selinux: keys: Match original PEM line lengths

This commit is contained in:
Danny Lin 2021-12-18 18:58:43 -08:00
parent 3803585e71
commit 5813bd1b8e

View file

@ -141,10 +141,9 @@ export function resolveKeys(
.map(s => [s.cert as Uint8Array, seinfoToPaths.get(s.seinfoId)!]))
}
function serializeCert(cert: Uint8Array) {
function serializeCert(cert: Uint8Array, lineLength: number) {
let base64 = Buffer.from(cert).toString('base64')
// Wrap to 76 chars to match Google's PEMs
let wrapped = base64.replace(/(.{76})/g, '$1\n')
let wrapped = base64.replace(new RegExp(`(.{${lineLength}})`, 'g'), '$1\n')
return `-----BEGIN CERTIFICATE-----
${wrapped}
@ -154,8 +153,10 @@ ${wrapped}
export async function writeMappedKeys(keys: Map<Uint8Array, Iterable<string>>) {
for (let [cert, paths] of keys.entries()) {
let serialized = serializeCert(cert)
for (let path of paths) {
let lineLength = (await readFile(path)).split('\n')[1].length
let serialized = serializeCert(cert, lineLength)
await fs.writeFile(path, serialized)
}
}