/* Password Validator by Pete Wright v1.0.0 */ // global variables var ASCII_CHARACTERS; var SPECIAL_CHARACTERS_REGEX; var INVALID_CHARACTERS_REGEX; var INVALID_CHARACTERS_REGEX2; var PASSWORD_CURRENT; var PASSWORD_LIST; var ERROR_MESSAGE; var OPTIONS; // some useful functions function el(e) { return document.getElementById(e); } function t() { return new Date().toTimeString().slice(0,8); } function makeUnique(str) { return String.prototype.concat(...new Set(str)) } // source: https://www.w3resource.com/javascript-exercises/javascript-function-exercise-4.php function sortStringCharacters(string) { return string.split('').sort().join(''); } // source: https://codepen.io/w3resource/pen/MEvqeB function getUniqueCharacters(string) { var str = string; var uniql = ""; for (var x=0;x < str.length;x++) { if(uniql.indexOf(str.charAt(x))==-1) uniql += str[x]; } return uniql; } function initializeGlobalVariables() { // ASCII characters: 33 - 126 / chars[0] - chars[93] ASCII_CHARACTERS = "!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~"; SPECIAL_CHARACTERS_REGEX = /[\!\"#\$%&\'\*\+,\-\.\/\:\;<\=>\?@\[\\\]\^_`\{\|\}~]/g; INVALID_CHARACTERS_REGEX = /[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789\!\"#\$%&\'\*\+,\-\.\/\:\;<\=>\?@\[\\\]\^_`\{\|\}~]/g; INVALID_CHARACTERS_REGEX2 = /[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789\!\"#\$%&\'\*\+,\-\.\/\:\;<\=>\?@\[\\\]\^_`\{\|\}~\ ]/g; PASSWORD_CURRENT = ""; PASSWORD_LIST = []; ERROR_MESSAGE = "(" + t() + ") Error. User abort."; OPTIONS = true; } function clearTable() { el("tbod").innerHTML = ""; el("pwlen").innerHTML = ""; PASSWORD_LIST = []; } function makeList(listItems, Element) { var listElementsArray = listItems; var listElement = Element; for (var i = 0; i < listElementsArray.length; i++ ) { var li = document.createElement("li"); var txt = document.createTextNode(listElementsArray[i]); li.appendChild(txt); listElement.appendChild(li); } } function checkboxesStatus() { var a = []; a[0] = (el("chkLo").checked === true) ? 1 : 0; a[1] = (el("chkUp").checked === true) ? 1 : 0; a[2] = (el("chkDi").checked === true) ? 1 : 0; a[3] = (el("chkSp").checked === true) ? 1 : 0; if (a[0] === 0 && a[1] === 0 && a[2] === 0 && a[3] === 0) { OPTIONS = false; return false; } else { OPTIONS = true; return a; } } function radioButtonsStatus() { var r = 8; switch(true) { case el("r8").checked: r = 8; break; case el("r10").checked: r = 10; break; case el("r12").checked: r = 12; break; default: alert("Oops! This shouldn't happen :("); } return r; } function precheckPassword(passwordToCheck) { var x = passwordToCheck; var s = x.match(/[ ]/g); var v = x.match(INVALID_CHARACTERS_REGEX); s = (s === null) ? 0 : s.length; v = (v === null) ? 0 : v.length; if (s > 0 || v > 0) return false; else return true; } function isValidPassword(passwordToCheck, checkboxesArray) { var x = passwordToCheck; var a = checkboxesArray; var m = radioButtonsStatus(); var k = precheckPassword(x); if (k === false) return false; else if (x.length > 32) return false; else if (x.length < m) return false; else if (a === false) return false; else { var l = x.match(/[a-z]/g); var u = x.match(/[A-Z]/g); var d = x.match(/[0-9]/g); var s = x.match(SPECIAL_CHARACTERS_REGEX); l = (l === null) ? 0 : l.length; u = (u === null) ? 0 : u.length; d = (d === null) ? 0 : d.length; s = (s === null) ? 