Password-Generator/index.html at main · NeaByteLab/Password-Generator · GitHub

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<!DOCTYPE html>
<html lang="id">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Password Generator</title>
  <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css" rel="stylesheet">
  <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;700&display=swap" rel="stylesheet">
  <script src="https://cdn.tailwindcss.com"></script>
  <style>
    body { font-family: 'Open Sans', sans-serif }
    input[type="range"]::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #3B82F6;
      cursor: pointer;
      box-shadow: 0 0 5px rgba(0, 0, 0, 0.2)
    }
    input[type="range"]::-moz-range-thumb {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #3B82F6;
      cursor: pointer;
      box-shadow: 0 0 5px rgba(0, 0, 0, 0.2)
    }
    .password-copied-notification {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #10B981;
      color: white;
      padding: 10px 20px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      opacity: 0;
      transition: opacity 0.3s ease-in-out;
      z-index: 1000
    }
    .password-copied-notification.show {
      opacity: 1
    }
  </style>
</head>
<body class="bg-gradient-to-br from-blue-100 to-purple-100 min-h-screen flex items-center justify-center p-4">
  <div class="bg-white shadow-2xl rounded-xl p-8 w-full max-w-md border border-gray-200">
    <h1 class="text-3xl font-bold mb-6 text-center text-gray-800">Password Generator</h1>
    <div class="flex items-center border border-gray-300 rounded-xl overflow-hidden mb-5 shadow-sm">
      <input id="password" type="text" readonly
             class="w-full p-3 bg-gray-50 text-gray-800 text-lg font-mono outline-none"
             placeholder="Generated password..."
             aria-live="polite" aria-atomic="true">
      <button id="generateBtn"
              class="bg-blue-600 hover:bg-blue-700 active:bg-blue-800 text-white px-4 py-3 rounded-r-xl transition-colors duration-200"
              aria-label="Generate new password">
        <i class="fa-solid fa-dice text-xl"></i>
      </button>
    </div>
    <div class="mb-5">
      <button id="copyBtn"
              class="w-full flex items-center justify-center gap-2 bg-green-600 hover:bg-green-700 active:bg-green-800 text-white py-3 rounded-xl transition-colors duration-200 shadow-md">
        <i class="fa-solid fa-copy"></i> Copy Password
      </button>
    </div>
    <div class="mb-6 space-y-3">
      <label for="includeUpper" class="flex items-center gap-3 text-gray-700 text-lg cursor-pointer">
        <input type="checkbox" id="includeUpper" class="accent-blue-600 w-5 h-5 rounded-md" checked> Uppercase (A-Z)
      </label>
      <label for="includeLower" class="flex items-center gap-3 text-gray-700 text-lg cursor-pointer">
        <input type="checkbox" id="includeLower" class="accent-blue-600 w-5 h-5 rounded-md" checked> Lowercase (a-z)
      </label>
      <label for="includeNumber" class="flex items-center gap-3 text-gray-700 text-lg cursor-pointer">
        <input type="checkbox" id="includeNumber" class="accent-blue-600 w-5 h-5 rounded-md" checked> Numbers (0-9)
      </label>
      <label for="includeSymbol" class="flex items-center gap-3 text-gray-700 text-lg cursor-pointer">
        <input type="checkbox" id="includeSymbol" class="accent-blue-600 w-5 h-5 rounded-md"> Symbols (!@#$)
      </label>
    </div>
    <div class="mb-6">
      <label for="lengthRange" class="block text-lg font-medium mb-2 text-gray-700">Character Length: <span id="lengthVal" class="text-blue-600 font-bold">12</span></label>
      <input type="range" id="lengthRange" min="6" max="32" value="12" class="w-full h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer">
    </div>
    <div class="bg-gray-50 rounded-xl p-4 text-base border border-gray-200">
      <div class="flex items-center gap-3">
        <i id="strengthIcon" class="fa-solid fa-circle-question text-gray-400 text-xl"></i>
        <span id="strengthText" class="text-gray-600 font-medium">Strength: -</span>
      </div>
      <div id="strengthBarContainer" class="mt-3 h-2 rounded-full bg-gray-300 overflow-hidden hidden">
        <div id="strengthBar" class="h-full rounded-full transition-all duration-300 ease-in-out" style="width: 0%;"></div>
      </div>
    </div>
  </div>
  <div id="copiedNotification" class="password-copied-notification">
    <i class="fa-solid fa-check mr-2"></i> Password copied!
  </div>
  <script>
    const passwordInput = document.getElementById('password')
    const copyButton = document.getElementById('copyBtn')
    const generateButton = document.getElementById('generateBtn')
    const lengthSlider = document.getElementById('lengthRange')
    const lengthValueText = document.getElementById('lengthVal')
    const strengthIndicatorText = document.getElementById('strengthText')
    const strengthIndicatorIcon = document.getElementById('strengthIcon')
    const strengthDisplayBar = document.getElementById('strengthBar')
    const strengthBarVisualContainer = document.getElementById('strengthBarContainer')
    const copiedMessageNotification = document.getElementById('copiedNotification')
    const includeUpperCaseCheckbox = document.getElementById('includeUpper')
    const includeLowerCaseCheckbox = document.getElementById('includeLower')
    const includeNumberCheckbox = document.getElementById('includeNumber')
    const includeSymbolCheckbox = document.getElementById('includeSymbol')

