Add script that notifies of joins over IFTTT

.gitignore

@@ -1,2 +1,3 @@
 server.log
 map
+secrets.py

notify/notify_joins.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+# Read the Minecraft server log and diff it against the server log it saw last. If there any new joins in the diff, send
+# a notification.
+import codecs
+import os
+import re
+from datetime import datetime
+
+import requests
+
+from secrets import IFTTT_WEBHOOK_KEY_TYLER, IFTTT_WEBHOOK_KEY_KAELAN
+
+LOG_FILENAME = '/srv/minecraft-panic-shack/logs/latest.log'
+OLD_LOG_FILENAME = '/srv/minecraft-panic-shack/logs/last-read.log'
+USERNAME_BLACKLIST = ['anarchyeight', 'kinedactyl']
+IFTTT_EVENT_NAME = 'user_joined_panic_shack'
+
+
+def read_log(filename):
+    with codecs.open(filename, encoding='utf-8') as log:
+        return log.readlines()
+
+
+def save_log(filename, lines):
+    with codecs.open(filename, 'w', encoding='utf-8') as log:
+        log.writelines(lines)
+
+
+if __name__ == '__main__':
+    if (datetime.fromtimestamp(os.path.getmtime(LOG_FILENAME)) >
+            datetime.fromtimestamp(os.path.getmtime(OLD_LOG_FILENAME))):
+        new_log = read_log(LOG_FILENAME)
+        old_log = read_log(OLD_LOG_FILENAME)
+        if new_log[0] != old_log[0]:
+            # A log rotate occured
+            old_log = []
+        if len(new_log) > len(old_log):
+            for new_line in new_log[len(old_log):]:
+                match = re.match('[\[][0-9:]+[\]]\s[\[]Server thread/INFO]: (\S+) joined the game', new_line)
+                if match:
+                    username = match.group(1)
+                    if username not in USERNAME_BLACKLIST:
+                        # IFTTT does not support sharing Applets anymore :(
+                        r = requests.post(
+                            'https://maker.ifttt.com/trigger/{}/with/key/{}'.format(IFTTT_EVENT_NAME,
+                                                                                    IFTTT_WEBHOOK_KEY_TYLER),
+                            data={'value1': username})
+                        r = requests.post(
+                            'https://maker.ifttt.com/trigger/{}/with/key/{}'.format(IFTTT_EVENT_NAME,
+                                                                                    IFTTT_WEBHOOK_KEY_KAELAN),
+                            data={'value1': username})
+        save_log(OLD_LOG_FILENAME, new_log)

tox.ini

@@ -0,0 +1,2 @@
+[flake8]
+max_line_length = 120