Initial commit

jelly.py

@@ -0,0 +1,54 @@
+import signal
+import socket
+import sys
+import os
+
+def graceful_exit(signum, frame):
+    print(f"Exit requested by {signum}")
+    sys.exit(0)
+
+def get_env(name):
+    value = os.environ.get(name)
+    if value is None:
+        print(f"Missing env variable '{name}'")
+        print("Exiting")
+        sys.exit(1)
+
+    return value
+
+def main():
+    jelly_id = get_env('JELLY_ID')
+    jelly_name = get_env('JELLY_NAME')
+    jelly_addr = get_env('JELLY_ADDR')
+
+    payload = ('{"Address":"%(addr)s","Id":"%(id)s","Name":"%(name)s","EndpointAddress":null}' % {
+        'addr': jelly_addr,
+        'id': jelly_id,
+        'name': jelly_name,
+    }).encode()
+
+    print(f"Listening for JellyFin client discovery broadcasts")
+    print('Address: "%(addr)s", Id: "%(id)s", Name: "%(name)s"' % {
+        'addr': jelly_addr,
+        'id': jelly_id,
+        'name': jelly_name,
+    })
+
+    signal.signal(signal.SIGINT, graceful_exit)
+    signal.signal(signal.SIGTERM, graceful_exit)
+
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    s.bind(('', 7359))
+
+    while True:
+        msg, addr = s.recvfrom(1024)
+
+        if msg == b'Who is JellyfinServer?':
+            print(f"Broadcast {addr}: {msg}")
+            s.sendto(payload, addr)
+        else:
+            print(f"Unknown broadcast {addr}: {msg}")
+
+if __name__ == "__main__":
+    main()
+