PowerShell-Encoded-Commands-Tool/PowerShell.html at main · javelinsoft/PowerShell-Encoded-Commands-Tool · GitHub

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<!DOCTYPE html>
<html lang="en">
<!-- https://github.com/Javelinblog/PowerShell-Encoded-Commands-Tool -->
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>PowerShell EncodedCommand Tool</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #f5f5f5;
            margin: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
        }

        .container {
            text-align: center;
            max-width: 600px;
            padding: 20px;
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
        }

        textarea {
            width: 100%;
            padding: 10px;
            margin: 10px 0;
            box-sizing: border-box;
            border: 1px solid #ccc;
            border-radius: 4px;
            resize: none;
            height: 30vh; /* Adjust the height as needed */
        }

        button {
            padding: 10px 20px;
            background-color: #4caf50;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }

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

        .copy-button {
            margin-top: 10px;
            background-color: #3498db;
        }

        .copy-button:hover {
            background-color: #2980b9;
        }
    </style>
</head>

<body>
    <div class="container">
        <h1>PowerShell EncodedCommand Tool</h1>
        <textarea id="inputTextArea" placeholder="Enter text to encode or decode"></textarea>
        <button id="encodeButton" onclick="encode()">Encode</button>
        <button id="decodeButton" onclick="decode()">Decode</button>
        <textarea id="outputTextArea" placeholder="Result will appear here" readonly></textarea>
        <button class="copy-button" onclick="copyToClipboard()">Copy to Clipboard</button>
    </div>

    <script>
        function encode() {
            const inputText = document.getElementById('inputTextArea').value;
            const outputTextArea = document.getElementById('outputTextArea');

            // Encoding logic (to Base64 with UTF-16LE)
            try {
                const utf16leEncodedText = encodeToBase64WithUTF16LE(inputText);
                outputTextArea.value = utf16leEncodedText;
            } catch (error) {
                outputTextArea.value = 'Invalid input for encoding';
            }
        }

        function decode() {
            const inputText = document.getElementById('inputTextArea').value;
            const outputTextArea = document.getElementById('outputTextArea');

            // Decoding logic (from Base64 with UTF-16LE)
            try {
                const utf16leDecodedText = new TextDecoder('utf-16le').decode(Uint8Array.from(atob(inputText), c => c.charCodeAt(0)));
                outputTextArea.value = utf16leDecodedText;
            } catch (error) {
                outputTextArea.value = 'Invalid Base64 input';
            }
        }

        function copyToClipboard() {
            const outputTextArea = document.getElementById('outputTextArea');
            outputTextArea.select();
            document.execCommand('copy');
        }

        function encodeToBase64WithUTF16LE(text) {
            const utf16leBytes = [];
            for (let i = 0; i < text.length; i++) {
                const charCode = text.charCodeAt(i);
                utf16leBytes.push(charCode & 0xFF, (charCode >> 8) & 0xFF);
            }
            const utf16leArray = new Uint8Array(utf16leBytes);
            return btoa(String.fromCharCode(...utf16leArray));
        }
    </script>
</body>

</html>