionLoader,
+	DiscordApiErrors,
+} from "@spacebar/util";
+import wretch from "wretch";
+import Connection from "../../util/connections/Connection";
+import { GitHubSettings } from "./GitHubSettings";
+
+interface UserResponse {
+	login: string;
+	id: number;
+	name: string;
+}
+
+export default class GitHubConnection extends Connection {
+	public readonly id = "github";
+	public readonly authorizeUrl = "https://github.com/login/oauth/authorize";
+	public readonly tokenUrl = "https://github.com/login/oauth/access_token";
+	public readonly userInfoUrl = "https://api.github.com/user";
+	public readonly scopes = ["read:user"];
+	settings: GitHubSettings = new GitHubSettings();
+
+	init(): void {
+		this.settings = ConnectionLoader.getConnectionConfig(
+			this.id,
+			this.settings,
+		) as GitHubSettings;
+	}
+
+	getAuthorizationUrl(userId: string): string {
+		const state = this.createState(userId);
+		const url = new URL(this.authorizeUrl);
+
+		url.searchParams.append("client_id", this.settings.clientId!);
+		url.searchParams.append("redirect_uri", this.getRedirectUri());
+		url.searchParams.append("scope", this.scopes.join(" "));
+		url.searchParams.append("state", state);
+		return url.toString();
+	}
+
+	getTokenUrl(code: string): string {
+		const url = new URL(this.tokenUrl);
+		url.searchParams.append("client_id", this.settings.clientId!);
+		url.searchParams.append("client_secret", this.settings.clientSecret!);
+		url.searchParams.append("code", code);
+		return url.toString();
+	}
+
+	async exchangeCode(
+		state: string,
+		code: string,
+	): Promise<ConnectedAccountCommonOAuthTokenResponse> {
+		this.validateState(state);
+
+		const url = this.getTokenUrl(code);
+
+		return wretch(url.toString())
+			.headers({
+				Accept: "application/json",
+			})
+
+			.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 userId = this.getUserId(params.state);
+		const tokenData = await this.exchangeCode(params.state, params.code!);
+		const userInfo = await this.getUser(tokenData.access_token);
+
+		const exists = await this.hasConnection(userId, userInfo.id.toString());
+
+		if (exists) return null;
+
+		return await this.createConnection({
+			user_id: userId,
+			external_id: userInfo.id.toString(),
+			friend_sync: params.friend_sync,
+			name: userInfo.login,
+			type: this.id,
+		});
+	}
+}