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import { email } from "https://esm.town/v/std/email?v=11";
// You can turn this on if needed. Check the readme!
const isBotProtectionOn = false;
const botProtectionAnswer = "0";
export default async function(req: Request): Promise<Response> {
// Get the data from URL's query params
const url = new URL(req.url);
let botProtectionInput = url.searchParams.get("botProtection");
let userContact = url.searchParams.get("userContact");
let userData = url.searchParams.get("userData");
// Check if query params are valid
const areInputsValid = validateInputs(botProtectionInput, userContact);
if (!areInputsValid.isValid) {
return Response.json({
success: false,
msg: areInputsValid.errorMsg,
});
}
// And send email!
await sendEmail(userContact, userData);
return Response.json({ ok: true });
}
async function sendEmail(userContact, userData) {
userContact = decodeURIComponent(userContact);
// Email body should have userData part only if it's present in query params
let userDataMsg = "";
if (userData != null) {
userData = decodeURIComponent(userData);
userDataMsg = `User data was: ${userData} \n`;
}
// Yay!
const subject = `You've got a new subscriber ${userContact}! 🎉`;
const text = `User with contact ${userContact} has signed up to your newsletter. \n ${userDataMsg} Let's goo! 🥂`;
await email({ subject, text });
}
function validateInputs(botProtectionInput, userContact) {
let isValid = true;
let errorMsg = "";
// Validate bot protection input only if it's turned on
if (isBotProtectionOn) {
botProtectionInput = decodeURIComponent(botProtectionInput);
if (botProtectionInput == null || botProtectionInput != botProtectionAnswer) {
isValid = false;
errorMsg += "botProtection failed, expected *** but answer was " + botProtectionInput + ". Bad bot! ";
}
}
// userContact is mandatory
if (userContact == null || userContact.trim() == "") {
isValid = false;
errorMsg +=
"userContact is missing. It should be a queryParam in the URL, like https://<val_url>?userContact=<user_contact> where user_contact is email, username, social link etc. Eg: https://<val_url>?userContact=dav.is@zohomail.in";
}
return { isValid, errorMsg };
}