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@Yagisanatode
Created December 28, 2023 04:48
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For tutorial on CSRF in Google Apps Script for Yagisanatode blog
<!DOCTYPE html>
<html>
<head>
<base target="_top">
<link rel="stylesheet" href="https://ssl.gstatic.com/docs/script/css/add-ons1.css">
</head>
<body>
<div id="container">
<h1>Choose Your Goat</h1>
<form id="goatForm" onsubmit="event.preventDefault();">
<input type="hidden" name="_csrf" value="<?= getCsrfToken() ?>" />
<label for="goat_type">Type of Goat:</label><br>
<input type="radio" name="goat_type" id="goat_type_pygmy" value="pygmy">
<label for="goat_type_pygmy">Pygmy Goat</label><br>
<input type="radio" name="goat_type" id="goat_type_nigerian_dwarf" value="nigerian_dwarf">
<label for="goat_type_nigerian_dwarf">Nigerian Dwarf Goat</label><br>
<input type="radio" name="goat_type" id="goat_type_boer" value="boer">
<label for="goat_type_boer">Boer Goat</label><br>
</form>
<input type="button" value="Submit" onclick="submit()">
<div id="resp">Response: <span id="response">...</span></div>
</div>
</body>
<script>
/**
* When the validation process is completed successfully without Apps Scripting errors.
* @param {String.<Object>} e - event parameter containing 'hasError' boolean and 'text' string.
*/
function onSuccess(e){
const message = JSON.parse(e)
let color = message.hasError? "red" : "blue"
const resp = document.getElementById("response")
resp.innerText = message.text
resp.style.color = color
}
/**
* Submits the response back to Google Apps Script.
*/
function submit(){
const form = document.getElementById('goatForm');
// Create a FormData object
const formData = new FormData(form);
let payload = {}
// Iterate over the form data
for (const [key, value] of formData.entries()) {
console.log(key, value);
Object.assign(payload, {[key]: value})
}
console.log(payload)
google.script.run.withSuccessHandler(onSuccess).formInputs(JSON.stringify(payload));
}
</script>
</html>
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