Cache meeting and session data betweens runs

bigbluebutton/api/bigbluebutton.py

@@ -69,6 +69,7 @@ class BigBlueButton:
     sysstat: Optional[SadfReport] = field(default=None, init=False, compare=False)
 
     request_timeout: Union[float, Tuple[float, float]] = field(default=(0.5, 10), compare=False)
+    cache_timeout: float = field(default=30, compare=False)
 
     def __post_init__(self):
         """Set up the server object to work properly.
@@ -80,7 +81,15 @@ class BigBlueButton:
         logger.debug(f"Self-registered server {self.name} in group {self.group.name}")
 
         # Use persistent HTTP session to track JSESSIONID cookie (et al)
-        self._session = requests.Session()
+        self._session = cache.get(f"{self.url}::session") or requests.Session()
+
+        # Restore meeting data from last time if any
+        self.meetings = cache.get(f"{self.url}::meetings") or {}
+
+    def __del__(self):
+        """Store meeting and session data for next time."""
+        cache.set(f"{self.url}::meetings", self.meetings, self.cache_timeout)
+        cache.set(f"{self.url}::session", self._session, self.cache_timeout)
 
     @staticmethod
     def request_checksum(call: str, query: str, salt: str) -> str:
@@ -304,7 +313,7 @@ class BigBlueButtonGroup:
     :param origin: Name of the origin software passed as meeting meta-data
     :param origin_server_name: Hostname of the origin, passed as meeting meta-data;
                                defaults to the systems's local FQDN
-    :param generate_meeting_id: Callable to run for generating meeting IDs
+    :param generate_meeting_id_cb: Callable to run for generating meeting IDs
     """
 
     name: str
@@ -316,7 +325,18 @@ class BigBlueButtonGroup:
     origin: str = "python-bigbluebutton2"
     origin_server_name: str = field(default_factory=getfqdn)
 
-    generate_meeting_id: Callable[[], str] = field(default=lambda: str(uuid1()), compare=False)
+    generate_meeting_id_cb: Optional[Callable[[], str]] = field(default=None, compare=False)
+
+    def generate_meeting_id(self) -> str:
+        """Generate a unique meeting ID.
+
+        By default, this returns a GUID, unless a callback was defined in the
+        `generate_meeting_id_cb` attribute.
+        """
+        if self.generate_meeting_id_cb is None:
+            return str(uuid1())
+        else:
+            return self.generate_meeting_id_cb()
 
     @property
     def meetings(self) -> Dict[str, "Meeting"]: