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#!/usr/bin/zx --quiet
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import { resolve, basename } from "path";
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const pwd = (await $`pwd`).stdout.replace("\n", "");
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const sexpr = require("sexpr-plus").parse;
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$`echo $PWD`;
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const path = resolve(process.env.PWD, process.argv.slice(-1)[0]);
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const mail_body = (await $`mu view ${path} -o sexp`).stdout;
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function parse_mail(sexp_string) {
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const array = sexpr(sexp_string)[0].content;
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const result = {};
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let i = 0;
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while (i < array.length) {
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result[array[i].content.slice(1)] = array[i + 1].content;
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i += 2;
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}
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return result;
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}
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const mail_obj = parse_mail(mail_body);
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let html =
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mail_obj["body-html"] && mail_obj["body-html"].match(/body/i) !== null
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? mail_obj["body-html"]
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: /* HTML */ `<html>
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<head>
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<meta charset="utf-8" />
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</head>
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<body>
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<pre style="white-space: pre-wrap">${mail_obj["body-txt"]}</pre>
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</body>
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</html>`;
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const attachments = (await $`mu extract ${path}`).stdout;
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function getSimpleHeader(body, header_name) {
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const regexp = new RegExp(`:${header_name} (.*)\n`);
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console.log("get simple header", header_name, body);
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return body.match(regexp)[1];
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}
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function formatAddress(sexp) {
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sexp = sexp
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.replace(/(^\(\(|\)\)$)/g, "")
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.replace(/"? \. "/, " <")
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.replace(/"$/, ">")
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.replace(/^"/, "")
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.replace(/^nil <(.*)>$/, "$1");
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return sexp;
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}
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function escape(str) {
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return str.replace(/</g, "<");
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}
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const to_download = attachments
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.split("\n")
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.slice(1)
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.map((line) => {
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//someimtes images have the wrong mime type, like for example in photos from straż miejska confirmation emails
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if (line.includes(".jpg") && line.includes("application/octet-stream")) {
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return line.replace("application/octet-stream", "image/jpg");
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} else {
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return line;
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}
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})
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.filter((line) => line.includes("image"))
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.map((line) => {
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return {
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filename: line.match(/\d+ (.*) image\//)[1],
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mime: line.match(/image\/[^ ]+/)[0],
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};
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});
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const attachment_info = attachments
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.split("\n")
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.slice(1)
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.map((line) => line.split(" ").slice(3))
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.filter((e) => e[0] != "<none>")
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.slice(0, -1)
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.map(([name, type, role, size1, size2]) => ({
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name,
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type,
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role,
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size: (size1 + " " + size2).replace(/[()]/g, ""),
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}))
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.filter(({ role }) => role == "[attach]");
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const files = await Promise.all(
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to_download.map(async ({ filename, mime }) => {
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await $`mu extract --overwrite --target-dir=/tmp ${path} ${filename}`;
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const base64 = (await $`base64 -w 0 < ${`/tmp/${filename}`}`).stdout;
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return { filename, base64, mime };
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})
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);
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const attachments_items = files
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.map(
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({ filename, mime, base64 }) => /* HTML */ `<li>
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${filename}<img style="width: 100%" src="data:${mime};base64,${base64}" />
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</li>`
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)
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.join("\n");
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html = html.replace(
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/<\/body>/i,
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/* HTML */ `<hr/><h3>Załączniki:</h3>
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<table><tbody>${attachment_info.map(
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(a) =>
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`<tr><th>${a.name}</th><td>${a.size}</td><td><em>${a.type}</em></td></tr>`
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)}<tbody></table>
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<ul>
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${attachments_items}
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</ul></body>`
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);
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const subject = getSimpleHeader(mail_body, "subject").slice(1, -1); // slice to remove "
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const from = formatAddress(getSimpleHeader(mail_body, "from"));
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const to = formatAddress(getSimpleHeader(mail_body, "to"));
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const date = await formatDate(getSimpleHeader(mail_body, "date"));
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html = html.replace(
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/<body>/i,
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`<meta charset="utf-8"><body>` +
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/* HTML */ `<h1>${subject}</h1>
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<table>
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<tr>
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<th>Temat wiadomości:</th>
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<td>${subject}</td>
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</tr>
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<tr>
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<th>Wysłano:</th>
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<td>${escape(date)}</td>
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</tr>
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<tr>
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<th>Od:</th>
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<td>${escape(from)}</td>
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</tr>
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<tr>
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<th>Do:</th>
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<td>${escape(to)}</td>
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</tr>
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</table>
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<hr />`
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);
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const output = (await $`mktemp --suffix=.html`).stdout.replace("\n", "");
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await fs.writeFile(output, html);
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const output_file = `${resolve(path, "../")}/${basename(path)}.pdf`.replace(
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",",
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" "
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);
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await $`wkhtmltopdf ${output} ${output_file}`;
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// console.log(pwd + "output.html");
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// console.log(mail_body);
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async function formatDate(sexp) {
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const parsed = (await $`emacsclient --eval ${`(decode-time '${sexp})`}`)
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.stdout;
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const [, minutes, hours, date, month, year] = parsed.split(" ");
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return `${year}-${month.padStart(2, "0")}-${date} ${hours}:${minutes.padStart(
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2,
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"0"
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)}`;
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}
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