Greet new occupants (Thank you to polymath).

kaikout/database.py

@@ -465,9 +465,10 @@ class Toml:
         data_dir = Toml.get_default_data_directory()
         if not os.path.isdir(data_dir):
             os.mkdir(data_dir)
-        if not os.path.isdir(data_dir + "/toml"):
+        data_dir_toml = os.path.join(data_dir, 'toml')
-            os.mkdir(data_dir + "/toml")
+        if not os.path.isdir(data_dir_toml):
-        filename = os.path.join(data_dir, "toml", r"{}.toml".format(room))
+            os.mkdir(data_dir_toml)
+        filename = os.path.join(data_dir_toml, f'{room}.toml')
         if not os.path.exists(filename):
             Toml.create_settings_file(self, filename)
         Toml.load_jid_settings(self, room, filename)
@@ -482,13 +483,13 @@ class Toml:
             data_home = os.environ.get('APPDATA')
             if data_home is None:
                 return os.path.join(
-                    os.path.dirname(__file__) + '/kaikout_data')
+                    os.path.dirname(__file__), 'kaikout_data')
         else:
-            return os.path.join(os.path.dirname(__file__) + '/kaikout_data')
+            return os.path.join(os.path.dirname(__file__), 'kaikout_data')
 
 
     def get_data_file(data_dir, room):
-        toml_file = os.path.join(data_dir, "toml", r"{}.toml".format(room))
+        toml_file = os.path.join(data_dir, 'toml', f'{room}.toml')
         return toml_file
 
 

kaikout/utilities.py

@@ -44,9 +44,9 @@ class Config:
             data_home = os.environ.get('APPDATA')
             if data_home is None:
                 return os.path.join(
-                    os.path.dirname(__file__) + '/kaikout_data')
+                    os.path.dirname(__file__), 'kaikout_data')
         else:
-            return os.path.join(os.path.dirname(__file__) + '/kaikout_data')
+            return os.path.join(os.path.dirname(__file__), 'kaikout_data')
 
 
     def get_default_config_directory():
@@ -91,8 +91,8 @@ class Config:
 
     def get_values(filename, key=None):
         config_dir = Config.get_default_config_directory()
-        if not os.path.isdir(config_dir): config_dir = '/usr/share/kaikout/'
+        if not os.path.isdir(config_dir): config_dir = os.path.join('usr', 'share', 'kaikout')
-        if not os.path.isdir(config_dir): config_dir = os.path.dirname(__file__) + "/assets"
+        if not os.path.isdir(config_dir): config_dir = os.path.join(os.path.dirname(__file__), 'assets')
         config_file = os.path.join(config_dir, filename)
         with open(config_file, mode="rb") as f: result = tomllib.load(f)
         values = result[key] if key else result
@@ -136,14 +136,73 @@ class Documentation:
 class Log:
 
 
-    def csv(filename, fields):
+    def jid_exist(filename, fields):
         """
-        Log message to CSV file.
+        Ceck whether Alias and Jabber ID exist.
 
         Parameters
         ----------
-        message : slixmpp.stanza.message.Message
+        filename : str
-            Message object.
+            Filename.
+        fields : list
+            jid, alias, timestamp.
+    
+        Returns
+        -------
+        None.
+        """
+        data_dir = Config.get_default_data_directory()
+        if not os.path.isdir(data_dir): return False
+        data_dir_logs = os.path.join(data_dir, 'logs')
+        if not os.path.isdir(data_dir_logs): return False
+        csv_file = os.path.join(data_dir_logs, f'{filename}.csv')
+        if not os.path.exists(csv_file): return False
+        with open(csv_file, 'r') as f:
+            reader = csv.reader(f)
+            for line in reader:
+                if line[0] == fields[0]:
+                    return True
+
+
+    def alias_jid_exist(filename, fields):
+        """
+        Ceck whether Alias and Jabber ID exist.
+
+        Parameters
+        ----------
+        filename : str
+            Filename.
+        fields : list
+            jid, alias, timestamp.
+    
+        Returns
+        -------
+        None.
+        """
+        data_dir = Config.get_default_data_directory()
+        if not os.path.isdir(data_dir): return False
+        data_dir_logs = os.path.join(data_dir, 'logs')
+        if not os.path.isdir(data_dir_logs): return False
+        csv_file = os.path.join(data_dir_logs, f'{filename}.csv')
+        if not os.path.exists(csv_file): return False
+        with open(csv_file, 'r') as f:
+            reader = csv.reader(f)
+            for line in reader:
+                if line[0] == fields[0] and line[1] == fields[1]:
+                    return True
+                    
+
+
+    def csv_jid(filename, fields):
+        """
+        Log Jabber ID to CSV file.
+
+        Parameters
+        ----------
+        filename : str
+            Filename.
+        fields : list
+            jid, alias, timestamp.
     
