Add interfaces selection for mDNS broadcast

- System setting added
- Loop through list of interfaces

data/other/mdns.py

@@ -19,26 +19,23 @@ from typing import List
 sys.path.insert(0, "/usr/lib/moulinette/")
 from yunohost.domain import domain_list
 from yunohost.utils.network import get_network_interfaces
+from yunohost.settings import settings_get
+from moulinette import m18n
+from moulinette.interfaces.cli import get_locale
 
-from zeroconf import IPVersion
 from zeroconf.asyncio import AsyncServiceInfo, AsyncZeroconf
 
-# TODO: Remove traceback beautification
-from rich.traceback import install
-install(show_locals=True)
 
-async def register_services(infos: List[AsyncServiceInfo]) -> None:
+async def register_services(aiozc: AsyncZeroconf, infos: List[AsyncServiceInfo]) -> None:
     tasks = [aiozc.async_register_service(info) for info in infos]
     background_tasks = await asyncio.gather(*tasks)
     await asyncio.gather(*background_tasks)
 
-
-async def unregister_services(infos: List[AsyncServiceInfo]) -> None:
+async def unregister_services(aiozc: AsyncZeroconf, infos: List[AsyncServiceInfo]) -> None:
     tasks = [aiozc.async_unregister_service(info) for info in infos]
     background_tasks = await asyncio.gather(*tasks)
     await asyncio.gather(*background_tasks)
 
-
 async def close_aiozc(aiozc: AsyncZeroconf) -> None:
     await aiozc.async_close()
 
@@ -46,22 +43,6 @@ async def close_aiozc(aiozc: AsyncZeroconf) -> None:
 if __name__ == '__main__':
     logging.basicConfig(level=logging.DEBUG)
 
-    local_domains = [ d for d in domain_list()['domains'] if d.endswith('.local') ]
-
-    # TODO: Create setting to list interfaces
-    wanted_interfaces = [ 'zt3jnskpna' ]
-    interfaces = get_network_interfaces()
-    ips = []
-    for i in wanted_interfaces:
-        try:
-            ips.append(socket.inet_pton(socket.AF_INET, interfaces[i]['ipv4'].split('/')[0]))
-        except:
-            pass
-        try:
-            ips.append(socket.inet_pton(socket.AF_INET6, interfaces[i]['ipv6'].split('/')[0]))
-        except:
-            pass
-
     parser = argparse.ArgumentParser()
     parser.add_argument('--debug', action='store_true')
     args = parser.parse_args()
@@ -69,24 +50,62 @@ if __name__ == '__main__':
     if args.debug:
         logging.getLogger('zeroconf').setLevel(logging.DEBUG)
 
-    infos = []
-    for d in local_domains:
-        d_domain=d.replace('.local','')
-        infos.append(
-            AsyncServiceInfo(
-                type_="_device-info._tcp.local.",
-                name=d_domain+f"._device-info._tcp.local.",
-                addresses=ips,
-                port=80,
-                server=d+'.',
-            )
-        )
 
-    print("Registration of .local domains, press Ctrl-C to exit...")
-    aiozc = AsyncZeroconf()
-    loop = asyncio.get_event_loop()
-    loop.run_until_complete(register_services(infos))
-    print("Registration complete.")
+    local_domains = [ d for d in domain_list()['domains'] if d.endswith('.local') ]
+
+    m18n.load_namespace("yunohost")
+    m18n.set_locale(get_locale())
+
+    if settings_get('mdns.interfaces'):
+        wanted_interfaces = settings_get('mdns.interfaces').split()
+    else:
+        wanted_interfaces = []
+        print('No interface listed for broadcast.')
+
+    aiozcs = []
+    interfaces = get_network_interfaces()
+    for interface in wanted_interfaces:
+        infos = []
+        ips = [] # Human-readable IPs
+        b_ips = [] # Binary-convered IPs
+
+        # Parse the IPs and prepare their binary version
+        try:
+            ip = interfaces[interface]['ipv4'].split('/')[0]
+            ips.append(ip)
+            b_ips.append(socket.inet_pton(socket.AF_INET, ip))
+        except:
+            pass
+        try:
+            ip = interfaces[interface]['ipv6'].split('/')[0]
+            ips.append(ip)
+            b_ips.append(socket.inet_pton(socket.AF_INET6, ip))
+        except:
+            pass
+
+        # Create a ServiceInfo object for each .local domain
+        for d in local_domains:
+            d_domain=d.replace('.local','')
+            infos.append(
+                AsyncServiceInfo(
+                    type_="_device-info._tcp.local.",
+                    name=d_domain+f"._device-info._tcp.local.",
+                    addresses=b_ips,
+                    port=80,
+                    server=d+'.',
+                )
+            )
+            print('Adding '+d+' with addresses '+str(ips)+' on interface '+interface)
+
+        # Create an AsyncZeroconf object, store it, and start Service registration
+        aiozc = AsyncZeroconf(interfaces=ips)
+        aiozcs.append(aiozc)
+        print("Registration on interface "+interface+"...")
+        loop = asyncio.get_event_loop()
+        loop.run_until_complete(register_services(aiozc, infos))
+
+    # We are done looping among the interfaces
+    print("Registration complete. Press Ctrl-c to exit...")
     try:
         while True:
             time.sleep(0.1)
@@ -94,7 +113,8 @@ if __name__ == '__main__':
         pass
     finally:
         print("Unregistering...")
-        loop.run_until_complete(unregister_services(infos))
+        for aiozc in aiozcs:
+            loop.run_until_complete(unregister_services(aiozc, infos))
+            loop.run_until_complete(close_aiozc(aiozc))
         print("Unregistration complete.")
-        loop.run_until_complete(close_aiozc(aiozc))
 

locales/en.json

@@ -321,6 +321,7 @@
     "global_settings_cant_write_settings": "Could not save settings file, reason: {reason:s}",
     "global_settings_key_doesnt_exists": "The key '{settings_key:s}' does not exist in the global settings, you can see all the available keys by running 'yunohost settings list'",
     "global_settings_reset_success": "Previous settings now backed up to {path:s}",
+    "global_settings_setting_mdns_interfaces": "Space-separated list of interfaces for mDNS broadcast. Leave empty to disable mDNS.",
     "global_settings_setting_pop3_enabled": "Enable the POP3 protocol for the mail server",
     "global_settings_setting_security_nginx_compatibility": "Compatibility vs. security tradeoff for the web server NGINX. Affects the ciphers (and other security-related aspects)",
     "global_settings_setting_security_password_admin_strength": "Admin password strength",

src/yunohost/settings.py

@@ -100,6 +100,7 @@ DEFAULTS = OrderedDict(
         ("smtp.relay.password", {"type": "string", "default": ""}),
         ("backup.compress_tar_archives", {"type": "bool", "default": False}),
         ("ssowat.panel_overlay.enabled", {"type": "bool", "default": True}),
+        ("mdns.interfaces", {"type": "string", "default": ""}),
     ]
 )