Update cross chain registration command

[ishantiw]

Description

• Update schema

registrationCCMParamsSchema = {
    "type": "object",
    "required" : [
        "name",
        "messageFeeTokenID"
    ],
    "properties": {
        "name": {
            "dataType": "string",
            "fieldNumber": 1
        },
        "messageFeeTokenID": {
            "dataType": "bytes",
            "length": TOKEN_ID_LENGTH,
            "fieldNumber": 2
        }
    }
}

• Update verification

def verify(ccu: Transaction, ccm: CCM) -> None:
    if channel(ccm.sendingChainID).inbox.size != 0:
        raise Exception("Registration message must be the first message in the inbox.")

    if ccm.status != CCM_STATUS_CODE_OK:
        raise Exception("Registration message must have status OK.")

    if ownChainAccount.chainID != ccm.receivingChainID:
        raise Exception("Registration message must be sent to the chain account ID of the chain.")

    if ownChainAccount.name != ccm.params.name:
        raise Exception("Registration message must contain the name of the registered chain.")

    if channel(ccm.sendingChainID).messageFeeTokenID != ccm.params.messageFeeTokenID:
        raise Exception("Registration message must contain the same message fee token ID as the chain account.")

    # Processing on the mainchain.
    if ownChainAccount.chainID == CHAIN_ID_MAINCHAIN:
        if ccm.nonce != 0:
            raise Exception("Registration message must have nonce 0.")
    # Processing on a sidechain.
    else:
        if ccm.sendingChainID != CHAIN_ID_MAINCHAIN:
            raise Exception("Registration message must be sent from the mainchain.")

• Update execute method

def execute(ccu: Transaction, ccm: CCM) -> None:
    # Activate the chain account.
    chainAccount(ccm.sendingChainID).status = CHAIN_STATUS_ACTIVE
    # Emit chain account updated event.
    emitEvent(
        module = MODULE_NAME_INTEROPERABILITY,
        name = EVENT_NAME_CHAIN_ACCOUNT_UPDATED,
        data = chainAccount(ccm.sendingChainID),
        topics = [ccm.sendingChainID]
    )

Acceptance Criteria

• Should have all the unit tests

Additional Information

• Related PR Update Interoperability LIPs lips#148
• Related LIP https://github.com/LiskHQ/lips/blob/main/proposals/lip-0049.md