From cc0f31f649963e638c1a8ef8d3c82358b784a158 Mon Sep 17 00:00:00 2001
From: titanism <101466223+titanism@users.noreply.github.com>
Date: Fri, 16 Aug 2024 08:06:45 -0500
Subject: [PATCH] fix: added parse DNS CSV script work in progress

---
 package.json             |  3 +-
 scripts/parse-dns-csv.js | 96 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 scripts/parse-dns-csv.js

diff --git a/package.json b/package.json
index 119942cbc5..ddd9109f0f 100644
--- a/package.json
+++ b/package.json
@@ -122,6 +122,7 @@
     "email-templates": "11.1.1",
     "error-stack-parser": "2.1.4",
     "etag": "1.8.1",
+    "fast-csv": "5.0.1",
     "fast-dir-size": "1.3.0",
     "fast-safe-stringify": "2.1.1",
     "fast-xml-parser": "4.4.1",
@@ -168,7 +169,7 @@
     "lazyframe": "2.2.7",
     "lazyload": "2.0.0-rc.2",
     "libmime": "5.3.5",
-    "localhost-url-regex": "^1.0.11",
+    "localhost-url-regex": "1.0.11",
     "lodash": "4.17.21",
     "mailauth": "4.6.8",
     "mailparser": "3.7.1",
diff --git a/scripts/parse-dns-csv.js b/scripts/parse-dns-csv.js
new file mode 100644
index 0000000000..20168e42fe
--- /dev/null
+++ b/scripts/parse-dns-csv.js
@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) Forward Email LLC
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
+// eslint-disable-next-line import/no-unassigned-import
+require('#config/env');
+
+const process = require('node:process');
+const fs = require('node:fs');
+
+// eslint-disable-next-line import/no-unassigned-import
+require('#config/env');
+// eslint-disable-next-line import/no-unassigned-import
+require('#config/mongoose');
+
+const Graceful = require('@ladjs/graceful');
+const isSANB = require('is-string-and-not-blank');
+const mongoose = require('mongoose');
+const pEvent = require('p-event');
+const { parse } = require('fast-csv');
+
+const logger = require('#helpers/logger');
+const setupMongoose = require('#helpers/setup-mongoose');
+
+// FILE_PATH=the file path to the CSV file
+if (!isSANB(process.env.FILE_PATH)) throw new Error('FILE_PATH missing');
+
+const graceful = new Graceful({
+  mongooses: [mongoose],
+  logger
+});
+
+graceful.listen();
+
+(async () => {
+  await setupMongoose(logger);
+
+  const stat = await fs.promises.stat(process.env.FILE_PATH);
+  if (!stat.isFile()) throw new Error(`${process.env.FILE_PATH} is not a file`);
+
+  if (!process.env.WRITE_PATH || !process.env.WRITE_PATH.endsWith('.txt'))
+    throw new Error('Write path missing (must end in ".txt")');
+
+  try {
+    const stat2 = await fs.promises.stat(process.env.WRITE_PATH);
+    if (stat2.isFile())
+      throw new Error('Write path exists, please delete it first');
+  } catch (err) {
+    if (err.code !== 'ENOENT') throw err;
+  }
+
+  const stream = fs.createReadStream(process.env.FILE_PATH);
+  const writeStream = fs.createWriteStream(process.env.WRITE_PATH);
+
+  await pEvent(writeStream, 'open');
+
+  const REGEX = /forwardemail\.net/i;
+
+  // TODO: instead of doing this we can simply use ripgrep
+  //       `rg 'forwardemail' -i ~/Desktop/mxrecords.csv > ~/Desktop/mx.csv`
+  stream
+    .pipe(parse({ delimiter: ';' }))
+    .on('error', console.error)
+    .on('data', (row) => {
+      const [domain, exchanges] = row;
+      // write to a new file stream the domain name
+      if (REGEX.test(exchanges)) {
+        console.log('domain matched', domain);
+        writeStream.write(`${domain}\n`);
+      }
+    });
+
+  await pEvent(stream, 'end');
+
+  //
+  // TODO: open the file that was created and read each line
+  // perform DNS lookup on the domain name and create a mapping
+  // (if it is `forward-email=` then perform lookup on email addresses)
+  // (and create a mapping of email address -> [ array, of, domain, names, ... ]
+  //
+  // TODO: the "Date" header should be set in the future and spread out over a range
+  //       (e.g. 1000 emails a day every day until the entire list is sent towards)
+  //       (and we should keep track of the emails sent in a new file `emails.csv` with Email ID - that way we don't send duplicates)
+  //
+  // TODO: create an account for them automatically and email them their username and password
+  //       (import all of their domains too as domains added to the free plan -> which will put them in a drip campaign)
+  //       (their account will get auto-deleted in 30 days if they don't verify their email address)
+  //
+  // TODO: one-click link to create and one-click link to delete
+  //
+  // TODO: magic link to login on our login form
+  //
+
+  process.exit(0);
+})();