Start handling messages in InventoryManager

hippolyzer/lib/base/inventory.py

@@ -11,6 +11,7 @@ It's typically only used for object contents now.
 from __future__ import annotations
 
 import abc
+import asyncio
 import dataclasses
 import datetime as dt
 import inspect
@@ -202,6 +203,7 @@ class InventoryModel(InventoryBase):
     def __init__(self):
         self.nodes: Dict[UUID, InventoryNodeBase] = {}
         self.root: Optional[InventoryContainerBase] = None
+        self.any_dirty = asyncio.Event()
 
     @classmethod
     def from_reader(cls, reader: StringIO, read_header=False) -> InventoryModel:
@@ -246,6 +248,12 @@ class InventoryModel(InventoryBase):
             if isinstance(node, InventoryContainerBase):
                 yield node
 
+    @property
+    def dirty_categories(self) -> Iterable[InventoryCategory]:
+        for node in self.nodes:
+            if isinstance(node, InventoryCategory) and node.version == InventoryCategory.VERSION_NONE:
+                yield node
+
     @property
     def all_items(self) -> Iterable[InventoryItem]:
         for node in self.nodes.values():
@@ -273,6 +281,29 @@ class InventoryModel(InventoryBase):
             if node.parent_id == UUID.ZERO:
                 self.root = node
         node.model = weakref.proxy(self)
+        return node
+
+    def update(self, node: InventoryNodeBase, update_fields: Optional[Iterable[str]] = None) -> InventoryNodeBase:
+        """Update an existing node, optionally only updating specific fields"""
+        if node.node_id not in self.nodes:
+            raise KeyError(f"{node.node_id} not in the inventory model")
+
+        orig_node = self.nodes[node.node_id]
+        if node.__class__ != orig_node.__class__:
+            raise ValueError(f"Tried to update {orig_node!r} from non-matching {node!r}")
+
+        if not update_fields:
+            # Update everything but the model parameter
+            update_fields = set(node._get_fields_dict().keys()) - {"model"}
+        for field_name in update_fields:
+            setattr(orig_node, field_name, getattr(node, field_name))
+        return orig_node
+
+    def upsert(self, node: InventoryNodeBase, update_fields: Optional[Iterable[str]] = None) -> InventoryNodeBase:
+        """Add or update a node"""
+        if node.node_id in self.nodes:
+            return self.update(node, update_fields)
+        return self.add(node)
 
     def unlink(self, node: InventoryNodeBase, single_only: bool = False) -> Sequence[InventoryNodeBase]:
         """Unlink a node and its descendants from the tree, returning the removed nodes"""
@@ -313,6 +344,10 @@ class InventoryModel(InventoryBase):
             removed=removed_in_other,
         )
 
+    def flag_if_dirty(self):
+        if any(self.dirty_categories):
+            self.any_dirty.set()
+
     def __getitem__(self, item: UUID) -> InventoryNodeBase:
         return self.nodes[item]
 
@@ -562,7 +597,8 @@ class InventoryItem(InventoryNodeBase):
     def from_inventory_data(cls, block: Block):
         return cls(
             item_id=block["ItemID"],
-            parent_id=block["ParentID"],
+            # Might be under one of two names
+            parent_id=block.get("ParentID", block["FolderID"]),
             permissions=InventoryPermissions(
                 creator_id=block["CreatorID"],
                 owner_id=block["OwnerID"],
@@ -573,7 +609,8 @@ class InventoryItem(InventoryNodeBase):
                 everyone_mask=block["EveryoneMask"],
                 next_owner_mask=block["NextOwnerMask"],
             ),
-            asset_id=block["AssetID"],
+            # May be missing in UpdateInventoryItem
+            asset_id=block.get("AssetID"),
             type=AssetType(block["Type"]),
             inv_type=InventoryType(block["InvType"]),
             flags=block["Flags"],

hippolyzer/lib/client/inventory_manager.py

@@ -8,6 +8,7 @@ from typing import Union, List, Tuple, Set
 from hippolyzer.lib.base import llsd
 from hippolyzer.lib.base.datatypes import UUID
 from hippolyzer.lib.base.inventory import InventoryModel, InventoryCategory, InventoryItem
+from hippolyzer.lib.base.message.message import Message
 from hippolyzer.lib.base.templates import AssetType, FolderType
 from hippolyzer.lib.client.state import BaseClientSession
 
