From fc4da30933cf790e677a9243167a8ab8c1b92ab2 Mon Sep 17 00:00:00 2001
From: Joao Moreno <jomo@microsoft.com>
Date: Mon, 22 May 2017 15:28:42 +0200
Subject: [PATCH] compute sha256 hash of published assets

---
 build/tfs/common/publish.ts | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/build/tfs/common/publish.ts b/build/tfs/common/publish.ts
index d7a31ce7440..79dba115e40 100644
--- a/build/tfs/common/publish.ts
+++ b/build/tfs/common/publish.ts
@@ -7,6 +7,7 @@
 
 import * as fs from 'fs';
 import { execSync } from 'child_process';
+import { Readable } from 'stream';
 import * as crypto from 'crypto';
 import * as azure from 'azure-storage';
 import * as mime from 'mime';
@@ -18,10 +19,9 @@ if (process.argv.length < 6) {
 	process.exit(-1);
 }
 
-function sha1hash(file: string): Promise<string> {
+function hashStream(hashName: string, stream: Readable): Promise<string> {
 	return new Promise<string>((c, e) => {
-		const shasum = crypto.createHash('sha1');
-		const stream = fs.createReadStream(file);
+		const shasum = crypto.createHash(hashName);
 
 		stream
 			.on('data', shasum.update.bind(shasum))
@@ -67,6 +67,7 @@ interface Asset {
 	url: string;
 	mooncakeUrl: string;
 	hash: string;
+	sha256hash: string;
 }
 
 function createOrUpdate(commit: string, quality: string, platform: string, type: string, release: NewDocument, asset: Asset, isUpdate: boolean): Promise<void> {
@@ -162,8 +163,11 @@ async function publish(commit: string, quality: string, platform: string, type:
 	console.log('Is Released:', isReleased);
 	console.log('File:', file);
 
-	const hash = await sha1hash(file);
-	console.log('Hash:', hash);
+	const stream = fs.createReadStream(file);
+	const [sha1hash, sha256hash] = await Promise.all([hashStream('sha1', stream), hashStream('sha256', stream)]);
+
+	console.log('SHA1:', sha1hash);
+	console.log('SHA256:', sha1hash);
 
 	const blobName = commit + '/' + name;
 	const storageAccount = process.env['AZURE_STORAGE_ACCOUNT_2'];
@@ -207,7 +211,8 @@ async function publish(commit: string, quality: string, platform: string, type:
 		type: type,
 		url: `${process.env['AZURE_CDN_URL']}/${quality}/${blobName}`,
 		mooncakeUrl: `${process.env['MOONCAKE_CDN_URL']}/${quality}/${blobName}`,
-		hash: hash
+		hash: sha1hash,
+		sha256hash
 	};
 
 	const release = {
-- 
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