2024-02-17 22:15:43 +01:00
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"use strict";
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let newsletter_form;
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let newsletter_input_submit;
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let newsletter_feedback;
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let newsletter_feedback_wait;
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let newsletter_feedback_success;
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let newsletter_feedback_failure;
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window.addEventListener("load", function(){
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// STORE ELEMENTS //
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newsletter_form = document.getElementById("newsletter-signup-form");
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newsletter_input_submit = document.getElementById("newsletter-signup-form-submit");
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newsletter_feedback = document.getElementById("newsletter-signup-form-feedback");
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newsletter_feedback_wait = document.getElementById("newsletter-signup-form-feedback-wait");
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newsletter_feedback_success = document.getElementById("newsletter-signup-form-feedback-success");
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newsletter_feedback_failure = document.getElementById("newsletter-signup-form-feedback-failure");
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// INITIALIZE INPUTS //
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newsletter_init_submit();
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});
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/**
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* HELPER: Initialize submit button input.
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*/
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async function newsletter_init_submit(){
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// REGISTER CLICK HANDLER //
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newsletter_input_submit.addEventListener("click", newsletter_submit);
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}
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/**
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* CALLBACK: Maybe submit the form.
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*/
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async function newsletter_submit(){
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// SHOW WAIT FEEDBACK //
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newsletter_feedback.classList.remove("hidden", "gone");
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newsletter_form.classList.add("hidden");
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newsletter_feedback_wait.classList.remove("hidden", "gone");
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// COLLECT VALUES //
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// mail address
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const url_params = new URLSearchParams(window.location.search);
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let mail_address = url_params.get("mail_address");
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// verify_key
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let verify_key = url_params.get("key");
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// SEND API REQUEST //
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "/api/newsletter/subscribe", true);
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xhr.setRequestHeader("Content-Type", "application/json");
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2024-02-18 21:07:52 +01:00
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xhr.setRequestHeader("x-cookieless-csrf-protection", "42");
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2024-02-17 22:15:43 +01:00
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xhr.send(JSON.stringify({
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mail_address: mail_address,
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verify_key: verify_key
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}));
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xhr.onload = function(){
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let success = true;
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// validate http status code
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if(xhr.status !== 200) success = false;
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// check response
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if(success){
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let response = null;
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try {
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response = JSON.parse(xhr.response);
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} catch(e){}
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if(typeof response !== "object") success = false;
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if(success && response === null) success = false;
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if(success && response.success !== true) success = false;
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}
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// positive feedback
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if(success){
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newsletter_feedback_wait.classList.add("gone");
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newsletter_feedback_success.classList.remove("hidden", "gone");
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return;
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}
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// negative feedback
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newsletter_feedback_wait.classList.add("gone");
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newsletter_feedback_failure.classList.remove("hidden", "gone");
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}
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}
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