use discord instead of sendgrid

.gitignore

@@ -10,7 +10,7 @@ config/*.ign
 config/*.iso
 
 # website
-website/sendgrid.key
+website/discord.txt
 
 # minecraft
 minecraft/server.properties

config/server.example

@@ -17,7 +17,7 @@
         }
     ],
     "website": {
-        "sendgrid_key": "<SendGrid API key from https://app.sendgrid.com/settings/api_keys>"
+        "discord_hook": "<Secret Discord Webhook>"
     },
     "minecraft": {
         "world": "main"

config/update.py

@@ -27,8 +27,8 @@ IMAGES = {
 
 def generate(cfg):
     # website
-    with open("website/sendgrid.key", "w") as f:
-        f.write(cfg["website"]["sendgrid_key"])
+    with open("website/discord.txt", "w") as f:
+        f.write(cfg["website"]["discord_hook"])
 
     # minecraft
     shutil.copy("minecraft/server.default", "minecraft/server.properties")

website/Dockerfile

@@ -6,13 +6,13 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 RUN apt-get update && apt-get -y upgrade
 RUN apt-get install -y nginx certbot python3-pip
-RUN pip3 install sendgrid --break-system-packages
+RUN pip3 install requests --break-system-packages
 
 WORKDIR /root
 
 # TODO make the website code not terrible ;-;
 COPY html /var/www/html
-COPY sendgrid.key ip.py ./
+COPY discord.txt ip.py ./
 COPY server.conf entry.sh ./
 
 CMD ["/bin/bash", "/root/entry.sh"]

website/ip.py

@@ -1,45 +1,44 @@
 #!/usr/bin/env python3
 
+import requests
 import time
-import urllib.request
 from ipaddress import ip_network
 from pathlib import Path
-from sendgrid import SendGridAPIClient
-from sendgrid.helpers.mail import Mail
 
 if __name__ == "__main__":
-    sg = SendGridAPIClient(Path("sendgrid.key").read_text())
+    link = Path("discord.txt").read_text()
 
     old_ipv4, old_ipv6 = None, None
     while True:
+        # get current ips
         try:
-            ipv4 = urllib.request.urlopen("https://v4.ident.me").read().decode("utf8")
-            ipv6 = urllib.request.urlopen("https://v6.ident.me").read().decode("utf8")
+            ipv4 = requests.get("https://v4.ident.me").text
+            ipv6 = requests.get("https://v6.ident.me").text
             ipv6 = str(ip_network(ipv6 + "/64", strict=False).network_address) # xfinity gives /64
         except Exception as e:
-            print(e)
+            print("Error while getting IP", e)
             time.sleep(60)
             continue
 
+        # send message if either changed
         if ipv4 != old_ipv4 or ipv6 != old_ipv6:
-            msg = Mail(
-                from_email="mtran319@gmail.com",
-                to_emails="mtran319@gmail.com",
-                subject="pls update ip",
-                html_content=(
-                    f"<p>old ipv4: {old_ipv4}</p>"
-                    f"<p>old ipv6: {old_ipv6}</p>"
-                    f"<p>new ipv4: {ipv4}</p>"
-                    f"<p>new ipv6: {ipv6}</p>"
-            ))
             try:
                 print(f"IP changed to {ipv4} and {ipv6}")
-                resp = sg.send(msg)
+                resp = requests.post(link, json={
+                    "content": "\n".join([
+                        f"old ipv4: {old_ipv4}",
+                        f"old ipv6: {old_ipv6}",
+                        f"new ipv4: {ipv4}",
+                        f"new ipv6: {ipv6}",
+                    ])
+                })
+                assert(resp.status_code == 204)
             except Exception as e:
-                print(e)
-                sg = SendGridAPIClient(Path("sendgrid.key").read_text())
+                print("Error while sending update", e)
                 time.sleep(60)
                 continue
 
+        # retry every hour
+        print("Retrying in 1 hour...")
         old_ipv4, old_ipv6 = ipv4, ipv6
         time.sleep(3600)