0 : s.length; if (l >= a[0] && u >= a[1] && d >= a[2] && s >= a[3]) { return true; } else return false; } } function outputPassword(validPasswordBooleanParameter) { var validPasswordBoolean = validPasswordBooleanParameter; var validPasswordText = (validPasswordBoolean) ? "valid" : "invalid"; var validPasswordRequirements = (validPasswordBoolean) ? "meets the selected requirements" : "doesn't meet the selected requirements"; var validPasswordSymbolHTML = (validPasswordBoolean) ? "✔" : "✘"; var missingRequirements = []; var passwordListArray = PASSWORD_LIST; var passwordCurrentLength = PASSWORD_CURRENT.length; var passwordListArrayLength = passwordListArray.length; var tempPasswordString = passwordListArray[passwordListArrayLength-1]; var passwordString = tempPasswordString.replace(/[<]/g,"<"); var timestring = t(); var requirementsListElement = el("lst"); while (requirementsListElement.hasChildNodes()) { requirementsListElement.removeChild(requirementsListElement.firstChild); } if (validPasswordBoolean === false) { var q = []; var c = checkboxesStatus(); var r = radioButtonsStatus(); var p = passwordCurrentLength; var x = PASSWORD_CURRENT; var l = x.match(/[a-z]/g); var u = x.match(/[A-Z]/g); var d = x.match(/[0-9]/g); var s = x.match(SPECIAL_CHARACTERS_REGEX); var a = x.match(/[ ]/g); var w = x.match(INVALID_CHARACTERS_REGEX2); l = (l === null) ? 0 : l.length; u = (u === null) ? 0 : u.length; d = (d === null) ? 0 : d.length; s = (s === null) ? 0 : s.length; a = (a === null) ? 0 : a.length; w = (w === null) ? 0 : w.length; if (w > 0) { var v1 = x.match(INVALID_CHARACTERS_REGEX2); var v2 = v1.join(""); var v3 = getUniqueCharacters(v2); var v4 = sortStringCharacters(v3); q[q.length] = "the following characters are not allowed: " + v4; } if (a > 0) q[q.length] = "your password contains spaces"; if (l < c[0]) q[q.length] = "your password doesn't contain lowercase letters (a-z)"; if (u < c[1]) q[q.length] = "your password doesn't contain uppercase letters (A-Z)"; if (d < c[2]) q[q.length] = "your password doesn't contain digits (0-9)"; if (s < c[3]) q[q.length] = "your password doesn't contain any special characters"; if (p < r) q[q.length] = "your password is too short. It contains " + p + " characters, but " + r + " characters are required"; if (p > 32) q[q.length] = "your password is too long. Maximum 32 characters allowed"; missingRequirements = q; makeList(missingRequirements, requirementsListElement); } var table = el("tbl"); var tableRow = table.insertRow(-1); var cell1 = tableRow.insertCell(0); var cell2 = tableRow.insertCell(1); var cell3 = tableRow.insertCell(2); var cell4 = tableRow.insertCell(3); var cell5 = tableRow.insertCell(4); cell1.innerHTML = passwordListArrayLength; cell1.setAttribute("class", "count"); cell2.innerHTML = timestring; cell2.setAttribute("class", "timestamp"); cell3.innerHTML = passwordCurrentLength; cell3.setAttribute("class", "length"); cell4.innerHTML = validPasswordSymbolHTML; cell5.innerHTML = passwordString; el("pwlen").innerHTML = "(" + passwordListArrayLength + ")"; el("curr").innerHTML = passwordString; el("currReq").innerHTML = validPasswordRequirements; alert("your password is " + validPasswordText); } function getUserInput() { var userInput = prompt("please enter your password",""); if (userInput === null) { console.error(ERROR_MESSAGE); return false; } else return userInput; } function validatePassword() { var checkboxes = checkboxesStatus(); var newPassword = ""; var validPasswordBoolean = false; if (OPTIONS === false) alert("you need to check at least one option!"); else { do { newPassword = getUserInput(); if (newPassword === false) return false; else if (newPassword === "") return false; else { PASSWORD_CURRENT = newPassword; PASSWORD_LIST[PASSWORD_LIST.length] = PASSWORD_CURRENT; validPasswordBoolean = isValidPassword(PASSWORD_CURRENT, checkboxes); outputPassword(validPasswordBoolean); } } while (confirm("validate another password?") === true); } }

[challenge] Password Validator