Sanitise all API inputs

[minorDeveloper]

[minorDeveloper]

Need to make sure that all API inputs are sensible before transmitting any messages. This serves as a central location to check rather then pushing it to the output and across a wide range of files. Of course all control functionality will need to further sanitise their data input as the API has no knowledge of the format of these messages (might be something to consider but I don't know how).