react-native-masked-text/lib/masks/cpf.mask.js

Text and TextInput with mask for React Native applications

import BaseMask from './_base.mask'
import CustomMask from './custom.mask'

export const CPF_MASK = '999.999.999-99'

export const validateCPF = cpf => {
    if (cpf == '') {
        return true
    }

    cpf = cpf.replace(/\./gi, '').replace(/-/gi, '')
    var isValid = true
    var sum
    var rest
    var i
    i = 0
    sum = 0

    if (
        cpf.length != 11 ||
        cpf == '00000000000' ||
        cpf == '11111111111' ||
        cpf == '22222222222' ||
        cpf == '33333333333' ||
        cpf == '44444444444' ||
        cpf == '55555555555' ||
        cpf == '66666666666' ||
        cpf == '77777777777' ||
        cpf == '88888888888' ||
        cpf == '99999999999'
    ) {
        isValid = false
    }

    for (i = 1; i <= 9; i++) {
        sum = sum + parseInt(cpf.substring(i - 1, i)) * (11 - i)
    }

    rest = (sum * 10) % 11

    if (rest == 10 || rest == 11) {
        rest = 0
    }

    if (rest != parseInt(cpf.substring(9, 10))) {
        isValid = false
    }

    sum = 0

    for (i = 1; i <= 10; i++) {
        sum = sum + parseInt(cpf.substring(i - 1, i)) * (12 - i)
    }

    rest = (sum * 10) % 11

    if (rest == 10 || rest == 11) {
        rest = 0
    }
    if (rest != parseInt(cpf.substring(10, 11))) {
        isValid = false
    }

    return isValid
}

const maskOptions = { mask: CPF_MASK }

export default class CpfMask extends BaseMask {
    static getType() {
        return 'cpf'
    }

    getValue(value, settings) {
        return CustomMask.shared.getValue(value, maskOptions)
    }

    getRawValue(maskedValue, settings) {
        return super.removeNotNumbers(maskedValue)
    }

    validate(value, settings) {
        var isEmpty = (value || '').trim().length === 0
        return !isEmpty && validateCPF(value)
    }

    getMask(value, settings) {
        return CPF_MASK
    }
}