         Returns
         -------
@@ -151,11 +210,42 @@ class Log:
         """
         data_dir = Config.get_default_data_directory()
         if not os.path.isdir(data_dir): os.mkdir(data_dir)
-        if not os.path.isdir(data_dir + "/logs"): os.mkdir(data_dir + "/logs")
+        data_dir_logs = os.path.join(data_dir, 'logs')
-        csv_file = os.path.join(data_dir, "logs", r"{}.csv".format(filename))
+        if not os.path.isdir(data_dir_logs): os.mkdir(data_dir_logs)
+        csv_file = os.path.join(data_dir_logs, f'{filename}.csv')
+        if not os.path.exists(csv_file):
+            columns = ['jid', 'alias', 'timestamp']
+            with open(csv_file, 'w') as f:
+                writer = csv.writer(f)
+                writer.writerow(columns)
+        with open(csv_file, 'a') as f:
+            writer = csv.writer(f)
+            writer.writerow(fields)
+
+
+    def csv(filename, fields):
+        """
+        Log message or presence to CSV file.
+
+        Parameters
+        ----------
+        filename : str
+            Filename.
+        fields : list
+            type, timestamp, alias, body, lang, and identifier.
+    
+        Returns
+        -------
+        None.
+        """
+        data_dir = Config.get_default_data_directory()
+        if not os.path.isdir(data_dir): os.mkdir(data_dir)
+        data_dir_logs = os.path.join(data_dir, 'logs')
+        if not os.path.isdir(data_dir_logs): os.mkdir(data_dir_logs)
+        csv_file = os.path.join(data_dir_logs, f'{filename}.csv')
         if not os.path.exists(csv_file):
             columns = ['type', 'timestamp', 'alias', 'body', 'lang', 'identifier']
-            with open(csv_file, 'a') as f:
+            with open(csv_file, 'w') as f:
                 writer = csv.writer(f)
                 writer.writerow(columns)
         with open(csv_file, 'a') as f:

kaikout/xmpp/client.py

@@ -211,6 +211,15 @@ class XmppClient(slixmpp.ClientXMPP):
         filename = datetime.today().strftime('%Y-%m-%d') + '_' + room
         Log.csv(filename, fields)
         jid_bare = presence['muc']['jid'].bare
+        fields = [jid_bare, alias, timestamp_iso]
+        if jid_bare:
+            if not Log.jid_exist(room, fields):
+                message_body = (f'Welcome, {alias}! We hope that you would '
+                                'have a good time at this group chat.')
+                XmppMessage.send(self, room, message_body, 'groupchat')
+                Log.csv_jid(room, fields)
+            elif not Log.alias_jid_exist(room, fields):
+                Log.csv_jid(room, fields)
         if (XmppMuc.is_moderator(self, room, self.alias) and
             self.settings[room]['enabled'] and
             jid_bare and
@@ -263,6 +272,13 @@ class XmppClient(slixmpp.ClientXMPP):
         alias = presence['muc']['nick']
         room = presence['muc']['room']
         if actor and alias == self.alias: XmppStatus.send_status_message(self, room)
+        # TODO Check whether group chat is not anonymous
+        if XmppMuc.is_moderator(self, room, self.alias):
+            timestamp_iso = datetime.now().isoformat()
+            for alias in XmppMuc.get_roster(self, room):
+                jid_bare = XmppMuc.get_full_jid(self, room, alias).split('/')[0]
+                fields = [jid_bare, alias, timestamp_iso]
+                if not Log.alias_jid_exist(room, fields): Log.csv_jid(room, fields)
 
 
     def on_reactions(self, message):