feat(vhd-lib/peekFooterFromStream): check checksum and content

CHANGELOG.unreleased.md

@@ -36,7 +36,7 @@
 <!--packages-start-->
 
 - @xen-orchestra/self-signed patch
-- vhd-lib patch
+- vhd-lib minor
 - @xen-orchestra/fs patch
 - vhd-cli patch
 - xo-vmdk-to-vhd minor

packages/vhd-lib/peekFooterFromVhdStream.js

@@ -3,11 +3,10 @@
 const { readChunk } = require('@vates/read-chunk')
 
 const { FOOTER_SIZE } = require('./_constants')
-const { fuFooter } = require('./_structs')
+const { unpackFooter } = require('./Vhd/_utils.js')
 
 module.exports = async function peekFooterFromStream(stream) {
-  const footerBuffer = await readChunk(stream, FOOTER_SIZE)
-  const footer = fuFooter.unpack(footerBuffer)
-  stream.unshift(footerBuffer)
-  return footer
+  const buffer = await readChunk(stream, FOOTER_SIZE)
+  stream.unshift(buffer)
+  return unpackFooter(buffer)
 }

packages/xo-server/src/api/disk.mjs

@@ -6,7 +6,7 @@ import { defer } from 'golike-defer'
 import { format, JsonRpcError } from 'json-rpc-peer'
 import { noSuchObject } from 'xo-common/api-errors.js'
 import { pipeline } from 'stream'
-import { checkFooter, peekFooterFromVhdStream } from 'vhd-lib'
+import { peekFooterFromVhdStream } from 'vhd-lib'
 import { vmdkToVhd } from 'xo-vmdk-to-vhd'
 
 import { VDI_FORMAT_VHD, VDI_FORMAT_RAW } from '../xapi/index.mjs'
@@ -192,14 +192,12 @@ async function handleImport(req, res, { type, name, description, vmdkData, srId,
               break
             case 'vhd':
               {
-                const footer = await peekFooterFromVhdStream(vhdStream)
-                try {
-                  checkFooter(footer)
-                } catch (e) {
+                const footer = await peekFooterFromVhdStream(vhdStream).catch(e => {
                   if (e instanceof assert.AssertionError) {
                     throw new JsonRpcError(`Vhd file had an invalid header ${e}`)
                   }
-                }
+                  throw e
+                })
                 vhdStream = part
                 size = footer.currentSize
               }