    // Character Sets
    const CHARACTER_SETS_DEFINITION = {
      upperCase: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
      lowerCase: 'abcdefghijklmnopqrstuvwxyz',
      numericDigits: '0123456789',
      specialSymbols: '!@#$%^&*()_+-=[]{}|;:,.<>/?~`'
    }

    /**
     * Shows A Temporary Notification Message
     * Params: MessageText
     */
    function showTemporaryNotification (messageText) {
      copiedMessageNotification.textContent = messageText
      copiedMessageNotification.classList.add('show')
      setTimeout(() => {
        copiedMessageNotification.classList.remove('show')
      }, 1500)
    }

    /**
     * Copies The Generated Password To The Clipboard
     */
    function copyGeneratedPassword () {
      if (!(passwordInput.value === '')) {
        navigator.clipboard.writeText(passwordInput.value)
          .then(() => showTemporaryNotification('Password copied!'))
          .catch(errorDetails => {
            console.error('Failed To Copy Password: ', errorDetails)
            try {
              const temporaryInput = document.createElement('textarea')
              temporaryInput.value = passwordInput.value
              document.body.appendChild(temporaryInput)
              temporaryInput.select()
              document.execCommand('copy')
              document.body.removeChild(temporaryInput)
              showTemporaryNotification('Password copied! (fallback)')
            } catch (fallbackErrorDetails) {
              console.error('Fallback Copy Failed: ', fallbackErrorDetails)
              showTemporaryNotification('Could Not Copy Password')
            }
          })
      } else {
        showTemporaryNotification('No Password To Copy')
      }
    }

    /**
     * Generates A Random Password Based On Selected Criteria
     */
    function generateNewPassword () {
      let characterSet = ''
      const passwordLength = parseInt(lengthSlider.value)

      if (includeUpperCaseCheckbox.checked) {
        characterSet += CHARACTER_SETS_DEFINITION.upperCase
      }
      if (includeLowerCaseCheckbox.checked) {
        characterSet += CHARACTER_SETS_DEFINITION.lowerCase
      }
      if (includeNumberCheckbox.checked) {
        characterSet += CHARACTER_SETS_DEFINITION.numericDigits
      }
      if (includeSymbolCheckbox.checked) {
        characterSet += CHARACTER_SETS_DEFINITION.specialSymbols
      }
      if (characterSet === '') {
        passwordInput.value = ''
        strengthIndicatorText.textContent = 'Strength: -'
        strengthIndicatorText.className = 'text-gray-600 font-medium'
        strengthIndicatorIcon.className = 'fa-solid fa-circle-question text-gray-400 text-xl'
        strengthBarVisualContainer.classList.add('hidden')
        return
      }
      let generatedPassword = ''
      if (includeUpperCaseCheckbox.checked) {
        generatedPassword += getRandomCharacter(CHARACTER_SETS_DEFINITION.upperCase)
      }
      if (includeLowerCaseCheckbox.checked) {
        generatedPassword += getRandomCharacter(CHARACTER_SETS_DEFINITION.lowerCase)
      }
      if (includeNumberCheckbox.checked) {
        generatedPassword += getRandomCharacter(CHARACTER_SETS_DEFINITION.numericDigits)
      }
      if (includeSymbolCheckbox.checked) {
        generatedPassword += getRandomCharacter(CHARACTER_SETS_DEFINITION.specialSymbols)
      }
      for (let currentIteration = generatedPassword.length; currentIteration < passwordLength; currentIteration++) {
        generatedPassword += getRandomCharacter(characterSet)
      }
      generatedPassword = shufflePasswordString(generatedPassword)
      passwordInput.value = generatedPassword
      updatePasswordStrength(generatedPassword)
    }

