From 1d43bcfa6d4090109bfabef06b49a4069120dd33 Mon Sep 17 00:00:00 2001
From: Patrik Oldsberg <poldsberg@gmail.com>
Date: Mon, 11 Jul 2022 13:49:25 +0200
Subject: [PATCH] auth-backend: add script for re-publishing openid-client

Co-authored-by: blam <ben@blam.sh>
Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
---
 .../scripts/republish-openid-client.js        | 109 ++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100755 plugins/auth-backend/scripts/republish-openid-client.js

diff --git a/plugins/auth-backend/scripts/republish-openid-client.js b/plugins/auth-backend/scripts/republish-openid-client.js
new file mode 100755
index 0000000000..9d4497e590
--- /dev/null
+++ b/plugins/auth-backend/scripts/republish-openid-client.js
@@ -0,0 +1,109 @@
+#!/usr/bin/env node
+/* eslint-disable import/no-extraneous-dependencies */
+/*
+ * Copyright 2022 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const fetch = require('node-fetch');
+const zlib = require('zlib');
+
+// eslint-disable-next-line import/no-extraneous-dependencies
+const libpub = require('libnpmpublish');
+const concatStream = require('concat-stream');
+const tar = require('tar-stream');
+
+/*
+
+This works around an incompatibility in node versioning policies between Backstage and
+the openid-client package. This script downloads a target version of the openid-client
+package and re-publishes it as a new version of the openid-client-any-engine package.
+
+Usage: ./republish-openid-client.js <version>
+
+Environment Variables:
+
+NPM_TOKEN: The NPM auth token to use for publishing.
+NPM_OTP: The NPM OTP (2FA one time password) to use for publishing.
+
+*/
+
+async function main(args) {
+  const [version] = args;
+  if (!version) {
+    throw new Error('No version provided, Usage: $0 <version>');
+  }
+
+  const res = await fetch(
+    `https://registry.npmjs.org/openid-client/-/openid-client-${version}.tgz`,
+  );
+  if (!res.ok) {
+    throw new Error(`Failed to fetch openid-client: ${res.status}`);
+  }
+
+  const { data, manifest } = await new Promise((resolve, reject) => {
+    const extract = tar.extract();
+    const pack = tar.pack();
+    let foundPackageJson = undefined;
+
+    res.body.pipe(zlib.createGunzip()).pipe(extract).on('error', reject);
+
+    extract.on('entry', (header, stream, callback) => {
+      if (header.name === 'package/package.json') {
+        stream.pipe(
+          concatStream(fileContents => {
+            const packageJson = JSON.parse(fileContents.toString('utf8'));
+            packageJson.name = 'openid-client-any-engine';
+            packageJson.description =
+              'Re-publish of openid-client that allows any Node.js version above 12.19.0';
+            packageJson.engines.node = '>=12.19.0';
+
+            foundPackageJson = packageJson;
+
+            pack.entry(
+              { name: 'package/package.json' },
+              JSON.stringify(packageJson, null, 2),
+            );
+            callback();
+          }),
+        );
+      } else {
+        stream.pipe(pack.entry(header, callback));
+      }
+    });
+
+    extract.on('finish', () => {
+      pack.finalize();
+    });
+
+    pack
+      .pipe(zlib.createGzip())
+      .pipe(
+        concatStream(d => {
+          resolve({ data: d, manifest: foundPackageJson });
+        }),
+      )
+      .on('error', reject);
+  });
+
+  await libpub.publish(manifest, data, {
+    token: process.env.NPM_TOKEN,
+    otp: process.env.NPM_OTP,
+  });
+}
+
+main(process.argv.slice(2)).catch(error => {
+  console.error(error);
+  process.exit(1);
+});