xta/jwt.html

## jwt.html
<!doctype html>

<html>
    <head>
        <meta charset='utf-8'>
        <title>JWT.io local version</title>
        <style>
            textarea {
                width: 400px;
                height: 200px;
            }
            input[type="text"] {
                width: 100%;
            }
        </style>
    </head>
    <body>
        <h1>JWT.io local version</h1>
        <h2>JWT encoded value</h2>
        <textarea id="input" oninput="calc();"></textarea><br />
        <h2>jwt header</h2>
        <textarea id="header"></textarea><br />
        <h2>jwt payload</h2>
        <textarea id="payload"></textarea><br />
        <h3>encoder</h3>
        <textarea id="encoderInput" oninput="enc();">{"alg":"None"}</textarea>
        <textarea id="encoderOutput"></textarea>
        <script>
            function pretty(jsonStr) {
                return JSON.stringify(JSON.parse(jsonStr), null, 4);
            }
            function enc() {
                var encoderInput = document.getElementById('encoderInput');
                var encoderOutput = document.getElementById('encoderOutput');
                encoderOutput.value = btoa(encoderInput.value);
            }
            enc();
            function calc() {
                var input = document.getElementById('input');
                var header = document.getElementById('header');
                var payload = document.getElementById('payload');
                if (input && input.value) {
                        var val = input.value.split('.');
                    try {
                        header.value = pretty(atob(val[0]));
                    } catch(e) {
                        header.value = "Invalid value: " + e;
                        console.error(e)
                    }
                    try {
                        payload.value = pretty(atob(val[1]));
                    } catch(e) {
                        payload.value = "Invalid value: " + e;
                        console.error(e);
                    }
                } else {
                    console.log('no data');
                }
            }
        </script>
    </body>
</html>
	<!doctype html>

	<html>
	<head>
	<meta charset='utf-8'>
	<title>JWT.io local version</title>
	<style>
	textarea {
	width: 400px;
	height: 200px;
	}
	input[type="text"] {
	width: 100%;
	}
	</style>
	</head>
	<body>
	<h1>JWT.io local version</h1>
	<h2>JWT encoded value</h2>
	<textarea id="input" oninput="calc();"></textarea><br />
	<h2>jwt header</h2>
	<textarea id="header"></textarea><br />
	<h2>jwt payload</h2>
	<textarea id="payload"></textarea><br />
	<h3>encoder</h3>
	<textarea id="encoderInput" oninput="enc();">{"alg":"None"}</textarea>
	<textarea id="encoderOutput"></textarea>
	<script>
	function pretty(jsonStr) {
	return JSON.stringify(JSON.parse(jsonStr), null, 4);
	}
	function enc() {
	var encoderInput = document.getElementById('encoderInput');
	var encoderOutput = document.getElementById('encoderOutput');
	encoderOutput.value = btoa(encoderInput.value);
	}
	enc();
	function calc() {
	var input = document.getElementById('input');
	var header = document.getElementById('header');
	var payload = document.getElementById('payload');
	if (input && input.value) {
	var val = input.value.split('.');
	try {
	header.value = pretty(atob(val[0]));
	} catch(e) {
	header.value = "Invalid value: " + e;
	console.error(e)
	}
	try {
	payload.value = pretty(atob(val[1]));
	} catch(e) {
	payload.value = "Invalid value: " + e;
	console.error(e);
	}
	} else {
	console.log('no data');
	}
	}
	</script>
	</body>
	</html>