Merge pull request #553 from conwnet/master

release 0.22.0
conwnet · Feb 25, 2024 · 6bef173 · 6bef173
2 parents 14dca90 + 85217b7
commit 6bef173
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diff --git a/api/github-auth-callback/index.js b/api/github-auth-callback/index.js
diff --git a/api/github-auth-callback/index.ts b/api/github-auth-callback/index.ts
@@ -0,0 +1,71 @@
+/**
+ * @file github auth callback
+ * @author netcon
+ */
+
+import got from 'got';
+import type { VercelRequest, VercelResponse } from '@vercel/node';
+
+const CLIENT_ID = process.env.GITHUB_OAUTH_ID || '';
+const CLIENT_SECRET = process.env.GITHUB_OAUTH_SECRET || '';
+// allow origins should split by ','
+const ALLOWED_ORIGINS = process.env.GITHUB1S_ALLOWED_ORIGINS || '';
+
+const createResponseHtml = (text: string, script: string) => `
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<title>Connect to GitHub</title>
+</head>
+<body>
+	<h1>${text}</h1>
+	<script>${script}</script>
+</body>
+</html>
+`;
+
+// return the data to the opener window by postMessage API,
+// and close current window if successfully connected
+const createAuthorizeResultHtml = (data: Record<any, any>) => {
+	const errorText = 'Failed! You can close this window and retry.';
+	const successText = 'Connected! You can now close this window.';
+	const resultStr = `{ type: 'authorizing', payload: ${JSON.stringify(data)} }`;
+	const script = `
+	'${ALLOWED_ORIGINS}'.split(',').forEach(function(allowedOrigin) {
+		window.opener.postMessage(${resultStr}, allowedOrigin);
+	});
+	${data.error ? '' : 'setTimeout(() => window.close(), 50);'}`;
+	return createResponseHtml(data.error ? errorText : successText, script);
+};
+
+const MISSING_CODE_ERROR = {
+	error: 'request_invalid',
+	error_description: 'Missing code',
+};
+const UNKNOWN_ERROR = {
+	error: 'internal_error',
+	error_description: 'Unknown error',
+};
+
+export default async (req: VercelRequest, res: VercelResponse) => {
+	const code = req.query.code;
+	const sendResponseHtml = (status, data) => {
+		res.status(status);
+		res.send(createAuthorizeResultHtml(data));
+	};
+
+	if (!code) {
+		return sendResponseHtml(401, MISSING_CODE_ERROR);
+	}
+
+	try {
+		// https://docs.github.com/en/developers/apps/authorizing-oauth-apps#2-users-are-redirected-back-to-your-site-by-github
+		const response = await got.post('https://github.com/login/oauth/access_token', {
+			json: { client_id: CLIENT_ID, client_secret: CLIENT_SECRET, code },
+			responseType: 'json',
+		});
+		return sendResponseHtml(response.statusCode, response.body);
+	} catch (e) {
+		return sendResponseHtml(500, UNKNOWN_ERROR);
+	}
+};
diff --git a/api/github-auth-callback/package.json b/api/github-auth-callback/package.json
@@ -1,10 +1,13 @@
 {
   "name": "github-auth-callback",
   "version": "0.0.0",
-  "main": "index.js",
+  "main": "index.ts",
   "license": "MIT",
   "private": true,
   "dependencies": {
     "got": "^11.8.5"
+  },
+  "devDependencies": {
+    "@vercel/node": "^3.0.20"
   }
 }