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implement generateUserId for node & clients that dont support crypto

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This commit is contained in:
Kevin Jahns 2017-07-22 18:37:48 +02:00
parent a19cfa1465
commit c97130abc4
1 changed files with 12 additions and 3 deletions
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9
src/Utils.js
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@ -821,9 +821,18 @@ export default function Utils (Y) {
Y.utils.createSmallLookupBuffer = createSmallLookupBuffer Y.utils.createSmallLookupBuffer = createSmallLookupBuffer
function generateUserId () { function generateUserId () {
if (crypto.getRandomValue != null) {
// browser
let arr = new Uint32Array(1) let arr = new Uint32Array(1)
crypto.getRandomValues(arr) crypto.getRandomValues(arr)
return arr[0] return arr[0]
} else if (crypto.randomBytes != null) {
// node
let buf = crypto.randomBytes(4)
return new Uint32Array(buf.buffer)[0]
} else {
Math.ceil(Math.random() * 0xFFFFFFFF)
}
} }
Y.utils.generateUserId = generateUserId Y.utils.generateUserId = generateUserId
} }