PassWordGenerator/script.js at master · ArpanCodeX/PassWordGenerator · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
const passWordBox = document.getElementById("password");
const passwordLengthInput = document.getElementById("passwordLength");
const lengthWarning = document.getElementById("lengthWarning");
const defaultLabel = document.getElementById("defaultLabel");

const upperCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const lowerCase = "abcdefghijklmnopqrstuvwxyz";
const numbers = "0123456789";
const symbols = "!@#$%^&*()_+-=[]{}|;:,.<>?";

const checkboxes = [
  document.getElementById("excludeSpecial"),
  document.getElementById("excludeNumbers"),
  document.getElementById("excludeUpper"),
  document.getElementById("excludeLower"),
];

window.addEventListener("DOMContentLoaded", () => {
  if (parseInt(passwordLengthInput.value) === 12) {
    passwordLengthInput.style.opacity = "0.5";
    defaultLabel.style.display = "inline";
    defaultLabel.style.opacity = "0.5";
  } else {
    passwordLengthInput.style.opacity = "1";
    defaultLabel.style.display = "none";
  }
});

function handleOpacity(input) {
  const val = parseInt(input.value);
  if (isNaN(val) || val < 4 || val > 20 || val === 12) {
    input.style.opacity = "0.5";
    defaultLabel.style.display = val === 12 ? "inline" : "none";
    defaultLabel.style.opacity = "0.5";
    lengthWarning.style.display = (val < 4 || val > 20) ? "block" : "none";
  } else {
    input.style.opacity = "1";
    defaultLabel.style.display = "none";
    lengthWarning.style.display = "none";
  }
}

function setDefaultIfEmpty(input) {
  const val = parseInt(input.value);
  if (!input.value || val < 4 || val > 20 || val === 12) {
    input.value = 12;
    input.style.opacity = "0.5";
    defaultLabel.style.display = "inline";
    defaultLabel.style.opacity = "0.5";
    lengthWarning.style.display = "none";
  } else {
    input.style.opacity = "1";
    defaultLabel.style.display = "none";
    lengthWarning.style.display = "none";
  }
}

passwordLengthInput.addEventListener("keydown", (e) => {
  if ((e.key === "ArrowUp" || e.key === "ArrowDown") && passwordLengthInput.value === '') {
    e.preventDefault();
    const min = parseInt(passwordLengthInput.min);
    const max = parseInt(passwordLengthInput.max);
    let newVal = e.key === "ArrowUp" ? Math.min(13, max) : Math.max(11, min);
    passwordLengthInput.value = newVal;
    passwordLengthInput.style.opacity = "1";
    defaultLabel.style.display = newVal === 12 ? "inline" : "none";
    defaultLabel.style.opacity = newVal === 12 ? "0.5" : "1";
    lengthWarning.style.display = "none";
  }
});

function limitCheckboxes() {
  const checkedCount = checkboxes.filter(cb => cb.checked).length;
  checkboxes.forEach(cb => {
    cb.disabled = !cb.checked && checkedCount >= 3;
  });
}
checkboxes.forEach(cb => cb.addEventListener("change", limitCheckboxes));

function createPass() {
  let lengthOfPassword = parseInt(passwordLengthInput.value);
  if (isNaN(lengthOfPassword) || lengthOfPassword < 4) {
    lengthOfPassword = 12;
  }

  const excludeSpecial = document.getElementById("excludeSpecial").checked;
  const excludeNumbers = document.getElementById("excludeNumbers").checked;
  const excludeUpper = document.getElementById("excludeUpper").checked;
  const excludeLower = document.getElementById("excludeLower").checked;

  const exclusions = [
    excludeSpecial,
    excludeNumbers,
    excludeUpper,
    excludeLower,
  ].filter(Boolean).length;

  if (exclusions > 3) {
    alert("You can exclude a maximum of three types. At least one type must be included.");
    return;
  }

  let charSet = "";
  let requiredChars = [];

  if (!excludeUpper) {
    charSet += upperCase;
    requiredChars.push(randomChar(upperCase));
  }
  if (!excludeLower) {
    charSet += lowerCase;
    requiredChars.push(randomChar(lowerCase));
  }
  if (!excludeNumbers) {
    charSet += numbers;
    requiredChars.push(randomChar(numbers));
  }
  if (!excludeSpecial) {
    charSet += symbols;
    requiredChars.push(randomChar(symbols));
  }

  if (charSet.length === 0) {
    alert("No character types selected. Cannot generate password.");
    return;
  }

  let password = requiredChars.join("");
  while (password.length < lengthOfPassword) {
    password += randomChar(charSet);
  }

  passWordBox.value = shuffle(password);
}

function randomChar(str) {
  return str[Math.floor(Math.random() * str.length)];
}

function shuffle(str) {
  return str.split("").sort(() => Math.random() - 0.5).join("");
}

function copyPass() {
  passWordBox.select();
  document.execCommand("copy");
}