    /**
     * Gets A Random Character From A Given Character Set
     * Params: CharSet
     */
    function getRandomCharacter (charSet) {
      const randomIndex = Math.floor(Math.random() * charSet.length)
      return charSet[randomIndex]
    }

    /**
     * Shuffles A String Randomly
     * Params: StringToShuffle
     */
    function shufflePasswordString (stringToShuffle) {
      let characterArray = stringToShuffle.split('')
      for (let currentIteration = characterArray.length - 1; currentIteration > 0; currentIteration--) {
        const randomSwapIndex = Math.floor(Math.random() * (currentIteration + 1))
        let temporaryStorage = characterArray[currentIteration]
        characterArray[currentIteration] = characterArray[randomSwapIndex]
        characterArray[randomSwapIndex] = temporaryStorage
      }
      return characterArray.join('')
    }

    /**
     * Updates The Password Strength Indicator
     * Params: PasswordString
     */
    function updatePasswordStrength (passwordString) {
      let strengthScore = 0
      if (/[a-z]/.test(passwordString)) {
        strengthScore++
      }
      if (/[A-Z]/.test(passwordString)) {
        strengthScore++
      }
      if (/[0-9]/.test(passwordString)) {
        strengthScore++
      }
      if (/[!@#$%^&*()_+-=\[\]{}|;:,.<>/?~`]/.test(passwordString)) {
        strengthScore++
      }
      if (passwordString.length >= 8) {
        strengthScore++
      }
      if (passwordString.length >= 12) {
        strengthScore++
      }
      if (passwordString.length >= 16) {
        strengthScore++
      }
      if (passwordString.length >= 20) {
        strengthScore++
      }
      let currentStrengthStatus = ''
      let visualColorClass = ''
      let iconDisplayClass = ''
      let barFillColor = ''
      let barFillWidth = 0
      if (strengthScore <= 2) {
        currentStrengthStatus = 'Weak'
        visualColorClass = 'text-red-600'
        iconDisplayClass = 'fa-solid fa-triangle-exclamation'
        barFillColor = 'bg-red-500'
        barFillWidth = (strengthScore / 5) * 100
      } else if (strengthScore <= 4) {
        currentStrengthStatus = 'Medium'
        visualColorClass = 'text-orange-500'
        iconDisplayClass = 'fa-solid fa-shield-halved'
        barFillColor = 'bg-orange-400'
        barFillWidth = (strengthScore / 5) * 100
      } else {
        currentStrengthStatus = 'Strong'
        visualColorClass = 'text-green-600'
        iconDisplayClass = 'fa-solid fa-circle-check'
        barFillColor = 'bg-green-500'
        barFillWidth = (strengthScore / 5) * 100
      }
      strengthIndicatorText.textContent = `Strength: ${currentStrengthStatus}`
      strengthIndicatorText.className = `${visualColorClass} font-medium`
      strengthIndicatorIcon.className = `${iconDisplayClass} ${visualColorClass} text-xl`
      strengthBarVisualContainer.classList.remove('hidden')
      strengthDisplayBar.style.width = `${barFillWidth}%`
      strengthDisplayBar.className = `h-full rounded-full transition-all duration-300 ease-in-out ${barFillColor}`
    }

    [includeUpperCaseCheckbox, includeLowerCaseCheckbox, includeNumberCheckbox, includeSymbolCheckbox].forEach(htmlElement => {
      htmlElement.addEventListener('change', generateNewPassword)
    })
    lengthSlider.addEventListener('input', () => {
      lengthValueText.textContent = lengthSlider.value
      generateNewPassword()
    })
    generateButton.addEventListener('click', generateNewPassword)
    copyButton.addEventListener('click', copyGeneratedPassword)
    window.onload = generateNewPassword
  </script>
</body>
</html>