initial javascript rewrite

main.js

@@ -0,0 +1,46 @@
+const nodemailer = require("nodemailer")
+const core = require("@actions/core")
+const fs = require("fs")
+
+function get_body(body) {
+    if (body.startsWith("file://")) {
+        body = body.replace("file://", "")
+        body = fs.readFileSync(body).toString()
+    }
+
+    return body
+}
+
+async function main() {
+    server_address = core.getInput("server_address", {required: true})
+    server_port = core.getInput("server_port", {required: true})
+    username = core.getInput("username", {required: true})
+    password = core.getInput("password", {required: true})
+    subject = core.getInput("subject", {required: true})
+    body = core.getInput("body", {required: true})
+    to = core.getInput("to", {required: true})
+    from = core.getInput("from", {required: true})
+    html = core.getInput("html")
+
+    transport = nodemailer.createTransport({
+        host: server_address,
+        port: server_port,
+        secure: server_port == "465",
+        auth: {
+            user: username,
+            pass: password,
+        }
+    })
+
+    info = await transport.sendMail({
+        from: `"${from}" <${username}>`,
+        to: to,
+        subject: subject,
+        text: !html ? get_body(body) : undefined,
+        html: html ? get_body(body) : undefined,
+    })
+
+    console.log(info)
+}
+
+main()