fix(env): privateKey - convert \n to new line

solves issue only found when loaded using kubernetes secrets

Author: adamlacombe

src/helpers.ts

@@ -25,3 +25,16 @@ export async function downloadPackage(pkg: IPackageParams, directory: string) {
     dir: directory
   });
 }
+
+export function jsonEscape(str: string) {
+  return str.replace(/\n/g, "\\n").replace(/\r/g, "\\r").replace(/\t/g, "\\t");
+}
+
+/**
+ * Converts all \n to new lines and returns key.
+ * (solves issue only found when loaded using kubernetes secrets)
+ */
+export function getGCloudPrivateKey() {
+  const obj = JSON.parse(jsonEscape('{"k": "' + process.env.GOOGLE_CLOUD_PRIVATE_KEY.trim() + '"}'));
+  return obj.k;
+}

src/index.ts

@@ -5,7 +5,7 @@ import * as compression from 'compression';
 import * as helmet from 'helmet';
 import {CloudflareChallenge} from '@interactivetraining/le-challenge-cloudflare';
 import {IPackageParams} from './interfaces';
-import {downloadPackage} from './helpers';
+import {downloadPackage, getGCloudPrivateKey} from './helpers';
 import {GCloudStoreCreate} from '@interactivetraining/le-store-gcloud-storage'
 import * as http from 'http';
 
@@ -71,7 +71,7 @@ if (process.env.ENABLE_SSL === "1") {
       bucketName: process.env.GOOGLE_CLOUD_BUCKET_NAME,
       projectId: process.env.GOOGLE_CLOUD_PROJECT_ID,
       dbFileName: process.env.GOOGLE_CLOUD_CERT_DB_FILE,
-      privateKey: process.env.GOOGLE_CLOUD_PRIVATE_KEY.trim(),
+      privateKey: getGCloudPrivateKey(),
       clientEmail: process.env.GOOGLE_CLOUD_CLIENT_EMAIL
     }),
     challengeType: 'dns-01',