73a5189398
BridgeMessage is a type of chat message content which will be sent from Matterbridge. It contains fields: - bridge name - depends on the used bridge, eg. "discord", "slack", etc... - user name - username the message was received from - content - message content - user avatar - message id - parent message id - used in case of replies Message is saved to a separated table: bridge_messages, similarly to discord messages. The user_messages table is untouched. bridge_messages table contains user_messages_id in order to join with user_messages table. Issue #13098
protocol/encryption package
Hash ratchet encryption
encryptor.GenerateHashRatchetKey() generates a hash ratchet key and stores it in in the DB.
There, 2 new tables are created: hash_ratchet_encryption and hash_ratchet_encryption_cache.
Each hash ratchet key is uniquely identified by the (groupId, keyId) pair, where keyId is derived from a clock value.
protocol.BuildHashRatchetKeyExchangeMessage builds an 1-on-1 message containing the hash ratchet key, given it's ID.
protocol.BuildHashRatchetMessage builds a hash ratchet message with arbitrary payload, given groupId. It will use the latest hash ratchet key available. encryptor.encryptWithHR encrypts the payload using Hash Ratchet algorithms. Intermediate hashes are stored in hash_ratchet_encryption_cache table.
protocol.HandleMessage uses encryptor.decryptWithHR fn for decryption.