auto_follower_webhook.py new example program.

examples/auto_follower_webhook.py

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+#!/usr/bin/env python3
+
+# This is an example of a snac webhook that automatically follows all new followers.
+
+# To use it, set the variables snac_basedir and snac_user to something reasonable,
+# configure the user webhook to be http://localhost:12345, and run this program.
+
+# copyright (C) 2025 grunfink et al. / MIT license
+
+from http.server import BaseHTTPRequestHandler, HTTPServer
+import time
+import json
+import os
+
+host_name = "localhost"
+server_port = 12345
+snac_basedir = "/var/snac/example_instance"
+snac_user = "example_user"
+
+class SnacAutoResponderServer(BaseHTTPRequestHandler):
+
+    def do_POST(self):
+        self.send_response(200)
+        self.end_headers()
+
+        content_type = self.headers["content-type"]
+        content_length = int(self.headers["content-length"])
+        payload = self.rfile.read(content_length).decode("utf-8")
+
+        if content_type == "application/json":
+            try:
+                noti = json.loads(payload)
+
+                type = noti["type"]
+
+                if type == "Follow":
+                    actor = noti["actor"]
+                    cmd = "snac follow %s %s %s" % (snac_basedir, snac_user, actor)
+
+                    os.system(cmd)
+
+            except:
+                print("Error parsing notification")
+
+if __name__ == "__main__":        
+    webServer = HTTPServer((host_name, server_port), SnacAutoResponderServer)
+    print("Webhook started http://%s:%s" % (host_name, server_port))
+
+    try:
+        webServer.serve_forever()
+    except KeyboardInterrupt:
+        pass
+
+    webServer.server_close()
+    print("Webhook stopped.")