config: Allow notifications to be disabled in the config.

contrib/pantalaimon.conf

@@ -1,6 +1,7 @@
 [Default]
 LogLevel = Debug
 SSL = True
+Notifications = On
 
 [local-matrix]
 Homeserver = https://localhost:8448

pantalaimon/config.py

@@ -32,6 +32,7 @@ class PanConfigParser(configparser.ConfigParser):
                 "ListenAddress": "localhost",
                 "ListenPort": "8009",
                 "LogLevel": "warnig",
+                "Notifications": "on",
             },
             converters={
                 "address": parse_address,
@@ -124,6 +125,7 @@ class PanConfig:
     config_file = attr.ib()
 
     log_level = attr.ib(default=None)
+    notifications = attr.ib(default=None)
     servers = attr.ib(init=False, default=attr.Factory(dict))
 
     def read(self):
@@ -141,6 +143,9 @@ class PanConfig:
         if self.log_level is None:
             self.log_level = config["Default"].getloglevel("LogLevel")
 
+        if self.notifications is None:
+            self.notifications = config["Default"].getboolean("Notifications")
+
         listen_set = set()
 
         try:

pantalaimon/main.py

@@ -176,7 +176,7 @@ def main(
         proxies.append(proxy)
 
     glib_thread = GlibT(pan_queue.sync_q, ui_queue.sync_q, data_dir,
-                        pan_conf.servers.values())
+                        pan_conf.servers.values(), pan_conf)
 
     glib_fut = loop.run_in_executor(
         None,

pantalaimon/ui.py

@@ -402,6 +402,7 @@ class GlibT:
     send_queue = attr.ib()
     data_dir = attr.ib()
     server_list = attr.ib()
+    config = attr.ib()
 
     loop = attr.ib(init=False)
     store = attr.ib(init=False)
@@ -633,11 +634,14 @@ class GlibT:
     def run(self):
         self.loop = GLib.MainLoop()
 
-        try:
-            notify2.init("pantalaimon", mainloop=self.loop)
-            self.notifications = True
-        except dbus.DBusException:
-            self.notifications = False
+        if self.config.notifications:
+            try:
+                notify2.init("pantalaimon", mainloop=self.loop)
+                self.notifications = True
+            except dbus.DBusException:
+                logger.error("Notifications are enabled but no notification "
+                             "server could be found, disabling notifications.")
+                self.notifications = False
 
         GLib.timeout_add(100, self.message_callback)
         self.loop.run()