76 lines
1.5 KiB
Plaintext
76 lines
1.5 KiB
Plaintext
const defaultOptions = [
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{
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id: 0,
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value: "Too weak",
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minDiversity: 0,
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minLength: 0
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},
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{
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id: 1,
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value: "Weak",
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minDiversity: 2,
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minLength: 6
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},
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{
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id: 2,
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value: "Medium",
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minDiversity: 4,
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minLength: 8
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},
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{
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id: 3,
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value: "Strong",
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minDiversity: 4,
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minLength: 10
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}
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]
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const passwordStrength = (password, options = defaultOptions, allowedSymbols="!@#$%^&*") => {
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let passwordCopy = password || ''
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options[0].minDiversity = 0,
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options[0].minLength = 0
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const rules = [
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{
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regex: "[a-z]",
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message: 'lowercase'
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},
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{
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regex: '[A-Z]',
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message: 'uppercase'
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},
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{
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regex: '[0-9]',
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message: 'number'
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},
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]
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if (allowedSymbols) {
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rules.push({
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regex: `[${allowedSymbols}]`,
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message: 'symbol'
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})
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}
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let strength = {}
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strength.contains = rules
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.filter(rule => new RegExp(`${rule.regex}`).test(passwordCopy))
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.map(rule => rule.message)
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strength.length = passwordCopy.length;
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let fulfilledOptions = options
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.filter(option => strength.contains.length >= option.minDiversity)
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.filter(option => strength.length >= option.minLength)
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.sort((o1, o2) => o2.id - o1.id)
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.map(option => ({id: option.id, value: option.value}))
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Object.assign(strength, fulfilledOptions[0])
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return strength;
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};
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module.exports = { passwordStrength, defaultOptions } |