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selinux: keys: Match original PEM line lengths

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This commit is contained in:
Danny Lin 2021-12-18 18:58:43 -08:00
parent 3803585e71
commit 5813bd1b8e
1 changed files with 5 additions and 4 deletions
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9
src/selinux/keys.ts
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@ -141,10 +141,9 @@ export function resolveKeys(
.map(s => [s.cert as Uint8Array, seinfoToPaths.get(s.seinfoId)!])) .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') let base64 = Buffer.from(cert).toString('base64')
// Wrap to 76 chars to match Google's PEMs let wrapped = base64.replace(new RegExp(`(.{${lineLength}})`, 'g'), '$1\n')
let wrapped = base64.replace(/(.{76})/g, '$1\n')
return `-----BEGIN CERTIFICATE----- return `-----BEGIN CERTIFICATE-----
${wrapped} ${wrapped}
@ -154,8 +153,10 @@ ${wrapped}
export async function writeMappedKeys(keys: Map<Uint8Array, Iterable<string>>) { export async function writeMappedKeys(keys: Map<Uint8Array, Iterable<string>>) {
for (let [cert, paths] of keys.entries()) { for (let [cert, paths] of keys.entries()) {
let serialized = serializeCert(cert)
for (let path of paths) { for (let path of paths) {
let lineLength = (await readFile(path)).split('\n')[1].length
let serialized = serializeCert(cert, lineLength)
await fs.writeFile(path, serialized) await fs.writeFile(path, serialized)
} }
} }