You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

97 lines
2.2 KiB

'use strict'
module.exports = {
groupRedact,
groupRestore,
nestedRedact,
nestedRestore
}
function groupRestore ({ keys, values, target }) {
if (target == null) return
const length = keys.length
for (var i = 0; i < length; i++) {
const k = keys[i]
target[k] = values[i]
}
}
function groupRedact (o, path, censor, isCensorFct) {
const target = get(o, path)
if (target == null) return { keys: null, values: null, target: null, flat: true }
const keys = Object.keys(target)
const length = keys.length
const values = new Array(length)
for (var i = 0; i < length; i++) {
const k = keys[i]
values[i] = target[k]
target[k] = isCensorFct ? censor(target[k]) : censor
}
return { keys, values, target, flat: true }
}
function nestedRestore (arr) {
const length = arr.length
for (var i = 0; i < length; i++) {
const { key, target, value } = arr[i]
target[key] = value
}
}
function nestedRedact (store, o, path, ns, censor, isCensorFct) {
const target = get(o, path)
if (target == null) return
const keys = Object.keys(target)
const length = keys.length
for (var i = 0; i < length; i++) {
const key = keys[i]
const { value, parent, exists } = specialSet(target, key, ns, censor, isCensorFct)
if (exists === true && parent !== null) {
store.push({ key: ns[ns.length - 1], target: parent, value })
}
}
return store
}
function has (obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop)
}
function specialSet (o, k, p, v, f) {
var i = -1
var l = p.length
var li = l - 1
var n
var nv
var ov
var oov = null
var exists = true
ov = n = o[k]
if (typeof n !== 'object') return { value: null, parent: null, exists }
while (n != null && ++i < l) {
k = p[i]
oov = ov
if (!(k in n)) {
exists = false
break
}
ov = n[k]
nv = f ? v(ov) : v
nv = (i !== li) ? ov : nv
n[k] = (has(n, k) && nv === ov) || (nv === undefined && v !== undefined) ? n[k] : nv
n = n[k]
if (typeof n !== 'object') break
}
return { value: ov, parent: oov, exists }
}
function get (o, p) {
var i = -1
var l = p.length
var n = o
while (n != null && ++i < l) {
n = n[p[i]]
}
return n
}