piermesh/docs/Sponge/base.md

<a id="base-primary-filtering-functionality"></a>

# base: Primary filtering functionality

### *class* Sponge.base.Filter(cache, onodeID, todo, cryptographyInfo)

Packet filtering orchestration

[🔗 Source](https://git.utopic.work/PierMesh/piermesh/src/branch/main/Sponge/base.py)

#### cache

Reference to our Daisy Cache instance

* **Type:**
  [Daisy.Cache.Cache](/PierMesh/piermesh/src/branch/main/docs/Daisy/Cache.md#Daisy.Cache.Cache)

#### onodeID

PierMesh node ID

#### todo

Reference to list of actions to do in the Node

#### cryptographyInfo

Cryptography instance for encrypting message

* **Type:**
  [Cryptography.WhaleSong.Transport](/PierMesh/piermesh/src/branch/main/docs/Cryptography/WhaleSong.md#Cryptography.WhaleSong.Transport)

#### messages

Temporary storage for unfinished messages

* **Type:**
  dict

#### submessages

Temporary storage for unfinished submessages

* **Type:**
  dict

#### completed

List of finished message ids so we don’t reprocess messages

* **Type:**
  list

#### mCheck(payload: bytes)

Check if payload bytes are msgpack encoded, otherwise skip

#### *async* protoMap(protocolID: int, packetsID, packetCount, sourceNode, submessagesIDs=[], pAction=None)

Get protocol from protocol ID using the mlookup table

#### selfCheck(packet)

Check if this is a self packet, if so skip

#### *async* sieve(packet)

Base filtering logic, takes a single MeshTastic packet