commit 45244050ea37b758dfdab025415cca49f08881bb
Author: Stefan Schwarz <stefan@f2o.io>
Date:   Sat Feb 6 12:43:23 2021 +0100

    init

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..051d09d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+eval "$(lorri direnv)"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..47def24
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/env/
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d9d7e8f
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,9 @@
+FROM python:3.8
+
+WORKDIR /app
+RUN true \
+	&& pip install dnspython matrix-nio
+
+ADD . /app
+
+CMD python key.py
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..13f8aaf
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# dnswatch
+
+Watch a bunch of domains for changes
diff --git a/key.py b/key.py
new file mode 100644
index 0000000..6cbc689
--- /dev/null
+++ b/key.py
@@ -0,0 +1,57 @@
+import asyncio
+import os
+import time
+
+import dns.resolver
+from nio import AsyncClient
+
+
+class App:
+    def __init__(self, user="", password="", room_id="", records=[]):
+        self.user = user
+        self.password = password
+        self.room_id = room_id
+        self.records = records
+        self.cache = {}
+        self.resolver = dns.resolver.Resolver()
+        self.resolver.nameservers = ['8.8.8.8']
+        self.client = AsyncClient("https://doesnt.social", self.user)
+
+    async def setup(self):
+        status = await self.client.login(self.password)
+        print(status)
+        print("i will be monitoring: {self.records}")
+        await self.send_message("hi there, i'm marvin")
+
+    async def send_message(self, message: str):
+        await self.client.room_send(
+            room_id=self.room_id,
+            message_type="m.room.message",
+            content={"msgtype": "m.text", "body": message},
+        )
+
+    async def run(self):
+        await self.setup()
+        while True:
+            await self.update()
+            time.sleep(60)
+
+    async def update(self):
+        for record in self.records:
+            print(f"checking {record}")
+            results = self.resolver.resolve(record)
+            results = [str(r) for r in results]
+            results.sort()
+            if results != self.cache.get(record, []):
+                await self.send_message(f"records for {record} updated: {results}")
+            self.cache[record] = results
+
+
+if __name__ == "__main__":
+    app = App(
+        user=os.environ["USER"],
+        password=os.environ["PASSWORD"],
+        room_id=os.environ["ROOM_ID"],
+        records=os.environ["RECORDS"].split(","),
+    )
+    asyncio.get_event_loop().run_until_complete(app.run())
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..aa038c7
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,11 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.bashInteractive
+    (pkgs.python38.withPackages (ps: [
+      ps.dnspython
+      ps.matrix-nio
+    ]))
+  ];
+}