CheckPasswordAssignment/CheckPassword.html at main · lelerer/CheckPasswordAssignment · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Password Validation</title>
    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            text-align: center;
            margin: 50px;
            background-color: #f4f4f4;
        }

        h1 {
            color: #333;
        }

        form {
            margin-top: 20px;
        }

        label {
            font-weight: bold;
            font-size: 1.2em;
            color: #555;
        }

        input {
            padding: 10px;
            font-size: 1em;
            margin-bottom: 15px;
        }

        button {
            padding: 10px 20px;
            font-size: 1em;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }

        button:hover {
            background-color: #45a049;
        }

        #result {
            font-size: 1.2em;
            margin-top: 20px;
            color: #333;
        }

        #errorMessage {
            font-size: 1em;
            color: brown;
        }

        #requirements {
            text-align: center;
            font-size: 1.2em;
            color: #555;
        }

        #requirements ul {
            text-align: left;
            list-style-type: none;
            padding: 0;
        }
    </style>
</head>

<body>
    <h1>Password Validation</h1>
    <form id="passwordForm">
        <label for="password">Enter Password:</label><br>
        <input type="password" id="password" name="password" required><br>
        <button type="button" onclick="validatePassword()">Validate Password</button>
    </form>

    <p id="result" style="color: brown;text-align: left;margin: unset;"></p>

    <div>
        <p id="errorMessage" style="margin: inherit;color: brown;text-align: left;"></p>
    </div>

    <div id="requirements">
        <p style="margin: unset;">Password Requirements</p>
        <div style="
        display: flex;
        justify-content: center;
        margin: unset;">
            <ul style="margin: unset;">
                <li>* Length of 8-16 characters.</li>
                <li>* Contains letters of the Latin alphabet and at least one digit.</li>
                <li>* Does not contain full English words.</li>
            </ul>
        </div>
    </div>
    <script>
        async function validatePassword() {
            document.getElementById("errorMessage").innerHTML = ""; // Reset error message
            const password = document.getElementById('password').value;
            let errors = [];

            try {
                validateLength(password, errors);
                validateLetters(password, errors);
                await validateNoEnglishWord(password, errors);
            } catch (error) {
                console.error('Error:', error);
            }

            // Display the result and errors
            const resultMessage = errors.length === 0 ? "Password is valid!" : "Password is invalid!";
            document.getElementById('result').innerHTML = resultMessage;

            if (errors.length > 0) {
                const errorMessage = errors.join("<br>");
                document.getElementById("errorMessage").innerHTML = errorMessage;
            }
        }

        function validateLength(password, errors) {
            if (password.length < 8 || password.length > 16) {
                errors.push("The password length is not between 8-16 characters.");
            }
        }

        function validateLetters(password, errors) {
            if (!/[0-9]/.test(password) || !/[a-zA-Z]/.test(password)) {
                errors.push("The password must contain letters of the Latin alphabet and at least one digit.");
            }
        }

        async function validateNoEnglishWord(password, errors) {
            // Fetch the list of English words from the file
            const response = await fetch('./wordList.txt');

            if (!response.ok) {
                errors.push('Network response was not ok');
                return;
            }

            const data = await response.text();

            // Split the words into an array
            const englishWords = data.split('\n').map(word => word.trim());

            const nonLatinRegex = /[^a-zA-Z]/g;
            passwordWords = password.split(nonLatinRegex);

            passwordWords = passwordWords.filter(Boolean);

            if (checkPresentWord(englishWords, passwordWords)) {
                errors.push("The password contains a full English word.");
            }

            // Check if any English word is present in the password
            function checkPresentWord(englishWords, passwordWords) {
                for (const passwordWord of passwordWords) {
                    for (const englishWord of englishWords) {
                        if ((passwordWord.toLowerCase() === englishWord.toLowerCase()) && englishWord.length != 1) {
                            return true;
                            break;
                        }
                    }
                }
                return false;
            }
        }

    </script>

</body>

</html>