nl_tokens: Helper to read in a message from incoming message data .
pl_tokens: function readMessage ( socketData , signer ) { var identities = socketData [ 0 ] ; var signature = socketData [ 2 ] . toString ( ) ; var header = socketData [ 3 ] ; var parentHeader = socketData [ 4 ] ; var <mask> = socketData [ 5 ] ; var content = socketData [ 6 ] ; if ( ! signer . validate ( signature , [ header , parentHeader , metadata , content ] ) ) { return null ; } return createMessage ( identities , JSON . parse ( header ) , JSON . parse ( parentHeader ) , JSON . parse ( metadata ) , JSON . parse ( content ) ) ; }