@@ -20,6 +21,10 @@ class InventoryManager:
         self._session = session
         self.model: InventoryModel = InventoryModel()
         self._load_skeleton()
+        self._session.message_handler.subscribe("BulkUpdateInventory", self._handle_bulk_update_inventory)
+        self._session.message_handler.subscribe("UpdateCreateInventoryItem", self._handle_update_create_inventory_item)
+        self._session.message_handler.subscribe("UpdateInventoryItem", self._handle_update_inventory_item)
+        self._session.message_handler.subscribe("RemoveInventoryItem", self._handle_remove_inventory_item)
 
     def _load_skeleton(self):
         assert not self.model.nodes
@@ -68,10 +73,8 @@ class InventoryManager:
             # Cached cat isn't the same as what the inv server says it should be, can't use it.
             if cached_cat.version != skel_versions.get(cached_cat.cat_id):
                 continue
-            if existing_cat:
-                # Remove the category so that we can replace it, but leave any children in place
-                self.model.unlink(existing_cat, single_only=True)
-            self.model.add(cached_cat)
+            # Update any existing category in-place, or add if not present
+            self.model.upsert(cached_cat)
             # Any items in this category in our cache file are usable and should be added
             loaded_cat_ids.add(cached_cat.cat_id)
 
@@ -81,10 +84,13 @@ class InventoryManager:
             if cached_item.item_id in self.model:
                 continue
             # The parent category didn't have a cache hit against the inventory skeleton, can't add!
+            # We don't even know if this item would be in the current version of it's parent cat!
             if cached_item.parent_id not in loaded_cat_ids:
                 continue
             self.model.add(cached_item)
 
+        self.model.flag_if_dirty()
+
     def _parse_cache(self, path: Union[str, Path]) -> Tuple[List[InventoryCategory], List[InventoryItem]]:
         """Warning, may be incredibly slow due to llsd.parse_notation() behavior"""
         categories: List[InventoryCategory] = []
@@ -112,3 +118,44 @@ class InventoryManager:
                 else:
                     LOG.warning(f"Unknown node type in inv cache: {node_llsd!r}")
         return categories, items
+
+    def _handle_bulk_update_inventory(self, msg: Message):
+        any_cats = False
+        for folder_block in msg["FolderData"]:
+            if folder_block["FolderID"] == UUID.ZERO:
+                continue
+            any_cats = True
+            self.model.upsert(
+                InventoryCategory.from_folder_data(folder_block),
+                # Don't clobber version, we only want to fetch the folder if it's new
+                # and hasn't just moved.
+                update_fields={"parent_id", "name", "pref_type"},
+            )
+        for item_block in msg["ItemData"]:
+            if item_block["ItemID"] == UUID.ZERO:
+                continue
+            self.model.upsert(InventoryItem.from_inventory_data(item_block))
+
+        if any_cats:
+            self.model.flag_if_dirty()
+
+    def _validate_recipient(self, recipient: UUID):
+        if self._session.agent_id != recipient:
+            raise ValueError(f"AgentID Mismatch {self._session.agent_id} != {recipient}")
+
+    def _handle_update_create_inventory_item(self, msg: Message):
+        self._validate_recipient(msg["AgentData"]["AgentID"])
+        for inventory_block in msg["InventoryData"]:
+            self.model.upsert(InventoryItem.from_inventory_data(inventory_block))
+
+    def _handle_update_inventory_item(self, msg: Message):
+        self._validate_recipient(msg["AgentData"]["AgentID"])
+        for inventory_block in msg["InventoryData"]:
+            self.model.update(InventoryItem.from_inventory_data(inventory_block))
+
+    def _handle_remove_inventory_item(self, msg: Message):
+        self._validate_recipient(msg["AgentData"]["AgentID"])
+        for inventory_block in msg["InventoryData"]:
+            node = self.model.get(inventory_block["ItemID"])
+            if node:
+                self.model.unlink(node)