tsndr/cloudflare-worker-jwt
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Revert "support for base64 secrets"

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This reverts commit e29b2f5d26.
This commit is contained in:
Toby
2022-10-09 20:47:29 +02:00
parent 2190b6ed0d
commit 18e331716c
1 changed files with 17 additions and 19 deletions
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36
src/index.ts
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@@ -129,17 +129,6 @@ const algorithms: JwtAlgorithms = {
RS512: { name: 'RSASSA-PKCS1-v1_5', hash: { name: 'SHA-512' } }
}
function _parseSecret(secret: string): { raw: boolean, key: ArrayBuffer } {
if (secret.startsWith('-----BEGIN'))
return { raw: false, key: _str2ab(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, '')) }
// Check for Base64
if (/^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/.test(secret))
return { raw: true, key: base64UrlParse(secret) }
else
return { raw: true, key: _utf8ToUint8Array(secret) }
}
function _utf8ToUint8Array(str: string): Uint8Array {
return base64UrlParse(btoa(unescape(encodeURIComponent(str))))
}
@@ -211,9 +200,14 @@ export async function sign(payload: JwtPayload, secret: string, options: JwtSign
const payloadAsJSON = JSON.stringify(payload)
const partialToken = `${base64UrlStringify(_utf8ToUint8Array(JSON.stringify({ ...options.header, alg: options.algorithm })))}.${base64UrlStringify(_utf8ToUint8Array(payloadAsJSON))}`
const parsedSecret = _parseSecret(secret)
const key = await crypto.subtle.importKey(parsedSecret.raw ? 'raw' : 'pkcs8', parsedSecret.key, algorithm, false, ['sign'])
let keyFormat = 'raw'
let keyData
if (secret.startsWith('-----BEGIN')) {
keyFormat = 'pkcs8'
keyData = _str2ab(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, ''))
} else
keyData = _utf8ToUint8Array(secret)
const key = await crypto.subtle.importKey(keyFormat, keyData, algorithm, false, ['sign'])
const signature = await crypto.subtle.sign(algorithm, key, _utf8ToUint8Array(partialToken))
return `${partialToken}.${base64UrlStringify(new Uint8Array(signature))}`
@@ -275,11 +269,15 @@ export async function verify(token: string, secret: string, options: JwtVerifyOp
return false
}
const parsedSecret = _parseSecret(secret)
const key = await crypto.subtle.importKey(parsedSecret.raw ? 'raw' : 'spki', parsedSecret.key, algorithm, false, ['verify'])
return crypto.subtle.verify(algorithm, key, base64UrlParse(tokenParts[2]), _utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
let keyFormat = 'raw'
let keyData
if (secret.startsWith('-----BEGIN')) {
keyFormat = 'spki'
keyData = _str2ab(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, ''))
} else
keyData = _utf8ToUint8Array(secret)
const key = await crypto.subtle.importKey(keyFormat, keyData, algorithm, false, ['verify'])
return await crypto.subtle.verify(algorithm, key, base64UrlParse(tokenParts[2]), _utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
}
/**